FIRST BANK SYSTEM INC
S-4, 1996-01-19
NATIONAL COMMERCIAL BANKS
Previous: FIFTH THIRD BANCORP, PRE 14A, 1996-01-19
Next: FIRST BANK SYSTEM INC, 8-K, 1996-01-19



<PAGE>

      As filed with the Securities and Exchange Commission on January 19, 1996
                                                    Registration No. 33-

- ------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                            ---------------------
                                  FORM S-4
                           REGISTRATION STATEMENT
                                   Under
                         The Securities Act of 1933
                            ---------------------
                            FIRST BANK SYSTEM, INC.
            (Exact name of registrant as specified in its charter)
<TABLE>
<S>                               <C>                           <C>
            Delaware                          6711                  41-0255900
  (State or other jurisdiction    (Primary Standard Industrial    (I.R.S Employer
of incorporation or organization)  Classification Code Number)  Identification No.)
</TABLE>

                               First Bank Place
                           601 Second Avenue South
                      Minneapolis, Minnesota 55402-4302
                                (612) 973-1111
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)

                              Lee R. Mitau, Esq.
                           First Bank System, Inc.
                               First Bank Place
                           601 Second Avenue South
                      Minneapolis, Minnesota 55402-4302
                               (612) 973-1111

 (Name, address, including zip code, and telephone number, including area code,
 of agent for service)
                            ---------------------
                                   Copies to:
 Patrick F. Courtemanche, Esq.                     Craig M. Wasserman, Esq.
   Dorsey & Whitney P.L.L.P.                    Wachtell, Lipton, Rosen & Katz
     220 South Sixth Street                          51 West 52nd Street
 Minneapolis, Minnesota 55402                     New York, New York  10019
                            ---------------------
   Approximate date of commencement of proposed sale of the Securities to the
public: As soon as practicable after the effective date of this Registration
Statement.
                            ---------------------
   If any of the securities being registered on this Form are being offered
in connection with the formation of a holding company and there is compliance
with General Instruction G, check the following box. / /
                            ---------------------
                       CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------
                                                         Proposed        Proposed
        Title of Each                  Amount             Maximum         Maximum          Amount of
     Class of Securities               to be          Offering Price     Aggregate        Registration
     to be Registered(1)             Registered          Per Share     Offering Price         Fee
- ----------------------------------------------------------------------------------------------------------
<S>                            <C>                     <C>             <C>             <C>
Common Stock, $1.25 par value  16,950,057 shares(2)    Not Applicable  Not Applicable  $273,077.30(3)(4)
- ----------------------------------------------------------------------------------------------------------
</TABLE>


(1) This Registration Statement relates to securities of the Registrant issuable
    to holders of common stock of FirsTier Financial, Inc. ("FirsTier") in
    connection with the merger described herein.
(2) Based on the maximum aggregate number of shares of the Registrant's Common
    Stock issuable in the merger described herein.
(3) Pursuant to Rule 457(f)(1) and (c), the registration fee was calculated
    based on the average of the high and low price per share ($41.25) of the
    FirsTier common stock to be canceled in the merger (an aggregate of
    19,198,162 shares), as reported on The Nasdaq National Market System
    on January 12, 1996, and the maximum number of shares of such stock that
    may be outstanding immediately prior to the merger.
(4) Of such registration fee, $157,425.00 was previously paid on October 10,
    1995 upon the filing under the Securities Exchange Act of 1934 of
    preliminary copies of FirsTier's proxy materials included herein and
    $115,652.30 is being paid herewith.

                            ---------------------

   THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION
STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.

- ------------------------------------------------------------------------------

<PAGE>

                            FIRST BANK SYSTEM, INC.

                            CROSS REFERENCE SHEET
                  PURSUANT TO ITEM 501(B) OF REGULATION S-K

<TABLE>
<CAPTION>
   Item No. in Form S-4                               Location in Prospectus
   --------------------                               ----------------------
<S>                                              <C>
A. INFORMATION ABOUT THE TRANSACTION

    1. Forepart of Registration Statement        Facing page of registration statement;
       and Outside Front Cover Page of           outside front cover page of Prospectus
       Prospectus

    2. Inside Front and Outside Back Cover       Available Information; Incorporation of
       Pages of Prospectus                       Certain Documents by Reference; Table
                                                 of Contents

    3. Risk Factors, Ratio of Earnings to        Summary; Comparative Unaudited Per
       Fixed Charges and Other Information       Share Data; Historical Selected Financial
                                                 Data

    4. Terms of the Transaction                  Summary; The Merger; Incorporation of
                                                 Certain Documents by Reference

    5. Pro Forma Financial Information           Unaudited Pro Forma Combined Financial
                                                 Information

    6. Material Contacts with the Company        Summary; The Merger
       Being Acquired

    7. Additional Information Required for       *
       Reoffering by Persons and Parties
       Deemed to be Underwriters

    8. Interests of Named Experts and Counsel    Legal Opinions; Experts

    9. Disclosure of Commission Position         *
       on Indemnification for Securities
       Act Liabilities

B. INFORMATION ABOUT THE REGISTRANT

   10. Information with Respect to S-3           Available Information; Incorporation
       Registrants                               of Certain Documents by Reference;
                                                 Summary; Business of FBS; Description of
                                                 FBS Capital Stock

   11. Incorporation of Certain Information      Incorporation of Certain Documents by
       by Reference                              Reference

   12. Information with Respect to S-2 or        *
       S-3 Registrants

   13. Incorporation of Certain Information      *
       by Reference
</TABLE>


<PAGE>

<TABLE>
<CAPTION>
   Item No. in Form S-4                               Location in Prospectus
   --------------------                               ----------------------
<S>                                             <C>
   14. Information with Respect to Registrants  *
       Other Than S-2 or S-3 Registrants

C. INFORMATION ABOUT THE COMPANY BEING
   ACQUIRED

   15. Information with Respect to S-3          Incorporation of Certain Documents by
       Companies                                Reference; Summary; Business of FirsTier;
                                                Description of FirsTier Capital Stock

   16. Information with Respect to S-2 or       *
       S-3 Companies

   17. Information with Respect to              *
       Companies Other Than S-3 or S-2
       Companies

D. VOTING AND MANAGEMENT INFORMATION

   18. Information if Proxies, Consents or      Incorporation of Certain Documents by
       Authorizations are to be Solicited       Reference; Information Concerning the
                                                Special Meeting; The Merger; Management
                                                and Additional Information

   19. Information if Proxies, Consents or      *
       Authorizations are not to be Solicited
       or in an Exchange Offer
</TABLE>
________
*Answer is negative or item is not applicable.


<PAGE>
                             [FIRSTIER LETTERHEAD]

                                January 19, 1996

Dear Shareholder of FirsTier Financial, Inc.:

    You  are cordially invited to attend  a Special Meeting of Shareholders (the
"Special Meeting")  of  FirsTier Financial,  Inc.  ("FirsTier") to  be  held  on
February  16, 1996 at 10:00 a.m., local time,  in the Second Floor Board Room of
FirsTier at  1700  Farnam Street,  Omaha,  Nebraska.  A notice  of  the  Special
Meeting,  proxy statement  and form  of proxy  containing information  about the
matters to be  acted upon are  enclosed. All holders  of FirsTier's  outstanding
shares  of Common Stock,  $5.00 par value  (the "FirsTier Common  Stock"), as of
January 4,  1996 will  be entitled  to  notice of  and to  vote at  the  Special
Meeting.

    At  the Special Meeting you will be asked to consider and vote upon approval
of an Agreement of Merger and  Consolidation, dated August 6, 1995 (the  "Merger
Agreement"),  which provides for the merger  (the "Merger") of FirsTier with and
into First Bank System, Inc. ("FBS"). Upon consummation of the Merger  described
in  the accompanying  Proxy Statement/Prospectus, shareholders  of FirsTier will
receive .8829  share of  common stock,  $1.25  par value,  of FBS  ("FBS  Common
Stock")  for each issued and outstanding share of FirsTier Common Stock owned by
them. Any fractional shares of FBS  Common Stock resulting from the  application
of  the exchange  ratio will be  paid in cash.  Based on the  last reported sale
price of FBS Common Stock  on the New York Stock  Exchange on January 17,  1996,
the  exchange ratio would  result in a per  share purchase price  for a share of
FirsTier Common Stock of $42.60. Shareholders are urged to obtain current market
quotations.

    THE BOARD OF DIRECTORS OF FIRSTIER BELIEVES  THAT THE MERGER IS IN THE  BEST
INTERESTS  OF FIRSTIER AND ITS SHAREHOLDERS AND THEREFORE UNANIMOUSLY RECOMMENDS
THAT YOU VOTE IN FAVOR OF THE MERGER  AGREEMENT. It is expected that all of  the
3,032,654  shares of FirsTier  Common Stock beneficially  owned by the directors
and executive officers of FirsTier and their affiliates (approximately 16.20% of
the outstanding shares of FirsTier Common  Stock) will be voted for approval  of
the  Merger Agreement.  Upon consummation  of the  Merger, FirsTier shareholders
will no longer hold any interest  in FirsTier other than through their  interest
in  FBS  Common Stock  received in  the  Merger. Details  of the  background and
reasons  for  the  proposed  Merger  appear  and  are  explained  in  the  Proxy
Statement/Prospectus.  Additional information regarding FirsTier and FBS is also
set forth  in the  Proxy Statement/Prospectus  or is  incorporated by  reference
therein from other documents. I urge you to read this material carefully.

    FirsTier's  Board of Directors has received  the opinion of Morgan Stanley &
Co. Incorporated,  FirsTier's financial  advisor, that  as of  the date  of  the
opinion  the exchange  ratio in  the Merger Agreement  is fair  from a financial
point of view to the  holders of FirsTier Common Stock  (other than FBS and  its
affiliates).  A copy  of this  opinion is  included as  Appendix B  to the Proxy
Statement/Prospectus.

    It is very important to ensure that your vote is represented at the  Special
Meeting.  Please indicate your vote on the enclosed form of proxy, date and sign
it, and return it in the  enclosed envelope. EXECUTED BUT UNMARKED PROXIES  WILL
BE  VOTED FOR APPROVAL  OF THE MERGER  AGREEMENT. You are  welcome to attend the
Special Meeting and vote in person even if you have previously returned the form
of proxy. If you do  not attend the Special Meeting,  you may still revoke  your
proxy  at any time prior  to the Special Meeting  by providing written notice of
such revocation or by delivering a duly  executed proxy bearing a later date  to
Thomas  B. Fischer, Secretary of FirsTier. FAILURE TO RETURN A PROPERLY EXECUTED
PROXY CARD OR TO VOTE AT THE SPECIAL MEETING WILL HAVE THE SAME EFFECT AS A VOTE
AGAINST THE MERGER AGREEMENT.

    Please do not send  in any stock  certificates at this  time. If the  Merger
Agreement  is approved, you will be sent instructions regarding the surrender of
your existing stock certificates.

                                          Sincerely,

                                                     [SIGNATURE]

                                          David A. Rismiller
                                          CHAIRMAN, PRESIDENT AND CHIEF
                                          EXECUTIVE OFFICER
<PAGE>
                            FIRSTIER FINANCIAL, INC.
                               1700 FARNAM STREET
                           OMAHA, NEBRASKA 68102-2183
                                 (402) 348-6000
                            ------------------------
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                        TO BE HELD ON FEBRUARY 16, 1996
                             ---------------------

    NOTICE IS HEREBY GIVEN that a Special Meeting of Shareholders (the  "Special
Meeting")  of FirsTier Financial,  Inc. ("FirsTier") will be  held in the Second
Floor Board Room  of FirsTier at  1700 Farnam Street,  Omaha, Nebraska at  10:00
a.m.,  local  time, on  February 16,  1996 to  consider and  take action  on the
following:

    1.  A  proposal to approve  the Agreement of  Merger and Consolidation  (the
       "Merger  Agreement"), dated  August 6,  1995, by  and between  First Bank
       System, Inc. ("FBS")  and FirsTier, a  copy of which  is attached to  the
       accompanying  Proxy Statement/Prospectus  as Appendix A.  Pursuant to the
       Merger Agreement, among other  things, FirsTier will  be merged with  and
       into  FBS, and  each issued  and outstanding  share of  the Common Stock,
       $5.00 par  value, of  FirsTier  (the "FirsTier  Common Stock"),  will  be
       exchanged for .8829 share of the Common Stock, $1.25 par value, of FBS.

    2.   Such other matters  as may properly come  before the Special Meeting or
       any adjournment or postponement thereof.

    Any action may be  taken on any  of the foregoing  proposals at the  Special
Meeting on such date or on any date or dates to which the Special Meeting may be
properly  adjourned or  postponed. The  Board of Directors  is not  aware of any
other business to come before the Special Meeting.

    Only shareholders  of  record of  FirsTier  Common  Stock at  the  close  of
business  on January  4, 1996, are  entitled to notice  of, and to  vote at, the
Special Meeting.  Approval  of the  Merger  Agreement by  FirsTier  shareholders
requires  the affirmative vote of at least  two-thirds of the shares of FirsTier
Common Stock outstanding and entitled to vote at the Special Meeting.

    Holders of  FirsTier Common  Stock  are not  entitled to  assert  dissenters
rights with respect to their shares under the Nebraska Business Corporation Act.

    It   is  important  that  all  shareholders  of  FirsTier  Common  Stock  be
represented at the Special Meeting. We urge you to sign and return the  enclosed
proxy  as promptly as possible -- whether or  not you plan to attend the Special
Meeting. The  proxy should  be returned  in the  enclosed envelope.  FAILURE  TO
RETURN  A PROPERLY EXECUTED  PROXY CARD OR  TO VOTE AT  THE SPECIAL MEETING WILL
HAVE THE SAME EFFECT AS  A VOTE AGAINST THE MERGER  AGREEMENT. The proxy may  be
revoked  at any time prior to its exercise.  No proxy will be used if you attend
and vote at the Special Meeting in person.

                                          By Order of the Board of Directors

                                                    [SIGNATURE]

                                          Thomas B. Fischer
                                          SECRETARY

Omaha, Nebraska
Date: January 19, 1996

    YOUR VOTE  IS IMPORTANT.  HOLDERS  OF FIRSTIER  COMMON  STOCK ARE  URGED  TO
COMPLETE,  SIGN, DATE AND  MAIL THE ENCLOSED PROXY  PROMPTLY IN THE ACCOMPANYING
ENVELOPE. NO POSTAGE IS REQUIRED IF MAILED  IN THE UNITED STATES. IF YOU  ATTEND
THE SPECIAL MEETING, YOU MAY, IF YOU WISH, REVOKE YOUR PROXY AND VOTE IN PERSON.
THE  PROXY  MAY BE  REVOKED AT  ANY TIME  PRIOR  TO ITS  EXERCISE IN  THE MANNER
DESCRIBED IN THE PROXY STATEMENT/PROSPECTUS.

    PLEASE DO NOT SEND IN ANY STOCK CERTIFICATES AT THIS TIME. THE PROCEDURE FOR
THE EXCHANGE OF YOUR SHARES AFTER THE MERGER IS CONSUMMATED IS SET FORTH IN  THE
PROXY STATEMENT/PROSPECTUS.
<PAGE>
                                PROXY STATEMENT
                                       OF
                            FIRSTIER FINANCIAL, INC.
                        SPECIAL MEETING OF SHAREHOLDERS

                               FEBRUARY 16, 1996
                            ------------------------

                                   PROSPECTUS
                                       OF
                            FIRST BANK SYSTEM, INC.
                         COMMON STOCK, $1.25 PAR VALUE
                             ---------------------

    This Proxy Statement/Prospectus (the "Proxy Statement/Prospectus"), is being
furnished to holders of common stock, $5.00 par value ("FirsTier Common Stock"),
of  FirsTier Financial, Inc., a Nebraska corporation ("FirsTier"), in connection
with the solicitation of proxies by the  Board of Directors of FirsTier for  use
at  a special  meeting of  such holders  (the "Special  Meeting") to  be held on
February 16, 1996, commencing at 10:00 a.m., local time, and at any  adjournment
or  postponement thereof.  At the  Special Meeting,  holders of  FirsTier Common
Stock will be asked to consider and act upon a proposal to approve the Agreement
of Merger and Consolidation, dated August  6, 1995 (the "Merger Agreement"),  by
and  between  First  Bank  System, Inc.,  a  Delaware  corporation  ("FBS"), and
FirsTier, and the  transactions contemplated thereby,  pursuant to which,  among
other things, FirsTier would be acquired by FBS by means of a merger of FirsTier
with  and into FBS  (the "Merger"). A  copy of the  Merger Agreement is attached
hereto as Appendix A and is incorporated herein by reference.

    Pursuant to  the Merger  Agreement,  each issued  and outstanding  share  of
FirsTier  Common Stock will be  converted into .8829 share  of common stock, par
value $1.25  per  share,  of  FBS  ("FBS  Common  Stock"),  subject  to  certain
adjustments  as  described in  the  Proxy Statement/Prospectus.  The outstanding
shares of FBS Common Stock are, and it is a condition to the consummation of the
Merger that the shares of FBS Common Stock to be issued in the Merger be, listed
on the New York  Stock Exchange (the  "NYSE") under the  symbol "FBS." The  last
reported  sale price  of FBS Common  Stock on the  NYSE on January  17, 1996 was
$48.25 per share.  Based on such  last reported sale  price, the exchange  ratio
resulted in a per share purchase price for the FirsTier Common Stock of $42.60.

    This  Proxy Statement/Prospectus and the accompanying  form of proxy for the
Special Meeting are  first being mailed  to the shareholders  of FirsTier on  or
about January 19, 1996.

                                                        (CONTINUED ON NEXT PAGE)
                            ------------------------

THESE  SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
   EXCHANGE COMMISSION  OR  ANY STATE  SECURITIES  COMMISSION NOR  HAS  THE
     SECURITIES   AND  EXCHANGE   COMMISSION  OR   ANY  STATE  SECURITIES
       COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS  PROXY
           STATEMENT/PROSPECTUS.   ANY   REPRESENTATION   TO   THE
                              CONTRARY IS A CRIMINAL OFFENSE.

THE SHARES  OF FBS  COMMON STOCK  OFFERED HEREBY  ARE NOT  SAVINGS  ACCOUNTS,
   DEPOSITS OR OTHER OBLIGATIONS OF ANY BANK OR SAVINGS ASSOCIATION AND ARE
     NOT  INSURED  BY  THE FEDERAL  DEPOSIT  INSURANCE  CORPORATION, BANK
       INSURANCE FUND,  SAVINGS  ASSOCIATION INSURANCE  FUND  OR  ANY
                                   OTHER GOVERNMENTAL AGENCY.

        THE DATE OF THIS PROXY STATEMENT/PROSPECTUS IS JANUARY 19, 1996.
<PAGE>
    Because  the exchange ratio  is fixed, a  change in the  market price of FBS
Common Stock before the Merger would affect the value of the FBS Common Stock to
be received in the Merger in exchange  for the FirsTier Common Stock. THERE  CAN
BE  NO ASSURANCE  AS TO THE  MARKET PRICE  OF THE FBS  COMMON STOCK  AT ANY TIME
BEFORE THE DATE ON WHICH THE MERGER BECOMES EFFECTIVE (THE "EFFECTIVE DATE")  OR
AS  TO  THE  MARKET  PRICE OF  THE  FBS  COMMON STOCK  AT  ANY  TIME THEREAFTER.
Shareholders are urged to obtain current market quotations.

    If between the  date of the  Merger Agreement and  the Effective Date  there
shall  have been a "Significant  Decline" in the "Average  Closing Price" of FBS
Common Stock compared  to $43.0417,  FirsTier may,  at its  option, abandon  and
terminate  the  Merger Agreement  before  it takes  effect.  See "The  Merger --
Termination."

    For additional information regarding the terms of the Merger, see the Merger
Agreement attached as Appendix A hereto and "The Merger" herein.

    Morgan Stanley & Co. Incorporated has rendered its opinion dated January 19,
1996 to the Board of Directors of  FirsTier that, as of that date, the  exchange
ratio  in the Merger  Agreement was fair from  a financial point  of view to the
holders of FirsTier Common Stock (other  than FBS and its affiliates). See  "The
Merger -- Opinion of FirsTier Financial Advisor" herein.

    Consummation  of the Merger is conditioned upon, among other things, receipt
of all  required  shareholder  and  regulatory approvals.  See  "The  Merger  --
Regulatory Approvals Required."

    THE   BOARD  OF  DIRECTORS  OF  FIRSTIER  UNANIMOUSLY  RECOMMENDS  THAT  THE
SHAREHOLDERS OF FIRSTIER VOTE FOR APPROVAL OF THE MERGER AGREEMENT.

    This Proxy Statement/Prospectus  also constitutes a  prospectus of FBS  with
respect  to the shares of FBS Common  Stock issuable to shareholders of FirsTier
upon consummation of the Merger. FBS  has supplied all information contained  in
this  Proxy  Statement/Prospectus  relating  to FBS  and  its  subsidiaries, and
FirsTier   has   supplied    all   information   contained    in   this    Proxy
Statement/Prospectus relating to FirsTier and its subsidiary.

    This  Proxy  Statement/Prospectus  is  included as  part  of  a registration
statement on Form S-4 filed with the Securities and Exchange Commission by  FBS,
relating to the registration under the Securities Act of 1933, as amended, of up
to  16,950,057 shares of  FBS Common Stock  to be issued  in connection with the
Merger.

                                       2
<PAGE>
                             AVAILABLE INFORMATION

    FBS is subject to the informational requirements of the Securities  Exchange
Act  of 1934,  as amended  (the "Exchange  Act"), and,  in accordance therewith,
files reports, proxy statements  and other information  with the Securities  and
Exchange  Commission  (the "Commission").  Reports,  proxy statements  and other
information concerning FBS can be inspected  and copied at the public  reference
facilities  of the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549,
and at  the Commission's  Regional Offices  at Seven  World Trade  Center,  13th
Floor,  New  York,  New York  10048  and  Citicorp Center,  500  Madison Street,
Chicago, Illinois  60661. Copies  of such  materials can  be obtained  from  the
Public   Reference  Section  of  the  Commission  at  450  Fifth  Street,  N.W.,
Washington, D.C. 20549, at prescribed rates. Reports, proxy statements and other
information concerning FBS also can be inspected at the offices of the New  York
Stock Exchange, 20 Broad Street, New York, New York 10005.

    FBS  has  filed a  registration  statement on  Form  S-4 (together  with all
amendments  and   exhibits   thereto,  including   documents   and   information
incorporated  by reference,  the "Registration  Statement") with  the Commission
under the Securities Act of 1933, as amended (the "Securities Act"), relating to
the shares of FBS Common Stock to be issued in connection with the Merger.  This
Proxy Statement/Prospectus does not contain all the information set forth in the
Registration  Statement, certain parts  of which are  omitted in accordance with
the rules and regulations of the Commission. For further information,  reference
is hereby made to the Registration Statement. Statements contained in this Proxy
Statement/Prospectus  as to  the contents  of any  document are  not necessarily
complete, and in each instance reference  is made to such document itself,  each
such statement being qualified in all respects by such reference.

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    THIS  PROXY STATEMENT/PROSPECTUS  INCORPORATES DOCUMENTS  BY REFERENCE WHICH
ARE NOT  PRESENTED  HEREIN OR  DELIVERED  HEREWITH. DOCUMENTS  RELATING  TO  FBS
(EXCLUDING  EXHIBITS UNLESS SPECIFICALLY INCORPORATED  THEREIN) ARE AVAILABLE TO
EACH PERSON,  INCLUDING ANY  BENEFICIAL OWNER,  TO  WHOM A  COPY OF  THIS  PROXY
STATEMENT/PROSPECTUS IS DELIVERED WITHOUT CHARGE UPON WRITTEN OR ORAL REQUEST TO
KARIN E. GLASGOW, INVESTOR RELATIONS, FIRST BANK SYSTEM, INC., FIRST BANK PLACE,
601  SECOND AVENUE  SOUTH, MINNEAPOLIS,  MINNESOTA 55402-4302,  TELEPHONE NUMBER
(612) 973-2264.  DOCUMENTS  RELATING  TO  FIRSTIER  (EXCLUDING  EXHIBITS  UNLESS
SPECIFICALLY  INCORPORATED THEREIN) ARE AVAILABLE  TO EACH PERSON, INCLUDING ANY
BENEFICIAL OWNER, TO WHOM A COPY OF THIS PROXY STATEMENT/PROSPECTUS IS DELIVERED
WITHOUT CHARGE UPON  WRITTEN OR ORAL  REQUEST TO THOMAS  B. FISCHER, ESQ.,  VICE
PRESIDENT  AND GENERAL  COUNSEL, FIRSTIER  FINANCIAL, INC.,  1700 FARNAM STREET,
OMAHA, NEBRASKA 68102-2183, TELEPHONE NUMBER (402) 348-6000. IN ORDER TO  ENSURE
TIMELY  DELIVERY OF THE DOCUMENTS, ANY REQUEST  SHOULD BE RECEIVED NO LATER THAN
FEBRUARY 9, 1996.

    The following FBS documents which have been filed by FBS with the Commission
are hereby incorporated  by reference  in this  Proxy Statement/Prospectus:  (i)
Annual  Report on Form 10-K for the year ended December 31, 1994; (ii) quarterly
reports on Form 10-Q for  the quarters ended March 31,  1995, June 30, 1995  and
September  30, 1995; (iii) Current  Reports on Form 8-K  filed March 3, 1995 (as
amended by Amendment No. 1 on Form  8-K/A filed March 7, 1995), April 13,  1995,
April  25, 1995, July 6, 1995, August 18, 1995 (as amended by Amendment No. 1 on
Form 8-K/A  filed August  30,  1995 and  Amendment No.  2  on Form  8-K/A  filed
November  15, 1995),  September 11, 1995,  November 13, 1995,  November 16, 1995
(two Reports), December 13, 1995, December 15, 1995, January 9, 1996 and January
19,  1996;  (iv)  Current  Report  on  Form  8  K/A  filed  February  13,   1995
(constituting  Amendment No. 4 to the Current Report on Form 8-K filed August 5,
1994); and (v) the description  of FBS Common Stock contained  in Item 1 of  the
FBS  Registration Statement on Form 8-A dated  March 19, 1984, as amended in its
entirety by that Form 8 Amendment dated February 26, 1993 and that Form  8-A/A-2
dated  October 6,  1994, and any  amendment or  report filed for  the purpose of
updating such description filed subsequent to the date of this Proxy  Statement/
Prospectus  and prior to  the termination of the  offering described herein; and
the description of the rights to purchase preferred stock contained in Item 1 of
the FBS Registration Statement on Form  8-A dated December 21, 1988, as  amended
by   that   Form   8   Amendment   dated   June   11,   1990,   as   amended  in

                                       3
<PAGE>
its entirety by that  Form 8 Amendment  dated February 26,  1993 and as  further
amended  by that  Form 8-A/A-3  filed November  16, 1995,  and any  amendment or
report filed for the  purpose of updating such  description filed subsequent  to
the  date of this Proxy Statement/Prospectus and prior to the termination of the
offering described herein.

    The following FirsTier documents which have been filed by FirsTier with  the
Commission    are   hereby    incorporated   by   reference    in   this   Proxy
Statement/Prospectus: (i) Annual Report on Form 10-K for the year ended December
31, 1994; (ii) quarterly reports on Form  10-Q for the quarters ended March  31,
1995,  June 30, 1995 and  September 30, 1995; (iii)  Current Reports on Form 8-K
dated August  6, 1995,  May 19,  1995, January  17, 1995,  January 5,  1995  and
January  3, 1995,  and (iv)  the description of  FirsTier Common  Stock which is
contained in its Registration Statement filed  under Section 12 of the  Exchange
Act  and  any  amendment  or  report filed  for  the  purpose  of  updating such
description filed subsequent to the date of this Proxy Statement/Prospectus  and
prior to the termination of the offering described herein.

    All documents filed by FBS or FirsTier pursuant to Sections 13(a), 13(c), 14
or  15(d)  of the  Exchange Act  after the  date hereof  and before  the Special
Meeting shall be deemed to be incorporated herein by reference and to be a  part
hereof from the date of filing of such documents. Any statement contained herein
or  in a document incorporated or deemed  to be incorporated by reference herein
shall be  deemed  to  be modified  or  superseded  for purposes  of  this  Proxy
Statement/Prospectus  to  the extent  that a  statement  contained herein  or in
another  subsequently  filed  document  which  also  is  or  is  deemed  to   be
incorporated  by  reference herein  modifies or  supersedes such  statement. Any
statement so modified or superseded shall  not be deemed, except as so  modified
or superseded, to constitute a part of this Proxy Statement/Prospectus.

    NO   PERSON  IS  AUTHORIZED   TO  GIVE  ANY  INFORMATION   OR  TO  MAKE  ANY
REPRESENTATION NOT CONTAINED  IN THIS PROXY  STATEMENT/PROSPECTUS IN  CONNECTION
WITH THE SOLICITATION OF PROXIES AND OFFERING MADE HEREBY AND, IF GIVEN OR MADE,
SUCH  INFORMATION OR  REPRESENTATION SHOULD  NOT BE  RELIED UPON  AS HAVING BEEN
AUTHORIZED BY FBS OR FIRSTIER.

    THIS PROXY STATEMENT/PROSPECTUS  DOES NOT CONSTITUTE  THE SOLICITATION OF  A
PROXY,  OR  AN OFFER  TO SELL  OR A  SOLICITATION  OR AN  OFFER TO  PURCHASE ANY
SECURITIES, IN ANY  JURISDICTION IN  WHICH SUCH  SOLICITATION OR  OFFER MAY  NOT
LAWFULLY BE MADE.

    THIS PROXY STATEMENT/PROSPECTUS DOES NOT COVER ANY RESALES OF THE FBS COMMON
STOCK  OFFERED HEREBY TO  BE RECEIVED BY  SHAREHOLDERS OF FIRSTIER  DEEMED TO BE
"AFFILIATES" OF FIRSTIER OR FBS UPON  THE CONSUMMATION OF THE MERGER. NO  PERSON
IS AUTHORIZED TO MAKE USE OF THIS PROXY STATEMENT/ PROSPECTUS IN CONNECTION WITH
ANY SUCH RESALES.

    NEITHER THE DELIVERY OF THIS PROXY STATEMENT/PROSPECTUS NOR ANY DISTRIBUTION
OF  SECURITIES MADE HEREUNDER SHALL  IMPLY THAT THERE HAS  BEEN NO CHANGE IN THE
INFORMATION SET FORTH HEREIN OR IN THE AFFAIRS OF FBS OR FIRSTIER SINCE THE DATE
HEREOF OR THAT THE INFORMATION  HEREIN IS CORRECT AS  OF ANY TIME SUBSEQUENT  TO
ITS   DATE.  FBS   HAS  SUPPLIED  ALL   INFORMATION  CONTAINED   IN  THIS  PROXY
STATEMENT/PROSPECTUS RELATING  TO FBS  AND ITS  SUBSIDIARIES, AND  FIRSTIER  HAS
SUPPLIED  ALL INFORMATION CONTAINED IN  THIS PROXY STATEMENT/PROSPECTUS RELATING
TO FIRSTIER AND ITS SUBSIDIARIES.

FOR NORTH CAROLINA RESIDENTS:

    THE COMMISSIONER  OF  INSURANCE OF  THE  STATE  OF NORTH  CAROLINA  HAS  NOT
APPROVED  OR DISAPPROVED THIS OFFERING NOR  HAS THE COMMISSIONER PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROXY STATEMENT/PROSPECTUS.

                                       4
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<S>                                                                                     <C>
AVAILABLE INFORMATION.................................................................          3

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE.......................................          3

SUMMARY...............................................................................          7
  The Parties to the Merger...........................................................          7
  The Proposed Merger.................................................................          8
  Special Meeting of FirsTier Shareholders............................................          9
  Vote Required to Approve the Merger; Quorum.........................................          9
  Recommendation of the FirsTier Board of Directors...................................          9
  Interests of Certain Persons in the Merger..........................................         10
  Opinion of FirsTier Financial Advisor...............................................         10
  No Solicitation; Option Granted to FBS..............................................         11
  Regulatory Approvals Required.......................................................         11
  Conditions, Waiver and Amendment and Termination....................................         11
  Effective Date of the Merger........................................................         12
  Exchange of FirsTier Stock Certificates.............................................         12
  Certain Federal Income Tax Consequences to FirsTier Shareholders....................         12
  Resales of FBS Common Stock.........................................................         13
  Accounting Treatment................................................................         13
  No Dissenters' Rights of Appraisal..................................................         13
  Markets and Market Prices...........................................................         13
  Differences in Rights of FirsTier Shareholders......................................         14
  Expenses............................................................................         14

COMPARATIVE UNAUDITED PER SHARE DATA..................................................         15

SELECTED HISTORICAL AND UNAUDITED PRO FORMA FINANCIAL DATA............................         17

HISTORICAL SELECTED FINANCIAL DATA OF FIRST BANK SYSTEM, INC..........................         18

HISTORICAL SELECTED FINANCIAL DATA OF FIRST INTERSTATE BANCORP........................         19

HISTORICAL SELECTED FINANCIAL DATA OF FIRSTIER FINANCIAL, INC.........................         20

UNAUDITED PRO FORMA COMBINED SELECTED FINANCIAL DATA OF FIRST BANK SYSTEM, INC. AND
 FIRSTIER FINANCIAL, INC..............................................................         22

UNAUDITED PRO FORMA COMBINED SELECTED FINANCIAL DATA OF FIRST BANK SYSTEM, INC.,
 FIRSTIER FINANCIAL, INC. AND FIRST INTERSTATE BANCORP................................         23

INFORMATION CONCERNING THE SPECIAL MEETING............................................         25
  General.............................................................................         25
  Solicitation, Voting and Revocability of Proxies....................................         25

THE MERGER............................................................................         27
  Background of and Reasons for the Merger; Recommendation of FirsTier Board of
   Directors..........................................................................         27
  Opinion of FirsTier Financial Advisor...............................................         29
  Terms of the Merger; Consideration to be Received by FirsTier Shareholders..........         33
  Effective Date of the Merger........................................................         34
  Exchange of FirsTier Common Stock Certificates......................................         34
  Conditions to Consummation of the Merger............................................         35
  Regulatory Approvals Required.......................................................         37
  Waiver and Amendment................................................................         39
  Termination.........................................................................         39
</TABLE>

                                       5
<PAGE>
<TABLE>
<S>                                                                                     <C>
  No Solicitation.....................................................................         40
  Option Granted to FBS...............................................................         40
  Conduct of FirsTier Business Pending the Merger.....................................         43
  Management and Operations of FirsTier Following the Merger..........................         44
  Interests of Certain Persons in the Merger..........................................         45
  Effect on FirsTier Employee Benefit Plans and Stock Option Plans....................         47
  No Dissenters' Rights for FirsTier Shareholders.....................................         48
  Certain Federal Income Tax Consequences to FirsTier Shareholders....................         48
  Stock Exchange Listing of FBS Common Stock..........................................         49
  Resale of FBS Common Stock Received by FirsTier Shareholders........................         49
  FBS Dividend Reinvestment and Common Stock Purchase Plan............................         50
  Accounting Treatment................................................................         50
  Expenses............................................................................         50
  Material Differences in Rights of FirsTier Shareholders.............................         50

BUSINESS OF FBS.......................................................................         53
  General.............................................................................         53
  Recent Developments.................................................................         54

BUSINESS OF FIRSTIER..................................................................         55

OWNERSHIP OF FIRSTIER COMMON STOCK....................................................         56

DESCRIPTION OF FBS CAPITAL STOCK......................................................         56
  General.............................................................................         56
  Preferred Stock.....................................................................         56
  Common Stock........................................................................         58
  First Interstate Preferred Stock....................................................         61

DESCRIPTION OF FIRSTIER CAPITAL STOCK.................................................         62

LEGAL OPINIONS........................................................................         62

EXPERTS...............................................................................         62

INDEPENDENT PUBLIC ACCOUNTANTS........................................................         63

SHAREHOLDER PROPOSALS.................................................................         63

MANAGEMENT AND ADDITIONAL INFORMATION.................................................         63

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION..........................        F-1

APPENDIX A -- AGREEMENT OF MERGER AND CONSOLIDATION...................................        A-1

APPENDIX B -- OPINION OF MORGAN STANLEY & CO. INCORPORATED............................        B-1
</TABLE>

                                       6
<PAGE>
                                    SUMMARY

    THE  FOLLOWING SUMMARY  IS QUALIFIED  IN ALL  RESPECTS BY  THE MORE DETAILED
INFORMATION INCLUDED IN THIS  PROXY STATEMENT/PROSPECTUS, THE APPENDICES  HERETO
AND  THE DOCUMENTS INCORPORATED  HEREIN BY REFERENCE.  SHAREHOLDERS ARE URGED TO
READ CAREFULLY THE ENTIRE PROXY STATEMENT/PROSPECTUS, INCLUDING THE  APPENDICES.
AS USED IN THIS PROXY STATEMENT/PROSPECTUS, THE TERMS "FBS" AND "FIRSTIER" REFER
TO  FIRST BANK  SYSTEM, INC.  AND FIRSTIER  FINANCIAL, INC.,  RESPECTIVELY, AND,
WHERE THE  CONTEXT  SO  REQUIRES,  TO SUCH  CORPORATIONS  AND  THEIR  RESPECTIVE
SUBSIDIARIES.  ALL INFORMATION CONCERNING FBS INCLUDED HEREIN HAS BEEN FURNISHED
BY FBS,  AND  ALL  INFORMATION  INCLUDED HEREIN  CONCERNING  FIRSTIER  HAS  BEEN
FURNISHED BY FIRSTIER.

THE PARTIES TO THE MERGER

    FBS.    FBS is  a bank  holding  company registered  under the  Bank Holding
Company Act of 1956, as amended (the "Bank Holding Company Act"),  headquartered
in  Minneapolis, Minnesota. As of September 30, 1995, FBS owned eight subsidiary
banks, a savings  association and  other financial companies  with 350  offices,
located primarily in Minnesota, Colorado, Illinois, Montana, North Dakota, South
Dakota, Wisconsin, Iowa, Nebraska, Kansas and Wyoming. Through its subsidiaries,
FBS  provides  commercial  and agricultural  finance,  consumer  banking, trust,
capital markets, treasury  management, investment  management, data  processing,
leasing, mortgage banking and brokerage services. At September 30, 1995, FBS and
its   consolidated  subsidiaries  had  consolidated  assets  of  $33.0  billion,
consolidated deposits of $21.9 billion and shareholders' equity of $2.7 billion.

    On November 6, 1995, FBS  and First Interstate Bancorp ("First  Interstate")
announced  that  they  had  entered  into  a  definitive  agreement  (the "First
Interstate Merger  Agreement") whereby  FBS  will exchange  2.60 shares  of  FBS
Common  Stock for each share of First  Interstate common stock (and cash in lieu
of  fractional  shares)  (the  "First  Interstate  Transaction").  The  combined
institution,  which  will  use  the First  Interstate  Bancorp  name,  will have
approximately $90 billion in assets and $7 billion in shareholders' equity.  The
First  Interstate Transaction, which  will qualify as  a tax-free reorganization
and be  accounted for  as a  pooling-of-interests,  is subject  to a  number  of
conditions  including receipt of shareholder and regulatory approvals. There can
be no assurance as to whether or  when the First Interstate Transaction will  be
consummated;  however, the Merger is not contingent upon the consummation of the
First Interstate Transaction. Wells Fargo &  Co. announced on November 13,  1995
that  it intended  to commence  an unsolicited  hostile exchange  offer in which
holders of First Interstate common stock  would have the right to exchange  each
of their shares for two-thirds of a share of Wells Fargo & Co. common stock. See
"Business of FBS -- Recent Developments."

    FBS  reported fourth quarter 1995 net income of $150.7 million, or $1.12 per
fully diluted  share, compared  with  fourth quarter  1994 operating  income  of
$122.6  million, or $.90 per share. The reported net loss for the fourth quarter
of 1994 (including discontinued operations  and merger-related items) was  $35.3
million,  or $.28 per share. Net income in 1995 was $568.1 million, or $4.11 per
fully diluted share, compared  with $470.4 million, or  $3.32 per fully  diluted
share,  from continuing operations before merger-related items in 1994. Reported
net income for 1994, including discontinued operations and merger-related items,
was $305.0 million, or $2.14 per fully diluted share.

    Return on average assets and return  on average common equity in the  fourth
quarter  of 1995  were 1.80%  and 22.4%,  respectively, compared  with 1.43% and
18.0%  in  the  fourth  quarter  of  1994,  from  continuing  operations  before
merger-related  items. The net interest margin  on a taxable-equivalent basis of
4.83% in the fourth quarter of 1995 was slightly higher than the margin of 4.79%
in the fourth quarter of  1994. The efficiency ratio,  the ratio of expenses  to
revenues,  continued to improve, to  51.2% from 57.3% for  the fourth quarter of
1994, excluding merger-related charges.

    The strong  fourth  quarter 1995  results  reflected growth  in  noninterest
income,  lower  operating  expenses, and  effective  capital  management. Fourth
quarter noninterest income was $197.3 million, an increase of $24.7 million,  or
14%,  from the same quarter of 1994, excluding merger-related securities losses.
The improvement resulted primarily  from growth in credit  card and trust  fees.

                                       7
<PAGE>
Fourth  quarter 1995 noninterest  expense totaled $287.3  million, a decrease of
$24.5 million, or 8%, from the fourth quarter of 1994. Net interest income on  a
taxable-equivalent  basis was $363.7 million, a  decrease of $6.5 million, or 2%
compared  with  the  fourth  quarter   of  1994.  The  decrease  was   primarily
attributable  to lower total earning assets (as loan growth was more than offset
by sales and maturities of securities)  and higher funding costs, including  the
cost  of funding the buyback of  common stock, purchased primarily in connection
with the Merger. The  provision for credit  losses for the  quarter was up  $3.5
million, or 13%, to $31.0 million from fourth quarter 1994.

    Nonperforming  assets declined to $153.7 million  at December 31, 1995, down
$78.6 million, or 34%, from  $232.3 million at December  31, 1994. The ratio  of
the  allowance for credit losses to  nonperforming loans at quarter-end was 401%
compared with 283% at the end of 1994.

    For further information concerning FBS, see "Business of FBS" and  "Selected
Historical  and  Unaudited  Pro  Forma  Financial  Data  --  Historical Selected
Financial Data  of  First  Bank  System, Inc."  herein  and  the  FBS  documents
incorporated  by reference herein  as described under  "Incorporation of Certain
Documents by Reference." The principal executive  offices of FBS are located  at
First  Bank Place,  601 Second  Avenue South,  Minneapolis, Minnesota 55402-4302
(telephone (612) 973-1111).

    FIRSTIER.  FirsTier  is a  bank holding  company registered  under the  Bank
Holding  Company  Act, incorporated  under the  laws of  the state  of Nebraska,
headquartered in Omaha, Nebraska. FirsTier is comprised of 7 bank  subsidiaries,
serving  communities  throughout  Nebraska and  in  parts of  Iowa.  Through its
subsidiaries, FirsTier provides  a broad range  of commercial, agricultural  and
consumer  services.  At  September  30,  1995,  FirsTier  and  its  consolidated
subsidiaries had consolidated assets of approximately $3.6 billion, consolidated
deposits of $2.8 billion and shareholders' equity of $376 million.

    For further information concerning FirsTier, see "Business of FirsTier"  and
"Selected  Historical  and  Unaudited  Pro Forma  Financial  Data  -- Historical
Selected Financial Data  of FirsTier  Financial, Inc." herein  and the  FirsTier
documents  incorporated by reference herein as described under "Incorporation of
Certain Documents by Reference." The principal executive offices of FirsTier are
located at  1700  Farnam Street,  Omaha,  Nebraska 68102-2183  (telephone  (402)
348-6000).

THE PROPOSED MERGER

    The Agreement of Merger and Consolidation, dated August 6, 1995 (the "Merger
Agreement"),  by  and  between FBS  and  FirsTier,  provides for  the  merger of
FirsTier with  and  into  FBS,  with  FBS  as  the  surviving  corporation  (the
"Merger").  The Merger will become effective  upon the filing of certificates of
merger with the Secretaries of State in the States of Delaware and Nebraska (the
"Effective Date"). Upon consummation  of the Merger,  each outstanding share  of
FirsTier  Common Stock will be converted into .8829 share of FBS Common Stock on
the Effective Date with cash paid in lieu of fractional shares. Each outstanding
share of FBS capital stock will  remain outstanding and unchanged following  the
Merger.  Based  on  the  number  of shares  of  FirsTier  Common  Stock actually
outstanding on the  record date  for the  FirsTier Special  Meeting, holders  of
FirsTier  Common Stock other  than FBS would receive  an aggregate of 16,414,117
shares of FBS Common Stock upon consummation of the Merger and would hold in the
aggregate approximately 10.83% of the  FBS Common Stock outstanding  immediately
after  consummation of the Merger,  based on the number  of shares of FBS Common
Stock outstanding at January 4,  1996. Based on the  total number of shares  and
rights  to acquire  shares of FirsTier  Common Stock outstanding  on such record
date, a maximum  aggregate of  16,950,057 shares of  FBS Common  Stock could  be
issued  to persons other than FBS in  the Merger, or approximately 11.15% of the
FBS Common Stock outstanding immediately after consummation of the Merger, based
on the number of shares of FBS Common Stock outstanding at January 4, 1996.

                                       8
<PAGE>
    If between the  date of the  Merger Agreement and  the Effective Date  there
shall  have been a "Significant  Decline" in the "Average  Closing Price" of FBS
Common Stock compared  to $43.0417,  FirsTier may,  at its  option, abandon  and
terminate  the  Merger Agreement  before  it takes  effect.  See "The  Merger --
Termination."

    The Merger is subject to a number of other conditions, including the receipt
of required regulatory approvals and  approval of the shareholders of  FirsTier.
See "The Merger -- Conditions to Consummation of the Merger."

    Pursuant  to  the Merger  Agreement,  the certificate  of  incorporation and
bylaws of FBS as in effect prior  to the Effective Date will be the  certificate
of  incorporation and bylaws of FBS, as the surviving corporation in the Merger,
after the Effective Date. In addition,  the officers and directors of FBS  prior
to  the  Effective  Date will  be  the officers  and  directors of  FBS,  as the
surviving corporation in the Merger, after the Effective Date.

SPECIAL MEETING OF FIRSTIER SHAREHOLDERS

    The Special Meeting to consider and  vote upon the Merger Agreement will  be
held  in Omaha,  Nebraska, in the  Second Floor  Board Room of  FirsTier at 1700
Farnam Street, on February 16,  1996 at 10:00 a.m.  local time. Only holders  of
record of FirsTier Common Stock at the close of business on January 4, 1996 (the
"Record  Date"),  will be  entitled  to notice  of and  to  vote at  the Special
Meeting. At the close of business on the Record Date, there were outstanding and
entitled to  vote 18,715,040  shares of  FirsTier Common  Stock. Each  share  of
FirsTier  Common Stock  is entitled  to one  vote on  the Merger  Agreement. See
"Information Concerning the Special Meeting."

VOTE REQUIRED TO APPROVE THE MERGER; QUORUM

    Pursuant to  Nebraska law,  approval of  the Merger  Agreement requires  the
affirmative  vote of at least two-thirds of  all shares of FirsTier Common Stock
outstanding at the  Record Date.  A majority of  all shares  of FirsTier  Common
Stock  outstanding and entitled to vote, represented in person or by proxy, will
constitute a quorum for the Special Meeting. Approval of the Merger Agreement by
the shareholders of FBS is not required under applicable law.

    It is expected  that all of  the 3,032,654 shares  of FirsTier Common  Stock
beneficially owned by directors and executive officers, and their affiliates, of
FirsTier  at  the  Record Date  (approximately  16.20%  of the  total  number of
outstanding shares of  FirsTier Common  Stock at such  date) will  be voted  for
approval  of the Merger Agreement. As of the Record Date, FBS beneficially owned
123,900 shares of FirsTier Common Stock,  and directors and officers of FBS  and
their  affiliates beneficially owned  less than 1% of  the outstanding shares of
FirsTier Common Stock. See "Information Concerning the Special Meeting."

RECOMMENDATION OF THE FIRSTIER BOARD OF DIRECTORS

    THE BOARD OF  DIRECTORS OF  FIRSTIER RECOMMENDS THAT  SHAREHOLDERS VOTE  FOR
APPROVAL OF THE MERGER AGREEMENT.

    The  FirsTier  Board of  Directors  believes that  the  terms of  the Merger
Agreement are fair and in the  best interests of FirsTier and its  shareholders.
The  terms of  the Merger Agreement  were reached  on the basis  of arms' length
negotiations between FirsTier and FBS. In the course of reaching its decision to
approve the Merger Agreement, the FirsTier Board of Directors consulted with its
legal advisors  regarding  the legal  terms  of  the Merger  and  its  financial
advisor,  Morgan  Stanley  & Co.  Incorporated,  regarding the  fairness  from a
financial point of view to the holders of FirsTier Common Stock (other than  FBS
and  its affiliates)  of the  exchange ratio in  the Merger  Agreement. See "The
Merger -- Background and Reasons for the Merger; Recommendation of the  FirsTier
Board of Directors."

                                       9
<PAGE>
INTERESTS OF CERTAIN PERSONS IN THE MERGER

    CHANGE  OF CONTROL BONUS  POOL PLAN.   The FirsTier Change  of Control Bonus
Pool Plan provides that  a bonus pool  will be established  on the business  day
preceding  the consummation of  the Merger for payment  to certain executives of
FirsTier. The size  of the  bonus pool  is based on  increases in  the price  of
FirsTier Common Stock between a date chosen by a committee of the FirsTier Board
of  Directors and the time of the Merger. Notwithstanding the terms of the plan,
FirsTier (with  the consent  of FBS)  established the  amount of  the Change  in
Control Bonus Pool at $7 million. Certain of such payments were made by FirsTier
in 1995, were not contingent upon consummation of the Merger, and are subject to
reimbursement  by FBS in the event that  the Merger is not consummated. See "The
Merger -- Interests of Certain Persons in the Merger -- Change of Control  Bonus
Pool Plan."

    SEVERANCE  AGREEMENTS.  Aaron  C. Hilkemann, Vice  President and Director of
Financial Operations  of  FirsTier,  is  party to  a  severance  agreement  with
FirsTier  pursuant to which  he is entitled  to receive certain  benefits if his
employment is terminated at any time within one year after a "change of control"
(as defined in  such agreement  and which  would include  the Merger)  or if  he
voluntarily  resigns within  the first six  months after the  change of control.
Certain of such payments were made by FirsTier in 1995, were not contingent upon
consummation of the Merger, and are subject to reimbursement by FBS in the event
that the Merger  is not  consummated. See "The  Merger --  Interests of  Certain
Persons in the Merger -- Severance Agreement."

    EMPLOYMENT  AGREEMENTS.  Each of David A. Rismiller, Chairman, President and
Chief Executive  Officer of  FirsTier,  and Jack  R. McDonnell,  Executive  Vice
President  and Chief  Operating Officer of  FirsTier, are  parties to employment
agreements with FirsTier pursuant to which they are entitled to receive  certain
benefits if their employment is terminated under certain circumstances following
the  Merger. Certain of  such payments were  made by FirsTier  in 1995, were not
contingent upon consummation of the Merger, and are subject to reimbursement  by
FBS  in  the  event that  the  Merger is  not  consummated. See  "The  Merger --
Interests of Certain Persons in the Merger -- Employment Agreement with David A.
Rismiller" and "-- Employment Agreement with Jack R. McDonnell."

    DIRECTORS' AND  OFFICERS' INSURANCE;  LIMITATION  OF LIABILITY  OF  FIRSTIER
DIRECTORS AND OFFICERS. The Merger Agreement requires that, for a period of five
years  after the Effective Date, FBS shall  use its best efforts to provide that
portion of directors' and officers' liability insurance that serves to reimburse
officers and directors of FirsTier with respect to claims against such  officers
and  directors arising from facts or  events which occurred before the Effective
Date. Such insurance shall  be of at  least the same  coverage and amounts,  and
contain  terms and conditions  no less advantageous,  as that coverage currently
provided by  FirsTier,  subject to  certain  requirements and  limitations.  The
Merger  Agreement  also  requires FBS,  for  a  period of  six  years  after the
Effective  Date,  to  indemnify  present  and  former  officers,  directors  and
employees  of FirsTier (including  its subsidiaries) against  certain losses and
other expenses in connection with claims which arise out of such persons' having
served in such capacities and pertain  to matters or facts arising, existing  or
occurring   before  the  Effective  Date  (including,  without  limitation,  the
transactions contemplated by the Merger Agreement).

    The foregoing interests of members of management or shareholders of FirsTier
and its  affiliates in  the Merger  may  mean that  such persons  have  personal
interests  in  the  Merger  which  may not  be  identical  to  the  interests of
nonaffiliated shareholders. See "The Merger  -- Interests of Certain Persons  in
the Merger."

OPINION OF FIRSTIER FINANCIAL ADVISOR

    FirsTier's financial advisor, Morgan Stanley & Co. Incorporated has rendered
its  opinion dated January 19, 1996 to  the Board of Directors of FirsTier that,
as of that  date, the exchange  ratio in the  Merger Agreement was  fair from  a
financial  point of view to the holders of FirsTier Common Stock (other than FBS
and its affiliates).  A copy of  the Morgan Stanley  & Co. Incorporated  opinion
dated  January 19, 1996 is  attached as Appendix B hereto  and should be read in
its entirety with respect to the assumptions made, other matters considered  and
limitations on the reviews undertaken.

                                       10
<PAGE>
NO SOLICITATION; OPTION GRANTED TO FBS

    The  Merger Agreement  provides that  FirsTier (including  its subsidiaries)
will not,  and  will  cause  its  officers,  directors,  employees,  agents  and
affiliates,  not  to, directly  or indirectly,  solicit, authorize,  initiate or
encourage submission of,  any proposal,  offer, tender offer  or exchange  offer
from  any person or entity (including officers  or employees of FirsTier or such
subsidiaries)  relating  to  any  liquidation,  dissolution,   recapitalization,
merger, consolidation or acquisition or purchase of all or a material portion of
the  assets or deposits  of, or any equity  interest in, FirsTier  or any of its
subsidiaries, or,  unless FirsTier  shall have  determined, after  receipt of  a
written  opinion  of counsel  to  FirsTier (a  copy  of which  opinion  shall be
delivered to FBS), that the Board of Directors of FirsTier has a fiduciary  duty
to  do  so,  (i)  participate  in any  negotiations  in  connection  with  or in
furtherance of any of the foregoing or (ii) permit any person other than FBS and
its representatives to have any access to  the facilities of, or furnish to  any
person  other than FBS  and its representatives  any non-public information with
respect to,  FirsTier  or any  of  its subsidiaries  in  connection with  or  in
furtherance  of  any  of  the  foregoing.  See  "The  Merger  --  Limitation  on
Negotiations."

    Following the execution  of the  Merger Agreement, FirsTier  granted FBS  an
option  (the "Option") to purchase authorized but unissued or treasury shares of
FirsTier Common Stock in a number approximately equal to 19.9% of the number  of
shares  of FirsTier Common Stock outstanding  immediately before exercise of the
Option. The  exercise  price of  the  Option is  $37.00  per share,  subject  to
adjustment  under specified circumstances.  The Option is  exercisable only upon
the occurrence of  specified events relating  generally to the  making by  third
parties  of offers to acquire  FirsTier and the acquisition  by third parties of
specified percentages  of  FirsTier  Common  Stock. To  the  best  knowledge  of
FirsTier  and FBS, no event giving rise to  the right to exercise the Option has
occurred as of the date of  this Proxy Statement/Prospectus. See "The Merger  --
Option Granted to FBS."

    The  foregoing  provisions may  have  the effect  of  discouraging competing
offers to acquire or merge with FirsTier.

REGULATORY APPROVALS REQUIRED

    The Merger is subject to the prior approval of the Board of Governors of the
Federal Reserve  System (the  "Federal Reserve  Board") under  the Bank  Holding
Company  Act and,  with respect  to limited aspects  of the  Merger, the Wyoming
Commissioner of Banking and the Iowa Superintendent of Banking. Additionally,  a
notice  filing with  the Arizona  Department of  Insurance is  required. Federal
Reserve  Board  approval  was  obtained  on  December  18,  1995,  the   Wyoming
Commissioner of Banking Commission approval was obtained on December 8, 1995 and
the  Iowa Superintendent of  Banking approval was obtained  on January 17, 1996.
The Arizona notice was filed on December 26, 1995 and the Arizona Department  of
Insurance  stated that it had no objection to the Merger by letter dated January
9, 1996. See "The Merger -- Regulatory Approvals Required."

CONDITIONS, WAIVER AND AMENDMENT AND TERMINATION

    The respective obligations of FBS and FirsTier to consummate the Merger  are
subject  to the satisfaction of certain conditions, including, among others, (i)
the receipt of  all required regulatory  approvals with respect  to the  Merger,
(ii)  the approval  of the  Merger Agreement by  the requisite  vote of FirsTier
shareholders and (iii)  certain other  conditions customary  in transactions  of
this  kind. A failure  of any of such  conditions to be  satisfied would, if not
waived, prevent consummation of the Merger.

    At any time before the Effective Date, any party to the Merger Agreement may
(i) extend the  time for performance  of any  obligations or other  acts of  any
other  party under the Merger Agreement or (ii) waive compliance with any of the
agreements of the other  parties or with any  conditions of its own  obligations
contained  in  the  Merger  Agreement,  to  the  extent  that  such obligations,
agreements and  conditions  are  intended  for  such  party's  own  benefit.  In
addition,  the Merger Agreement may be amended by written instrument approved by
the parties and signed on  behalf of each of  the parties. The Merger  Agreement
may  be  amended  without the  approval  of FirsTier  shareholders,  except that

                                       11
<PAGE>
no such amendment  will be made  following approval of  the Merger Agreement  by
FirsTier  shareholders if  such amendment  changes the  number of  shares of FBS
Common Stock for which the FirsTier Common Stock is to be exchanged or otherwise
materially adversely affects the rights of such shareholders. See "The Merger --
Waiver and Amendment."

    The Merger Agreement may be terminated at any time before the Effective Date
(i) by mutual consent of FBS and FirsTier; (ii) by either FBS or FirsTier if any
of the  conditions to  such  party's obligation  to consummate  the  transaction
contemplated in the Merger Agreement have become impossible to satisfy; (iii) by
either  FBS  or FirsTier  if the  Merger is  not duly  approved by  the FirsTier
shareholders; (iv) by either FBS or FirsTier if the Effective Date is not on  or
before  March 31, 1996 (unless the failure to consummate the Merger by such date
shall be due to the action or failure  to act of the party seeking to  terminate
the  Merger Agreement in breach of  such party's obligations thereunder); (v) by
FBS if,  after the  date of  the Merger  Agreement, the  Board of  Directors  of
FirsTier  shall have  withdrawn, modified or  changed its  recommendation of the
Merger Agreement  or  the Merger;  (vi)  by FBS  if  there shall  have  occurred
specified  events relating generally to the making by third parties of offers to
acquire FirsTier and the acquisition  by third parties of specified  percentages
of  FirsTier Common  Stock; and  (vii) by  FirsTier if  there shall  have been a
"Significant Decline"  in  the  "Average  Closing Price"  of  FBS  Common  Stock
compared  to the  price of  $43.0417. See  "The Merger  -- Termination"  and "--
Conditions to Consummation of the Merger."

EFFECTIVE DATE OF THE MERGER

    The Merger will become effective upon  the filing of certificates of  merger
relating  thereto with the  Secretaries of State  in the States  of Delaware and
Nebraska. The Merger Agreement provides that the parties to the Merger Agreement
will cause such certificates  of merger to  be so filed  as soon as  practicable
after  receipt of all necessary regulatory  approvals, provided that each of the
conditions to  consummation of  the Merger  has been  satisfied or  waived.  The
Merger  cannot become  effective until  FirsTier shareholders  have approved the
Merger Agreement and  all required  regulatory approvals and  actions have  been
obtained  and taken.  The Merger  Agreement may be  terminated by  either FBS or
FirsTier if  the Merger  has not  become  effective by  March 31,  1996  (unless
failure  to consummate  the Merger by  such date shall  be due to  the action or
failure to act of the party seeking to terminate the Merger Agreement in  breach
of  such party's obligations thereunder). Accordingly, there can be no assurance
as to whether  or when  the Merger  will become  effective. See  "The Merger  --
Effective Date of the Merger," "-- Conditions to Consummation of the Merger" and
"-- Regulatory Approvals Required."

EXCHANGE OF FIRSTIER STOCK CERTIFICATES

    Following the Merger, First Chicago Trust Company of New York (the "Exchange
Agent")  will send  a notice  and transmittal  form, with  instructions, to each
holder of  FirsTier  Common Stock  of  record at  the  time the  Merger  becomes
effective  advising such holder  of the effectiveness  of the Merger  and of the
procedure for surrendering  to the  Exchange Agent  their certificates  formerly
evidencing FirsTier Common Stock in exchange for new certificates evidencing FBS
Common  Stock. FIRSTIER SHAREHOLDERS SHOULD NOT SEND IN THEIR STOCK CERTIFICATES
UNTIL THEY RECEIVE THE NOTICE AND TRANSMITTAL FORM FROM THE EXCHANGE AGENT.  See
"The Merger -- Surrender of FirsTier Common Stock Certificates."

CERTAIN FEDERAL INCOME TAX CONSEQUENCES TO FIRSTIER SHAREHOLDERS

    The  obligations  of both  FirsTier  and FBS  to  consummate the  Merger are
conditioned on, among  other things,  the receipt of  an opinion  of counsel  of
Wachtell,  Lipton, Rosen  & Katz,  counsel to FirsTier,  to the  effect that for
federal income tax purposes  (i) the Merger will  qualify as a  "reorganization"
under  Section 368(a)  of the  Internal Revenue  Code of  1986, as  amended (the
"Code"), (ii) no  gain or loss  will be recognized  by any FirsTier  shareholder
(except  in connection with the  receipt of cash) upon  the exchange of FirsTier
Common Stock for  FBS Common Stock  in the Merger,  (iii) the basis  of the  FBS
Common  Stock received by  a FirsTier shareholder  who exchanges FirsTier Common
Stock for FBS Common Stock will be the same as the basis of the FirsTier  Common
Stock  surrendered in exchange therefor (subject  to any adjustments required as
the result of the receipt of cash in lieu of

                                       12
<PAGE>
a fractional share  of FBS Common  Stock), (iv)  the holding period  of the  FBS
Common  Stock received by a FirsTier shareholder receiving FBS Common Stock will
include the  period  during  which  the FirsTier  Common  Stock  surrendered  in
exchange  therefor was  held (provided  that the  FirsTier Common  Stock of such
FirsTier shareholder was held as a capital asset as of the Effective Date),  and
(v)  cash  received by  a FirsTier  shareholder  in lieu  of a  fractional share
interest of  FBS Common  Stock will  be treated  as having  been received  as  a
distribution  in full payment  in exchange for the  fractional share interest of
FBS Common Stock which such FirsTier shareholder would otherwise be entitled  to
receive,  and  will generally  qualify  as capital  gain  or loss  (assuming the
FirsTier Common Stock was a capital  asset in such FirsTier shareholder's  hands
at the Effective Date). Wachtell, Lipton, Rosen & Katz has delivered to FirsTier
an  opinion of  counsel to  the foregoing  effect, which  opinion is  based upon
various  representations  and  is  subject  to  a  number  of  assumptions   and
conditions.  EACH FIRSTIER SHAREHOLDER  IS URGED TO  CONSULT HIS OR  HER OWN TAX
ADVISOR CONCERNING THE FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER, AS WELL AS
ANY APPLICABLE STATE, LOCAL, FOREIGN OR OTHER TAX CONSEQUENCES, BASED UPON  SUCH
SHAREHOLDER'S OWN PARTICULAR FACTS AND CIRCUMSTANCES. See "The Merger -- Certain
Federal Income Tax Consequences to FirsTier Shareholders."

RESALES OF FBS COMMON STOCK

    The  shares of  FBS Common Stock  issuable to shareholders  of FirsTier upon
consummation of the Merger  may be traded freely  by those shareholders who  are
not "affiliates" of FirsTier or FBS. FirsTier has agreed in the Merger Agreement
to  use its best efforts to  obtain signed representations from each shareholder
of FirsTier who  may reasonably be  deemed an "affiliate"  of FirsTier (as  such
term  is used  in Rule  145 under the  Securities Act)  to the  effect that such
person will not dispose of shares issued to him pursuant to the Merger except in
compliance with Rule 145 under the Securities Act, in a transaction that, in the
opinion of counsel reasonably satisfactory to FBS, is otherwise exempt from  the
registration requirements under the Securities Act, or in an offering registered
under the Securities Act. See "The Merger -- Resale of FBS Common Stock Received
by FirsTier Shareholders."

ACCOUNTING TREATMENT

    FBS  intends  to account  for  the Merger  using  the purchase  method under
generally  accepted  accounting  principles.  See  "The  Merger  --   Accounting
Treatment."

NO DISSENTERS RIGHTS OF APPRAISAL

    Under  Nebraska law,  holders of  stock in  a bank  holding company  such as
FirsTier are not entitled to employ the procedure whereby shareholders may elect
to have the "fair value" of their shares (determined in accordance with Nebraska
law) judicially appraised and paid to them. Accordingly, all holders of FirsTier
Common Stock will be required to exchange their shares for shares of FBS  Common
Stock. See "The Merger -- No Dissenters Rights for FirsTier Shareholders."

MARKETS AND MARKET PRICES

    FBS  Common Stock is listed on the  NYSE under the symbol "FBS" and FirsTier
Common Stock is  listed on the  Nasdaq National Market  System under the  symbol
"FRST." The following table sets forth the closing price per share of FBS Common
Stock,  the closing price per share of FirsTier Common Stock and the "equivalent
per share price" (as defined below) of FirsTier Common Stock as of (i) August 4,
1995, the  last  trading  day  before FBS  announced  execution  of  the  Merger
Agreement,  and  (ii) January  17,  1996. The  "equivalent  per share  price" of
FirsTier Common Stock as of such dates equals the closing price per share of FBS
Common Stock on such dates multiplied times .8829, which

                                       13
<PAGE>
is the number of shares  of FBS Common Stock to  be issued in exchange for  each
share  of FirsTier  Common Stock  pursuant to  the Merger  Agreement, subject to
certain adjustments. See "The Merger -- Terms of the Merger; Consideration to be
Received by FirsTier Shareholders."

<TABLE>
<CAPTION>
    MARKET PRICE            FBS           FIRSTIER       EQUIVALENT
    PER SHARE AT:       COMMON STOCK    COMMON STOCK   PER SHARE PRICE
- ---------------------  --------------  --------------  ---------------
<S>                    <C>             <C>             <C>
August 4, 1995           $    43.00      $    39.00       $   37.96
January 17, 1996         $    48.25      $    42.50       $   42.60
</TABLE>

FBS and FirsTier believe the FirsTier Common Stock presently trades on the basis
of the value of the FBS Common Stock expected to be issued in exchange for  such
FirsTier  Common Stock in the Merger, discounted for the time value of money and
for the uncertainties associated with  any transaction. Apart from the  publicly
disclosed  information  concerning FBS  which  is included  and  incorporated by
reference in this  Proxy Statement/Prospectus,  FBS does not  know what  factors
account for changes in the market price of its stock.

    FirsTier  shareholders are advised  to obtain current  market quotations for
FBS Common Stock and FirsTier Common Stock. No assurance can be given as to  the
market  prices of FBS Common  Stock or FirsTier Common  Stock at any time before
the Merger becomes effective or  as to the market price  of FBS Common Stock  at
any time thereafter. Because the exchange ratio of FBS Common Stock for FirsTier
Common  Stock  is  fixed at  .8829  and will  not  increase or  decrease  due to
fluctuations in  the  market price  of  either  stock, it  will  not  compensate
FirsTier  shareholders for certain  decreases in the market  price of FBS Common
Stock which could occur before the Merger becomes effective. As a result, in the
event the market  price of  FBS Common  Stock decreases,  the value  of the  FBS
Common  Stock to be received in the Merger in exchange for FirsTier Common Stock
would decrease.  In the  event the  market  price of  FBS Common  Stock  instead
increases,  the value of  the FBS Common Stock  to be received  in the Merger in
exchange for FirsTier Common Stock would increase. See "-- The Proposed  Merger"
above  and "The Merger --  Terms of the Merger;  Consideration to be Received by
FirsTier Shareholders."

    If between the  date of the  Merger Agreement and  the Effective Date  there
shall  have been a "Significant  Decline" in the "Average  Closing Price" of FBS
Common Stock compared  to the price  of $43.0417, FirsTier  may, at its  option,
abandon  and terminate  the Merger  Agreement before  it takes  effect. See "The
Merger -- Termination."

    Following the Merger, FirsTier Common Stock  will no longer exist and, as  a
result, will no longer be listed on the Nasdaq National Market System.

DIFFERENCES IN RIGHTS OF FIRSTIER SHAREHOLDERS

    Upon  consummation  of the  Merger, holders  of  FirsTier Common  Stock will
become holders of FBS Common Stock.  As a result, their rights as  shareholders,
which  are now  governed by  Nebraska corporate  law and  FirsTier's Articles of
Incorporation and Bylaws, will be governed  by Delaware corporate law and  FBS's
Certificate  of Incorporation and Bylaws. Because of certain differences between
Nebraska and Delaware  corporate law  and between the  provisions of  FirsTier's
Articles  of Incorporation and Bylaws and FBS's Certificate of Incorporation and
Bylaws, the current  rights of FirsTier  shareholders will change  significantly
after  the  Merger. For  a discussion  of the  material differences  between the
rights of shareholders of  FirsTier and the rights  of shareholders of FBS,  see
"The Merger -- Certain Differences in Rights of FirsTier Shareholders."

EXPENSES

    The  Merger  Agreement  provides that  all  costs and  expenses  incurred in
connection with such agreement and  the transactions contemplated thereby  shall
be  paid by  the party  incurring such  costs and  expenses. See  "The Merger --
Expenses."

                                       14
<PAGE>
                      COMPARATIVE UNAUDITED PER SHARE DATA

    The following table presents selected  comparative unaudited per share  data
for  FBS on  a historical and  pro forma combined  basis, and for  FirsTier on a
historical and pro forma equivalent basis, giving effect to the Merger using the
purchase method of accounting, and to the First Interstate Transaction using the
pooling-of-interests method of  accounting. The information  presented below  is
derived  from the consolidated historical  financial statements of FBS, FirsTier
and First Interstate, including the related notes thereto, and the unaudited pro
forma combined financial information, including the notes thereto,  incorporated
by  reference into, or appearing  elsewhere in, this Proxy Statement/Prospectus.
This information should  be read  in conjunction  with such  historical and  pro
forma  financial statements and the related notes thereto. See "Incorporation of
Certain Documents  by Reference"  and "Unaudited  Pro Forma  Condensed  Combined
Financial Information."

    The  per share data  included within are  presented for comparative purposes
only and  are  not  necessarily  indicative of  the  future  combined  financial
position, the results of the future operations or the actual results or combined
financial  position of the combined entity that would have been achieved had the
Merger and  the  First Interstate  Transaction  been consummated  prior  to  the
periods indicated.

<TABLE>
<CAPTION>
                                                        FBS COMMON STOCK                   FIRSTIER COMMON STOCK
                                              ------------------------------------  ------------------------------------
                                                            PRO FORMA COMBINED                   PRO FORMA EQUIVALENT
                                                         -------------------------             -------------------------
                                                                    FBS, FIRSTIER                         FBS, FIRSTIER
                                                                         AND                                   AND
                                                          FBS AND       FIRST                   FBS AND       FIRST
                                              HISTORICAL FIRSTIER     INTERSTATE    HISTORICAL FIRSTIER     INTERSTATE
                                              ---------  ---------  --------------  ---------  ---------  --------------
<S>                                           <C>        <C>        <C>             <C>        <C>        <C>
BOOK VALUE (1):
  September 30, 1995........................  $   20.33  $   22.59    $    19.30    $   20.30  $   19.94    $    17.04
  December 31, 1994.........................      18.63      20.06         17.72        18.53      17.71         15.64

DIVIDENDS DECLARED (2):
  Nine Months Ended:
    September 30, 1995......................     1.0875     1.0875        1.0875         0.86     0.9602        0.9602
  Year Ended:
    December 31, 1994.......................       1.16       1.16          1.16         1.04       1.02          1.02

INCOME FROM CONTINUING OPERATIONS (3):
  Nine Months Ended:
    September 30, 1995......................       3.05       3.00          3.13         2.28       2.65          2.76
  Year Ended:
    December 31, 1994.......................       2.21       2.24          2.90         2.69       1.98          2.56
</TABLE>

                           (Notes on following page)

                                       15
<PAGE>
                 NOTES TO COMPARATIVE UNAUDITED PER SHARE DATA

(1)  The pro forma FBS and FirsTier combined book values per share of FBS Common
    Stock are  based upon  the pro  forma  total equity  for FBS  and  FirsTier,
    divided by the total pro forma common shares of the combined entity assuming
    conversion  of  the FirsTier  common  stock at  the  exchange ratio,  net of
    related repurchases of existing  FBS Common Stock equal  to one-half of  the
    FBS  Common Stock to be issued in  connection with the Merger. The pro forma
    FBS, FirsTier and  First Interstate combined  book values per  share of  FBS
    Common  Stock are  based upon  the pro  forma total  common equity  for FBS,
    FirsTier and First Interstate, divided by the total pro forma common  shares
    of  the combined entity assuming conversion of FirsTier and First Interstate
    common stock at the respective  exchange ratios, net of related  repurchases
    of existing FBS Common Stock equal to one-half of the FBS Common Stock to be
    issued  in connection with the Merger.  The pro forma equivalent book values
    per share of FirsTier Common Stock represent the pro forma combined  amounts
    per  share of FBS  Common Stock multiplied  by the Exchange  Ratio. See "The
    Merger -- Terms  of the  Merger; Consideration  to be  Received by  FirsTier
    Shareholders."

(2)  The  pro  forma  combined  dividends  declared  assume  no  changes  in the
    historical dividends declared per share of  FBS Common Stock. The pro  forma
    equivalent  dividends per share of FirsTier  Common Stock represent the cash
    dividends declared  on one  share  of FBS  Common  Stock multiplied  by  the
    Exchange  Ratio. See "The Merger -- Terms of the Merger; Consideration to be
    Received by FirsTier Shareholders."

(3) The pro forma  FBS and FirsTier combined  income from continuing  operations
    per  share of FBS Common Stock are  based upon the pro forma combined income
    from continuing operations for FBS and FirsTier, divided by the average  pro
    forma  common shares of the combined entity. The pro forma FBS, FirsTier and
    First Interstate combined income from continuing operations per share of FBS
    Common Stock are based  upon the pro forma  combined income from  continuing
    operations  for FBS, FirsTier  and First Interstate,  divided by the average
    pro forma common  shares of the  combined entity. The  pro forma  equivalent
    income  from  continuing  operations  per  share  of  FirsTier  Common Stock
    represents the  pro forma  combined income  per share  of FBS  Common  Stock
    multiplied  by the Exchange Ratio.  See "The Merger --  Terms of the Merger;
    Consideration to be Received by FirsTier Shareholders."

    After the Merger FBS  expects to achieve operating  cost savings by  various
means including reductions in staff and consolidation of certain data processing
and  other  back  office operations.  No  adjustment  has been  included  in the
unaudited pro forma combined financial statements for the anticipated  operating
cost savings.

    Financial  results for  FBS for  1994 include  merger-related items  with an
after-tax effect of $156.9 million ($1.15 per share) associated with the  merger
with  Metropolitan  Financial Corporation.  Financial  results for  FBS  in 1993
include merger-related charges with an  after-tax effect of $50.0 million  ($.37
per  share) associated with  the merger with  Colorado National Bankshares, Inc.
Included in  FBS results  of  operations in  1992 are  after-tax  merger-related
charges  of  $81.8 million  ($.66  per share)  associated  with the  merger with
Western Capital Investment Corporation and Bank Shares Incorporated.

                                       16
<PAGE>
           SELECTED HISTORICAL AND UNAUDITED PRO FORMA FINANCIAL DATA

    The following  tables set  forth  certain selected  historical  consolidated
financial  information  for  FBS,  FirsTier and  First  Interstate,  and certain
unaudited pro forma combined financial  information giving effect to the  Merger
using  the  purchase method  of accounting  (included in  the nine  months ended
September 30, 1995 and the  year ended December 31,  1994 only) and the  pending
First   Interstate   Transaction  using   the  pooling-of-interests   method  of
accounting. The pro forma combined  balance sheet information for September  30,
1995  also includes Midwestern Services, Inc. and Southwest Holdings, Inc., both
of which were acquired  by FBS on  November 1, 1995, as  well as the  intangible
assets   related  to  the  pending  purchase  by  FBS  of  the  corporate  trust
relationships and  accounts of  BankAmerica  Corporation (the  "Corporate  Trust
Acquisition").  The  pro forma  combined income  statement information  does not
include Midwestern  Services, Inc.  and Southwest  Holdings, Inc.,  or the  fees
attributable  to the  Corporate Trust Acquisition,  as they  are immaterial. The
historical selected financial data for the years ended December 31, 1990 through
1994  are  derived  from  audited  consolidated  financial  statements  of  FBS,
FirstTier  and First Interstate. The historical  selected financial data for the
nine months ended  September 30, 1994  and 1995 are  derived from the  unaudited
historical  financial  statements  of  FBS, FirsTier  and  First  Interstate and
reflect, in the  respective opinions of  management of FBS,  FirsTier and  First
Interstate,  all adjustments  (consisting only of  normal recurring adjustments)
necessary for a fair presentation of such data. This information should be  read
in  conjunction with  the consolidated  historical financial  statements of FBS,
FirsTier and First Interstate,  and the related  notes thereto, incorporated  by
reference  in  this  Proxy  Statement/Prospectus, and  in  conjunction  with the
unaudited pro  forma condensed  combined  financial information,  including  the
notes  thereto,  appearing  elsewhere in  this  Proxy  Statement/Prospectus. See
"Incorporation of  Certain  Documents by  Reference"  and "Unaudited  Pro  Forma
Condensed Combined Financial Information."

    The   unaudited  pro  forma  combined   financial  data  are  presented  for
informational purposes only  and are  not necessarily indicative  of the  future
combined  financial position or results of the future operations of the combined
entity or the actual results or combined financial position that would have been
achieved had  the  Merger  and  the  other  transactions  described  above  been
consummated  on  these dates  or prior  to the  periods presented.  In addition,
results for  the  nine months  ended  September  30, 1995  are  not  necessarily
indicative of results expected for the entire year.

                                       17
<PAGE>
                     HISTORICAL SELECTED FINANCIAL DATA OF
                            FIRST BANK SYSTEM, INC.

<TABLE>
<CAPTION>
                                              NINE MONTHS ENDED
                                                SEPTEMBER 30,                        YEAR ENDED DECEMBER 31,
                                            ----------------------  ----------------------------------------------------------
                                               1995        1994      1994 (4)    1993 (5)    1992 (6)      1991        1990
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
                                                                 (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                                         <C>         <C>         <C>         <C>         <C>         <C>         <C>
CONSOLIDATED INCOME STATEMENT DATA:
  Interest income.........................  $ 1,903.0   $ 1,668.2   $ 2,288.1   $ 2,134.5   $ 2,106.1   $ 2,369.0   $ 2,745.3
  Interest expense........................      823.1       615.4       868.7       796.3       953.1     1,354.2     1,844.2
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
    Net interest income...................    1,079.9     1,052.8     1,419.4     1,338.2     1,153.0     1,014.8       901.1
  Provision for credit losses.............       84.0        79.6       123.6       133.1       191.7       210.2       219.7
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Net interest income after provision for
   credit losses..........................      995.9       973.2     1,295.8     1,205.1       961.3       804.6       681.4
  Noninterest income......................      585.8       497.5       558.9       618.9       613.7       557.0       472.1
  Noninterest expense.....................      918.6       913.7     1,349.4     1,264.7     1,246.3     1,067.9     1,063.0
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Income from continuing operations before
   income taxes and cumulative effect of
   accounting changes.....................      663.1       557.0       505.3       559.3       328.7       293.7        90.5
  Applicable income taxes.................      245.7       210.1       191.8       198.6       115.7        30.3         6.5
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Income from continuing operations before
   cumulative effect of accounting
   changes................................      417.4       346.9       313.5       360.7       213.0       263.4        84.0
  (Loss) income from discontinued
   operations (1).........................      --           (6.6)       (8.5)        2.5         2.7         1.1         0.6
  Cumulative effect of accounting
   changes................................      --          --          --          --          233.2       --            1.0
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Net income..............................  $   417.4   $   340.3   $   305.0   $   363.2   $   448.9   $   264.5   $    85.6
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Average common and common equivalent
   shares.................................      135.0       136.0       136.3       134.6       124.7       117.3       106.1
PER COMMON SHARE:
  Income from continuing operations before
   cumulative effect of accounting
   changes................................  $    3.05   $    2.47   $    2.21   $    2.46   $    1.46   $    2.00   $    0.53
  Net income..............................       3.05        2.43        2.15        2.48        3.35        2.01        0.55
  Dividends paid..........................     1.0875        0.87        1.16        1.00        0.88        0.82        0.82
  Common shareholders' equity.............      20.33       19.77       18.63       18.91       17.89       14.67       13.28
CONSOLIDATED BALANCE SHEET DATA AT PERIOD
 END:
  Assets..................................  $  32,958   $  34,364   $  34,128   $  33,370   $  32,758   $  28,508   $  29,339
  Securities..............................      3,302       3,990       5,185       5,030       6,092       4,744       5,061
  Loans...................................     25,877      24,360      24,556      23,497      20,692      18,766      18,870
  Deposits................................     21,895      24,299      24,256      26,386      26,395      22,969      22,772
  Long-term debt..........................      3,127       2,730       2,981       2,070       1,151       1,360       2,085
  Shareholders' equity....................      2,736       2,800       2,612       2,744       2,745       2,131       1,826
SELECTED FINANCIAL DATA AT PERIOD END:
  Common shareholders' equity to assets...        8.0%        7.8%        7.3%        7.4%        7.2%        5.9%        5.1%
  Total shareholders' equity to assets....        8.3         8.1         7.7         8.2         8.4         7.5         6.2
  Tier 1 capital ratio (2)................        7.4         8.2         7.3         9.4         9.8         8.5         6.8
  Total capital ratio (2).................       12.3        12.2        11.4        13.4        13.0        11.3         9.7
  Allowance for credit losses.............  $     469   $     478   $     475   $     466   $     484   $     453   $     484
    Percentage of loans...................       1.81%       1.96%       1.93%       1.98%       2.34%       2.42%       2.57%
  Nonperforming assets (3)................  $     167   $     245   $     232   $     341   $     511   $     658   $     737
    Percentage of total assets............       0.51%       0.71%       0.68%       1.02%       1.56%       2.31%       2.51%
SELECTED FINANCIAL DATA FOR THE PERIOD:
  Return on average assets from continuing
   operations before cumulative effect of
   accounting changes.....................       1.70%       1.39%       0.93%       1.12%       0.74%       0.95%       0.28%
  Return on average assets................       1.70        1.36        0.91        1.13        1.56        0.96        0.29
  Return on average common equity from
   continuing operations before cumulative
   effect of accounting changes...........       20.9        17.3        11.6        13.8         8.7        14.7         4.1
  Return on average common equity.........       20.9        17.0        11.2        13.9        20.0        14.8         4.2
  Net interest margin (taxable-equivalent
   basis).................................       4.94        4.72        4.74        4.69        4.54        4.15        3.46
  Net interest margin without taxable-
   equivalent increments..................       4.89        4.67        4.69        4.63        4.45        4.01        3.29
</TABLE>

                See notes to historical selected financial data

                                       18
<PAGE>
                     HISTORICAL SELECTED FINANCIAL DATA OF
                            FIRST INTERSTATE BANCORP

<TABLE>
<CAPTION>
                                              NINE MONTHS ENDED
                                                SEPTEMBER 30,                        YEAR ENDED DECEMBER 31,
                                            ----------------------  ----------------------------------------------------------
                                             1995 (7)      1994      1994 (7)    1993 (8)      1992        1991      1990 (9)
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
                                                                 (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                                         <C>         <C>         <C>         <C>         <C>         <C>         <C>
CONSOLIDATED INCOME STATEMENT DATA:
  Interest income.........................  $ 2,789.1   $ 2,329.8   $ 3,192.0   $ 2,944.2   $ 3,189.7   $ 3,935.3   $ 4,820.8
  Interest expense........................      884.5       619.8       865.5       872.1     1,175.1     1,843.6     2,517.6
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
    Net interest income...................    1,904.6     1,710.0     2,326.5     2,072.1     2,014.6     2,091.7     2,303.2
  Provision for credit losses.............      --          --          --          112.6       314.3       810.2       499.4
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Net interest income after provision for
   credit losses..........................    1,904.6     1,710.0     2,326.5     1,959.5     1,700.3     1,281.5     1,803.8
  Noninterest income......................      823.3       792.0     1,054.3       954.2       912.1     1,184.4     1,203.5
  Noninterest expense.....................    1,638.3     1,659.6     2,197.8     2,032.4     2,209.2     2,732.2     2,562.3
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Income (loss) before income taxes,
   extraordinary item and cumulative
   effect of accounting changes...........    1,089.6       842.4     1,183.0       881.3       403.2      (266.3)      445.0
  Applicable income taxes.................      419.9       320.1       449.5       319.9       120.9        21.8         6.4
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Income (loss) before extraordinary item
   and cumulative effect of accounting
   changes................................      669.7       522.3       733.5       561.4       282.3      (288.1)      438.6
  Extraordinary item......................      --          --          --          (24.8)      --          --          --
  Cumulative effect of accounting
   changes................................      --          --          --          200.1       --          --           30.1
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Net income (loss).......................  $   669.7   $   522.3   $   733.5   $   736.7   $   282.3   $  (288.1)  $   468.7
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
                                            ----------  ----------  ----------  ----------  ----------  ----------  ----------
  Average common and common equivalent
   shares.................................       77.2        81.7        80.4        77.0        69.1        62.5        58.9
PER COMMON SHARE:
  Income (loss) before extraordinary item
   and cumulative effect of accounting
   changes................................  $    8.36   $    6.09   $    8.71   $    6.68   $    3.23   $   (5.24)  $    6.79
  Extraordinary item......................      --          --          --          (0.32)      --          --          --
  Cumulative effect of accounting
   changes................................      --          --          --           2.60       --          --           0.51
  Net income (loss).......................       8.36        6.09        8.71        8.96        3.23       (5.24)       7.30
  Dividends paid..........................       2.30        2.00        2.75        1.60        1.20        1.80        3.00
  Common shareholders' equity.............      47.95       41.24       41.59       41.36       35.04       32.57       39.78
CONSOLIDATED BALANCE SHEET DATA AT PERIOD
 END:
  Assets..................................  $  55,067   $  54,207   $  55,813   $  51,461   $  50,863   $  48,922   $  51,356
  Securities..............................      9,432      14,744      13,851      16,542      13,913       8,496       6,975
  Loans...................................     35,967      30,331      33,222      25,988      24,201      28,182      33,007
  Deposits................................     48,236      48,055      48,427      44,701      43,675      41,433      43,141
  Long-term debt..........................      1,368       1,261       1,388       1,533       2,702       3,108       3,178
  Shareholders' equity....................      3,981       3,550       3,436       3,548       3,251       2,639       2,868
SELECTED FINANCIAL DATA AT PERIOD END:
  Common shareholders' equity to assets...        6.6%        5.9%        5.5%        6.2%        5.2%        4.2%        4.8%
  Total shareholders' equity to assets....        7.2         6.5         6.2         6.9         6.4         5.4         5.6
  Tier 1 capital ratio (2)................        7.5         8.6         7.2         9.9         9.4         6.3         5.6
  Total capital ratio (2).................       10.5        11.5        10.2        13.1        13.9        10.6         9.4
  Allowance for credit losses.............  $     847   $     952   $     934   $   1,001   $   1,068   $   1,273   $   1,011
    Percentage of loans...................       2.35%       3.14%       2.81%       3.85%       4.41%       4.52%       3.06%
  Nonperforming assets (3)................  $     206   $     291   $     258   $     309   $     751   $   1,588   $   1,749
    Percentage of total assets............       0.37%       0.54%       0.46%       0.60%       1.48%       3.25%       3.41%
SELECTED FINANCIAL DATA FOR THE PERIOD:
  Return on average assets before
   extraordinary item and cumulative
   effect of accounting changes...........       1.61%       1.33%       1.38%       1.14%       0.57%      (0.59)%      0.81%
  Return on average assets................       1.61        1.33        1.38        1.49        0.57       (0.59)       0.86
  Return on average common equity before
   extraordinary item and cumulative
   effect of accounting changes...........       25.4        20.1        21.6        17.3         9.6      (14.0)        18.2
  Return on average common equity.........       25.4        20.1        21.6        23.2         9.6      (14.0)        19.6
  Net interest margin (taxable-equivalent
   basis).................................       5.41        5.09        5.14        4.91        4.89        5.04        5.06
  Net interest margin without taxable-
   equivalent increments..................       5.37        5.05        5.10        4.87        4.84        4.98        4.95
</TABLE>

                See notes to historical selected financial data

                                       19
<PAGE>
                     HISTORICAL SELECTED FINANCIAL DATA OF
                            FIRSTIER FINANCIAL, INC.

<TABLE>
<CAPTION>
                                           NINE MONTHS ENDED
                                             SEPTEMBER 30,                          YEAR ENDED DECEMBER 31,
                                         ----------------------  -------------------------------------------------------------
                                            1995        1994        1994        1993      1992 (10)    1991 (10)    1990 (10)
                                         ----------  ----------  ----------  ----------  -----------  -----------  -----------
                                                                (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                                      <C>         <C>         <C>         <C>         <C>          <C>          <C>
CONSOLIDATED INCOME STATEMENT DATA:
  Interest income......................  $   195.0   $   171.0   $   231.5   $   223.8    $   225.1    $   251.6    $   248.1
  Interest expense.....................       94.5        69.6        97.1        92.0        103.4        142.8        155.1
                                         ----------  ----------  ----------  ----------  -----------  -----------  -----------
    Net interest income................      100.5       101.4       134.4       131.8        121.7        108.8         93.0
  Provision for credit losses..........        0.8        (1.2)       (0.2)        5.4          9.7         10.7         27.1
                                         ----------  ----------  ----------  ----------  -----------  -----------  -----------
  Net interest income after provision
   for credit losses...................       99.7       102.6       134.6       126.4        112.0         98.1         65.9
  Noninterest income...................       42.4        41.7        52.0        59.0         56.7         54.5         46.1
  Noninterest expense..................       84.0        87.7       118.1       115.4        109.1        107.0        110.2
                                         ----------  ----------  ----------  ----------  -----------  -----------  -----------
  Income before income taxes...........       58.1        56.6        68.5        70.0         59.6         45.6          1.8
  Applicable income taxes..............       15.5        15.2        17.6        18.8         16.2         11.0         (0.8)
                                         ----------  ----------  ----------  ----------  -----------  -----------  -----------
  Net income...........................  $    42.6   $    41.4   $    50.9   $    51.2    $    43.4    $    34.6    $     2.6
                                         ----------  ----------  ----------  ----------  -----------  -----------  -----------
                                         ----------  ----------  ----------  ----------  -----------  -----------  -----------
  Average common and common equivalent
   shares..............................       18.7        19.0        18.8        19.1         19.0         19.0         17.2
PER COMMON SHARE:
  Net income...........................  $    2.28   $    2.18   $    2.69   $    2.68    $    2.30    $    1.85    $    0.15
  Dividends paid.......................       0.86        0.78        1.04        0.66         0.47         0.42         0.40
  Common shareholders' equity..........      20.30       18.43       18.53       17.30        15.09        13.22        11.97

CONSOLIDATED BALANCE SHEET DATA AT
 PERIOD END:
  Assets...............................  $   3,585   $   3,517   $   3,540   $   3,400    $   3,302    $   3,113    $   3,076
  Securities...........................      1,002         990         938       1,035          961          803          676
  Loans................................      2,191       2,056       2,149       1,953        1,875        1,785        1,801
  Deposits.............................      2,776       2,624       2,815       2,721        2,776        2,552        2,583
  Long-term debt.......................        164         148         154          38           23           47           35
  Shareholders' equity.................        376         343         342         326          284          248          206
SELECTED FINANCIAL DATA AT PERIOD END:
  Common shareholders' equity to
   assets..............................       10.5%        9.7%        9.7%        9.6%         8.6%         8.0%         6.7%
  Total shareholders' equity to
   assets..............................       10.5         9.7         9.7         9.6          8.6          8.0          6.7
  Tier 1 capital ratio (2).............       15.0        14.2        13.5        14.0         13.3         11.5          9.8
  Total capital ratio (2)..............       16.3        15.5        14.8        15.2         14.6         12.8         11.3
  Allowance for credit losses..........  $      52   $      53   $      53   $      54    $      50    $      46    $      43
    Percentage of loans................       2.38%       2.59%       2.48%       2.78%        2.69%        2.71%        2.39%
  Non-performing assets (3)............  $      12   $      15   $      14   $      18    $      28    $      31    $      29
    Percentage of total assets.........       0.34%       0.41%       0.40%       0.53%        0.85%        1.00%        0.94%
SELECTED FINANCIAL DATA FOR THE PERIOD:
  Return on average assets.............       1.59%       1.62%       1.47%       1.54%        1.40%        1.14%        0.09%
  Return on average common equity......       15.9        16.4        14.9        16.6         16.4         14.8          1.2
  Net interest margin (taxable-
   equivalent basis)...................       4.46        4.68        4.61        4.73         4.71         4.25         4.02
  Net interest margin without taxable-
   equivalent increments...............       4.11        4.35        4.26        4.63         4.35         4.01         3.75
</TABLE>

                See notes to historical selected financial data

                                       20
<PAGE>
                  NOTES TO HISTORICAL SELECTED FINANCIAL DATA

 (1)  FBS acquired Edina Realty,  Inc., a real estate  brokerage, as part of its
    merger with Metropolitan Financial Corporation on January 24, 1995.  Because
    of  regulatory restrictions on non-banking  activities, FBS has entered into
    an agreement  to sell  Edina Realty,  Inc. Accordingly,  its operations  are
    accounted for as discontinued operations.

 (2)  Capital ratios are computed based on  1992 Federal Reserve Board rules and
    regulations, as in effect in 1992.

 (3) Includes nonaccrual and restructured loans, other nonperforming assets  and
    other real estate owned.

 (4)  Financial results  for FBS for  1994 include merger-related  items with an
    after tax effect  of $156.9 million  ($1.15 per share)  associated with  the
    merger with Metropolitan Financial Corporation.

 (5)  The FBS results of operations for the year ended December 31, 1993 include
    merger-related charges of $50.0  million ($.37 per  share), on an  after-tax
    basis,  associated with  FBS's acquisition of  Colorado National Bankshares,
    Inc.

 (6) The FBS results of operations for the year ended December 31, 1992  include
    merger-related  charges of $81.8  million ($.66 per  share), on an after-tax
    basis, associated  with  FBS's  acquisition of  Western  Capital  Investment
    Corporation and Bank Shares Incorporated. The results of operations for that
    year  also  include the  effect of  adopting  two new  accounting standards:
    Statement of Financial  Accounting Standards No.  ("SFAS") 109,  "Accounting
    for  Income Taxes," and  SFAS 106 "Employers'  Accounting for Postretirement
    Benefits Other than Pensions."  The cumulative effect  of adopting SFAS  109
    was  an increase of $264.8  million in net income.  The cumulative effect of
    adopting SFAS 106 was a decrease of $31.6 million in net income.

 (7) The  First Interstate  results  of operations  for  the nine  months  ended
    September  30, 1995 and the year  ended December 31, 1994, include after-tax
    charges of  $9.5 million  and $87.6  million, respectively,  related to  the
    adoption  of a restructuring plan to  improve efficiency and better position
    First Interstate for the introduction of full interstate banking.

 (8) First Interstate's 1993 financial results include an extraordinary loss  of
    $24.8  million related to the early extinguishment of debt. Also included in
    1993 is the effect of adopting SFAS 109 and SFAS 106. The cumulative  effect
    of  adopting SFAS 109 was  an increase of $305.0  million in net income. The
    cumulative effect of adopting SFAS 106  was a decrease of $104.9 million  in
    net income.

 (9)  First Interstate's 1990  financial results include  the effect of adopting
    SFAS 96, "Accounting for  Income Taxes." The  cumulative effect of  adopting
    SFAS 96 was an increase of $30.1 million in net income.

(10) Historical Selected Financial Data for FirsTier for the year ended December
    31,  1990  has  not  been  restated  to  reflect  FirsTier's  acquisition of
    Cornerstone Bank  Group,  Inc. ("CBG").  Tier  1 capital  ratios  and  total
    capital  ratios have not been restated to reflect the acquisition of CBG for
    the years ended December 31, 1992 and 1991. In addition, net interest margin
    (taxable-equivalent basis) and net interest margin without
    taxable-equivalent  increments  have  not  been  restated  to  reflect   the
    acquisition  of CBG for the year ended  December 31, 1991. The effect of the
    restatement would not be material.

                                       21
<PAGE>
              UNAUDITED PRO FORMA COMBINED SELECTED FINANCIAL DATA
                         OF FIRST BANK SYSTEM, INC. AND
                          FIRSTIER FINANCIAL, INC. (1)

<TABLE>
<CAPTION>
                                                                                                    YEAR ENDED
                                                                               NINE MONTHS ENDED   DECEMBER 31,
                                                                              SEPTEMBER 30, 1995       1994
                                                                              -------------------  ------------
                                                                               (IN MILLIONS, EXCEPT PER SHARE
                                                                                          AMOUNTS)
<S>                                                                           <C>                  <C>
CONSOLIDATED INCOME STATEMENT DATA:
  Interest income...........................................................     $   2,098.0        $ 2,519.6
  Interest expense..........................................................           932.6            982.6
                                                                                    --------       ------------
    Net interest income.....................................................         1,165.4          1,537.0
  Provision for credit losses...............................................            84.8            123.4
                                                                                    --------       ------------
  Net interest income after provision for credit losses.....................         1,080.6          1,413.6
  Noninterest income........................................................           628.2            610.9
  Noninterest expense.......................................................         1,015.3          1,484.4
                                                                                    --------       ------------
  Income from continuing operations before income taxes.....................           693.5            540.1
  Applicable income taxes...................................................           255.6            203.0
                                                                                    --------       ------------
  Income from continuing operations.........................................     $     437.9        $   337.1
                                                                                    --------       ------------
                                                                                    --------       ------------
  Average common and common equivalent shares...............................           143.9            144.6
PER COMMON SHARE:
  Income from continuing operations.........................................     $      3.00        $    2.24
  Dividends paid............................................................          1.0875             1.16
  Common shareholders' equity...............................................           22.59            20.06
CONSOLIDATED BALANCE SHEET DATA AT PERIOD END:
  Assets....................................................................     $    37,485        $  37,668
  Securities................................................................           4,404            6,123
  Loans.....................................................................          28,334           26,705
  Deposits..................................................................          25,401           27,071
  Long-term debt............................................................           3,301            3,135
  Shareholders' equity......................................................           3,297            2,954
SELECTED FINANCIAL DATA AT PERIOD END:
  Common shareholders' equity to assets.....................................             8.5%             7.6%
  Total shareholders' equity to assets......................................             8.8              7.8
  Tier 1 capital ratio......................................................             6.7              6.7
  Total capital ratio.......................................................            11.3             10.7
  Allowance for credit losses...............................................     $       524        $     528
    Percentage of loans.....................................................             1.85%            1.98 %
  Nonperforming assets (2)..................................................  $           179      $       246
    Percentage of total assets..............................................             0.48    %        0.65 %
SELECTED FINANCIAL DATA FOR THE PERIOD ENDED:
  Return on average assets from continuing operations.......................             1.59    %        0.90 %
  Return on average common equity from continuing operations................             19.3             11.0
  Net interest margin (taxable-equivalent basis)............................             4.83             4.68
  Net interest margin without taxable-equivalent increments.................             4.75             4.61
</TABLE>

       See notes to unaudited pro forma combined selected financial data

                                       22
<PAGE>
              UNAUDITED PRO FORMA COMBINED SELECTED FINANCIAL DATA
                          OF FIRST BANK SYSTEM, INC.,
                          FIRSTIER FINANCIAL, INC. AND
                          FIRST INTERSTATE BANCORP (1)

<TABLE>
<CAPTION>
                                                                   NINE MONTHS ENDED        YEAR ENDED DECEMBER 31,
                                                                     SEPTEMBER 30,     ----------------------------------
                                                                         1995             1994        1993        1992
                                                                  -------------------  ----------  ----------  ----------
                                                                          (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                                                               <C>                  <C>         <C>         <C>
CONSOLIDATED INCOME STATEMENT DATA:
  Interest income...............................................      $ 4,887.1        $ 5,711.6   $ 5,078.7   $ 5,295.8
  Interest expense..............................................        1,817.1          1,848.1     1,668.4     2,128.2
                                                                       --------        ----------  ----------  ----------
    Net interest income.........................................        3,070.0          3,863.5     3,410.3     3,167.6
  Provision for credit losses...................................           84.8            123.4       245.7       506.0
                                                                       --------        ----------  ----------  ----------
  Net interest income after provision for credit losses.........        2,985.2          3,740.1     3,164.6     2,661.6
  Noninterest income............................................        1,451.5          1,665.2     1,573.1     1,525.8
  Noninterest expense...........................................        2,653.6          3,682.2     3,297.1     3,455.5
                                                                       --------        ----------  ----------  ----------
  Income from continuing operations before income taxes,
   extraordinary item and cumulative effect of accounting
   changes......................................................        1,783.1          1,723.1     1,440.6       731.9
  Applicable income taxes.......................................          675.5            652.5       518.5       236.6
                                                                       --------        ----------  ----------  ----------
  Income from continuing operations before extraordinary item
   and cumulative effect of accounting changes..................      $ 1,107.6        $ 1,070.6   $   922.1   $   495.3
                                                                       --------        ----------  ----------  ----------
                                                                       --------        ----------  ----------  ----------
  Average common and common equivalent shares...................          344.5            353.7       343.1       312.7

PER COMMON SHARE:
  Income from continuing operations before extraordinary item
   and cumulative effect of accounting changes..................      $    3.13        $    2.90   $    2.47   $    1.29
  Dividends paid................................................         1.0875             1.16        1.00        0.88
  Common shareholders' equity...................................          19.30            17.72       17.09       15.25

CONSOLIDATED BALANCE SHEET DATA AT PERIOD END:
  Assets........................................................      $  88,692        $  93,853   $  84,831   $  83,621
  Securities....................................................          9,836           19,974      21,572      20,005
  Loans.........................................................         64,301           59,927      49,485      44,893
  Deposits......................................................         73,637           75,498      71,087      70,070
  Long-term debt................................................          4,669            4,523       3,603       3,853
  Shareholders' equity..........................................          6,983            6,405       6,292       5,996

SELECTED FINANCIAL DATA AT PERIOD END:
  Common shareholders' equity to assets.........................            7.4%             6.3%        6.7%        6.0%
  Total shareholders' equity to assets..........................            7.9              6.8         7.4         7.2
  Tier 1 capital ratio..........................................            6.8              7.0         9.7         9.6
  Total capital ratio...........................................           10.6             10.4        13.2        13.5
  Allowance for credit losses...................................      $   1,371        $   1,462   $   1,467   $   1,552
    Percentage of loans.........................................           2.13%            2.44%       2.96%       3.46%
  Nonperforming assets (2)......................................      $     385        $     504   $     650   $   1,262
    Percentage of total assets..................................           0.43%            0.54%       0.77%       1.51%

SELECTED FINANCIAL DATA FOR THE PERIOD:
  Return on average assets from continuing operations before
   extraordianary item and cumulative effect of accounting
   changes......................................................           1.60%            1.19%       1.13%       0.64%
  Return on average common equity from continuing operations
   before extraordinary item and cumulative effect of accounting
   changes......................................................           22.6             16.5        15.7         9.2
  Net interest margin (taxable-equivalent basis)................           5.18             4.95        4.82        4.76
  Net interest margin without taxable-equivalent increments.....           5.12             4.89        4.78        4.70
</TABLE>

       See notes to unaudited pro forma combined selected financial data

                                       23
<PAGE>
         NOTES TO UNAUDITED PRO FORMA COMBINED SELECTED FINANCIAL DATA

(1) The  Merger will  be  accounted for  by FBS  under  the purchase  method  of
    accounting  in accordance with APB No.  16 and, accordingly, this method has
    been applied  in  the  unaudited  pro  forma  condensed  combined  financial
    statements.  Under this  method of  accounting, the  purchase price  will be
    allocated  to  assets  acquired  and  liabilities  assumed  based  on  their
    estimated fair values at the closing of the transaction. The historical cost
    of  FirsTier's  assets  and  liabilities  approximates  fair  value,  making
    mark-to-market adjustments immaterial. Accordingly,  the historical cost  of
    FirsTier's  assets and  liabilities have  been combined  with the historical
    consolidated balance sheet of FBS. Based on current estimates, the amount of
    intangible assets relating to  FirsTier is $338  million, calculated as  the
    purchase  price  of $714  million less  FirsTier  September 30,  1995 common
    equity of $376 million. Certain  adjustments, primarily to accrue for  costs
    related  to  the Merger  expected  to be  incurred  within one  year  of the
    closing, are not material and have  not been reflected in the unaudited  pro
    forma condensed combined financial statements.

   Amortization  expense  relating  to  the  Merger  has  been  included  in the
    unaudited pro forma combined income statement data for the nine months ended
    September 30,  1995  and the  year  ended December  31,  1994.  Amortization
    expense was calculated based on the intangible asset balance of $338 million
    using  the straight-line method over an  average estimated period of benefit
    of 20 years.

   The First  Interstate Transaction  will be  accounted for  by FBS  under  the
    pooling-of-interests method of accounting in accordance with APB No. 16 and,
    accordingly,  this  method  has  been applied  in  the  unaudited  pro forma
    condensed combined financial  statements. Under this  method of  accounting,
    the  recorded assets, liabilities, shareholders' equity, income and expenses
    of FBS and First  Interstate are combined and  recorded at their  historical
    amounts.

   FBS  expects to  achieve operating  cost savings  by various  means including
    reductions in staff and consolidation  of certain data processing and  other
    back  office  operations.  The operating  cost  savings are  expected  to be
    achieved in various amounts at various  times during the year subsequent  to
    the  closing  and not  ratably over,  or at  the beginning  or end  of, such
    periods. No  adjustment  has  been  included  in  the  unaudited  pro  forma
    condensed  combined financial statements for  the anticipated operating cost
    savings.

   Pro forma  adjustments  related  to  the  Merger  and  the  First  Interstate
    Transaction  represent  management's best  estimate  based on  all available
    information at  this  time.  These  adjustments  may  change  as  additional
    information  becomes available. See "Unaudited  Pro Forma Condensed Combined
    Financial Information" for additional details on these adjustments.

(2) Nonperforming  assets  include  nonaccrual  and  restructured  loans,  other
    nonperforming assets and other real estate owned.

                                       24
<PAGE>
                   INFORMATION CONCERNING THE SPECIAL MEETING

GENERAL

    This  Proxy Statement/Prospectus is  being furnished to  holders of FirsTier
Common Stock as part  of the solicitation  of proxies by  the FirsTier Board  of
Directors  for use at the Special Meeting to be held on February 16, 1996 and at
any adjournment or postponement thereof.  This Proxy Statement/ Prospectus,  and
the  accompanying Proxy Card, are being first mailed to FirsTier shareholders on
or about January 19, 1996.

    The purpose of the Special Meeting is to consider and vote upon the proposal
to approve the Merger Agreement,  dated August 6, 1995,  by and between FBS  and
FirsTier,  which  sets  forth  the  terms and  conditions  of  the  Merger. Upon
consummation of the Merger, each outstanding share of FirsTier Common Stock will
be converted into .8829  share of FBS  Common Stock, with cash  paid in lieu  of
fractional  shares.  Based on  the  number of  shares  of FirsTier  Common Stock
actually outstanding  on  the record  date  for the  FirsTier  Special  Meeting,
holders  of FirsTier Common Stock  other than FBS would  receive an aggregate of
16,414,117 shares of FBS Common Stock upon consummation of the Merger and  would
hold  in the aggregate approximately 10.83%  of the FBS Common Stock outstanding
immediately after consummation of the Merger,  based on the number of shares  of
FBS  Common Stock outstanding at  January 4, 1996. Based  on the total number of
shares and rights to acquire shares of FirsTier Common Stock outstanding on such
record date, a maximum aggregate of 16,950,057 shares of FBS Common Stock  could
be  issued to persons other  than FBS in the  Merger, or approximately 11.15% of
the FBS Common Stock outstanding  immediately after consummation of the  Merger,
based  on the  number of shares  of FBS  Common Stock outstanding  at January 4,
1996. The Merger is also subject to a number of other conditions, including  the
receipt  of required regulatory approvals and approval of FirsTier shareholders.
See "The Merger -- Conditions to Consummation of the Merger."

SOLICITATION, VOTING AND REVOCABILITY OF PROXIES

    The Board  of Directors  of FirsTier  has  fixed the  close of  business  on
January  4, 1996 (the "Record Date") as the record date for the determination of
the shareholders of FirsTier entitled  to notice of and  to vote at the  Special
Meeting.  Accordingly, only holders of record of shares of FirsTier Common Stock
at the close of business  on such date will be  entitled to vote at the  Special
Meeting, with each share entitling its owner to one vote on all matters properly
presented  at the Special Meeting. On  the Record Date, there were approximately
2,002 holders of record of the  18,715,040 shares of FirsTier Common Stock  then
outstanding.  The presence, in person or by proxy, of at least a majority of the
total number of outstanding shares of FirsTier Common Stock entitled to vote  at
the  Special Meeting is necessary to constitute a quorum at the Special Meeting.
Under Nebraska law,  the affirmative vote  of at least  two-thirds of the  total
number  of outstanding shares of  FirsTier Common Stock entitled  to vote at the
Special Meeting is  required to  approve the  Merger Agreement.  If an  executed
Proxy  Card is  returned and  the shareholder  has affirmatively  abstained from
voting on any matter,  the shares represented by  such proxy will be  considered
present  at the  Special Meeting  for purposes of  determining a  quorum and for
purposes of calculating the vote,  but will not be  considered to have voted  in
favor  as to  such matter.  If an executed  Proxy Card  is returned  by a broker
holding shares in  street name  which indicates that  the broker  does not  have
discretionary  authority as to  certain shares to  vote on one  or more matters,
such  shares  will  be  considered  present  at  the  meeting  for  purposes  of
determining  a  quorum, but  will not  be  considered to  be represented  at the
meeting for  purposes of  calculating  the vote  with  respect to  such  matter.
FAILURE  TO RETURN  A PROPERLY  EXECUTED PROXY  CARD OR  TO VOTE  AT THE SPECIAL
MEETING WILL HAVE THE SAME EFFECT AS A VOTE AGAINST THE MERGER AGREEMENT.

    It is expected  that all of  the 3,032,654 shares  of FirsTier Common  Stock
(excluding  shares subject to stock options) beneficially owned by directors and
executive officers of FirsTier and their  affiliates at the Record Date  (16.20%
of the total number of outstanding shares of FirsTier Common Stock at such date)
will  be voted  for approval  and adoption  of the  Merger Agreement.  As of the
Record Date,  FBS beneficially  owned 123,900  shares of  FirsTier Common  Stock
(excluding shares issuable to FBS

                                       25
<PAGE>
under  certain conditions  as described under  "The Merger --  Option Granted to
FBS"), and directors and executive officers of FBS beneficially owned less  than
1% of the outstanding shares of FirsTier Common Stock.

    If the accompanying Proxy Card is properly executed and returned to FirsTier
in  time to be voted at the Special Meeting, the shares represented thereby will
be voted  in  accordance with  the  instructions marked  thereon.  EXECUTED  BUT
UNMARKED  PROXIES  WILL  BE  VOTED  FOR  APPROVAL  AND  ADOPTION  OF  THE MERGER
AGREEMENT. The Board of Directors of FirsTier does not know of any matters other
than those described  in the  notice of  the Special  Meeting that  are to  come
before the Special Meeting. If any other matters are properly brought before the
Special  Meeting, one or more  of the persons named in  the Proxy Card will vote
the shares represented by  such proxy upon such  matters as determined in  their
best judgment.

    THE   BOARD  OF  DIRECTORS  OF  FIRSTIER  UNANIMOUSLY  RECOMMENDS  THAT  THE
SHAREHOLDERS OF FIRSTIER VOTE FOR APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.

    The presence of a shareholder at the Special Meeting will not  automatically
revoke  such shareholder's proxy. Any proxy  given pursuant to this solicitation
may be  revoked  by the  person  giving it  by  giving written  notice  of  such
revocation  to the  Secretary of  FirsTier at  any time  before it  is voted, by
delivering to FirsTier or any other person a duly executed, later-dated proxy or
by attending the Special  Meeting and voting in  person. All written notices  of
revocation and other communications with respect to revocation of proxies should
be  addressed to: Thomas  B. Fischer, Secretary,  FirsTier Financial, Inc., 1700
Farnam Street, Omaha, Nebraska 68102-2183.

    The cost of  soliciting proxies  for the Special  Meeting will  be borne  by
FirsTier.  In addition to use of the  mails, proxies may be solicited personally
or by telephone, telegraph or facsimile by directors, officers and employees  of
FirsTier,  who will not  be specially compensated  for such activities. FirsTier
will also request persons, firms and companies holding shares in their names  or
in  the name of their nominees, which  are beneficially owned by others, to send
proxy materials to and obtain proxies from such beneficial owners. FirsTier will
reimburse  such  persons  for  their   reasonable  expenses  incurred  in   that
connection.  FirsTier  has  retained  Morrow  &  Co.,  Inc.  to  assist  in  the
solicitation of  proxies  at  a  cost of  approximately  $7,500  plus  customary
expenses.

    SHAREHOLDERS   OF  FIRSTIER  ARE  INSTRUCTED  NOT   TO  SEND  IN  THE  STOCK
CERTIFICATES REPRESENTING  THEIR  SHARES OF  FIRSTIER  COMMON STOCK  WITH  THEIR
PROXY.  IF  THE  MERGER  IS  APPROVED,  SHAREHOLDERS  OF  FIRSTIER  WILL RECEIVE
INSTRUCTIONS REGARDING THE EXCHANGE OF THEIR STOCK CERTIFICATES. SEE "THE MERGER
- -- EXCHANGE OF FIRSTIER COMMON STOCK CERTIFICATES."

                                       26
<PAGE>
                                   THE MERGER

    THIS SECTION OF THE PROXY STATEMENT/PROSPECTUS DESCRIBES CERTAIN ASPECTS  OF
THE  PROPOSED MERGER. TO THE EXTENT THAT IT RELATES TO THE MERGER AGREEMENT, THE
FOLLOWING DESCRIPTION DOES NOT  PURPORT TO BE COMPLETE  AND IS QUALIFIED IN  ITS
ENTIRETY  BY REFERENCE  TO THE  MERGER AGREEMENT,  A COPY  OF WHICH  IS ATTACHED
HERETO AS APPENDIX A AND IS  INCORPORATED HEREIN BY REFERENCE. ALL  SHAREHOLDERS
ARE  URGED TO READ THE MERGER AGREEMENT AND THE OTHER APPENDICES HERETO IN THEIR
ENTIRETY.

BACKGROUND OF AND REASONS FOR THE MERGER; RECOMMENDATION OF FIRSTIER BOARD OF
DIRECTORS

    BACKGROUND OF THE MERGER.  In late 1992, the Board of Directors of  FirsTier
(the "FirsTier Board"), with the assistance of Morgan Stanley & Co. Incorporated
("Morgan  Stanley"),  began considering  strategic business  alternatives. Based
upon consultations with Morgan Stanley and the FirsTier Board's consideration of
various alternatives  (including  remaining  independent),  the  FirsTier  Board
determined to pursue a possible strategic alliance with BANC ONE CORPORATION. On
April  19,  1993,  FirsTier  and  BANC ONE  CORPORATION  entered  into  a merger
agreement (the  "BANC  ONE  Agreement");  however,  pursuant  to  the  BANC  ONE
Agreement,  on February  14, 1994, the  FirsTier Board decided  to terminate the
BANC ONE  Agreement on  the  basis of  the  decline in  value  of the  BANC  ONE
CORPORATION stock.

    Following  the termination  of the  BANC ONE  Agreement, the  FirsTier Board
determined that FirsTier  would return to  its normal course  of business  while
remaining  open to  the possibility  of a  strategic alliance  with another bank
holding company if  such a  transaction could  be pursued  on a  basis that  was
advantageous  to FirsTier  and its shareholders.  With the  assistance of Morgan
Stanley, FirsTier  from time  to time  engaged in  discussions with  other  bank
holding companies, including FBS, concerning a possible business combination. No
such  discussions  resulted in  negotiations  concerning a  possible transaction
until June  1995  when FirsTier  and  FBS began  to  engage in  discussions  and
negotiations concerning a possible transaction on the terms set forth herein.

    On  June 19,  1995, the FirsTier  Board authorized  discussions concerning a
potential business combination with  FBS. Managements of  the two companies  and
their  respective  financial and  legal advisors  discussed  the structure  of a
possible transaction and issues relating to the management and operations of the
surviving company following a business combination between FirsTier and FBS.  On
July  31, 1995, the FirsTier  Board was presented with  a progress report on the
discussions. Over the next week, the parties negotiated the Merger Agreement and
the Stock Option Agreement (as defined below, see "-- Option Granted to FBS").

    REASONS OF FIRSTIER FOR THE MERGER.   On August 4, 1995, the FirsTier  Board
convened to consider in detail the Merger and other transactions contemplated by
the  Merger  Agreement.  At  the meeting,  members  of  FirsTier  management and
FirsTier's outside financial and legal  advisors reviewed the proposed terms  of
the Merger Agreement and the transactions contemplated thereby with the FirsTier
Board.  On August  6, 1995,  the FirsTier Board  convened again  to consider the
Merger, at which meeting Morgan Stanley  delivered its oral opinion that, as  of
that  date, the exchange ratio in the Merger Agreement was fair from a financial
point of view to the  holders of FirsTier Common Stock  (other than FBS and  its
affiliates).  See "-- Opinion of FirsTier Financial Advisor." After deliberating
with respect to the Merger and the other transactions contemplated by the Merger
Agreement, considering, among other things, the matters set forth below and  the
opinion  of Morgan  Stanley referred  to above,  the FirsTier  Board unanimously
approved the Merger Agreement and the transactions contemplated thereby.

    THE FIRSTIER BOARD  BELIEVES THAT  THE MERGER  IS FAIR  TO AND  IN THE  BEST
INTERESTS  OF FIRSTIER AND ITS SHAREHOLDERS.  THE FIRSTIER BOARD RECOMMENDS THAT
SHAREHOLDERS VOTE FOR THE APPROVAL OF THE MERGER AGREEMENT.

    In connection with its approval of the Merger Agreement and the Stock Option
Agreement, the  FirsTier  Board  considered  and approved  the  adoption  of  an
amendment  dated as of August 6, 1995,  to the Rights Agreement between FirsTier
and   State    Street   Bank    and   Trust    Company,   as    rights    agent,

                                       27
<PAGE>
dated  as of December 19,  1994, as amended (the  "Rights Agreement"), to permit
the execution of  the Merger Agreement  and the Stock  Option Agreement and  the
consummation  of  the Merger  without  triggering the  exercisability  under the
Rights Agreement of the rights issued thereunder. Additionally, for purposes  of
the  Nebraska Revised Statutes Section 21-2452 and otherwise, the FirsTier Board
approved the  execution  and delivery  of,  and performance  under,  the  Merger
Agreement  and the Stock  Option Agreement, and  exempted such transactions from
the application of provisions  of the Nebraska Revised  Statutes as well as  any
and  all anti-takeover statutes or  prohibitions under the laws  of the State of
Nebraska or otherwise.

    In reaching its determination to approve and adopt the Merger Agreement  and
the transactions contemplated thereby, the FirsTier Board considered a number of
factors, including, without limitation, the following:

        (i)  the FirsTier Board's  familiarity with and  review of the financial
    condition, results of operations, cash flows, business and purposes of FBS;

        (ii)  the  FirsTier  Board's   review  of  the  operating   environment,
    including,  but not limited  to, the continued  consolidation and increasing
    competition in the banking and  financial services industries, the  prospect
    for  further changes  in these  industries and  the importance  of financial
    resources to being able to  capitalize on developing opportunities in  these
    industries;

       (iii)  the FirsTier Board's assessment that the combined entity resulting
    from the  Merger  would  better  serve the  convenience  and  needs  of  its
    customers and the communities it serves as a result of being a substantially
    larger  bank  (as  compared  to  FirsTier  remaining  independent),  thereby
    affording access to  financial and  managerial resources and  an ability  to
    offer an expanded range of potential products and services;

       (iv) the anticipated cost savings and operating efficiencies available to
    the  combined institution from the Merger (see "-- Management and Operations
    of FirsTier Following the Merger");

        (v) the FirsTier Board's review, based in part on the analysis of Morgan
    Stanley, of strategic  alternatives, including  potential transactions  with
    other  parties and  remaining independent,  which alternatives  the FirsTier
    Board believed were not likely to  result in greater shareholder value  than
    the Merger;

       (vi)  the financial  presentations of Morgan  Stanley and  the opinion of
    Morgan Stanley that, as of the date  of such opinion, the exchange ratio  in
    the  Merger Agreement was fair from a financial point of view to the holders
    of FirsTier  Common Stock  (other  than FBS  and  its affiliates)  (see  "--
    Opinion of FirsTier Financial Advisor");

       (vii)  the FirsTier Board's belief that the terms of the Merger Agreement
    are attractive in that the agreement allows FirsTier shareholders to  become
    shareholders  in  a  combined  institution which  would  be  a  larger, more
    geographically diverse  bank  with  a strong  competitive  position  in  key
    western and mid-western markets;

      (viii)  the  expectation  that the  Merger  will generally  be  a tax-free
    transaction to FirsTier and its shareholders (see "-- Certain Federal Income
    Tax Consequences to FirsTier Shareholders");

       (ix) the  FirsTier  Board's belief,  after  consultation with  its  legal
    counsel,  that  the  required  regulatory  approvals  could  be  obtained to
    consummate the Merger (see "-- Regulatory Approvals Required"); and

        (x) the  effect  of  the  Merger  on  FirsTier's  other  constituencies,
    including  its  senior management  and other  employees and  the communities
    served by FirsTier, including the FirsTier Board's awareness and  assessment
    of  the  potential  that a  merger  could  be expected  to  provide FirsTier
    employees, including senior management,  with employment and other  benefits
    (see  "-- Interests  of Certain  Persons in  the Merger"  and "--  Effect on
    FirsTier Employee Benefit Plans and Stock Option Plans").

                                       28
<PAGE>
    The foregoing discussion of  the information and  factors considered by  the
FirsTier  Board is not intended to be  exhaustive but is believed to include all
material factors considered by the FirsTier Board. In reaching its determination
to approve  and recommend  the Merger,  the FirsTier  Board did  not assign  any
relative  or specific weights to the foregoing factors, and individual directors
may  have  given  differing  weights   to  different  factors.  Throughout   its
deliberations, the FirsTier Board received the advice of special counsel.

    RECOMMENDATION  OF FIRSTIER BOARD  OF DIRECTORS.  The  Board of Directors of
FirsTier recommends  that  the  shareholders  of  FirsTier  approve  the  Merger
Agreement.  The Board believes that  the terms of the  Merger Agreement are fair
and that the Merger is in the best interests of FirsTier and its shareholders.

    THE BOARD OF  DIRECTORS OF  FIRSTIER RECOMMENDS  THAT FIRSTIER  SHAREHOLDERS
VOTE FOR APPROVAL OF THE MERGER AGREEMENT.

    REASONS  OF FBS  FOR THE MERGER.   The  acquisition of FirsTier  by FBS will
expand FBS's retail banking operations  in Nebraska. The acquisition will  allow
FBS  to leverage its existing presence in Nebraska, providing the opportunity to
realize substantial economies from  consolidation. Significant cost savings  are
expected   to  result   from  personnel   reductions,  branch   and  operational
consolidations and general  reductions in corporate  and administrative  support
functions. See "-- Management and Operations of FirsTier Following the Merger."

OPINION OF FIRSTIER FINANCIAL ADVISOR

    FirsTier  retained Morgan Stanley to act  as FirsTier's financial advisor in
connection with the Merger  and related matters  based upon its  qualifications,
expertise  and reputation, as well as  Morgan Stanley's prior investment banking
relationship and familiarity with  FirsTier. At the August  6, 1995, meeting  of
the  FirsTier Board,  Morgan Stanley  rendered an  oral opinion  to the FirsTier
Board that, as of such date, the exchange ratio in the Merger Agreement was fair
from a financial point of  view to the holders  of FirsTier Common Stock  (other
than  FBS and its affiliates). Morgan Stanley  delivered to the FirsTier Board a
written opinion dated  as of the  date of the  Proxy Statement/Prospectus  which
confirms  its  August 6,  1995,  oral opinion.  No  limitations were  imposed by
FirsTier with respect to the investigations  made or the procedures followed  by
Morgan Stanley in rendering its opinions.

    THE FULL TEXT OF MORGAN STANLEY'S OPINION, DATED AS OF THE DATE OF THE PROXY
STATEMENT/PROSPECTUS,  WHICH SETS  FORTH, AMONG OTHER  THINGS, ASSUMPTIONS MADE,
PROCEDURES  FOLLOWED,  MATTERS  CONSIDERED,   AND  LIMITATIONS  ON  THE   REVIEW
UNDERTAKEN,  IS  ATTACHED  AS  APPENDIX  B  TO  THE  PROXY STATEMENT/PROSPECTUS.
FIRSTIER SHAREHOLDERS  ARE URGED  TO  READ THE  MORGAN  STANLEY OPINION  IN  ITS
ENTIRETY.  MORGAN STANLEY'S OPINION ADDRESSES ONLY  THE FAIRNESS OF THE EXCHANGE
RATIO IN THE MERGER FROM  A FINANCIAL POINT OF VIEW  TO THE HOLDERS OF  FIRSTIER
COMMON  STOCK (OTHER  THAN FBS  AND ITS  AFFILIATES) AND  DOES NOT  CONSTITUTE A
RECOMMENDATION TO ANY HOLDER OF FIRSTIER COMMON  STOCK AS TO HOW TO VOTE AT  THE
SPECIAL  MEETING. THE SUMMARY OF THE OPINION  OF MORGAN STANLEY SET FORTH IN THE
PROXY STATEMENT/PROSPECTUS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL
TEXT OF SUCH OPINION.

    Morgan Stanley's opinion  is addressed to  the FirsTier Board  and does  not
constitute  a  recommendation to  any  shareholder of  FirsTier  as to  how such
shareholder should vote at the Special Meeting.

    In connection  with rendering  its August  6, 1995,  oral opinion,  and  its
written  opinion  dated  the  date  of  the  Proxy  Statement/Prospectus, Morgan
Stanley, among other things: (i)  analyzed certain publicly available  financial
statements  and  other  information  of  FirsTier  and  FBS,  respectively; (ii)
analyzed certain internal financial statements and other financial and operating
data concerning FirsTier  and FBS prepared  by the managements  of FirsTier  and
FBS,  respectively; (iii) analyzed certain financial projections prepared by the
management of FirsTier; (iv) reviewed certain public research reports concerning
FBS and discussed these research reports, including earnings estimates contained
therein, with  the  management  of  FBS; (v)  discussed  the  past  and  current
operations  and financial condition  and the prospects of  FirsTier and FBS with
senior executives of FirsTier and FBS, respectively; (vi) reviewed the  reported
prices    and   trading   activity   for   the   FirsTier   Common   Stock   and

                                       29
<PAGE>
the FBS Common Stock; (vii) compared  the financial performance of FirsTier  and
the  prices  and trading  activity of  the  FirsTier Common  Stock with  that of
certain other comparable publicly-traded companies and their securities;  (viii)
reviewed  the  financial terms,  to the  extent  publicly available,  of certain
comparable  precedent  transactions;  (ix)   participated  in  discussions   and
negotiations among representatives of FirsTier and FBS and their legal advisors;
(x)  reviewed the Merger  Agreement, and the Stock  Option Agreement and certain
related  documents;  and  (xi)  performed  such  other  analyses  as  it  deemed
appropriate.

    In  rendering its  opinion, Morgan Stanley  assumed and  relied upon without
independent verification  the  accuracy  and  completeness  of  the  information
reviewed  by Morgan Stanley for the purposes of its opinion. With respect to the
financial projections, Morgan  Stanley assumed  that they  have been  reasonably
prepared  on  bases  reflecting  the  best  currently  available  estimates  and
judgments of the future  financial performance of  FirsTier. Morgan Stanley  has
not  made any independent valuation or appraisal of the assets or liabilities of
FirsTier, nor has  Morgan Stanley been  furnished with any  such appraisals  and
Morgan  Stanley  has not  examined any  loan  files of  FirsTier or  FBS. Morgan
Stanley's opinion is necessarily based on economic, market and other  conditions
as in effect on, and the information made available to Morgan Stanley as of, the
date of the opinions.

    The  projections furnished to  Morgan Stanley for  FirsTier were prepared by
the management  of  FirsTier.  FirsTier  does  not  publicly  disclose  internal
management projections of the type provided to Morgan Stanley in connection with
Morgan Stanley's review of the Merger. Such projections were not prepared with a
view towards public disclosure. The projections were based on numerous variables
and  assumptions  that are  inherently  uncertain, including  without limitation
factors related  to general  economic and  competitive conditions.  Accordingly,
actual   results  could  vary  significantly  from   those  set  forth  in  such
projections.

    Each of  FBS  and  FirsTier  believes  (i)  that  the  historical  financial
information provided by it to Morgan Stanley in connection with its analysis was
accurate  and complete in  all material respects; and  (ii) that the projections
provided by it to Morgan Stanley in connection with its analysis were reasonably
prepared and reflected the best  currently available estimates and judgments  of
the management of FirsTier.

    The following is a brief summary of the analyses performed by Morgan Stanley
in  preparation for its presentations to the  FirsTier Board with respect to the
Merger, and in preparation for rendering its oral opinion to the FirsTier  Board
on August 6, 1995.

    (a)   OVERVIEW OF TRANSACTION TERMS AND BACKGROUND.  Morgan Stanley reviewed
the major terms and conditions of  the Merger. Morgan Stanley also presented  an
overview  of the performance, from  January 1, 1993, through  August 3, 1995, of
the closing price of the FirsTier's  Common Stock relative to the closing  price
of  the Morgan Stanley Bank Index (which  consists of 35 regional banks). Morgan
Stanley highlighted the entry  into and subsequent termination  of the BANC  ONE
Agreement.

    (b)   VALUATION  METHODOLOGIES.  As  part of its  financial analysis, Morgan
Stanley evaluated  the positions  and  strengths of  FirsTier on  a  stand-alone
basis,  considered  cost  savings  and  synergies  relating  to  the  Merger and
determined an acquisition value based  upon specified assumptions. In  addition,
Morgan Stanley considered transactions comparable to the Merger. For purposes of
its  analyses  of  FirsTier  on  a  historical  basis,  Morgan  Stanley utilized
financial information concerning FirsTier as of June 30, 1995.

        COMPARABLE COMPANY  ANALYSIS.   Comparable company  analysis analyzes  a
    company's  operating  performance relative  to  a group  of  publicly traded
    peers. Based on relative  performance and outlook for  a company versus  its
    peers,  this analysis enables an implied  unaffected market trading value to
    be determined. Morgan Stanley analyzed the operating performance of FirsTier

                                       30
<PAGE>
    relative to 35 bank holding companies  (the "Morgan Stanley Bank Index,"  or
    the "Comparables"). Historical financial information used in connection with
    the  ratios provided below with respect to the Comparables is as of June 30,
    1995.

        Morgan Stanley analyzed the relative  performance and value of  FirsTier
    by  comparing  certain  market  trading  statistics  for  FirsTier  with the
    Comparables. Market information used in ratios provided below is as of  June
    30,  1995. The market trading information used in the valuation analysis was
    market price to  book value (which  was 1.9x for  FirsTier; the average  was
    1.7x  for the Morgan  Stanley Bank Index)  and market price  to earnings per
    share estimates  for 1995  and 1996  (which, for  FirsTier, were  12.5x  and
    11.7x, respectively; the averages were 10.4x and 9.5x, respectively, for the
    Morgan  Stanley Bank Index). Earnings per  share estimates for FirsTier were
    based on  First Call  estimates as  of August  3, 1995.  Earnings per  share
    estimates  for the  Morgan Stanley  Bank Index  were based  on Institutional
    Brokers Estimate System  ("IBES") estimates as  of July 20,  1995. IBES  and
    First  Call  are  data services  that  monitor and  publish  compilations of
    earnings  estimates  produced  by   selected  research  analysts   regarding
    companies  of interest to  institutional shareholders. The  implied range of
    values  for  FirsTier  Common  Stock  derived  from  the  analysis  of   the
    Comparables  market price to  book value and  market price to  1995 and 1996
    earnings per share estimates ranged from $28 to approximately $32.

        No company or transaction used in the comparable company and  comparable
    transaction analyses is identical to FirsTier or the Merger. Accordingly, an
    analysis  of  the  results  of the  foregoing  necessarily  involves complex
    considerations  and  judgments  concerning  differences  in  financial   and
    operating  characteristics of FirsTier  and other factors  that could affect
    the public trading value of the companies to which they are being  compared.
    Mathematical  analysis (such as determining the average or median) is not in
    itself  a  meaningful  method  of  using  comparable  transaction  data   or
    comparable company data.

        DIVIDEND  DISCOUNT  ANALYSIS.    Morgan  Stanley  performed  a  dividend
    discount analysis  to determine  a  range of  present  values per  share  of
    FirsTier   Common  Stock  assuming  FirsTier   continued  to  operate  as  a
    stand-alone entity.  This range  was determined  by adding  (i) the  present
    value  of the estimated future dividend  stream that FirsTier could generate
    over the period beginning in June 1995 and ending in year 2000 and (ii)  the
    present value of the "terminal value" of FirsTier Common Stock at the end of
    year  2000. To determine a projected dividend stream, Morgan Stanley assumed
    a dividend payout ratio equal to 40% of FirsTier's projected net income. The
    earnings projections which formed the  basis for the dividends were  adapted
    from  First Call estimates,  as of August 3,  1995, for 1995  and 1996 and a
    growth rate suggested by management of  FirsTier for 1997 through 2000.  The
    "terminal value" of FirsTier Common Stock at the end of the five-year period
    was  determined by applying two price-to-earnings multiples (10x and 11x) to
    year 2000  projected  net  income  for FirsTier.  The  dividend  stream  and
    terminal  values were discounted  to present values  using discount rates of
    12% and 13%, which  Morgan Stanley viewed as  the appropriate discount  rate
    range  for a company with FirsTier's  risk characteristics. For the 10x case
    the fully diluted  stand-alone value  of FirsTier Common  Stock ranged  from
    approximately  $27 per share to approximately $28 per share, and for the 13%
    case the fully  diluted stand-alone  value of FirsTier  Common Stock  ranged
    from approximately $29 per share to approximately $30 per share.

        VALUE  OF POTENTIAL COST  SAVINGS.  In order  to ultimately determine an
    implied acquisition value of  the FirsTier Common  Stock, the potential  for
    realization of future cost savings was estimated by Morgan Stanley using the
    same  present value calculation  as used in  the Dividend Discount Analysis.
    Based on discussions with FirsTier management, Morgan Stanley determined the
    net theoretical  present value  of the  cost savings  that could  result  if
    FirsTier  were acquired.  The estimates  for such  cost savings  ranged from
    15-25%  of  FirsTier's  core  non-interest  expense  (I.E.,  excluding  OREO
    expenses  and any non-recurring charges). Based  on discount rates of 12% to
    13%, a phase-in of cost savings over two years (50% in the first year,  100%
    thereafter),  a non-interest  expense growth  rate of  2.0%, a restructuring
    charge incurred in the first year following

                                       31
<PAGE>
    the Merger  equal  to the  fully  phased-in  cost savings,  and  applying  a
    terminal  multiple of 10x-11x to year 2000 projected cost savings, the range
    of present values for  the cost savings  is between $4 and  $7 per share  of
    FirsTier Common Stock. This analysis did not consider any loss in value that
    could  result if  divestitures of deposits  or assets were  required upon an
    acquisition of FirsTier.

        COMPARABLE TRANSACTION ANALYSIS.   Morgan Stanley performed an  analysis
    of  transactions by selected holding companies  of commercial banks in order
    to obtain  a  valuation range  for  the  FirsTier Common  Stock  based  upon
    comparable  merger transactions. Multiples of  market value, book value, and
    earnings implied  by the  consideration to  be received  by shareholders  of
    FirsTier in the Merger were compared with multiples paid in other comparable
    merger transactions from July 1, 1994 through August 4, 1995. The comparison
    included  a  total  of  14  transactions.  The  transactions  examined  were
    (acquiree/acquiror): Premier  Bancorp/BANC  ONE  CORPORATION,  NBD  Bancorp,
    Inc./First   Chicago  Corporation,  Midlantic  Corporation/PNC  Bank  Corp.,
    Intercontinental Bank/NationsBank Corp., First Fidelity Bancorp/First  Union
    Corp.,  United  Counties  Bancorp/Meridian  Bancorp,  West  One Bancorp/U.S.
    Bancorp, Shawmut National Corporation/ Fleet Financial Group, Inc., Michigan
    National Corporation/National Australia  Bank Limited, Security  Capital/CCB
    Financial,   Worthen   Banking/Boatmen's   Bancshares,   Southern   National
    Corporation/BB&T Financial  Corporation, First  Colonial  Bankshares/Firstar
    Corp., and Grenada Sunburst System Inc./Union Planters. In terms of price to
    book multiple, the mean for the comparable transactions was 1.9x compared to
    approximately  1.9x for the Merger. Return on equity of the acquiree in each
    transaction was also considered, with a mean for the comparable transactions
    of 15.0% compared with 15.9% for the Merger. For the comparable transactions
    multiples of book value ranged from 1.4x to 2.2x and the return on equity of
    the acquiree ranged from 5.5% to 21.5%.

    In  connection  with  its  opinion  dated  as  of  the  date  of  the  Proxy
Statement/Prospectus,  Morgan  Stanley  confirmed  the  appropriateness  of  its
reliance on  the  analyses  used  to  render its  August  6,  1995,  opinion  by
performing  procedures to update  certain of such analyses  and by reviewing the
assumptions upon which such  analyses were based and  the factors considered  in
connection therewith.

    The  preparation  of a  fairness opinion  is  a complex  process and  is not
necessarily susceptible to  a partial  analysis or  summary description.  Morgan
Stanley  believes  that its  analyses must  be  considered as  a whole  and that
selecting portions  of its  analyses, without  considering all  analyses,  would
create  an incomplete view  of the process underlying  its opinion. In addition,
Morgan Stanley may have  given various analyses more  or less weight than  other
analyses,  and may  have deemed various  assumptions more or  less probable than
other  assumptions,  so  that  the  ranges  of  valuations  resulting  from  any
particular  analysis described above should not  be taken to be Morgan Stanley's
view of the actual value of FirsTier.

    In performing its  analyses, Morgan Stanley  made numerous assumptions  with
respect  to industry performance,  general business and  economic conditions and
other matters, many  of which are  beyond the  control of FBS  or FirsTier.  The
analyses  performed by Morgan  Stanley are not  necessarily indicative of actual
values, which may be significantly more or less favorable than suggested by such
analyses. Such  analyses were  prepared solely  as a  part of  Morgan  Stanley's
analysis of the fairness from a financial point of view of the exchange ratio in
the Merger Agreement to the holders of FirsTier Common Stock (other than FBS and
its  affiliates) and were provided to the  FirsTier Board in connection with the
delivery of  Morgan Stanley's  August  6, 1995,  opinion.  The analyses  do  not
purport  to be  appraisals or  to reflect  the prices  at which  a company might
actually be sold. In addition, as described above, Morgan Stanley's opinion  and
presentations  to  the  FirsTier  Board  was  one  of  many  factors  taken into
consideration by the FirsTier Board in  making its determination to approve  the
Merger.  Consequently, the Morgan Stanley analyses described above should not be
viewed as determinative of the FirsTier Board's or FirsTier management's opinion
with respect  to the  value of  FirsTier or  of whether  the FirsTier  Board  or
FirsTier  management would  have been willing  to agree to  a different exchange
ratio.

                                       32
<PAGE>
    The FirsTier Board  retained Morgan  Stanley based upon  its experience  and
expertise.  Morgan Stanley  is an internationally  recognized investment banking
and advisory firm. Morgan Stanley, as  part of its investment banking  business,
is  continuously  engaged  in  the valuation  of  businesses  and  securities in
connection with mergers and acquisitions, negotiated underwritings,  competitive
biddings,  secondary distributions  of listed  and unlisted  securities, private
placements and valuations for corporate and other purposes. Morgan Stanley makes
a market in  FirsTier Common Stock  and FBS  Common Stock, and  may continue  to
provide  investment banking services to FBS in  the future. In the course of its
market-making and other  trading activities,  Morgan Stanley may,  from time  to
time, have a long or short position in, and buy and sell securities of, FirsTier
and  FBS. In the past, Morgan Stanley and its affiliates have provided financial
advisory and financing services to FBS, and have received customary fees for the
rendering of these services. Recent services  rendered by Morgan Stanley to  FBS
include  acting,  in September  1995,  as lead  manager  in connection  with the
offering of $250 million subordinated notes due 2007 of FBS. Since the beginning
of 1993, Morgan Stanley and its affiliates have also provided financial advisory
and financing  services  to  FirsTier, and  received  customary  fees  totalling
approximately  $275,000  for the  rendering of  those services.  Recent services
rendered by Morgan Stanley to FirsTier  include serving as financial advisor  to
FirsTier in connection with the BANC ONE Agreement.

    FirsTier  has agreed to pay  Morgan Stanley an advisory  fee of a maximum of
$100,000 and a transaction fee of  $4.5 million, against which the advisory  fee
will be credited, which will become payable upon the consummation of the Merger.
In  addition,  FirsTier  has agreed,  among  other things,  to  reimburse Morgan
Stanley for all  reasonable out-of-pocket expenses  incurred in connection  with
the  services provided  by Morgan  Stanley, and  to indemnify  and hold harmless
Morgan Stanley and certain  related parties to the  full extent lawful from  and
against  certain liabilities  and expenses, including  certain liabilities under
the federal securities laws, in connection with its engagement.

TERMS OF THE MERGER; CONSIDERATION TO BE RECEIVED BY FIRSTIER SHAREHOLDERS

    On the Effective Date, FirsTier  will merge with and  into FBS, with FBS  as
the  surviving  corporation. The  officers  and directors  of  FBS prior  to the
Effective Date  will be  the officers  and directors  of FBS,  as the  surviving
corporation,  after  the Effective  Date. The  Certificate of  Incorporation and
Bylaws of  FBS  as  in effect  immediately  prior  to the  Merger  will  be  the
Certificate  of  Incorporation and  Bylaws  of the  surviving  corporation until
further amended as provided therein and in accordance with law. On the Effective
Date, each outstanding  share of FirsTier  Common Stock will  be converted  into
 .8829 share of FBS Common Stock. See "Description of FBS Capital Stock." Also on
the  Effective  Date, each  outstanding option  to  purchase shares  of FirsTier
Common Stock issued pursuant to FirsTier's employee stock option plans shall  be
assumed by FBS and shall thereafter be deemed to constitute an option to acquire
shares of FBS Common Stock with appropriate adjustments. See "Effect on FirsTier
Employee  Benefit and Stock Option Plans." If the Merger is consummated, holders
of FirsTier Common Stock will no longer hold any interest in FirsTier other than
through their interests in shares of FBS Common Stock.

    Because the exchange ratio of FBS Common Stock for FirsTier Common Stock  is
fixed,  FirsTier shareholders will  not be compensated for  any decreases in the
market price of FBS Common Stock which could occur before the Effective Date. As
a result, in the event the market price of FBS Common Stock decreases, the value
of the FBS Common Stock  to be received in the  Merger in exchange for  FirsTier
Common  Stock would  decrease. However,  in the  event the  market price  of FBS
Common Stock increases, the value of the FBS Common Stock to be received in  the
Merger  in exchange for FirsTier Common  Stock would increase. The market prices
of FBS Common Stock and FirsTier Common Stock as of a recent date are set  forth
herein  under "Summary -- Markets and  Market Prices," and FirsTier shareholders
are advised to obtain recent market quotations for FBS Common Stock and FirsTier
Common Stock. NO ASSURANCE CAN  BE GIVEN AS TO THE  MARKET PRICES OF FBS  COMMON
STOCK  OR FIRSTIER COMMON STOCK  AT ANY TIME BEFORE THE  EFFECTIVE DATE OR AS TO
THE MARKET PRICE OF FBS COMMON STOCK AT ANY TIME THEREAFTER.

                                       33
<PAGE>
    The Merger Agreement provides that if,  between August 6, 1995 (the date  of
the  Merger Agreement) and  the Effective Date,  shares of FBS  Common Stock are
changed  into  a  different  number  or  class  of  shares  by  reason  of   any
reclassification, recapitalization, split-up, combination, exchange of shares or
readjustment,  or if a stock dividend  or extraordinary cash dividend thereon is
declared with a record date within such period, then the number of shares of FBS
Common Stock  issued  as  a result  of  the  Merger will  be  appropriately  and
proportionately  adjusted so that holders of  FirsTier Common Stock will receive
that number of shares of FBS Common  Stock that they would have received if  the
record  date for such reclassification, recapitalization, split-up, combination,
exchange  of  shares,  readjustment  or  stock  dividend  had  been  immediately
following the Effective Date.

    No  fractional shares  of FBS  Common Stock  will be  issued in  the Merger.
Instead, the Merger Agreement provides that in lieu of any fractional share  FBS
will pay to each holder of FirsTier Common Stock who otherwise would be entitled
to  receive  a fractional  share  of FBS  Common  Stock a  cash  amount (without
interest) determined  by multiplying  (i) the  closing price  per share  of  FBS
Common  Stock on  the Effective  Date by (ii)  the fractional  share interest to
which such holder would otherwise be entitled.

    Shares of FBS capital stock issued and outstanding immediately prior to  the
Effective  Date will  remain issued and  outstanding thereafter and  will not be
affected by the Merger.

EFFECTIVE DATE OF THE MERGER

    The Merger will become effective upon  the filing of certificates of  merger
relating  thereto with the  Secretaries of State  of the States  of Delaware and
Nebraska. The Merger Agreement provides that the parties thereto will cause such
certificates of merger to be filed as  soon as practicable after receipt of  all
necessary   regulatory  approvals  provided  that  each  of  the  conditions  to
consummation of the Merger has been  satisfied or waived. See "-- Conditions  to
Consummation  of the Merger." The Merger  cannot become effective until FirsTier
shareholders have  approved the  Merger Agreement  and all  required  regulatory
approvals and actions have been obtained and taken. See "-- Regulatory Approvals
Required.'  The Merger Agreement may be terminated  by either FBS or FirsTier if
the Merger  has  not become  effective  by March  31,  1996 (unless  failure  to
consummate  the Merger by such date shall be due to the action or failure to act
of the party seeking to terminate the Merger Agreement in breach of such party's
obligations thereunder). If  between the date  of the Merger  Agreement and  the
Effective  Date there  shall have been  a "Significant Decline"  in the "Average
Closing Price" of FBS Common Stock  compared to the price of $43.0417,  FirsTier
may,  at its option, abandon and terminate  the Merger Agreement before it takes
effect. See "-- Termination."

EXCHANGE OF FIRSTIER COMMON STOCK CERTIFICATES

    Following the Effective Date, First Chicago  Trust Company of New York,  the
Exchange  Agent,  will send  a notice  and  transmittal form  to each  holder of
FirsTier Common Stock of  record at the Effective  Date advising such holder  of
the  effectiveness of  the Merger  and of  the procedure  for surrendering their
certificates formerly  evidencing  FirsTier Common  Stock  in exchange  for  new
certificates  evidencing FBS Common Stock. Such notice and transmittal form will
be sent as soon as practicable  after the Effective Date. FIRSTIER  SHAREHOLDERS
SHOULD  NOT SEND IN  THEIR STOCK CERTIFICATES  UNTIL THEY RECEIVE  THE LETTER OF
TRANSMITTAL FORM AND INSTRUCTIONS FROM THE EXCHANGE AGENT.

    Upon surrender to the  Exchange Agent of one  or more certificates  formerly
evidencing  FirsTier Common Stock, together with a properly completed and signed
letter of transmittal, there will be issued  and mailed to the holder thereof  a
new  certificate or certificates representing the  number of whole shares of FBS
Common Stock to which  such holder is entitled  under the Merger Agreement  and,
where applicable, a check for the amount of cash payable in lieu of a fractional
share  of FBS  Common Stock.  A certificate representing  FBS Common  Stock or a
check in lieu of a fractional share will be issued in a name other than the name
in which the surrendered FirsTier  Common Stock certificate was registered  only
if (i) the FirsTier Common Stock certificate surrendered is properly endorsed or
accompanied  by appropriate  stock powers  and is  otherwise in  proper form for
transfer and (ii)  the person  requesting the  issuance of  such certificate  or
check either pays to the Exchange Agent

                                       34
<PAGE>
any  transfer  or  other  taxes  required by  reason  of  the  issuance  of such
certificate or check in a name other  than that of the registered holder of  the
certificate surrendered or establishes to the satisfaction of the Exchange Agent
that such tax has been paid or is not applicable.

    After  the Effective Date  and until surrendered  and exchanged as described
above, certificates which, prior  to the Effective  Date, represented shares  of
FirsTier  Common Stock shall be deemed to  represent and evidence only the right
to receive shares of  FBS Common Stock  and cash in lieu  of a fractional  share
pursuant  to the terms  of the Merger  Agreement. After the  Effective Date, the
record holder of an outstanding certificate formerly evidencing FirsTier  Common
Stock  will be entitled to  vote the shares of FBS  Common Stock into which such
shares of FirsTier Common Stock shall be  converted on any matters on which  the
holders  of record of FBS Common Stock shall be entitled to vote. However, until
such certificates are surrendered to FBS, no dividend or distribution payable to
holders of record of FBS Common Stock will  be paid to the holders of record  of
such unsurrendered certificates. Upon the surrender of such a certificate, there
will  be  paid  to the  holder  thereof,  without interest,  the  amount  of any
dividends or distributions  which had a  record date on  or after the  Effective
Date with respect to such number of whole shares of FBS Common Stock.

    If  any certificate formerly evidencing FirsTier Common Stock has been lost,
stolen or destroyed, the Exchange Agent  shall, upon the making of an  affidavit
of  that fact by  the holder thereof, issue  and pay in  exchange for such lost,
stolen or destroyed certificate shares of FBS Common Stock and cash in lieu of a
fractional share as may be required pursuant to the Merger Agreement;  provided,
however,  that FBS may, in its discretion and as a condition to the issuance and
payment of consideration to which the holder of such certificate is entitled  as
a  result of the Merger, require the owner thereof to deliver a bond in such sum
as FBS may direct as indemnity against  any claim that may be made against  FBS,
FirsTier,  the Exchange Agent or any other party with respect to the certificate
alleged to have been lost, stolen or destroyed. After the Effective Date,  there
shall  be  no  further  registration  of transfers  on  the  records  of  FBS of
outstanding certificates formerly representing shares of FirsTier Common  Stock,
and  if a certificate formerly representing such shares is presented to FirsTier
or FBS,  it  shall be  forwarded  to the  Exchange  Agent for  cancellation  and
exchange  for  the  consideration  as  described  above.  Certificates  formerly
evidencing shares of FirsTier Common Stock surrendered by any former shareholder
of FirsTier who is deemed an "affiliate"  of FirsTier will not be exchanged  for
shares  of FBS Common  Stock and cash in  lieu of a  fractional share until such
shareholder has  executed and  delivered to  FBS a  letter with  respect to  the
resale  of  shares of  FBS Common  Stock  received by  such shareholders  in the
Merger. See "-- Resale of FBS Common Stock Received by FirsTier Shareholders."

    All consideration paid or  delivered upon the  surrender of FirsTier  Common
Stock  shall be deemed to have been issued  and paid in full satisfaction of all
rights pertaining to such shares of FirsTier Common Stock.

CONDITIONS TO CONSUMMATION OF THE MERGER

    The Merger  will occur  only if  the  Merger Agreement  is approved  by  the
requisite vote of FirsTier shareholders. In addition, consummation of the Merger
is  subject to the  satisfaction of certain other  conditions, unless waived (to
the extent such waiver is permitted by law). A failure of any such conditions to
be satisfied, if not waived, would prevent consummation of the Merger.

    The obligations  of both  FBS  and FirsTier  to  consummate the  Merger  are
subject   to  satisfaction  of  the  following  conditions,  among  others:  (i)
regulatory approval for the consummation of the transactions contemplated by the
Merger Agreement shall have  been obtained from the  Federal Reserve Board,  the
Superintendent  of Banking of Iowa, the  Banking Commissioner of Wyoming and any
other governmental authority  from which  approval is  required, the  applicable
waiting period, if any, under the Bank Holding Company Act shall have expired or
been terminated and all other statutory or regulatory waiting periods shall have
lapsed;  (ii) no  injunction or  other court  order shall  have been  issued and
remain  in  effect   which  would  impair   consummation  of  the   transactions
contemplated  by the  Merger Agreement; (iii)  no party to  the Merger Agreement
shall have terminated such agreement

                                       35
<PAGE>
as permitted  therein;  (iv) the  Registration  Statement of  which  this  Proxy
Statement/Prospectus  is a part shall have been declared effective and shall not
be subject to a stop order of  the Securities and Exchange Commission, and  such
Registration  Statement  shall not  be  subject to  a  stop order  of  any state
securities commission; (v) an opinion of Wachtell, Lipton, Rosen & Katz, counsel
to FirsTier, shall have been obtained to the effect that for federal income  tax
purposes, (a) the Merger will qualify as a "reorganization" under Section 368(a)
of  the Code, (b) no gain or loss will be recognized by any FirsTier shareholder
(except in connection with  the receipt of cash)  upon the exchange of  FirsTier
Common Stock for FBS Common Stock in the Merger, (c) the basis of the FBS Common
Stock received by a FirsTier shareholder who exchanges FirsTier Common Stock for
FBS  Common Stock  will be the  same as the  basis of the  FirsTier Common Stock
surrendered in exchange  therefor (subject  to any adjustments  required as  the
result  of receipt of cash  in lieu of a fractional  share of FBS Common Stock),
(d) the  holding  period  of  the  FBS  Common  Stock  received  by  a  FirsTier
shareholder  receiving FBS Common Stock will include the period during which the
FirsTier Common Stock surrendered  in exchange thereof  was held (provided  that
the  FirsTier Common Stock  of such FirsTier  shareholder was held  as a capital
asset at the Effective Date), and (e) cash received by a FirsTier shareholder in
lieu of a  fractional share  interest of  FBS Common  Stock will  be treated  as
having  been received  as a  distribution in  full payment  in exchange  for the
fractional share  interest of  FBS  Common Stock  which such  shareholder  would
otherwise  be entitled  to receive,  and will  qualify as  capital gain  or loss
(assuming the FirsTier Common  Stock was a capital  asset in such  shareholder's
hands  at the  Effective Date); and  (vi) the FBS  Common Stock to  be issued to
holders of FirsTier  Common Stock  in the Merger  shall have  been approved  for
listing  on  the  NYSE on  official  notice  of issuance.  The  Merger Agreement
provides that no regulatory approval referred to in (i) above shall contain  any
conditions or restrictions that FBS reasonably believes will materially restrict
or   limit  the  business  or  activities  of  FBS  or  FirsTier  or  FirsTier's
subsidiaries, taken as a whole, or have  a material adverse effect on, or  would
be  reasonably  likely  to have  a  material  adverse effect  on,  the business,
operations, results  of  operations  or  financial  condition  of  FBS  and  its
subsidiaries,  taken  as  a  whole,  on  the  one  hand,  and  FirsTier  and its
subsidiaries taken as a whole, on the other hand.

    In addition  to the  foregoing  conditions, the  obligation of  FirsTier  to
consummate  the Merger is  subject to satisfaction  of the following conditions,
among others: (i)  the representations and  warranties of FBS  set forth in  the
Merger  Agreement shall be true and correct as of the date of such agreement and
as of the Effective Date, except where the failure to be true and correct  would
not  have, or would  not reasonably be  expected to have  individually or in the
aggregate, a material  adverse effect  on the business,  operations, results  of
operations or financial condition of FBS and its subsidiaries, taken as a whole;
and  FBS  shall in  all  material respects  have  performed each  obligation and
agreement and complied with each covenant  to be performed and complied with  by
it  under the Merger Agreement at or  prior to the Effective Date; (ii) FirsTier
shall have received an officer's certificate  of the Chief Financial Officer  of
FBS,  dated as of  the Effective Date,  to the effect  that he has  no reason to
believe that the  conditions set  forth in (i)  above have  not been  fulfilled;
(iii)  the Merger Agreement shall have been  approved by the affirmative vote of
the holders  of the  percentage  of FirsTier  capital  stock required  for  such
approval  under the provisions of FirsTier's charter and bylaws and the Nebraska
Business Corporation Act;  (iv) since the  date of the  Merger Agreement,  there
shall  have been no adverse change in,  and no event, occurrence or developments
in the  business of  FBS or  its subsidiaries  that, taken  together with  other
events,  occurrences and developments with respect  to such business, would have
or would  reasonably be  expected to  have  a material  adverse effect  on,  the
business,  operations, results of  operations or financial  condition of FBS and
its subsidiaries, taken as whole; and (v) no event shall have occurred resulting
in the  preferred share  purchase  rights relating  to  FBS Common  Stock  being
distributed  or  becoming  exercisable  or triggered  (see  "Description  of FBS
Capital Stock").

    In addition to the foregoing conditions, the obligation of FBS to consummate
the Merger is subject to satisfaction of the following conditions, among others:
(i) the representations and warranties of FirsTier in the Merger Agreement shall
have been true  and correct  as of  the date  of such  agreement and  as of  the
Effective  Date, except where the failure to be true and correct would not have,

                                       36
<PAGE>
or would not reasonably be expected to have, individually or in the aggregate  a
material  adverse effect on  the business, operations,  results of operations or
financial condition of  FirsTier and  its subsidiaries,  taken as  a whole;  and
FirsTier  shall  in all  material respects  have  performed each  obligation and
agreement and complied with each covenant  to be performed and complied with  by
it  under the Merger Agreement at or prior to the Effective Date; (ii) FBS shall
have received  an  officer's  certificate  of the  Chief  Executive  Officer  of
FirsTier,  dated as  of the Effective  Date, to the  effect he has  no reason to
believe that the  conditions set  forth in (i)  above have  not been  fulfilled;
(iii)  FirsTier shall  have delivered to  FBS the affiliate  letters of FirsTier
described  under  "--  Resale   of  FBS  Common   Stock  Received  by   FirsTier
Shareholders";  (iv) there shall not be any  action taken, or any statute, rule,
regulation, judgment, order or injunction proposed, enacted, entered,  enforced,
promulgated, issued or deemed applicable to the transactions contemplated by the
Merger   Agreement  by  any  federal,  state   or  other  court,  government  or
governmental authority  or agency  which would  reasonably be  expected to  have
specified  adverse consequences;  (v) since  the date  of the  Merger Agreement,
there shall have been no material adverse change in, and no event, occurrence or
development in the business of FirsTier or its subsidiaries that, taken together
with other events, occurrences and  developments with respect to such  business,
would have or would reasonably be expected to have a material adverse effect on,
the  business,  operations,  results  of operations  or  financial  condition of
FirsTier and its subsidiaries, taken  as a whole; and  (vi) no event shall  have
occurred  resulting  in the  "rights" relating  to  FirsTier Common  Stock being
distributed or becoming exercisable or  triggered (see "Description of  FirsTier
Capital Stock").

REGULATORY APPROVALS REQUIRED

    Under  the Merger  Agreement, the  obligations of  both FBS  and FirsTier to
consummate  the  Merger  are  conditioned  upon  the  receipt  of  all  required
regulatory approvals (without certain restrictions or limitations) and the lapse
of  all required regulatory waiting periods.  See "-- Conditions to Consummation
of the  Merger."  There can  be  no  assurance that  any  applicable  regulatory
authority  will approve or take other required action with respect to the Merger
or as to the date of such regulatory approval or other action. FBS and  FirsTier
are  not aware  of any  governmental approvals or  actions that  are required in
order to consummate  the Merger  except as  described below.  Should such  other
approval  or action be required, it is  contemplated that FBS and FirsTier would
seek such approval or action.  There can be no assurance  as to whether or  when
any such other approval or action, if required, could be obtained.

    FEDERAL  RESERVE BOARD.  The Merger is  subject to the prior approval of the
Federal Reserve Board  under Section 3(a)(5)  of the Bank  Holding Company  Act.
Under  the Bank Holding Company  Act, the Federal Reserve  Board is required, in
approving a  transaction such  as the  Merger, to  take into  consideration  the
financial  and managerial  resources and  future prospects  of the  existing and
proposed institutions and  the convenience and  needs of the  communities to  be
served.  The Bank Holding  Company Act prohibits the  Federal Reserve Board from
approving the Merger if it  would result in a monopoly  or be in furtherance  of
any  combination or  conspiracy to  monopolize or  to attempt  to monopolize the
business of banking in any part of  the United States. The Bank Holding  Company
Act  also prohibits the Federal  Reserve Board from approving  the Merger if its
effect in  any section  of the  United  States may  be substantially  to  lessen
competition  or tend to  create a monopoly, or  if it would  in any other manner
result in a restraint of trade, unless the Federal Reserve Board finds that  the
anti-competitive  effects of  the Merger  are clearly  outweighed in  the public
interest by the probable  effect of the transaction  in meeting the  convenience
and needs of the communities to be served.

    Finally,  the  Bank  Holding  Company Act,  as  amended  by  the Riegle-Neal
Interstate Banking and Branching Efficiency Act of 1994, authorizes  "adequately
capitalized"   and  "adequately   managed"  bank   holding  companies   to  make
acquisitions of banks located  anywhere in the United  States without regard  to
state  laws that might otherwise prohibit such transactions. The Federal Reserve
Board's  authority  to  approve  such  transactions,  however,  is  subject   to
compliance  with the  following conditions: (i)  the Federal  Reserve Board must
consider  a  bank  holding  company's   record  of  compliance  with   Community
Reinvestment  Act of  1977, as  amended (the  "Community Reinvestment  Act") and

                                       37
<PAGE>
similar state laws; (ii) the Federal Reserve Board may not approve a transaction
if a bank  holding company  controls, or would  control, deposits  in excess  of
applicable  state or federal concentration limits; and (iii) the Federal Reserve
Board may not  approve a transaction  if the bank(s)  to be acquired  by a  bank
holding company do not satisfy any state-imposed minimum age requirements (up to
a maximum of five years).

    For  the foregoing purposes,  Iowa and Nebraska law  both impose a five-year
minimum age  requirement.  In  addition,  Iowa law  imposes  a  maximum  deposit
limitation  of 10 percent  of the total  time and demand  deposits of all banks,
savings and  loan associations,  and savings  banks in  the State  of Iowa,  and
Nebraska  law imposes a  maximum deposit limitation  of 14 percent  of the total
deposits of all banks in the State of Nebraska plus the total deposits,  savings
accounts,  passbook accounts,  and shares in  savings and  loan associations and
building and loan associations in the State of Nebraska.

    In addition, under the Community Reinvestment  Act of 1977, as amended  (the
"Community  Reinvestment Act"), the Federal Reserve Board must take into account
the record of  performance of the  existing institutions in  meeting the  credit
needs of the entire community, including low- and moderate-income neighborhoods,
served by such institutions.

    The acquisition of FirsTier Common Stock by FBS pursuant to the Stock Option
Agreement  would  be subject  to  approval by  the  Federal Reserve  Board under
Section 3 of the Bank Holding Company Act. See "-- Option Granted to FBS."

    ARIZONA DIRECTOR OF INSURANCE.   Under Section  20-481.02(B) of the  Arizona
Revised  Statutes, FBS must provide at least 30-days prior written notice to the
Director of Insurance (the "Director") of its intent to acquire FirsTier and its
insurance company subsidiary, FirsTier Insurance,  Inc. The Director must  issue
an  order  disapproving  FBS's  acquisition  of  FirsTier  Insurance,  Inc.  and
requiring its  expeditious  divestiture if  he  finds that  the  acquisition  of
control:  (i) is  contrary to  law; (ii) is  inequitable to  the shareholders of
FirsTier Insurance, Inc.; (iii) would  substantially reduce the security of  and
service to be rendered to policyholders of FirsTier Insurance, Inc. in the State
of  Arizona or elsewhere;  (iv) after the change  of control FirsTier Insurance,
Inc. would not  be able  to satisfy  the requirements  for the  reissuance of  a
certificate of authority to write the line or lines of insurance for which it is
presently  licensed; (v) the  effect of the  acquisition of control  would be to
substantially lessen competition in insurance in the State of Arizona or tend to
create a monopoly;  (vi) the  financial condition  of FBS  might jeopardize  the
financial stability of FirsTier Insurance, Inc. or prejudice the interest of its
policyholders;  (vii) the plans or proposals  that FBS has to liquidate FirsTier
Insurance, Inc., sell its assets, or consolidate or merge it with any person, or
to make any  other material  change in its  business or  corporate structure  or
management,  are unfair and unreasonable to policyholders of FirsTier Insurance,
Inc. and are not in the public interest; (viii) the competence, experience,  and
integrity  of FBS are such that it would not be in the interest of policyholders
of FirsTier  Insurance, Inc.  and of  the public  to permit  the acquisition  of
control; or (ix) the acquisition is likely to be hazardous or prejudicial to the
insurance-buying public.

    IOWA  SUPERINTENDENT OF BANKING.  Under Section 524.1802(1) of the Iowa Code
Annotated, FBS may not acquire  control of FirsTier Bank, National  Association,
Council  Bluffs, Nevada National  Bank, Valley State  Bank, and Security Savings
Bank, a subsidiary of FirsTier, as a result of the Merger if, as a result of the
Merger, FBS would  control more than  10 percent  of the total  time and  demand
deposits  of all banks, savings and loan  associations, and savings banks in the
State of Iowa, as determined by the Iowa Superintendent of Banking on the  basis
of  the most recent reports of such depository institutions to their supervisory
authorities. In addition, FBS's  acquisition of Valley  State Bank and  Security
Savings  Bank is  subject to  the prior approval  of the  Iowa Superintendent of
Banking  under  Section   524.519  of   the  Iowa  Code   Annotated.  The   Iowa
Superintendent  of Banking must approve the acquisition of Valley State Bank and
Security Savings Bank if he is satisfied (i) that FBS is qualified by character,
experience  and  financial   responsibility  to  control   and  operate   Valley

                                       38
<PAGE>
State  Bank and Security Savings Bank in a sound and legal manner, and (ii) that
the interests of depositors, creditors and shareholders of Valley State Bank and
Security Savings Bank, and the public generally, will not be jeopardized by  the
proposed change in control.

    WYOMING  COMMISSIONER OF  BANKING.  FBS's  acquisition of  Wyoming Trust and
Management Co. as a result of the Merger is subject to the prior approval of the
Wyoming Commissioner of Banking under Section 13-9-303 of the Wyoming  Statutes.
The  Wyoming Commissioner  of Banking  must approve  the acquisition  of Wyoming
Trust and Management Co. unless she determines that (i) there is or recently has
been evidence of criminal activity on the part of FBS or any of its officers  or
directors,  or (ii)  the acquisition would  jeopardize the  integrity of Wyoming
Trust and Management  Co., or  (iii) FBS has  not responsibly  met the  service,
credit,  and financing  needs of the  communities it serves.  In addition, under
Section 13-9-303(c) of  the Wyoming  Statutes, FBS  may not  acquire control  of
Wyoming  Trust and  Management Co. unless  Wyoming Trust and  Management Co. has
been in existence for at least three years. With respect to compliance with this
requirement, Wyoming Trust  and Management Co.  has been in  existence for  more
than three years.

    CURRENT  STATUS OF REGULATORY APPROVALS.  Federal Reserve Board approval was
obtained on  December 18,  1995, the  approval of  the Wyoming  Commissioner  of
Banking   was  obtained  on   December  8,  1995  and   the  approval  the  Iowa
Superintendent of Banking was obtained on  January 17, 1996. The Arizona  notice
was  filed on December 26, 1995, and  the Arizona Department of Insurance stated
that it had no objection to the Merger by letter dated January 9, 1996.

WAIVER AND AMENDMENT

    At any time prior to the Effective  Date, any party to the Merger  Agreement
may  (i) extend the time for performance of any obligations or other acts of any
other party under the Merger Agreement or (ii) waive compliance with any of  the
agreements  of the other parties  or with any conditions  of its own obligations
contained in  the  Merger  Agreement,  to  the  extent  that  such  obligations,
agreements and conditions are intended for such party's own benefit.

    The  Merger  Agreement  may  not be  amended  except  by  written instrument
approved by the parties to  such agreement and signed on  behalf of each of  the
parties  thereto. The  Merger Agreement may  be amended without  the approval of
FirsTier shareholders,  except that  no such  amendment will  be made  following
approval  of the  Merger agreement  by FirsTier  shareholders if  such amendment
changes the number of shares of FBS  Common Stock for which the FirsTier  Common
Stock is to be exchanged or otherwise materially adversely affects the rights of
such shareholders.

TERMINATION

    The Merger Agreement may be terminated at any time before the Effective Date
(i) by mutual consent of FBS and FirsTier; (ii) by either FBS or FirsTier if any
of  the  conditions to  such party's  obligation  to consummate  the transaction
contemplated in the Merger Agreement have become impossible to satisfy; (iii) by
either FBS or  FirsTier if  the Merger  Agreement and  the Merger  are not  duly
approved by the FirsTier shareholders at the Special Meeting; (iv) by either FBS
or FirsTier if the Effective Date is not on or before March 31, 1996 (unless the
failure  to consummate  the Merger by  such date shall  be due to  the action or
failure to act of the party seeking to terminate the Merger Agreement in  breach
of  such party's obligations thereunder);  (v) by FBS if,  after the date of the
Merger Agreement,  the Board  of  Directors of  FirsTier shall  have  withdrawn,
modified  or changed its  recommendation of the Merger  Agreement or the Merger;
(vi) by FBS if there shall have occurred specified events relating generally  to
the making by third parties of offers to acquire FirsTier and the acquisition by
third  parties of specified  percentages of FirsTier Common  Stock; and (vii) by
FirsTier if, between  the date of  the Merger Agreement  and the Effective  Date
there shall have been a "Significant Decline" (as defined below) in the "Average
Closing  Price" (as defined below) of FBS  Common Stock compared to the price of
$43.0417. See "The Merger -- Conditions to Consummation of the Merger."

    The "Average Closing Price"  of FBS Common Stock  shall mean the average  of
the  closing  price of  FBS Common  Stock as  reported  on the  NYSE for  the 20
consecutive trading days ending on the date

                                       39
<PAGE>
the Federal  Reserve Board  issues an  order approving  the Merger  (the  "Final
Calculation  Period"). A "Significant Decline" shall  be deemed to have occurred
if (i) the FBS Average Closing Price is less than $34.43336 and (ii) the  number
obtained  by dividing the FBS Average Closing Price by the $43.0417 is less than
the number obtained by dividing the average of the closing prices of the  Morgan
Stanley  35-Bank Regional Peer Group during  the Final Calculation Period by the
average of the closing prices of the Morgan Stanley 35-Bank Regional Peer  Group
for  the 20 consecutive trading  days ending on the day  prior to August 6, 1995
and subtracting .20 from the quotient.

    Any party desiring  to terminate the  Merger Agreement is  required to  give
written  notice of such termination and the reasons therefor to the other party.
If the Merger Agreement is terminated pursuant to the foregoing provisions, such
termination will  be  without liability  or  obligation  of any  party  (or  any
shareholder,  officer,  employee, agent,  consultant  or representative  of such
party) to any  other party except  as otherwise  provided in law  or equity  and
except  for  the  survival  of  certain covenants  relating  to  payment  by the
respective parties  of their  own expenses  and confidentiality  of  information
provided.

NO SOLICITATION

    The  Merger Agreement  provides that  FirsTier (including  its subsidiaries)
will not,  and  will  cause  its  officers,  directors,  employees,  agents  and
affiliates,  not  to, directly  or indirectly,  solicit, authorize,  initiate or
encourage submission of,  any proposal,  offer, tender offer  or exchange  offer
from  any person or entity (including officers  or employees of FirsTier or such
subsidiaries)  relating  to  any  liquidation,  dissolution,   recapitalization,
merger, consolidation or acquisition or purchase of all or a material portion of
the  assets or deposits  of, or any equity  interest in, FirsTier  or any of its
subsidiaries, or,  unless FirsTier  shall have  determined, after  receipt of  a
written  opinion  of counsel  to  FirsTier (a  copy  of which  opinion  shall be
delivered to FBS), that the Board of Directors of FirsTier has a fiduciary  duty
to  do  so,  (i)  participate  in any  negotiations  in  connection  with  or in
furtherance of any of the foregoing or (ii) permit any person other than FBS and
its representatives to have any access to  the facilities of, or furnish to  any
person  other than FBS  and its representatives  any non-public information with
respect to,  FirsTier  or any  of  its subsidiaries  in  connection with  or  in
furtherance of any of the foregoing. The Merger Agreement also requires FirsTier
promptly  to notify FBS if a proposal, offer, inquiry or contact is made with it
concerning  any  such  transactions  and  promptly  to  provide  FBS  with  such
information concerning such matters as FBS may request. The foregoing provisions
of  the Merger Agreement may have the effect of discouraging competing offers to
acquire or merge with FirsTier.

OPTION GRANTED TO FBS

    On the day  following execution of  the Merger Agreement,  FirsTier and  FBS
executed  a  Stock Option  Agreement  dated August  7,  1995 (the  "Stock Option
Agreement"). The Stock  Option Agreement  has been filed  as an  exhibit to  the
registration  statement of which this Proxy Statement/ Prospectus is a part. The
following description  of the  Stock Option  Agreement does  not purport  to  be
complete  and is  qualified in  its entirety  by reference  to the  Stock Option
Agreement, which is incorporated herein in its entirety. Exercise of the  Option
granted  by the Stock Option  Agreement is subject to  the prior approval of the
Federal Reserve Board  under the Bank  Holding Company Act.  See "--  Regulatory
Approvals Required."

    Under  the  Stock  Option  Agreement, FirsTier  granted  FBS  the  Option to
purchase newly authorized  but unissued  or treasury shares  of FirsTier  Common
Stock  in  a number  approximately equal  to 19.9%  of the  number of  shares of
FirsTier Common Stock outstanding immediately before exercise of the Option. The
exercise price of the  Option is $37.00 per  share, subject to adjustment  under
specified  circumstances (such exercise price, as so adjusted, being referred to
herein as  the  "Option Price").  The  Option is  exercisable  only if  both  an
"Initial  Triggering Event" and  a "Subsequent Triggering  Event" occur prior to
the occurrence of  an "Exercise Termination  Event," as such  terms are  defined
below.

                                       40
<PAGE>
    The  Stock Option Agreement  defines the term  "Initial Triggering Event" to
mean any of the following events or transactions:

        (i) FirsTier or  any of  its subsidiaries, without  having received  the
    prior  written consent  of FBS,  enters into  an agreement  to engage  in an
    "Acquisition Transaction" (as defined below) with any person other than  FBS
    or  a subsidiary of FBS, or the  FirsTier Board of Directors recommends that
    FirsTier shareholders approve  or accept any  Acquisition Transaction  other
    than as contemplated by the Merger Agreement or the Stock Option Agreement;

        (ii)  Any  person  other  than  FBS  or  a  subsidiary  of  FBS acquires
    beneficial ownership (as defined under Section 13(d) of the Exchange Act) or
    the right to acquire beneficial ownership of 10% or more of the  outstanding
    shares of FirsTier Common Stock;

       (iii)  The shareholders  of FirsTier  have not  approved the transactions
    contemplated  by  the  Merger  Agreement  at  the  Special  Meeting  or  any
    adjournment  thereof, or such meeting has not been held or has been canceled
    prior to  termination  of  the  Merger  Agreement,  in  either  case,  after
    FirsTier's  Board  of  Directors  has  withdrawn  or  modified  (or publicly
    announced its intention to withdraw or modify or interest in withdrawing  or
    modifying)  its recommendation that the shareholders of FirsTier approve the
    transactions contemplated  by  the  Merger Agreement,  or  FirsTier  or  any
    FirsTier  subsidiary, without  having received FBS's  prior written consent,
    has authorized, recommended, proposed  (or publicly announced its  intention
    to  authorize, recommend or propose or interest in authorizing, recommending
    or proposing) an agreement to engage in an Acquisition Transaction with  any
    person other than FBS or an FBS subsidiary;

       (iv)  Any person other than FBS or a  subsidiary of FBS makes a bona fide
    proposal to  FirsTier  or  its  shareholders to  engage  in  an  Acquisition
    Transaction;

        (v) FirsTier has willfully breached any covenant or obligation contained
    in  the  Merger  Agreement in  anticipation  of engaging  in  an Acquisition
    Transaction, and such breach entitles FBS to terminate the Merger Agreement;
    or

       (vi) Any person  other than FBS  or a  subsidiary of FBS,  other than  in
    connection  with  a transaction  to which  FBS has  given its  prior written
    consent, files an application  or notice with the  Federal Reserve Board  or
    other  federal or  state bank  regulatory authority,  which is  accepted for
    processing, for approval to engage in an Acquisition Transaction.

As used in the Stock Option Agreement, the term "Acquisition Transaction"  means
(a)  a merger or consolidation or any similar transaction, involving FirsTier or
any "significant subsidiary" (as defined  in accounting rules of the  Securities
and Exchange Commission) of FirsTier, (b) a purchase, lease or other acquisition
of  all or substantially all  of the assets or deposits  of FirsTier or any such
significant subsidiary  or (c)  a purchase  or other  acquisition (including  by
merger,  consolidation, share exchange or  otherwise) of securities representing
10% or more of the voting power of FirsTier or any such significant subsidiary.

    The Stock Option Agreement defines the term "Subsequent Triggering Event" to
mean any of  the following events  or transactions: (i)  The acquisition by  any
person  of beneficial ownership of 20% or  more of the then outstanding FirsTier
Common Stock  or  (ii) FirsTier  or  any  of its  subsidiaries,  without  having
received the prior written consent of FBS, enters into an agreement to engage in
an  Acquisition Transaction with  any person other  than FBS or  a subsidiary of
FBS, or the FirsTier  Board of Directors  recommends that FirsTier  shareholders
approve  or accept any Acquisition Transaction other than as contemplated by the
Merger Agreement; provided, that for  purposes of the definition of  "Subsequent
Triggering Event," the percentage referred to in clause (c) of the definition of
"Acquisition Transaction" above shall be 20% rather than 10%.

    The  Stock Option Agreement defines the term "Exercise Termination Event" to
mean any of (i) the time the  Merger becomes effective, (ii) termination of  the
Merger  Agreement in accordance with its  provisions, if such termination occurs
prior to the occurrence of an Initial Triggering Event,

                                       41
<PAGE>
or (iii)  the  passage  of  18 months,  subject  to  certain  extensions,  after
termination  of  the  Merger  Agreement  under  certain  circumstances  if  such
termination follows the occurrence of an Initial Triggering Event.

    If the Option becomes exercisable, it may  be exercised in whole or in  part
upon  written  notice  from  FBS  within  12  months  following  the  applicable
Subsequent Triggering  Event. FBS's  right to  exercise the  Option and  certain
other  rights under the Option Agreement are subject to an extension in order to
obtain required  regulatory  approvals  and comply  with  applicable  regulatory
waiting  periods and to avoid liability under Section 16(b) of the Exchange Act.
The Option Price will be reduced if FirsTier issues or agrees to issue shares of
FirsTier Common Stock (other than pursuant to certain disclosed options,  rights
or  plans) at  a price less  than the then  current Option Price  to such lesser
price, and the Option Price and the  number of shares issuable under the  Option
are subject to adjustment in the event of specified changes in the capital stock
of FirsTier.

    Upon the occurrence of a Subsequent Triggering Event that occurs prior to an
Exercise  Termination Event, FBS will  have the right for  12 months (subject to
extension as described in  the Stock Option Agreement)  to demand that  FirsTier
register  the shares of FirsTier Common Stock issued or issuable pursuant to the
Option  under  the   Securities  Act,  subject   to  specified  conditions   and
limitations.  The Stock Option Agreement grants two such demand registrations to
FBS and provides that FirsTier will bear the costs of such demand registrations.

    The Stock Option  Agreement also  provides that if  a Subsequent  Triggering
Event  occurs  prior to  an Exercise  Termination  Event, upon  notice delivered
within 12  months  (subject  to  extension as  described  in  the  Stock  Option
Agreement)  of the Subsequent  Triggering Event, FirsTier  shall be obligated to
repurchase all or  any part  of the Option  and all  or any part  of the  shares
received  upon exercise  of the  Option or any  part ("Option  Shares") from the
holder thereof. Such repurchase for the Option or  any part of it shall be at  a
price  equal to the amount by which  the "market/offer price" (as defined below)
exceeds the Option  exercise price (as  adjusted), multiplied by  the number  of
shares  for  which the  Option  may then  be  exercised, plus  certain  of FBS's
expenses  in  connection  with  the  transactions  contemplated  by  the  Merger
Agreement.  Such repurchase for any  Option Shares shall be  at a price equal to
the "market/offer  price"  multiplied by  the  number  of Option  Shares  to  be
repurchased,  plus certain of FBS's expenses in connection with the transactions
contemplated by the Merger Agreement.  The term "market/offer price" is  defined
to  mean the highest  of (i) the price  per share at which  a tender or exchange
offer has been  made for  FirsTier Common  Stock, (ii)  the price  per share  of
FirsTier  Common Stock that any  third party is to  pay pursuant to an agreement
with FirsTier, (iii) the  highest closing price per  share within the  six-month
period immediately preceding the date that notice to repurchase is given or (iv)
in  the event  of a  sale of all  or substantially  all of  FirsTier's assets or
deposits, the sum  of the net  price paid for  such assets or  deposits and  the
current  market value of the remaining net assets (as determined by a nationally
recognized investment banking firm), divided by the number of shares of FirsTier
Common Stock outstanding at the time of such sale.

    Pursuant to the  terms of  the Stock Option  Agreement, in  the event  that,
prior   to  an  Exercise   Termination  Event,  FirsTier   enters  into  certain
transactions in  which  FirsTier  is  not  the  surviving  corporation,  certain
fundamental changes in the capital stock of FirsTier occur or FirsTier sells all
or  substantially  all  of its  or  certain subsidiaries  assets,  the agreement
governing such  transaction  shall provide  for  the issuance  of  a  substitute
option,  with similar  terms as  the Option,  to purchase  capital stock  of the
entity that is the effective successor to FirsTier.

    The Stock Option Agreement provides that neither FBS nor FirsTier may assign
any of its  rights or  obligations thereunder or  under the  Option without  the
written consent of the other party, except that if a Subsequent Triggering Event
occurs  prior to an Exercise Termination  Event, FBS may, subject to limitations
contained in the Stock Option Agreement, assign its rights and obligations under
the Stock Option Agreement in whole or  in part within 12 months following  such
Subsequent  Triggering Event  (subject to  extension as  described in  the Stock
Option Agreement); provided, that

                                       42
<PAGE>
until 30 days after the Federal Reserve Board approves the application by FBS to
acquire shares subject to the  Option, FBS may not  assign its rights under  the
Option  except in  (i) a  widely dispersed  public distribution,  (ii) a private
placement in which no  one party acquires  the right to  purchase more than  two
percent  of the voting shares of FirsTier, (iii) an assignment to a single party
(e.g., a broker  or investment banker)  for the purpose  of conducting a  widely
dispersed  public distribution on FBS's behalf or (iv) any other manner approved
by the Federal Reserve Board.

    The foregoing provisions of the Stock  Option Agreement may have the  effect
of  discouraging competing offers to acquire or merge with FirsTier. To the best
knowledge of FirsTier and FBS, no event giving rise to the right to exercise the
Option has occurred as of the date of this Proxy Statement/Prospectus.

CONDUCT OF FIRSTIER BUSINESS PENDING THE MERGER

    The Merger Agreement provides that from the date of the Merger Agreement  to
the  Effective Date, unless FBS shall otherwise agree in writing or as otherwise
contemplated or permitted by the Merger Agreement:

        (i) FirsTier  will  not  declare  or  pay  any  dividends  or  make  any
    distributions  on  shares of  FirsTier Common  Stock, except  cash dividends
    which shall be equal to  either (a) $.30 per share  per quarter or (b)  that
    amount  per share per  quarter calculated by multiplying  the amount paid by
    FBS on each share of  FBS Common Stock for  such quarter times the  exchange
    ratio  set forth  in the Merger  Agreement, provided that  no such dividends
    will be declared in the quarter in which the Effective Date shall occur;

        (ii) FirsTier will not issue,  sell, grant any warrant, option,  phantom
    stock  option, stock  appreciation right or  commitment of any  kind for, or
    related to,  or  acquire for  value,  any shares  of  its capital  stock  or
    otherwise  effect any change  in connection with  its equity capitalization,
    except pursuant  to certain  arrangements set  forth on  a schedule  to  the
    Merger Agreement and except pursuant to the Stock Option Agreement;

       (iii)  FirsTier will  carry on its  businesses in  substantially the same
    manner as  previously conducted,  keep in  full force  and effect  insurance
    comparable  in amount and scope  of coverage to that  maintained by it as of
    the date of the Merger  Agreement and use its  best efforts to maintain  and
    preserve  its business  organization intact,  except as  contemplated by the
    Merger Agreement;

       (iv) neither FirsTier nor any of its subsidiaries will (a) enter into any
    new line of business or incur or agree to incur any obligation or  liability
    except  liabilities  and  obligations (including  corporate  debt issuances)
    incurred in the ordinary  course of business, except  as may be directed  by
    any  regulatory  agency; (b)  except as  may be  directed by  any regulatory
    agency, change  its  or  its subsidiaries'  lending,  investment,  liability
    management  and other material banking policies in any material respect; (c)
    except in  the  ordinary  course  of  business  and  consistent  with  prior
    practice,  grant any  general or  uniform increase  in the  rates of  pay of
    employees; (d) establish  any new  employee benefit  plan or  bonus plan  or
    arrangement,  or  amend  any  existing employee  benefit  or  bonus  plan or
    arrangement (except as required by law);  (e) incur or commit to any  single
    or  group of  related capital  expenditures or  commitment therefor  with an
    aggregate market value  in excess  of $250,000  other than  in the  ordinary
    course  of business (which will in no event include the establishment of new
    branches and other facilities or any capital expenditures for such purpose);
    or (f) merge into,  consolidate with or permit  any other corporation to  be
    merged or consolidated with it or any of its subsidiaries or acquire outside
    of the ordinary course of business part of or all the assets or stock of any
    other corporation or person;

        (v)  FirsTier  will  not  change its  or  its  subsidiaries'  methods of
    accounting in effect at December 31, 1994, except as required by changes  in
    generally  accepted accounting principles  as concurred in  by Ernst & Young
    LLP,  or   change   any   of   its   methods   of   reporting   income   and

                                       43
<PAGE>
    deductions  for  Federal  income tax  purposes  from those  employed  in the
    preparation of FirsTier's Federal income  tax returns for the taxable  years
    ending December 31, 1993 and 1994, except as required by changes in law;

       (vi)  FirsTier  will  promptly  advise FBS  in  writing  of  all material
    corporate actions taken by  the directors and  shareholders of FirsTier  and
    furnish  FBS  with  copies  of  all  monthly  and  other  interim  financial
    statements of FirsTier as they become available;

       (vii) FirsTier, its subsidiaries and their respective officers, directors
    and employees will not contract for  or acquire, at the expense of  FirsTier
    or  any of  its subsidiaries, a  policy or policies  providing for insurance
    coverage for directors,  officers and/or  employees of  FirsTier and/or  its
    subsidiaries  for any  period subsequent  to the  Effective Date  for events
    occurring before  or  after  the Effective  Date;  provided,  however,  that
    FirsTier  may renew,  extend or  replace existing  policies in  the ordinary
    course consistent with past  practices for periods of  not greater than  one
    year;

      (viii)  neither FirsTier  nor any of  its subsidiaries  shall, directly or
    indirectly, amend  or propose  to  amend its  Articles of  Incorporation  or
    Bylaws;

       (ix)  neither FirsTier  nor any of  its subsidiaries  shall sell, assign,
    transfer, mortgage or  pledge any  of its  assets with  an aggregate  market
    value  in excess of $200,000, except (a) in the ordinary course of business,
    including REO, (b) liens and encumbrances for current property taxes not yet
    due and  payable and  (c) liens  and encumbrances  which do  not  materially
    affect  the value of, or interfere with the past or future use or ability to
    convey, the property subject thereto or affected thereby;

        (x) neither FirsTier nor  any of its subsidiaries  shall enter into  any
    settlement  or similar  agreement involving  payments of  more than $250,000
    with respect to any action, suit, proceeding, order or investigation or take
    any other significant  action with  respect to  the conduct  of any  action,
    suit,  proceeding, order  or investigation to  which FirsTier or  any of its
    subsidiaries is a  party or becomes  a party  after the date  of the  Merger
    Agreement, in each case without prior consultation with FBS; and

       (xi)  neither FirsTier nor any of its  subsidiaries shall agree to do any
    of the foregoing.

    Pursuant to the Merger Agreement, FirsTier also is required to take  certain
affirmative  actions  at or  before the  Effective  Date. These  include certain
specified actions with respect to its  employee benefit and stock option  plans,
see  "-- Effect on FirsTier Employee Benefit  Plans and Stock Option Plans." The
Merger Agreement also prevents FirsTier  from negotiating for an acquisition  of
FirsTier  by  any  other party,  subject  to  specified exceptions,  see  "-- No
Solicitation," and from taking any action which would disqualify the Merger as a
"reorganization" that would be tax-free to shareholders of FirsTier pursuant  to
Section  368(a) of the Code, see "--  Certain Federal Income Tax Consequences to
FirsTier Shareholders." The Merger Agreement  provides that, subject to  certain
conditions,   FirsTier  will,  consistent  with  generally  accepted  accounting
principles, establish such additional accruals and reserves as may be  necessary
to  conform FirsTier's accounting and credit  loss reserve practices and methods
to those of  FBS, to reflect  the plans of  FBS with respect  to the conduct  of
FirsTier's  business following the  Merger and to provide  for certain costs and
expenses relating to the Merger. In addition, the Merger Agreement provides that
FirsTier will use reasonable efforts to  cause its existing customer data  files
and  records to be in such format, as  of the Effective Date, as is necessary to
allow the then  existing FBS  loan and  deposit application  systems to  process
FirsTier's   customer  data.   See  Unaudited   Pro  Forma   Combined  Financial
Information.

MANAGEMENT AND OPERATIONS OF FIRSTIER FOLLOWING THE MERGER

    The officers and directors of  FBS prior to the  Effective Date will be  the
officers and directors of FBS, as the surviving corporation in the Merger, after
the  Effective Date. First Bank Omaha,  Southwest Bank and the Nebraska branches
of First Bank, fsb are  expected to be merged in  November 1995 to become  First
Bank  National Association  ("First Bank  Nebraska"); FirsTier  Omaha will merge
into

                                       44
<PAGE>
First Bank Nebraska (the  "Bank Merger"). The Bank  Merger is expected to  occur
within  one  month  of the  Effective  Date,  assuming receipt  of  all required
regulatory approvals. FBS anticipates that significant cost savings will  result
from FirsTier's inclusion in the FBS enterprise. These cost savings are expected
to  result from personnel reductions,  branch and operational consolidations and
general reductions  in  corporate  and  administrative  support  functions.  FBS
expects  cost savings of approximately  30% of FirsTier's non-interest operating
expenses in the first  year of combined operations.  The operating cost  savings
are  expected to be achieved in various amounts during the periods following the
Merger and not ratably over, or at the beginning or end of, such periods.  There
can be no assurance that the expected cost savings or effect on earnings will be
realized or that they will be realized in the period discussed.

    FBS  anticipates converting  FirsTier's data processing  systems and product
application systems  to  its  systems  soon  after  the  Effective  Date.  After
conversion  of the  data processing  and product  systems, FBS  plans to rapidly
introduce its  standardized  products  into  the  FirsTier  branch  network.  In
addition,  all back  office administrative  and support  functions will  also be
centralized shortly after the systems conversion.

INTERESTS OF CERTAIN PERSONS IN THE MERGER

    CHANGE OF CONTROL  BONUS POOL PLAN.   Under the  FirsTier Change of  Control
Bonus  Pool Plan, adopted in May 1995,  on the business day immediately prior to
the day set for the closing of certain types of mergers (including the  Merger),
FirsTier  is required to contribute to a  Change of Control Bonus Pool an amount
determined in accordance with the formula set forth in such plan. The amount  to
be  contributed  to the  Change of  Control Bonus  Pool  is equal  to 4%  of the
following: the dollar  amount by which  the price  per share to  be realized  by
FirsTier's  shareholders at  the time of  the date  set for closing  of a merger
exceeds a price  designated by the  chairman of the  executive committee of  the
FirsTier  board of directors by  reference to the fair  market value of FirsTier
Common Stock following execution of an agreement to merge (the "Strike  Price"),
multiplied  by the number  of shares of FirsTier  Common Stock then outstanding.
The Strike Price is $32. Such plan is administered by the executive committee of
FirsTier's board of  directors, and  bonuses are determined  by such  committee.
Notwithstanding  the terms of the  plan set forth above,  in November 1995, with
the consent of FBS, the executive committee  set the bonus pool at $7.0  million
and  made  certain  of  the  bonus payments  in  1995.  Such  payments  were not
contingent upon consummation of the Merger  and are subject to reimbursement  by
FBS in the event that the Merger is not consummated. The following payments were
made to executive officers of FirsTier pursuant to the Plan: David A. Rismiller,
$3,200,000; Jack R. McDonnell, $1,920,000; and Aaron C. Hilkemann, $250,000.

    SEVERANCE  AGREEMENT.   Effective as of  January 26,  1993, FirsTier entered
into letter agreements  relating to  severance with certain  employees. Such  an
agreement  was entered into with Aaron C. Hilkemann, Vice President and Director
of Financial Operations  of FirsTier  (the "Severance  Agreement"), pursuant  to
which Mr. Hilkemann is entitled to receive certain benefits if his employment is
terminated  at any time within one year  after a "change of control" (as defined
in the  Severance  Agreement  and which  would  include  the Merger)  or  if  he
voluntarily  resigns within the first six months after the change of control. In
the event Mr.  Hilkemann is terminated  by FirsTier or  its successor, he  would
receive  a cash payment  in an amount equal  to one times the  sum of his annual
base salary for the  fiscal year in  which such change  of control is  effective
plus  one times his annual  cash bonus for the preceding  fiscal year plus a pro
rata amount  of such  base salary  and bonus  based upon  the number  of  months
remaining  from the  date of  termination through  the first  anniversary of the
change in control. In the event Mr. Hilkemann resigns within six months of  such
change  of control, he  would receive a cash  payment in an  amount equal to the
amount he would receive if terminated, except he would receive one and one  half
times  his annual cash bonus for the  preceding year, rather than one times such
cash bonus. Such  cash payments  are payable  either in a  lump sum  or, at  Mr.
Hillkemann's  election, in  12 equal  monthly payments.  The Severance Agreement
also provides that  in the  event Mr.  Hilkemann's employment  with FirsTier  is
terminated  or Mr. Hilkemann  resigns, he would  be entitled to  (a) continue to
participate  in   the   group   health  plans   maintained   by   FirsTier   (or

                                       45
<PAGE>
reimburse his premium payments for plans providing equivalent benefits) until he
becomes  covered under another group health plan which does not exclude coverage
on account  of  a  pre-existing  condition,  and  (b)  reduction  in  force  and
termination  benefits,  monetary  or  otherwise  (including  monetary  payments,
payment for accrued vacation, outplacement services, temporary office space  and
telephone). The Severance Agreement permits payments under other severance plans
of  FirsTier, if applicable.  In connection with  the anticipated termination of
Mr. Hilkemann's employment at the time of the Merger, FirsTier made a payment of
approximately $932,000  in  December 1995  in  full satisfaction  of  FirsTier's
obligations under the Severance Agreement. Such amount includes the payment made
to  Mr. Hilkemann under the  Change of Control Bonus  Pool Plan described above.
Such payment was  not contingent  upon consummation of  the Merger,  and FBS  is
required  to reimburse FirsTier for such payment in the event that the Merger is
not consummated.

    EMPLOYMENT AGREEMENT  WITH  DAVID A.  RISMILLER.   In  connection  with  the
execution  of the Merger Agreement, David  A. Rismiller, Chairman, President and
Chief Executive Officer  of FirsTier,  and FirsTier entered  into an  employment
agreement dated August 4, 1995. Such agreement is in addition to Mr. Rismiller's
employment agreement with FirsTier dated March 20, 1995 (the "Prior Agreement").
The agreement provides for an employment period commencing on the Effective Date
and  ending on December 31, 1996. Under  the agreement, Mr. Rismiller will serve
as Chairman and  Chief Executive  Officer of First  Bank Nebraska  at an  annual
salary  of $350,000.  In addition, he  will receive health,  welfare and similar
benefits similar  to  those provided  to  other executives,  continuation  of  a
disability  income  policy  and  continuation of  certain  fringe  benefits. The
agreement provides for certain payments under  the Change of Control Bonus  Pool
Plan, which have been satisfied by the payment to Mr. Rismiller set forth in the
description  of such plan appearing above. The agreement also provides that upon
consummation  of  the  Merger,  Mr.  Rismiller  shall  immediately  receive  the
termination  benefit provided by the Prior Agreement as if he had beenterminated
by  FirsTier  (or  its  successor)  as   a  result  of  a  change  in   control.
Notwithstanding  the terms of the agreement,  in satisfaction of the termination
payment amount under the Prior Agreement  that was to be made upon  consummation
of  the Merger,  the payment  under the  Change of  Control Bonus  Pool Plan (as
described above) and certain other arrangements entered into with the consent of
FBS, Mr. Rismiller  received cash  payments in  December 1995  and January  1996
totaling approximately $6,298,000. Such payments are subject to reimbursement by
FBS  in  the  event that  the  Merger  is not  consummated.  If  Mr. Rismiller's
employment is terminated  without "cause"  prior to  the end  of the  employment
period  under  the agreement,  he  shall be  entitled  to receive  a termination
payment equal to the balance of his  annual salary that would be payable had  he
continued  employment through  the end  of the  calendar year  during which such
termination occurs. "Cause" is  defined in the agreement  to be conviction of  a
felony involving moral turpitude or conduct willfully injurious to the employer.
The  agreement  also provides  for certain  retirement  and other  benefits upon
termination  of  employment   for  any  reason,   including  benefits  under   a
supplemental  executive retirement plan and an executive death benefit plan. The
agreement  permits  payments  under  other  severance  plans  of  FirsTier,   if
applicable.  Pursuant to the agreement, Mr.  Rismiller will receive a "gross-up"
payment which, net of all  tax, is sufficient to pay  any excise tax on  "excess
parachute" payments received by him.

    EMPLOYMENT  AGREEMENT WITH  JACK R.  MCDONNELL.   Jack R.  McDonnell, former
Executive Vice President and Chief  Executive Officer of FirsTier, entered  into
an  employment  agreement  with FirsTier  dated  March 20,  1995.  Mr. McDonnell
resigned from  his positions  with  FirsTier, effective  November 30,  1995,  in
connection  with the  Merger. FirsTier and  Mr. McDonnell entered  into a letter
agreement regarding the payments to be  received by Mr. McDonnell in  connection
with  his resignation in satisfaction of FirsTier's obligations, including under
Mr. McDonnell's  employment  agreement.  In satisfaction  of  such  obligations,
FirsTier  has made a payment to Mr. McDonnell  in November 1995 in the amount of
$3,948,350. Such amount  includes the payment  made to Mr.  McDonnell under  the
Change  of  Control  Bonus  Pool  Plan  described  above.  Such  payment  is not
contingent upon consummation of  the Merger and is  subject to reimbursement  by
FBS  if the Merger is not consummated.  Pursuant to the Agreement, Mr. McDonnell
will be reimbursed for any excise taxes he incurs

                                       46
<PAGE>
on account of  payments relating to  a change  in control and  for income  taxes
incurred on account of the reimbursement for such excise taxes. In addition, Mr.
McDonnell is entitled to benefits under a supplemental executive retirement plan
and an executive death benefit plan.

    DIRECTORS'  AND  OFFICERS' INSURANCE;  LIMITATION  OF LIABILITY  OF FIRSTIER
DIRECTORS AND OFFICERS. The Merger Agreement requires that, for a period of five
years after the Effective Date, FBS shall  use its best efforts to provide  that
portion of directors' and officers' liability insurance that serves to reimburse
officers  and directors of FirsTier  (as opposed to FBS)  with respect to claims
against such officers and directors arising from facts or events which  occurred
before  the  Effective Date  of  at least  the  same coverage  and  amounts, and
containing terms and conditions no less advantageous, as that coverage currently
provided by  FirsTier,  subject to  certain  requirements and  limitations.  The
Merger  Agreement  also  requires FBS,  for  a  period of  six  years  after the
Effective  Date,  to  indemnify  present  and  former  officers,  directors  and
employees  of FirsTier (including  its subsidiaries) against  certain losses and
other expenses in connection with claims which arise out of such persons' having
served in such capacities and pertain  to matters or facts arising, existing  or
occurring   before  the  Effective  Date  (including,  without  limitation,  the
transactions contemplated by the Merger Agreement).

    FIRSTIER EQUITY-BASED INCENTIVE AWARDS.  Pursuant to the terms of FirsTier's
stock-based option and  incentive plans,  on the Effective  Date, each  FirsTier
stock  option held by active employees  shall become immediately exercisable and
all restrictions with respect to  restricted stock will automatically lapse.  On
November  29, 1995, all  stock options granted to  certain officers of FirsTier,
including  Messrs.  Rismiller,  McDonnell  and  Hilkemann,  were  deemed  to  be
immediately exercisable by a committee of the FirsTier Board of Directors.

    The foregoing interests of members of management or shareholders of FirsTier
in  the Merger may mean that such  persons have personal interests in the Merger
which may not be identical to the interests of nonaffiliated shareholders.

EFFECT ON FIRSTIER EMPLOYEE BENEFIT PLANS AND STOCK OPTION PLANS

    After the Effective  Date, the  current employee benefit  plans of  FirsTier
will  continue in  force until  amended or  terminated in  accordance with their
terms. Notwithstanding the  foregoing, the  Merger Agreement  provides that  FBS
will  have the right, after the Effective  Date, to continue, amend or terminate
any such plans in  accordance with the terms  thereof and subject to  applicable
law.

    STOCK  OPTIONS.   On  the Effective  Date,  and to  the extent  permitted by
applicable plans and agreements, each  outstanding option to purchase shares  of
FirsTier  Common Stock  (a "Stock Option")  issued pursuant to  the stock option
plans listed in a schedule to the Merger Agreement (collectively, the  "FirsTier
Stock  Option Plans") shall be assumed by  FBS and shall thereafter be deemed to
constitute an  option to  acquire, on  the  same terms  and conditions  as  were
applicable  under such option, the same number  of shares of FBS Common Stock as
the holder of such option  would have been entitled  to receive pursuant to  the
Merger  had such holder exercised  such option in full  immediately prior to the
Effective Date, at a price per share  equal to (x) the aggregate exercise  price
for  the shares of FirsTier Common  Stock otherwise purchasable pursuant to such
option divided by  (y) the  number of  full shares  of FBS  Common Stock  deemed
purchasable  pursuant to such option; provided, however, that in the case of any
option to which Section 421 of the  Code applies by reason of its  qualification
under  Section  422  of  the  Code,  the  option  price,  the  number  of shares
purchasable pursuant to such option and the terms and conditions of exercise  of
such  options shall be determined in order  to comply with Section 424(a) of the
Code. Pursuant to the terms of the FirsTier Stock Option Plans, all outstanding,
unvested options to purchase FirsTier  Common Stock will vest upon  consummation
of the Merger. Additionally, equity-based awards to certain officers of FirsTier
were  vested by  action of  a committee  of the  FirsTier Board  of Directors on
November 29, 1995.

    401(K) PLAN.  The Merger Agreement provides that within two years after  the
Effective Date, FBS will terminate the accrual of benefits under FirsTier 401(k)
plans  and will take  such actions as may  be necessary to  cause the assets and
liabilities  of   such   plans   to   be  merged   with   and   into   the   FBS

                                       47
<PAGE>
401(k) plan (the "Capital Accumulation Plan"). All contributions to the FirsTier
401(k)  plans after the Effective Date and prior to the date on which accrual of
benefits is  terminated shall  be immediately  and fully  vested.  Distributions
shall  not be  permitted from  the FirsTier 401(k)  plans merely  because of the
discontinuance of contributions or the transfer of assets and liabilities to the
Capital Accumulation Plan. FBS is also required  to take such actions as may  be
necessary   to  cause  eligible  FirsTier   employees  to  become  qualified  to
participate in the Capital Accumulation Plan  concurrent with the date that  FBS
causes  accruals  to cease  under the  FirsTier 401(k)  plans. All  service with
FirsTier (whether before or after the  Effective Date) since an employee's  most
recent  date of hire shall be recognized under the Capital Accumulation Plan for
eligibility and vesting purposes  but shall not  be recognized for  contribution
and  allocation purposes.  FBS shall  take such actions  as may  be necessary to
cause  the  Capital  Accumulation  Plan  to  accept  transfers  of  assets   and
liabilities from the FirsTier 401(k) plan.

    OTHER  BENEFITS.  The Merger Agreement provides that, at such time following
the Effective Date as  FBS shall determine,  FBS shall use  its best efforts  to
cause  FirsTier  employees to  be  covered by  the  welfare and  other generally
applicable benefit plans and practices of FBS, provided that during any  interim
period,  FBS shall not be obligated to  continue any particular welfare or other
benefit plans or practices of FirsTier applicable to FirsTier employees.

NO DISSENTERS' RIGHTS FOR FIRSTIER SHAREHOLDERS

    Section 138(3)  of  the  Nebraska  Business  Corporation  Act  (the  "NBCA")
provides  that the rights of  shareholders to dissent and  obtain payment of the
"fair value"  of their  shares in  the  event of  a merger  shall not  apply  to
shareholders  of, among other entities, a bank holding company such as FirsTier.
SHAREHOLDERS WILL NOT BE  ELIGIBLE TO USE THE  DISSENTERS' RIGHTS PROVISIONS  OF
THE NBCA IN CONNECTION WITH THE MERGER, AND WILL BE REQUIRED TO ACCEPT SHARES OF
FBS  COMMON  STOCK IN  EXCHANGE FOR  THEIR  SHARES OF  FIRSTIER COMMON  STOCK AS
PROVIDED IN THE MERGER AGREEMENT IF THE MERGER IS APPROVED AND CONSUMMATED.

CERTAIN FEDERAL INCOME TAX CONSEQUENCES TO FIRSTIER SHAREHOLDERS

    FirsTier  expects  that   the  Merger   will  be  treated   as  a   tax-free
reorganization  within the meaning of Section  368(a)(1)(A) of the Code and that
for federal  income tax  purposes no  gain or  loss will  be recognized  by  any
shareholder of FirsTier upon the receipt of FBS Common Stock for FirsTier Common
Stock  pursuant to the Merger. Gain will  be recognized upon the receipt of cash
in lieu of fractional shares of  FBS Common Stock. The Internal Revenue  Service
(the  "Service")  has not  been  and will  not  be asked  to  rule upon  the tax
consequences of the  Merger. Instead,  FirsTier will  rely upon  the opinion  of
Wachtell,  Lipton,  Rosen &  Katz, its  special counsel,  as to  certain federal
income tax consequences of the Merger. The opinion of Wachtell, Lipton, Rosen  &
Katz  is based upon facts described herein and upon certain representations made
by FirsTier and FBS. The opinion of Wachtell, Lipton, Rosen & Katz is also based
upon the  Code, Regulations  now in  effect thereunder,  current  administrative
rulings  and  practice, and  judicial  authority, all  of  which are  subject to
change. An opinion of counsel is not binding on the Service and there can be  no
assurance,  and none is hereby given, that  the Service will not take a position
contrary to one or more positions reflected  herein or that the opinion will  be
upheld  by the  courts if  challenged by  the Service.  EACH HOLDER  OF FIRSTIER
COMMON STOCK IS URGED TO CONSULT HIS OR HER OWN TAX AND FINANCIAL ADVISORS AS TO
THE EFFECT OF SUCH FEDERAL INCOME TAX CONSEQUENCES ON HIS OR HER OWN  PARTICULAR
FACTS  AND CIRCUMSTANCES AND ALSO  AS TO ANY STATE,  LOCAL, FOREIGN OR OTHER TAX
CONSEQUENCES ARISING OUT OF THE MERGER.

    Based upon the  facts and  representations provided  to it,  and subject  to
various  assumptions and  qualifications, FirsTier  has received  the opinion of
Wachtell,  Lipton,  Rosen  &  Katz   that  the  following  federal  income   tax
consequences will result from the Merger:

        (a)  The Merger will qualify as  a "reorganization" under Section 368(a)
    of the Code;

                                       48
<PAGE>
        (b) No  gain or  loss will  be recognized  by any  FirsTier  shareholder
    (except  in connection  with the  receipt of cash)  upon the  receipt of FBS
    Common Stock for FirsTier Common Stock in the Merger;

        (c) The basis of the FBS Common Stock received by a FirsTier shareholder
    who exchanges FirsTier Common Stock for FBS Common Stock will be the same as
    the basis  of the  FirsTier Common  Stock surrendered  in exchange  therefor
    (subject  to any adjustments  required as the  result of receipt  of cash in
    lieu of a fractional share of FBS Common Stock);

        (d) The holding period  of the FBS Common  Stock received by a  FirsTier
    shareholder  will include the period during  which the FirsTier Common Stock
    surrendered in exchange therefor was held (provided that the FirsTier Common
    Stock of  such FirsTier  shareholder was  held  as a  capital asset  at  the
    Effective Date); and

        (e)  Cash received  by a  FirsTier shareholder  in lieu  of a fractional
    share interest of FBS Common Stock  will be treated as having been  received
    as  a  distribution in  full payment  in exchange  for the  fractional share
    interest of  FBS Common  Stock  which such  shareholder would  otherwise  be
    entitled  to receive,  and will  generally qualify  as capital  gain or loss
    (assuming  the  FirsTier  Common   Stock  was  a   capital  asset  in   such
    shareholder's hands at the Effective Date).

    The  foregoing is a  description of the  material anticipated federal income
tax consequences  of the  Merger, without  regard to  the particular  facts  and
circumstances  of the tax situation of each shareholder of FirsTier. It does not
discuss all of the consequences that may be relevant to shareholders of FirsTier
entitled to  special treatment  under  the Code  (such as  insurance  companies,
dealers   in  securities,  exempt  organizations   or  foreign  persons)  or  to
shareholders of FirsTier who  acquired their FirsTier  Common Stock pursuant  to
the exercise of employee stock options or otherwise as compensation. The summary
set  forth above does not purport to be a complete analysis of all potential tax
effects of the transactions contemplated by  the Merger Agreement or the  Merger
itself.  No information is provided herein with respect to the tax consequences,
if any, of the Merger under state, local, foreign or other tax laws.

STOCK EXCHANGE LISTING OF FBS COMMON STOCK

    It is anticipated  that FBS will  file a listing  application with the  NYSE
covering  the  shares of  FBS  Common Stock  which  are issuable  and  that such
application will be  approved subject  to notice of  issuance at  or before  the
Effective  Date. It  is a condition  to the  obligations of FirsTier  and FBS to
consummate the Merger  that such shares  have been approved  for listing on  the
NYSE on official notice of issuance.

RESALE OF FBS COMMON STOCK RECEIVED BY FIRSTIER SHAREHOLDERS

    The  shares of  FBS Common Stock  issuable to shareholders  of FirsTier upon
consummation of the Merger have been  registered under the Securities Act.  Such
shares  may be traded  freely without restriction by  those shareholders who are
not deemed to be  "affiliates" of FirsTier  or FBS, as that  term is defined  in
rules promulgated under the Securities Act.

    Shares  of FBS Common  Stock received by those  shareholders of FirsTier who
are deemed to be "affiliates" of FirsTier at the time of the Special Meeting may
be resold without  registration under the  Securities Act only  as permitted  by
Rule 145 under the Securities Act or as otherwise permitted under the Securities
Act.  FirsTier has  agreed in the  Merger Agreement  to use its  best efforts to
obtain and deliver to FBS  at least 31 days prior  to the Effective Date  signed
representation  letters from each shareholder of  FirsTier who may reasonably be
deemed to be an "affiliate" of FirsTier to the effect that such persons will not
offer to sell, transfer or otherwise dispose of any of the shares of FBS  Common
Stock  distributed to them pursuant to the Merger except in compliance with Rule
145, or in a transaction that, in the opinion of counsel reasonably satisfactory
to FBS, is otherwise exempt from the registration requirements of the Securities
Act, or in an offering which is registered under the Securities Act. This  Proxy
Statement/Prospectus  does not cover any resales of FBS Common Stock received by
persons who are deemed to be  "affiliates" of FirsTier. No person is  authorized
to make use

                                       49
<PAGE>
of  this Proxy Statement/Prospectus in connection  with any such resales. Former
shareholders of FirsTier who are deemed  to be "affiliates" of FirsTier and  who
surrender  certificates formerly evidencing shares of FirsTier Common Stock must
execute and deliver  to FBS  a letter containing  the representations  described
above  before any  exchange of  such certificates  for certificates representing
shares of  FBS Common  Stock will  be effected.  See "--  Surrender of  FirsTier
Common Stock Certificates."

FBS DIVIDEND REINVESTMENT AND COMMON STOCK PURCHASE PLAN

    FBS  provides eligible shareholders  with a simple  and convenient method of
investing cash dividends and optional cash payments at 100% of the average price
(as defined) in  additional shares of  FBS Common Stock  without payment of  any
brokerage  commission  or  service  charge pursuant  to  its  Automatic Dividend
Reinvestment and Common Stock  Purchase Plan. The  plan includes certain  dollar
limitations  on participation  and provides  for eligible  shareholders to elect
dividend reinvestment on only a part of  the shares registered in the name of  a
participant (while continuing to receive cash dividends on remaining shares). It
is  anticipated that the  plan will continue  after the Effective  Date and that
shareholders of FirsTier who  receive FBS Common Stock  in the Merger will  have
the right to participate therein.

ACCOUNTING TREATMENT

    The  Merger  will be  accounted  for by  FBS  under the  purchase  method of
accounting in  accordance  with  Accounting Principles  Board  Opinion  No.  16,
"Business  Combinations,"  as  amended.  Under this  method  of  accounting, the
purchase price  will be  allocated to  assets acquired  and liabilities  assumed
based  on their estimated  fair values as  of the Effective  Date. Income of the
combined company  will not  include income  or  loss of  FirsTier prior  to  the
Effective Date.

EXPENSES

    The  Merger  Agreement  provides that  all  costs and  expenses  incurred in
connection with such agreement and  the transactions contemplated thereby  shall
be paid by the party incurring such costs and expenses.

MATERIAL DIFFERENCES IN RIGHTS OF FIRSTIER SHAREHOLDERS

    The  rights of holders of FirsTier Common Stock are governed by the Articles
of  Incorporation  of   FirsTier,  as   amended  (the   "FirsTier  Articles   of
Incorporation"),  the bylaws of FirsTier (the "FirsTier Bylaws") and the laws of
the State  of Nebraska.  The rights  of  FBS shareholders  are governed  by  the
Restated  Certificate of Incorporation of FBS,  as amended (the "FBS Certificate
of Incorporation"), the bylaws  of FBS (the  "FBS Bylaws") and  the laws of  the
State  of Delaware. After the Effective Date,  the rights of holders of FirsTier
Common Stock will be governed by  the FBS Certificate of Incorporation, the  FBS
Bylaws  and the laws  of the State  of Delaware. Because  of certain differences
between Nebraska and Delaware corporate law and between the FirsTier Articles of
Incorporation and FirsTier Bylaws, on the  one hand, and the FBS Certificate  of
Incorporation  and the  FBS Bylaws,  on the  other hand,  the current  rights of
FirsTier shareholders will change significantly as  a result of the Merger;  the
following is a summary of the material differences.

    BUSINESS  COMBINATIONS  AND SUPERMAJORITY  VOTING.   Under  Delaware  law, a
corporation is  prohibited  from  engaging  in  certain  business  combinations,
including  a merger, sale of substantial assets, loan or substantial issuance of
stock, with an interested shareholder, or an interested shareholder's affiliates
and associates, for  a three-year period  beginning on the  date the  interested
shareholder  acquires  15%  or  more  of the  outstanding  voting  stock  of the
corporation. The restrictions on business combinations do not apply if the board
of directors gives prior approval to the transaction in which the 15%  ownership
level  is exceeded, the interested  shareholder acquires at one  time 85% of the
corporation's stock (excluding shares held by management or employee stock plans
in which employees  do not  have the  effective power  to tender  stock) or  the
business  combination is approved by the board  of directors and authorized at a
meeting of shareholders by the  holders of at least  66 2/3% of the  outstanding
voting  stock, excluding  shares owned  by the  interested shareholder.  The FBS
Certificate of

                                       50
<PAGE>
Incorporation  contains  provisions  that   provide  for  supermajority   voting
requirements  in connection  with certain  "Business Combinations"  or "Business
Transactions" (as defined) involving  a "Related Person"  (as defined). The  FBS
Certificate  of Incorporation contains provisions  designed primarily to address
fair price considerations,  and the required  supermajority shareholder vote  is
not  required under  certain fair  price circumstances or  if a  majority of the
"Continuing Directors"  (as  defined)  approve  the  transaction.  The  FirsTier
Articles of Incorporation contain similar provisions. The affirmative vote of at
least  80% of the outstanding shares entitled  to vote generally in the election
of directors  is required  to  approve such  a  transaction under  the  FirsTier
Articles  of Incorporation  and the  FBS Certificate  of Incorporation.  The FBS
Certificate of Incorporation also requires supermajority voting at the 80% level
to amend, add  to, alter, change  or repeal those  articles thereof relating  to
director  numbers,  filling  vacancies  on  the  board  of  directors,  director
classification and "Business Transactions."

    The Nebraska Shareholders' Protection Act contains provisions governing  the
rights  of shareholders in  the case of certain  share acquisitions and business
combinations involving public  corporations incorporated in  (or having  certain
other significant ties to) Nebraska. FirsTier is a public corporation as defined
in  such  act and,  accordingly,  is governed  by  such act's  provisions, which
generally  require  that  specific   information  delivery,  voting  and   other
procedures be followed in certain acquisitions of shares of corporations subject
to such act.

    DISSENTERS' RIGHTS.  Under Delaware law, appraisal rights are available only
in  connection  with certain  statutory  mergers or  consolidations,  unless the
certificate of incorporation grants  such rights with  respect to amendments  to
its  certificate  of incorporation,  any merger  or  consolidation in  which the
corporation is a constituent corporation, or  sales of all or substantially  all
of  the assets of a corporation. Neither the FirsTier nor the FBS Certificate of
Incorporation grants such rights. Appraisal rights under Delaware law,  however,
are  not  available  if  the  corporation's  stock  is  (prior  to  the relevant
transaction) listed  on  a  national  securities exchange  or  designated  as  a
national  market  system  security on  an  interdealer quotation  system  by the
National Association of Securities Dealers, Inc. or held of record by more  than
2,000  shareholders;  provided that,  if  the merger  or  consolidation requires
shareholders to  exchange their  stock for  anything other  than shares  of  the
surviving  or resulting corporation, shares of another corporation which will be
listed  on  a  national  securities  exchange   or  held  by  more  than   2,000
shareholders,  cash in lieu of  fractional shares of any  such corporation, or a
combination of such shares and cash, then appraisal rights will be available.

    Under Nebraska law, dissenters' rights of appraisal are not available to the
shareholders of certain  financial institutions  and holding  companies of  such
financial  institutions.  FirsTier  is  such  a  financial  institution  holding
company, and accordingly  holders of  FirsTier Common Stock  have no  dissenters
rights. See "-- No Dissenters' Rights for FirsTier Shareholders."

    PREEMPTIVE  RIGHTS.  Under Delaware law,  shareholders of a corporation have
no preemptive rights unless such rights are expressly granted in the certificate
of  incorporation.  The  FBS  Certificate  of  Incorporation  contains  no  such
provision.  Under Nebraska law, preemptive rights  are presumed unless denied in
the articles  of  incorporation. The  FirsTier  Articles of  Incorporation  deny
preemptive rights.

    AMENDMENTS  TO  CHARTER AND  BYLAWS.   Under  Delaware law,  a corporation's
certificate of  incorporation may  be  amended by  resolution  of the  board  of
directors  and  the  affirmative  vote  of the  holders  of  a  majority  of the
outstanding shares  entitled  to  vote.  Under  Nebraska  law,  amendment  of  a
corporation's  articles  of incorporation  requires the  affirmative vote  of at
least two-thirds of the shares entitled to vote. Delaware law reserves the power
to amend  or  repeal the  bylaws  exclusively  to the  shareholders  unless  the
certificate  of incorporation  confers such  power upon  the directors.  The FBS
Certificate of Incorporation  provides that  the FBS  Bylaws may  be amended  or
repealed  by  the  Board  of Directors  of  FBS,  subject to  the  power  of the
shareholders to amend  or repeal  any such change  to the  Bylaws. Nebraska  law
provides   that  a  corporation's  initial  bylaws   shall  be  adopted  by  the
shareholders but that thereafter  either the shareholders  or the directors  may
adopt, amend or repeal bylaws, except

                                       51
<PAGE>
that the directors may not amend or repeal any bylaw if it specifically provides
that  they  may not  and  the directors  may not  adopt  bylaws providing  for a
supermajority  quorum  or   supermajority  voting  except   as  required  by   a
corporation's articles of incorporation or Nebraska law.

    REMOVAL  OF  DIRECTORS.   Under the  FBS  Certificate of  Incorporation, FBS
shareholders may remove a director  only for cause upon  a majority vote of  the
shareholders.  Under Nebraska law, a vote of the holders of a majority of shares
then entitled to vote at an election of directors may remove a director with  or
without  cause, provided  that a director  may not  be removed if  the number of
votes sufficient to elect that director under cumulative voting is voted against
the director's removal  and that a  director may  only be removed  at a  meeting
called  for such purpose. The FirsTier  Articles of Incorporation do not contain
provisions with respect to removal of directors.

    SPECIAL MEETINGS OF SHAREHOLDERS.  The FirsTier Bylaws provide that  special
meetings  of FirsTier shareholders may be called by the Chairman or the Board of
Directors, and shall be called by the Chairman at the request of the holders  of
not less than 10% of the outstanding shares of FirsTier entitled to vote at such
meeting. The FBS Bylaws provide that special meetings may be called by the Board
of Directors or the Chief Executive Officer.

    QUORUM AT SHAREHOLDERS' MEETINGS.  Nebraska law provides that the holders of
a  majority of the outstanding shares entitled to vote at a meeting, represented
in person or by proxy, shall constitute a quorum for purposes of such a meeting.
The FBS Bylaws require only that the  holders of not less than one-third of  the
shares  entitled to vote  at the meeting be  present, in person  or by proxy, to
constitute a quorum.

    VOTING  RIGHTS.    Under  Delaware  law,  a  corporation's  certificate   of
incorporation  may provide for  cumulative voting in  the election of directors.
The FBS Certificate  of Incorporation  does not provide  for cumulative  voting.
Nebraska law provides for cumulative voting rights in the election of directors.

    LIMITATION  ON  PERSONAL LIABILITY  OF DIRECTORS.    The FBS  Certificate of
Incorporation provides that directors of FBS shall  not be liable to FBS or  its
shareholders  for  monetary damages  for breaches  of fiduciary  duty; provided,
however, that such liability of a director shall not be eliminated or limited to
the extent provided by applicable law under certain circumstances. The  FirsTier
Articles of Incorporation do not contain such a provision.

    INDEMNIFICATION.    The  FBS Bylaws  provide  that FBS  shall  indemnify FBS
directors, advisory directors and officers and those serving at FBS's request as
directors, advisory directors  and officers  of other  entities against  certain
expenses under certain circumstances; the indemnification of FBS employees shall
be  at the discretion of the  FBS board of directors, and  the FBS Bylaws do not
contemplate the indemnification of any other persons.

    The  FirsTier  Bylaws  provide  that  FirsTier  shall  indemnify  FirsTier's
directors,  officers or  employees and  those serving  at FirsTier's  request as
directors, officers  or employees  of other  entities against  certain  expenses
under  certain circumstances. In addition, under  Nebraska law, a corporation is
required to indemnify a  director or officer of  a corporation against  expenses
actually  and reasonably incurred  in connection with  the successful defense of
certain actions, suits, claims or proceedings.

    Under Nebraska law, any indemnification of a director, including any payment
or reimbursement of expenses, shall be  reported in writing to the  shareholders
with  the notice  of the  next shareholders' meeting  or prior  to such meeting.
Delaware law contains no such requirement.

    DIVIDENDS.  Under Delaware law, dividends may be paid out of surplus or  out
of  net  profits for  the  fiscal year  in  which the  dividend  is paid  or the
preceding fiscal year, except that  no dividends may be  paid if the capital  of
the  corporation  has been  diminished to  an amount  less than  the liquidation
preference of  outstanding  preferred  stock. Nebraska  law  allows  payment  of
dividends  except  when  the  corporation  is  insolvent  or  would  be rendered
insolvent by the payment thereof and provided that dividends in cash or property
only be paid out of unreserved and unrestricted earned surplus.

                                       52
<PAGE>
    RIGHTS PLAN.   FBS has  adopted a shareholder  rights plan,  which may  have
certain  anti-takeover effects. The terms of  the FBS rights plan are summarized
and described herein under "Description of FBS Capital Stock -- Common Stock  --
Preferred Stock Purchase Rights." FirsTier also has adopted a shareholder rights
plan, which may have certain anti-takeover effects. See "Description of FirsTier
Capital Stock."

    GENERAL.    The foregoing  discussion of  certain similarities  and material
differences between  the rights  of holders  of FirsTier  Common Stock  and  the
rights  of holders  of FBS  Common Stock under  the Articles  and Certificate of
Incorporation, respectively, and Bylaws pursuant to Delaware and Nebraska law is
only a summary  of certain  provisions and  does not  purport to  be a  complete
description  of such similarities  and differences. The  foregoing discussion is
qualified in its entirety by reference to the Nebraska Business Corporation Act,
the Delaware  General  Corporation Law,  the  common law  thereunder,  the  1995
Amendments  and the full texts of the Articles and Certificate of Incorporation,
respectively, and Bylaws of FirsTier and  FBS. Such Articles and Certificate  of
Incorporation  and Bylaws are filed or  incorporated by reference as exhibits to
the Registration Statement of which this Proxy Statement/Prospectus is a part.

                                BUSINESS OF FBS

GENERAL

    FBS is a bank holding company registered under the Bank Holding Company  Act
headquartered  in  Minneapolis, Minnesota.  As of  September  30, 1995,  FBS was
comprised of eight subsidiary banks,  a savings association and other  financial
companies  with 350 offices, located primarily in Minnesota, Colorado, Illinois,
Montana, North  Dakota,  South Dakota,  Wisconsin,  Iowa, Nebraska,  Kansas  and
Wyoming.  Through  its subsidiaries,  FBS  provides commercial  and agricultural
finance,  consumer  banking,  trust,   capital  markets,  treasury   management,
investment  management, data processing, leasing, mortgage banking and brokerage
services. At  September 30,  1995,  FBS and  its consolidated  subsidiaries  had
consolidated assets of $33.0 billion, consolidated deposits of $21.9 billion and
shareholders equity of $2.7 billion.

    The  subsidiary banks of FBS engage  in general commercial banking business,
principally in domestic markets, and  provide banking and ancillary services  to
individuals,  businesses, institutional organizations, governmental entities and
other financial institutions. The largest  subsidiary bank, First Bank  National
Association ("FBNA"), had assets of $15.4 billion at September 30, 1995.

    FBS is a legal entity separate and distinct from its banking and non-banking
affiliates.  The principal sources  of FBS's income  are dividends, interest and
fees from FBNA and  the other banking and  non-banking affiliates. The bank  and
thrift  subsidiaries of FBS  (the "Banks"), are  subject to certain restrictions
imposed by  federal  law on  any  extensions of  credit  to, and  certain  other
transactions with, FBS and certain other affiliates; and on investments in stock
or  other  securities  thereof. Such  restrictions  prevent FBS  and  such other
affiliates from borrowing from the Banks unless the loans are secured by various
types of  collateral.  Further,  such  secured  loans,  other  transactions  and
investments by any of the Banks are generally limited in amount as to FBS and as
to  each of such other affiliates to 10%  of such Bank's capital and surplus and
as to FBS and all of such other affiliates to an aggregate of 20% of such Bank's
capital and surplus. In addition, payment of dividends to FBS by the  subsidiary
banks  is subject  to ongoing  review by  regulators and  is subject  to various
statutory  limitations  and  in  certain  circumstances  requires  approval   by
regulatory authorities.

    FBS  was incorporated  under Delaware  law in 1929  and has  functioned as a
multi-bank holding company since that time. Its principal executive offices  are
located  at First  Bank Place, 601  Second Avenue  South, Minneapolis, Minnesota
55402-4302 (telephone (612) 973-1111).  For further information concerning  FBS,
see  the  FBS  documents incorporated  by  reference herein  as  described under
"Incorporation of Certain Documents by Reference."

                                       53
<PAGE>
RECENT DEVELOPMENTS

    1995 YEAR END RESULTS

    FBS reported fourth quarter 1995 net income of $150.7 million, or $1.12  per
fully  diluted  share, compared  with fourth  quarter  1994 operating  income of
$122.6 million, or $.90 per share. The reported net loss for the fourth  quarter
of  1994 (including discontinued operations  and merger-related items) was $35.3
million, or $.28 per share. Net income in 1995 was $568.1 million, or $4.11  per
fully  diluted share, compared  with $470.4 million, or  $3.32 per fully diluted
share, from continuing operations before merger-related items in 1994.  Reported
net income for 1994, including discontinued operations and merger-related items,
was $305.0 million, or $2.14 per fully diluted share.

    Return  on average assets and return on  average common equity in the fourth
quarter of 1995  were 1.80%  and 22.4%,  respectively, compared  with 1.43%  and
18.0%  in  the  fourth  quarter  of  1994,  from  continuing  operations  before
merger-related items. The net interest  margin on a taxable-equivalent basis  of
4.83% in the fourth quarter of 1995 was slightly higher than the margin of 4.79%
in  the fourth quarter of  1994. The efficiency ratio,  the ratio of expenses to
revenues, continued to improve,  to 51.2% from 57.3%  for the fourth quarter  of
1994, excluding merger-related charges.

    The  strong  fourth quarter  1995  results reflected  growth  in noninterest
income, lower  operating  expenses,  and effective  capital  management.  Fourth
quarter  noninterest income was $197.3 million, an increase of $24.7 million, or
14%, from the same quarter of 1994, excluding merger-related securities  losses.
The  improvement resulted primarily  from growth in credit  card and trust fees.
Fourth quarter 1995 noninterest  expense totaled $287.3  million, a decrease  of
$24.5  million, or 8%, from the fourth quarter of 1994. Net interest income on a
taxable-equivalent basis was $363.7 million, a  decrease of $6.5 million, or  2%
compared   with  the  fourth  quarter  of   1994.  The  decrease  was  primarily
attributable to lower total earning assets (as loan growth was more than  offset
by  sales and maturities of securities)  and higher funding costs, including the
cost of funding the buyback of  common stock, purchased primarily in  connection
with  the Merger. The  provision for credit  losses for the  quarter was up $3.5
million, or 13%, to $31.0 million from fourth quarter 1994.

    Nonperforming assets declined to $153.7  million at December 31, 1995,  down
$78.6  million, or 34%, from  $232.3 million at December  31, 1994. The ratio of
the allowance for credit losses to  nonperforming loans at quarter-end was  401%
compared with 283% at the end of 1994.

    FIRST INTERSTATE TRANSACTION

    On  November  6, 1995,  FBS  and First  Interstate  announced that  they had
entered into a definitive agreement whereby FBS will exchange 2.60 shares of FBS
Common Stock for each share of First  Interstate common stock (and cash in  lieu
of  fractional  shares)  (the  "First  Interstate  Transaction").  The  combined
institution will use the First Interstate Bancorp name, will have  approximately
$90  billion  in  assets  and  $7 billion  in  shareholders'  equity.  The First
Interstate  Transaction  will  qualify  as  a  tax-free  reorganization  and  be
accounted  for  as  a pooling  of  interests. The  previously  announced capital
management program as described  in FBS's Form 8-K  dated December 13, 1995  has
changed.  In order that the  First Interstate Transaction be  accounted for as a
pooling of  interests,  the Staff  of  the Commission  believes  that  generally
accepted  accounting principles  require FBS  to suspend  its ongoing repurchase
program for two years following consummation of such proposed merger, except for
shares reacquired  for  issuance in  connection  with stock  options  and  other
compensation  plans  and purchase  business  combinations. The  First Interstate
Transaction is subject to a number of conditions customary in such transactions,
including regulatory approvals and approval by the shareholders of each of First
Interstate and FBS.  A failure of  any such  condition to be  satisfied, if  not
waived,  would prevent consummation  of the First  Interstate Transaction. There
can be no assurance that the  First Interstate Transaction will be  consummated;
however,  the  Merger  is not  contingent  upon  the consummation  of  the First
Interstate Transaction. On November 13, 1995, following the announcement of  the
proposed  First Interstate  Transaction, Wells  Fargo &  Co. ("Wells") announced
that it intended  to commence  an unsolicited  hostile exchange  offer in  which
holders  of First Interstate common stock would  have the right to exchange each
of their shares for two-thirds of a share of Wells common stock. For  additional
information concerning the proposed First Interstate Transaction, see "Unaudited
Pro  Forma Condensed Combined Financial  Information" and the documents referred
to under "Incorporation of Certain Documents by Reference."

                                       54
<PAGE>
    First Interstate is a bank holding company registered under the Bank Holding
Company Act,  and  conducts  a  commercial banking  business  through  its  bank
subsidiaries. At September 30, 1995, First Interstate, through its 16 subsidiary
banks  (the "Subsidiary Banks"), operated approximately 1,150 banking offices in
13 states.

    At September 30,  1995, First Interstate  and its consolidated  subsidiaries
had  total assets of  $55.1 billion, consolidated deposits  of $48.2 billion and
shareholders' equity of  $4.0 billion. At  that date, First  Interstate was  the
fourteenth  largest commercial banking organization  in the United States ranked
by total assets.

    The Subsidiary  Banks  accept  checking,  savings  and  other  time  deposit
accounts  and employ these funds by making principally consumer, real estate and
commercial loans and investing in securities and other interest bearing  assets.
All  of their deposit accounts  are insured by the  FDIC, all but three exercise
trust powers, and the thirteen national banks  and one of the three state  banks
are  members of the Federal Reserve  System. The larger Subsidiary Banks provide
international banking services throughout the international departments of their
domestic offices  and through  a business  development agreement  between  First
Interstate  Bank of  California and Standard  Chartered PLC.  They also maintain
correspondent relationships with major banks throughout the world.

    First  Interstate  also  provides  banking-related  financial  services  and
products.  These include asset-based commercial  financing, asset management and
investment counseling, bank card  operations, mortgage banking, venture  capital
and  investment  products.  It  engages  in  these  activities  through non-bank
subsidiaries of  First  Interstate, through  the  Subsidiary Banks  and  through
subsidiaries of the Subsidiary Banks.

    The  largest of the Subsidiary Banks, First Interstate Bank of California, a
California  state-chartered  bank,  had  total  assets  of  approximately  $24.8
billion,  total deposits of approximately $21.2 billion and shareholder's equity
of approximately $2.0 billion at September 30, 1995.

                              BUSINESS OF FIRSTIER

    FirsTier, a  multi-bank  bank  holding company  registered  under  the  Bank
Holding  Company Act having  its principal place of  business at Seventeenth and
Farnam Streets, Omaha,  Nebraska 68102,  was incorporated in  Nebraska in  1968.
FirsTier's  wholly  owned,  consolidated, active  subsidiaries  include FirsTier
Bank, National Association, Omaha; FirsTier Bank, National Association, Lincoln;
FirsTier  Bank,   National  Association,   Norfolk;  FirsTier   Bank,   National
Association, Scottsbluff; Nevada National Bank, Nevada, Iowa; Valley State Bank,
Rock  Valley, Iowa; and Security Savings Bank, Williamsburg, Iowa; Wyoming Trust
and Management Company, a trust company; and FirsTier Insurance Inc., a  credit,
life and disability reinsurance company.

    At  September  30,  1995,  FirsTier and  its  consolidated  subsidiaries had
consolidated assets of approximately $3.6 billion, consolidated deposits of $2.8
billion, and shareholders'  equity of $376  million. Because the  banks are  the
dominant  operating  entities  of FirsTier,  FirsTier  functions  principally to
supplement the banks' activities, and related expenses of FirsTier are allocated
to the  banks. FirsTier  meets  its dividend  and working  capital  requirements
through funds primarily derived from dividends from its bank subsidiaries.

    Through its subsidiaries, FirsTier provides a broad range of commercial bank
financial  services to its local, regional and national customers including line
of credit facilities, accounts receivable,  inventory and other working  capital
financing,  sales and equipment financing,  real estate and interim construction
financing  and  cash  management  services.  It  serves  its  many  agricultural
customers  by  providing  loans  to  farmers,  ranchers  and  feeders  for  crop
production, equipment, breeding herds and stock/feeder cattle programs.

    Through its  subsidiaries, FirsTier  also offers  a full  range of  consumer
services,  including mortgage, installment and  home improvement loans, checking
accounts, various savings account and

                                       55
<PAGE>
certificate of deposit programs, trust services, safe deposit facilities, Credit
Line Checking and  MasterCard and  VISA credit card  accounts, and  additionally
offers customers a variety of fiduciary services ranging from the administration
of  estates  and trusts  to the  management  of funds  under pension  and profit
sharing plans.

    For further  information concerning  FirsTier,  see the  FirsTier  documents
incorporated  by reference herein  as described under  "Incorporation of Certain
Documents by Reference."

                       OWNERSHIP OF FIRSTIER COMMON STOCK

    Information concerning  the directors  and executive  officers of  FirsTier,
together  with information related to principal shareholders of FirsTier, is set
forth in FirsTier's Proxy Statement dated April 14, 1995, incorporated herein by
reference to FirsTier's Annual Report on  Form 10-K for the year ended  December
31, 1994. See "Incorporation of Certain Documents by Reference."

                        DESCRIPTION OF FBS CAPITAL STOCK

    The following is a description of the material features of the capital stock
of FBS. This description does not purport to be complete and is qualified in its
entirety  by reference to the FBS  Certificate of Incorporation, the certificate
of designation for each series of preferred stock of FBS, and the agreements and
documents referred to below under "--  Common Stock -- Preferred Stock  Purchase
Rights"  and "-- Periodic Stock Purchase Rights and Risk Event Warrants," copies
of which are incorporated by reference as exhibits to the Registration Statement
of which this Proxy Statement/ Prospectus is a part.

GENERAL

    The authorized capital stock  of FBS consists of  200,000,000 shares of  FBS
Common  Stock, par  value $1.25  per share,  and 10,000,000  shares of preferred
stock, par  value $1.00  per share  ("preferred stock  of FBS").  Under the  FBS
Certificate of Incorporation, the Board of Directors of FBS or a duly authorized
committee  thereof has  the power,  without further  action by  the shareholders
unless action is required by applicable laws  or regulations or by the terms  of
outstanding  preferred stock  of FBS, to  provide for the  issuance of preferred
stock in  one  or  more series  and  to  fix the  voting  rights,  designations,
preferences,  and relative, participating, optional or other special rights, and
qualifications, limitations or restrictions thereof, by adopting a resolution or
resolutions creating  and designating  such series.  As of  September 30,  1995,
there  were 2,095,800  shares of preferred  stock of FBS  outstanding, having an
aggregate liquidation  preference  of  $104,790,000,  and  1,412,750  shares  of
preferred stock of FBS reserved for issuance. At September 30, 1995, 135,632,324
shares  of FBS  Common Stock  were issued  and outstanding  (including 6,202,961
shares held in treasury), 7,680,088 shares were reserved for issuance under  the
FBS  employee  plans  and  dividend  reinvestment  plan,  3,616,512  shares were
reserved for issuance upon conversion of the Series 1991A Convertible  Preferred
Stock  described below,  and 15,000,000 shares  were reserved  for issuance upon
exercise of the Periodic Stock Purchase Rights and Risk Event Warrants described
below.

    The FBS Board  of Directors  has approved a  proposed amendment  to the  FBS
Certificate of Incorporation that would increase the number of authorized shares
of  FBS  Common Stock  from 200,000,000  to 500,000,000  and would  increase the
number of  authorized  shares of  preferred  stock  of FBS  from  10,000,000  to
15,000,000.  The increase in the number of authorized shares of FBS Common Stock
is necessary to have sufficient shares  available for consummation of the  First
Interstate  Transaction, in connection with which  FBS anticipates issuing up to
207,480,000 shares of FBS  Common Stock. Such amendment  is contingent upon  FBS
shareholder  approval of certain other matters  relating to the First Interstate
Transaction.

PREFERRED STOCK

    GENERAL.   FBS  presently has  one  series  of preferred  stock  issued  and
outstanding  and two series  of preferred stock  authorized for future issuance.
The Series 1991A Convertible Preferred Stock,

                                       56
<PAGE>
which is issued and outstanding, and the Series 1990A Preferred Stock, which  is
authorized  for future issuance  as described below,  rank on a  parity with one
another.  The  Series  A  Junior  Participating  Preferred  Stock  (the  "Junior
Preferred  Stock"), which is authorized for  future issuance as described below,
ranks junior to the other two series of preferred stock.

    SERIES 1990A  PREFERRED  STOCK.   In  connection with  the  sale by  FBS  of
12,600,000  shares of FBS Common Stock  and accompanying periodic stock purchase
rights and risk  event warrants in  a private  placement in July  1990, FBS  may
under  certain circumstances be obligated to issue up to 12,750 shares of Series
1990A Preferred Stock. See  "-- Common Stock --  Periodic Stock Purchase  Rights
and  Risk  Event Warrants"  below. The  shares of  Series 1990A  Preferred Stock
would, if issued, provide  for a liquidation preference  of $100,000 per  share,
and the dividend rate would be adjusted quarterly and would be determined at the
time  of issuance. If, at the time of any annual meeting of shareholders for the
election of directors, the amount of accrued but unpaid dividends on the  Series
1990A  Preferred Stock were  equal to at  least six quarterly  dividends on such
series, then the number of  directors of FBS would be  increased by one and  the
holders  of such  series, voting  separately as a  series, would  be entitled to
elect one additional  director who  would continue to  serve the  full term  for
which  he or  she would  have been  elected, notwithstanding  the declaration or
payment of any dividends  on such series of  preferred stock. Holders of  Series
1990A  Preferred  Stock  would  not  have any  other  voting  rights,  except as
described under "-- Preferred Stock Voting Rights" below.

    SERIES 1991A CONVERTIBLE PREFERRED STOCK.  In November 1991, FBS issued in a
public offering 2,290,000 shares of its Series 1991A Convertible Preferred Stock
and 2,113,700 of such shares remained outstanding at June 30, 1995. Such  shares
bear  a dividend  rate of  7.125% per  annum of  the liquidation  preference per
share. The shares of Series 1991A Convertible Preferred Stock are convertible at
the option of the holder at any time at the rate of 1.7256 shares of FBS  Common
Stock  for each such share, which is equivalent to a conversion price of $28.975
per share of FBS Common Stock. The conversion rate is subject to adjustment upon
the occurrence  of specified  events.  The shares  of Series  1991A  Convertible
Preferred  Stock are  not subject  to any  sinking fund  provisions and  have no
preemptive rights. Such shares provide for  a liquidation preference of $50  per
share  plus accrued and unpaid dividends, and  are subject to redemption upon at
least 30 days' notice, at the option of  FBS at any time on or after January  1,
1996  at a redemption  price equal to  $52.1375 per share,  declining to $50 per
share on  or  after January  1,  2002, plus  in  each case  accrued  and  unpaid
dividends;  provided,  however,  that  the shares  of  Series  1991A Convertible
Preferred Stock are  not redeemable in  part in the  event that full  cumulative
dividends  have not  been paid.  Holders of  Series 1991A  Convertible Preferred
Stock do not  have any voting  rights, except as  described under "--  Preferred
Stock Voting Rights" below.

    JUNIOR  PREFERRED STOCK.  FBS has  issued preferred stock purchase rights to
holders of FBS Common Stock entitling such holders, under specified  conditions,
to  purchase Junior Preferred  Stock of FBS.  See "-- Common  Stock -- Preferred
Stock Purchase Rights" below.  If issued, each share  of Junior Preferred  Stock
would  have a minimum liquidation preference of  $100 per share plus accrued and
unpaid dividends and  would be  entitled to an  aggregate payment  equal to  the
liquidation  payment made on 100  shares of FBS Common  Stock. In addition, each
share of  Junior Preferred  Stock would  have a  minimum preferential  quarterly
dividend  payment  of $1.00  per share  but  would be  entitled to  an aggregate
payment equal to the dividends declared on  100 shares of FBS Common Stock.  The
shares  of Junior Preferred  Stock would not  be entitled to  the benefit of any
sinking fund and would not be  redeemable. Each share of Junior Preferred  Stock
would have 100 votes, voting together with the FBS Common Stock.

    PREFERRED STOCK VOTING RIGHTS.  The following voting provisions apply to all
series  of the preferred stock of FBS other than the Junior Preferred Stock. The
voting rights  of the  Junior  Preferred Stock,  and certain  additional  voting
rights of the Series 1990A Preferred Stock, are described above under "-- Series
1990A Preferred Stock" and "-- Junior Preferred Stock."

                                       57
<PAGE>
    If,  at the time of  any annual meeting of  shareholders for the election of
directors, the amount of accrued but unpaid dividends on any preferred stock  of
FBS  is equal to  at least six  quarterly dividends on  such series of preferred
stock of FBS, the number  of the directors of FBS  will be increased by two  and
the  holders of all outstanding series of  preferred stock of FBS (excluding the
Series 1990A  Preferred Stock),  voting  as a  single  class without  regard  to
series,  will  be entitled  to  elect such  additional  two directors  until all
dividends in default on all  preferred stock of FBS  have been paid or  declared
and set apart for payment.

    The affirmative vote or consent of the holders of at least two-thirds of the
outstanding  shares of  any series of  the preferred  stock of FBS,  voting as a
class,  will  be  required  for  any   amendment  of  the  FBS  Certificate   of
Incorporation  (including any certificate of designation or any similar document
relating to any series  of preferred stock of  FBS) which will adversely  affect
the powers, preferences, privileges or rights of such series of preferred stock.
The  affirmative vote or  consent of the  holders of at  least two-thirds of the
outstanding shares of any series of preferred  stock of FBS, voting as a  single
class  without  regard  to series,  will  be  required to  issue,  authorize, or
increase the  authorized amount  of, or  issue or  authorize any  obligation  or
security  convertible into  or evidencing  a right  to purchase,  any additional
class or series of stock ranking prior  to such series of preferred stock as  to
dividends or upon liquidation.

    ADDITIONAL  PROVISIONS.  The rights  of holders of FBS  Common Stock will be
subject to, and  may be  adversely affected  by, the  rights of  holders of  any
preferred  stock  that  may be  issued  in  the future.  Any  such  issuance may
adversely affect the interests  of holders of the  FBS Common Stock by  limiting
the  control which such holders may exert by exercise of their voting rights, by
subordinating their rights in  liquidation to the rights  of the holders of  the
preferred  stock of FBS,  and otherwise. In addition,  the issuance of preferred
stock of FBS may, in some  circumstances, deter or discourage takeover  attempts
and  other changes in control of FBS, including takeovers and changes in control
which some  holders of  the  FBS Common  Stock  may deem  to  be in  their  best
interests  and in the best  interests of FBS, by making  it more difficult for a
person who has  gained a  substantial equity interest  in FBS  to obtain  voting
control  or  to  exercise  control  effectively. FBS  has  no  current  plans or
agreements with respect to the issuance of any shares of preferred stock  except
as  described above with respect to the  Series 1990A Preferred Stock and except
in connection with the proposed issuance of shares of preferred stock to holders
of First Interstate Preferred Stock. See "-- First Interstate Preferred Stock."

    The FBS Certificate of  Incorporation requires the  affirmative vote of  the
holders  of  80% of  the Voting  Stock (as  defined therein)  of FBS  to approve
certain mergers, consolidations,  reclassifications, dispositions  of assets  or
liquidation,  involving or proposed by  certain significant shareholders, unless
certain price and procedural requirements are  met or unless the transaction  is
approved  by the Continuing Directors (as defined therein). In addition, the FBS
Certificate of  Incorporation  provides  for  classification  of  the  Board  of
Directors  into three separate classes and authorizes action by the shareholders
of FBS only pursuant to  a meeting and not by  a written consent. The Bylaws  of
FBS  provide that  special meetings  of shareholders may  be called  only by the
Board of Directors or the chief  executive officer. The overall effect of  these
provisions  may be to delay or prevent  attempts by other corporations or groups
to acquire control of FBS without negotiation with the Board of Directors.

COMMON STOCK

    GENERAL.  Each share of  FBS Common Stock is  entitled to such dividends  as
may  from time  to time  be declared by  the Board  of Directors  from any funds
legally available for dividends. FBS may  not declare any cash dividends on,  or
make any payment on account of, the purchase, redemption or other retirement of,
FBS  Common  Stock unless  full dividends  (including accumulated  dividends, if
applicable) have  been  paid or  declared  or set  apart  for payment  upon  all
outstanding shares of the preferred stock of FBS and FBS is not in default or in
arrears  with respect to any sinking or  other analogous fund or other agreement
for the purchase,  redemption or  other retirement  of any  shares of  preferred
stock  of FBS. Holders of  FBS Common Stock are entitled  to one vote per share.
Shareholders do not

                                       58
<PAGE>
have the right to cumulate their votes in the election of directors. FBS  Common
Stock  has no  conversion rights  and the  holders of  FBS Common  Stock have no
preemptive or other rights to subscribe for additional securities of FBS. In the
event of liquidation of FBS, after the  payment or provision for payment of  all
debts  and liabilities  and subject  to the rights  of the  holders of preferred
stock of FBS which may be outstanding,  the holders of FBS Common Stock will  be
entitled  to share ratably in the remaining  assets of FBS. Shares of FBS Common
Stock are fully paid and nonassessable, and the shares of FBS Common Stock to be
issued to the holders of FirsTier Common Stock in the Merger will, when  issued,
be legally issued. The shares of FBS Common Stock are listed on the NYSE.

    PREFERRED  STOCK  PURCHASE  RIGHTS.   On  December  21, 1988,  the  Board of
Directors of FBS declared  a dividend of one  preferred share purchase right  (a
"Right")  for each outstanding share of FBS  Common Stock. The dividend was paid
on January 4, 1989 to the FBS  shareholders of record on that date. Each  holder
of  shares  of FBS  Common Stock  issued  upon consummation  of the  Merger will
receive one Right for each share of FBS Common Stock.

    Each Right initially entitles the registered holder to purchase from FBS one
one-hundredth of a share of Junior Preferred Stock of FBS at a price of  $80.00,
subject to adjustment (the "Purchase Price"). The Rights are not and will not be
exercisable  or represented by separate certificates until 10 days following the
earlier of  a  public announcement  that  a person  or  group of  affiliated  or
associated persons (an "Acquiring Person") have acquired beneficial ownership of
20%  or more of the outstanding shares of  FBS Common Stock or have commenced or
announced an intention to make a tender offer or exchange offer for 20% or  more
of  such outstanding shares of FBS Common Stock (the earlier of such dates being
called the  "Distribution Date").  In the  event  that any  person or  group  of
affiliated  or associated persons becomes the beneficial owner of 20% or more of
the outstanding shares  of FBS Common  Stock, each Right  (other than any  Right
held  by  a person  or group  of affiliated  or associated  persons beneficially
owning 20% or more of the outstanding  shares of FBS Common Stock, which  Rights
will  thereafter be  void) will  thereafter entitle  the holder  to receive upon
exercise that number  of shares of  FBS Common  Stock having a  market value  of
twice  the Purchase Price. In addition, in such event, the Board of Directors of
FBS will thereafter be entitled to  exchange the outstanding Rights (other  than
any Right held by an Acquiring Person, which Right shall thereafter be void), in
whole or in part, for shares of FBS Common Stock or Junior Preferred Stock at an
exchange ratio of one share of FBS Common Stock, or one one-hundredth of a share
of  Junior Preferred Stock,  per Right. In connection  with the First Interstate
Transaction, FBS amended the Rights Agreement (as hereinafter defined) to, among
other things, provide that certain transactions relating to the First Interstate
Transaction will not cause the Rights to be distributed or become exercisable.

    In the event that FBS is acquired in a merger or other business  combination
transaction or 50% or more of its consolidated assets or earning power are sold,
each  Right will  thereafter entitle  the holder  to receive  upon exercise that
number of shares of common stock of the acquiring company having a market  value
of twice the Purchase Price.

    Prior  to the Distribution Date, the Rights cannot be transferred apart from
FBS  Common  Stock  and  are  represented   solely  by  the  FBS  Common   Stock
certificates.  As soon as practicable  following the Distribution Date, separate
certificates representing the  Rights will  be mailed  to holders  of record  of
shares  of FBS Common Stock as of such  date, and the Rights could then begin to
trade separately from FBS Common Stock.

    The Rights do not have any voting rights and are not entitled to  dividends.
The  terms of  the Rights  may be  amended without  the consent  of the holders,
provided that, after a  person becomes an Acquiring  Person, such amendment  may
not adversely affect the interests of the holders.

    The terms of the Junior Preferred Stock issuable upon exercise of Rights are
described above under "-- Preferred Stock -- Junior Preferred Stock."

    The  Rights are not exercisable until the Distribution Date. The Rights will
expire on the earlier of  (a) the date which is  24 months after the first  date
upon which FBS can generally be acquired by bank

                                       59
<PAGE>
holding  companies, and FBS is generally permitted to acquire banks, principally
located in at least fifteen of the twenty states which as of September 30,  1992
had  the largest amount of bank deposits  or (b) January 4, 1999, unless, before
that date, all of the Rights are either  redeemed by FBS at a price of $.01  per
Right  prior to the acquisition by a person or group of affiliated or associated
persons of beneficial ownership of 20% or more of the outstanding shares of  FBS
Common  Stock, or are exchanged by FBS for  shares of FBS Common Stock or Junior
Preferred Stock as described above. It  is currently anticipated that the  first
date  on which FBS can generally be  acquired by bank holding companies, and FBS
is generally permitted to acquire banks, principally located in at least fifteen
of the twenty states which  as of September 30, 1992  had the largest amount  of
bank deposits will be in July 1996.

    The  Rights may  have certain  anti-takeover effects.  The Rights  may cause
substantial dilution to  an Acquiring Person  if it attempts  to merge with,  or
engage  in certain other transactions with, FBS. The Rights should not, however,
interfere with any merger or other business combination approved by the Board of
Directors of FBS prior  to the occurrence of  the Distribution Date because  the
Rights may be redeemed prior to such time.

    The  complete terms of the Rights are set forth in a Rights Agreement, dated
as of December 21, 1988, as amended, between FBS and First Chicago Trust Company
of New  York (formerly  Morgan Shareholder  Services Trust  Company), as  Rights
Agent  (the "Rights Agreement"). The description  of the Rights set forth herein
does not purport to be complete and is qualified in its entirety by reference to
the complete Rights Agreement, a copy  of which is incorporated by reference  as
an    exhibit   to   the   Registration    Statement   of   which   this   Proxy
Statement/Prospectus is a part.

    PERIODIC STOCK PURCHASE RIGHTS  AND RISK EVENT WARRANTS.   On May 30,  1990,
FBS  entered into (i) a Stock Purchase Agreement,  dated as of May 30, 1990 (the
"Stock Purchase Agreement"), by and  among Corporate Partners, L.P.  ("Corporate
Partners"),  Corporate Offshore  Partners, L.P.  ("Offshore" and,  together with
Corporate Partners, the  "Partnerships"), The State  Board of Administration  of
Florida  ("State Board") solely in its capacity  as a managed account and not in
its individual  capacity (State  Board and  the Partnerships  being referred  to
herein  collectively as the "Purchasers"), Corporate  Advisors, L.P. and FBS and
(ii) a Stock Purchase Agreement,  dated as of May  30, 1990 (the "Florida  Stock
Purchase  Agreement"), by and between State Board in its individual capacity and
FBS. Pursuant  to  the Stock  Purchase  Agreement,  FBS sold  (a)  to  Corporate
Partners  8,856,241  shares of  FBS Common  Stock,  ten Periodic  Stock Purchase
Rights (each  a "PSPR")  and one  Risk Event  Warrant, (b)  to Offshore  643,976
shares  of FBS Common  Stock, ten PSPRs and  one Risk Event  Warrant, and (c) to
State Board 939,783 shares  of FBS Common  Stock, ten PSPRs  and one Risk  Event
Warrant.  Pursuant to  the Florida Stock  Purchase Agreement, FBS  sold to State
Board 2,160,000  shares  of FBS  Common  Stock, ten  PSPRs  and one  Risk  Event
Warrant.  Effective as of May  30, 1990, FBS and  First Chicago Trust Company of
New York entered into  Amendment No. 1  to the Rights  Agreement to exclude  the
acquisition  of shares  of FBS  Common Stock by  the Purchasers  and State Board
pursuant to  the  Stock  Purchase  Agreement  and  the  Florida  Stock  Purchase
Agreement,  respectively, and the transactions  contemplated thereby and certain
other transactions from the operation of the Rights Agreement. See "-- Preferred
Stock Purchase Rights" above.

    The Stock  Purchase  Agreement  and the  Florida  Stock  Purchase  Agreement
contain  transfer restrictions  with respect to  the shares of  FBS Common Stock
acquired thereunder and standstill  provisions limiting further acquisitions  of
FBS Common Stock by the Purchasers and State Board. The Stock Purchase Agreement
and  the Florida Stock Purchase Agreement also  grant each of the Purchasers and
State Board the right to  purchase its pro rata  share of any Voting  Securities
(as  defined) sold by FBS  for cash, subject to  certain exceptions. Pursuant to
the Stock Purchase Agreement, the Purchasers  have designated one person to  act
as a non-voting observer of the Board of Directors of FBS.

    Each  PSPR issued to  the Purchasers and  State Board relates  to a specific
twelve-month period commencing with the twelve-month period following closing of
the transactions contemplated under

                                       60
<PAGE>
the Stock Purchase Agreement and the Florida Stock Purchase Agreement. Each PSPR
shall become exercisable  in the event  that a Dividend  Shortfall (as  defined)
exists  for  the specific  twelve-month  period to  which  such PSPR  relates. A
Dividend Shortfall will be deemed to exist to the extent that FBS has not paid a
cash dividend equal to  $0.205 per share  of FBS Common  Stock for each  quarter
within  such twelve-month period. The PSPRs  will be exercisable for that number
of shares of FBS Common Stock or  (subject to the prior approval of the  Federal
Reserve  Board) depositary shares representing one  one-thousandth of a share of
Series 1990A  Preferred Stock  ("Depositary Shares")  such that  the holders  of
PSPRs will receive value equal to the Dividend Shortfall. Once a PSPR has become
exercisable,  it will  remain exercisable for  a one-year period  at an exercise
price of $1.25 per share of FBS Common Stock or $1.00 per Depositary Share. If a
PSPR were to become exercisable and were not redeemed by FBS as described below,
the issuance of Depositary Shares  or FBS Common Stock  upon exercise of a  PSPR
could  adversely affect the market  price of the FBS  Common Stock. If the PSPRs
were to be exercised for FBS  Common Stock, there could be substantial  dilution
of the FBS Common Stock.

    Each  Risk Event  Warrant shall become  exercisable in the  event of certain
defined change of control events with respect to FBS where the value received by
holders of the FBS Common  Stock is less than $13.875  per share, or in  certain
circumstances  in the event the FBS Common  Stock is valued at less than $13.875
per  share  on  the  tenth  anniversary  of  the  closing  of  the  transactions
contemplated under the Stock Purchase Agreement. The Risk Event Warrants will be
exercisable  for that number of shares of  FBS Common Stock at an exercise price
of $1.25 per share or, in  certain circumstances (subject to the prior  approval
of  the Federal Reserve Board), Depositary Shares  such that the holders of Risk
Event Warrants will  receive value equal  to such shortfall.  If the Risk  Event
Warrants  were to become exercisable  and were not redeemed  by FBS as described
below, the issuance of Depositary Shares or FBS Common Stock upon exercise of  a
Risk  Event Warrant could  adversely affect the  market price of  the FBS Common
Stock. If the Risk  Event Warrants were  to be exercised  for FBS Common  Stock,
there  could be substantial dilution of the FBS  Common Stock. In the event of a
change in control at  a time when the  market price of the  FBS Common Stock  is
less  than $13.875  per share, the  Risk Event  Warrants may have  the effect of
reducing the price per  share to be  received by the holders  of the FBS  Common
Stock.

    In  the event of the exercise of a Risk Event Warrant upon the occurrence of
certain change of control events, FBS may,  at its option (subject to the  prior
approval  of the Federal Reserve  Board), elect to have  such Risk Event Warrant
become exercisable for other securities of FBS acceptable to the holder of  such
Risk Event Warrant in lieu of the shares of FBS Common Stock for which such Risk
Event Warrant would otherwise become exercisable. In addition, FBS has the right
(subject  to the prior approval of the Federal Reserve Board) to redeem any PSPR
at a price equal to the Dividend Shortfall and any Risk Event Warrant at a price
equal to the Value  Shortfall (as defined) or  the Termination Shortfall  Amount
(as  defined), as applicable, after such PSPR or Risk Event Warrant, as the case
may be, shall have become exercisable. FBS also has entered into a  registration
rights  agreement with the Purchasers and with State Board pursuant to which the
Purchasers and State Board,  respectively, are granted  certain rights to  cause
FBS  to register with the  Commission the FBS Common  Stock acquired pursuant to
the Stock Purchase Agreement  and the Florida Stock  Purchase Agreement and  the
securities acquired upon exercise of the PSPRs and the Risk Event Warrants.

    The  foregoing is  a summary of  the transactions contemplated  by the Stock
Purchase  Agreement  and  the  Florida  Stock  Purchase  Agreement  and  related
documents  and is  qualified in  its entirety  by the  more detailed information
contained in such agreements and documents, copies of which are incorporated  by
reference  as  exhibits  to  the  Registration  Statement  of  which  this Proxy
Statement/ Prospectus is a part.

FIRST INTERSTATE PREFERRED STOCK

    In connection with  the First Interstate  Transaction, the First  Interstate
Merger Agreement provides that each outstanding share of First Interstate 9.875%
preferred  stock will be converted  into one share of  9.875% preferred stock of
FBS and each outstanding share of First Interstate 9.0%

                                       61
<PAGE>
preferred stock will be converted into one share of 9.0% preferred stock of  FBS
upon  consummation of the First Interstate Transaction. The terms, designations,
preferences, limitations, privileges and rights of the respective series of  FBS
preferred  stock  issued  will  be  substantially  the  same  as  those  of  the
corresponding series  of First  Interstate preferred  stock. The  FBS  preferred
stock  issued will rank on a parity as to payment of dividends and distributions
of assets upon  dissolution, liquidation or  winding up of  FBS with each  other
currently outstanding share of preferred stock of FBS.

                     DESCRIPTION OF FIRSTIER CAPITAL STOCK

    The  authorized capital stock  of FirsTier consists  of 40,000,000 shares of
Common Stock, $5.00 par value, and  2,000,000 shares of Preferred Stock,  $30.00
par  value. Under  of FirsTier's Articles  of Incorporation,  the FirsTier Board
may, without  further  shareholder  action,  authorize from  time  to  time  the
issuance of up to 2,000,000 shares of preferred stock of FirsTier, certain terms
of  which may be determined by the FirsTier  Board. As of January 4, 1996, there
were 18,715,040 shares of  FirsTier Common Stock outstanding,  and no shares  of
FirsTier  preferred stock designated and  outstanding. The FirsTier Common Stock
is described in FirsTier's Registration Statement filed under Section 12 of  the
Exchange  Act,  including  any amendment  or  report  filed for  the  purpose of
updating  such  description  filed  subsequent   to  the  date  of  this   Proxy
Statement/Prospectus  and  prior to  the termination  of the  offering described
herein. See "Incorporation of Certain Documents by Reference."

                                 LEGAL OPINIONS

    The validity of the securities offered  hereby has been passed upon for  FBS
by  Dorsey & Whitney P.L.L.P., Minneapolis, Minnesota. Dorsey & Whitney P.L.L.P.
and certain of  its members are  indebted to  and have other  banking and  trust
relationships with certain banking subsidiaries of FBS.

    The opinion of counsel described under "The Merger -- Certain Federal Income
Tax  Consequences  To  FirsTier  Shareholders" has  been  rendered  by Wachtell,
Lipton, Rosen & Katz, New York, New York, counsel to FirsTier.

                                    EXPERTS

    The consolidated financial  statements of FBS  as of December  31, 1994  and
1993,  and for  each of the  three years in  the period ended  December 31, 1994
appearing in FBS's  Current Report on  Form 8-K  dated March 3,  1995 have  been
audited by Ernst & Young LLP, independent auditors, as set forth in their report
thereon included therein and incorporated herein by reference. Such consolidated
financial  statements are incorporated herein by reference in reliance upon such
report given  upon the  authority of  such  firm as  experts in  accounting  and
auditing.

    The  consolidated  financial  statements  of  FirsTier  appearing  in  FBS's
Amendment No. 1 on Form 8-K/A filed  August 30, 1995 to FBS's Current Report  on
Form  8-K  filed August  18,  1995 have  been  audited by  Arthur  Andersen LLP,
independent public  accountants,  as set  forth  in their  report  with  respect
thereto,  and are  incorporated by reference  in reliance upon  the authority of
said firm as experts in accounting and auditing in giving said reports.

    The consolidated financial statements of First Interstate as of December 31,
1994 and 1993, and for each of the three years in the period ended December  31,
1994  appearing in the  Annual Report on  Form 10-K of  First Interstate for the
year ended December 31, 1994 have been audited by Ernst & Young LLP, independent
auditors, as set forth in their report thereon included therein and incorporated
herein by  reference. Such  consolidated financial  statements are  incorporated
herein  by reference in  reliance upon such  report given upon  the authority of
said firm as experts in accounting and auditing.

                                       62
<PAGE>
                         INDEPENDENT PUBLIC ACCOUNTANTS

    Representatives of Arthur Andersen LLP, FirsTier's independent auditor,  are
expected to be present at the FirsTier Special Meeting. They may be afforded the
opportunity  to make a statement if they desire  to do so and are expected to be
available to respond to appropriate questions.

                             SHAREHOLDER PROPOSALS

    FIRSTIER SHAREHOLDER PROPOSALS.  If the Merger is not consummated,  FirsTier
is  expected to retain its December 31 fiscal  year end. In such event, in order
to be eligible for inclusion in FirsTier's proxy solicitation materials for  its
1996  annual meeting of shareholders, any  shareholder proposal to be considered
at such  meeting must  have  been received  by FirsTier's  Corporate  Secretary,
Thomas  B.  Fischer,  at  FirsTier's main  office,  1700  Farnam  Street, Omaha,
Nebraska 68102-2183, no later than December 11, 1995. Any such proposal shall be
subject to the requirements of the proxy rules adopted under the Exchange Act.

                     MANAGEMENT AND ADDITIONAL INFORMATION

    Certain information  relating  to the  management,  executive  compensation,
various  benefit  plans  (including  stock  plans),  voting  securities  and the
principal holders thereof,  certain relationships and  related transactions  and
other  related matters as to FBS and FirsTier is set forth in or incorporated by
reference in  the respective  Annual Reports  on Form  10-K for  the year  ended
December  31, 1994 of FBS  and FirsTier, which are  incorporated by reference in
this Proxy  Statement/Prospectus. See  "Incorporation  of Certain  Documents  by
Reference."  FBS and  FirsTier shareholders who  wish to obtain  copies of these
documents may  contact  FBS  or  FirsTier, as  applicable,  at  its  address  or
telephone  number  set  forth  under  "Incorporation  of  Certain  Documents  by
Reference."

                                       63
<PAGE>
          UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

    The  following Unaudited  Pro Forma Condensed  Combined Balance  Sheet as of
September 30, 1995, combines the historical consolidated balance sheets of First
Bank  System,  Inc.  ("FBS"),  FirsTier  Financial,  Inc.  ("FirsTier"),   First
Interstate   Bancorp  ("First  Interstate"),   Midwestern  Services,  Inc.,  and
Southwest Holdings, Inc.  as if  the mergers  with FirsTier  (the "Merger")  and
First  Interstate and the other acquisitions had been effective on September 30,
1995, after giving effect to certain adjustments described in the attached Notes
to Unaudited Pro  Forma Condensed Combined  Financial Statements. The  Unaudited
Pro  Forma  Condensed  Combined Balance  Sheet  also includes  the  repayment of
existing FBS  short-term debt  through  the sale  of existing  First  Interstate
investment  securities and the intangible assets  related to the purchase by FBS
of the corporate  trust relationships and  accounts of BankAmerica  Corporation.
The  Unaudited Pro  Forma Condensed Combined  Statements of Income  for the nine
months ended September 30, 1995, and  the year ended December 31, 1994,  present
the  combined results of operations of FBS,  FirsTier and First Interstate as if
the Merger and the First Interstate  merger had been effective at the  beginning
of  each period,  after giving  effect to  certain adjustments  described in the
attached Notes to Unaudited Pro  Forma Condensed Combined Financial  Statements.
The  Unaudited Pro Forma  Condensed Combined Statements of  Income for the years
ended December  31,  1993  and  1992,  present  only  the  combined  results  of
operations  of FBS and  First Interstate as  if the First  Interstate merger had
been effective at the beginning of  each period, after giving effect to  certain
adjustments  described in  the attached Notes  to Unaudited  Pro Forma Condensed
Combined Financial Statements.

    The  unaudited  pro  forma  condensed  combined  financial  statements   and
accompanying  notes reflect the application of the purchase method of accounting
for the Merger.  Under this  method of accounting,  the purchase  price will  be
allocated  to assets acquired  and liabilities assumed  based on their estimated
fair values  at the  closing of  the  acquisition. The  amount of  the  purchase
accounting  adjustments included in these unaudited pro forma condensed combined
financial statements  are  preliminary  estimates.  The  actual  amount  of  the
adjustments  will  be  based on  information  available  at the  closing  of the
acquisition and could be different from the estimates.

    The First  Interstate merger  is  reflected using  the  pooling-of-interests
method  of accounting.  Under this  method of  accounting, the  recorded assets,
liabilities,  shareholders'  equity,  income  and  expenses  of  FBS  and  First
Interstate are combined and recorded at their historical amounts.

    The  unaudited pro forma condensed  combined financial information presented
is included for informational purposes only and is not necessarily indicative of
the combined  financial position  or results  of the  future operations  of  the
combined  entity or  the actual  results that would  have been  achieved had the
Merger and the  First Interstate  merger been  consumated prior  to the  periods
indicated.

    The  pro forma  condensed combined financial  information should  be read in
conjunction with the financial statements of FirsTier and subsidiaries  included
in FBS's Amendment No. 1 on Form 8-K/A filed August 30, 1995 and Amendment No. 2
on  Form  8-K/A  filed November  15,  1995,  the financial  statements  of First
Interstate and subsidiaries included in FBS's  Current Report on Form 8-K  filed
November  16, 1995 and the financial statements of FBS and subsidiaries included
in its  Current Report  on Form  8-K  filed March  3, 1995,  and its  Form  10-Q
Quarterly Report for the nine months ended September 30, 1995.

                                      F-1
<PAGE>
                                     INDEX

<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Unaudited Pro Forma Condensed Combined Balance Sheet at September 30,
 1995.....................................................................  F-3
Unaudited Pro Forma Condensed Combined Statement of Income:
  Nine months ended September 30, 1995....................................  F-4
  Year ended December 31, 1994............................................  F-5
  Year ended December 31, 1993............................................  F-6
  Year ended December 31, 1992............................................  F-7
Notes to Unaudited Pro Forma Condensed Combined Financial Statements......  F-8
</TABLE>

                                      F-2
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
              UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
                               SEPTEMBER 30, 1995
<TABLE>
<CAPTION>
                                                                                                   FIRST INTERSTATE
                                                    FIRSTIER                                         CONSOLIDATED
                                            ------------------------                            -----------------------
                                  FBS                     PURCHASE       OTHER         FBS                    MERGER      FINANCING
                              CONSOLIDATED  HISTORICAL   ADJUSTMENTS  ACQUISITIONS  PRO FORMA   HISTORICAL  ADJUSTMENTS  TRANSACTION
                              ------------  -----------  -----------  ------------  ----------  ----------  -----------  -----------
                                                                          (IN MILLIONS)
<S>                           <C>           <C>          <C>          <C>           <C>         <C>         <C>          <C>
ASSETS

Cash and due from banks...... $     1,586   $      208                $        10   $   1,804   $   5,916
Federal funds sold and
 securities purchased under
 agreements to resell........         260           97                         12         369         470
Trading account securities...         164                                                 164         116
Held-to-maturity securities..                      741   $     (741)                                9,320                $   (4,000)
Available-for-sale
 securities..................       3,302          261          741           100       4,404         112
Loans........................      25,877        2,191                        266      28,334      35,967
  Less allowance for credit
   losses....................         469           52                          3         524         847
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------
  Net loans..................      25,408        2,139                        263      27,810      35,120
Bank premises and
 equipment...................         410           50                         11         471       1,277          (40)
Interest receivable..........         189           35                                    224         326
Customers' liability on
 acceptances.................         165            1                                    166          54
Other assets.................       1,474           53          338           208       2,073       2,356          180
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------
    Total assets............. $    32,958   $    3,585   $      338   $       604   $  37,485   $  55,067   $      140   $   (4,000)
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------

LIABILITIES AND SHAREHOLDERS' EQUITY

Deposits:
  Noninterest-bearing........ $     5,779   $      471                $        74   $   6,324   $  17,044
  Interest-bearing...........      16,116        2,305                        656      19,077      31,192
                              ------------  -----------                    ------   ----------  ----------
    Total deposits...........      21,895        2,776                        730      25,401      48,236
Federal funds purchased and
 securities sold under
 agreements to repurchase....       1,602          204   $      202          (200)      1,808         307                $   (2,115)
Other short-term funds
 borrowed....................       2,554            6                          4       2,564          69                    (1,885)
Long-term debt...............       3,127          164                         10       3,301       1,368
Acceptances outstanding......         165            1                                    166          54
Other liabilities............         879           58                         11         948       1,052          435
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------
    Total liabilities........      30,222        3,209          202           555      34,188      51,086          435       (4,000)
Shareholders' equity:
  Preferred stock............         105                                                 105         350
  Common stock...............         169           94          (84)            2         181         169           77
  Capital surplus............         900            5          225            45       1,175       1,667         (719)
  Retained earnings..........       1,837          283         (283)            2       1,839       2,436         (295)
  Unrealized (loss) gain on
   securities, net of tax....          (3)           4           (4)                       (3)          1
  Less cost of common stock
   in treasury...............        (272)         (10)         282                                  (642)         642
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------
    Total shareholders'
     equity..................       2,736          376          136            49       3,297       3,981         (295)
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------
    Total liabilities and
     shareholders' equity.... $    32,958   $    3,585   $      338   $       604   $  37,485   $  55,067   $      140   $   (4,000)
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------
                              ------------  -----------  -----------       ------   ----------  ----------  -----------  -----------

<CAPTION>

                               PRO FORMA
                               COMBINED
                               ---------

<S>                           <C>
ASSETS
Cash and due from banks......  $  7,720
Federal funds sold and
 securities purchased under
 agreements to resell........       839
Trading account securities...       280
Held-to-maturity securities..     5,320
Available-for-sale
 securities..................     4,516
Loans........................    64,301
  Less allowance for credit
   losses....................     1,371
                               ---------
  Net loans..................    62,930
Bank premises and
 equipment...................     1,708
Interest receivable..........       550
Customers' liability on
 acceptances.................       220
Other assets.................     4,609
                               ---------
    Total assets.............  $ 88,692
                               ---------
                               ---------
LIABILITIES AND SHAREHOLDERS'
Deposits:
  Noninterest-bearing........  $ 23,368
  Interest-bearing...........    50,269
                               ---------
    Total deposits...........    73,637
Federal funds purchased and
 securities sold under
 agreements to repurchase....         0
Other short-term funds
 borrowed....................       748
Long-term debt...............     4,669
Acceptances outstanding......       220
Other liabilities............     2,435
                               ---------
    Total liabilities........    81,709
Shareholders' equity:
  Preferred stock............       455
  Common stock...............       427
  Capital surplus............     2,123
  Retained earnings..........     3,980
  Unrealized (loss) gain on
   securities, net of tax....        (2)
  Less cost of common stock
   in treasury...............         0
                               ---------
    Total shareholders'
     equity..................     6,983
                               ---------
    Total liabilities and
     shareholders' equity....  $ 88,692
                               ---------
                               ---------
</TABLE>

    See Notes to Unaudited Pro Forma Condensed Combined Financial Statements

                                      F-3
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1995

<TABLE>
<CAPTION>
                                                          FIRSTIER
                                                 --------------------------                     FIRST
                                      FBS                        PURCHASE         FBS        INTERSTATE      PRO FORMA
                                 CONSOLIDATED    HISTORICAL    ADJUSTMENTS     PRO FORMA    CONSOLIDATED      COMBINED
                                 -------------   -----------   ------------   -----------   -------------   ------------
                                                          (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                              <C>             <C>           <C>            <C>           <C>             <C>
Interest Income:
  Loans........................       $1,693.0   $    142.9                   $  1,835.9    $    2,282.7        $4,118.6
  Securities:
    Taxable....................          175.2         29.0                        204.2           478.8           683.0
    Exempt from federal income
     taxes.....................            8.4         18.0                         26.4             1.3            27.7
  Other interest income........           26.4          5.1                         31.5            26.3            57.8
                                 -------------   -----------   ------------   -----------   -------------   ------------
      Total interest income....        1,903.0        195.0                      2,098.0         2,789.1         4,887.1
Interest Expense:
  Deposits.....................          538.2         78.3                        616.5           721.8         1,338.3
  Federal funds purchased and
   repurchase agreements.......           87.6          8.2    $      15.0         110.8            69.4           180.2
  Other short-term funds
   borrowed....................           56.8          1.2                         58.0             2.8            60.8
  Long-term debt...............          140.5          6.8                        147.3            90.5           237.8
                                 -------------   -----------   ------------   -----------   -------------   ------------
      Total interest expense...          823.1         94.5           15.0         932.6           884.5         1,817.1
                                 -------------   -----------   ------------   -----------   -------------   ------------
  Net interest income..........        1,079.9        100.5          (15.0)      1,165.4         1,904.6         3,070.0
  Provision for credit
   losses......................           84.0          0.8                         84.8                            84.8
                                 -------------   -----------   ------------   -----------   -------------   ------------
      Net interest income after
       provision for credit
       losses..................          995.9         99.7          (15.0)      1,080.6         1,904.6         2,985.2
Noninterest Income:
  Credit card fees.............          171.0          7.3                        178.3            41.4           219.7
  Trust fees...................          127.5         12.6                        140.1           123.3           263.4
  Service charges on deposit
   accounts....................           93.3         12.8                        106.1           446.3           552.4
  Securities gains.............                                                                      5.6             5.6
  Gain on sale of branches.....           31.0                                      31.0                            31.0
  Other........................          163.0          9.7                        172.7           206.7           379.4
                                 -------------   -----------   ------------   -----------   -------------   ------------
      Total noninterest
       income..................          585.8         42.4                        628.2           823.3         1,451.5
Noninterest Expense:
  Salaries and benefits........          405.9         41.4                        447.3           804.2         1,251.5
  Occupancy and equipment......          146.1         10.7                        156.8           293.5           450.3
  Amortization of goodwill and
   other intangible assets.....           42.2          1.3           12.7          56.2            45.3           101.5
  Restructuring................                                                                     15.7            15.7
  Other........................          324.4         30.6                        355.0           479.6           834.6
                                 -------------   -----------   ------------   -----------   -------------   ------------
      Total noninterest
       expense.................          918.6         84.0           12.7       1,015.3         1,638.3         2,653.6
                                 -------------   -----------   ------------   -----------   -------------   ------------
Income before income taxes.....          663.1         58.1          (27.7)        693.5         1,089.6         1,783.1
Applicable income taxes........          245.7         15.5           (5.6)        255.6           419.9           675.5
                                 -------------   -----------   ------------   -----------   -------------   ------------
Net Income.....................        $ 417.4   $     42.6    $     (22.1)   $    437.9    $      669.7        $1,107.6
                                 -------------   -----------   ------------   -----------   -------------   ------------
                                 -------------   -----------   ------------   -----------   -------------   ------------
Net income applicable to common
 equity........................        $ 411.8   $     42.6    $     (22.1)   $    432.3    $      644.8        $1,077.1
                                 -------------   -----------   ------------   -----------   -------------   ------------
                                 -------------   -----------   ------------   -----------   -------------   ------------
Earnings Per Common Share
  Average common and common
   equivalent shares...........    135,007,519                                                               344,505,319
  Net income...................         $ 3.05                                                                    $ 3.13
                                 -------------                                                              ------------
                                 -------------                                                              ------------
</TABLE>

    See Notes to Unaudited Pro Forma Condensed Combined Financial Statements

                                      F-4
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                      FOR THE YEAR ENDED DECEMBER 31, 1994

<TABLE>
<CAPTION>
                                                           FIRSTIER
                                                  --------------------------                     FIRST
                                       FBS                        PURCHASE         FBS        INTERSTATE      PRO FORMA
                                  CONSOLIDATED    HISTORICAL    ADJUSTMENTS     PRO FORMA    CONSOLIDATED      COMBINED
                                  -------------   -----------   ------------   -----------   -------------   ------------
                                                           (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                               <C>             <C>           <C>            <C>           <C>             <C>
Interest Income:
  Loans.........................      $1,914.7    $    161.9    $              $  2,076.6    $    2,303.7        $4,380.3
  Securities:
    Taxable.....................         327.9          44.3                        372.2           841.6         1,213.8
    Exempt from federal income
     taxes......................          12.0          20.5                         32.5             2.7            35.2
  Other interest income.........          33.5           4.8                         38.3            44.0            82.3
                                  -------------   -----------        ------    -----------   -------------   ------------
      Total interest income.....       2,288.1         231.5                      2,519.6         3,192.0         5,711.6
Interest Expense:
  Deposits......................         597.3          82.1                        679.4           725.0         1,404.4
  Federal funds purchased and
   repurchase agreements........         103.1           7.9           16.8         127.8            26.5           154.3
  Other short-term funds
   borrowed.....................          20.4           1.4                         21.8             7.7            29.5
  Long-term debt................         147.9           5.7                        153.6           106.3           259.9
                                  -------------   -----------        ------    -----------   -------------   ------------
      Total interest expense....         868.7          97.1           16.8         982.6           865.5         1,848.1
                                  -------------   -----------        ------    -----------   -------------   ------------
  Net interest income...........       1,419.4         134.4          (16.8)      1,537.0         2,326.5         3,863.5
  Provision for credit losses...         123.6          (0.2)                       123.4         --                123.4
                                  -------------   -----------        ------    -----------   -------------   ------------
      Net interest income after
       provision for credit
       losses...................       1,295.8         134.6          (16.8)      1,413.6         2,326.5         3,740.1
Noninterest Income:
  Credit card fees..............         179.0           9.6                        188.6            39.7           228.3
  Trust fees....................         159.2          16.1                        175.3           193.3           368.6
  Service charges on deposit
   accounts.....................         127.3          15.6                        142.9           561.9           704.8
  Securities (losses) gains.....        (115.0)         (3.7)                      (118.7)           21.1           (97.6)
  Other.........................         208.4          14.4                        222.8           238.3           461.1
                                  -------------   -----------        ------    -----------   -------------   ------------
      Total noninterest income..         558.9          52.0                        610.9         1,054.3         1,665.2
Noninterest Expense:
  Salaries and benefits.........         556.4          52.8                        609.2         1,079.9         1,689.1
  Occupancy and equipment.......         192.1          16.8                        208.9           356.6           565.5
  Amortization of goodwill and
   other intangible assets......          50.4           1.7           16.9          69.0            35.3           104.3
  Merger, integration and
   severance costs..............         122.7                                      122.7                           122.7
  Restructuring.................                                                                    141.3           141.3
  Other.........................         427.8          46.8                        474.6           584.7         1,059.3
                                  -------------   -----------        ------    -----------   -------------   ------------
      Total noninterest
       expense..................       1,349.4         118.1           16.9       1,484.4         2,197.8         3,682.2
                                  -------------   -----------        ------    -----------   -------------   ------------
Income from continuing
 operations before income
 taxes..........................         505.3          68.5          (33.7)        540.1         1,183.0         1,723.1
Applicable income taxes.........         191.8          17.6           (6.4)        203.0           449.5           652.5
                                  -------------   -----------        ------    -----------   -------------   ------------
Income from continuing
 operations.....................       $ 313.5    $     50.9    $     (27.3)   $    337.1    $      733.5        $1,070.6
                                  -------------   -----------        ------    -----------   -------------   ------------
                                  -------------   -----------        ------    -----------   -------------   ------------
Income from continuing
 operations applicable to common
 equity.........................       $ 300.9    $     50.9    $     (27.3)   $    324.5    $      700.2        $1,024.7
                                  -------------   -----------        ------    -----------   -------------   ------------
                                  -------------   -----------        ------    -----------   -------------   ------------
Earnings Per Common Share
  Average common and common
   equivalent shares............   136,274,991                                                                353,672,040
  Income from continuing
   operations...................       $  2.21                                                                    $  2.90
                                  -------------                                                              ------------
                                  -------------                                                              ------------
</TABLE>

    See Notes to Unaudited Pro Forma Condensed Combined Financial Statements

                                      F-5
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                      FOR THE YEAR ENDED DECEMBER 31, 1993

<TABLE>
<CAPTION>
                                                                                       FIRST
                                                                        FBS          INTERSTATE      PRO FORMA
                                                                    CONSOLIDATED    CONSOLIDATED      COMBINED
                                                                   --------------  --------------  --------------
                                                                        (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                                                                <C>             <C>             <C>
Interest Income:
  Loans..........................................................        $1,730.7   $    1,980.9         $3,711.6
  Securities:
    Taxable......................................................           352.1          861.4          1,213.5
    Exempt from federal income taxes.............................            14.6            2.9             17.5
  Other interest income..........................................            37.1           99.0            136.1
                                                                   --------------  --------------  --------------
      Total interest income......................................         2,134.5        2,944.2          5,078.7
Interest Expense:
  Deposits.......................................................           648.3          719.9          1,368.2
  Federal funds purchased and repurchase agreements..............            31.8           10.2             42.0
  Other short-term funds borrowed................................            20.1            5.8             25.9
  Long-term debt.................................................            96.1          136.2            232.3
                                                                   --------------  --------------  --------------
      Total interest expense.....................................           796.3          872.1          1,668.4
                                                                   --------------  --------------  --------------
  Net interest income............................................         1,338.2        2,072.1          3,410.3
  Provision for credit losses....................................           133.1          112.6            245.7
                                                                   --------------  --------------  --------------
      Net interest income after provision for credit losses......         1,205.1        1,959.5          3,164.6
Noninterest Income:
  Credit card fees...............................................           137.1           44.1            181.2
  Trust fees.....................................................           146.1          177.4            323.5
  Service charges on deposit accounts............................           126.0          513.0            639.0
  Securities gains...............................................             0.3            9.7             10.0
  Other..........................................................           209.4          210.0            419.4
                                                                   --------------  --------------  --------------
      Total noninterest income...................................           618.9          954.2          1,573.1
Noninterest Expense:
  Salaries and benefits..........................................           538.9          975.3          1,514.2
  Occupancy and equipment........................................           190.4          337.2            527.6
  Amortization of goodwill and other intangible assets...........            41.3           24.2             65.5
  Merger and integration.........................................            72.2                            72.2
  Other..........................................................           421.9          695.7          1,117.6
                                                                   --------------  --------------  --------------
      Total noninterest expense..................................         1,264.7        2,032.4          3,297.1
                                                                   --------------  --------------  --------------
Income from continuing operations before income taxes,
 extraordinary item and cumulative effect of changes in
 accounting principles...........................................           559.3          881.3          1,440.6
Applicable income taxes..........................................           198.6          319.9            518.5
                                                                   --------------  --------------  --------------
Income from continuing operations before extraordinary item and
 cumulative effect of changes in accounting principles...........         $ 360.7  $       561.4          $ 922.1
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
Income from continuing operations before extraordinary item and
 cumulative effect of changes in accounting principles applicable
 to common equity................................................         $ 331.5  $       514.8          $ 846.3
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
Earnings Per Common Share
  Average common and common equivalent shares....................     134,588,664                     343,147,811
Income from continuing operations before extraordinary item and
 cumulative effect of changes in accounting principles...........         $  2.46                         $  2.47
                                                                   --------------                  --------------
                                                                   --------------                  --------------
</TABLE>

    See Notes to Unaudited Pro Forma Condensed Combined Financial Statements

                                      F-6
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
           UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                      FOR THE YEAR ENDED DECEMBER 31, 1992

<TABLE>
<CAPTION>
                                                                                       FIRST
                                                                        FBS         INTERSTATE       PRO FORMA
                                                                   CONSOLIDATED    CONSOLIDATED      COMBINED
                                                                   -------------   -------------   -------------
                                                                       (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                                                                <C>             <C>             <C>
Interest Income:
  Loans..........................................................       $1,687.2   $    2,238.8         $3,926.0
  Securities:
    Taxable......................................................          336.5          746.9          1,083.4
    Exempt from federal income taxes.............................           12.0            3.9             15.9
  Other interest income..........................................           70.4          200.1            270.5
                                                                   -------------   -------------   -------------
      Total interest income......................................        2,106.1        3,189.7          5,295.8
Interest Expense:
  Deposits.......................................................          797.7          932.8          1,730.5
  Federal funds purchased and repurchase agreements..............           37.1           10.4             47.5
  Other short-term funds borrowed................................           17.1            4.0             21.1
  Long-term debt.................................................          101.2          227.9            329.1
                                                                   -------------   -------------   -------------
      Total interest expense.....................................          953.1        1,175.1          2,128.2
                                                                   -------------   -------------   -------------
  Net interest income............................................        1,153.0        2,014.6          3,167.6
  Provision for credit losses....................................          191.7          314.3            506.0
                                                                   -------------   -------------   -------------
      Net interest income after provision for credit losses......          961.3        1,700.3          2,661.6
Noninterest Income:
  Credit card fees...............................................          116.9           37.3            154.2
  Trust fees.....................................................          127.8          170.3            298.1
  Service charges on deposit accounts............................          114.8          478.9            593.7
  Securities gains (losses)......................................           46.3           (1.8)            44.5
  Other..........................................................          207.9          227.4            435.3
                                                                   -------------   -------------   -------------
      Total noninterest income...................................          613.7          912.1          1,525.8
Noninterest Expense:
  Salaries and benefits..........................................          521.2        1,035.4          1,556.6
  Occupancy and equipment........................................          170.4          359.4            529.8
  Amortization of goodwill and other intangible assets...........           34.0           33.0             67.0
  Merger and integration.........................................           84.0                            84.0
  Other real estate..............................................           45.1          159.6            204.7
  Other..........................................................          391.6          621.8          1,013.4
                                                                   -------------   -------------   -------------
      Total noninterest expense..................................        1,246.3        2,209.2          3,455.5
                                                                   -------------   -------------   -------------
Income from continuing operations before income taxes and
 cumulative effect of changes in accounting principles...........          328.7          403.2            731.9
Applicable income taxes..........................................          115.7          120.9            236.6
                                                                   -------------   -------------   -------------
Income from continuing operations before cumulative effect of
 changes in accounting principles................................        $ 213.0   $      282.3          $ 495.3
                                                                   -------------   -------------   -------------
                                                                   -------------   -------------   -------------
Income from continuing operations before cumulative effect of
 changes in accounting principles applicable to common equity....        $ 181.4   $      223.1          $ 404.5
                                                                   -------------   -------------   -------------
                                                                   -------------   -------------   -------------
Earnings Per Common Share
  Average common and common equivalent shares....................    124,670,657                     312,722,239
  Income from continuing operations before cumulative effect of
   changes in accounting principles..............................        $  1.46                         $  1.29
                                                                   -------------                   -------------
                                                                   -------------                   -------------
</TABLE>

    See Notes to Unaudited Pro Forma Condensed Combined Financial Statements

                                      F-7
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
                         COMBINED FINANCIAL STATEMENTS

NOTE A:  ANNOUNCED MERGERS AND ACQUISITIONS

    On  August  6, 1995,  First Bank  System, Inc.  ("FBS") signed  a definitive
purchase agreement (the "Merger Agreement") to acquire FirsTier Financial,  Inc.
("FirsTier"),  a  regional financial  services holding  company based  in Omaha,
Nebraska, with approximately $3.6  billion in assets,  $2.8 billion in  deposits
and  $376 million  in shareholders' equity.  The agreement calls  for a tax-free
exchange of .8829 shares of FBS Common Stock for each common share of  FirsTier,
or  16.6 million shares  of FBS Common  Stock. The acquisition  of FirsTier (the
"Merger") will be accounted for by  FBS under the purchase method of  accounting
in  accordance with APB No. 16 and, accordingly, this method has been applied in
the unaudited  pro forma  condensed combined  financial statements.  Under  this
method  of accounting, the  purchase price will be  allocated to assets acquired
and liabilities assumed based  on their estimated fair  value at the closing  of
the  transaction.  The  historical  cost of  FirsTier's  assets  and liabilities
approximates  fair   value,   making  mark-to-market   adjustments   immaterial.
Accordingly,  the historical cost of FirsTier's assets and liabilities have been
combined  with  the  historical  consolidated  balance  sheet  of  FBS.  Certain
adjustments,  primarily to accrue for costs related to the Merger expected to be
incurred within  one  year  of closing,  are  not  material and  have  not  been
reflected in the unaudited pro forma condensed combined financial statements.

    On November 5, 1995, FBS signed a definitive agreement with First Interstate
Bancorp  ("First  Interstate")  pursuant  to which  a  wholly  owned acquisition
subsidiary of FBS  will be  merged with and  into First  Interstate, subject  to
certain conditions. First Interstate is an interstate financial services holding
company  based in Los  Angeles, California, with  approximately $55.1 billion in
assets, $48.2 billion in deposits and $4.0 billion in shareholders' equity.  The
agreement  calls for a tax-free exchange of  2.60 shares of FBS Common Stock for
each common share of  First Interstate, or approximately  200 million shares  of
FBS Common Stock. The First Interstate merger will be accounted for by FBS under
the pooling-of-interests method of accounting in accordance with APB No. 16 and,
accordingly,  this method has been applied  in the unaudited pro forma condensed
combined financial statements.  Under this  method of  accounting, the  recorded
assets,  liabilities, shareholders' equity, income and expenses of FBS and First
Interstate are combined and recorded at their historical amounts.

    FBS completed the acquisitions of  two commercial bank holding companies  --
Midwestern  Services,  Inc.  and  Southwest Holdings,  Inc.  --  both  in Omaha,
Nebraska on November 1, 1995. Together,  the two companies have total assets  of
approximately  $424  million and  deposits  of approximately  $380  million. The
acquisitions were  accounted for  under  the purchase  method of  accounting  as
described above.

    On  August 22, 1995, FBS signed a  definitive agreement to buy the corporate
trust relationships and accounts of BankAmerica Corporation ("Corporate Trust").

NOTE B:  BASIS OF PRESENTATION

    The Unaudited Pro  Forma Condensed Combined  Balance Sheet is  based on  the
unaudited  consolidated  balance  sheets  of  FBS,  FirsTier,  First Interstate,
Midwestern Services, Inc. and Southwest Holdings, Inc. as of September 30, 1995.
In addition, the Unaudited Pro  Forma Condensed Combined Balance Sheet  reflects
the   intangible  assets  related  to  the   purchase  of  the  Corporate  Trust
relationships  and  accounts.  The   Unaudited  Pro  Forma  Condensed   Combined
Statements  of  Income are  based on  the  unaudited consolidated  statements of
income of FBS, FirsTier and First Interstate for the nine months ended September
30, 1995, and the audited consolidated  statements of income for the year  ended
December  31, 1994.  The Unaudited  Pro Forma  Condensed Combined  Statements of
Income for the years ended December 31, 1993, and 1992, are based on the audited
consolidated statements of

                                      F-8
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
                   COMBINED FINANCIAL STATEMENTS (CONTINUED)
income of  FBS and  First Interstate  for such  years. The  Unaudited Pro  Forma
Condensed Combined Statements of Income do not include the results of operations
of  Midwestern Services,  Inc. and  Southwest Holdings,  Inc., or  the fees from
Corporate Trust, as they are immaterial.

    FBS expects to  achieve operating  cost savings by  various means  including
reductions  in staff,  consolidation of certain  data processing  and other back
office operations, and  consolidation and  elimination of  certain duplicate  or
excess  office facilities in  connection with the  mergers and acquisitions. The
operating cost savings are expected to be achieved in various amounts at various
times during the year subsequent to the closing and not ratably over, or at  the
beginning  or  end of,  such periods.  No  adjustment has  been included  in the
unaudited pro forma condensed combined financial statements for the  anticipated
operating  cost savings.  There can be  no assurance  that anticipated operating
cost savings will be achieved in the amounts or at the times anticipated.

    Certain amounts in the historical financial statements of FirsTier and First
Interstate have been  reclassified to  conform with  FBS's historical  financial
statement presentation.

    Financial  results for  FBS for  1994 include  merger-related items  with an
after-tax effect of $156.9 million ($1.15 per share) associated with the  merger
of Metropolitan Financial Corporation. Financial results for FBS in 1993 include
merger-related  charges  with an  after-tax effect  of  $50.0 million  ($.37 per
share) associated with the merger of Colorado National Bankshares, Inc. Included
in FBS's results of operations in  1992 are after-tax merger-related charges  of
$81.8  million ($.66  per share) associated  with the merger  of Western Capital
Investment Corporation  and  Bank  Shares  Incorporated.  The  First  Interstate
results of operations for the nine months ended September 30, 1995, and the year
ended  December 31,  1994, include after-tax  charges of $9.5  million and $87.6
million, respectively,  related  to the  adoption  of a  restructuring  plan  to
improve  efficiency and better position First Interstate for the introduction of
full interstate banking.

    The FBS results of  operations in 1992 also  include the effect of  adopting
two  new  accounting  standards:  Statement  of  Financial  Accounting Standards
("SFAS") No. 109,  "Accounting for Income  Taxes" and SFAS  No. 106,  "Employers
Accounting  for Postretirement Benefits Other than Pensions". First Interstate's
results of operations in 1993 reflect the adoption of SFAS No. 109 and SFAS  No.
106.

    Pro  forma  adjustments  related to  these  business  combinations represent
management's best  estimate based  on all  available information  at this  time.
These adjustments may change as additional information becomes available.

NOTE C:  SECURITIES AND FINANCING TRANSACTION

    FBS  anticipates recording FirsTier's investment  portfolio as available for
sale in connection  with the  application of purchase  accounting. In  addition,
substantially  all securities held  by First Interstate  will be reclassified to
available for  sale in  accordance with  the pending  one-time  reclassification
opportunity approved by the Financial Accounting Standards Board at its November
15,  1995 meeting.  Following this  one-time reclassification  and based  on its
preliminary analysis of First Interstate's financial condition, FBS  anticipates
selling  approximately $4.0 billion  of securities to  reduce First Interstate's
excess liquidity  and  repay  a  similar amount  of  FBS's  existing  short-term
borrowings.  This financing transaction is expected to occur at or shortly after
consummation of the First Interstate Transaction  and has been reflected in  the
Unaudited  Pro Forma  Condensed Combined  Financial Statements  as reductions in
held-to-maturity securities and in Fed funds purchased and securities sold under
agreements to repurchase.

                                      F-9
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
                   COMBINED FINANCIAL STATEMENTS (CONTINUED)

NOTE D:  ALLOWANCE FOR CREDIT LOSSES

    The unaudited pro forma condensed combined financial statements include  the
combined  allowance for credit losses of FBS and First Interstate. Estimation of
probable  loan  losses  involves  judgment,  including  the  collectibility   of
individual  loans, recent loss  experience and current  and anticipated economic
conditions. Management  of  FBS  and  First Interstate  each  believe  that  the
estimated  allowance for the individual banks falls within a reasonable range of
acceptability.  Furthermore,  the   impact  of  the   Merger  on  the   combined
organization cannot be fully assessed until appropriate information is available
on  a  combined basis  to make  an informed  judgment and  a decision  about the
adequacy of the  allowance for  credit losses. However,  FBS currently  projects
that  the allowance for credit losses could  be reduced up to approximately $250
million based  on  its  preliminary  analysis of  the  combined  allowance.  The
projection  assumes that  the greater  diversification of  the expanded 21-state
geographic territory and customer base will result in lower overall risk of  the
combined  organization.  The final  amount  of an  adjustment,  if any,  will be
determined after a review of the risk profile and allowance requirements of  the
New First Interstate following consummation of the Merger.

NOTE E:  GOODWILL AND OTHER INTANGIBLE ASSETS

    As  explained  in  Note B,  purchase  accounting adjustments  may  change as
additional information becomes  available. When the  ultimate allocation of  the
purchase  price  for  FirsTier  is made,  remaining  intangible  assets  will be
recorded. Based on current estimates,  the amount of intangible assets  relating
to  FirsTier is $338 million,  calculated as the purchase  price of $714 million
less FirsTier September 30, 1995 common equity of $376 million.

    Amortization expense  relating  to  the  Merger has  been  included  in  the
Unaudited  Pro Forma Condensed Combined Statements of Income for the nine months
ended September 30,  1995 and  the year  ended December  31, 1994.  Amortization
expense  was  calculated  based  on  the  intangible  asset  balance  using  the
straight-line method over  an average estimated  period of benefit  of 20  years
which  is comprised of 25  years for goodwill and  10 years for other intangible
assets. The final  allocation of  intangible assets between  goodwill and  other
intangible  assets,  as  well  as  the methods  of  amortization,  has  not been
determined. Subsequent changes to the purchase adjustments, as well as the final
allocation of the intangible assets between goodwill and other intangible assets
will result in an adjustment to goodwill, which will have a corresponding impact
on amortization expense.  Accordingly, pro  forma combined income  for the  nine
month  period ended  September 30,  1995 and the  year ended  December 31, 1994,
would also change, as well as the related pro forma combined earnings per  share
amounts.

NOTE F:  MERGER AND INTEGRATION ACCRUALS

    Certain  merger-related costs are expected to be recorded in connection with
the Merger. Accruals or adjustments have not, however, been reflected in the pro
forma condensed combined financial  statements related to this  at this time  as
these costs are not expected to be material.

    In  connection  with  the  First Interstate  merger,  FBS  expects  to incur
merger-related costs as  follows: $175  million for severance,  $40 million  for
occupancy/equipment  write-offs,  $210  million for  conversion  costs,  and $50
million for other merger-related charges.  These amounts have been reflected  in
the  Unaudited Pro  Forma Condensed Combined  Balance Sheet as  of September 30,
1995. These amounts will be recorded  in the financial statements in  accordance
with generally accepted accounting principles.

                                      F-10
<PAGE>
                            FIRST BANK SYSTEM, INC.
                      MERGER WITH FIRSTIER FINANCIAL, INC.
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
                   COMBINED FINANCIAL STATEMENTS (CONTINUED)

NOTE G:  SHAREHOLDERS' EQUITY

    In conjunction with the Merger, FBS will exchange .8829 shares of FBS Common
Stock for each share of common stock of FirsTier. As part of purchase accounting
adjustments,  retained earnings of FirsTier  have been eliminated. As previously
announced, FBS  intends to  repurchase a  number of  outstanding shares  of  FBS
Common  Stock approximately  equal to  one-half of the  number of  shares of FBS
Common Stock to be issued in connection  with the Merger. These shares, as  well
as  all  other  treasury shares,  will  be  issued in  connection  with purchase
acquisitions and other previously authorized purposes. Accordingly, the treasury
stock has been eliminated in the Unaudited Pro Forma Condensed Combined  Balance
Sheet.

    In  conjunction with  the First  Interstate merger,  FBS will  exchange 2.60
shares of FBS Common  Stock for each  outstanding share of  the common stock  of
First  Interstate. Common  stock in the  Unaudited Pro  Forma Condensed Combined
Balance Sheet has been adjusted to reflect the par value of FBS Common Stock  to
be  issued, with  a related  adjustment to  capital surplus.  First Interstate's
treasury stock will be retired in  conjunction with the First Interstate  merger
and  has been eliminated  in the Unaudited Pro  Forma Condensed Combined Balance
Sheet. Pro  forma  combined  retained  earnings  reflects  the  adjustments  for
anticipated merger-related costs as discussed above.

NOTE H:  INCOME TAX PROVISIONS

    The  income tax provision for adjustments related to the Merger reflected in
the Unaudited  Pro  Forma  Condensed  Combined Statements  of  Income  has  been
computed at FBS's effective combined federal and state marginal tax rate.

                                      F-11
<PAGE>
                                                                      APPENDIX A

                     AGREEMENT OF MERGER AND CONSOLIDATION

    AGREEMENT  OF MERGER AND CONSOLIDATION dated  August 6, 1995, by and between
FIRST BANK SYSTEM, INC., a Delaware corporation ("FBS"), and FIRSTIER FINANCIAL,
INC., a Nebraska corporation ("FFI").

    WHEREAS, the Boards of Directors of FBS  and FFI have determined that it  is
in  the  best interests  of FBS  and  FFI and  their respective  shareholders to
consummate the merger of FFI with and into FBS as described in Article 1 of this
Agreement (the "Merger");

    WHEREAS, as a  result of the  Merger, all of  the outstanding common  stock,
$5.00  par value,  of FFI  ("FFI Common  Stock") will  be converted  into common
stock, $1.25 par value, of FBS ("FBS Common Stock") on the terms and subject  to
the conditions set forth in this Agreement;

    WHEREAS,  (a)  FFI  directly  or  indirectly  owns  all  of  the  issued and
outstanding capital  stock  of  the  national  banking  associations  listed  on
Schedule  3.8 hereto (the  "National Banks") and  the state banking corporations
listed on Schedule 3.8 hereto (the "State Banks" and together with the  National
Banks,  the "Banking Subsidiaries") and (b)  FFI directly or indirectly owns all
of the  issued and  outstanding  capital stock  of  the corporations  listed  on
Schedule  3.8  hereto (the  "Nonbanking  Subsidiaries," and,  together  with the
Banking Subsidiaries, the "Subsidiaries");

    WHEREAS, as a condition  and inducement to FBS's  willingness to enter  into
this  Agreement, FBS and FFI  are entering into, on  the day after the execution
and delivery hereof,  a Stock Option  Agreement in the  form attached hereto  as
Exhibit  A (the "Stock Option  Agreement") pursuant to which  FFI shall grant to
FBS an option to purchase shares of FFI Common Stock; and

    WHEREAS, FBS and FFI desire that the Merger be made on the terms and subject
to the conditions set  forth in this Agreement  and qualify as a  reorganization
within  the meaning of Section  368(a) of the Internal  Revenue Code of 1986, as
amended (the "Code").

    NOW, THEREFORE,  in consideration  of  the representations,  warranties  and
covenants contained herein, the parties hereto agree as follows:

                                   ARTICLE 1

                                     MERGER

    Subject to the satisfaction or waiver of the conditions set forth in Article
6,  on  a date  mutually  satisfactory to  the  parties as  soon  as practicable
following receipt of all necessary  federal and state bank regulatory  approvals
(including  waiting periods),  FFI will  merge with  and into  FBS. FBS,  in its
capacity as  the corporation  surviving  the Merger,  is sometimes  referred  to
herein  as the "Surviving Corporation." The  Merger will be effected pursuant to
the provisions  of, and  with the  effect  provided in  Section 21-2076  of  the
Nebraska  Business Corporation Act (the "NBCA")  and Section 252 of the Delaware
General Corporation Law (the "DGCL").

    1.1.  EFFECT OF MERGER.

    (a) On  the Effective  Date (as  defined in  Section 1.1(d)),  FFI shall  be
merged  with and into  FBS, and the  separate existence of  FFI shall cease. The
Charter (as defined in Section 2.2) and Bylaws of FBS, as in effect  immediately
prior  to  the  Effective Date,  shall  be the  Charter  and the  Bylaws  of the
Surviving  Corporation  until  further  amended  as  provided  therein  and   in
accordance  with law. The directors and officers of FBS immediately prior to the
Effective Date will be the directors  and officers of the Surviving  Corporation
until their successors are elected and qualify.

    (b)  The Surviving Corporation shall thereupon and thereafter be responsible
and liable for all the liabilities, debts, obligations and penalties of each  of
FBS and FFI.

                                      A-1
<PAGE>
    (c) The Surviving Corporation shall thereupon and thereafter possess all the
rights,  privileges, immunities  and franchises,  of a  public as  well as  of a
private nature, of each of FBS and FFI; all property, real, personal and  mixed,
and  all debts due on whatever account, and  all and every other interest, of or
belonging to or due  to each of  FBS and FFI,  shall be taken  and deemed to  be
transferred  to and vested  in the Surviving Corporation  without further act or
deed; and the title to  any real estate or any  interest therein, vested in  FBS
and FFI, shall not revert or be in any way impaired by reason of the Merger.

    (d)  To  effect  the  Merger,  the  parties  hereto  will  cause appropriate
certificates of merger relating to the Merger to be filed with the Secretary  of
State  of Delaware and the Secretary of State of Nebraska. In addition, pursuant
to Sections 21-2070  and 21-2073 of  the NBCA, a  Plan of Merger  (the "Plan  of
Merger") containing certain terms of this Merger Agreement, in substantially the
form attached hereto as Exhibit B, shall be filed with the certificate of merger
filed  by FBS and FFI with the Secretary  of State of Nebraska. The Merger shall
be effective upon the filing of the  later of such certificates of merger to  be
filed.  As used herein, the  term "Effective Date" shall  mean the date on which
the Merger shall become effective as provided in the preceding sentence.

    1.2.  EFFECT ON OUTSTANDING SHARES OF FFI CAPITAL STOCK.

    To effectuate the  Merger and subject  to the terms  and conditions of  this
Agreement:

        (a)  each issued and  outstanding share of FFI  Common Stock (other than
    shares held as treasury stock of  FFI or shares held directly or  indirectly
    by FBS, other than shares held in a fiduciary capacity or in satisfaction of
    a  debt previously contracted)  shall be converted into  .8829 shares of FBS
    Common Stock,  and FBS  shall issue  to holders  of FFI  Common Stock  .8829
    shares  of FBS Common Stock subject to adjustment as provided in Section 1.3
    (the "Exchange Ratio"), in exchange for each such share of FFI Common Stock;

        (b) to  the extent  permitted by  applicable plans  and agreements,  all
    outstanding  options and  warrants to  purchase shares  of FFI  Common Stock
    shall be exchanged for options and warrants to purchase FBS Common Stock, or
    shares of FBS Common Stock, as provided in Section 5.13;

        (c) each share of FFI Common Stock held as treasury stock of FFI or held
    directly or  indirectly  by FBS,  other  than  shares held  in  a  fiduciary
    capacity  or  in  satisfaction of  a  debt previously  contracted,  shall be
    canceled, retired and cease  to exist, and no  exchange or payment shall  be
    made with respect thereof; and

        (d)  shares of FBS Common Stock issued in the Merger shall have attached
    to them rights as set forth in the Rights Agreement dated as of December 21,
    1988, between FBS  and First Chicago  Trust Company of  New York, as  Rights
    Agent, as amended (the "FBS Rights Agreement").

    1.3.   FBS COMMON  STOCK ADJUSTMENTS.   If, between the  date hereof and the
Effective Date, shares  of FBS Common  Stock shall be  changed into a  different
number   of  shares  or   a  different  class   of  shares  by   reason  of  any
reclassification, recapitalization, split-up, combination, exchange of shares or
readjustment, or  if a  stock dividend  or extraordinary  cash dividend  thereon
shall  be declared  with a record  date within  such period, then  the number of
shares of FBS Common  Stock issued to  holders of FFI  Common Stock pursuant  to
this  Agreement will be  appropriately and proportionately  adjusted so that the
number of such shares of  FBS Common Stock (or such  class of shares into  which
shares  of FBS Common Stock have been changed) that will be issued to holders of
FFI Common Stock will  equal the number of  such shares and other  consideration
that  holders  of  FFI  Common  Stock  would  have  received  pursuant  to  such
classification, recapitalization, split-up, combination,  exchange of shares  or
readjustment  had  the  record  date  therefor  been  immediately  following the
Effective Date.

    1.4.  RIGHTS OF HOLDERS OF FFI CAPITAL STOCK; CAPITAL STOCK OF FBS.

    (a) On and after the Effective Date and until surrendered for exchange, each
outstanding stock  certificate which  immediately prior  to the  Effective  Date
represented  shares of FFI Common Stock shall be deemed for all purposes, except
as  provided   in   Section   1.6(b),   to  evidence   ownership   of   and   to

                                      A-2
<PAGE>
represent  the number of whole shares of FBS Common Stock into which such shares
of FFI Common Stock  shall have been  converted, and the  record holder of  such
outstanding certificate shall, after the Effective Date, be entitled to vote the
shares of FBS Common Stock into which such shares of FFI Common Stock shall have
been  converted on  any matters  on which  the holders  of record  of FBS Common
Stock, as of any  date subsequent to  the Effective Date,  shall be entitled  to
vote.  In any matters  relating to such certificates,  FBS may rely conclusively
upon the  record of  shareholders maintained  by FFI  containing the  names  and
addresses of the holders of record of FFI Common Stock on the Effective Date.

    (b)  On and after the Effective Date,  each share of FBS Common Stock issued
and outstanding immediately prior to the  Effective Date shall remain an  issued
and existing share of common stock of the Surviving Corporation and shall not be
affected by the Merger.

    1.5.   NO FRACTIONAL SHARES.  No  fractional shares of FBS Common Stock, and
no certificates representing such  fractional shares, shall  be issued upon  the
surrender for exchange of certificates representing FFI Common Stock. In lieu of
any  fractional share,  FBS shall  pay to  each holder  of FFI  Common Stock who
otherwise would be entitled to receive a fractional share of FBS Common Stock an
amount of  cash (without  interest) determined  by multiplying  (a) the  closing
price  per  share  of FBS  Common  Stock on  the  Effective Date  times  (b) the
fractional share interest to which such holder would otherwise be entitled.

    1.6.  PROCEDURE FOR EXCHANGE OF STOCK.

    (a) After the Effective Date, holders of certificates theretofore evidencing
outstanding shares of FFI Common Stock,  upon surrender of such certificates  to
an  exchange agent appointed by FBS (the "Exchange Agent"), shall be entitled to
receive certificates representing the number of whole shares of FBS Common Stock
into  which  shares  of  FFI   Common  Stock  theretofore  represented  by   the
certificates  so surrendered  shall have been  converted as  provided in Section
1.2(a) and cash payments in  lieu of fractional shares,  if any, as provided  in
Section  1.5. As soon as  practicable after the Effective  Date, FBS shall cause
the Exchange  Agent  to mail  appropriate  and customary  transmittal  materials
(which shall specify that delivery shall be effected, and risk of loss and title
to  the certificates theretofore  representing shares of  FFI Common Stock shall
pass, only upon proper delivery of  such certificates to the Exchange Agent)  to
each holder of FFI Common Stock of record as of the Effective Date advising such
holder  of the effectiveness of the Merger and the procedure for surrendering to
the Exchange Agent outstanding certificates formerly evidencing FFI Common Stock
in exchange  for  new  certificates for  FBS  Common  Stock. FBS  shall  not  be
obligated  to deliver the consideration to which  any former holder of shares of
FFI Common  Stock is  entitled  as a  result of  the  Merger until  such  holder
surrenders the certificate or certificates representing such shares for exchange
as  provided in such transmittal materials and this Section 1.6(a). In addition,
certificates surrendered for exchange by any person deemed an "affiliate" of FFI
(as defined in Section 5.9), shall not be exchanged for such consideration until
FBS has received  a written agreement  from such person  as provided in  Section
5.9.  Upon  surrender, each  certificate evidencing  FFI  Common Stock  shall be
canceled.

    (b) Until outstanding  certificates formerly representing  FFI Common  Stock
are  surrendered  as provided  in Section  1.6(a),  no dividend  or distribution
payable to holders of record of FBS Common Stock shall be paid to any holder  of
such   outstanding  certificates,   but  upon  surrender   of  such  outstanding
certificates by such holder there shall be paid to such holder the amount of any
dividends or distributions (without interest)  theretofore paid with respect  to
such  whole shares of FBS  Common Stock, but not paid  to such holder, and which
dividends or distributions had a record  date occurring on or subsequent to  the
Effective Date.

    (c)  After the  Effective Date,  there shall  be no  further registration of
transfers  on  the   records  of  FFI   of  outstanding  certificates   formerly
representing  shares  of  FFI  Common  Stock  and,  if  a  certificate  formerly
representing such shares is presented  to FFI or FBS,  it shall be forwarded  to
the  Exchange Agent for cancellation  and exchange for certificates representing
shares of FBS Common Stock as herein provided.

                                      A-3
<PAGE>
    (d) All shares of FBS Common Stock and cash for any fractional shares issued
and paid upon the surrender for exchange of FFI Common Stock in accordance  with
the  above terms and conditions shall be deemed  to have been issued and paid in
full satisfaction of all rights pertaining to such shares of FFI Common Stock.

    (e) If  outstanding certificates  for shares  of FFI  Common Stock  are  not
surrendered  prior to the date on which the consideration to which any holder of
such shares is entitled as a result of the Merger would otherwise escheat to  or
become   the  property  of  any  governmental  unit  or  agency,  the  unclaimed
consideration shall, to the extent permitted by abandoned property and any other
applicable law,  become the  property  of FBS  (and to  the  extent not  in  its
possession  shall be paid over to it), free  and clear of all claims or interest
of any person  previously entitled  to such claims.  None of  FBS, the  Exchange
Agent  or any other  person shall be liable  to any former  holder of FFI Common
Stock for  any amount  delivered to  a public  official pursuant  to  applicable
abandoned property, escheat or similar laws.

    (f)  In the event any certificate for FFI Common Stock shall have been lost,
stolen or destroyed, the Exchange Agent shall issue and pay in exchange for such
lost, stolen or destroyed certificate, upon  the making of an affidavit of  that
fact  by the  holder thereof  in form  satisfactory to  FBS, such  shares of FBS
Common Stock and cash for fractional shares, if any, as may be required pursuant
to this Agreement; provided, however, that FBS  may, in its discretion and as  a
condition  precedent to the  issuance and payment thereof,  require the owner of
such lost, stolen or destroyed certificate to  deliver a bond in such sum as  it
may direct as indemnity against any claim that may be made against FBS, FFI, the
Exchange  Agent or any  other party with  respect to the  certificate alleged to
have been lost, stolen or destroyed.

                                   ARTICLE 2

                     REPRESENTATIONS AND WARRANTIES OF FBS

    FBS hereby represents and warrants to FFI as follows:

    2.1.  ORGANIZATION.  FBS is  a corporation duly organized, validly  existing
and  in good  standing under  the laws  of the  State of  Delaware, and  has the
requisite corporate power  to carry  on its business  as now  conducted. FBS  is
registered as a bank holding company under the Bank Holding Company Act of 1956,
as amended (the "Bank Holding Company Act").

    2.2.   AUTHORITY RELATIVE TO THIS AGREEMENT; NON-CONTRAVENTION.  FBS has the
requisite corporate power  and authority  to enter  into this  Agreement and  to
carry  out  its  obligations  hereunder.  The  execution  and  delivery  of this
Agreement by FBS and  the consummation by FBS  of the transactions  contemplated
hereby  have been duly authorized by the Board of Directors of FBS, and no other
corporate proceedings  on  the part  of  FBS  are necessary  to  authorize  this
Agreement  and  such transactions.  This Agreement  has  been duly  executed and
delivered by  FBS  and  constitutes  a valid  and  binding  obligation  of  FBS,
enforceable  in accordance with its  terms. FBS is not  subject to, or obligated
under, any provision of (a) its Charter (as hereinafter defined) or Bylaws,  (b)
any  agreement,  arrangement or  understanding,  (c) any  license,  franchise or
permit or  (d)  subject to  obtaining  the approvals  referred  to in  the  next
sentence,  any  law,  regulation,  order, judgment  or  decree,  which  would be
breached or  violated,  or  in  respect  of which  a  right  of  termination  or
acceleration or any encumbrance on any of its or any of its subsidiaries' assets
would  be created, by its execution,  delivery and performance of this Agreement
and the consummation by it of  the transactions contemplated hereby, other  than
any  such  breaches  or  violations  which  will  not,  individually  or  in the
aggregate, have a material adverse  effect on the business, operations,  results
of  operations or financial  condition of FBS  and its subsidiaries,  taken as a
whole, or the consummation of  the transactions contemplated hereby. Other  than
in  connection with obtaining any approvals required by the Bank Holding Company
Act, the  Securities Act  of 1933,  as amended,  and the  rules and  regulations
thereunder  (the "1933 Act"),  the Securities Exchange Act  of 1934, as amended,
and the rules and regulations thereunder (the "1934 Act"), rules of the New York
Stock  Exchange   (the   "NYSE"),   state   securities   or   blue   sky   laws,

                                      A-4
<PAGE>
and   the  rules  and  regulations  thereunder  ("Blue  Sky  Laws"),  rules  and
regulations of any applicable state insurance regulatory authority  ("Applicable
Insurance  Regulations"), the  Nebraska Department  of Banking  and Finance, the
Superintendent of Banking of Iowa, the  Banking Commissioner of Wyoming and  the
filing of certificates of merger with the Secretary of State of Delaware and the
Secretary  of State  of Nebraska, no  authorization, consent or  approval of, or
filing with, any public body, court or authority is necessary on the part of FBS
for the consummation by  it of the transactions  contemplated by this  Agreement
and  the  Stock  Option  Agreement, except  for  such  authorizations, consents,
approvals and filings  as to  which the  failure to  obtain or  make would  not,
individually  or  in  the  aggregate,  have a  material  adverse  effect  on the
business, operations, results of  operations or financial  condition of FBS  and
its  subsidiaries, taken  as a  whole, or  the consummation  of the transactions
contemplated hereby or by the Stock Option Agreement. As used in this Agreement,
the term "Charter" with respect to any corporation or banking association  shall
mean  those instruments  that at  that time constitute  its charter  as filed or
recorded  under  the  general  corporation  or  other  applicable  law  of   the
jurisdiction   of  incorporation  or  association,  including  the  articles  or
certificate of  incorporation or  association, any  amendments thereto  and  any
articles or certificate of merger or consolidation.

    2.3.   VALIDITY OF FBS COMMON  STOCK.  The shares of  FBS Common Stock to be
issued pursuant to this Agreement will be, when issued, duly authorized, validly
issued, fully paid and nonassessable and subject to no preemptive rights.

    2.4.   CAPITAL STOCK.   The  authorized  capital stock  of FBS  consists  of
200,000,000 shares of FBS Common Stock and 10,000,000 shares of preferred stock,
par  value $1.00 per share (the "FBS Preferred Stock"). As of June 30, 1995, (a)
135,632,324 shares of FBS  Common Stock were  issued and outstanding  (including
2,212,758  shares  of FBS  Common  Stock, par  value  $1.25 per  share,  held in
treasury), 8,293,286  shares of  FBS  Common Stock  were reserved  for  issuance
pursuant  to FBS's 1987 Stock Option Plan, 1991 Stock Incentive Plan, 1994 Stock
Incentive Plan, Restated Employee Stock Purchase Plan and Dividend  Reinvestment
Plan, the Western Capital Investment Corp. 1984 Stock Option and Incentive Plan,
the 1988 Equity Participation Plan, the MFC Stock Warrants and the Edina Realty,
Inc. 1995 Sales Associate Stock Purchase Plan and 3,952,000 shares of FBS Common
Stock  were reserved  for issuance upon  conversion of  FBS's $3.5625 Cumulative
Preferred Stock,  Series 1991A  (the "Series  1991A Preferred");  (b)  2,113,700
shares  of  Series  1991A  Preferred  were  outstanding;  (c)  12,750  shares of
Adjustable Rate  Cumulative  Preferred Stock,  Series  1990A were  reserved  for
issuance  pursuant  to certain  periodic stock  purchase  rights and  risk event
warrants  issued  by  FBS;  and  (d)   1,400,000  shares  of  Series  A   Junior
Participating Preferred Stock were reserved for issuance upon exercise of rights
to  purchase shares of  Junior Participating Preferred Stock  of FBS pursuant to
the FBS Rights Agreement.

    2.5.  1934 ACT REPORTS.

    (a) Prior to  the execution  of this Agreement,  FBS has  delivered or  made
available  to FFI complete  and accurate copies  of (a) FBS's  Annual Reports on
Form 10-K for the years ended December 31, 1992, 1993 and 1994, as amended  (the
"FBS  10-K  Reports"), as  filed  under the  1934  Act with  the  Securities and
Exchange Commission (the "SEC"), (b) all FBS proxy statements and annual reports
to shareholders used in connection with meetings of FBS shareholders held  since
January  1, 1993, and  (c) FBS's Quarterly  Report on Form  10-Q for the quarter
ended March 31, 1995 (the "FBS 10-Q  Report"), as filed under the 1934 Act  with
the  SEC. As of their  respective dates, such documents  (i) did not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary to make  the statements therein, in light of  the
circumstances under which they were made, not misleading and (ii) complied as to
form in all material respects with the applicable laws and rules and regulations
of  the SEC. Since January 1, 1992, FBS has filed in a timely manner all reports
that it was required to  file with the SEC pursuant  to the 1934 Act. After  the
date  hereof and prior to the Effective Date, documents filed by FBS pursuant to
Section 13,  14 or  15(d)  of the  1934  Act (i)  will  not contain  any  untrue
statement   of   a   material  fact   or   omit   to  state   a   material  fact

                                      A-5
<PAGE>
required to be stated  therein or necessary to  make the statements therein,  in
light  of the circumstances under  which they are made,  not misleading and (ii)
will comply as to  form in all  material respects with  the applicable laws  and
rules and regulations of the SEC.

    (b) The FBS financial statements (including any footnotes thereto) contained
in  the  FBS  10-K Reports  and  the FBS  10-Q  Report were,  and  FBS financial
statements (including any footnotes thereto) contained in any documents filed by
FBS after the date hereof  and prior to the  Effective Date pursuant to  Section
13,  14 or 15(d) of the 1934 Act  will be, prepared in accordance with generally
accepted accounting principles applied on a consistent basis during the  periods
involved  and fairly present,  or will fairly  present, as the  case may be, the
consolidated financial position  of FBS  and its  subsidiaries as  of the  dates
thereof  and the  consolidated results  of operations,  changes in shareholders'
equity and cash flows for the periods then ended.

    2.6.  NO MATERIAL ADVERSE CHANGES.  Since March 31, 1995, there has been  no
material  adverse  change in,  and no  event, occurrence  or development  in the
business of FBS  or its  subsidiaries that,  taken together  with other  events,
occurrences  and developments  with respect to  such business, has  had or would
reasonably be  expected to  have a  material adverse  effect on,  the  business,
operations,  results  of  operations  or  financial  condition  of  FBS  and its
subsidiaries, taken  as  a  whole, or  the  ability  of FBS  to  consummate  the
transactions contemplated hereby.

    2.7.   PROSPECTUS/PROXY STATEMENT.   At the  time the Registration Statement
(as  defined  in  Section  5.8(a))  becomes  effective  and  at  the  time   the
Prospectus/Proxy  Statement  (as defined  in Section  5.8(a))  is mailed  to the
shareholders of  FFI for  purposes of  obtaining the  approvals referred  to  in
Section  5.8(a) and at all times subsequent  to such mailing up to and including
the times of such approvals, the Registration Statement and the Prospectus/Proxy
Statement (including any amendments or supplements thereto), with respect to all
information set  forth therein  relating  to FBS,  the  FBS Common  Stock,  this
Agreement,  the Merger and all other  transactions contemplated hereby, will (a)
comply in all material respects with  applicable provisions of the 1933 Act  and
the 1934 Act and (b) not contain any untrue statement of a material fact or omit
to  state a material fact required to be stated therein or necessary to make the
statements contained therein,  in light  of the circumstances  under which  they
were made, not misleading.

    2.8.    LITIGATION.   There are  no actions,  suits, proceedings,  orders or
investigations pending or, to the best knowledge of FBS, threatened against  FBS
or  any  of  its  subsidiaries  which if  determined  adversely  to  FBS  or its
subsidiaries could reasonably be expected to  have a material adverse effect  on
the  financial condition, business,  operations or results  of operations of FBS
and its subsidiaries, taken as a whole, or would have a material adverse  effect
on the ability of FBS to consummate the transactions contemplated hereby.

    2.9.   REPORTS  AND FILINGS.   Since January  1, 1992,  each of  FBS and its
subsidiaries has filed each report or other filing it was required to file  with
any  federal  or  state banking  or  bank  holding company  or  other regulatory
authority having jurisdiction over it  (together with all exhibits thereto,  the
"FBS Regulatory Reports"), except for such reports and filings which the failure
to so file would not have a material adverse effect on the business, operations,
results  of operations or financial condition of FBS and its subsidiaries, taken
as a whole, or  the ability of FBS  to consummate the transactions  contemplated
hereby.  As of their  respective dates or  as subsequently amended  prior to the
date hereof, each  of the FBS  Regulatory Reports  was true and  correct in  all
material  respects and complied  in all material  respects with applicable laws,
rules and regulations.

    2.10.  REGULATORY APPROVALS.  As of the date hereof, FBS is not aware of any
reason that the regulatory approvals specified in Section 5.1 and required to be
obtained by FBS would not be obtained.

    2.11.  COMPLIANCE WITH LAWS; PERMITS.  FBS has complied in all respects with
all applicable  laws  and  regulations  of foreign,  federal,  state  and  local
governments  and all agencies thereof which affect  the business or any owned or
leased  properties  of  FBS  and  to  which  FBS  may  be  subject   (including,

                                      A-6
<PAGE>
without  limitation, the Occupational Safety and Health Act of 1970, the Federal
Deposit Insurance  Act, the  Real  Estate Settlement  Procedures Act,  the  Home
Mortgage  Disclosure  Act  of  1975,  the Fair  Housing  Act,  the  Equal Credit
Opportunity Act and  the Federal  Reserve Act, each  as amended,  and any  other
state or federal acts (including rules and regulations thereunder) regulating or
otherwise affecting employee health and safety or the environment), except where
failure  to  so comply  would  not, individually  or  in the  aggregate,  have a
material adverse effect on  the business, operations,  results of operations  or
financial  condition of  FBS, or  FBS's ability  to consummate  the transactions
contemplated hereby; and no  claims have been filed  by any such governments  or
agencies  against FBS alleging  such a violation  of any such  law or regulation
which have  not  been  resolved  to the  satisfaction  of  such  governments  or
agencies.  FBS  holds  all  of the  permits,  licenses,  certificates  and other
authorizations of  foreign,  federal,  state  and  local  governmental  agencies
required  for the conduct of  its business, except where  failure to obtain such
authorizations would  not, individually  or in  the aggregate,  have a  material
adverse  effect on the business, operations,  results of operations or financial
condition of  FBS,  or  the  ability  of  FBS  to  consummate  the  transactions
contemplated  hereby. FBS is not subject to  any cease and desist order, written
agreement or  memorandum  of  understanding with,  nor  is  it a  party  to  any
commitment  letter or similar undertaking to, nor  is it subject to any order or
directive by, nor is it a  recipient of any extraordinary supervisory  agreement
letter from, nor has it adopted any board resolutions at the request of, federal
or  state governmental authorities charged with the supervision or regulation of
banks or bank  holding companies or  engaged in the  insurance of bank  deposits
(collectively,  the "Bank  Regulators"), nor  has FBS  been advised  by any Bank
Regulator that it is contemplating issuing or requesting (or is considering  the
appropriateness  of issuing  or requesting)  any such  order, directive, written
agreement,  memorandum  of  understanding,  extraordinary  supervisory   letter,
commitment letter, board resolutions or similar undertaking.

                                   ARTICLE 3

                     REPRESENTATIONS AND WARRANTIES OF FFI

    FFI hereby represents and warrants to FBS as follows:

    3.1.   ORGANIZATION AND QUALIFICATION.  FFI is a corporation duly organized,
validly existing and in good standing under  the laws of the State of  Nebraska.
Each  of the  National Banks is  a national banking  association duly organized,
validly existing and in good  standing under the laws  of the United States  and
has  the requisite corporate  power to carry  on its business  as now conducted.
Each of the State Banks is  a state banking corporation duly organized,  validly
existing  and in good standing  under the laws of  the state of its organization
and has the requisite corporate power to carry on its business as now conducted.
Each of the  Nonbanking Subsidiaries  is a corporation  duly organized,  validly
existing  and in good standing under the laws of the state of its incorporation.
The copies of the Charter and Bylaws  of each of FFI and the Subsidiaries  which
have  been made available to FBS prior to the date of this Agreement are correct
and complete and reflect all amendments made thereto through such date. Each  of
FFI  and  the Subsidiaries  is licensed  or  qualified to  do business  in every
jurisdiction in which the nature of its respective business or its ownership  of
property requires it to be licensed or qualified, except where the failure to be
so  licensed or qualified would not have  or would not reasonably be expected to
have  a  material  adverse  effect  on  the  business,  operations,  results  of
operations or financial condition of FFI and the Subsidiaries, taken as a whole.

    3.2.   AUTHORITY RELATIVE TO THIS AGREEMENT; NON-CONTRAVENTION.  FFI has the
requisite corporate power  and authority  to enter  into this  Agreement and  to
carry  out  its  obligations  hereunder.  The  execution  and  delivery  of this
Agreement by FFI and  the consummation by FFI  of the transactions  contemplated
hereby  have been duly authorized  by the Board of  Directors of FFI and, except
for approval of  this Agreement and  the Merger  by the affirmative  vote of  at
least  two-thirds  of  the outstanding  shares  of  FFI Common  Stock,  no other
corporate proceedings  on  the part  of  FFI  are necessary  to  authorize  this
Agreement  and  such transactions.  This Agreement  has  been duly  executed and
delivered by  FFI  and  constitutes  a valid  and  binding  obligation  of  FFI,
enforceable  in accordance with  its terms. None  of FFI or  the Subsidiaries is
subject   to,    or    obligated   under,    any    provision   of    (a)    its

                                      A-7
<PAGE>
Charter  or Bylaws,  (b) any  agreement, arrangement  or understanding,  (c) any
license, franchise or permit or (d) subject to obtaining the approvals  referred
to  in the next sentence, any law,  regulation, order, judgment or decree, which
would be breached or violated, or in respect of which a right of termination  or
acceleration  or any encumbrance on  any of its assets  would be created, by the
execution, delivery or performance of this Agreement, the Stock Option Agreement
or the consummation of  the transactions contemplated  hereby or thereby,  other
than  any such  breaches or  violations which will  not, individually  or in the
aggregate, have a material adverse  effect on the business, operations,  results
of  operations or financial  condition of FFI  and the Subsidiaries,  taken as a
whole, or the consummation of  the transactions contemplated hereby or  thereby.
Other  than  in connection  with obtaining  any approvals  required by  the Bank
Holding Company Act, the 1933 Act, the 1934 Act, the rules of the NYSE, Blue Sky
Laws, Applicable Insurance Regulations, the  Nebraska Department of Banking  and
Finance,  the Superintendent  of Banking  of Iowa,  the Banking  Commissioner of
Wyoming and the filing of certificates of merger with the Secretary of State  of
Delaware  and the Secretary  of State of Nebraska,  no authorization, consent or
approval of, or filing with, any public body, court or authority is necessary on
the part of FFI or  any of the Subsidiaries for  the consummation by FFI of  the
transactions  contemplated  by this  Agreement  or the  Stock  Option Agreement,
except for such authorizations, consents, approvals and filings as to which  the
failure  to obtain or make  would not, individually or  in the aggregate, have a
material adverse effect on  the business, operations,  results of operations  or
financial  condition  of FFI  and the  Subsidiaries,  taken as  a whole,  or the
consummation of  the transactions  contemplated hereby  or by  the Stock  Option
Agreement.

    3.3.   CAPITALIZATION.   The authorized  and issued  and outstanding capital
stock of each of FFI and the Subsidiaries as of the date hereof is correctly set
forth on Schedule  3.3. The issued  and outstanding shares  of capital stock  of
each of FFI and the Subsidiaries are duly authorized, validly issued, fully paid
and  nonassessable  and have  not  been issued  in  violation of  any preemptive
rights. Except as  disclosed on Schedule  3.3 and as  permitted in Section  4.1,
there   are  no  options,  warrants,  conversion  privileges  or  other  rights,
agreements, arrangements  or commitments  obligating FFI  or any  Subsidiary  to
issue, sell, purchase or redeem any shares of its capital stock or securities or
obligations  of any kind convertible into or  exchangeable for any shares of its
capital stock or of  any of its  subsidiaries or affiliates,  nor are there  any
stock  appreciation, phantom or  similar rights outstanding  based upon the book
value or any other attribute of  any of the capital stock  of FFI or any of  the
Subsidiaries,  or  the  earnings  or  other attributes  of  FFI  or  any  of the
Subsidiaries. FFI has heretofore delivered to FBS true and correct copies of all
such agreements, arrangements (including all stock option plans) or  commitments
identified on Schedule 3.3.

    3.4.   1934 ACT REPORTS.  Prior to  the execution of this Agreement, FFI has
delivered or made  available to FBS  complete and accurate  copies of (a)  FFI's
Annual Reports on Form 10-K for the years ended December 31, 1992, 1993 and 1994
(the  "FFI 10-K Reports") as filed under the  1934 Act with the SEC, (b) all FFI
proxy statements  and annual  reports to  shareholders used  in connection  with
meetings  of FFI shareholders held since January 1, 1992 and (c) FFI's Quarterly
Report on Form 10-Q for the quarter ended March 31, 1995 (the "FFI 10-Q Report")
as filed under the  1934 Act with  the SEC. As of  their respective dates,  such
documents (i) did not contain any untrue statement of a material fact or omit to
state  a material fact  required to be  stated therein or  necessary to make the
statements therein, in light  of the circumstances under  which they were  made,
not  misleading and (ii) complied  as to form in  all material respects with the
applicable laws and rules and regulations of the SEC. Since January 1, 1992, FFI
has filed in a timely manner all reports  that it was required to file with  the
SEC  pursuant to the 1934 Act. After the  date hereof and prior to the Effective
Date, documents filed by FFI pursuant to Section 13, 14 or 15(d) of the 1934 Act
(i) will not contain any untrue statement of a material fact or omit to state  a
material  fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they are made, not misleading
and (ii) will comply  as to form  in all material  respects with the  applicable
laws and rules and regulations of the SEC.

                                      A-8
<PAGE>
    3.5.   FINANCIAL  STATEMENTS.  The  FFI financial  statements (including any
footnotes thereto) contained  in the FFI  10-K Reports and  the FFI 10-Q  Report
have  been,  and  FFI  financial statements  (including  any  footnotes thereto)
contained in any documents filed by FFI  after the date hereof and prior to  the
Effective  Date pursuant  to Section 13,  14 or 15(d)  of the 1934  Act will be,
prepared in accordance with generally accepted accounting principles applied  on
a consistent basis during the periods involved and fairly present or will fairly
present,  as the case may be, the consolidated financial position of FFI and the
Subsidiaries as of the dates thereof  and the results of operations, changes  in
shareholders'  equity  and  cash  flows  for the  periods  then  ended.  FFI has
furnished FBS with copies of  the consolidated balance sheet  of FFI as of  June
30,  1995 (the "Latest FFI Balance Sheet")  and the related statements of income
and changes in shareholders' equity for the six months ended June 30, 1995  (the
"Related  FFI Statements").  The Latest  FFI Balance  Sheet and  the Related FFI
Statements have been prepared in  accordance with generally accepted  accounting
principles and fairly present the consolidated financial position of FFI and the
Subsidiaries,  subject to normal recurring year-end  adjustments, as of the date
thereof and the results  of operations and changes  in shareholders' equity  for
the six-month period then ended.

    3.6.  LOANS.

    (a)  The documentation relating to each loan made by each Banking Subsidiary
and relating to all security interests,  mortgages and other liens with  respect
to  all collateral  for each such  loan, taken as  a whole, are  adequate in all
material respects for the  enforcement of the material  terms of each such  loan
and  of the related security interests, mortgages  and other liens. The terms of
each such loan and of the related security interests, mortgages and other  liens
comply  in all material respects with all applicable laws, rules and regulations
(including, without  limitation, laws,  rules and  regulations relating  to  the
extension of credit).

    (b)  Except as set forth in Schedule 3.6, (i) as of June 30, 1995, there are
no loans, leases, other extensions of credit or commitments to extend credit  of
any  Banking Subsidiary that have been or,  to FFI's knowledge, should have been
classified by any such Banking Subsidiary as non-accrual, as restructured, as 90
days past due, as  still accruing and doubtful  of collection or any  comparable
classification,  (ii) FFI has provided to FBS  true, correct and complete in all
material respects  written information  concerning the  loan portfolios  of  the
Banking Subsidiaries, and (iii) no material information with respect to the loan
portfolios of the Banking Subsidiaries has been withheld from FBS.

    3.7.   REPORTS  AND FILINGS.   Since January  1, 1992,  each of  FFI and the
Subsidiaries has filed each report or other filing that it was required to  file
with  any federal  or state  banking, bank  holding company  or other applicable
regulatory authorities having jurisdiction over  it (together with all  exhibits
thereto,  the  "FFI Regulatory  Reports"). As  of their  respective dates  or as
subsequently amended  prior to  the  date hereof,  each  of the  FFI  Regulatory
Reports  was  true and  correct in  all  material respects  and complied  in all
material respects with applicable laws, rules and regulations.

    3.8.  SUBSIDIARIES.  Schedule 3.8  correctly sets forth the jurisdiction  of
incorporation  of each Subsidiary.  All of the issued  and outstanding shares of
capital stock of each Subsidiary  are owned by FFI free  and clear of any  lien,
pledge,  security  interest,  encumbrance  or charge  of  any  kind,  other than
encumbrances arising as a result of requisite regulatory approvals for transfer.
Except for the stock of the Subsidiaries owned by FFI and as otherwise disclosed
on Schedule  3.8,  neither FFI  nor  any of  the  Subsidiaries owns  any  stock,
partnership interest, joint venture interest or any other security issued by any
other  corporation,  organization  or  entity, except  securities  owned  by the
Banking Subsidiaries in the ordinary course of its business.

    3.9.   ABSENCE  OF UNDISCLOSED  LIABILITIES.    All of  the  obligations  or
liabilities  (whether accrued, absolute,  contingent, unliquidated or otherwise,
whether due or to become  due, and regardless of  when asserted) arising out  of
transactions  or  events heretofore  entered into,  or  any action  or inaction,
including Taxes  (as defined  in Section  3.13) with  respect to  or based  upon
transactions  or  events heretofore  occurring  ("Liabilities"), required  to be
reflected on the Latest FFI Balance Sheet in

                                      A-9
<PAGE>
accordance with generally accepted accounting principles have been so reflected.
FFI and the  Subsidiaries have  no Liabilities except  (a) as  reflected on  the
Latest  FFI Balance Sheet, (b)  Liabilities which have arisen  after the date of
the Latest  FFI  Balance  Sheet  in  the ordinary  course  of  business  or  (c)
Liabilities  which would not have, individually  or in the aggregate, a material
adverse effect on the business,  operations, results of operations or  financial
condition  of FFI and the  Subsidiaries, taken as a whole.  As of June 30, 1995,
Schedule 3.9  sets  forth all  agreements  or commitments  binding  the  Banking
Subsidiaries to extend credit in the amount per "one borrower" (as defined in 12
C.F.R. Section 563.93) of $500,000 or more.

    3.10.    NO MATERIAL  ADVERSE CHANGES.   Since  the date  of the  Latest FFI
Balance Sheet,  there has  been no  material adverse  change in,  and no  event,
occurrence or development in the business of FFI or the Subsidiaries that, taken
together  with other events,  occurrences and developments  with respect to such
business, has had  or would reasonably  be expected to  have a material  adverse
effect on the business, operations, results of operations or financial condition
of  FFI  and the  Subsidiaries,  taken as  a  whole, or  the  ability of  FFI to
consummate the transactions contemplated hereby.

    3.11.  ABSENCE OF CERTAIN DEVELOPMENTS.   Except as set forth in the  Latest
FFI  Balance Sheet and  the Related FFI  Statements or on  Schedule 3.11, unless
otherwise expressly contemplated or permitted  by this Agreement, in the  period
from  June 30, 1995 to the date hereof,  neither FFI nor any of the Subsidiaries
has (i) sold or issued any  corporate debt securities or sold, issued,  reissued
or  increased its shares of its capital  stock other than in connection with the
exercise of stock options;  (ii) granted any option,  phantom stock unit,  stock
appreciation  right  for or  related  to the  purchase  of capital  stock; (iii)
declared or set aside or paid any  dividend or other distribution in respect  of
its  capital stock, except  as permitted pursuant to  Section 4.1(a) (and except
for declaration and  payment of its  regular quarterly dividend  for the  second
quarter  of  1995)  hereof, or  directly  or indirectly  purchased,  redeemed or
otherwise acquired any  shares of such  stock; (iv) incurred  any obligation  or
liability (absolute or contingent) except obligations or liabilities incurred in
the  ordinary course of business, or mortgaged,  pledged or subjected to lien or
encumbrance (other than statutory liens for taxes not yet delinquent and banking
transactions conducted in the ordinary course of business) any of its assets  or
properties  with an aggregate market value in excess of $250,000; (v) discharged
or satisfied  any  material  lien  or encumbrance  or  paid  any  obligation  or
liability  (absolute or contingent), other  than current liabilities included in
the Latest  FFI  Balance Sheet,  current  liabilities incurred  since  the  date
thereof  in the ordinary course of business and liabilities incurred in carrying
out the transactions  contemplated by  this Agreement; (vi)  sold, exchanged  or
otherwise disposed of capital assets with an aggregate market value in excess of
$250,000;  or acquired  any single  or group of  related capital  assets with an
aggregate market  value in  excess  of $250,000;  (vii) made  any  extraordinary
officers' salary increase or wage increase, entered into any employment contract
with  any officer  or salaried  employee or  instituted or  amended any employee
welfare, bonus, stock option, profit-sharing,  retirement or other benefit  plan
or  arrangement; (viii) suffered any damage, destruction or loss, whether or not
covered by insurance, that  has had a material  adverse effect on the  business,
operations,  results  of  operations  or  financial  condition  of  FFI  and the
Subsidiaries, taken as  a whole, or  waived any  rights of value  which, in  the
aggregate,  have  had such  a  material adverse  effect;  (ix) entered  into any
agreement or arrangement granting any preferential right to purchase any of  its
material  assets, properties or rights or requiring  the consent of any party to
the transfer and assignment of any  such material assets, properties or  rights;
(x)  entered into  any other  material transaction  (other than  in the ordinary
course of  business) except  as  expressly contemplated  by this  Agreement;  or
agreed to do any of the foregoing.

    3.12.  PROPERTIES.

    (a)  Each of FFI and the Subsidiaries  owns good and marketable title to all
of the real property and all  of the personal property, fixtures, furniture  and
equipment  reflected on the Latest FFI Balance  Sheet or acquired since the date
thereof (other than real property reflected  on the Latest FFI Balance Sheet  as
REO),  free and clear of all liens and encumbrances, except for (i) mortgages on
real property set  forth on  Schedule 3.12(a),  (ii) encumbrances  which do  not
materially affect the value of, or

                                      A-10
<PAGE>
interfere with the past or future use or ability to convey, the property subject
thereto  or  affected  thereby,  (iii)  liens  for  current  taxes  and  special
assessments not yet  due and  payable, (iv)  leasehold estates  with respect  to
multi-tenant buildings owned by FFI or any of the Subsidiaries, which leases are
identified  on Schedule 3.12(a), and (v) property  disposed of since the date of
the Latest FFI Balance Sheet in the ordinary course of business.

    (b) Schedule 3.12(b) correctly sets forth a brief description, including the
term, of each lease  for real or personal  property to which FFI  or any of  the
Subsidiaries  is a  party as  lessee with respect  to (i)  each individual lease
which involves a remaining aggregate balance  of lease payments payable of  more
than  $100,000  or  any  group  of related  leases  which  involves  a remaining
aggregate balance of  lease payments payable  of more than  $100,000, (ii)  each
lease  which is a "material  contract" within the meaning  of Item 601(b)(10) of
Regulation S-K promulgated by the SEC or (iii) each lease which was not  entered
into  in the ordinary course of business. FFI has delivered or made available to
FBS complete and accurate  copies of each of  the leases described on  Schedules
3.12(a)  and 3.12(b), and none of such  leases has been modified in any material
respect, except  to the  extent that  such modifications  are disclosed  by  the
copies  delivered to FBS. The leases  described on Schedules 3.12(a) and 3.12(b)
are in full force and  effect. FFI or one of  the Subsidiaries (if lessee  under
such  lease)  has  a valid  and  existing  leasehold interest  under  each lease
described on Schedule 3.12(b)  for the term set  forth therein. With respect  to
the   leases  described  on  Schedule  3.12(b),  neither  FFI  nor  any  of  the
Subsidiaries is  in  default,  nor,  to  the  best  knowledge  of  FFI  and  the
Subsidiaries,  are any of  the other parties  to any of  such leases in default,
and, to the best knowledge of FFI and the Subsidiaries, no circumstances (not in
the control of  FFI and the  Subsidiaries) exist  which could result  in such  a
default  under  any  of  such leases.  To  the  best knowledge  of  FFI  and the
Subsidiaries, there has been  no cancellation, breach  or anticipated breach  by
any other party to any lease described on Schedule 3.12(a) or 3.12(b).

    (c)  All of the  buildings, fixtures, furniture  and equipment necessary for
the conduct of  the business of  FFI and each  of the Subsidiaries  are in  good
condition  and repair in all material respects, ordinary wear and tear excepted,
and are  usable  in  the ordinary  course  of  business. Each  of  FFI  and  the
Subsidiaries  owns,  or  leases  under valid  leases,  all  buildings, fixtures,
furniture, personal property, land improvements and equipment necessary for  the
conduct of its business as it is presently being conducted.

    (d)  Except as set forth  in Schedules 3.12(d) and  3.12(e), neither FFI nor
any of the Subsidiaries nor any of the  buildings owned or leased by FFI or  any
of  the Subsidiaries is in violation of any applicable zoning ordinance or other
law, regulation or requirement relating to the operation of any properties  used
in  the  operation of  its business,  including, without  limitation, applicable
environmental  protection  laws   and  regulations,   which  violations   would,
individually  or  in  the  aggregate,  have a  material  adverse  effect  on the
business, operations, results of  operations or financial  condition of FFI  and
the  Subsidiaries taken as a whole; and  neither FFI nor any of the Subsidiaries
has received  any notice  of any  such violation,  or of  the existence  of  any
condemnation proceeding with respect to any properties owned or leased by FFI or
any  of the Subsidiaries. Except as set  forth in Schedule 3.12(d), no Hazardous
Materials (as defined below) have been deposited or disposed of in, on or  under
FFI's  or  any  of  the  Subsidiaries'  owned  or  leased  properties (including
properties owned, managed or controlled by any Banking Subsidiary in  connection
with  its lending or fiduciary operations) during the period in which FFI or any
of the Subsidiaries has  owned, occupied, managed,  controlled or operated  such
properties.  Except as set forth  on Schedule 3.12(d), to  the best knowledge of
FFI and the Subsidiaries, no prior owners, occupants or operators of all or  any
part  of FFI's or any of the Subsidiaries' owned or leased properties (including
properties owned, managed or controlled by any Banking Subsidiary in  connection
with its lending or fiduciary operations) ever used such properties as a dump or
gasoline  service station, or deposited, disposed  of or allowed to be deposited
or disposed  of  in, on  or  under  such properties  any  hazardous  substances,
Hazardous  Materials.  No asbestos  or any  material amount  of ureaformaldehyde
materials  exists  in   or  on  any   of  FFI's  or   the  Subsidiaries'   owned

                                      A-11
<PAGE>
or  leased properties (including properties owned,  managed or controlled by any
Banking Subsidiary in connection with its lending or fiduciary operations),  and
no  electrical  transformers or  capacitors, other  than  those owned  by public
utility companies, on such properties contain any PCBs.

    As used  in  this  Section  3.12(d), the  following  terms  shall  have  the
following meanings:

        (i)  "Hazardous  Materials"  means  any  dangerous,  toxic  or hazardous
    pollutant, contaminant, chemical, waste, material or substance as defined in
    or governed by any  federal, state or local  law, statute, code,  ordinance,
    regulation,  rule  or  other  requirement  relating  to  such  substance  or
    otherwise relating to the environment  or human health or safety,  including
    without  limitation any waste, material, substance, pollutant or contaminant
    that might cause any injury to human health or safety or to the  environment
    or  might subject FFI or any Subsidiary or, after the Effective Date, FBS or
    any of its affiliates, or any of their respective directors or officers,  to
    any imposition of costs or liability under any Environmental Laws.

        (ii) "Environmental Laws" means all applicable federal, state, local and
    foreign  laws,  rules,  regulations,  codes,  ordinances,  orders,  decrees,
    directives,  permits,  licenses   and  judgments   relating  to   pollution,
    contamination or protection of health, safety or the environment (including,
    without  limitation, all applicable federal,  state, local and foreign laws,
    rules, regulations, codes, ordinances, orders, decrees, directives, permits,
    licenses and judgments relating to Hazardous  Materials in effect as of  the
    date of this Agreement).

    (e)  Except as set  forth in Schedule  3.12(e), there are  no aboveground or
underground tanks (excluding hot water storage or propane tanks) located  under,
in  or about, nor, to the best knowledge of FFI and the Subsidiaries, have there
ever been any such tanks located under, in or about, any of FFI's or any of  the
Subsidiaries' owned or leased properties (including properties owned, managed or
controlled by any Banking Subsidiary in connection with its lending or fiduciary
operations).

    3.13.   TAX MATTERS.  Except as disclosed on Schedule 3.13, each of FFI, the
Subsidiaries and  all  members  of any  consolidated,  affiliated,  combined  or
unitary  group of which FFI or any of the Subsidiaries is a member have filed or
will file  all Tax  (as  hereinafter defined)  and  Tax information  returns  or
reports  required to  be filed (taking  into account  permissible extensions) by
them on or prior to the Effective Date,  and have paid (or have accrued or  will
accrue,  prior to  the Effective  Date, amounts  for the  payment of)  all Taxes
relating to the  time periods  covered by such  returns and  reports. Except  as
disclosed  on  Schedule  3.13,  the accrued  taxes  payable  accounts  for Taxes
reflected on the Latest FFI Balance Sheet (or the notes thereto) are  sufficient
for  the payment of all unpaid Taxes of  FFI and the Subsidiaries accrued for or
applicable to  all periods  ended on  or prior  to the  date of  the Latest  FFI
Balance  Sheet or which may subsequently be  determined to be owing with respect
to any such period. Except as disclosed on Schedule 3.13, neither FFI nor any of
the Subsidiaries has waived any statute of limitations with respect to Taxes  or
agreed  to any extension of time with respect to an assessment or deficiency for
Taxes. Each of FFI and the Subsidiaries has paid or will pay in a timely  manner
and  as required by law all Taxes due and payable by it or which it is obligated
to withhold  from  amounts owing  to  any employee  or  third party.  Except  as
disclosed on Schedule 3.13, all Taxes which will be due and payable, whether now
or  hereafter, for  any period  ending on, prior  to or  including the Effective
Date, shall have been paid by or on behalf of FFI and the Subsidiaries or  shall
be  reflected  on  the books  of  FFI and  the  Subsidiaries as  an  accrued Tax
liability determined in a manner which is consistent with past practices and the
Latest FFI Balance Sheet,  without taking account of  the Merger. The  aggregate
amount  of all such accruals for Tax liability as of the date hereof will be set
forth on Schedule 3.13  (and a good  faith estimate of such  accruals as of  the
Effective Date shall be provided in writing to FBS at least 10 days prior to the
Effective  Date). In the five years prior to  the date of this Agreement, no Tax
returns of  FFI  or the  Subsidiaries  have  been audited  by  any  governmental
authority  other than as disclosed on Schedule 3.13; and, except as set forth on
Schedule 3.13, there are no unresolved questions, claims or disputes asserted by
any relevant taxing authority concerning the  liability for Taxes of FFI or  the
Subsidiaries. Neither FFI nor any of the Subsidiaries has made an election under
Section 341(f) of the Code for any taxable years not yet closed for statute of

                                      A-12
<PAGE>
limitations  purposes. In the five years prior to the date of this Agreement, no
demand or claim has been  made against FFI or  the Subsidiaries with respect  to
any  Taxes  arising  out of  membership  or participation  in  any consolidated,
affiliated, combined or unitary  group of which FFI  or the Subsidiaries was  at
any time a member. For purposes of this Agreement, the term "Tax" shall mean any
federal,  state,  local or  foreign  income, gross  receipts,  license, payroll,
employment, excise, severance, stamp, occupation, premium, property or  windfall
profits   tax,  environmental  tax,  customs   duty,  capital  stock,  deposits,
franchise, employees'  income  withholding,  foreign  or  domestic  withholding,
social security, unemployment, disability, workers' compensation,
employment-related  insurance,  real  property, personal  property,  sales, use,
transfer, value  added,  alternative  or  add-on  minimum  or  other  tax,  fee,
assessment  or charge of any kind  whatsoever, including any interest, penalties
or additions to, or additional amounts in respect of the foregoing, for each  of
FFI,  the Subsidiaries and all members of any consolidated, affiliated, combined
or unitary group of which FFI or any Subsidiary is a member.

    3.14.  CONTRACTS AND COMMITMENTS.

    (a) Except  as set  forth  on Schedule  3.14, neither  FFI  nor any  of  the
Subsidiaries  (i) is a party to  any collective bargaining agreement or contract
with any labor union, (ii)  is a party to any  written or oral contract for  the
employment of any officer, individual employee or other person on a full-time or
consulting  basis, or relating to severance pay  for any such person, (iii) is a
party to any  written or oral  agreement or understanding  to repurchase  assets
previously  sold  (or  to indemnify  or  otherwise compensate  the  purchaser in
respect of such assets), except for securities sold under a repurchase agreement
providing for a repurchase date 30 days or less after the purchase date, (iv) is
a party to any (A)  contract or group of related  contracts with the same  party
for  the purchase or sale  of products or services,  under which the undelivered
balance of such products and services has a purchase price in excess of $250,000
for any individual contract  or $250,000 for any  group of related contracts  in
the  aggregate, (B)  other contract  which is  a "material  contract" within the
meaning of Item  601(b)(10) of  Regulation S-K promulgated  by the  SEC, or  (C)
other agreement which is not entered into in the ordinary course of business and
which  is  not  disclosed  on  Schedules 3.12(a)  or  3.12(b),  or  (v)  has any
commitments for capital expenditures in excess of $250,000.

    (b) Except as disclosed on Schedule 3.14,  (i) to the best knowledge of  FFI
and  the  Subsidiaries, since  the  date of  the  Latest FFI  Balance  Sheet, no
customer has indicated that it will stop  or decrease the rate of business  done
with  FFI or any of the Subsidiaries  (except for changes in the ordinary course
of such business) that would, individually or in the aggregate, have a  material
adverse  effect on the business, operations,  results of operations or financial
condition of FFI and the  Subsidiaries, taken as a whole;  (ii) each of FFI  and
the  Subsidiaries has performed  all obligations required to  be performed by it
prior to the  date hereof in  connection with the  contracts or commitments  set
forth on Schedule 3.14, and none of FFI or any of the Subsidiaries is in receipt
of  any claim of default under any  contract or commitment set forth on Schedule
3.14, except for any failures to perform, breaches or defaults which would  not,
individually  or  in  the  aggregate,  have a  material  adverse  effect  on the
business, operations, results of  operations or financial  condition of FFI  and
the  Subsidiaries taken as a whole; (iii) none of FFI or any of the Subsidiaries
has any present expectation  or intention of not  fully performing any  material
obligation  pursuant to any  contract or commitment set  forth on Schedule 3.14;
and (iv) to the best  knowledge of FFI and the  Subsidiaries, there has been  no
cancellation, breach or anticipated breach by any other party to any contract or
commitment  set forth on  Schedule 3.14, except for  any cancellation, breach or
anticipated breach which  would not, individually  or in the  aggregate, have  a
material  adverse effect on  the business, operations,  results of operations or
financial condition of FFI and the Subsidiaries, taken as a whole.

    3.15.  LITIGATION.   Except  as set  forth on  Schedule 3.15,  there are  no
actions,  suits, proceedings, orders  or investigations pending  or, to the best
knowledge of FFI  and the  Subsidiaries, threatened against  FFI or  any of  the
Subsidiaries,  at law or in equity, or before  or by any federal, state or other
governmental department, commission, board,  bureau, agency or  instrumentality,
domestic  or foreign,  except for  such actions,  suits, proceedings,  orders or
investigations which are not reasonably likely  to result in losses or  expenses
that    would   have    a   material    adverse   effect    on   the   business,

                                      A-13
<PAGE>
operations, results  of  operations  or  financial  condition  of  FFI  and  the
Subsidiaries,  taken as a whole.  Except as set forth  on Schedule 3.15, none of
the matters set forth on such  Schedule, individually or in the aggregate,  will
have  or could reasonably be  expected to have a  material adverse effect on the
business, operations, results of  operations or financial  condition of FFI  and
the Subsidiaries, taken as a whole.

    3.16.   NO BROKERS OR FINDERS.   Except as disclosed on Schedule 3.16, there
are no claims for brokerage commissions, finders' fees, investment advisory fees
or similar compensation in connection with the transactions contemplated by this
Agreement based on any arrangement, understanding, commitment or agreement  made
by or on behalf of FFI or any of the Subsidiaries.

    3.17.   EMPLOYEES.  FFI  and each of the  Subsidiaries has complied with all
laws relating to the employment of labor, including provisions thereof  relating
to  wages, hours,  equal opportunity,  collective bargaining, non-discrimination
and the payment of social security and  other taxes, except where failure to  so
comply  would not,  individually or  in the  aggregate, have  a material adverse
effect on the business, operations, results of operations or financial condition
of FFI and the Subsidiaries, taken as a whole.

    3.18.  EMPLOYEE BENEFIT PLANS.

    (a)  DEFINITIONS.  For the purposes of this Section 3.18, unless the context
clearly requires otherwise,  the term  "Plan" or "Plans"  includes all  employee
benefit  plans  as defined  in Section  3(3) of  the Employee  Retirement Income
Security Act of 1974, as amended  ("ERISA"), and all other benefit  arrangements
(including,  without  limitation,  any  employment  agreement  or  any  program,
agreement, policy or commitment providing  for insurance coverage of  employees,
workers'  compensation, disability benefits, supplemental unemployment benefits,
vacation benefits, retirement benefits,  life, health, disability or  accidental
benefits)  applicable to  the employees  of FFI or  any of  the Subsidiaries, to
which FFI or  any of the  Subsidiaries contribute, or  which FFI or  any of  the
Subsidiaries  have committed to implement for  their employees prior to the date
of this  Agreement. Unless  the context  clearly requires  otherwise, "Plan"  or
"Plans"  shall also include any similar program or arrangement maintained by any
organization affiliated by  ownership with FFI  or any of  the Subsidiaries  for
which  FFI or any  of the Subsidiaries  are or could  be completely or partially
liable for the funding  or the administration  either as a matter  of law or  by
agreement  but excluding customers of the trust departments of affiliates of FFI
where there is no ownership affiliation between such customers and FFI.

    (b) Except as disclosed on Schedule 3.18:

        (i)  FULL DISCLOSURE OF  ALL PLANS.  With  respect to all employees  and
    former  employees  of  FFI  and the  Subsidiaries  (and  all  dependents and
    beneficiaries of such employees and former employees):

           (A) Neither FFI nor any of the Subsidiaries maintain or contribute to
       any nonqualified deferred compensation or retirement plans, contracts  or
       arrangements;

           (B) Neither FFI nor any of the Subsidiaries maintain or contribute to
       any  qualified defined contribution plans (as defined in Section 3(34) of
       ERISA or Section 414(i) of the Code);

           (C) Neither FFI nor any of the Subsidiaries maintain or contribute to
       any qualified defined benefit plans (as defined in Section 3(35) of ERISA
       or Section 414(j) of the Code) ("Defined Benefit Plans"); and

           (D) Neither FFI nor any of the Subsidiaries maintain or contribute to
       any employee welfare benefit plans (as defined in Section 3(1) of ERISA).

                                      A-14
<PAGE>
        (ii)    FUNDING.    With  respect   to  the  Plans,  (A)  all   required
    contributions  which are due  have either been made  or properly accrued and
    (B) neither FFI nor any of  the Subsidiaries is liable for any  "accumulated
    funding  deficiency" as that term  is defined in Section  412 of the Code or
    any penalty or excise tax in connection therewith.

        (iii)   PLAN  DOCUMENTS.    With  respect  to  all  Plans  sponsored  or
    administered  by FFI or any Subsidiary and with respect to any other Plan if
    available to FFI  or any  Subsidiary, FFI has  furnished FBS  with true  and
    complete  copies  of  (A)  the most  recent  determination  letter,  if any,
    received by FFI or any of the Subsidiaries from the Internal Revenue Service
    regarding each  qualified Plan,  (B) the  Form 5500  and all  Schedules  and
    accompanying financial statements, if any, for each Plan for which such form
    is required to be filed for the three most recent fiscal Plan years, (C) the
    most  recently prepared actuarial  valuation report, if  any, for each Plan,
    and (D) copies of  the current Plan  documents, trust agreements,  insurance
    contracts  and all related  contracts and documents  (including any material
    employee communications) with respect to each Plan.

        (iv)  DEFINED BENEFIT  PLANS.  Neither FFI  nor any of the  Subsidiaries
    nor  any  affiliate of  FFI  or any  of  the Subsidiaries  maintains  or has
    maintained any Defined Benefit Plans for which FFI, any of the  Subsidiaries
    or FBS have or will have any liability or, which if terminated, could result
    in  any liability to FFI,  the Subsidiaries or FBS  under Title IV of ERISA.
    There are no unfunded vested  liabilities (determined using the  assumptions
    used  by the Plan for funding and without regard to future salary increases)
    with respect to Defined  Benefit Plans sponsored by  FFI or any  Subsidiary.
    There  have  been no  reportable events  under Section  4043 of  ERISA (with
    respect to  which the  30-day  notice requirement  has  not been  waived  by
    regulation)  with respect to  any Defined Benefit Plan  maintained by FFI or
    any of the Subsidiaries.  No Defined Benefit Plan  has been terminated  that
    will result in a material liability by FFI or any of the Subsidiaries to the
    Pension Benefit Guaranty Corporation.

        (v)   MULTIEMPLOYER PLANS.  Neither FFI  nor any of the Subsidiaries has
    any actual or potential liabilities under Sections 4201 or 4205 of ERISA for
    any complete or partial withdrawal from any multiemployer plan.

        (vi)  FIDUCIARY BREACH; CLAIMS.  Neither FFI nor any of the Subsidiaries
    nor any of  its directors,  officers, employees or  other "fiduciaries"  (as
    such  term is defined in Section 3(21) of ERISA) has committed any breach of
    fiduciary duty imposed by ERISA or any other applicable law with respect  to
    the  Plans which would subject  FFI or any of  the Subsidiaries, directly or
    indirectly, to any liability under ERISA or any applicable law. There are no
    actions, suits or claims pending against  FFI or any Subsidiary relating  to
    benefits other than routine, uncontested claims for benefits.

        (vii)   PROHIBITED TRANSACTION.  Neither FFI nor any of the Subsidiaries
    nor any officer,  director, employee,  agent or  fiduciary of  any Plan  has
    incurred  any liability for any civil penalty imposed by Section 4975 of the
    Code or Section 502(i) of ERISA.

        (viii)  MATERIAL COMPLIANCE WITH LAW.  All Plans have been  consistently
    administered in accordance with their terms in all material respects. To the
    extent  required either  as a matter  of law  or to obtain  the intended tax
    treatment and tax benefits, all Plans  comply in all material respects  with
    the  requirements  of ERISA  and the  Code. All  Tax information  returns or
    reports and all other required  filings, disclosures and contributions  have
    been  made with respect  to all Plans.  No condition exists  that limits the
    right of FFI or any of the Subsidiaries to amend or terminate any such  Plan
    (except as provided in such Plans or limited under ERISA or the Code).

        (ix)   VEBA FUNDING.   No Plan is  funded in whole or  in part through a
    voluntary employees' beneficiary association  exempt from tax under  Section
    501(c)(9)  of the Code. The  limitations under Sections 419  and 419A of the
    Code have been computed, all unrelated business income tax returns have been
    filed and appropriate adjustments have been made on all other Tax returns.

                                      A-15
<PAGE>
        (x)   RETIREMENT  AND  COBRA BENEFITS.    Neither  FFI nor  any  of  the
    Subsidiaries  have  actual  or  potential liability  under  current  law for
    benefits after  separation from  employment other  than (i)  benefits  under
    Plans  described in clauses (A), (B) or  (C) of Section 3.18(b)(i), and (ii)
    health care continuation benefits described in Section 4980B of the Code  or
    Part  G of Subtitle B of Title I of ERISA or any comparable provisions under
    the laws of any state.

        (xi)  COLLECTIVE BARGAINING.  No Plan is maintained in whole or in  part
    pursuant to collective bargaining.

        (xii)  PARACHUTE PAYMENTS.  No Plan requires or would result, separately
    or  in  the aggregate,  in the  payment of  any "excess  parachute payments"
    within the meaning of Section 280G of the Code, and the consummation of  the
    transactions  contemplated by this Agreement will not be a factor in causing
    payments to be  made by FBS,  FFI or any  of the Subsidiaries  that are  not
    deductible (in whole or in part) under Section 280G of the Code.

    3.19.   INSURANCE.  Schedule 3.19 hereto lists and summarizes each insurance
policy maintained  by  FFI  or any  of  the  Subsidiaries with  respect  to  its
properties and assets. All such insurance policies are in full force and effect,
and  neither FFI nor any  of the Subsidiaries is in  default with respect to its
obligations under any of such insurance policies.

    3.20.  COMPLIANCE WITH LAWS; PERMITS.  Each of FFI and the Subsidiaries  has
complied  in all respects  with all applicable laws  and regulations of foreign,
federal, state and local governments and  all agencies thereof which affect  the
business or any owned or leased properties of FFI or any of the Subsidiaries and
to  which FFI  or any  of the  Subsidiaries may  be subject  (including, without
limitation, the Occupational Safety and Health Act of 1970, the Federal  Deposit
Insurance  Act, the  Real Estate  Settlement Procedures  Act, the  Home Mortgage
Disclosure Act of 1975, the Fair  Housing Act, the Equal Credit Opportunity  Act
and  the Federal Reserve  Act, each as  amended, and any  other state or federal
acts (including  rules  and  regulations  thereunder)  regulating  or  otherwise
affecting  employee health and safety or  the environment), except where failure
to so  comply would  not, individually  or  in the  aggregate, have  a  material
adverse  effect on the business, operations,  results of operations or financial
condition of FFI and  the Subsidiaries, taken  as a whole,  or FFI's ability  to
consummate  the transactions contemplated hereby; and  no claims have been filed
by any  such governments  or agencies  against FFI  or any  of the  Subsidiaries
alleging  such a  violation of any  such law  or regulation which  have not been
resolved to the satisfaction  of such governments or  agencies. Each of FFI  and
the  Subsidiaries holds  all of  the permits,  licenses, certificates  and other
authorizations of  foreign,  federal,  state  and  local  governmental  agencies
required  for the conduct of  its business, except where  failure to obtain such
authorizations would  not, individually  or in  the aggregate,  have a  material
adverse  effect on the business, operations,  results of operations or financial
condition of FFI and the Subsidiaries, taken as whole, or the ability of FFI  to
consummate the transactions contemplated hereby. Except as disclosed in Schedule
3.20, neither FFI nor any of the Subsidiaries is subject to any cease and desist
order,  written agreement or memorandum of understanding  with, or is a party to
any commitment letter or similar undertaking to,  or is subject to any order  or
directive  by,  or is  a recipient  of  any extraordinary  supervisory agreement
letter from, or has adopted any board resolutions at the request of, federal  or
state  governmental authorities  charged with  the supervision  or regulation of
banks or bank  holding companies or  engaged in the  insurance of bank  deposits
(collectively,  the  "Bank Regulators"),  nor  have any  of  FFI or  any  of the
Subsidiaries been advised by any Bank Regulator that it is contemplating issuing
or requesting (or is considering  the appropriateness of issuing or  requesting)
any  such  order,  directive, written  agreement,  memorandum  of understanding,
extraordinary  supervisory  letter,  commitment  letter,  board  resolutions  or
similar undertaking.

    3.21.   ADMINISTRATION OF FIDUCIARY ACCOUNTS.   Each Subsidiary has properly
administered, in all respects material and which could reasonably be expected to
be material  to the  business, operations,  results of  operations or  financial
condition  of FFI and the Subsidiaries, taken as a whole, all accounts for which
it acts as  a fiduciary,  including but  not limited  to accounts  for which  it
serves  as  a  trustee,  agent,  custodian,  personal  representative, guardian,
conservator or investment advisor, in accordance

                                      A-16
<PAGE>
with the terms of the governing  documents and applicable state and federal  law
and  regulation and common  law. Neither FFI, any  Subsidiary, nor any director,
officer or employee of FFI or any  Subsidiary has committed any breach of  trust
with  respect  to any  such  fiduciary account  which  is material  to  or could
reasonably be expected to  be material to the  business, operations, results  of
operations or financial condition of FFI and the Subsidiaries, taken as a whole,
and  the accountings for each such fiduciary account are true and correct in all
material respects and accurately reflect the assets of such fiduciary account in
all material respects.

    3.22.   PROSPECTUS/PROXY  STATEMENT.    At  the  time  the  Prospectus/Proxy
Statement  is mailed  to the  shareholders of FFI  in order  to obtain approvals
referred to in Section 5.8(a) and at all times subsequent to such mailing up  to
and  including  the times  of  such approvals,  such  Prospectus/Proxy Statement
(including any supplements thereto), with  respect to all information set  forth
therein  relating to FFI (including the  Subsidiaries) and its shareholders, FFI
Common Stock, this Agreement, the Merger and all other transactions contemplated
hereby, will (a) comply in all  material respects with applicable provisions  of
the  1933 Act  and the  1934 Act, and  (b) not  contain any  untrue statement of
material fact or omit to state a material fact required to be stated therein  or
necessary   to  make  the   statements  contained  therein,   in  light  of  the
circumstances under which they are made, not misleading.

    3.23.  REGULATORY APPROVALS.  As of the date hereof, FFI is not aware of any
reason that  the regulatory  approvals specified  in Section  5.1 would  not  be
obtained.

    3.24.  INTEREST RATE RISK MANAGEMENT INSTRUMENTS.

    (a)  Schedule  3.24 sets  forth a  true,  correct and  complete list  of all
interest rate swaps, caps, floors and option agreements and other interest  rate
risk  management arrangements to which FFI or any of the Subsidiaries is a party
or by which any of their properties or assets may be bound. FFI has delivered or
made available to  FBS true, correct  and complete copies  of all such  interest
rate risk management agreements and arrangements.

    (b)  All interest rate  swaps, caps, floors and  option agreements and other
interest  rate  risk  management  arrangements  to  which  FFI  or  any  of  the
Subsidiaries  is a party  or by which any  of their properties  or assets may be
bound were  entered  into in  the  ordinary course  of  business and,  to  FFI's
knowledge,  in accordance  with prudent  banking practice  and applicable rules,
regulations and policies of the Bank Regulators and with counterparties believed
to be  financially responsible  at the  time and  are legal,  valid and  binding
obligations enforceable in accordance with their terms (except as may be limited
by  bankruptcy, insolvency, moratorium, reorganization or similar laws affecting
the rights of creditors generally  and the availability of equitable  remedies),
and  are in  full force and  effect. FFI and  each of the  Subsidiaries has duly
performed in all  material respects  all of  its obligations  thereunder to  the
extent  that such obligations  to perform have accrued;  and to FFI's knowledge,
there are no breaches,  violations or defaults or  allegations or assertions  of
such by any party thereunder.

    3.25   RIGHTS  AGREEMENT.   The execution  of this  Agreement and  the Stock
Option Agreement, the acquisition of FFI Common Stock pursuant to the  Agreement
and  the Stock Option  Agreement and the consummation  of the other transactions
contemplated hereby and thereby do not and will not result in FBS or any of  its
existing  or future affiliates or associates  becoming an "Acquiring Person" (as
such term is defined  in the Rights  Agreement, dated as  of December 19,  1994,
between  State Street Bank & Trust Company and FFI (the "FFI Rights Agreement"))
under the FFI Rights Agreement, result in any Triggering Event (as such term  is
defined  in the FFI Rights  Agreement) or enable or  require the Rights (as such
term  is  defined  in   the  FFI  Rights   Agreement)  to  become   exercisable,
distributable or triggered.

    3.26  ANTITAKEOVER PROVISIONS INAPPLICABLE.  The provisions of Article 24 of
the Nebraska Revised Statutes do not and will not apply to this Agreement or the
Stock  Option  Agreement or  the transactions  contemplated thereby  because the
required approval of FFI's  Board of Directors with  respect to such  agreements
has  been obtained  prior to the  execution of  this Agreement and  prior to the

                                      A-17
<PAGE>
date of the Stock Option Agreement. FFI has taken all actions required to exempt
this Agreement and the Stock Option Agreement and the transactions  contemplated
hereby  and thereby from the provisions of Article  X of the FFI Charter and any
state anti-takeover laws.

                                   ARTICLE 4

                     CONDUCT OF BUSINESS PENDING THE MERGER

    4.1.  CONDUCT OF BUSINESS  OF FFI.  From the  date of this Agreement to  the
Effective  Date, unless  FBS shall otherwise  consent in  writing, which consent
will not be  unreasonably withheld,  or as otherwise  expressly contemplated  or
permitted by other provisions of this Agreement, including this Section 4.1:

        (a)  Beginning  with the  third calendar  quarter of  1995 and  for each
    succeeding calendar quarter  thereafter prior  to that  calendar quarter  in
    which the Effective Date shall occur, FFI

           (i)  will not declare or pay  any dividends or make any distributions
       on shares of FFI Common Stock, except cash dividends which shall be equal
       to either: (A) $.30 per  share per quarter or  (B) that amount per  share
       per  quarter calculated  by multiplying  the amount  paid by  FBS on each
       share of FBS Common Stock for such quarter times the Exchange Ratio; and

           (ii) except as hereinbelow provided,  will not declare any  dividends
       or  distributions in  any amount  on FFI Common  Stock in  the quarter in
       which the Effective Date shall occur and in which the shareholders of FFI
       Common Stock are entitled to receive quarterly dividends on the shares of
       FBS Common Stock  into which  the shares of  FFI Common  Stock have  been
       converted. It is the intent of this subparagraph (ii) to provide that the
       holders  of FFI Common Stock will receive, with respect to the quarter in
       which the Effective Date occurs, either cash dividends on their shares of
       FFI Common Stock  with respect  to such  quarter or  cash dividends  with
       respect  to such  quarter as  the holders of  shares of  FBS Common Stock
       received in exchange  for the shares  of FFI Common  Stock, but will  not
       receive  and will not become entitled to receive with respect to the same
       calendar quarter both a cash dividend  as shareholders of FFI and a  cash
       dividend  as the holders  of the shares  of FBS Common  Stock received in
       exchange for the shares of FFI Common  Stock. In the event that FFI  does
       not  declare  cash dividends  on  its FFI  Common  Stock in  a particular
       calendar  quarter  because  of  FFI's  reasonable  expectation  that  the
       Effective  Date would occur in said  calendar quarter wherein the holders
       of FFI Common Stock would have become entitled to receive cash  dividends
       with  respect to such calendar quarter on the shares of FFI Common Stock,
       and the Effective Date does not in fact occur effective in such  calendar
       quarter,  then, as a result  thereof, FFI shall be  entitled to declare a
       cash dividend (within the limitations of this Section 4.1) on said shares
       of FFI Common  Stock with  respect to such  calendar quarter  as soon  as
       reasonably practicable.

        (b)  FFI will not issue, sell,  grant any warrant, option, phantom stock
    option, stock appreciation right or commitment  of any kind for, or  related
    to,  or acquire  for value,  any shares  of its  capital stock  or otherwise
    effect any change in  connection with its  equity capitalization, except  as
    set forth on Schedule 3.3 and except pursuant to the Stock Option Agreement.

        (c)  Except as otherwise set forth in or contemplated by this Agreement,
    FFI will  carry  on its  businesses  in  substantially the  same  manner  as
    heretofore, keep in full force and effect insurance comparable in amount and
    scope  of coverage to that now maintained by  it and use its best efforts to
    maintain and preserve its business organization intact.

        (d) Neither FFI nor any Subsidiary will  (i) enter into any new line  of
    business  or  incur or  agree to  incur any  obligation or  liability except
    liabilities and obligations (including corporate debt issuances) incurred in
    the ordinary course of business, except as may be directed by any regulatory
    agency; (ii) except as may be directed by any regulatory agency, change  its
    or the

                                      A-18
<PAGE>
    Subsidiaries'  lending, investment, liability  management and other material
    banking policies  in any  material  respect; (iii)  except in  the  ordinary
    course  of business and consistent with prior practice, grant any general or
    uniform increase in the  rates of pay of  employees; (iv) establish any  new
    employee  benefit plan or  bonus plan or arrangement,  or amend any existing
    employee benefit or bonus plan or  arrangement (except as required by  law);
    (v)  incur or commit to any single  or group of related capital expenditures
    or commitment therefor with an aggregate market value in excess of  $250,000
    other  than  in the  ordinary course  of  business (which  will in  no event
    include the  establishment  of new  branches  and other  facilities  or  any
    capital expenditures for such purpose); or (vi) merge into, consolidate with
    or  permit any other corporation to be merged or consolidated with it or any
    of its Subsidiaries or  acquire outside of the  ordinary course of  business
    part of or all the assets or stock of any other corporation or person.

        (e)  FFI will not change its  or its Subsidiaries' methods of accounting
    in effect at December 31, 1994,  except as required by changes in  generally
    accepted  accounting principles  as concurred  in by  Ernst &  Young LLP, or
    change any of  its methods of  reporting income and  deductions for  Federal
    income  tax purposes from those employed in the preparation of FFI's Federal
    income tax returns for the taxable years ending December 31, 1993 and  1994,
    except as required by changes in law.

        (f)  FFI will promptly  advise FBS in writing  of all material corporate
    actions taken by the directors and shareholders of FFI and furnish FBS  with
    copies  of all monthly and other interim financial statements of FFI as they
    become available.

        (g) FFI, its Subsidiaries and  their respective officers, directors  and
    employees  will not contract for or acquire, at the expense of FFI or any of
    its Subsidiaries, a policy or policies providing for insurance coverage  for
    directors,  officers and/or employees of FFI and/or its Subsidiaries for any
    period subsequent to the Effective Date for events occurring before or after
    the Effective Date; provided, however, that FFI may renew, extend or replace
    existing policies in the ordinary course consistent with past practices  for
    periods of not greater than one year.

        (h)  Neither  FFI  nor  any  of  the  Subsidiaries  shall,  directly  or
    indirectly, amend or propose to amend its Charter or Bylaws.

        (i) Neither  FFI  nor  any  of  the  Subsidiaries  shall  sell,  assign,
    transfer,  mortgage or  pledge any  of its  assets with  an aggregate market
    value in excess of $200,000, except (x) in the ordinary course of  business,
    including REO, (y) liens and encumbrances for current property taxes not yet
    due  and  payable and  (z) liens  and encumbrances  which do  not materially
    affect the value of, or interfere with the past or future use or ability  to
    convey, the property subject thereto or affected thereby.

        (j)    Neither FFI  nor any  of  the Subsidiaries  shall enter  into any
    settlement or similar  agreement involving  payments of  more than  $250,000
    with respect to any action, suit, proceeding, order or investigation or take
    any  other significant  action with  respect to  the conduct  of any action,
    suit, proceeding,  order  or  investigation  to which  FFI  or  any  of  the
    Subsidiaries is a party or becomes a party after the date of this Agreement,
    in each case without prior consultation with FBS.

        (k) Neither FFI nor any of the Subsidiaries shall agree to do any of the
    foregoing.

For  purposes of this Agreement, the  words "prior consultation" with respect to
any action  means  advance notice  of  such  proposed action  and  a  reasonable
opportunity to discuss such action in good faith prior to taking such action.

                                      A-19
<PAGE>
    4.2   CONDUCT OF  BUSINESS OF FBS.   From the date of  this Agreement to the
Effective Date, unless  FFI shall  otherwise consent in  writing, which  consent
will  not be  unreasonably withheld  or as  otherwise expressly  contemplated or
permitted by other provisions of this Agreement, including this Section 4.2:

        (a) FBS will not adopt or implement any amendment to its Charter or  any
    plan  or  reorganization which  would  affect in  any  manner the  terms and
    provisions of the shares of FBS Common Stock or the rights of the holders of
    such shares or  reclassify the FBS  Common Stock; provided  that nothing  in
    this  Section 4.2(a)  shall be construed  to prohibit FBS  from amending its
    Charter to increase the number of authorized shares of its capital stock.

        (b) FBS will not, and will cause its subsidiaries not to,  intentionally
    make  or  agree to  make any  acquisition,  or take  any other  action, that
    materially adversely  affects its  ability  to consummate  the  transactions
    contemplated by this Agreement.

                                   ARTICLE 5
                      ADDITIONAL COVENANTS AND AGREEMENTS

    5.1.  FILINGS AND APPROVALS.  Each party will use all reasonable efforts and
will  cooperate with the  other party in  the preparation and  filing, within 45
days of  the date  of this  Agreement, of  all applications  or other  documents
required to obtain regulatory approvals and consents from the Board of Governors
of  the Federal Reserve  System (the "FRB"), the  Nebraska Department of Banking
and Finance, the Superintendent of Banking of Iowa, the Banking Commissioner  of
Wyoming   and  any  other  applicable   regulatory  authorities  (including  any
applications with the Office of the  Comptroller of the Currency and the  Office
of  Thrift Supervision deemed by FBS to  be necessary to allow it to consolidate
the operations of the Banking Subsidiaries with the operations of FBS's bank and
thrift subsidiaries)  and  provide  copies of  such  applications,  filings  and
related  correspondence to  the other party.  Prior to  filing each application,
registration  statement  or  other  document  with  the  applicable   regulatory
authority, each party will provide the other party with an opportunity to review
and   comment  on  the  nonconfidential   portions  of  each  such  application,
registration statement or  other document.  Each party will  use all  reasonable
efforts  and will cooperate with  the other parties in  taking any other actions
necessary to obtain such regulatory  or other approvals and consents,  including
participating  in any required hearings or proceedings. Subject to the terms and
conditions herein provided, each party will use all reasonable efforts to  take,
or  cause to be taken,  all actions and to  do, or cause to  be done, all things
necessary, proper or advisable to consummate  and make effective as promptly  as
practicable the transactions contemplated by this Agreement.

    5.2.   CERTAIN  LOANS AND  RELATED MATTERS.   FFI will  continue to prepare,
consistent with past practices, and will furnish to FBS, a complete and accurate
list as of the  end of each  calendar month after  June 1995 of  (a) all of  the
Banking  Subsidiaries' periodic internal credit  quality reports prepared during
such calendar  month, (b)  all loans  of any  Banking Subsidiary  classified  as
non-accrual,  as  restructured,  as 90  days  past  due, as  still  accruing and
doubtful of collection or any comparable classification, (c) all REO,  including
in-substance   foreclosures  and  real  estate  in  judgment,  (d)  any  current
repurchase obligations of any Banking Subsidiary with respect to any loans, loan
participations or state or  municipal obligations or revenue  bonds and (e)  any
standby letters of credit issued by any Banking Subsidiary.

    5.3.   EXPENSES.   All costs and  expenses incurred in  connection with this
Agreement and the transactions  contemplated hereby shall be  paid by the  party
incurring such costs and expenses.

    5.4.   NO NEGOTIATIONS, ETC.  FFI  will not, and will cause the Subsidiaries
and FFI's  and  the  Subsidiaries' respective  officers,  directors,  employees,
agents  and  affiliates, not  to,  directly or  indirectly,  solicit, authorize,
initiate or  encourage  submission of,  any  proposal, offer,  tender  offer  or
exchange offer from any person or entity (including any of its or their officers
or  employees)  relating  to  any  liquidation,  dissolution,  recapitalization,
merger,   consolidation    or    acquisition    or   purchase    of    all    or

                                      A-20
<PAGE>
a  material portion of the assets or deposits of, or any equity interest in, FFI
or any of the Subsidiaries or other similar transaction or business  combination
involving  FFI or any of the Subsidiaries, or, unless FFI shall have determined,
after receipt of a written  opinion of counsel to FFI  (a copy of which  opinion
shall  be delivered to FBS), that the Board  of Directors of FFI has a fiduciary
duty to do  so, (a) participate  in any  negotiations in connection  with or  in
furtherance  of any of the foregoing or (b) permit any person other than FBS and
its representatives to have any access to  the facilities of, or furnish to  any
person  other than FBS  and its representatives  any non-public information with
respect to, FFI or any of the Subsidiaries in connection with or in  furtherance
of  any of the foregoing. FFI shall promptly  notify FBS if any such proposal or
offer, or any inquiry from or contact  with any person with respect thereto,  is
made,  and  shall  promptly provide  FBS  with such  information  regarding such
proposal, offer, inquiry or contact as FBS may request.

    5.5.  NOTIFICATION OF CERTAIN MATTERS.  Each party shall give prompt  notice
to the other party of (a) the occurrence or failure to occur of any event or the
discovery  of any information,  which occurrence, failure  or discovery would be
likely to cause  any representation or  warranty on its  part contained in  this
Agreement  to be materially untrue or inaccurate when made at the Effective Date
or at any time prior to the Effective Date and (b) any material failure of  such
party  to comply  with or  satisfy any  covenant, condition  or agreement  to be
complied with or satisfied by it hereunder.

    5.6.  ACCESS TO INFORMATION; CONFIDENTIALITY.

    (a) FFI shall permit and shall cause each of the Subsidiaries to permit  FBS
full  access on reasonable notice and at  reasonable hours to its properties and
shall disclose and make available (together with  the right to copy) to FBS  and
to   the  internal   auditors,  loan  review   officers,  employees,  attorneys,
accountants and  other representatives  of  FBS all  books, papers  and  records
relating   to  the  assets,  stock,   properties,  operations,  obligations  and
liabilities of  FFI and  the Subsidiaries,  including, without  limitation,  all
books  of  account  (including,  without limitation,  the  general  ledger), tax
records, minute books of  directors' and shareholders' meetings,  organizational
documents,  bylaws,  contracts  and  agreements,  filings  with  any  regulatory
authority,  accountants'  work  papers,  litigation  files  (including,  without
limitation,  legal research memoranda),  documents relating to  assets and title
thereto (including,  without limitation,  abstracts, title  insurance  policies,
surveys, environmental reports, opinions of title and other information relating
to  the  real  and  personal property),  plans  affecting  employees, securities
transfer records  and  shareholder lists,  and  any books,  papers  and  records
relating to other assets, business activities or prospects in which FBS may have
a  reasonable interest, including, without  limitation, its interest in planning
for integration  and transition  with respect  to the  business of  FFI and  the
Subsidiaries; provided, however, that the foregoing rights granted to FBS shall,
whether  or not and regardless of the extent to which the same are exercised, in
no way  affect  the nature  or  scope  of the  representations,  warranties  and
covenants  of FFI  set forth herein.  In addition,  FFI shall cause  each of the
Subsidiaries to instruct its officers, employees, counsel and accountants to  be
available  for, and  respond to  any questions  of, such  FBS representatives at
reasonable hours and with reasonable notice  by FBS to such individuals, and  to
cooperate  fully with FBS in planning for the integration of the business of FFI
and the Subsidiaries with the business of FBS and its subsidiaries.

    (b) FBS shall permit reasonable access to its properties and shall  disclose
and  make  available  (together  with the  right  to  copy) to  FFI  and  to its
representatives FBS's financial  books and records,  minute books of  directors'
and  shareholders' meetings, organizational documents,  bylaws, and filings with
any regulatory authority; provided, however,  that the foregoing rights  granted
to  FFI shall, whether or not and regardless of the extent to which the same are
exercised, in  no  way  affect  the nature  or  scope  of  the  representations,
warranties  and  covenants  of FBS  set  forth  herein. In  addition,  FBS shall
instruct its officers, employees, counsel  and accountants to be available  for,
and  respond to  reasonable questions of,  representatives of  FFI at reasonable
hours and with reasonable notice by FFI to such individuals.

                                      A-21
<PAGE>
    (c) All information furnished by FFI or FBS pursuant hereto shall be treated
as the sole property of the party furnishing the information until the Effective
Date, and, if  the Effective  Date shall not  occur, the  receiving party  shall
return  to the party which furnished such information, or destroy, all documents
or  other  materials  (including  copies  thereof)  containing,  reflecting   or
referring  to  such information.  In addition,  the  receiving party  shall keep
confidential all such information and shall not directly or indirectly use  such
information  for any competitive or other  commercial purpose. In the event that
this Agreement shall terminate, neither party shall disclose, except as required
by law  or  pursuant  to  the  request of  an  administrative  agency  or  other
regulatory  body, the basis or reason  for such termination, without the consent
of the other party. The obligation  to keep such information confidential  shall
not  apply to (i) any information which (A) was already in the receiving party's
possession prior to the disclosure thereof  to the receiving party by the  party
furnishing  the information,  (B) was  then generally  known to  the public, (C)
became known  to the  public through  no fault  of the  receiving party  or  its
representatives or (D) was disclosed to the receiving party by a third party not
bound  by an obligation of confidentiality  or (ii) disclosures required by law,
governmental or regulatory authority.

    5.7.  FILING OF TAX RETURNS AND ADJUSTMENTS.

    (a) FFI, on behalf of FFI and each of the Subsidiaries, shall file (or cause
to be filed) at their own expense, on or prior to the due date, all Tax returns,
including all Plan returns and reports, for all Tax periods ending on or  before
the  Effective Date where the due date  for such returns or reports (taking into
account valid extensions  of the respective  due dates) falls  on or before  the
Effective  Date; provided, however, that neither FFI nor any of the Subsidiaries
shall file any  such Tax  returns, or  other returns,  elections or  information
statements  with respect to any liabilities for Taxes (other than federal, state
or local sales, use,  withholding or employment tax  returns or statements),  or
consent  to any  adjustment or otherwise  compromise or settle  any matters with
respect to Taxes, without prior  consultation with FBS; provided, further,  that
neither  FFI nor  any of the  Subsidiaries shall  make any election  or take any
other discretionary position  with respect  to Taxes, in  a manner  inconsistent
with  past practices, without the prior  written approval of FBS, which approval
shall not be unreasonably withheld. In the event the granting or withholding  of
such approval by FBS results in additional Taxes owing for any Tax period ending
on  or before the Effective Date, liability  for such additional Taxes shall not
cause any  representation of  FFI relating  to  Taxes to  be untrue.  FFI  shall
provide  FBS with a copy of  appropriate workpapers, schedules, drafts and final
copies of each federal and state income  Tax return or election of FFI and  each
of  the Subsidiaries (including returns  of all Plans) at  least ten days before
filing such return or election and  shall reasonably cooperate with any  request
by FBS in connection therewith.

    (b)  FBS, in  its sole and  absolute discretion,  will file (or  cause to be
filed) all  Tax returns  of  FFI and  each of  the  Subsidiaries due  after  the
Effective  Date.  After  the  Effective  Date, FBS,  in  its  sole  and absolute
discretion and to the extent  permitted by law, shall  have the right to  amend,
modify  or otherwise change all Tax returns  of FFI and each of the Subsidiaries
for all Tax periods.

    5.8.  REGISTRATION STATEMENT.

    (a) For the purposes (i) of holding a meeting of the shareholders of FFI  to
approve  this Agreement and  the Merger and  (ii) of registering  the FBS Common
Stock to be issued to holders of FFI Common Stock in connection with the  Merger
with  the  SEC and  with applicable  state  securities authorities,  the parties
hereto shall  cooperate  in  the  preparation  of  an  appropriate  registration
statement (such registration statement, together with all and any amendments and
supplements  thereto, being herein referred to as the "Registration Statement"),
which shall  include a  prospectus/ proxy  statement satisfying  all  applicable
requirements of the 1933 Act, the 1934 Act, applicable state securities laws and
the  rules and regulations thereunder (such prospectus/proxy statement, together
with any and all amendments or supplements thereto, being herein referred to  as
the "Prospectus/ Proxy Statement").

                                      A-22
<PAGE>
    (b)  FBS shall  furnish such information  concerning FBS as  is necessary in
order to cause the Prospectus/Proxy Statement, insofar as it relates to FBS,  to
be prepared in accordance with Section 5.8(a). FBS agrees promptly to advise FFI
if  at any time prior to the  FFI shareholders' meeting any information provided
by FBS in the Prospectus/Proxy Statement becomes incorrect or incomplete in  any
material  respect,  and  to  provide  the  information  needed  to  correct such
inaccuracy or omission.

    (c) FFI  shall furnish  FBS with  such information  concerning FFI  and  the
Subsidiaries  as is necessary in order  to cause the Prospectus/Proxy Statement,
insofar as it relates to FFI and the Subsidiaries, to be prepared in  accordance
with  Section 5.8(a). FFI agrees promptly to advise  FBS if at any time prior to
the FFI shareholders' meeting any information provided by FFI in the Prospectus/
Proxy Statement becomes incorrect or incomplete in any material respect, and  to
provide FBS with the information needed to correct such inaccuracy or omission.

    (d)  FBS will use reasonable efforts to file the Registration Statement with
the SEC and applicable state securities agencies  within 45 days of the date  of
this  Agreement.  FBS shall  use reasonable  efforts  to cause  the Registration
Statement to become effective under the 1933 Act and applicable state securities
laws at the  earliest practicable  date. FFI authorizes  FBS to  utilize in  the
Registration  Statement  the  information concerning  FFI  and  the Subsidiaries
provided to FBS for the purpose of inclusion in the Prospectus/Proxy  Statement.
FFI  shall have the right  to review and comment on  the form of proxy statement
included in the Registration Statement. FBS  shall advise FFI promptly when  the
Registration Statement has become effective and of any supplements or amendments
thereto,  and FBS shall furnish FFI with  copies of all such documents. Prior to
the Effective  Date or  the  termination of  this  Agreement, each  party  shall
consult   with  the  other  with  respect   to  any  material  (other  than  the
Prospectus/Proxy Statement) that might constitute a "prospectus" relating to the
Merger within the meaning of the 1933 Act.

    (e) FBS shall  use reasonable  efforts to  cause to  be delivered  to FFI  a
letter  relating to  the Registration  Statement from  Ernst &  Young LLP, FBS's
independent auditors, dated a date within  two business days before the date  on
which the Registration Statement shall become effective and addressed to FFI, in
form  and substance  reasonably satisfactory to  FFI and customary  in scope and
substance for letters delivered by independent public accountants in  connection
with registration statements similar to the Registration Statement.

    (f)  FFI shall  use reasonable  efforts to  cause to  be delivered  to FBS a
letter relating to the  Registration Statement from  Arthur Andersen LLP,  FFI's
independent  auditors, dated a date within two  business days before the date on
which the Registration Statement shall become effective and addressed to FBS, in
form and substance  reasonably satisfactory to  FBS and customary  in scope  and
substance  for letters delivered by independent public accountants in connection
with registration statements similar to the Registration Statement.

    (g) FBS shall  bear the costs  of all SEC  filing fees with  respect to  the
Registration  Statement and  the costs  of qualifying  the shares  of FBS Common
Stock under Blue Sky Laws to the  extent necessary. FFI shall bear all  printing
and  mailing  costs  in  connection  with the  preparation  and  mailing  of the
Prospectus/Proxy Statement  to FFI  shareholders. FBS  and FFI  shall each  bear
their  own legal  and accounting  expenses in  connection with  the Registration
Statement.

    5.9.  AFFILIATE  LETTERS.   FFI shall  use its  best efforts  to obtain  and
deliver  to  FBS  at  least  31  days  prior  to  the  Effective  Date  a signed
representation letter substantially in  the form of Exhibit  C hereto from  each
shareholder of FFI who may reasonably be deemed an "affiliate" of FFI within the
meaning  of such  term as used  in Rule  145 under the  1933 Act.  FBS may place
appropriate legends on the stock certificates of affiliates of FFI.

    5.10.  ESTABLISHMENT OF ACCRUALS.  If requested by FBS, on the business  day
immediately  prior to the  Effective Date, FFI  shall, consistent with generally
accepted accounting principles, establish such additional accruals and  reserves
as  may  be  necessary  to  conform FFI's  accounting  and  credit  loss reserve
practices and methods to those of FBS  (as such practices and methods are to  be
applied to FFI

                                      A-23
<PAGE>
or  its Subsidiaries from and after the  Effective Date) and reflect FBS's plans
with respect  to the  conduct of  FFI's  business following  the Merger  and  to
provide  for the costs and  expenses relating to the  consummation by FFI of the
transactions contemplated by this Agreement;  provided, however, that FFI  shall
not  be  required  to take  such  action (A)  if  such action  is  prohibited by
applicable law or (B) unless  FBS informs FFI that it  has no reason to  believe
that  all  conditions  to  FBS's  obligations  to  consummate  the  transactions
contemplated by  this  Agreement set  forth  in Article  6  hereof will  not  be
satisfied  or waived. The establishment of such accruals and reserves shall not,
in and of itself, constitute a breach  of any representation or warranty of  FFI
contained  in  this Agreement  or constitute  a material  adverse change  in the
business, operations, results of  operations or financial  condition of FFI  and
the Subsidiaries, taken as a whole.

    5.11.  EMPLOYEE MATTERS.

    (a)  GENERAL.  Subject to the following agreements, after the Effective Date
FBS  shall have the right  to continue, amend or terminate  any of the Plans (as
defined in Section 3.18) in accordance with the terms thereof and subject to any
limitation arising  under applicable  law.  Until FBS  shall take  such  action,
however,  such Plans  shall continue  in force  for the  benefit of  present and
former employees  of FFI  or the  Subsidiaries who  have any  present or  future
entitlement to benefits under any of the Plans ("FFI Employees").

    (b)   FFI  401(K) PLAN.   After the  Effective Date, FBS  will terminate the
accrual of benefits under the FFI 401(k) plans listed on Schedule  3.18(b)(i)(B)
and  sponsored  by FFI  or  any Subsidiary  not more  than  two years  after the
Effective Date. Benefits  accruing between the  Effective Date and  the date  on
which  the  accrual of  benefits is  terminated shall  be fully  and immediately
vested as of that time. Distributions shall not be permitted from the FFI 401(k)
plans merely because of the discontinuance of accruals or the transfer of assets
and liabilities.

    (c)  FBS PLANS.

        (i)  FBS CAP (401(K))  PLAN.  After the  Effective Date, FBS shall  take
    such  actions as may be necessary to  cause eligible FFI Employees to become
    qualified to  participate  in  the FBS  Capital  Accumulation  Plan  ("CAP")
    concurrent  with the date  that FBS causes  accruals to cease  under the FFI
    401(k) plan.  All service  with FFI  and any  of the  Subsidiaries  (whether
    before  or after the Effective Date)  since an individual's most recent date
    of hire  shall be  recognized  under the  CAP  for eligibility  and  vesting
    purposes  but  shall  not  be  recognized  for  contribution  and allocation
    purposes.

        (ii)  WELFARE AND OTHER BENEFITS.  Following the Effective Date, at such
    time as FBS shall  determine, FBS shall  use its best  efforts to cause  FFI
    Employees  to  be  covered by  the  welfare and  other  generally applicable
    benefit plans and practices of FBS; and, pending such coverage, FBS will use
    its best efforts to provide  welfare and other generally applicable  benefit
    plans  that, taken as a whole, provide coverage substantially similar to the
    then current plans and practices of FBS or those of FFI immediately prior to
    the Effective Date; provided, that during any such interim period, FBS shall
    not be obligated to continue any  particular welfare or other benefit  plans
    or practices of FFI or any Subsidiary, as the case may be, applicable to FFI
    Employees.

    (d)   VESTED RIGHTS.  FBS will honor  the obligations of FFI with respect to
vested rights under  Plans and agreements  of FFI relating  to FFI Employees  in
accordance with the terms of such vested rights and subject to the provisions of
Section 5.11(a).

    (e)   LIMITATION ON ENFORCEMENT.   This Section 5.11  is an agreement solely
between FFI and the Subsidiaries and FBS. Nothing in this Section 5.11,  whether
express or implied, confers upon any employee of FFI, any of the Subsidiaries or
FBS  or any other person, any rights or remedies, including, but not limited to:
(i) any right to  employment or recall, (ii)  any right to continued  employment
for   any  specified  period,  or  (iii)  any  right  to  claim  any  particular
compensation,  benefit  or  aggregate  of  benefits,  of  any  kind  or   nature
whatsoever, as a result of this Section 5.11.

                                      A-24
<PAGE>
    5.12.  TAX TREATMENT.  Neither FFI nor any of the Subsidiaries nor FBS shall
take  any action  which would disqualify  the Merger as  a "reorganization" that
would be tax free to the shareholders  of FFI pursuant to Section 368(a) of  the
Code.

    5.13.  STOCK OPTIONS.

    (a)  STOCK OPTION PLANS.  On the Effective Date, and to the extent permitted
by  applicable plans and agreements, each  outstanding option to purchase shares
of FFI Common Stock (a "Stock Option") issued pursuant to the stock option plans
listed on Schedule  3.3 (collectively, the  "FFI Stock Option  Plans") shall  be
assumed  by  FBS and  shall  thereafter be  deemed  to constitute  an  option to
acquire, on the same terms and conditions as were applicable under such  option,
the same number of shares of FBS Common Stock as the holder of such option would
have  been entitled to receive pursuant to  the Merger had such holder exercised
such option in  full immediately prior  to the  Effective Date, at  a price  per
share  equal to (x)  the aggregate exercise  price for the  shares of FFI Common
Stock otherwise purchasable pursuant to such option divided by (y) the number of
full shares of  FBS Common  Stock deemed  purchasable pursuant  to such  option;
provided,  however, that in the  case of any option to  which Section 421 of the
Code applies  by reason  of its  qualification  under Section  422 of  the  Code
("incentive  stock options"), the option price, the number of shares purchasable
pursuant to such option and the terms and conditions of exercise of such options
shall be determined in order to comply with Section 424(a) of the Code.

    (b)   REGISTRATION OF  STOCK OPTION  PLANS.   FBS shall  take all  corporate
action  necessary to reserve for  issuance a sufficient number  of shares of FBS
Common Stock  for delivery  upon exercise  of  Stock Options  assumed by  it  in
accordance  with this Section  5.13. As soon as  practicable after the Effective
Date, FBS shall file a  registration statement on Form S-3  or Form S-8, as  the
case  may  be  (or  any  successor  or  other  appropriate  forms),  or  another
appropriate form with respect to the shares of FBS Common Stock subject to  such
options  and shall use  its best efforts  to maintain the  effectiveness of such
registration statement  or registration  statements  (and maintain  the  current
status  of the prospectus or prospectuses contained therein) for so long as such
options remain outstanding.

    5.14.  INDEMNIFICATION AND INSURANCE.

    (a) From and after the Effective Date, FBS shall indemnify, defend and  hold
harmless  each person  who is now,  or has  been at any  time prior  to the date
hereof or  who becomes  prior to  the Effective  Date, an  officer, director  or
employee  of FFI or any of  the Subsidiaries (the "Indemnified Parties") against
all losses,  claims,  damages,  costs,  expenses  (including  attorney's  fees),
liabilities  or  judgments  or  amounts  that  are  paid  in  settlement  (which
settlement shall require the prior written  consent of FBS, which consent  shall
not  be unreasonably withheld) of or in connection with any claim, action, suit,
proceeding or investigation (a "Claim") in which an Indemnified Party is, or  is
threatened  to be made,  a party or  a witness based  in whole or  in part on or
arising in  whole or  in part  out of  the fact  that such  person is  or was  a
director,  officer or employee of  FFI or any of  the Subsidiaries if such Claim
pertains to  any matter  or fact  arising, existing  or occurring  prior to  the
Effective Date (including, without limitation, the Merger and other transactions
contemplated  by this  Agreement or the  Stock Option  Agreement), regardless of
whether such Claim is asserted  or claimed prior to,  at or after the  Effective
Date  (the  "Indemnified  Liabilities")  to  the  full  extent  permitted  under
applicable Nebraska or federal law as of the date hereof or as amended prior  to
the  Effective Date and under FFI's Charter and  Bylaws as in effect on the date
hereof (and FBS shall pay  expenses in advance of  the final disposition of  any
such action or proceeding to each Indemnified Party to the full extent permitted
by  law  and under  such  Charter or  Bylaws,  upon receipt  of  any undertaking
required by  such Charter,  Bylaws  or applicable  law). Any  Indemnified  Party
wishing  to claim indemnification  under this Section  5.14(a), upon learning of
any Claim, shall notify FBS (but the failure so to notify FBS shall not  relieve
it  from any liability which  FBS may have under  this Section 5.14(a) except to
the extent such failure prejudices FBS) and shall deliver to FBS any undertaking
required by  such Charter,  Bylaws or  applicable law.  FBS shall  use its  best
efforts  to  assure, to  the  extent permitted  under  applicable law,  that all
limitations of  liability  existing  in  favor of  the  Indemnified  Parties  as
provided in the FFI Charter and Bylaws, as in effect as of the date hereof, with
respect to claims or liabilities

                                      A-25
<PAGE>
arising  from facts or events existing or  occurring prior to the Effective Date
(including,  without   limitation,  the   transactions  contemplated   by   this
Agreement),  shall survive the Merger. The  obligations of FBS described in this
Section 5.14(a) shall continue in full  force and effect, without any  amendment
thereto,  for  a period  of not  less than  six years  from the  Effective Date;
provided, however, that all  rights to indemnification in  respect of any  Claim
asserted  or made within such period  shall continue until the final disposition
of such Claim.

    (b) From and after the Effective Date, the directors, officers and employees
of FFI and the Subsidiaries who  become directors, officers or employees of  FBS
or  any of its subsidiaries, except for  the indemnification rights set forth in
Section  5.14(a)  or  as  otherwise  provided  by  applicable  law,  shall  have
indemnification  rights  with  prospective  application  only.  The  prospective
indemnification rights shall consist of such rights to which directors, officers
and employees of FBS are entitled under the provisions of the Charter or similar
governing documents of FBS and its subsidiaries, as in effect from time to  time
after  the Effective Date, as applicable, and provisions of applicable law as in
effect from time to time after the Effective Date.

    (c) The obligations of FBS provided  under Sections 5.14(a) and 5.14(b)  are
intended to benefit, and be enforceable against FBS directly by, the Indemnified
Parties, and shall be binding on all respective successors of FBS.

    (d)  For a period of five years after  the Effective Date, FBS shall use its
best efforts  to provide  that  portion of  directors' and  officers'  liability
insurance  that serves to reimburse officers and  directors of FFI or any of the
Subsidiaries (as opposed  to FBS  or FFI) with  respect to  claims against  such
officers  and directors arising  from facts or events  which occurred before the
Effective Date of at least the  same coverage and amounts, and containing  terms
and conditions no less advantageous, as that coverage currently provided by FFI;
provided,  however, that the  annual premiums for such  coverage will not exceed
200% of the annual premiums currently  paid by FFI for such coverage;  provided,
further, that officers and directors of FFI or any Subsidiary may be required to
make  application and provide customary  representations and warranties to FBS's
insurance carrier for  the purpose  of obtaining such  insurance; and  provided,
further,  that such  coverage will have  a single aggregate  for such three-year
period in  an  amount  not less  than  the  annual aggregate  of  such  coverage
currently provided by FFI.

    5.15.  FBS SEC REPORTS.  FBS shall continue to file all reports with the SEC
necessary  to permit the shareholders of FFI who are "affiliates" of FFI (within
the meaning of such term as used in Rule 145 under the 1933 Act) to sell the FBS
Common Stock received by  them in connection with  the Merger pursuant to  Rules
144 and 145(d) under the 1933 Act if they would otherwise be so permitted. After
the  Effective Date,  FBS will  file with  the SEC  reports and  other materials
required by the federal securities laws on a timely basis.

    5.16.  SEC REPORTS.  Each of FBS and FFI agree to provide to the other party
copies of all reports and other documents  filed with the SEC by it between  the
date  hereof and the Effective Date within five days after the date such reports
or other documents are filed with the SEC.

    5.17.  STOCK EXCHANGE LISTING.   FBS shall use its  best efforts to list  on
the  New York Stock Exchange, subject to official notice of issuance, the shares
of FBS Common  Stock to  be issued to  the holders  of FFI Common  Stock in  the
Merger.

    5.18.   SHAREHOLDER APPROVAL.  FFI shall  call a meeting of its shareholders
for the purpose of voting upon this Agreement and the Merger, and shall schedule
such meeting based on consultation with FBS. The Board of Directors of FFI shall
recommend approval of this  Agreement and the Merger,  and use its best  efforts
(including, without limitation, soliciting proxies for such approvals) to obtain
such  shareholder approval,  unless the  Board of  Directors of  FFI determines,
after receipt of a written opinion of counsel  to FFI (a copy of which shall  be
delivered  to FBS), that recommending such approval or using its best efforts to
obtain such shareholder approval would be a breach of its fiduciary duties.

                                      A-26
<PAGE>
    5.19.  CONVERSION OF CUSTOMER DATA FILES  AND RECORDS.  As of the  Effective
Date, FFI shall use reasonable efforts to cause its existing customer data files
and  records to be in such format as is necessary to allow the then existing FBS
loan and deposit application systems to process FFI's customer data. FBS  agrees
to  cooperate with FFI to exchange information and data regarding the respective
procedures,  records  and  systems  with  the  objective  of  assisting  FFI  in
developing  and  implementing  such  a conversion  of  data  files  and records.
Customer  data  files  and  records  shall  include  all  customer  information,
accounting  information, statement records and  data regularly maintained by FFI
on electronic  information  systems  or  electronic  media  (including,  without
limitation,  data  relating  to all  deposit  and  loan customers,  ACH  and ATM
transactions, cash management  and collection services,  wire transfers,  credit
card processing systems and other related or similar systems). In the event that
this  Agreement is terminated pursuant  to the terms of  Section 7.1 hereof, FBS
shall promptly reimburse FFI for its expenses directly relating to its effort to
comply with the provisions of this Section 5.19.

    5.20.  EMPLOYMENT AGREEMENT.  As of the Effective Date, FBS shall  expressly
assume  and  agree to  perform  the Employment  Agreement  dated August  4, 1995
between FFI and David A. Rismiller as in effect on the date of this Agreement or
as amended with the prior written consent of FBS.

    5.21.  PRE-ACQUISITION INVESTIGATION.   FBS will initiate a  pre-acquisition
review of the books, records and facilities of FFI and the Subsidiaries and will
complete  such investigation as  soon as reasonably possible,  but in any event,
not later than September 5, 1995. FFI  will use its best efforts to provide  FBS
as  soon as reasonably  practicable but in  any event not  later than August 14,
1995, the information requested on the due diligence request list provided prior
to the date of this Agreement by FBS to FFI in connection with such review.  FBS
shall  advise FFI at the conclusion of such pre-acquisition investigation of all
matters  then  known  to  FBS  which  involve  credit  risk,  litigation,   loss
contingencies  or financial  exposures, interest  rate risk,  operations or data
processing exposures or environmental exposures and, in the reasonable  judgment
of  the Board of Directors of FBS, are  of such significance as to be reasonably
likely to materially and adversely affect the financial condition or the results
of operations of FFI and the Subsidiaries, taken as a whole. FBS shall have  the
right   to  terminate  this  Agreement  set   forth  in  Section  7.1(g)  hereof
notwithstanding the  fact that  such  matters may  have  been disclosed  in  the
Schedules to this Agreement. The provisions of this Section 5.21 are in addition
to the rights of FBS pursuant to Section 5.6 hereof.

    5.22.  DISCLOSURE SCHEDULES.  FFI will deliver to FBS all Schedules referred
to  in  the  representations  and  warranties contained  in  Article  3  of this
Agreement containing exceptions to such  representations and warranties and  all
documents  required to  be delivered to  FBS by  FFI pursuant to  such Article 3
(other than those required in Sections 3.3  and 3.8, and the Charter and  Bylaws
of  FFI and  FFI's Annual Report  on Form 10-K  for the year  ended December 31,
1994, which have  been delivered prior  to the execution  of this Agreement)  as
soon  as  practicable but  in  any event  no later  than  August 14,  1995. Such
Schedules shall in each case describe the nature of each exception in reasonable
detail, and in  a form  reasonably acceptable to  FBS. Such  Schedules shall  be
deemed  to speak as of the date of delivery thereof to FBS and shall be true and
correct as of such date. Any document described or referred to in such Schedules
shall be delivered to  FBS by FFI  within two days after  a request therefor  by
FBS,  which request shall  be made no  later than two  days following receipt of
such Schedules.

                                      A-27
<PAGE>
                                   ARTICLE 6
                                   CONDITIONS

    6.1.  CONDITIONS TO OBLIGATIONS OF  EACH PARTY.  The respective  obligations
of each party to effect the transactions contemplated hereby shall be subject to
the fulfillment at or prior to the Effective Date of the following conditions:

        (a)   REGULATORY APPROVAL.  Regulatory  approval for the consummation of
    the transactions contemplated hereby shall have been obtained from the  FRB,
    the  Nebraska  Department  of  Banking and  Finance,  the  Superintendent of
    Banking  of  Iowa,  the  Banking  Commissioner  of  Wyoming  and  any  other
    governmental  authority  from  whom  approval  is  required,  the applicable
    waiting period,  if any,  under  the Bank  Holding  Company Act  shall  have
    expired  or been terminated,  and all other  statutory or regulatory waiting
    periods shall  have  lapsed.  None  of  such  approvals  shall  contain  any
    conditions  or restrictions, except  as set forth on  Schedule 6.1, that FBS
    reasonably believes  will  materially  restrict or  limit  the  business  or
    activities  of FBS or FFI and the Subsidiaries,  taken as a whole, or have a
    material adverse effect on, or would be reasonably likely to have a material
    adverse effect  on,  the  business, operations,  results  of  operations  or
    financial  condition of FBS and  its subsidiaries, taken as  a whole, on the
    one hand, or FFI and the Subsidiaries, taken as a whole, on the other hand.

        (b)  NO INJUNCTION.  No injunction or other order entered by a state  or
    federal court of competent jurisdiction shall have been issued and remain in
    effect  which would impair the consummation of the transactions contemplated
    hereby.

        (c)   NO  TERMINATION.   No  party  hereto shall  have  terminated  this
    Agreement as permitted herein.

        (d)  REGISTRATION STATEMENT.  The Registration Statement shall have been
    declared effective and shall not be subject to a stop order of the SEC, and,
    if  the offer and  sale of FBS Common  Stock in the  Merger pursuant to this
    Agreement is required  to be  registered under  the securities  laws of  any
    state,  the Registration Statement shall  not be subject to  a stop order of
    securities commission in such state.

        (e)  FEDERAL TAX OPINION.  An opinion of Wachtell, Lipton, Rosen &  Katz
    shall  have been  obtained with  respect to  the Merger,  based on customary
    reliance and subject  to customary  qualifications, to the  effect that  for
    federal income tax purposes:

           (i)  The  Merger will  qualify  as a  "reorganization"  under Section
       368(a) of the Code;

           (ii) No  gain or  loss  will be  recognized  by any  FFI  shareholder
       (except  in connection with the receipt of cash) upon the exchange of FFI
       Common Stock for FBS Common Stock in the Merger;

          (iii) The basis of the FBS Common Stock received by a FFI  shareholder
       who  exchanges FFI Common Stock for FBS  Common Stock will be the same as
       the basis  of  the FFI  Common  Stock surrendered  in  exchange  therefor
       (subject  to any adjustments required as the result of receipt of cash in
       lieu of a fractional share of FBS Common Stock);

          (iv) The holding  period of  the FBS Common  Stock received  by a  FFI
       shareholder  receiving FBS  Common Stock  will include  the period during
       which the  FFI Common  Stock surrendered  in exchange  therefor was  held
       (provided that the FFI Common Stock of such FFI shareholder was held as a
       capital asset at the Effective Date); and

           (v)  Cash received by a FFI shareholder in lieu of a fractional share
       interest of FBS Common Stock will be treated as having been received as a
       distribution in full payment in

                                      A-28
<PAGE>
       exchange for the fractional share interest of FBS Common Stock which  the
       FFI  shareholder would otherwise be entitled to receive, and will qualify
       as capital gain  or loss  (assuming the FFI  Common Stock  was a  capital
       asset in his hands at the Effective Date).

        Such  opinion shall be delivered  on and dated as  of the Effective Date
    and on  and as  of  such earlier  date as  may  be required  by the  SEC  in
    connection with the Registration Statement.

        (f)  The FBS Common Stock to be issued to holders of FFI Common Stock in
    the Merger shall  have been  approved for listing  on the  NYSE on  official
    notice of issuance.

    6.2.   ADDITIONAL CONDITIONS TO OBLIGATION OF FFI.  The obligation of FFI to
consummate the transactions contemplated hereby in accordance with the terms  of
this Agreement is also subject to the following conditions:

        (a)  REPRESENTATIONS AND COMPLIANCE.  The representations and warranties
    of  FBS set forth  in Article 2 shall  have been true and  correct as of the
    date hereof, and shall be  true and correct as of  the Effective Date as  if
    made  at and as of  the Effective Date, except where  the failure to be true
    and correct would  not have, or  would not reasonably  be expected to  have,
    individually or in the aggregate, a material adverse effect on the business,
    operations,  results of  operations or  financial condition  of FBS  and its
    subsidiaries, taken as a whole; and FBS shall in all material respects  have
    performed  each obligation and agreement and  complied with each covenant to
    be performed and complied with by it hereunder at or prior to the  Effective
    Date.

        (b)    OFFICER'S  CERTIFICATE.    FBS  shall  have  furnished  to  FFI a
    certificate of the Chief Financial Officer of FBS, dated as of the Effective
    Date, in which such officer shall certify  that he has no reason to  believe
    that the conditions set forth in Section 6.2(a) have not been fulfilled.

        (c)   SHAREHOLDER  APPROVAL.  This  Agreement and the  Merger shall have
    been approved by the  affirmative vote of the  holders of the percentage  of
    FFI  capital stock required for such  approval under the provisions of FFI's
    Charter and Bylaws and the NBCA.

        (d)  MATERIAL ADVERSE CHANGE.   Since the date of this Agreement,  there
    has  been  no  material  adverse  change in,  and  no  event,  occurrence or
    development in the business of FBS or its subsidiaries that, taken  together
    with  other  events,  occurrences  and  developments  with  respect  to such
    business, would have  or would  reasonably be  expected to  have a  material
    adverse  effect  on,  the  business, operations,  results  of  operations or
    financial condition of FBS and its subsidiaries, taken as a whole.

        (e)  FBS RIGHTS  AGREEMENT.  No event  shall have occurred resulting  in
    the  Rights (as  defined in the  FBS Rights Agreement)  being distributed or
    becoming exercisable or triggered.

    6.3.  ADDITIONAL CONDITIONS TO OBLIGATION OF FBS.  The obligation of FBS  to
consummate  the transactions contemplated hereby in accordance with the terms of
this Agreement is also subject to the following conditions:

        (a)  REPRESENTATIONS AND COMPLIANCE.  The representations and warranties
    of FFI in this  Agreement shall have  been true and correct  as of the  date
    hereof, and such representations and warranties shall be true and correct as
    of  the Effective Date  as if made at  and as of  the Effective Date, except
    where the  failure to  be true  and correct  would not  have, or  would  not
    reasonably be expected to have, individually or in the aggregate, a material
    adverse  effect  on  the  business,  operations,  results  of  operations or
    financial condition of FFI  and the Subsidiaries taken  as a whole; and  FFI
    shall  in all material respects have performed each obligation and agreement
    and complied with  each covenant  to be performed  and complied  with by  it
    hereunder at or prior to the Effective Date.

                                      A-29
<PAGE>
        (b)   OFFICERS' CERTIFICATE OF  FFI.  FFI shall  have furnished to FBS a
    certificate of the Chief Executive Officer of FFI, dated as of the Effective
    Date, in which such officer shall certify that such officer has no reason to
    believe that  the conditions  set  forth in  Section  6.3(a) have  not  been
    fulfilled.

        (c)   AFFILIATE LETTERS.   FFI shall  have delivered to  FBS the letters
    required to be delivered pursuant to Section 5.9.

        (d)  GOVERNMENTAL ACTION.  There shall  not be any action taken, or  any
    statute,  rule, regulation, judgment,  order (other than  an order issued in
    connection with  the  regulatory  approvals described  in  Section  6.1)  or
    injunction  proposed,  enacted,  entered, enforced,  promulgated,  issued or
    deemed applicable to  the transactions contemplated  hereby by any  federal,
    state  or other court, government or governmental authority or agency, which
    would reasonably be expected  to, directly or  indirectly, (i) challenge  or
    seek  to make illegal,  or to delay  or otherwise directly  or indirectly to
    restrain or  prohibit, the  consummation  of the  transactions  contemplated
    hereby   or  seek  to  obtain  material   damages  in  connection  with  the
    transactions contemplated hereby, (ii) seek  to prohibit direct or  indirect
    ownership  or operation by FBS of all  or a material portion of the business
    or assets  of FFI  or  any of  the Subsidiaries  or  of FBS  or any  of  its
    subsidiaries,  or to compel FBS or any of  its subsidiaries or FFI or any of
    the Subsidiaries  to dispose  of or  to hold  separately all  or a  material
    portion  of the business or  assets of FBS or any  of its subsidiaries or of
    FFI and the Subsidiaries, taken as a whole, as a result of the  transactions
    contemplated hereby, or (iii) seek to require direct or indirect divestiture
    by  FBS of any material portion of its business or assets or of the business
    or assets of FFI and the Subsidiaries, taken as a whole.

        (e)  MATERIAL ADVERSE CHANGE.   Since the date of this Agreement,  there
    has  been  no  material  adverse  change in,  and  no  event,  occurrence or
    development in the business of FFI or the Subsidiaries that, taken  together
    with  other  events,  occurrences  and  developments  with  respect  to such
    business, would have  or would  reasonably be  expected to  have a  material
    adverse  effect  on,  the  business, operations,  results  of  operations or
    financial condition of FFI and the Subsidiaries, taken as a whole.

        (f)  FFI RIGHTS  AGREEMENT.  No event  shall have occurred resulting  in
    the  Rights (as  defined in the  FFI Rights Agreement)  being distributed or
    becoming exercisable or triggered.

                                   ARTICLE 7
                       TERMINATION, AMENDMENT AND WAIVER

    7.1.  TERMINATION.  This Agreement may be terminated prior to the  Effective
Date:

        (a) by mutual consent of FBS and FFI;

        (b)  by either  FBS or  FFI, if  any of  the conditions  to such party's
    obligation to  consummate the  transactions contemplated  in this  Agreement
    shall have become impossible to satisfy;

        (c)  by either FBS or FFI, if this Agreement and the Merger are not duly
    approved by the  shareholders of FFI  at a meeting  of shareholders (or  any
    adjournment thereof) duly called and held for such purpose;

        (d)  by FBS or FFI if  the Effective Date is not  on or before March 31,
    1996 (unless the failure to consummate the Merger by such date shall be  due
    to  the action  or failure  to act  of the  party seeking  to terminate this
    Agreement in breach of such party's obligations under this Agreement);

        (e) by FBS  if, after the  date hereof,  the Board of  Directors of  FFI
    shall  have  withdrawn,  modified  or  changed  its  recommendation  of this
    Agreement or the Merger;

        (f) by  FBS  if after  the  date hereof,  there  shall have  occurred  a
    "Subsequent Triggering Event" as defined in the Stock Option Agreement;

                                      A-30
<PAGE>
        (g)  by  FBS in  the event  that  the pre-acquisition  investigation and
    review described in Section  5.21 of this  Agreement discloses matters  that
    involve  credit risk, litigation loss  contingencies or financial exposures,
    interest rate risk, operations or data processing exposures or environmental
    exposures and that, in the reasonable judgment of the Board of Directors  of
    FBS,  are of such significance as to  materially and adversely affect, or be
    reasonably  likely  to  materially  and  adversely  affect,  the  reasonable
    expected   financial  or  business  benefits  to  FBS  of  the  transactions
    contemplated by this Agreement; or

        (h) by  FFI  if  there shall  have  occurred,  since the  date  of  this
    Agreement,  a Significant Decline (as defined  below) in the Average Closing
    Price (as defined below)  of FBS Common  Stock as compared  to the price  of
    $43.0417 (the "Conversion Price"). The "Average Closing Price" of FBS Common
    Stock  shall mean the  average of the  closing price of  FBS Common Stock as
    reported on the NYSE for the 20 consecutive trading days ending on the  date
    the  FRB  issues  an  order approving  the  Merger  (the  "Final Calculation
    Period"). A "Significant Decline"  shall be deemed to  have occurred if  (i)
    the  FBS Average Closing Price is less  than 80% of the Conversion Price and
    (ii) the number obtained  by dividing the FBS  Average Closing Price by  the
    Conversion Price is less than the number obtained by dividing the average of
    the  closing prices of the Morgan Stanley 35-Bank Regional Peer Group during
    the Final Calculation  Period by the  average of the  closing prices of  the
    Morgan  Stanley  35-Bank Regional  Bank Peer  Group  for the  20 consecutive
    trading days ending on the day prior to the date hereof and subtracting  .20
    from the quotient.

        (i)  by FBS if on the date  following the execution and delivery of this
    Agreement, FFI does not execute and deliver the Stock Option Agreement.

        (j)  by FBS if, within three  business days of receipt of the  Schedules
    and  documents required to be delivered  pursuant to Section 5.22, the Board
    of Directors  of  FBS  determines  in  its  reasonable  judgment  that  such
    Schedules  or documents disclose matters that are of such significance as to
    materially and adversely affect, or  be reasonably likely to materially  and
    adversely  affect, the reasonable expected financial or business benefits to
    FBS of the transactions contemplated by this Agreement.

Any party desiring to terminate this Agreement shall give written notice of such
termination and the reasons therefor to the other party. Termination pursuant to
Section 7.1(g) shall only  be effective if written  notice thereof is given  not
more  than 21 days after the date FBS receives all of the information on the due
diligence list referenced in Section 5.21.

    7.2.  EFFECT OF TERMINATION.   If this Agreement is terminated as  permitted
by Section 7.1, such termination shall be without liability or obligation of any
party   (or   any   shareholder,  officer,   employee,   agent,   consultant  or
representative of such party)  to any other party  to this Agreement, except  as
provided in Section 8.6 and except that neither party to this Agreement shall be
released from any liabilities or damages arising out of its willful and material
breach of any provision of this Agreement.

    7.3.   AMENDMENT.  This Agreement may not be amended except by an instrument
in writing approved by  the parties to  this Agreement and  signed on behalf  of
each of the parties hereto.

    7.4.  WAIVER.  At any time prior to the Effective Date, any party hereto may
(a)  extend the time for the performance of any of the obligations or other acts
of any other party hereto or (b) waive compliance with any of the agreements  of
any other party or with any conditions to its own obligations, in each case only
to  the extent such obligations, agreements  and conditions are intended for its
benefit.

                                      A-31
<PAGE>
                                   ARTICLE 8
                               GENERAL PROVISIONS

    8.1.   PUBLIC  STATEMENTS.   Neither  FFI  nor  FBS shall  make  any  public
announcement  or statement  with respect  to the  Merger, this  Agreement or any
related transactions without the approval of the other party; provided, however,
that either FBS or FFI may, upon reasonable notice to the other party, make  any
public  announcement  or  statement  that it  believes  is  required  by federal
securities law. To the extent practicable, each of FBS and FFI will consult with
the other with respect to any such public announcement or statement.

    8.2.  NOTICES.  All notices  and other communications hereunder shall be  in
writing  and shall be  sufficiently given if  made by hand  delivery, by fax, by
telecopier, by overnight delivery  service, or by  registered or certified  mail
(postage  prepaid and return receipt requested)  to the parties at the following
addresses (or at such other address for a  party as shall be specified by it  by
like notice):

       if to FBS:

           First Bank System, Inc.
           First Bank Place
           601 Second Avenue South
           Minneapolis, Minnesota 55402-4302
           Attention: Richard A. Zona, Vice Chairman
             and Chief Financial Officer
           Fax: (612) 973-0410

       with a copy to:

           Dorsey & Whitney P.L.L.P.
           220 South Sixth Street
           Minneapolis, Minnesota 55402
           Attention: Lee R. Mitau, Esq.
           Fax: (612) 340-8738

       if to FFI:

           FirsTier Financial, Inc.
           1700 Farnam Street
           Omaha, Nebraska 68102-2183
           Attention: David A. Rismiller
             Chairman, President and
             Chief Executive Officer
           Fax: (402) 348-6221

       with a copy to:

           Wachtell, Lipton, Rosen & Katz
           51 West 52nd Street
           New York, New York 10019
           Attention: Edward D. Herlihy, Esq.
           Fax: (212) 403-2000

    All  such notices and other communications shall be deemed to have been duly
given as follows: when delivered by hand, if personally delivered; five business
days after being deposited in the  mail, postage prepaid, if delivered by  mail;
when  receipt acknowledged, if faxed or telecopied; and the next day after being
delivered to an overnight delivery service.

    8.3.   INTERPRETATION.   When  a  reference is  made  in this  Agreement  to
subsidiaries of FBS, the word "subsidiary" means any "majority-owned subsidiary"
(as defined in Rule 12b-2 under the 1934

                                      A-32
<PAGE>
Act)  of FBS, as the  context requires; provided, however,  that neither FFI nor
any of the Subsidiaries shall at any time be considered a subsidiary of FBS  for
purposes  of this  Agreement. The headings  contained in this  Agreement are for
reference purposes  only  and  shall  not  affect in  any  way  the  meaning  or
interpretation  of this Agreement. References to  Sections and Articles refer to
Sections and Articles of this Agreement  unless otherwise stated. Words such  as
"herein," "hereinafter," "hereof," "hereto," "hereby" and "hereunder," and words
of  like import, unless the context  requires otherwise, refer to this Agreement
(including the Exhibits and  Schedules hereto). As used  in this Agreement,  the
masculine,  feminine and neuter genders shall be deemed to include the others if
the context requires.

    8.4.  SEVERABILITY.  If any term, provision, covenant or restriction of this
Agreement is held by a  court of competent jurisdiction  to be invalid, void  or
unenforceable,   the  remainder   of  the   terms,  provisions,   covenants  and
restrictions of this Agreement shall remain  in full force and effect and  shall
in  no way be affected, impaired or invalidated, and the parties shall negotiate
in good faith to modify this Agreement and to preserve each party's  anticipated
benefits under this Agreement.

    8.5.   MISCELLANEOUS.  This Agreement (together with all other documents and
instruments referred  to  herein): (a)  constitutes  the entire  agreement,  and
supersedes  all other prior agreements and  undertakings, both written and oral,
among the  parties,  with respect  to  the subject  matter  hereof; (b)  is  not
intended  to confer upon any  person other than each  party hereto any rights or
remedies hereunder, except as provided in Section 5.14; (c) shall be governed in
all respects, including  validity, interpretation  and effect,  by the  internal
laws  of the  State of  Minnesota, without  giving effect  to the  principles of
conflict of laws thereof; and (d) shall  not be assigned by operation of law  or
otherwise.  This Agreement  may be  executed in  two or  more counterparts which
together shall constitute a single agreement.

    8.6.    SURVIVAL  OF  REPRESENTATIONS,   WARRANTIES  AND  COVENANTS.     The
representations and warranties of the parties set forth herein shall not survive
the  consummation  of  the Merger,  but  covenants that  specifically  relate to
periods, activities or obligations  subsequent to the  Merger shall survive  the
Merger.  In addition, if  this Agreement is terminated  pursuant to Section 7.1,
the covenants  contained in  Sections 5.3,  5.6(c) and  7.2 shall  survive  such
termination.

    IN WITNESS WHEREOF, FBS and FFI have caused this Agreement to be executed on
the date first written above by their respective officers.

                                          FIRST BANK SYSTEM, INC.

                                          By         /s/ RICHARD A. ZONA
                                      ------------------------------------------
                                          Its       Vice Chairman and Chief
                                      ------------------------------------------
                                                        Financial Officer
                                      ------------------------------------------

                                          FIRSTIER FINANCIAL, INC.

                                          By        /s/ DAVID A. RISMILLER
                                      ------------------------------------------
                                          Its       Chairman, President and
                                      ------------------------------------------
                                                    Chief Executive Officer
                                      ------------------------------------------

                                      A-33
<PAGE>
                                                                      APPENDIX B
                 [MORGAN STANLEY & CO. INCORPORATED LETTERHEAD]

                                                                January 19, 1996
Board of Directors
FirsTier Financial, Inc.
1700 Farnam Street
Omaha, Nebraska 68102

Gentlemen:

    We  understand  that FirsTier  Financial, Inc.  ("FirsTier") and  First Bank
System, Inc. ("First Bank System"), have entered into an Agreement of Merger and
Consolidation, dated  as  of August  6,  1995 (the  "Merger  Agreement"),  which
provides,  among other things,  for the merger  of FirsTier with  and into First
Bank System (the "Merger").  Pursuant to the Merger,  each outstanding share  of
common  stock,  par value  $5.00 per  share, of  FirsTier (the  "FirsTier Common
Stock"), other than shares held in treasury or held by First Bank System or  any
wholly  owned subsidiary  of First  Bank System,  will be  converted into 0.8829
shares (the "Exchange  Ratio") of common  stock, par value  $1.25 per share,  of
First  Bank  System  (the  "First  Bank System  Common  Stock").  The  terms and
conditions of the Merger are more fully set forth in the Merger Agreement.

    You have asked for our opinion as to whether the Exchange Ratio pursuant  to
the  Merger  Agreement is  fair from  a financial  point of  view to  holders of
FirsTier Common Stock (other than First Bank System and its affiliates).

    For purposes of the opinion set forth herein, we have:

        (i) analyzed certain publicly  available financial statements and  other
    information of FirsTier and First Bank System, respectively;

        (ii)  analyzed certain internal financial statements and other financial
    and operating data concerning FirsTier and First Bank System prepared by the
    managements of the FirsTier and First Bank System, respectively;

       (iii) analyzed certain financial  projections prepared by the  management
    of FirsTier;

       (iv)  reviewed  certain  public research  reports  concerning  First Bank
    System and discussed  these research reports,  including earnings  estimates
    contained therein, with the management of First Bank System;

        (v)  discussed the past  and current operations  and financial condition
    and the prospects of FirsTier and  First Bank System with senior  executives
    of FirsTier and First Bank System, respectively;

       (vi)  reviewed the reported prices and  trading activity for the FirsTier
    Common Stock and the First Bank System Common Stock;

       (vii) compared the financial performance  of FirsTier and the prices  and
    trading  activity of  the FirsTier Common  Stock with that  of certain other
    comparable publicly-traded companies and their securities;

      (viii) reviewed the financial terms, to the extent publicly available,  of
    certain comparable precedent transactions;

       (ix)  participated in discussions  and negotiations among representatives
    of the FirsTier and First Bank System and their legal advisors;

                                      B-1
<PAGE>
        (x) reviewed the Merger Agreement, and a certain Stock Option  Agreement
    dated  as of August 6, 1995 among FirsTier and First Bank System and certain
    other parties and certain related documents; and

       (xi) performed such other analyses as we have deemed appropriate.

    We have  assumed  and  relied  upon  without  independent  verification  the
accuracy  and completeness of the information reviewed by us for the purposes of
this opinion. With respect  to the financial projections,  we have assumed  that
they  have  been  reasonably prepared  on  bases reflecting  the  best currently
available estimates  and  judgments  of  the  future  financial  performance  of
FirsTier.  We have not made any independent valuation or appraisal of the assets
or liabilities  of  the  Company, nor  have  we  been furnished  with  any  such
appraisals  and we have  not examined any  loan files of  FirsTier or First Bank
System.  Our  opinion  is  necessarily  based  on  economic,  market  and  other
conditions  as in effect on, and the information made available to us as of, the
date hereof.

    We have acted as financial advisor to the Board of Directors of FirsTier  in
connection with this transaction and will receive a fee for our services. In the
past,  Morgan  Stanley  &  Co. Incorporated  and  its  affiliates  have provided
financial advisory and financing services for FirsTier and First Bank System and
have received  fees for  the rendering  of these  services. In  September  1995,
Morgan  Stanley acted as  lead manager in  connection with the  offering of $250
million subordinated notes due 2007 of First Bank System.

    It is understood that  this letter is  for the information  of the Board  of
Directors  of FirsTier  and may not  be used  for any other  purpose without our
prior written consent.

    Based on the foregoing, we  are of the opinion on  the date hereof that  the
Exchange  Ratio pursuant to the Merger Agreement  is fair from a financial point
of view to holders of  FirsTier Common Stock (other  than First Bank System  and
its affiliates).

                                          Very truly yours,

                                          MORGAN STANLEY & CO. INCORPORATED

                                          By:      /s/  DONALD A. MOORE, JR.

                                             -----------------------------------
                                              Donald A. Moore, Jr.
                                             Managing Director

                                      B-2
<PAGE>

                                    PART II

                      INFORMATION NOT REQUIRED IN PROSPECTUS


ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Under Delaware law, the directors and officers of First Bank System,
Inc. (the "Company") are entitled, under certain circumstances, to be
indemnified by the Company against all expenses and liabilities incurred or
imposed upon them as a result of suits brought against them as such directors
and officers, if they act in good faith and in a manner they reasonably
believe to be in or not opposed to the best interests of the Company, and,
with respect to any criminal action or proceeding, have no reasonable cause
to believe their conduct was unlawful, except that no indemnification shall
be made against expenses in respect of any claim, issue or matter as to which
they shall have been adjudged to be liable to the Company, unless and only to
the extent that the court in which such action or suit was brought shall
determine upon application that, despite the adjudication of liability but in
view of all the circumstances of the case, they are fairly and reasonably
entitled to be indemnified for such expenses which such court shall deem
proper.  Any such indemnification may be made by the Company only as
authorized in each specific case upon a determination by the stockholders or
disinterested directors that indemnification is proper because the indemnitee
has met the applicable statutory standard of conduct.

     Article Ninth of the Company's Restated Certificate of Incorporation, as
amended, provides that a director shall not be liable to the Company or its
stockholders for monetary damages for a breach of fiduciary duty as a
director, except for liability (i) for any breach of the director's duty of
loyalty to the Company or its stockholders, (ii) for acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of
law, (iii) under the Delaware statutory provisions making directors
personally liable for unlawful dividends or unlawful stock repurchases or
redemptions or (iv) for any transaction from which the director derived an
improper personal benefit.

     The Bylaws of the Company provide that the officers and directors of the
Company and certain others shall be indemnified substantially to the same
extent permitted by Delaware law.

     The Company maintains a standard policy of officers' and directors'
liability insurance.

ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

     (a)  Exhibits.

     2.1  Agreement of Merger and Consolidation dated August 6,
          1995, by and between First Bank System, Inc., and FirsTier
          Financial, Inc.  (Included in Proxy Statement/Prospectus as
          Appendix A.)  The registrant agrees to furnish supplementally a
          copy of omitted schedules to the Commission upon request.

     4.1  Restated Certificate of Incorporation, as amended, of
          First Bank System, Inc.  (Incorporated by reference to Exhibit 2.1
          to the registrant's Form 8-A/A-2 dated October 6, 1994, File No.
          1-6880.)

     4.2  Certificate of Designation for First Bank System, Inc.
          Series 1990A Preferred Stock. (Incorporated by reference to
          Exhibit 4.4 to Amendment No. 1 to the registrant's Registration
          Statement on Form S-3, File No. 33-42650.)

<PAGE>

     4.3  Certificate of Designation for First Bank System, Inc.
          Series 1991A Convertible Preferred Stock.  (Incorporated by
          reference to Exhibit 4.3 to the registrant's Registration
          Statement on Form S-4, File No. 33-50700.)

     4.4  Certificate of Designation for First Bank System, Inc.
          Series A Junior Participating Preferred Stock, as amended.
          (Incorporated by reference to Exhibit 2.4 to the registrant's Form
          8-A/A-2 dated October 6, 1994, File No. 1-6880.)

     4.5  Bylaws of First Bank System, Inc. (Filed herewith.)

     4.6  Rights Agreement dated as of December 21, 1988, between
          First Bank System, Inc. and Morgan Shareholder Services
          Trust Company (now known as First Chicago Trust Company
          of New York), as amended by Amendment No. 1 dated as of
          May 30, 1990, Amendment No. 2 dated as of February 17,
          1993 and Amendment No. 3 dated November 9, 1995. (Filed
          herewith.)

     4.7  Stock Purchase Agreement, dated as of May 30, 1990,
          among Corporate Partners, L.P., Corporate Offshore Partners, L.P.,
          The State Board of Administration of Florida and First Bank
          System, Inc. (without exhibits).  (Incorporated by reference to
          Exhibit 4.8 to Amendment No. 1 to the registrant's Registration
          Statement on Form S-3, File No. 33-42650.)

     4.8  First Amendment, dated as of June 30, 1990, to Stock
          Purchase Agreement among Corporate Partners, L.P., Corporate
          Offshore Partners, L.P., The State Board of Administration of
          Florida and First Bank System, Inc.  (Incorporated by reference to
          Exhibit 4.9 to Amendment No. 1 to the registrant's Registration
          Statement on Form S-3, File No. 33-42650.)

     4.9  Second Amendment, dated July 18, 1990, to Stock Purchase
          Agreement among Corporate Partners, L.P., Corporate Offshore
          Partners, L.P., The State Board of Administration of Florida and
          First Bank System, Inc.  (Incorporated by reference to Exhibit
          4.10 to Amendment No. 1 to the registrant's Registration Statement
          on Form S-3, File No. 33-42650.)

     4.10 Stock Purchase Agreement, dated as of May 30, 1990,
          between The State Board of Administration of Florida and First
          Bank System, Inc. (without exhibits).  (Incorporated by reference
          to Exhibit 4.11 to Amendment No. 1 to the registrant's
          Registration Statement on Form S-3, File No. 33-42650.)

     4.11 Form of Periodic Stock Purchase Right.  (Incorporated by
          reference to Exhibit 4.12 to Amendment No. 1 to the registrant's
          Registration Statement on Form S-3, File No. 33-42650.)

     4.12 Form of Risk Event Warrant.  (Incorporated by reference
          to Exhibit 4.13 to Amendment No. 1 to the registrant's
          Registration Statement on Form S-3, File No. 33-42650.)

     4.13 Registration Rights Agreement, dated as of July 18,
          1990, among Corporate Partners, L.P., Corporate Offshore Partners,
          L.P., The State Board of Administration of Florida and First Bank
          System, Inc.  (Incorporated by reference to Exhibit 4.14 to
          Amendment No. 1 to the registrant's Registration Statement on Form
          S-3, File No. 33-42650.)

<PAGE>

     4.14 Registration Rights Agreement, dated as of July 18,
          1990, between The State Board of Administration of Florida and
          First Bank System, Inc.  (Incorporated by reference to Exhibit
          4.14 to Amendment No. 1 to the registrant's Registration Statement
          on Form S-3, File No. 33-42650.)

      5.1 Opinion and consent of Dorsey & Whitney P.L.L.P. as to
          legality of the securities being registered. (Filed herewith.)

      8.1 Opinion and consent of Wachtell, Lipton, Rosen & Katz as
          to certain federal income tax consequences described in the Proxy
          Statement/Prospectus. (Filed herewith.)

     10.1 Agreement and Plan of Merger dated November 5, 1995, by
          and among First Bank System, Inc., Eleven Acquisition Corp. and
          First Interstate Bancorp.  (Incorporated by reference to Exhibit
          2.1 to the registrant's Current Report on Form 8-K filed November
          13, 1995, File No. 1-6880.)  The registrant agrees to furnish
          supplementally a copy of omitted schedules to the Commission upon
          request.

     10.2 Stock Option Agreement, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.2 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)

     10.3 Stock Option Agreement, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.3 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)

     10.4 Termination Fee Letter, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.4 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)

     10.5 Termination Fee Letter, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.5 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)

     23.1 Consent of Dorsey & Whitney P.L.L.P.  (Included in
          Exhibit 5.1.)

     23.2 Consent of Wachtell, Lipton, Rosen & Katz.  (Included in
          Exhibit 8.1.)

     23.3 Consent of Ernst & Young LLP (relating to financial
          statements of First Bank System, Inc.). (Filed herewith.)

     23.4 Consent of Ernst & Young LLP (relating to financial
          statements of First Interstate Bancorp). (Filed herewith.)

     23.5 Consent of Arthur Andersen LLP (relating to financial
          statements of FirsTier Financial, Inc.). (Filed herewith.)

     23.6 Consent of Morgan Stanley & Co. Incorporated. (Filed herewith.)

     24.1 Powers of Attorney. (Filed herewith.)

     99.1 Form of proxy for Special Meeting of shareholders of
          FirsTier Financial, Inc. (Filed herewith.)

     99.2 Articles of Incorporation of FirsTier Financial,
          Inc., as amended. (Incorporated by reference to Exhibits 3(a) and
          3(a)(1) to the Annual Report on Form 10-K of FirsTier Financial,
          Inc. for the year ended December 31, 1994, File No. 0-4515.)

     99.3 Bylaws of FirsTier Financial, Inc., as amended. (Incorporated
          by reference to Exhibit 3 of Form 8 amending Form 10-Q
          of FirsTier Financial, Inc. for the period ended March 31,
          1993, File No. 0-4515.)

<PAGE>

     99.4 Stock Option Agreement, dated as of August 6, 1995,
          between First Bank System, Inc. and FirsTier Financial, Inc.
          (Incorporated by reference to Exhibit 2.2 to the registrant's
          Current Report on Form 8-K filed August 18, 1995, File No. 1-6880.)

     99.5 Opinion of Morgan Stanley & Co. Incorporated. (Included in Proxy
          Statement/Prospectus as Appendix B.)

     99.6 Termination Agreement, dated as of November 29, 1995, between First
          Bank System, Inc., FirsTier Financial Inc., and Jack R. McDonnell.
          (Filed herewith.)

     99.7 Employment Agreement dated August 4, 1995 by and between FirsTier
          Financial, Inc. and David A. Rismiller. (Filed herewith.)

     (b)  Financial Statement Schedules.

          None.

     (c)  Reports, Opinions and Appraisals.

          Opinion of Morgan Stanley & Co. Incorporated is included in the
Proxy Statement/Prospectus as Appendix B and referred to above as Exhibit
99.5.

ITEM 22.  UNDERTAKINGS.

     (a)  The undersigned registrant hereby undertakes:

          (1)  To file, during any period in which offers or sales are being
made, a post-effective amendment to this registration statement:

      (i)  To include any prospectus required by section 10(a)(3) of
     the Securities Act of 1933;

      (ii) To reflect in the prospectus any facts or events arising
     after the effective date of the registration statement (or the most
     recent post-effective amendment thereof) which, individually or in the
     aggregate, represent a fundamental change in the information set forth
     in the registration statement.  Notwithstanding the foregoing, any
     increase or decrease in volume of securities offered (if the total
     dollar value of securities offered would not exceed that which was
     registered) and any deviation from the low or high end of the estimated
     maximum offering range may be reflected in the form of prospectus filed
     with the Commission pursuant to Rule 424(b) if, in the aggregate, the
     changes in volume and price represent no more than a 20% change in the
     maximum aggregate offering price set forth in the "Calculation of
     Registration Fee" table in the effective registration statement.

     (iii) To include any material information with respect to the plan
     of distribution not previously disclosed in the registration statement
     or any material change to such information in the registration
     statement.

          (2)  That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to
be a new registration statement relating to the securities offered therein,
and the offering of such securities at that time shall be deemed to be the
initial bona fide offering thereof.

          (3)  To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

     (b)  The undersigned registrant hereby undertakes:  that, for purposes
of determining any liability under the Securities Act of 1933, each filing of
the registrant's annual report pursuant to section 13(a) or section 15(d) of
the Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities

<PAGE>

offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.

     (c)  The undersigned registrant hereby undertakes as follows: that prior
to any public reoffering of the securities registered hereunder through use
of a prospectus which is a part of this registration statement, by any person
or party who is deemed to be an underwriter within the meaning of Rule
145(c), the issuer undertakes that such reoffering prospectus will contain
the information called for by the applicable registration form with respect
to reofferings by persons who may be deemed underwriters, in addition to the
information called for by the other Items of the applicable form.

     (d)  The registrant undertakes that every prospectus (i) that is filed
pursuant to paragraph (c) immediately preceding, or (ii) that purports to
meet the requirements of section 10(a)(3) of the Act and is used in
connection with an offering of securities subject to Rule 415, will be filed
as a part of an amendment to the registration statement and will not be used
until such amendment is effective, and that, for purposes of determining any
liability under the Securities Act of 1933, each such post-effective
amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof.

     (e)  Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and
controlling persons of the registrant pursuant to its articles, bylaws or
otherwise, the registrant has been advised that in the opinion of the
Securities  and Exchange  Commission such  indemnification is against public
policy as expressed in the Act and is, therefore, unenforceable.  In the
event that a claim for indemnification against such liabilities (other than
the payment by the registrant of expenses incurred or paid by a director,
officer or controlling person of the registrant in the successful defense of
any action, suit or proceeding) is asserted by such director, officer or
controlling person in connection with the securities being registered, the
registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against
public policy as expressed in the Act and will be governed by the final
adjudication of such issue.

     (f)  The undersigned registrant hereby undertakes to respond to requests
for information that is incorporated by reference into the prospectus
pursuant to Items 4, 10(b), 11, or 13 of this Form, within one business day
of receipt of such request, and to send the incorporated documents by first
class mail or other equally prompt means.  This includes information
contained in documents filed subsequent to the effective date of the
registration statement through the date of responding to the request.

     (g)  The undersigned registrant hereby undertakes to supply by means of
a post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the registration statement when it became effective.

<PAGE>

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the
registrant has duly caused this registration statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of
Minneapolis, State of Minnesota, on January 18, 1996.

                                 FIRST BANK SYSTEM, INC.



                                 By  /s/ JOHN F. GRUNDHOFER
                                   ---------------------------------
                                         John F. Grundhofer
                                 Chairman, President and Chief Executive Officer


    Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.

        SIGNATURE AND TITLE                                      DATE
        -------------------                                      ----

        /s/ JOHN F. GRUNDHOFER                             January 18, 1996
      ---------------------------------------------
            John F. Grundhofer,
      Chairman, President, Chief Executive Officer
       and Director (principal executive officer)


        /s/ RICHARD A. ZONA                                January 18, 1996
      ---------------------------------------------
            Richard A. Zona,
       Vice Chairman and Chief Financial
       Officer (principal financial officer)


        /s/ DAVID J. PARRIN                                January 18, 1996
      ---------------------------------------------
            David J. Parrin,
       Senior Vice President and Controller
       (principal accounting officer)


                             *                             January 18, 1996
      ---------------------------------------------
             Roger L. Hale, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Delbert W. Johnson, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Norman M. Jones, Director


                             *                             January 18, 1996
      ---------------------------------------------
             John H. Kareken, Director




<PAGE>


                             *                             January 18, 1996
      ---------------------------------------------
             Richard L. Knowlton, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Jerry W. Levin, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Kenneth A. Macke, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Marilyn C. Nelson, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Edward J. Phillips, Director


      ---------------------------------------------
             James J. Renier, Director


                             *                             January 18, 1996
      ---------------------------------------------
             S. Walter Richey, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Richard L. Robinson, Director


      ---------------------------------------------
             Richard L. Schall, Director


                             *                             January 18, 1996
      ---------------------------------------------
             Lyle E. Schroeder, Director


* By   /s/ DAVID J. PARRIN
      ---------------------------------------------
           David J. Parrin,
       Pro se and as Attorney-in-Fact


<PAGE>

                                 EXHIBIT INDEX

<TABLE>
<CAPTION>

 EXHIBIT
  NUMBER                          DESCRIPTION                                  PAGE
 -------  ------------------------------------------------------------------  ------
<S>       <C>                                                                 <C>

     2.1  Agreement of Merger and Consolidation dated August 6,
          1995, by and between First Bank System, Inc., and FirsTier
          Financial, Inc.  (Included in Proxy Statement/Prospectus as
          Appendix A.)  The registrant agrees to furnish supplementally a
          copy of omitted schedules to the Commission upon request.

     4.1  Restated Certificate of Incorporation, as amended, of
          First Bank System, Inc.  (Incorporated by reference to Exhibit 2.1
          to the registrant's Form 8-A/A-2 dated October 6, 1994, File No.
          1-6880.)

     4.2  Certificate of Designation for First Bank System, Inc.
          Series 1990A Preferred Stock. (Incorporated by reference to
          Exhibit 4.4 to Amendment No. 1 to the registrant's Registration
          Statement on Form S-3, File No. 33-42650.)

     4.3  Certificate of Designation for First Bank System, Inc.
          Series 1991A Convertible Preferred Stock.  (Incorporated by
          reference to Exhibit 4.3 to the registrant's Registration
          Statement on Form S-4, File No. 33-50700.)

     4.4  Certificate of Designation for First Bank System, Inc.
          Series A Junior Participating Preferred Stock, as amended.
          (Incorporated by reference to Exhibit 2.4 to the registrant's Form
          8-A/A-2 dated October 6, 1994, File No. 1-6880.)

     4.5  Bylaws of First Bank System, Inc. (Filed herewith.)

     4.6  Rights Agreement dated as of December 21, 1988, between
          First Bank System, Inc. and Morgan Shareholder Services
          Trust Company (now known as First Chicago Trust Company
          of New York), as amended by Amendment No. 1 dated as of
          May 30, 1990, Amendment No. 2 dated as of February 17,
          1993 and Amendment No. 3 dated November 9, 1995. (Filed
          herewith.)

     4.7  Stock Purchase Agreement, dated as of May 30, 1990,
          among Corporate Partners, L.P., Corporate Offshore Partners, L.P.,
          The State Board of Administration of Florida and First Bank
          System, Inc. (without exhibits).  (Incorporated by reference to
          Exhibit 4.8 to Amendment No. 1 to the registrant's Registration
          Statement on Form S-3, File No. 33-42650.)

     4.8  First Amendment, dated as of June 30, 1990, to Stock
          Purchase Agreement among Corporate Partners, L.P., Corporate
          Offshore Partners, L.P., The State Board of Administration of
          Florida and First Bank System, Inc.  (Incorporated by reference to
          Exhibit 4.9 to Amendment No. 1 to the registrant's Registration
          Statement on Form S-3, File No. 33-42650.)

</TABLE>

<PAGE>


<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER                          DESCRIPTION                                  PAGE
 -------  ------------------------------------------------------------------  ------
<S>       <C>                                                                 <C>
     4.9  Second Amendment, dated July 18, 1990, to Stock Purchase
          Agreement among Corporate Partners, L.P., Corporate Offshore
          Partners, L.P., The State Board of Administration of Florida and
          First Bank System, Inc.  (Incorporated by reference to Exhibit
          4.10 to Amendment No. 1 to the registrant's Registration Statement
          on Form S-3, File No. 33-42650.)

     4.10 Stock Purchase Agreement, dated as of May 30, 1990,
          between The State Board of Administration of Florida and First
          Bank System, Inc. (without exhibits).  (Incorporated by reference
          to Exhibit 4.11 to Amendment No. 1 to the registrant's
          Registration Statement on Form S-3, File No. 33-42650.)

     4.11 Form of Periodic Stock Purchase Right.  (Incorporated by
          reference to Exhibit 4.12 to Amendment No. 1 to the registrant's
          Registration Statement on Form S-3, File No. 33-42650.)

     4.12 Form of Risk Event Warrant.  (Incorporated by reference
          to Exhibit 4.13 to Amendment No. 1 to the registrant's
          Registration Statement on Form S-3, File No. 33-42650.)

     4.13 Registration Rights Agreement, dated as of July 18,
          1990, among Corporate Partners, L.P., Corporate Offshore Partners,
          L.P., The State Board of Administration of Florida and First Bank
          System, Inc.  (Incorporated by reference to Exhibit 4.14 to
          Amendment No. 1 to the registrant's Registration Statement on Form
          S-3, File No. 33-42650.)

     4.14 Registration Rights Agreement, dated as of July 18,
          1990, between The State Board of Administration of Florida and
          First Bank System, Inc.  (Incorporated by reference to Exhibit
          4.14 to Amendment No. 1 to the registrant's Registration Statement
          on Form S-3, File No. 33-42650.)

      5.1 Opinion and consent of Dorsey & Whitney P.L.L.P. as to
          legality of the securities being registered. (Filed herewith.)

      8.1 Opinion and consent of Wachtell, Lipton, Rosen & Katz as
          to certain federal income tax consequences described in the Proxy
          Statement/Prospectus. (Filed herewith.)

     10.1 Agreement and Plan of Merger dated November 5, 1995, by
          and among First Bank System, Inc., Eleven Acquisition Corp. and
          First Interstate Bancorp.  (Incorporated by reference to Exhibit
          2.1 to the registrant's Current Report on Form 8-K filed November
          13, 1995, File No. 1-6880.)  The registrant agrees to furnish
          supplementally a copy of omitted schedules to the Commission upon
          request.

     10.2 Stock Option Agreement, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.2 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)

     10.3 Stock Option Agreement, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.3 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)
</TABLE>

<PAGE>

<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER                          DESCRIPTION                                  PAGE
 -------  ------------------------------------------------------------------  ------
<S>       <C>                                                                 <C>
     10.4 Termination Fee Letter, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.4 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)

     10.5 Termination Fee Letter, dated as of November 5, 1995,
          between First Bank System, Inc. and First Interstate Bancorp.
          (Incorporated by reference to Exhibit 2.5 to the registrant's
          Current Report on Form 8-K filed November 13, 1995, File No.
          1-6880.)

     23.1 Consent of Dorsey & Whitney P.L.L.P.  (Included in
          Exhibit 5.1.)

     23.2 Consent of Wachtell, Lipton, Rosen & Katz.  (Included in
          Exhibit 8.1.)

     23.3 Consent of Ernst & Young LLP (relating to financial
          statements of First Bank System, Inc.). (Filed herewith).

     23.4 Consent of Ernst & Young LLP (relating to financial
          statements of First Interstate Bancorp). (Filed herewith).

     23.5 Consent of Arthur Andersen LLP (relating to financial
          statements of FirsTier Financial, Inc.). (Filed herewith).

     23.6 Consent of Morgan Stanley & Co. Incorporated. (Filed herewith).

     24.1 Powers of Attorney. (Filed herewith).

     99.1 Form of proxy for Special Meeting of shareholders of
          FirsTier Financial, Inc. (Filed herewith).

     99.2 Articles of Incorporation of FirsTier Financial,
          Inc., as amended. (Incorporated by reference to Exhibits 3(a) and
          3(a)(1) to the Annual Report on Form 10-k of FirsTier Financial,
          Inc. for the year ended December 31, 1994, File No. 0-4515.)

     99.3 Bylaws of FirsTier Financial, Inc., as amended. (Incorporated
          by reference to Exhibit 3 of Form 8 amending Form 10-Q
          of FirsTier Financial, Inc. for the period ended March 31,
          1993, File No. 0-4515.)

     99.4 Stock Option Agreement, dated as of August 6, 1995,
          between First Bank System, Inc. and FirsTier Financial, Inc.
          (Incorporated by reference to Exhibit 2.2 to the registrant's
          Current Report on Form 8-k filed August 18, 1995 File No. 1-6880.)

     99.5 Opinion of Morgan Stanley & Co. Incorporated. (Included in Proxy
          Statement/Prospectus as Appendix B.)

     99.6 Termination Agreement, dated as of November 29, 1995, between First
          Bank System, Inc., FirsTier Financial Inc., and Jack R. McDonnell.
          (Filed herewith.)

     99.7 Employment Agreement dated August 4, 1995 by and between FirsTier
          Financial, Inc. and David A. Rismiller. (Filed herewith.)
</TABLE>


<PAGE>


                                                                  Exhibit 4.5

                                     BYLAWS
                                       OF
                             FIRST BANK SYSTEM, INC.


                                   ARTICLE I.
                                     OFFICES

Section 1. OFFICES.

     The registered office of the Corporation in the State of Delaware shall be
in the City of Wilmington, County of New Castle, State of Delaware.

     The Corporation shall have offices at such other places as the Board of
Directors may from time to time determine.

                                   ARTICLE II.
                                  STOCKHOLDERS

Section 1.  ANNUAL MEETING.
            ---------------

     The annual meeting of the stockholders for the election of Directors and
for the transaction of such other business as may properly come before the
meeting shall be held on such date as the Board of Directors shall each year
fix.  Each such annual meeting shall be held at such place, within or without
the State of Delaware, and hour as shall be determined by the Board of
Directors.  The day, place and hour of such annual meeting shall be specified in
the notice of annual meeting.

     The meeting may be adjourned from time to time and place to place until its
business is completed.

Section 2.  SPECIAL MEETING.
            ----------------

     Special meetings of stockholders may be called by the Board of Directors or
the chief executive officer.  The notice of such meeting shall state the purpose
of such meeting and no business shall be transacted thereat except as stated in
the notice thereof.  Any such meeting may be held at such place within or
without the State of Delaware as may be fixed by the Board of Directors or the
Chief Executive Officer, and as may be stated in the notice of such meeting.

Section 3.   NOTICE OF MEETING.
             ------------------

     Notice of every meeting of the stockholders shall be given in the manner
prescribed by law.


<PAGE>

Section 4.  QUORUM.
            -------

     Except as otherwise required by law, the Certificate of Incorporation or
these Bylaws, the holders of not less than one-third of the shares entitled to
vote at any meeting of the stockholders, present in person or by proxy, shall
constitute a quorum and the act of the majority of such quorum shall be deemed
the act of the stockholders.

     If a quorum shall fail to attend any meeting, the chairman of the meeting
may adjourn the meeting to another place, date, or time.

Section 5.  QUALIFICATION OF VOTERS.
            ------------------------

     The Board of Directors may fix a day and hour not more than sixty nor less
than ten days prior to the day of holding any meeting of the stockholders as the
time as of which the stockholders entitled to notice of and to vote at such
meeting shall be determined.  Only those persons who were holders of record of
voting stock at such time shall be entitled to notice of and to vote at such
meeting.

Section 6.  PROCEDURE.
            ----------

     The presiding officer at each meeting of stockholders shall conclusively
determine the order of business, all matters of procedure and whether or not a
proposal is proper business to be transacted at the meeting and has been
properly brought before the meeting.

     The Board shall appoint two or more inspectors of election to serve at
every meeting of the stockholders at which Directors are to be elected.

Section 7.  NOMINATION OF DIRECTORS.
            ------------------------

     Only persons nominated in accordance with the following procedures shall be
eligible for election by stockholders as Directors.  Nominations of persons for
election as Directors at a meeting of stockholders called for the purpose of
electing Directors may be made (a) by or at the direction of the Board of
Directors or (b) by any stockholder in the manner herein provided.  For a
nomination to be properly made by a stockholder, the stockholder must give
written notice to the Secretary of the Corporation so as to be received at the
principal executive offices of the Corporation not later than (i) with respect
to an annual meeting of stockholders, 90 days in advance of such meeting and
(ii) with respect to a special meeting of stockholders for the election of
directors, the close of business on the seventh day following the date on which
the notice of such meeting is first given to stockholders.  Each such notice
shall set forth (a) the name and address of the stockholder who intends to make
the nomination and of the person or persons to be nominated; (b) a
representation that the stockholder is a holder of record of stock of the
Corporation entitled to vote at such meeting and intends to appear in person or
by proxy at the meeting to nominate the person or persons specified in the
notice; (c) a description of all arrangements or understanding between the
stockholder and each nominee and any other person


                                        2

<PAGE>

or persons (naming such person or persons) pursuant to which the nomination or
nominations are to be made by the stockholder; (d) such other information
regarding each nominee proposed by such stockholder as would have been required
to be included in a proxy statement filed pursuant to the proxy rules of the
Securities and Exchange Commission had each nominee been nominated, or intended
to be nominated, by the Board; and (e) the consent of each nominee to serve as a
Director of the Corporation if so elected.

                                  ARTICLE III.
                                    DIRECTORS

Section 1.  NUMBER AND ELECTION.
            --------------------

     The Board of Directors of the Corporation shall consist of sixteen
Directors.  Commencing with the annual election of Directors by the stockholders
in 1986, the Directors shall be divided into three classes: Class I, Class II
and Class III, each such class, as nearly as possible, to have the same number
of Directors.  The term of office of the initial Class I Directors shall expire
at the annual election of Directors by the stockholders in 1987, the term of
office of the initial Class II Directors shall expire at the annual election of
Directors by the stockholders in 1988, and the term of office of the initial
Class III Directors shall expire at the annual election of Directors by the
stockholders in 1989.  At each annual election of Directors by the stockholders
held after 1985, the Directors chosen to succeed those whose terms have then
expired shall be identified as being of the same class as the Directors they
succeed and shall be elected by the stockholders for a term expiring at the
third succeeding annual election of Directors.  In all cases, Directors shall
hold office until their respective successors are elected by the stockholders
and have qualified.

     In the event that the holders of any class or series of stock of the
Corporation having a preference as to dividends or upon liquidation of the
Corporation shall be entitled, by a separate class vote, to elect Directors as
may be specified pursuant to Article Fourth of the Corporation's Restated
Certificate of Incorporation, then the provisions of such class or series of
stock with respect to their rights shall apply.  The number of Directors that
may be elected by the holders of any such class or series of stock shall be in
addition to the number fixed pursuant to the preceding paragraph.  Except as
otherwise expressly provided pursuant to Article Fourth of the Corporation's
Restated Certificate of Incorporation, the number of Directors that may be so
elected by the holders of any such class or series of stock shall be elected for
terms expiring at the next annual meeting of stockholders and without regard to
the classification of the remaining members of the Board of Directors and
vacancies among Directors so elected by the separate class vote of any such
class or series of stock shall be filled by the remaining Directors elected by
such class or series, or, if there are no such remaining Directors, by the
holders of such class or series in the same manner in which such class or series
initially elected a Director.

     If at any meeting for the election of Directors, more than one class of
stock, voting separately as classes, shall be entitled to elect one or more
Directors and there shall be a quorum of only one such class of stock, that
class of stock shall be entitled to elect its quota of Directors notwithstanding
the absence of a quorum of the other class or classes of stock.


                                        3

<PAGE>

Section 2.  VACANCIES.
            ----------

     Vacancies and newly created directorships resulting from an increase in the
number of Directors shall be filled by a majority of the Directors then in
office, although less than a quorum, or by a sole remaining Director, and such
Directors so chosen shall hold office until the next election of the class for
which such Directors shall have been chosen, and until their successors are
elected and qualified.

Section 3.  REGULAR MEETINGS.
            -----------------

     Regular meetings of the Board shall be held at such times and places as the
Board may from time to time determine.

Section 4.  SPECIAL MEETINGS.
            -----------------

     Special meetings of the Board may be called at any time, at any place and
for any purpose by the Chairman of the Board, or the President, or by any
officer of the Corporation upon the request of a majority of the entire Board.

Section 5.  NOTICE OF MEETINGS.
            -------------------

     Notice of regular meetings of the Board need not be given.

     Notice of every special meeting of the Board shall be given to the
Directors at their usual places of business, or at such other addresses as shall
have been furnished by them for the purpose.  Such notice shall be given at
least twelve hours (three hours if meeting is to be conducted by conference
telephone) before the meeting by telephone or by being personally delivered,
mailed, or telegraphed.  Such notice need not include a statement of the
business to be transacted at, or the purpose of, any such meeting.

Section 6.  QUORUM.
            -------

     Except as may be otherwise provided by law or in these Bylaws, the presence
of one-third of the entire Board shall be necessary and sufficient to constitute
a quorum for the transaction of business at any meeting of the Board, and the
act of a majority of such quorum shall be deemed the act of the Board.

     Less than a quorum may adjourn any meeting of the Board from time to time
without notice.

Section 7.  PARTICIPATION IN MEETINGS BY CONFERENCE TELEPHONE.
            --------------------------------------------------

     Members of the Board, or of any committee thereof, may participate in a
meeting of such Board or committee by means of conference telephone or similar
communications equipment by


                                        4

<PAGE>

means of which all persons participating in the meeting can hear each other and
such participation shall constitute presence in person at such meeting.

Section 8.  POWERS.
            -------

     The business, property, and affairs of the Corporation shall be managed by
or under the direction of its Board of Directors, which shall have and may
exercise all the powers of the Corporation to do all such lawful acts and things
as are not by law, or by the Certificate of Incorporation, or by these Bylaws,
directed or required to be exercised or done by the stockholders.

Section 9.  COMPENSATION OF DIRECTORS.
            --------------------------

     Directors shall receive such compensation for their services as shall be
determined by a majority of the entire Board provided that Directors who are
serving the Corporation as officers or employees and who receive compensation
for their services as such officers or employees shall not receive any salary or
other compensation for their services as Directors.

Section 10.  COMMITTEES OF THE BOARD.
            -------------------------

     A majority of the entire Board of Directors may designate one or more
standing or temporary committees consisting of one or more Directors.  The Board
may invest such committees with such powers and authority, subject to the
limitations of law and such conditions as it may see fit.


                                   ARTICLE IV.
                               EXECUTIVE COMMITTEE

Section 1.  ELECTION.
            ---------

     At any meeting of the Board, an Executive Committee, composed of the
Chairman of the Board, the President, and not less than three other members, may
be elected by a majority vote of the entire Board to serve until the Board shall
otherwise determine.  Either the Chairman of the Board or the President,
whichever is the chief executive officer, shall be the Chairman of the Executive
Committee, and the other shall be the Vice Chairman thereof, unless the Board
shall otherwise determine.  Members of the Executive Committee shall be members
of the Board.

Section 2.  POWERS.
            -------

     The Executive Committee shall have and may exercise all of the powers of
the Board of Directors when the Board is not in session, except that, unless
specifically authorized by the Board of Directors, it shall have no power to (a)
elect directors or officers; (b) alter, amend, or repeal these Bylaws or any
resolution of the Board of Directors relating to the Executive Committee; (c)
declare any dividend or make any other distribution to the stockholders of the


                                        5

<PAGE>

Corporation; (d) appoint any member of the Executive Committee; or (e) take any
other action which legally may be taken only by the Board.

Section 3.  RULES.
            ------

     The Executive Committee shall adopt such rules as it may see fit with
respect to the calling of its meetings, the procedure to be followed thereat,
and its functioning generally.  Any action taken with the written consent of all
members of the Executive Committee shall be as valid and effectual as though
formally taken at a meeting of said Executive Committee.

Section 4.  VACANCIES.
            ----------

     Vacancies in the Executive Committee may be filled at any time by a
majority vote of the entire board.

                                   ARTICLE V.
                                    OFFICERS

Section 1.  NUMBER.
            -------

     The officers of the Corporation shall be appointed or elected by the Board
of Directors.  The officers shall be a Chairman of the Board, a President, one
or more Vice Chairmen, such number of Vice Presidents or other officers as the
Board may from time to time determine, a Secretary, a Treasurer, and a
Controller.  The Chairman of the Board shall be the Chief Executive Officer
unless the Board shall determine otherwise.  The Chairman of the Board or, in
his absence or if such office be vacant, the President shall preside at all
meetings of the stockholders and of the Board.  In the absence of the Chairman
of the Board and the President, any other Board member designated by the Board
may preside at all meetings of the stockholders and of the Board.  The Board of
Directors may appoint or elect a person as a Vice Chairman without regard to
whether such person is a member of the Board of Directors.

Section 2.  STAFF AND DIVISIONAL OFFICERS.
            ------------------------------

     The Chief Executive Officer may appoint at his discretion such persons to
hold the title of staff vice president, divisional chairman, divisional
president, divisional vice president or other similar designation.  Such persons
shall not be officers of the Corporation and shall retain such title at the sole
discretion of the Chief Executive Officer who may at his will and from time to
time make or revoke such designation.

Section 3.  TERMS OF OFFICE.
            ----------------

     All officers, agents, and employees of the Corporation shall hold their
respective offices or positions at the pleasure of the Board of Directors or the
appropriate appointing authority and may be removed at any time by such
authority with or without cause.


                                        6

<PAGE>

Section 4.  DUTIES.
            -------

     The officers, agents, and employees shall perform the duties and exercise
the powers usually incident to the offices or positions held by them
respectively, and/or such other duties and powers as may be assigned to them
from time to time by the Board of Directors or the Chief Executive Officer.


                                   ARTICLE VI.
              INDEMNIFICATION OF DIRECTORS, OFFICERS, AND EMPLOYEES

Section 1.

     The Corporation shall indemnify to the full extent permitted by, and in the
manner permissible under the Delaware General Corporation Law, as amended from
time to time, any person made, or threatened to be made, a party to any action,
suit, or proceeding, whether criminal, civil, administrative, or investigative,
by reason of the fact that such person is or was a director, advisory director,
or officer of the Corporation or any predecessor of the Corporation, or served
any other enterprise as a director, advisory director or officer at the request
of the Corporation or any predecessor of the Corporation.  The foregoing rights
of indemnification shall not be deemed exclusive of any other rights to which
any director, advisory director, or officer may be entitled apart from the
provisions of this Article.

     The Board of Directors in its discretion shall have power on behalf of the
Corporation to indemnify any person, other than a director, advisory director or
officer, made a party to any action, suit, or proceeding by reason of the fact
that such person, or the testator or intestate of such person, is or was an
employee of the Corporation.

Section 2.

     Expenses incurred by a director, advisory director or officer in defending
a civil or criminal action, suit or proceeding may be paid by the Corporation in
advance of the final disposition of such action, suit or proceeding upon receipt
of an undertaking by or on behalf of such director, advisory director or officer
to repay such amount if it shall ultimately be determined that he is not
entitled to be indemnified by the Corporation as authorized by Delaware law.
Such expenses incurred by other employees and agents may be so paid upon such
terms and conditions, if any, as the Board of Directors deems appropriate.

                                  ARTICLE VII.
                                      STOCK

Section 1.  STOCK CERTIFICATES.
            -------------------

     The interest of each stockholder of the Corporation shall be evidenced by a
certificate or certificates for shares of stock in such form as the Board of
Directors may from time to time


                                        7


<PAGE>

prescribe.  The shares of the stock of the Corporation shall be transferable on
the books of the Corporation by the holder thereof in person or by his attorney
upon surrender for cancellation of a certificate or certificates for the same
number of shares with an assignment and power of transfer endorsed thereon or
attached thereto, duly executed, and with such proof of the validity of the
signature as the Corporation or its agents may reasonably require.

Section 2.  SIGNATURES.
            -----------

     The certificates of stock shall be signed by the Chairman, President, or a
Vice President and by the Secretary or an Assistant Secretary, provided that if
such certificates are signed by a transfer agent or transfer clerk and by a
registrar, the signatures of such Chairman, President, Vice President,
Secretary, or Assistant Secretary may be facsimiles, engraves, or printed.

Section 3.  REPLACEMENT.
            ------------

     No certificate for shares of stock in the Corporation shall be issued in
place of any certificate alleged to have been lost, stolen, or destroyed except
upon production of such evidence of such loss, theft, or destruction and upon
delivery to the Corporation of a bond of indemnity in such amount, and upon such
terms and secured by such surety as the Board of Directors or the Executive
Committee in its discretion may require.

                                  ARTICLE VIII.
                                  MISCELLANEOUS

Section 1.  SEAL.
            -----

     The Corporation seal shall bear the name of the Corporation, the date 1929
and the words "Corporation Seal, Delaware".

Section 2.  FISCAL YEAR.
            ------------

     The fiscal year of the Corporation shall begin on the first day of January
in each year and shall end on the thirty-first day of December following.

                                   ARTICLE IX.
                                   AMENDMENTS
Section 1.

     These Bylaws, or any of them, may from time to time be supplemented,
amended, or repealed (a) by a majority vote of the entire Board of Directors or
(b) at any annual or special meeting of the stockholders.


                                        8

<PAGE>

                                   ARTICLE X.
                                 EMERGENCY BYLAW

Section 1.  OPERATIVE EVENT.
            ----------------

     The Emergency Bylaw provided in this Article X shall be operative during
any emergency resulting from an attack on the United States, any nuclear or
atomic incident, or other event which creates a state of disaster of sufficient
severity to prevent the normal conduct and management of the affairs and
business of the Corporation, notwithstanding any different provision in the
preceding articles of the Bylaws or in the Certificate of Incorporation of the
Corporation or in the General Corporation Law of Delaware.  To the extent not
inconsistent with this Emergency Bylaw, the Bylaws provided in the preceding
Articles shall remain in effect during such emergency and upon the termination
of such emergency the Emergency Bylaw shall cease to be operative unless and
until another such emergency shall occur.

Section 2.  NOTICE OF MEETING.
            ------------------

     During any such emergency, any meeting of the Board of Directors may be
called by any officer of the Corporation or by any Director.  Notice shall be
given by such person or by any officer of the Corporation.  The notice shall
specify the place of the meeting, which shall be the head office of the
Corporation at the time if feasible and otherwise any other place specified in
the notice.  The notice shall also specify the time of the meeting.  Notice may
be given only to such of the Directors as it may be feasible to reach at the
time and by such means as may be feasible at the time, including publication or
radio.  If given by mail, messenger, telephone, or telegram, the notice shall be
addressed to the Directors at their residences or business addresses, or such
other places as the person giving the notice shall deem most suitable.  Notice
shall be similarly given, to the extent feasible, to the other persons serving
as Directors referred to in Section 3 below.  Notice shall be given at least two
days before the meeting if feasible in the judgment of the person giving the
notice and otherwise on any shorter time he may deem necessary.

Section 3.  QUORUM.
            -------

     During any such emergency, at any meeting of the Board of Directors, a
quorum shall consist of one-third of the number of Directors fixed at the time
pursuant to Article III of the Bylaws.  If the Directors present at any
particular meeting shall be fewer than the number required for such quorum,
other persons present, to the number necessary to make up such quorum, shall be
deemed Directors for such particular meeting as determined by the following
provisions and in the following order of priority:

     (a)   All Executive Vice Presidents of the Corporation in order of their
     seniority of first election to such office, or if two or more shall have
     been first elected to such office on the same day, in the order of their
     seniority in age; and


                                        9

<PAGE>

     (b)  All Senior Vice Presidents of the Corporation in order of their
     seniority of first election to such office, or if two or more shall have
     been first elected to such office on the same day, in the order of their
     seniority in age; and

     (c)  All Vice Presidents of the Corporation in order of their seniority of
     first election to such office, or if two or more shall have been first
     elected to such office on the same day, in the order of their seniority in
     age; and

     (d)   Any other persons that are designated on a list that shall have been
     approved by the Board of Directors before the emergency, such persons to be
     taken in such order of priority and subject to such conditions as may be
     provided in the resolution approving the list.

Section 4.  LINES OF MANAGEMENT SUCCESSION.
            -------------------------------

     The Board of Directors, during as well as before any such emergency, may
provide and from time to time modify lines of succession in the event that
during such an emergency any or all officers or agents of the Corporation shall
for any reason be rendered incapable of discharging their duties.

Section 5.  OFFICE RELOCATION.
            ------------------

     The Board of Directors, during as well as before any such emergency, may,
effective in the emergency, change the head office or designate several
alternative head offices or regional offices, or authorize the officers to do
so.

Section 6.  LIABILITY.
            ----------

     No officer, director, or employee acting in accordance with this Emergency
Bylaw shall be liable except for willful misconduct.

Section 7.  REPEAL OR AMENDMENT.
            --------------------

     This Emergency Bylaw shall be subject to repeal or change by further action
of the Board of Directors or by action of the stockholders, except that no such
repeal or change shall modify the provisions of the next preceding paragraph
with regard to action or inaction prior to the time of such repeal or change.
Any such amendment of this Emergency Bylaw may make any further or different
provision that may be practical and necessary for the circumstances of the
emergency deems it to be in the best interest of the Corporation to do so.


                                     10


<PAGE>

                                                              Exhibit 4.6








         ______________________________________________________


                         FIRST BANK SYSTEM, INC.

                                   and

               MORGAN SHAREHOLDER SERVICES TRUST COMPANY,
                              Rights Agent

                            Rights Agreement

                      Dated as of December 21, 1988

         ______________________________________________________

<PAGE>

                            TABLE OF CONTENTS

                                                                     Page

Section 1.     Certain Definitions                                      1

Section 2.     Appointment of Rights Agent                              4

Section 3.     Issue of Right Certificates                              4

Section 4.     Form of Right Certificates                               6

Section 5.     Countersignature and Registration                        6

Section 6.     Transfer, Split Up, Combination and
               Exchange of Right Certificates; Mutilated,
               Destroyed, Lost or Stolen Right Certificates             7

Section 7.     Exercise of Rights; Purchase Price; Expiration
               Date of Rights                                           8

Section 8.     Cancellation and Destruction of Right Certificates      10

Section 9.     Availability of Preferred Shares                        10

Section 10.    Preferred Shares Record Date                            11

Section 11.    Adjustment of Purchase Price, Number of Shares or
               Number of Rights                                        11

Section 12.    Certificate of Adjusted Purchase Price or Number
               of Shares                                               21

Section 13.    Consolidation, Merger or Sale or Transfer
               of Assets or Earning Power                              21

Section 14.    Fractional Rights and Fractional Shares                 22

Section 15.    Rights of Action                                        24

Section 16.    Agreement of Right Holders                              24

Section 17.    Right Certificate Holder Not Deemed a Stockholder       25

Section 18.    Concerning the Rights Agent                             25

Section 19.    Merger or Consolidation or Change of Name of Rights
               Agent                                                   26

<PAGE>

Section 20.    Duties of Rights Agent                                  26

Section 21.    Change of Rights Agent                                  28

Section 22.    Issuance of New Right Certificates                      29

Section 23.    Redemption                                              30

Section 24.    Exchange                                                30

Section 25.    Notice of Certain Events                                32

Section 26.    Notices                                                 33

Section 27.    Supplements and Amendments                              34

Section 28.    Successors                                              34

Section 29.    Benefits of this Agreement                              34

Section 30.    Severability                                            34

Section 31.    Governing Law                                           35

Section 32.    Counterparts                                            35

Section 33.    Descriptive Headings                                    35

Signatures                                                             35

Exhibit A -    Form of Certificate of Designations of First Bank System, Inc.

Exhibit B -    Form of Right Certificate

Exhibit C -    Summary of Rights to Purchase Preferred Shares

<PAGE>

                             RIGHTS AGREEMENT

          Agreement, dated as of December 21, 1988, between First Bank
System, Inc., a Delaware corporation (the "Company"), and Morgan Shareholder
Services Trust Company (the "Rights Agent").

          The Board of Directors of the Company has authorized and declared a
dividend of one preferred share purchase right (a "Right") for each Common
Share (as hereinafter defined) of the Company outstanding on January 4, 1989
(the "Record Date"), each Right representing the right to purchase one
one-hundredth of a Preferred Share (as hereinafter defined), upon the terms
and subject to the conditions herein set forth, and has further authorized
and directed the issuance of one Right with respect to each Common Share that
shall become outstanding between the Record Date and the earliest of the
Distribution Date, the Redemption Date, the Exchange Date and the Final
Expiration Date (as such terms are hereinafter defined).

          Accordingly, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

          Section 1.   CERTAIN DEFINITIONS.  For purposes of this Agreement,
the following terms have the meanings indicated:

          (a)  "Acquiring Person" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates and
Associates (as such terms are hereinafter defined) of such Person, shall be
the Beneficial Owner (as such term is hereinafter defined) of 20% or more of
the Common Shares of the Company then outstanding, but shall not include the
Company, any Subsidiary (as such term is hereinafter defined) of the Company,
any employee benefit plan of the Company or any Subsidiary of the Company, or
any entity holding Common Shares for or pursuant to the terms of any such
plan.  Notwithstanding the foregoing, no Person shall become an "Acquiring
Person" as the result of an acquisition of Common Shares by the Company
which, by reducing the number of shares outstanding, increases the
proportionate number of shares beneficially owned by such Person to 20% or
more of the Common Shares of the Company then outstanding; PROVIDED, HOWEVER,
that if a Person shall become the Beneficial Owner of 20% or more of the
Common Shares of the Company then outstanding by reason of share purchases by
the Company and shall, after such share purchases by the Company, become the
Beneficial Owner of any additional Common Shares of the Company, then such
Person shall be deemed to be an "Acquiring Person."

          (b)  "Affiliate" and "Associate" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations
under the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
as in effect on the date of this Agreement.

<PAGE>


          (c)  A Person shall be deemed the Beneficial Owner" of and shall be
deemed to beneficially own" any securities:

          (i)   which such Person or any of such Person's Affiliates or
     Associates beneficially owns, directly or indirectly;

          (ii)  which such Person or any of such Person's Affiliates or
     Associates has (A) the right to acquire (whether such right is exercisable
     immediately or only after the passage of time) pursuant to any agreement,
     arrangement or understanding (other than customary agreements with and
     between underwriters and selling group members with respect to a bona fide
     public offering of securities), or upon the exercise of conversion rights,
     exchange rights, rights (other than these Rights), warrants or options, or
     otherwise; PROVIDED, HOWEVER, that a Person shall not be deemed the
     Beneficial Owner of, or to beneficially own, securities tendered pursuant
     to a tender or exchange offer made by or on behalf of such Person or any
     of such Person's Affiliates or Associates until such tendered securities
     are accepted for purchase or exchange; or (B) the right to vote pursuant
     to any agreement, arrangement or understanding; PROVIDED, HOWEVER, that a
     Person shall not be deemed the Beneficial Owner of, or to beneficially
     own, any security if the agreement, arrangement or understanding to vote
     such security (1) arises solely from a revocable proxy or consent given
     to such Person in response to a public proxy or consent solicitation
     made pursuant to, and in accordance with, the applicable rules and
     regulations promulgated under the Exchange Act and (2) is not also
     then reportable on Schedule 13D under the Exchange Act (or any comparable
     or successor report); or

          (iii) which are beneficially owned, directly or indirectly, by any
     other Person with which such Person or any of such Person's Affiliates or
     Associates has any agreement, arrangement or understanding (other than
     customary agreements with and between underwriters and selling group
     members with respect to a bona fide public offering of securities) for the
     purpose of acquiring, holding, voting (except to the extent contemplated by
     the proviso to Section l(c)(ii)(B)) or disposing of any securities of the
     Company.

          Notwithstanding anything in this definition of Beneficial Ownership
to the contrary, the phrase "then outstanding," when used with reference to a
Person's Beneficial Ownership of securities of the Company, shall mean the
number of such securities then issued and outstanding together with the
number of such securities not then actually issued and outstanding which such
Person would be deemed to own beneficially hereunder.

          (d)  "Business Day" shall mean any day other than a Saturday, a
Sunday, or a day on which banking institutions in the State of New York are
authorized or obligated by law or executive order to close.

<PAGE>


          (e)  "Close of business" on any given date shall mean 5:00 P.M.,
New York City time, on such date; PROVIDED, HOWEVER, that if such date is not
a Business Day, it shall mean 5:00 P.M., New York City time, on the next
succeeding Business Day.

          (f)  "Common Shares" when used with reference to the Company shall
mean the shares of Common Stock, par value $1.25 per share, of the Company.
"Common Shares" when used with reference to any Person other than the Company
shall mean the capital stock (or equity interest) with the greatest voting
power of such other Person or, if such other Person is a Subsidiary of
another Person, the Person or Persons which ultimately control such
first-mentioned Person.

          (g)  "Distribution Date" shall have the meaning set forth in
Section 3 hereof.

          (h)  "Exchange Date" shall have the meaning set forth in Section 7
hereof.

          (i)  "Final Expiration Date" shall have the meaning set forth in
Section 7 hereof.

          (j)  "Person" shall mean any individual, firm, corporation or other
entity, and shall include any successor (by merger or otherwise) of such
entity.

          (k)  "Preferred Shares" shall mean shares of Series A Junior
Participating Preferred Stock, par value $1.00, of the Company having the
rights and preferences set forth in the Form of Certificate of Designations
attached to this Agreement as Exhibit A.

          (l)  "Redemption Date" shall have the meaning set forth in Section
7 hereof.

          (m)  "Subsidiary" of any Person shall mean any corporation or other
entity of which a majority of the voting power of the voting equity
securities or equity interest is owned, directly or indirectly, by such
Person.

          Section 2.  APPOINTMENT OF RIGHTS AGENT.  The Company hereby
appoints the Rights Agent to act as agent for the Company and the holders of
the Rights (who, in accordance with Section 3 hereof, shall prior to the
Distribution Date also be the holders of the Common Shares) in accordance
with the terms and conditions hereof, and the Rights Agent hereby accepts
such appointment.  The Company may from time to time appoint such  co-Rights
Agents as it may deem necessary or desirable.

<PAGE>

          Section 3.  ISSUE OF RIGHT CERTIFICATES.

          (a)  Until the earlier of (i) the tenth day after the date of the
first public announcement by the Company or an Acquiring Person that an
Acquiring Person has become such or (ii) the tenth day (or such later date as
may be determined by action of the Board of Directors prior to such time as
any Person becomes an Acquiring Person) after the date of the commencement by
any Person (other than the Company, any Subsidiary of the Company, any
employee benefit plan of the Company or of any Subsidiary of the Company or
any entity holding Common Shares for or pursuant to the terms of any such
plan) of, or of the first public announcement of the intention of any Person
(other than the Company, any Subsidiary of the Company, any employee benefit
plan of the Company or of any Subsidiary of the Company or any entity holding
Common Shares for or pursuant to the terms of any such plan) to commence, a
tender or exchange offer the consummation of which would result in any Person
becoming the Beneficial Owner of Common Shares aggregating 20% or more of the
then outstanding Common Shares (including any such date which is after the
date of this Agreement and prior to the issuance of the Rights; the earlier
of such dates being herein referred to as the Distribution Date"), (x) the
Rights will be evidenced (subject to the provisions of Section 3(b) hereof)
by the certificates for Common Shares registered in the names of the holders
thereof (which certificates shall also be deemed to be Right Certificates)
and not by separate Right Certificates, and (y) the right to receive Right
Certificates will be transferable only in connection with the transfer of
Common Shares.  As soon as practicable after the Distribution Date, the
Company will prepare and execute, the Rights Agent will countersign, and the
Company will send or cause to be sent (and the Rights Agent will, if
requested, send) by first-class, insured, postage-prepaid mail, to each
record holder of Common Shares as of the close of business on the
Distribution Date, at the address of such holder shown on the records of the
Company, a Right Certificate, in substantially the form of Exhibit B hereto
(a "Right Certificate"), evidencing one Right for each Common Share so held.
As of the Distribution Date, the Rights will be evidenced solely by such
Right Certificates.

          (b)  On the Record Date, or as soon as practicable thereafter, the
Company will send a copy of a Summary of Rights to Purchase Preferred Shares,
in substantially the form of Exhibit C hereto (the "Summary of Rights"), by
first-class, postage-prepaid mail, to each record holder of Common Shares as
of the close of business on the Record Date, at the address of such holder
shown on the records of the Company.  With respect to certificates for Common
Shares outstanding as of the Record Date, until the Distribution Date, the
Rights will be evidenced by such certificates registered in the names of the
holders thereof together with a copy of the Summary of Rights.  Until the
Distribution Date (or the earlier of the Redemption Date, the Exchange Date
or the Final Expiration Date if occurring prior to the Distribution Date),
the surrender for transfer of any certificate for Common Shares outstanding
on the Record Date, with or without a copy of the Summary of Rights attached
thereto, shall also constitute the transfer of the Rights associated with the
Common Shares represented thereby.

<PAGE>


          (c)  Certificates for Common Shares which become outstanding
(including, without limitation, reacquired Common Shares referred to in the
last sentence of this paragraph (c)) after the Record Date but prior to the
earliest of the Distribution Date, the Redemption Date, the Exchange Date or
the Final Expiration Date shall have impressed on, printed on, written on or
otherwise affixed to them the following legend:

          This certificate also evidences and entitles the holder hereof
          to certain rights as set forth in a Rights Agreement between
          First Bank System, Inc. and Morgan Shareholder Services
          Trust Company, dated as of December 21, 1988 (the "Rights
          Agreement"), the terms of which are hereby incorporated
          herein by reference and a copy of which is on file at the
          principal executive offices of First Bank System, Inc.  Under
          certain circumstances, as set forth in the Rights Agreement,
          such Rights will be evidenced by separate certificates and
          will no longer be evidenced by this certificate.  First Bank
          System, Inc. will mail to the holder of this certificate a copy
          of the Rights Agreement without charge after receipt of a
          written request therefor.  Under certain circumstances, as set
          forth in the Rights Agreement, Rights issued to any Person
          who becomes an Acquiring Person (as defined in the Rights
          Agreement) may become null and void.

With respect to such certificates containing the foregoing legend, until the
Distribution Date, the Rights associated with the Common Shares represented
by such certificates shall be evidenced by such certificates alone, and the
surrender for transfer of any such certificate shall also constitute the
transfer of the Rights associated with the Common Shares represented thereby.
In the event that the Company purchases or acquires any Common Shares after
the Record Date but prior to the Distribution Date, any Rights associated
with such Common Shares shall be deemed cancelled and retired so that the
Company shall not be entitled to exercise any Rights associated with the
Common Shares which are no longer outstanding.

          Section 4.   FORM OF RIGHT CERTIFICATES.  The Right Certificates
(and the forms of election to purchase Preferred Shares and of assignment to
be printed on the reverse thereof) shall be substantially the same as Exhibit
B hereto and may have such marks of identification or designation and such
legends, summaries or endorsements printed thereon as the Company may deem
appropriate and as are not inconsistent with the provisions of this
Agreement, or as may be required to comply with any applicable law or with
any rule or regulation made pursuant thereto or with any rule or regulation
of any stock exchange on which the Rights may from time to time be listed, or
to conform to usage.  Subject to the provisions of Section 22 hereof, the
Right Certificates shall entitle the holders thereof to purchase


<PAGE>

such number of one one-hundredths of a Preferred Share as shall be set forth
therein at the price per one one-hundredth of a Preferred Share set forth
therein (the "Purchase Price"), but the number of such one one-hundredths of
a Preferred Share and the Purchase Price shall be subject to adjustment as
provided herein.

          Section 5.  COUNTERSIGNATURE AND REGISTRATION.  The Right
Certificates shall be executed on behalf of the Company by its Chairman, any
of its Vice Chairmen, its President, any of its Vice Presidents, its
Treasurer or its Controller either manually or by facsimile signature, shall
have affixed thereto the Company's seal or a facsimile thereof, and shall be
attested by the Secretary or an Assistant Secretary of the Company, either
manually or by facsimile signature. The Right Certificates shall be manually
countersigned by the Rights Agent for purposes of authorization only and
shall not be valid for any purpose unless countersigned.  In case any officer
of the Company who shall have signed any of the Right Certificates shall
cease to be such officer of the Company before countersignature by the Rights
Agent and issuance and delivery by the Company, such Right Certificates,
nevertheless, may be countersigned by the Rights Agent and issued and
delivered by the Company with the same force and effect as though the person
who signed such Right Certificates had not ceased to be such officer of the
Company; and any Right Certificate may be signed on behalf of the Company by
any person who, at the actual date of the execution of such Right
Certificate, shall be a proper officer of the Company to sign such Right
Certificate, although at the date of the execution of this Rights Agreement
any such person was not such an officer.

          Following the Distribution Date, the Rights Agent will keep or
cause to be kept, at its principal office, books for registration and
transfer of the Right Certificates issued hereunder. Such books shall show the
names and addresses of the respective holders of the Right Certificates, the
number of Rights evidenced on its face by each of the Right Certificates and
the date of each of the Right Certificates.

          Section 6.  TRANSFER, SPLIT UP, COMBINATION AND EXCHANQE OF RIGHT
CERTIFICATES; MUTILATED, DESTROYED, LOST OR STOLEN RIGHT CERTIFICATES.
Subject to the provisions of Section 14 hereof, at any time after the close
of business on the Distribution Date, and at or prior to the close of
business on the earlier of the Redemption Date, the Exchange Date or the
Final Expiration Date, any Right Certificate or Right Certificates (other
than Right Certificates representing Rights that have become void pursuant to
Section ll(a)(ii) hereof) may be transferred, split up, combined or exchanged
for another Right Certificate or Right Certificates, entitling the registered
holder to purchase a like number of one one-hundredths of a Preferred Share
as the Right Certificate or Right Certificates surrendered then entitled such
holder to purchase. Any registered holder desiring to transfer, split up,
combine or exchange any Right Certificate or Right Certificates shall make
such request in writing delivered to the Rights Agent, and shall surrender
the Right Certificate or Right Certificates to be transferred, split up,
combined or exchanged at the principal office of the Rights Agent. Thereupon
the Rights Agent shall countersign and deliver to the person entitled thereto
a Right Certificate or Right

<PAGE>

Certificates, as the case may be, as so requested. The Company may require
payment of a sum sufficient to cover any tax or governmental charge that may
be imposed in connection with any transfer, split up, combination or exchange
of Right Certificates.

          Upon receipt by the Company and the Rights Agent of evidence
reasonably satisfactory to them of the loss, theft, destruction or mutilation
of a Right Certificate, and, in case of loss, theft or destruction, of
indemnity or security reasonably satisfactory to them, and, at the Company's
request, reimbursement to the Company and the Rights Agent of all reasonable
expenses incidental thereto, and upon surrender to the Rights Agent and
cancellation of the Right Certificate if mutilated, the Company will issue,
execute and deliver a new Right Certificate of like tenor to the Rights Agent
for countersignature and delivery to the registered holder in lieu of the
Right Certificate so lost, stolen, destroyed or mutilated.

          Section 7.  EXERCISE OF RIGHTS; PURCHASE PRICE; EXPIRATION DATE OF
RIGHTS.

          (a)  The registered holder of any Right Certificate may exercise
the Rights evidenced thereby (except as otherwise provided herein) in whole
or in part at any time after the Distribution Date upon surrender of the
Right Certificate, with the form of election to purchase on the reverse side
thereof duly executed, to the Rights Agent at the principal office of the
Rights Agent, together with payment of the Purchase Price for each one
one-hundredth of a Preferred Share (or such other number of Preferred Shares,
Common Shares or equivalent preferred shares as shall then be issuable upon
exercise of such Right as provided in Sections 11 and 13 hereof) as to which
the Rights are exercised, at or prior to the earliest of (i) the close of
business on January 4, 1999 (the "Final Expiration Date"), (ii) the time at
which the Rights are redeemed as provided in Section 23 hereof (the
"Redemption Date"), or (iii) the time at which such Rights are exchanged as
provided in Section 24 hereof (the "Exchange Date").

          (b)  The Purchase Price for each one one-hundredth of a Preferred
Share (or such other number of Preferred Shares, Common Shares or equivalent
preferred shares as shall be issuable upon exercise of such Right as provided
in Sections 11 and 13 hereof) pursuant to the exercise of a Right shall
initially be $80.00, shall be subject to adjustment from time to time as
provided in Sections 11 and 13 hereof and shall be payable in lawful money of
the United States of America in accordance with paragraph (c) below.

          (c)  Upon receipt of a Right Certificate representing exercisable
Rights, with the form of election to purchase duly executed, accompanied by
payment of the Purchase Price for the shares to be purchased and an amount
equal to any applicable transfer tax required to be paid by the holder of
such Right Certificate in accordance with Section 9 hereof by certified
check, cashier's check or money order payable to the order of the Company,
the Rights Agent shall

<PAGE>

thereupon promptly (i) (A) requisition from any transfer agent for the
Preferred Shares (or such other number of Preferred Shares, Common Shares or
equivalent preferred shares as shall be issuable upon exercise of such Right
as provided in Sections 11 and 13 hereof) certificates for the number of
Preferred Shares (or such other number of Preferred Shares, Common Shares or
equivalent preferred shares as shall be issuable upon exercise of such Right
as provided in Sections 11 and 13 hereof) to be purchased and the Company
hereby irrevocably authorizes its transfer agent to comply with all such
requests, or (B) requisition from the Company or the depositary agent, as the
case may be, scrip or depositary receipts representing such number of one
one-hundredths of a Preferred Share as are to be purchased (and, in the case
of depositary receipts, the Company shall cause certificates for the
Preferred Shares represented by such receipts to be deposited by the transfer
agent with the depositary agent) and the Company hereby directs the
depositary agent to comply with such request, (ii) when appropriate,
requisition from the Company the amount of cash to be paid in lieu of
issuance of fractional shares in accordance with Section 14 hereof, (iii)
after receipt of such certificates, scrip or depositary receipts, cause the
same to be delivered to or upon the order of the registered holder of such
Right Certificate, registered in such name or names as may be designated by
such holder and (iv) when appropriate, after receipt, deliver such cash to or
upon the order of the registered holder of such Right Certificate.

          (d)  In case the registered holder of any Right Certificate shall
exercise less than all of the Rights evidenced thereby, a new Right
Certificate evidencing Rights equivalent to the Rights remaining unexercised
shall be issued by the Rights Agent to the registered holder of such Right
Certificate or to his duly authorized assigns, subject to the provisions of
Section 14 hereof.

          (e)  The Company covenants and agrees that it will cause to be
reserved and kept available out of its authorized and unissued Preferred
Shares or any Preferred Shares held in its treasury, the number of Preferred
Shares that will be sufficient to permit the exercise in full of all
outstanding Rights in accordance with this Section 7.

          Section 8.  CANCELLATION AND DESTRUCTION OF RIGHT CERTIFICATES.
All Right Certificates surrendered for the purpose of exercise, transfer,
split up, combination or exchange shall, if surrendered to the Company or to
any of its agents, be delivered to the Rights Agent for cancellation or in
cancelled form, or, if surrendered to the Rights Agent, shall be cancelled by
it, and no Right Certificates shall be issued in lieu thereof except as
expressly permitted by any of the provisions of this Rights Agreement.  The
Company shall deliver to the Rights Agent for cancellation and retirement,
and the Rights Agent shall so cancel and retire, any other Right Certificate
purchased or acquired by the Company otherwise than upon the exercise
thereof.  The Rights Agent shall deliver all cancelled Right Certificates to
the Company, or shall, at the written request of the Company, destroy such
cancelled Right Certificates, and in such case shall deliver a certificate of
destruction thereof to the Company.


<PAGE>

          Section 9.  AVAILABILITY OF PREFERRED SHARES.  The Company
covenants and agrees that it will take all such action as may be necessary to
ensure that all Preferred Shares (or Common Shares or equivalent preferred
shares, if applicable) delivered upon exercise of Rights shall, at the time
of delivery of the certificates therefor (subject to payment of the Purchase
Price), be duly and validly authorized and issued and fully paid and
nonassessable shares.

          The Company further covenants and agrees that it will pay when due
and payable any and all federal and state transfer taxes and charges which
may be payable in respect of the issuance or delivery of the Right
Certificates or of any Preferred Shares (or Common Shares or equivalent
preferred shares, if applicable) upon the exercise of Rights.  The Company
shall not, however, be required to pay any transfer tax which may be payable
in respect of any transfer or delivery of Right Certificates to a person
other than, or the issuance or delivery of certificates, scrip or depositary
receipts for the Preferred Shares (or Common Shares or equivalent preferred
shares, if applicable) in a name other than that of, the registered holder of
the Right Certificate evidencing Rights surrendered for exercise or to issue
or to deliver any certificates, scrip or depositary receipts for Preferred
Shares (or Common Shares or equivalent preferred shares, if applicable) upon
the exercise of any Rights until any such tax shall have been paid (any such
tax being payable by the holder of such Right Certificate at the time of
surrender) or until it has been established to the Company's reasonable
satisfaction that no such tax is due.

          Section 10.  PREFERRED SHARES RECORD DATE.  Each person in whose
name any certificate for Preferred Shares (or Common Shares or equivalent
preferred shares, if applicable) is issued upon the exercise of Rights shall
for all purposes be deemed to have become the holder of record of the
Preferred Shares (or Common Shares or equivalent preferred shares, if
applicable) represented thereby on, and such certificate shall be dated, the
date upon which the Right Certificate evidencing such Rights was duly
surrendered and payment of the Purchase Price (and any applicable transfer
taxes) was made; PROVIDED, HOWEVER, that if the date of such surrender and
payment is a date upon which the transfer books of the Company for the
Preferred Shares (or Common Shares or equivalent preferred shares, if
applicable) are closed, such person shall be deemed to have become the record
holder of such shares on, and such certificate shall be dated, the next
succeeding Business Day on which such transfer books are open. Prior to the
exercise of the Rights evidenced thereby, the holder of a Right Certificate
shall not be entitled to any rights of a holder of Preferred Shares (or
Common Shares or equivalent preferred shares, if applicable) for which the
Rights shall be exercisable, including, without limitation, the right to
vote, to receive dividends or other distributions or to exercise any
preemptive rights, and shall not be entitled to receive any notice of any
proceedings of the Company, except as provided herein.

          Section 11.  ADJUSTMENT OF PURCHASE PRICE, NUMBER OF SHARES OR
NUMBER OF RIGHTS.  The Purchase Price, the number and kind of shares covered by

<PAGE>

each Right and the number of Rights outstanding are subject to adjustment
from time to time as provided in this Section 11.

               (a)  (i) In the event the Company shall at any time after the
          date of this Agreement (A) declare a dividend on the Preferred Shares
          payable in Preferred Shares, (B) subdivide the outstanding Preferred
          Shares, (C) combine the outstanding Preferred Shares into a smaller
          number of Preferred Shares or (D) issue any shares of its capital
          stock in a reclassification of the Preferred Shares (including any
          such reclassification in connection with a consolidation or merger
          in which the Company is the continuing or surviving corporation),
          except as otherwise provided in this Section 11(a), the Purchase
          Price in effect at the time of the record date for such dividend or
          of the effective date of such subdivision, combination or
          reclassification, and the number and kind of shares of capital stock
          issuable on such date, shall be proportionately adjusted so that the
          holder of any Right exercised after such time shall be entitled to
          receive the aggregate number and kind of shares of capital stock
          which, if such Right had been exercised immediately prior to such
          date and at a time when the Preferred Shares transfer books of the
          Company were open, he would have owned upon such exercise and been
          entitled to receive by virtue of such dividend, subdivision,
          combination or reclassification; PROVIDED, HOWEVER, that in no event
          shall the consideration to be paid upon the exercise of one Right be
          less than the aggregate par value of the shares of capital stock of
          the Company issuable upon exercise of one Right.

               (ii)  Subject to Section 24 of this Agreement, in the event that
          any Person shall become an Acquiring Person, each Right shall
          thereafter entitle the holder to receive, upon exercise thereof at a
          price equal to the then current Purchase Price multiplied by the then
          current number of one one-hundredths of a Preferred Share purchaseable
          upon exercise of such Right, in accordance with the terms of this
          Agreement and in lieu of Preferred Shares, such number of Common
          Shares of the Company as shall equal the result obtained by
          (x) multiplying the then current Purchase Price by the number of one
          one-hundredths of a Preferred Share purchaseable upon exercise of such
          Right and dividing that product by (y) 50% of the then current per
          share market price of the Company's Common Shares (determined
          pursuant to Section 11(d) hereof) on the date such Person became an
          Acquiring Person.  In the event that any Person shall become an
          Acquiring Person and the Rights shall then be outstanding, the
          Company shall not take any action which would eliminate or diminish
          the benefits intended to be afforded by the Rights.

               From and after the time any Person becomes an Acquiring Person,
          any Rights that are or were acquired or beneficially owned by

<PAGE>

          such Acquiring Person (or any Associate or Affiliate of such Acquiring
          Person) shall be void and any holder of such Rights shall thereafter
          have no right to exercise such Rights under any provision of this
          Agreement.  No Right Certificate shall be issued pursuant to
          Section 3 that represents Rights beneficially owned by an Acquiring
          Person (or any Associate or Affiliate thereof) whose Rights would be
          void pursuant to the preceding sentence; no Right Certificate shall
          be issued at any time upon the transfer of any Rights to an
          Acquiring Person (or any Associate or Affiliate thereof) whose Rights
          would be void pursuant to the preceding sentence or to any nominee of
          such Acquiring Person (or Associate or Affiliate); and any Right
          Certificate delivered to the Rights Agent for transfer to an Acquiring
          Person (or any Associate or Affiliate thereof) whose Rights would be
          void pursuant to the preceding sentence shall be cancelled.

               (iii)  In the event the Company is required to issue any Common
          Shares pursuant to subparagraph (ii) of this paragraph (a), the
          Company may, at its option, substitute Preferred Shares (or
          equivalent preferred shares, as such term is defined in
          Section 11(b) hereof) for Common Shares so issuable, at the initial
          rate of one one-hundredth of a Preferred Share (or equivalent
          preferred share) for each Common Share, as appropriately adjusted to
          reflect adjustments in the voting rights of the Preferred Shares
          pursuant to the terms thereof, so that the product of (A) the fraction
          of a Preferred Share or equivalent preferred share delivered in lieu
          of each Common Share multiplied by (B) the number of votes to which
          a whole Preferred Share or equivalent preferred share is then entitled
          shall equal the number of votes to which one Common Share is then
          entitled.

               (iv)    In the event that there shall not be sufficient Common
           Shares (or, if the Company has elected to make a substitution as
           provided in subparagraph (iii) of this paragraph (a), Preferred
           Shares or equivalent preferred shares of the Company) issued but not
           outstanding or authorized but unissued to permit the exercise in
           full of the Rights in accordance with subparagraph (ii) (and
           subparagraph (iii), if applicable) of this paragraph (a), the Company
           shall (A) determine the excess of (1) the value of the Common Shares
           (or Preferred Shares or equivalent preferred shares) issuable upon
           the exercise of a Right (the "Current Value") over (2) the Purchase
           Price (such excess, the "Spread"), and (B) with respect to each
           Right, make adequate provision to substitute for the Common Shares
           (or Preferred Shares or equivalent preferred shares), upon payment
           of the applicable Purchase Price, (1) cash, (2) a reduction in
           the Purchase Price, (3) other equity securities of the Company,
           (4) debt securities of the Company, (5) other assets, or (6) any
           combination of the foregoing, having an aggregate value equal
           to the Current Value, where such aggregate value has been


<PAGE>

          determined by the Board of Directors of the Company based upon the
          advice of one or more investment or financial advisors selected by
          the Board of Directors of the Company; PROVIDED, however, if the
          Company shall not have made adequate provision to deliver value
          pursuant to clause (B) above within 30 days following the first
          date on which any Person became an Acquiring Person, then the
          Company shall be obligated to deliver, upon the surrender for
          exercise of a Right and without requiring payment of the Purchase
          Price, Common Shares (or Preferred Shares or equivalent preferred
          shares), to the extent available, and then, if necessary, cash,
          which shares and/or cash have an aggregate value equal to the Spread.
          If the Board of Directors of the Company shall determine in good faith
          that it is likely that sufficient additional Common Shares (or
          Preferred Shares or equivalent preferred shares) could be authorized
          for issuance upon exercise in full of the Rights, the 30-day period
          set forth above may be extended to the extent necessary, but not
          more than 90 days after the first date on which any Person became
          an Acquiring Person, in order that the Company may seek
          shareholder approval for the authorization of such additional shares
          (such period, as it may be extended, the "Substitution Period").  To
          the extent that the Company determines that some action need be taken
          pursuant to the first and/or second sentences of this subparagraph
          (iv), the Company (x) shall provide, subject to the second paragraph
          of subparagraph (ii) of this paragraph (a), that such action shall
          apply uniformly to all outstanding Rights, and (y) may suspend the
          exercisability of the Rights until the expiration of the Substitution
          Period in order to seek any authorization of additional shares and/or
          to decide the appropriate form of distribution to be made pursuant to
          such first sentence and to determine the value thereof.  In the event
          of any such suspension, the Company shall issue a public announcement
          stating that the exercisability of the Rights has been temporarily
          suspended, as well as a public announcement at such time as the
          suspension is no longer in effect.  For purposes of this subparagraph
          (iv), the value of a Common Share (or Preferred Share or equivalent
          preferred share) shall be the current market price (as determined
          pursuant to Section 11(d) hereof) per Common Share on the first date
          on which any Person became an Acquiring Person.

          (b)  In case the Company shall fix a record date for the issuance
of rights, options or warrants to all holders of Preferred Shares entitling
them (for a period expiring within 45 calendar days after such record date)
to subscribe for or purchase Preferred Shares (or shares having the same
rights, privileges and preferences as the Preferred Shares ("equivalent
preferred shares")) or securities convertible into Preferred Shares or
equivalent preferred shares at a price per Preferred Share or equivalent
preferred share (or having a conversion price per share, if a security
convertible into Preferred Shares or equivalent preferred shares) less than
the then current per share market price of the Preferred Shares (as defined

<PAGE>

in Section 11(d)) on such record date, the Purchase Price to be in effect
after such record date shall be determined by multiplying the Purchase Price
in effect immediately prior to such record date by a fraction, the numerator
of which shall be the number of Preferred Shares outstanding on such record
date plus the number of Preferred Shares which the aggregate offering price
of the total number of Preferred Shares and/or equivalent preferred shares so
to be offered (and/or the aggregate initial conversion price of the
convertible securities so to be offered) would purchase at such current
market price and the denominator of which shall be the number of Preferred
Shares outstanding on such record date plus the number of additional
Preferred Shares and/or equivalent preferred shares to be offered for
subscription or purchase (or into which the convertible securities so to be
offered are initially convertible); PROVIDED, HOWEVER, that in no event shall
the consideration to be paid upon the exercise of one Right be less than the
aggregate par value of the shares of capital stock of the Company issuable
upon exercise of one Right.  In case such subscription price may be paid in a
consideration part or all of which shall be in a form other than cash, the
value of such consideration shall be as determined in good faith by the Board
of Directors of the Company, whose determination shall be described in a
statement filed with the Rights Agent.  Preferred Shares owned by or held for
the account of the Company shall not be deemed outstanding for the purpose of
any such computation.  Such adjustment shall be made successively whenever
such a record date is fixed; and in the event that such rights, options or
warrants are not so issued, the Purchase Price shall be adjusted to be the
Purchase Price which would then be in effect if such record date had not been
fixed.

          (c)  In case the Company shall fix a record date for the making of
a distribution to all holders of the Preferred Shares (including any such
distribution made in connection with a consolidation or merger in which the
Company is the continuing or surviving corporation) of evidences of
indebtedness or assets (other than a regular quarterly cash dividend or a
dividend payable in Preferred Shares) or subscription rights or warrants
(excluding those referred to in Section 11(b) hereof), the Purchase Price to
be in effect after such record date shall be determined by multiplying the
Purchase Price in effect immediately prior to such record date by a fraction,
the numerator of which shall be the then current per share market price of
the Preferred Shares on such record date, less the fair market value (as
determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent)
of the portion of the assets or evidences of indebtedness so to be
distributed or of such subscription rights or warrants applicable to one
Preferred Share and the denominator of which shall be such current per share
market price of the Preferred Shares; PROVIDED, HOWEVER, that in no event
shall the consideration to be paid upon the exercise of one Right be less
than the aggregate par value of the shares of capital stock of the Company to
be issued upon exercise of one Right.  Such adjustments shall be made
successively whenever such a record date is fixed; and in the event that such
distribution is not so made, the Purchase Price shall again be adjusted to be
the Purchase Price which would then be in effect if such record date had not
been fixed.


<PAGE>

             (d)  (i) For the purpose of any computation hereunder, the
        "current per share market price" of any security (a "Security" for the
        purpose of this Section 11(d)(i)) on any date shall be deemed to be the
        average of the daily closing prices per share of such Security for the
        30 consecutive Trading Days (as such term is hereinafter defined)
        immediately prior to such date; PROVIDED, HOWEVER, that in the event
        that the current per share market price of the Security is determined
        during a period following the announcement by the issuer of such
        Security of (A) a dividend or distribution on such Security payable in
        shares of such Security or securities convertible into such shares, or
        (B) any subdivision, combination or reclassification of such Security
        and prior to the expiration of 30 Trading Days after the ex-dividend
        date for such dividend or distribution, or the record date for such
        subdivision, combination or reclassification, then, and in each such
        case, the current per share market price shall be appropriately
        adjusted to reflect the current market price per share equivalent of
        such Security.  The closing price for each day shall be the last sale
        price, regular way, or, in case no such sale takes place on such day,
        the average of the closing bid and asked prices, regular way, in
        either case as reported in the principal consolidated transaction
        reporting system with respect to securities listed or admitted to
        trading on the New York Stock Exchange or, if the Security is not listed
        or admitted to trading on the New York Stock Exchange, as reported in
        the principal consolidated transaction reporting system with respect to
        securities listed on the principal national securities exchange on
        which the Security is listed or admitted to trading or, if the Security
        is not listed or admitted to trading on any national securities
        exchange, the last quoted price or, if not so quoted, the average of the
        high bid and low asked prices in the over-the-counter market, as
        reported by the National Association of Securities Dealers, Inc.
        Automated Quotations System ("NASDAQ") or such other system then in
        use, or, if on any such date the Security is not quoted by any such
        organization, the average of the closing bid and asked prices as
        furnished by a professional market maker making a market in the Security
        selected by the Board of Directors of the Company.  The term "Trading
        Day" shall mean a day on which the principal national securities
        exchange on which the Security is listed or admitted to trading is
        open for the transaction of business or, if the Security is not listed
        or admitted to trading on any national securities exchange, a Business
        Day.

             (ii)  For the purpose of any computation hereunder, the "current
        per share market price" of the Preferred Shares shall be determined in
        accordance with the method set forth in Section 11(d)(i).  If the
        Preferred Shares are not publicly traded, the "current per share
        market price" of the Preferred Shares shall be conclusively deemed to
        be the current per share market price of the Common Shares as

<PAGE>


         determined pursuant to Section 11(d)(i) (appropriately adjusted to
         reflect any stock split, stock dividend or similar transaction
         occurring after the date hereof), multiplied by one hundred.  If
         neither the Common Shares nor the Preferred Shares are publicly
         held or so listed or traded, "current per share market price" shall
         mean the fair value per share as determined in good faith by the Board
         of Directors of the Company, whose determination shall be described in
         a statement filed with the Rights Agent.

          (e)  No adjustment in the Purchase Price shall be required unless
such adjustment would require an increase or decrease of at least 1% in the
Purchase Price; PROVIDED, HOWEVER, that any adjustments which by reason of
this Section 11(e) are not required to be made shall be carried forward and
taken into account in any subsequent adjustment.  All calculations under this
Section 11 shall be made to the nearest cent or to the nearest one
one-millionth of a Preferred Share or one ten-thousandth of any other share
or security as the case may be.  Notwithstanding the first sentence of this
Section 11(e), any adjustment required by this Section 11 shall be made no
later than the earlier of (i) three years from the date of the transaction
which requires such adjustment or (ii) the date of the expiration of the
right to exercise any Rights.

          (f)  If as a result of an adjustment made pursuant to Section 11(a)
hereof, the holder of any Right thereafter exercised shall become entitled to
receive any shares of capital stock of the Company other than Preferred
Shares, thereafter the number of such other shares so receivable upon
exercise of any Right shall be subject to adjustment from time to time in a
manner and on terms as nearly equivalent as practicable to the provisions
with respect to the Preferred Shares contained in Section 11(a) through (c),
inclusive, and the provisions of Sections 7, 9, 10 and 13 with respect to the
Preferred Shares shall apply on like terms to any such other shares.

          (g)  All Rights originally issued by the Company subsequent to any
adjustment made to the Purchase Price hereunder shall evidence the right to
purchase, at the adjusted Purchase Price, the number of one one-hundredths of
a Preferred Share purchasable from time to time hereunder upon exercise of
the Rights, all subject to further adjustment as provided herein.

          (h)  Unless the Company shall have exercised its election as
provided in Section 11(i), subject to the provisions of Sections 11(a) and 13
hereof, upon each adjustment of the Purchase Price as a result of the
calculations made in Sections 11(b) and (c), each Right outstanding
immediately prior to the making of such adjustment shall thereafter evidence
the right to purchase, at the adjusted Purchase Price, that number of one
one-hundredths of a Preferred Share (calculated to the nearest one
one-millionth of a Preferred Share) obtained by (i) multiplying (x) the
number of one one-hundredths of a share covered by a Right immediately prior
to this adjustment by (y) the Purchase Price in effect immediately prior to
such

<PAGE>


adjustment of the Purchase Price and (ii) dividing the product so obtained by
the Purchase Price in effect immediately after such adjustment of the
Purchase Price.

          (i)  The Company may elect on or after the date of any adjustment
of the Purchase Price to adjust the number of Rights, in substitution for any
adjustment in the number of one one-hundredths of a Preferred Share
purchasable upon the exercise of a Right.  Each of the Rights outstanding
after such adjustment of the number of Rights shall be exercisable for the
number of one one-hundredths of a Preferred Share for which a Right was
exercisable immediately prior to such adjustment.  Each Right held of record
prior to such adjustment of the number of Rights shall become that number of
Rights (calculated to the nearest one ten-thousandth) obtained by dividing
the Purchase Price in effect immediately prior to adjustment of the Purchase
Price by the Purchase Price in effect immediately after adjustment of the
Purchase Price.  The Company shall make a public announcement of its election
to adjust the number of Rights, indicating the record date for the
adjustment, and, if known at the time, the amount of the adjustment to be
made.  This record date may be the date on which the Purchase Price is
adjusted or any day thereafter, but, if the Right Certificates have been
issued, shall be at least 10 days later than the date of the public
announcement.  If Right Certificates have been issued, upon each adjustment
of the-number of Rights pursuant to this Section 11(i), the Company shall, as
promptly as practicable, cause to be distributed to holders of record of
Right Certificates on such record date Right Certificates evidencing, subject
to Section 14 hereof, the additional Rights to which such holders shall be
entitled as a result of such adjustment, or, at the option of the Company,
shall cause to be distributed to such holders of record in substitution and
replacement for the Right Certificates held by such holders prior to the date
of adjustment, and upon surrender thereof, if required by the Company, new
Right Certificates evidencing all the Rights to which such holders shall be
entitled after such adjustment.  Right Certificates so to be distributed
shall be issued, executed and countersigned in the manner provided for herein
and shall be registered in the names of the holders of record of Right
Certificates on the record date specified in the public announcement.

          (j)  Irrespective of any adjustment or change in the Purchase Price
or the number of one one-hundredths of a Preferred Share issuable upon the
exercise of the Rights, the Right Certificates theretofore and thereafter
issued may continue to express the Purchase Price and the number of one
one-hundredths of a Preferred Share which were expressed in the initial Right
Certificates issued hereunder.

          (k)  Before taking any action that would cause an adjustment
reducing the Purchase Price below one one-hundredth of the then par value, if
any, of the Preferred Shares issuable upon exercise of the Rights, the
Company shall take any corporate action which may, in the opinion of its
counsel, be necessary in order that the Company may validly and legally issue
fully paid and nonassessable Preferred Shares at such adjusted Purchase Price.


<PAGE>

          (l) In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuing to the holder of any Right exercised after such record date
of the Preferred Shares and other capital stock or securities of the Company,
if any, issuable upon such exercise over and above the Preferred Shares and
other capital stock or securities of the Company, if any, issuable upon such
exercise on the basis of the Purchase Price in effect prior to such
adjustment; PROVIDED, HOWEVER, that the Company shall deliver to such holder
a due bill or other appropriate instrument evidencing such holder's right to
receive such additional shares upon the occurrence of the event requiring
such adjustment.

          (m)  Anything in this Section 11 to the contrary notwithstanding,
the Company shall be entitled to make such reductions in the Purchase Price,
in addition to those adjustments expressly required by this Section 11, as
and to the extent that it in its sole discretion shall determine to be
advisable in order that any consolidation or subdivision of the Preferred
Shares, issuance wholly for cash of any Preferred Shares at less than the
current market price, issuance wholly for cash of Preferred Shares or
securities which by their terms are convertible into or exchangeable for
Preferred Shares, dividends on Preferred Shares payable in Preferred Shares
or issuance of rights, options or warrants referred to hereinabove in Section
11(b), hereafter made by the Company to holders of its Preferred Shares shall
not be taxable to such stockholders.

          (n)  In the event that at any time after the date of this Agreement
and prior to the Distribution Date, the Company shall (i) declare or pay any
dividend on the Common Shares payable in Common Shares or (ii) effect a
subdivision, combination or consolidation of the Common Shares (by
reclassification or otherwise than by payment of dividends in Common Shares)
into a greater or lesser number of Common Shares, then in any such case (i)
the number of one one-hundredths of a Preferred Share purchasable after such
event upon proper exercise of each Right shall be determined by multiplying
the number of one one-hundredths of a Preferred Share so purchasable
immediately prior to such event by a fraction, the numerator of which is the
number of Common Shares outstanding immediately before such event and the
denominator of which is the number of Common Shares outstanding immediately
after such event, and (ii) each Common Share outstanding immediately after
such event shall have issued with respect to it that number of Rights which
each Common Share outstanding immediately prior to such event had issued with
respect to it.  The adjustments provided for in this Section 11(n) shall be
made successively whenever such a dividend is declared or paid or such a
subdivision, combination or consolidation is effected.

          Section 12.  CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF
SHARES. Whenever an adjustment is made as provided in Sections 11 and 13
hereof, the Company shall promptly (a) prepare a certificate setting forth
such adjustment, and a brief statement of the facts accounting for such
adjustment, (b) file with the Rights Agent and with each transfer agent for
the Common Shares or the Preferred

<PAGE>

Shares a copy of such certificate and (c) mail a brief summary thereof to
each holder of a Right Certificate in accordance with Section 25 hereof.

          Section 13.  CONSOLIDATION, MERGER OR SALE OR TRANSFER OF ASSETS OR
EARNING POWER.  In the event, directly or indirectly, (a) the Company shall
consolidate with, or merge with and into, any other Person and the Company
shall not be the continuing or surviving corporation of such consolidation or
merger, (b) any Person shall consolidate with, or merge with and into, the
Company and the Company shall be the continuing or surviving corporation of
such consolidation or merger and, in connection with Such consolidation or
merger, all or part of the Common Shares of the Company shall be changed into
or exchanged for stock or other securities of any other Person (or the
Company) or cash or any other property, or (c) the Company shall sell or
otherwise transfer (or one or more of its Subsidiaries shall sell or
otherwise transfer), in one or more transactions, assets or earning power
aggregating 50% or more of the assets or earning power, respectively, of the
Company and its Subsidiaries (taken as a whole) to any other Person other
than the Company or one or more of its wholly owned Subsidiaries, then, and
in each such case, proper provision shall be made so that (i) each holder of
a Right (except as otherwise provided in this Agreement) shall thereafter
have the right to receive, upon the exercise thereof at a price equal to the
then current Purchase Price multiplied by the number of one one-hundredths of
a Preferred Share for which a Right is then exercisable, in accordance with
the terms of this Agreement and in lieu of Preferred Shares, such number of
Common Shares of such other Person (including the Company as successor
thereto or as the surviving corporation) as shall equal the result obtained
by (A) multiplying the then current Purchase Price by the number of one
one-hundredths of a Preferred Share for which a Right is then exercisable and
dividing that product by (B) 50% of the then current per share market price
of the Common Shares of such other Person (determined pursuant to Section
11(d) hereof) on the date of consummation of such consolidation, merger, sale
or transfer; (ii) the issuer of such Common Shares shall thereafter be liable
for, and shall assume, by virtue of such consolidation, merger, sale or
transfer, all the obligations and duties of the Company pursuant to this
Agreement; (iii) the term "Company" shall thereafter be deemed to refer to
such issuer; and (iv) such issuer shall take such steps (including, but not
limited to, the reservation of a sufficient number of its Common Shares in
accordance with Section 9 hereof) in connection with such consummation as may
be necessary to assure that the provisions hereof shall thereafter be
applicable, as nearly as reasonably may be, in relation to the Common Shares
thereafter deliverable upon the exercise of the Rights.  The Company shall
not consummate any such consolidation, merger, sale or transfer unless prior
thereto the Company and such issuer shall have executed and delivered to the
Rights Agent a supplemental agreement so providing. The Company shall not
enter into any transaction of the kind referred to in this Section 13 if at
the time of such transaction there are any rights, warrants, instruments or
securities outstanding or any agreements or arrangements which, as a result
of the consummation of such transaction, would eliminate or substantially
diminish the benefits intended to be afforded by the Rights.  The provisions
of this Section 13

<PAGE>

shall similarly apply to successive mergers or consolidations or sales or
other transfers.

          Section 14.  FRACTIONAL RIGHTS AND FRACTIONAL SHARES.

          (a)  The Company shall not be required to issue fractions of Rights
or to distribute Right Certificates which evidence fractional Rights.  In
lieu of such fractional Rights, there shall be paid to the registered holders
of the Right Certificates with regard to which such fractional Rights would
otherwise be issuable, an amount in cash equal to the same fraction of the
current market value of a whole Right.  For the purposes of this Section
14(a), the current market value of a whole Right shall be the closing price
of the Rights for the Trading Day immediately prior to the date on which such
fractional Rights would have been otherwise issuable.  The closing price for
any day shall be the last sale price, regular way, or, in case no such sale
takes place on such day, the average of the closing bid and asked prices,
regular way, in either case as reported in the principal consolidated
transaction reporting system with respect to securities listed or admitted to
trading on the New York Stock Exchange or, if the Rights are not listed or
admitted to trading on the New York Stock Exchange, as reported in the
principal consolidated transaction reporting system with respect to
securities listed on the principal national securities exchange on which the
Rights are listed or admitted to trading or, if the Rights are not listed or
admitted to trading on any national securities exchange, the last quoted
price or, if not so quoted, the average of the high bid and low asked prices
in the over-the-counter market, as reported by NASDAQ or such other system
then in use or, if on any such date the Rights are not quoted by any such
organization, the average of the closing bid and asked prices as furnished by
a professional market maker making a market in the Rights selected by the
Board of Directors of the Company.  If on any such date no such market maker
is making a market in the Rights, the fair value of the Rights on such date
as determined in good faith by the Board of Directors of the Company shall be
used.

          (b)  The Company shall not be required to issue fractions of
Preferred Shares (other than fractions which are integral multiples of one
one-hundredth of a Preferred Share) upon exercise of the Rights or to
distribute certificates which evidence fractional Preferred Shares (other
than fractions which are integral multiples of one one-hundredth of a
Preferred Share).  Fractions of Preferred Shares in integral multiples of one
one-hundredth of a Preferred Share may, at the election of the Company, be
evidenced by depositary receipts, pursuant to an appropriate agreement
between the Company and a depositary selected by it, or by scrip; PROVIDED,
that (i) if the Company issues such scrip, then such scrip shall not confer
upon the holder any voting or other rights of a stockholder of the Company,
but the Company shall from time to time, upon demand of any holder of such
scrip and the surrender of scrip for fractional Preferred Shares aggregating
one whole Preferred Share, issue one whole Preferred Share to such holder and
(ii) if the Company issues depositary receipts pursuant to any such
agreement, such agreement shall provide that the holders of such depositary
receipts shall have all the rights, privileges and

<PAGE>

preferences to which they are entitled as beneficial owners of the Preferred
Shares represented by such depositary receipts.  In lieu of fractional
Preferred Shares that are not integral multiples of one one-hundredth of a
Preferred Share, the Company shall pay to the registered holders of Right
Certificates at the time such Rights are exercised as herein provided an
amount in cash equal to the same fraction of the current market value of one
Preferred Share.  For the purposes of this Section 14(b), the current market
value of a Preferred Share shall be the closing price of a Preferred Share
(as determined pursuant to the second sentence of Section 11(d)(i) hereof)
for the Trading Day immediately prior to the date of such exercise.

     (c)  The holder of a Right by the acceptance of the Right expressly
waives his right to receive any fractional Rights or any fractional shares
upon exercise of a Right (except as provided above).

          Section 15.  RIGHTS OF ACTION.  All rights of action in respect of
this Agreement, excepting the rights of action given to the Rights Agent
under Section 18 hereof, are vested in the respective registered holders of
the Right Certificates (and, prior to the Distribution Date, the registered
holders of the Common Shares); and any registered holder of any Right
Certificate (or, prior to the Distribution Date, of the Common Shares),
without the consent of the Rights Agent or of the holder of any other Right
Certificate (or, prior to the Distribution Date, of the Common Shares), may,
in his own behalf and for his own benefit, enforce, and may institute and
maintain any suit, action or proceeding against the Company to enforce, or
otherwise act in respect of, his right to exercise the Rights evidenced by
such Right Certificate in the manner provided in such Right Certificate and
in this Agreement.  Without limiting the foregoing or any remedies available
to the holders of Rights, it is specifically acknowledged that the holders of
Rights would not have an adequate remedy at law for any breach of this
Agreement and will be entitled to specific performance of the obligations
under, and injunctive relief against actual or threatened violations of the
obligations of any Person subject to, this Agreement.

          Section 16.  AGREEMENT OF RIGHT HOLDERS.  Every holder of a Right,
by accepting the same, consents and agrees with the Company and the Rights
Agent and with every other holder of a Right that:

          (a)  prior to the Distribution Date, the Rights will be
transferable only in connection with the transfer of the Common Shares;

          (b)  after the Distribution Date, the Right Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the principal office of the Rights Agent, duly endorsed or accompanied by a
proper instrument of transfer; and

          (c)  the Company and the Rights Agent may deem and treat the person
in whose name the Right Certificate (or, prior to the Distribution Date, the
associated Common Shares certificate) is registered as the absolute owner
thereof

<PAGE>

and of the Rights evidenced thereby (notwithstanding any notations of
ownership or writing on the Right Certificates or the associated Common
Shares certificate made by anyone other than the Company or the Rights Agent)
for all purposes whatsoever, and neither the Company nor the Rights Agent
shall be affected by any notice to the contrary.

          Section 17. RIGHT CERTIFICATE HOLDER NOT DEEMED A STOCKHOLDER.  No
holder, as such, of any Right Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose the holder of the Preferred Shares or
any other securities of the Company which may at any time be issuable on the
exercise of the Rights represented thereby, nor shall anything contained
herein or in any Right Certificate be construed to confer upon the holder of
any Right Certificate, as such, any of the rights of a stockholder of the
Company or any right to vote for the election of directors or upon any matter
submitted to stockholders at any meeting thereof, or to give or withhold
consent to any corporate action, or to receive notice of meetings or other
actions affecting stockholders (except as provided in Section 25 hereof), or
to receive dividends or subscription rights, or otherwise, until the Right or
Rights evidenced by such Right Certificate shall have been exercised in
accordance with the provisions hereof.

          Section 18.  CONCERNING THE RIGHTS AGENT.  The Company agrees to
pay to the Rights Agent reasonable compensation for all services rendered by
it hereunder and, from time to time, on demand of the Rights Agent, its
reasonable expenses and counsel fees and other disbursements incurred in the
administration and execution of this Agreement and the exercise and
performance of its duties hereunder.  The Company also agrees to indemnify
the Rights Agent for, and to hold it harmless against, any loss, liability,
or expense, incurred without negligence, bad faith or willful misconduct on
the part of the Rights Agent, for anything done or omitted by the Rights
Agent in connection with the acceptance and administration of this Agreement,
including the costs and expenses of defending against any claim of liability
in the premises.

          The Rights Agent shall be protected and shall incur no liability
for, or in respect of any action taken, suffered or omitted by it in
connection with, its administration of this Agreement in reliance upon any
Right Certificate or certificate for the Preferred Shares (or for scrip or
depositary receipts evidencing fractional interests in Preferred Shares) or
Common Shares or for other securities of the Company, instrument of
assignment or transfer, power if attorney, endorsement, affidavit, letter,
notice, direction, consent, certificate, statement, or other paper or
document believed by it to be genuine and to be signed, executed and, where
necessary, verified or acknowledged, by the proper person or persons, or
otherwise upon the advice of counsel as set forth in Section 20 hereof.

          Section 19  MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS
AGENT, Any corporation into which the Rights Agent or any successor Rights
Agent may be merged or with which it may be consolidated, or any corporation
resulting

<PAGE>

from any merger or consolidation to which the Rights Agent or any successor
Rights Agent shall be a party, or any corporation succeeding to the stock
transfer or corporate trust business of the Rights Agent or any successor
Rights Agent, shall be the successor to the Rights Agent under this Agreement
without the execution or filing of any paper or any further act on the part
of any of the parties hereto, provided that such corporation would be
eligible for appointment as a successor Rights Agent under the provisions of
Section 21 hereof.  In case at the time such successor Rights Agent shall
succeed to the agency created by this Agreement any of the Right Certificates
shall have been countersigned but not delivered, any such successor Rights
Agent may adopt the countersignature of the predecessor Rights Agent and
deliver such Right Certificates so countersigned; and in case at that time any
of the Right Certificates shall not have been countersigned, any successor
Rights Agent may countersign such Right Certificates either in the name of
the predecessor Rights Agent or in the name of the successor Rights Agent;
and in all such cases such Right Certificates shall have the full force
provided in the Right Certificates and in this Agreement.

          In case at any time the name of the Rights Agent shall be changed
and at such time any of the Right Certificates shall have been countersigned
but not delivered, the Rights Agent may adopt the countersignature under its
prior name and deliver Right Certificates so countersigned; and in case at
that time any of the Right Certificates shall not have been countersigned,
the Rights Agent may countersign such Right Certificates either in its prior
name or in its changed name; and in all such cases such Right Certificates
shall have the full force provided in the Right Certificates and in this
Agreement.

          Section 20.  DUTIES OF RIGHTS AGENT.  The Rights Agent undertakes
the duties and obligations imposed by this Agreement upon the following terms
and conditions, by all of which the Company and the holders of Right
Certificates, by their acceptance thereof, shall be bound:

          (a)  The Rights Agent may consult with legal counsel (who may be
legal counsel for the Company), and the opinion of such counsel shall be full
and complete authorization and protection to the Rights Agent as to any
action taken or omitted by it in good faith and in accordance with such
opinion.

          (b)  Whenever in the performance of its duties under this Agreement
the Rights Agent shall deem it necessary or desirable that any fact or matter
be proved or established by the Company prior to taking or suffering any
action hereunder, such fact or matter (unless other evidence in respect
thereof be herein specifically prescribed) may be deemed to be conclusively
proved and established by a certificate signed by any one of the Chairman,
any Vice Chairman, the President, any Vice President, the Treasurer, the
Secretary or the Controller of the Company and delivered to the Rights Agent;
and such certificate shall be full authorization to the Rights Agent for any
action taken or suffered in good faith by it under the provisions of this
Agreement in reliance upon such certificate.

<PAGE>


          (c)  The Rights Agent shall be liable hereunder to the Company and
any other Person only for its own negligence, bad faith or willful misconduct.

          (d)  The Rights Agent shall not be liable for or by reason of any
of the statements of fact or recitals contained in this Agreement or in the
Right Certificates (except its countersignature thereof) or be required to
verify the same, but all such statements and recitals are and shall be deemed
to have been made by the Company only.

          (e)  The Rights Agent shall not be under any responsibility in
respect of the validity of this Agreement or the execution and delivery
hereof (except the due execution hereof by the Rights Agent) or in respect of
the validity or execution of any Right Certificate (except its
countersignature thereof); nor shall it be responsible for any breach by the
Company of any covenant or condition contained in this Agreement or in any
Right Certificate; nor shall it be responsible for any change in the
exercisability of the Rights (including the Rights becoming void pursuant to
Section 11(a)(ii) hereof) or any adjustment in the terms of the Rights
(including the manner, method or amount thereof) provided for in Section 3,
11, 13, 23 or 24, or the ascertaining of the existence of facts that would
require any such change or adjustment (except with respect to the exercise of
Rights evidenced by Right Certificates after receipt of actual notice from
the Company stating that a change or adjustment is required and specifying
the manner and amount thereof); nor shall it by any act hereunder be deemed
to make any representation or warranty as to the authorization or reservation
of any Preferred Shares to be issued pursuant to this Agreement or any Right
Certificate or as to whether any Preferred Shares will, when issued, be
validly authorized and issued, fully paid and nonassessable.

          (f)  The Company agrees that it will perform, execute, acknowledge
and deliver or cause to be performed, executed, acknowledged and delivered
all such further and other acts, instruments and assurances as may reasonably
be required by the Rights Agent for the carrying out or performing by the
Rights Agent of the provisions of this Agreement.

          (g)  The Rights Agents is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from any
one of the Chairman, any Vice Chairman, the President, any Vice President,
the Secretary, the Treasurer or the Controller of the Company, and to apply
to such officers for advice of instructions in connection with its duties,
and it shall not be liable for any action taken or suffered by it in good
faith in accordance with instructions of any such officer or for any delay in
acting while waiting for those instructions.

          (h)  The Rights Agent and any stockholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or
other securities of the Company or become pecuniarily interested in any
transaction in which the Company may be interested, or contract with or lend
money to the

<PAGE>

Company or otherwise act as fully and freely as though it were not Rights
Agent under this Agreement.  Nothing herein shall preclude the Rights Agent
from acting in any other capacity for the Company or for any other legal
entity.

          (i)  The Rights Agent may execute and exercise any of the rights or
powers hereby vested in it or perform any duty hereunder either itself or by
or through its attorneys or agents, and the Rights Agent shall not be
answerable or accountable for any act, default, neglect or misconduct of any
such attorneys or agents or for any loss to the Company resulting from any
such act, default, neglect or misconduct, provided reasonable care was
exercised in the selection and continued employment thereof.

          Section 21.  CHANCE OF RIGHTS AGENT.  The Rights Agent or any
successor Rights Agent may resign and be discharged from its duties under
this Agreement upon 30 days' notice in writing mailed to the Company and to
each transfer agent of the Common Shares or Preferred Shares by registered or
certified mail, and to the holders of the Rights Certificates by first-class
mail.  The Company may remove the Rights Agent or any successor Rights Agent
upon 30 days' notice in writing, mailed to the Rights Agent or successor
Rights Agent, as the case may be, and to each transfer agent of the Common
Shares or Preferred Shares by registered or certified mail, and to the
holders of the Right Certificates by first-class mail.  If the Rights Agent
shall resign or be removed or shall otherwise become incapable of acting, the
Company shall appoint a successor to the Rights Agent.  If the Company shall
fail to make such appointment within a period of 30 days after giving notice
of such removal or after it has been notified in writing of such resignation
or incapacity by the resigning or incapacitated Rights Agent or by the holder
of a Right Certificate (who shall, with such notice, submit his Right
Certificate for inspection by the Company), then the registered holder of any
Right Certificate may apply to any court of competent jurisdiction for the
appointment of a new Rights Agent.  Any successor Rights Agent, whether
appointed by the Company or by such a court, shall be a corporation organized
and doing business under the laws of the United States or of the State of New
York (or of any other state of the United States so long as such corporation
is authorized to do business as a banking institution in the State of New
York, in good standing, having an office in the State of New York, which is
authorized under such laws to exercise corporate trust or stock transfer
powers and is subject to supervision or examination by federal or state
authority and which has or is a subsidiary of a corporation which has at the
time of its appointment as Rights Agent a combined capital and surplus of at
least $50 million. After appointment, the successor Rights Agent shall be
vested with the same powers, rights, duties and responsibilities as if it had
been originally named as Rights Agent without further act or deed; but the
predecessor Rights Agent shall deliver and transfer to the successor Rights
Agent any property at the time held by it hereunder, and execute and deliver
any further assurance, conveyance, act or deed necessary for the purpose.
Not later than the effective date of any such appointment the Company shall
file notice thereof in writing with the predecessor Rights Agent and each
transfer agent of the Common Shares or Preferred Shares, and mail a notice

<PAGE>

thereof in writing to the registered holders of the Right Certificates.
Failure to give any notice provided for in this Section 21, however, or any
defect therein, shall not affect the legality or validity of the resignation
or removal of the Rights Agent or the appointment of the successor Rights
Agent, as the case may be.

          Section 22.  ISSUANCE OF NEW RIGHT CERTIFICATES.  Notwithstanding
any of the provisions of this Agreement or of the Rights to the contrary, the
Company may, at its option, issue new Right Certificates evidencing Rights in
such form as may be approved by its Board of Directors to reflect any
adjustment or change in the Purchase Price and the number or kind or class of
shares or other securities or property purchasable under the Right
Certificates made in accordance with the provisions of this Agreement.

          Section 23.  REDEMPTION.

          (a)  The Board of Directors of the Company may, at its option, at
any time prior to such time as any Person becomes an Acquiring Person, redeem
all but not less than all of the then outstanding Rights at a redemption
price of $.01 per Right, appropriately adjusted to reflect any stock split,
stock dividend or similar transaction occurring after the date hereof (such
redemption price being hereinafter referred to as the "Redemption Price").
The redemption of the Rights by the Board of Directors may be made effective
at such time on such basis and with such conditions as the Board of Directors
in its sole discretion may establish.

          (b)  Immediately upon the action of the Board of Directors of the
Company ordering the redemption of the Rights pursuant to paragraph (a) of
this Section 23, and without any further action and without any notice, the
right to exercise the Rights will terminate and the only right thereafter of
the holders of Rights shall be to receive the Redemption Price.  The Company
shall promptly give public notice of any such redemption; PROVIDED, HOWEVER,
that the failure to give, or any defect in, any such notice shall not affect
the validity of such redemption.  Within 10 days after such action of the
Board of Directors ordering the redemption of the Rights, the Company shall
mail a notice of redemption to all the holders of the then outstanding Rights
at their last addresses as they appear upon the registry books of the Rights
Agent or, prior to the Distribution Date, on the registry books of the
transfer agent for the Common Shares.  Any notice which is mailed in the
manner herein provided shall be deemed given, whether or not the holder
receives the notice.  Each such notice of redemption will state the method by
which the payment of the Redemption Price will be made. Neither the Company
nor any of its Affiliates or Associates may redeem, acquire or purchase for
value any Rights at any time in any manner other than that specifically set
forth in this Section 23 or in Section 24 hereof, and other than in
connection with the purchase of Common Shares prior to the Distribution Date.

          Section 24.  EXCHANGE.

<PAGE>


          (a)  The Board of Directors of the Company may, at its option, at
any time after any person becomes an Acquiring Person, exchange all or part
of the then outstanding and exercisable Rights (which shall not include
Rights that have become void pursuant to the provisions of Section 11(a)(ii)
hereof) for Common Shares at an exchange ratio of one Common Share per Right,
appropriately adjusted to reflect any stock split, stock dividend or similar
transaction occurring after the date hereof (such exchange ratio being
hereinafter referred to as the "Exchange Ratio").  Notwithstanding the
foregoing, the Board of Directors shall not be empowered to effect such
exchange at any time after any Person (other than the Company, any Subsidiary
of the Company, any employee benefit plan of the Company or any such
Subsidiary, or any entity holding Common Shares for or pursuant to the terms
of any such plan), together with all Affiliates and Associates of such
Person, becomes the Beneficial Owner of 50% or more of the Common Shares then
outstanding.

          (b)  Immediately upon the action of the Board of Directors of the
Company ordering the exchange of any Rights pursuant to subsection (a) of
this Section 24 and without any further action and without any notice, the
right to exercise such Rights shall terminate and the only right thereafter
of a holder of such Rights shall be to receive that number of Common Shares
equal to the number of such Rights held by such holder multiplied by the
Exchange Ratio.  The Company shall promptly give public notice of any such
exchange; PROVIDED, HOWEVER, that the failure to give, or any defect in, such
notice shall not affect the validity of such exchange.  The Company promptly
shall mail a notice of any such exchange to all of the holders of such Rights
at their last addresses as they appear upon the registry books of the Rights
Agent.  Any notice which is mailed in the manner herein provided shall be
deemed given, whether or not the holder receives the notice.  Each such
notice of exchange will state the method by which the exchange of the Common
Shares for Rights will be effected and, in the event of any partial exchange,
the number of Rights which will be exchanged. Any partial exchange shall be
effected pro rata based on the number of outstanding and exercisable Rights
(other than Rights which have become void pursuant to the provisions of
Section 11(a)(ii) hereof) held by each holder of Rights.

          (c)  In any exchange pursuant to this Section 24, the Company, at
its option, may substitute Preferred Shares (or equivalent preferred shares,
as such term is defined in Section 11(b) hereof) for Common Shares
exchangeable for Rights, at the initial rate of one one-hundredth of a
Preferred Share (or equivalent preferred share) for each Common Share, as
appropriately adjusted to reflect adjustments in the voting rights of the
Preferred Shares pursuant to the terms thereof, so that the product of (i)
the fraction of a Preferred Share delivered in lieu of each Common Share
multiplied by (ii) the number To votes to which a whole Preferred Share is
then entitled shall equal the number of votes to which one Common Share is
then entitled.

<PAGE>


          (d)  In the event that there shall not be sufficient Common Shares
or Preferred Shares (or equivalent preferred shares) issued but not
outstanding or authorized but unissued to permit any exchange of Rights as
contemplated in accordance with this Section 24, the Company shall take all
such action as may be necessary to authorize additional Common Shares or
Preferred Shares for issuance upon exchange of the Rights.

          (e)  The Company shall not be required to issue fractions of Common
Shares or to distribute certificates which evidence fractional Common Shares.
In lieu of such fractional Common Shares, the Company shall pay to the
registered holders of the Right Certificates with regard to which such
fractional Common Shares would otherwise be issuable an amount in cash equal
to the same fraction of the current market value of a whole Common Share.
For the purposes of this paragraph (e), the current market value of a whole
Common Share shall be the closing price of a Common Share (as determined
pursuant to the second sentence of Section 11(d)(i) hereof) for the Trading
Day immediately prior to the date of exchange pursuant to this Section 24.

          Section 25.  NOTICE OF CERTAIN EVENTS.

          (a)  In case the Company shall propose (i) to pay any dividend
payable in stock of any class to the holders of its Preferred Shares or to
make any other distribution to the holders of its Preferred Shares (other
than a regular quarterly cash dividend), (ii) to offer to the holders of its
Preferred Shares rights or warrants to subscribe for or to purchase any
additional Preferred Shares or shares of stock of any class or any other
securities, rights or options, (iii) to effect any reclassification of its
Preferred Shares (other than a reclassification involving only the
subdivision of outstanding Preferred Shares), (iv) to effect any
consolidation or merger into or with, or to effect any sale or other transfer
(or to permit one or more of its Subsidiaries to effect any sale or other
transfer), in one or more transactions, of 50% or more of the assets or
earning power of the Company and its Subsidiaries (taken as a whole) to, any
other Person, (v) to effect the liquidation, dissolution or winding up of the
Company, or (vi) to declare or pay any dividend on the Common Shares payable
in Common Shares or to effect a subdivision, combination or consolidation of
the Common Shares (by reclassification or otherwise than by payment of
dividends in Common Shares), then, in each such case, the Company shall give
to each holder of a Right Certificate, in accordance with Section 26 hereof,
a notice of such proposed action, which shall specify the record date for the
purposes of such stock dividend, or distribution of rights or warrants, or
the date on which such reclassification, consolidation, merger, sale,
transfer, liquidation, dissolution, or winding up is to take place and the
date of participation therein by the holders of the Common Shares and/or
Preferred Shares, if any such date is to be fixed, and such notice shall be
so given in the case of any action covered by clause (i) or (ii) above at
least 10 days prior to the record date for determining holders of the
Preferred Shares for purposes of such action, and in the case of any such
other action, at least 10 days prior to the date of the taking of such
proposed action or the

<PAGE>

date of participation therein by the holders of the Common Shares and/or
Preferred Shares, whichever shall be the earlier.

          (b)  In case any of the events set forth in Section 11(a)(ii)
hereof shall occur, then the Company shall as soon as practicable thereafter
give to each holder of a Right Certificate, in accordance with Section 26
hereof, a notice of the occurrence of such event, which notice shall describe
such event and the consequences of such event to holders of Rights under
Section 11(a)(ii) hereof.

          Section 26.  NOTICES.  Notices or demands authorized by this
Agreement to be given or made by the Rights Agent or by the holder of any
Right Certificate to or on the Company shall be sufficiently given or made if
sent by first-class mail, postage prepaid, addressed (until another address
is filed in writing with the Rights Agent) as follows:

          First Bank System, Inc.
          1200 First Bank Place East
          Minneapolis, Minnesota 55480
          Attention: Corporate Secretary

Subject to the provisions of Section 21 hereof, any notice or demand
authorized by this Agreement to be given or made by the Company or by the
holder of any Right Certificate to or on the Rights Agent shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed (until another address is filed in writing with the Company) as
follows:

          Morgan Shareholder Services Trust Company
          30 West Broadway
          New York, NY 10007
          Attention: Tenders & Exchange Administration

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Right Certificate shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the
registry books of the Company.

          Section 27. SUPPLEMENTS AND AMENDMENTS.  The Company may from time
to time supplement or amend this Agreement without the approval of any
holders of Right Certificates in order to cure any ambiguity, to correct or
supplement any provision contained herein which may be defective or
inconsistent with any other provisions herein, or to make any other
provisions with respect to the Rights which the Company may deem necessary or
desirable, any such supplement or amendment to be evidenced by a writing
signed by the Company and the Rights Agent; PROVIDED, HOWEVER, that from and
after such time as any Person becomes an Acquiring Person, this Agreement
shall not be amended in any manner


<PAGE>

which would adversely affect the interests of the holders of Rights.  Without
limiting the foregoing, the Company may at any time prior to such time as any
Person becomes an Acquiring Person amend this Agreement to lower the
thresholds set forth in Sections l(a) and 3(a) to not less than the greater
of (i) any percentage greater than the largest percentage of the outstanding
Common Shares then known by the Company to be beneficially owned by any
Person (other than the Company, any Subsidiary of the Company, any employee
benefit plan of the Company or any Subsidiary of the Company, or any entity
holding Common Shares for or pursuant to the terms of any such plan) and (ii)
10%.

          Section 28.  SUCCESSORS.  All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

          Section 29.  BENEFITS OF THIS AGREEMENT.  Nothing in this Agreement
shall be construed to give to any person or corporation other than the
Company, the Rights Agent and the registered holders of the Right
Certificates (and, prior to the Distribution Date, the Common Shares) any
legal or equitable right, remedy or claim under this Agreement; but this
Agreement shall be for the sole and exclusive benefit of the Company, the
Rights Agent and the registered holders of the Right Certificates (and, prior
to the Distribution Date, the Common Shares).

          Section 30.  SEVERABILITY.  If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain
in full force and effect and shall in no way be affected, impaired or
invalidated.

          Section 31.  GOVERNING LAW.  This Agreement and each Right
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of Delaware and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts
to be made and performed entirely within such State.

          Section 32.  COUNTERPARTS.  This Agreement may be executed in any
number of counterparts and each of such counterparts shall for all purposes
be deemed to be an original, and all such counterparts shall together
constitute but one and the same instrument.

          Section 33.  DESCRIPTIVE HEADINGS.  Descriptive headings of the
several Sections of this Agreement are inserted for convenience only and
shall not control or affect the meaning or construction of any of the
provisions hereof.

          IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be duly executed and attested, all as of the day and year first above
written.

<PAGE>

                                             FIRST BANK SYSTEM, INC.

Attest:

By ________________________                   By ________________________

  Its _____________________                      Its _____________________

                                              MORGAN SHAREHOLDER
                                                SERVICES TRUST COMPANY

Attest:

By ________________________                   By ________________________

   Its ____________________                      Its ____________________


<PAGE>


                                                                 EXHIBIT A
                                                                 ---------

CERTIFICATE OF DESIGNATION OF THE VOTING POWERS, PREFERENCES AND RELATIVE,
PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS, AND THE QUALIFICATIONS,
LIMITATIONS OR RESTRICTIONS THEREOF, WHICH HAVE NOT BEEN SET FORTH IN THE
CERTIFICATE OF INCORPORATION OR IN ANY AMENDMENT THERETO, OF THE SERIES A
JUNIOR PARTICIPATING PREFERRED STOCK

                           (Par Value $1.00)
                                  of
                        FIRST BANK SYSTEM, INC.
                    (Pursuant to Section 151 of the
                    Delaware General Corporation Law)

                  ------------------------------------

          The undersigned DO HEREBY CERTIFY that the following resolution was
adopted by the Board of Directors of First Bank System, Inc., a corporation
organized and existing under the General Corporation Law of the State of
Delaware (hereinafter called the "Corporation"), as required by Section 151
of the General Corporation Law at a meeting duly called and held on December
21, 1988:

          RESOLVED, that pursuant to the authority granted to and vested in
the Board of Directors of this Corporation (hereinafter called the "Board of
Directors" or the "Board") in accordance with the provisions of the
Certificate of Incorporation of the Corporation, the Board of Directors
hereby creates a series of Preferred Stock, par value $1.00 (the "Preferred
Stock"), of the Corporation and hereby states the designation and number of
shares, and fixes the relative rights, preferences and limitations thereof as
follows:

          Series A Junior Participating Preferred Stock:

          Section 1.  DESIGNATION AND AMOUNT.  The shares of such series
shall be designated as "Series A Junior Participating Preferred Stock" (the
"Series A Junior Preferred Stock") and the number of shares constituting the
Series A Preferred Stock shall be 700,000.  Such number of shares may be
increased or decreased by resolution of the Board of Directors; PROVIDED,
that no decrease shall reduce the number of shares of Series A Junior
Preferred Stock to a number less than the number of shares then outstanding
plus the number of shares reserved for issuance upon the exercise of
outstanding options, rights or warrants or upon the conversion of any
outstanding securities issued by the Corporation convertible into Series A
Junior Preferred Stock.

          Section 2.   DIVIDENDS AND DISTRIBUTIONS.

<PAGE>


          (A)  Subject to the rights of the holders of any shares of any
series of Preferred Stock (or any similar stock) ranking prior and superior
to the Series A Junior Preferred Stock with respect to dividends, the holders
of shares of Series A Junior Preferred Stock, in preference to the holders of
Common Stock, par value $1.25 (the "Common Stock"), of the Corporation, and
of any other junior stock, shall be entitled to receive, when, as and if
declared by the Board of Directors out of funds legally available for the
purpose, quarterly dividends payable in cash on the first day of March, June,
September and December in each year (each such date being referred to herein
as a "Quarterly Dividend Payment Date"), commencing on the first Quarterly
Dividend Payment Date after the first issuance of a share or fraction of a
share of Series A Junior Preferred Stock, in an amount per share (rounded to
the nearest cent) equal to the greater of (a) $1.00 or (b) subject to the
provision for adjustment hereinafter set forth, 100 times the aggregate per
share amount of all cash dividends, and 100 times the aggregate per share
amount (payable in kind) of all non-cash dividends or other distributions,
other than a dividend payable in shares of Common Stock or a subdivision of
the outstanding shares of Common Stock (by reclassification or otherwise),
declared on the Common Stock since the immediately preceding Quarterly
Dividend Payment Date or, with respect to the first Quarterly Dividend
Payment Date, since the first issuance of any share or fraction of a share of
Series A Junior Preferred Stock. In the event the Corporation shall at any
time declare or pay any dividend on the Common Stock payable in shares of
Common Stock, or effect a subdivision or combination or consolidation of the
outstanding shares of Common Stock (by reclassification or otherwise than by
payment of a dividend in shares of Common Stock) into a greater or lesser
number of shares of Common Stock, then in each such case the amount to which
holders of shares of Series A Junior Preferred Stock were entitled
immediately prior to such event under clause (b) of the preceding sentence
shall be adjusted by multiplying such amount by a fraction, the numerator of
which is the number of shares of Common Stock outstanding immediately after
such event and the denominator of which is the number of shares of Common
Stock that were outstanding immediately prior to such event.

          (B)  The Corporation shall declare a dividend or distribution on the
Series A Junior Preferred Stock as provided in paragraph (A) of this Section
immediately after it declares a dividend or distribution on the Common Stock
(other than a dividend payable in shares of Common Stock); provided that, in
the event no dividend or distribution shall have been declared on the Common
Stock during the period between any Quarterly Dividend Payment Date and the
next subsequent Quarterly Dividend Payment Date, a dividend of $1.00 per
share on the Series A Junior Preferred Stock shall nevertheless be payable on
such subsequent Quarterly Dividend Payment Date.

          (C)  Dividends shall begin to accrue and be cumulative on
outstanding shares of Series A Junior Preferred Stock from the Quarterly

<PAGE>

Dividend Payment Date next preceding the date of issue of such shares, unless
the date of issue of such shares is prior to the record date for the first
Quarterly Dividend Payment Date, in which case dividends on such shares shall
begin to accrue from the date of issue of such shares, or unless the date of
issue is a Quarterly Dividend Payment Date or is a date after the record date
for the determination of holders of shares of Series A Junior Preferred Stock
entitled to receive a quarterly dividend and before such Quarterly Dividend
Payment Date, in either of which events such dividends shall begin to accrue
and be cumulative from such Quarterly Dividend Payment Date.  Accrued but
unpaid dividends shall not bear interest.  Dividends paid on the shares of
Series A Junior Preferred Stock in an amount less than the total amount of
such dividends at the time accrued and payable on such shares shall be
allocated pro rata on a share-by-share basis amount all such shares at the
time outstanding.  The Board of Directors may fix a record date for the
determination of holders of shares of Series A Junior Preferred Stock
entitled to receive payment of a dividend or distribution declared thereon,
which record date shall be not more than 60 days prior to the date fixed for
the payment thereof.

          Section 3.   VOTING RIGHTS.  The holders of shares of Series A
Junior Preferred Stock shall have the following voting rights:

          (A)  Subject to the provision for adjustment hereinafter set forth,
each share of Series A Junior Preferred Stock shall entitle the holder
thereof to 100 votes on all matters submitted to a vote of the stockholders
of the Corporation. In the event the Corporation shall at any time declare or
pay any dividend on the Common Stock payable in shares of Common Stock, or
effect a subdivision or combination or consolidation of the outstanding
shares of Common Stock (by reclassification or otherwise than by payment of a
dividend in shares of Common Stock) into a greater or lesser number of shares
of Common Stock, then in each such case the number of votes per share to
which holders of shares of Series A Junior Preferred Stock were entitled
immediately prior to such event shall be adjusted by multiplying such number
by a fraction, the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to
such event.

         (B)  Except as otherwise provided herein, in any other Certificate
of Designations creating a series of Preferred Stock or any similar stock, or
by law, the holders of shares of Series A Junior Preferred Stock and the
holders of shares of Common Stock and any other capital stock of the
Corporation having general voting rights shall vote together as one class on
all matters submitted to a vote of stockholders of the Corporation.

<PAGE>


          (C)  Except as set forth herein, or as otherwise provided by law,
holders of Series A Junior Preferred Stock shall have no special voting
rights and their consent shall not be required (except to the extent they are
entitled to vote with holders of Common Stock as set forth herein) for taking
any corporate action.

          Section 4.  CERTAIN RESTRICTIONS.

         (A)  Whenever quarterly dividends or other dividends or
distributions payable on the Series A Junior Preferred Stock as provided in
Section 2 are in arrears, thereafter and until all accrued and unpaid
dividends and distributions, whether or not declared, on shares of Series A
Junior Preferred Stock outstanding shall have been paid in full, the
Corporation shall not:

               (i)  declare or pay dividends, or make any other distributions,
          on any shares of stock ranking junior (either as to dividends or upon
          liquidation, dissolution or winding up) to the Series A Junior
          Preferred Stock;

               (ii)  declare or pay dividends, or make any other distributions,
          on any shares of stock ranking on a parity (either as to dividends or
          upon liquidation, dissolution or winding up) with the Series A Junior
          Preferred Stock, except dividends paid ratably on the Series A Junior
          Preferred Stock and all such parity stock on which dividends are
          payable or in arrears in proportion to the total amounts to which the
          holders of all such shares are then entitled;

               (iii)  redeem or purchase or otherwise acquire for consideration
          shares of any stock ranking junior (either as to dividends or upon
          liquidation, dissolution or winding up) to the Series A Junior
          Preferred Stock, provided that the Corporation may at any time
          redeem, purchase or otherwise acquire shares of any such junior stock
          in exchange for shares of any stock of the Corporation ranking junior
          (either as to dividends or upon dissolution, liquidation or winding
          up) to the Series A Junior Preferred Stock; or

               (iv)   redeem or purchase or otherwise acquire for consideration
          any shares of Series A Junior Preferred Stock, or any shares of stock
          ranking on a parity with the Series A Junior Preferred Stock, except
          in accordance with a purchase offer made in writing or by publication
          (as determined by the Board of Directors) to all holders of such
          shares upon such terms as the Board of Directors, after consideration
          of the respective annual dividend rates and other relative rights and
          preferences of the respective series and classes, shall determine in
          good

<PAGE>

          faith will result in fair and equitable treatment among the respective
          series or classes.

          (B)  The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under paragraph (A) of
this Section 4, purchase or otherwise acquire such shares at such time and in
such manner.

          Section 5.  REACQUIRED SHARES.  Any shares of Series A Junior
Preferred Stock purchased or otherwise acquired by the Corporation in any
manner whatsoever shall be retired and cancelled promptly after the
acquisition thereof.  All such shares shall upon their cancellation become
authorized but unissued shares of Preferred Stock and may be reissued as part
of a new series of Preferred Stock subject to the conditions and restrictions
on issuance set forth herein, in the Certificate of Incorporation, or in any
other Certificate of Designations creating a series of Preferred Stock or any
similar stock or as otherwise required by law.

          Section 6.  LIQUIDATION, DISSOLUTION OR WINDING UP.  Upon any
liquidation, dissolution or winding up of the Corporation, no distribution
shall be made (1) to the holders of shares of stock ranking junior (either as
to dividends or upon liquidation, dissolution or winding up) to the Series A
Junior Preferred Stock unless, prior thereto, the holders of shares of Series
A Junior Preferred Stock shall have received $100 per share, plus an amount
equal to accrued and unpaid dividends and distributions thereon, whether or
not declared, to the date of such payment, provided that the holders of
shares of Series A Junior Preferred Stock shall be entitled to receive an
aggregate amount per share, subject to the provision for adjustment
hereinafter set forth, equal to 100 times the aggregate amount to be
distributed per share to holders of shares of Common Stock, or (2) to the
holders of shares of stock ranking on a parity (either as to dividends or
upon liquidation, dissolution or winding up) with the Series A Junior
Preferred Stock, except distributions made ratably on the Series A Junior
Preferred Stock and all such parity stock in proportion to the total amounts
to which the holders of all such shares are entitled upon such liquidation,
dissolution or winding up. In the event the Corporation shall at any time
declare or pay any dividend on the Common Stock payable in shares of Common
Stock, or effect a subdivision or combination or consolidation of the
outstanding shares of Common Stock (by reclassification or otherwise than by
payment of a dividend in shares of Common Stock) into a greater or lesser
number of shares of Common Stock, then in each such case the aggregate amount
to which holders of shares of Series A Junior Preferred Stock were entitled
immediately prior to such event under the proviso in clause (1) of the
preceding sentence shall be adjusted by multiplying such amount by a fraction
the numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

<PAGE>


          Section 7.  CONSOLIDATION, MERGER, ETC.  In case the Corporation
shall enter into any consolidation, merger, combination or other transaction
in which the shares of Common Stock are exchanged for or changed into other
stock or securities, cash and/or any other property, then in any such case
each share of Series A Junior Preferred Stock shall at the same time be
similarly exchanged or changed into an amount per share, subject to the
provision for adjustment hereinafter set forth, equal to 100 times the
aggregate amount of stock, securities, cash and/or any other property
(payable in kind), as the case may be, into which or for which each share of
Common Stock is changed or exchanged.  In the event the Corporation shall at
any time declare or pay any dividend on the Common Stock payable in shares of
Common Stock, or effect a subdivision or combination or consolidation of the
outstanding shares of Common Stock (by reclassification or otherwise than by
payment of a dividend in shares of Common Stock) into a greater or lesser
number of shares of Common Stock, then in each such case the amount set forth
in the preceding sentence with respect to the exchange or change of shares of
Series A Junior Preferred Stock shall be adjusted by multiplying such amount
by a fraction, the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to
such event.

          Section 8.  NO REDEMPTION.  The shares of Series A Junior Preferred
Stock shall not be redeemable.

          Section 9.  RANK.  The Series A Junior Preferred Stock shall rank,
with respect to the payment of dividends and the distribution of assets,
junior to all series of any other class of the Corporation's Preferred Stock.

          Section 10. AMENDMENT.  The Certificate of Incorporation of the
Corporation shall not be amended in any manner which would materially alter
or change the powers, preferences or special rights of the Series A Junior
Preferred Stock so as to affect them adversely without the affirmative vote
of the holders of at least two-thirds of the outstanding shares of Series A
Junior Preferred Stock, voting together as a single class.

          IN WITNESS WHEREOF, this Certificate of Designations is executed on
behalf of the Corporation by its Chairman and attested by its Secretary
this ____ day of December, 1988.

                                   _________________________
                                   Chairman

Attest:

________________________
Secretary

<PAGE>

                                                                     EXHIBIT B
                                                                     ---------

                           Form of Right Certificate

Certificate No. R-                                          __________  Rights

NOT EXERCISABLE AFTER JANUARY 4, 1999 OR EARLIER IF REDEMPTION OR EXCHANGE
OCCURS.  THE RIGHTS ARE SUBJECT TO REDEMPTION AT $.01 PER RIGHT AND TO
EXCHANGE ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT

                                Right Certificate

                             FIRST BANK SYSTEM, INC.

          This certifies that ______, or registered assigns, is the registered
owner of the number of Rights set forth above, each of which entitles the
owner thereof, subject to the terms, provisions and conditions of the Rights
Agreement, dated as of December 21, 1988 (the "Rights Agreement"), between
First Bank System, Inc., a Delaware corporation (the "Company"), and Morgan
Shareholder Services Trust Company (the "Rights Agent"), to purchase from the
Company at any time after the Distribution Date (as such term is defined in
the Rights Agreement) and prior to 5:00 P.M., New York City time, on January
4, 1999 at the principal office of the Rights Agent, or at the office of its
successor as Rights Agent, one one-hundredth of a fully paid non-assessable
share of Series A Junior Participating Preferred Stock, par value  $1.00 (the
"Preferred Shares"), of the Company, at a purchase price of $___ (the "Purchase
Price"), upon presentation and surrender of this Right Certificate with the
Form of Election to Purchase duly executed. The number of Rights evidenced by
this Right Certificate (and the number of one one-hundredths of a Preferred
Share which may be purchased upon exercise hereof) set forth above, and the
Purchase Price set forth above, are the number and Purchase Price as of _______,
19__, based on the Preferred Shares as constituted at such date.  As provided in
the Rights Agreement, the Purchase Price and the number of one one-hundredths
of a Preferred Share which may be purchased upon the exercise of the Rights
evidenced by this Right Certificate are subject to modification and
adjustment upon the happening of certain events.

          This Right Certificate is subject to all of the terms, provisions
and conditions of the Rights Agreement, which terms, provisions and
conditions are hereby incorporated herein by reference and made a part hereof
and to which Rights Agreement reference is hereby made for a full description
of the rights, limitations of rights, obligations, duties and immunities
hereunder of the Rights Agent, the Company and the holders of the Right
Certificates.  Copies of the Rights Agreement are on file at the principal
executive offices of the Company and the above-mentioned offices of the
Rights Agent.

<PAGE>

          This Right Certificate, with or without other Right Certificates,
upon surrender at the principal office of the Rights Agent, may be exchanged
for another Right Certificate or Right Certificates of like tenor and date
evidencing Rights entitling the holder to purchase a like aggregate number of
Preferred Shares as the Rights evidenced by the Right Certificate or Right
Certificates surrendered shall have entitled such holder to purchase.  If
this Right Certificate shall be exercised in part, the holder shall be
entitled to receive upon surrender hereof another Right Certificate or Right
Certificates for the number of whole Rights not exercised.

          Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Certificate (i) may be redeemed by the Company at a
redemption price of $.01 per Right or (ii) may be exchanged in whole or in
part for Preferred Shares, equivalent preferred shares of the Company or
shares of the Company's Common Stock, par value $1.25.

          No fractional Preferred Shares will be issued upon the exercise of
any Right or Rights evidenced hereby (other than fractions which are integral
multiples of one one-hundredth of a Preferred Share, which may, at the
election of the Company, be evidenced by scrip or depositary receipts), but
in lieu thereof a cash payment will be made, as provided in the Rights
Agreement.

          No holder of this Right Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of the Preferred
Shares or of any other securities of the Company which may at any time be
issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof, as such,
any of the rights of a stockholder of the Company or any right to vote for
the election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or
to receive notice of meetings or other actions affecting stockholders (except
as provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Right
Certificate shall have been exercised as provided in the Rights Agreement.

          This Right Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

<PAGE>

     WITNESS the facsimile signature of the proper officers of the Company
and its corporate seal.

Dated as of _____________, 19 __.

ATTEST:                                      FIRST BANK SYSTEM, INC.

Attest:

By ________________________                  By ________________________

   Its ____________________                     Its ____________________


Countersigned for purposes of
authentication only:


MORGAN SHAREHOLDER SERVICES
TRUST COMPANY


By ________________________

    Its ___________________


<PAGE>


                     Form of Reverse Side of Right Certificate

                                 FORM OF ASSIGNMENT
                                 ------------------

             (To be executed by the registered holder if such holder
                    desires to transfer the Right Certificate.)

          FOR VALUE RECEIVED _____________________ hereby sells, assigns and
transfers unto _____________________________________________________________
____________________________________________________________________________
              (Please print name and address of transferee)
____________________________________________________________________________
this Right Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint ______________ Attorney,
to transfer the within Right Certificate on the books of the within-named
Company, with full power of substitution.

Please insert social security
number, taxpayer identification
number or other identifying number


Dated: ______________, 19 __

                                                _________________________
                                                Signature

Signature Guaranteed:

     Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities
Dealers, Inc., or a commercial bank or trust company having an office or
correspondent in the United States.

- -----------------------------------------------------------------------------

    The undersigned hereby certifies that the Rights evidenced by this Right
Certificate are not beneficially owned by an Acquiring Person or an Affiliate
or Associate thereof (as defined in the Rights Agreement).

                                                _________________________
                                                Signature

- -----------------------------------------------------------------------------

<PAGE>

          Form of Reverse Side of Right Certificate -- continued

                         FORM OF ELECTION TO PURCHASE
                         ----------------------------

   (To be executed if holder desires to exercise the Right Certificate.)


To FIRST BANK SYSTEM, INC.:

          The undersigned hereby irrevocably elects to exercise __________
Rights represented by this Right Certificate to purchase the Preferred Shares
issuable upon the exercise of such Rights and requests that certificates for
such Preferred Shares be issued in the name of:

Please insert social security
number, taxpayer identification
number or other identifying number

_______________________________________________________________________________
                       (Please print name and address)
_______________________________________________________________________________

If such number of Rights shall not be all the Rights evidenced by this Right
Certificate, a new Right Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security,
taxpayer identification number
or other identifying number

______________________________________________________________________________
                        (Please print name and address)

Dated:     ___________, 19 __


                                                    _________________________
                                                    Signature

Signature Guaranteed:

     Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities
Dealers, Inc., or a commercial bank or trust company having an office or
correspondent in the United States.

<PAGE>

            Form of Reverse Side of Right Certificate -- continued

- ------------------------------------------------------------------------------

          The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).

                                                 _________________________
                                                 Signature

- -------------------------------------------------------------------------------

                                    NOTICE

          The signature in the foregoing Forms of Assignment and Election
must conform to the name as written upon the face of this Right Certificate
in every particular, without alteration or enlargement or any change
whatsoever.

          In the event the certification set forth above in the Form of
Assignment or the Form of Election to Purchase, as the case may be, is not
completed, the Company and the Rights Agent will deem the beneficial owner of
the Rights evidenced by this Right Certificate to be an Acquiring Person or
an Affiliate or Associate thereof (as defined in the Rights Agreement) and
such Assignment or Election to Purchase will not be honored.


<PAGE>

                                                                    EXHIBIT C
                                                                    ---------

                               SUMMARY OF RIGHTS TO PURCHASE
                                     PREFERRED SHARES

          On December 21, 1988, the Board of Directors of First Bank System,
lnc. (the "Company") declared a dividend of one preferred share purchase
right (a "Right") for each outstanding share of common stock, par value $1.25
(the "Common Shares"), of the Company.  The dividend is payable on January
4, 1989 (the "Record Date") to the stockholders of record on that date.  Each
Right entitles the registered holder to purchase from the Company one
one-hundredth of a share of Series A Junior Participating Preferred Stock,
par value $1.00 (the "Preferred Shares"), of the Company at a price of $80.00
(the "Purchase Price"), subject to adjustment.  The description and terms of
the Rights are set forth in a Rights Agreement dated as of December 21, 1988
(the "Rights Agreement") between the Company and Morgan Shareholder Services
Trust Company, as Rights Agent (the "Rights Agent").

          Until the earlier to occur of (i) 10 days following a public
announcement that a person or group of affiliated or associated persons (an
"Acquiring Person") have acquired beneficial ownership of 20% or more of the
outstanding Common Shares or (ii) 10 days (or such later date as may be
determined by action of the Board of Directors prior to such time as any
person becomes an Acquiring Person) following the commencement of, or
announcement of an intention to make, a tender offer or exchange offer the
consummation of which would result in the beneficial ownership by a person or
group of 20% or more of such outstanding Common Shares (the earlier of such
dates being called the "Distribution Date"), the Rights will be evidenced,
with respect to any of the Common Share certificates outstanding as of the
Record Date, by such Common Share certificate.

          The Rights Agreement provides that, until the Distribution Date,
the Rights will be transferred with and only with the Common Shares.  Until
the Distribution Date (or earlier redemption, exchange or expiration of the
Rights), new Common Share certificates issued after the Record Date, upon
transfer or new issuance of Common Shares, will contain a notation
incorporating the Rights Agreement by reference.  Until the Distribution Date
(or earlier redemption, exchange or expiration of the Rights), the surrender
for transfer of any certificates for Common Shares outstanding as of the
Record Date (even without such notation), will also constitute the transfer
of the Rights associated with the Common Shares represented by such
certificate.  As soon as practicable following the Distribution Date,
separate certificates evidencing the Rights ("Right Certificates") will be
mailed to holders of record of the Common Shares as of the close of business
on the Distribution Date and such separate Right Certificates alone will
evidence the Rights.

<PAGE>

          The Rights are not exercisable until the Distribution Date.  The
Rights will expire on January 4, 1999 (the "Final Expiration Date"), unless
the Rights are earlier redeemed or exchanged by the Company, in each case, as
described below.

          The Purchase Price payable, and the number of Preferred Shares or
other securities or property issuable, upon exercise of the Rights are
subject to adjustment from time to time to prevent dilution (i) in the event
of a stock dividend on, or a subdivision, combination or reclassification of,
the Preferred Shares, (ii) upon the grant to holders of the Preferred Shares
of certain rights or warrants to subscribe for or Purchase Preferred Shares
at a price, or securities convertible into Preferred Shares with a conversion
price, less than the then current market price of the Preferred Shares or
(iii) upon the distribution to holders of the Preferred Shares of evidences
of indebtedness or assets (excluding regular periodic cash dividends paid out
of earnings or retained earnings or dividends payable in Preferred Shares) or
of subscription rights or warrants (other than those referred to above).

          The number of outstanding Rights and the number of one
one-hundredths of a Preferred Share issuable upon exercise of each Right are
also subject to adjustment in the event of a stock split of the Common Shares
or a stock dividend on the Common Shares payable in Common Shares or
subdivisions, consolidations or combinations of the Common Shares occurring,
in any such case, prior to the Distribution Date.

          Preferred Shares purchasable upon exercise of the Rights will not
be redeemable.  Each Preferred Share will be entitled to a minimum
preferential quarterly dividend payment of $1.00 per share but will be
entitled to an aggregate dividend of 100 times the dividend declared per
Common Share. In the event of liquidation, the holders of the Preferred
Shares will be entitled to a minimum preferential liquidation payment of $100
per share but will be entitled to an aggregate payment of 100 times the
payment made per Common Share. Each Preferred Share will have 100 votes,
voting together with the Common Shares.  Finally, in the event of any merger,
consolidation or other transaction in which Common Shares are exchanged, each
Preferred Share will be entitled to receive 100 times the amount received per
Common Share.  These rights are protected by customary antidilution
provisions.

          Because of the nature of the Preferred Shares' dividend,
liquidation and voting rights, the value of the one one-hundredth interest in
a Preferred Share purchasable upon exercise of each Right should approximate
the value of one Common Share.

          In the event that any person or group of affiliated or associated
persons becomes the beneficial owner of 20% or more of the outstanding Common
Shares, proper provision shall be made so that each holder of a Right, other
than any person

<PAGE>

or group of affiliated or associated persons beneficially owning 20% or more
of the outstanding Common Shares (whose Rights will thereafter be void) will
thereafter have the right to receive upon exercise that number of Common
Shares having a market value of two times the exercise price of the Right
(or, at the option of the Company, an equivalent number of one one-hundredths
of a Preferred Share).

          In the event that the Company is acquired in a merger or other
business combination transaction or 50% or more of its consolidated assets or
earning power are sold, proper provision will be made so that each holder of
a Right will thereafter have the right to receive, upon the exercise thereof
at the then current exercise price of the Right, that number of shares of
common stock of the acquiring company which at the time of such transaction
will have a market value of two times the exercise price of the Right.

          At any time after the acquisition by a person or group of
affiliated or associated persons of beneficial ownership of 20% or more of
the outstanding Common Shares and prior to the acquisition by any person or
group of affiliated or associated persons of 50% or more of the outstanding
Common Shares, the Board of Directors of the Company may exchange the
outstanding Rights (which does not include Rights owned by any person or
group which have become void), in whole or in part, for Common Shares or
Preferred Shares (or shares of any other class or series of the Company's
preferred stock having equivalent rights, preferences and privileges) at an
exchange ratio of one Common Share, or one one-hundredth of a Preferred
Share, per Right (subject to adjustment).

          With certain exceptions, no adjustment in the Purchase Price will
be required until cumulative adjustments require an adjustment of at least 1%
in such Purchase Price.  No fractional Preferred Shares will be issued (other
than fractions which are integral multiples of one one-hundredth of a
Preferred Share, which may, at the election of the Company, be evidenced by
scrip or depositary receipts) and in lieu thereof, an adjustment in cash will
be made based on the market price of the Preferred Shares on the last trading
day prior to the date of exercise.

          At any time prior to the acquisition by a person or group of
affiliated or associated persons of beneficial ownership of 20% or more of
the outstanding Common Shares, the Board of Directors of the Company may
redeem the Rights in whole, but not in part, at a price of $.01 per Right
(the "Redemption Price").  The redemption of the Rights may be made effective
at such time on such basis and with such conditions as the Board of Directors
in its sole discretion may establish.  Immediately upon any redemption of the
Rights, the right to exercise the Rights will terminate and the only right of
the holders of Rights will be to receive the Redemption Price.

          The terms of the Rights may be amended by the Board of Directors of
the Company without the consent of the holders of the Rights (including
amending the Rights to lower the 20% triggering thresholds described above to
not less than

<PAGE>

the greater of (i) any percentage greater than the largest percentage of the
outstanding Common Shares then known to the Company to be beneficially owned
by any person or group of affiliated or associated persons and (ii) 10%),
except that, from and after such time as any person or group of affiliated or
associated persons becomes the beneficial owner of 20% (or any lesser
threshold previously established by the Board) of the outstanding Common
Shares, no such amendment may adversely affect the interests of the holders
of the Rights.

          Until a Right is exercised, the holder thereof, as such, will have
no rights as a stockholder of the Company, including, without limitation, the
right to vote or to receive dividends.

          A copy of the Rights Agreement has been filed with the Securities
and Exchange Commission as an Exhibit to a Registration Statement on Form
8-A dated December 21, 1988.  A copy of the Rights Agreement is available free
of charge from the Company.  This summary description of the Rights does not
purport to be complete and is qualified in its entirety by reference to the
Rights Agreement, which is hereby incorporated herein by reference.

<PAGE>


                       AMENDMENT NO. 1 TO RIGHTS AGREEMENT

     AMENDMENT NO. 1 dated as of May 30, 1990, to the Rights Agreement, dated
as of December 21, 1988 (the "Rights Agreement"), between First Bank System,
Inc., a Delaware corporation (the "Company"), and First Chicago Trust Company
of New York, a New York trust company, as Rights Agent (the "Rights Agent").

     WITNESSETH:

          WHEREAS, the Company and the Rights Agent entered into the Rights
Agreement specifying the terms of the Rights (as defined therein); and

          WHEREAS, Section 27 of the Rights Agreement provides in relevant
part as follows:

          "Section 27.  SUPPLEMENTS AND AMENDMENTS.  The Company may from
     time to time supplement or amend this Agreement without the approval of any
     holders of Right Certificates in order .... to make any other provisions
     with respect to the Rights which the Company may deem necessary or
     desirable, any such supplement or amendment to be evidenced by a writing
     signed by the Company and the Rights Agent ... "; and       .

          WHEREAS, pursuant to certain Stock Purchase Agreements, each dated
May 30, 1990, one such agreement (the "Corporate Partners Purchase
Agreement"), being among Corporate Partners, L.P., Corporate Offshore
Partners, L.P. and The State Board of Administration of Florida (the "State
Board"), solely in its capacity as a managed account and not in its
individual capacity, as purchasers (collectively, the "Purchasers"),
Corporate Advisors, L.P., and the Company, and a second such agreement (the
"State Board Purchase Agreement") being between the State Board in its
individual capacity and the Company, pursuant to which the Company has agreed
to sell, and the Purchasers have agreed to purchase, a number of shares of
the Company's common stock and certain other securities of the Company; and

          WHEREAS, it is a condition to the transactions contemplated by the
Corporate Partners Purchase Agreement and the State Board Purchase Agreement
that the Rights Agreement be amended as hereinafter provided; and

          WHEREAS, all acts and things necessary to constitute this Amendment
as a valid agreement according to its terms, have been done and performed,
and the execution and signing by the Company and the Rights Agent of this
Amendment have in each and all respects been duly authorized by the Company
and the Rights Agent;

<PAGE>

          NOW, THEREFORE, in consideration of the promises and mutual
agreements set forth in the Rights Agreement and this Amendment, the parties
hereby agree as follows:

          1.   Section 1(a) of the Rights Agreement (which defines an
"Acquiring Person" for purposes of the Rights Agreement) is hereby amended by
deleting the first sentence thereof and inserting the following in place
thereof:

               "(a)  "Acquiring Person" shall mean any Person (as such term as
     hereinafter defined) who or which, together with all Affiliates and
     Associates (as such terms are hereinafter defined) of such Person, shall
     be the Beneficial Owner (as such term is hereinafter defined) of 20% or
     more of the Common Shares of the Company then outstanding, but shall not
     include (i) the Company, any Subsidiary (as such term is hereinafter
     defined) of the Company, any employee benefit plan of the Company or any
     Subsidiary of the Company, or any entity holding Common Shares for or
     pursuant to the terms of any such plan, (ii) either of the Corporate
     Partnerships or Corporate Advisors (as such terms are hereinafter defined)
     or any of their respective Affiliates or Associates, provided that none of
     the Corporate Partnerships or Corporate Advisors are then in breach of the
     covenant set forth in section 5.02 of the Corporate Partners Purchase
     Agreement (as such term is hereinafter defined) and in receipt of a written
     notice from the Company asserting such a breach or (iii) the State Board
     (as such term is hereinafter defined) or any of its Affiliates or
     Associates, provided that the State Board is not then in breach of its
     covenant set forth in section 5.01 of the State Board Purchase Agreement
     (as such term is hereinafter defined) and in receipt of a written notice
     from the Company asserting such a breach.

          2.   The following terms are hereby added to Section 1 of the
Rights Agreement at the end thereof as additional terms defined thereby for
purposes of the Rights Agreement:

               "(n)  "Corporate Advisors" shall mean Corporate Advisors, L.P., a
     Delaware limited partnership.

               (o)   "Corporate Partners Purchase Agreement" shall mean the
     Stock Purchase Agreement, dated as of May 30, 1990 among each of the
     Corporate Partnerships, the State Board (solely in its capacity as a
     managed account and not in its individual capacity), Corporate Advisors
     and the Company.

               (p)   "Corporate Partnerships" shall mean Corporate Partners,
     L.P., a Delaware limited partnership, and Corporate Offshore Partners,
     L.P., a


                                         -2-

<PAGE>

    Bermuda limited partnership, and "Corporate Partnership" shall mean either
    of such Persons.

               (q)  "State Board" shall mean The State Board of Administration
     of Florida, a body corporate organized under the constitution of the State
     of Florida.

               (r)   "State Board Purchase Agreement" shall mean the Stock
     Purchase Agreement, dated as of May 30, 1990 between the State Board in its
     individual capacity and the Company.

          3.   Except as amended by this Amendment No. 1 to the Rights
Agreement, the Rights Agreement shall continue in full force and effect, and
the Company and the Rights Agent hereby ratify and confirm the Rights
Agreement as so amended hereby.


                                    -3-

<PAGE>


          IN WITNESS WHEREOF, the parties hereto have caused this Amendment
No. 1 to the Rights Agreement to be duly executed and attested, all as of the
day and year first above written.

                                           FIRST BANK SYSTEM, INC.



                                           By: /s/ Michael J. O'Rourke
                                               --------------------------------
                                               Name:
                                               Title:  Sr. Vice President


Attest:


By:  /s/ Ann Underbrink
     ----------------------------
Name:
Title:  Assistant Secretary

                                           FIRST CHICAGO TRUST
                                             COMPANY OF NEW YORK

                                           By: /s/ S. Russo
                                               --------------------------------
                                               Name:  Sal Russo
                                               Title:  Assistant Vice President


Attest:


By: /s/ Joanne Gorostiola
    ------------------------------
Name:  Joanne Gorostiola
Title:  Customer Service Officer


                                          -4-

<PAGE>

                              AMENDMENT NO. 2
                                    TO
                             RIGHTS AGREEMENT
                             ----------------

          This Amendment No. 2 to Rights Agreement, dated as of February 17,
1993, between First Bank System, Inc., a Delaware corporation (the
"Company"), and First Chicago Trust Company of New York (formerly Morgan
Shareholder Services Trust Company), as Rights Agent (the "Rights Agent").

                                WITNESSETH:

          WHEREAS, the Company and the Rights Agent have previously entered
into a Rights Agreement, dated as of December 21,1988 (the "Rights
Agreement"), to specify the terms of the Rights (as defined therein), and
have previously entered into Amendment No. 1 thereto dated as of May 30,
1990; and

          WHEREAS, the Company now deems it desirable to amend the Rights
Agreement pursuant to the provisions of Section 27 of the Rights Agreement to
make certain modifications to the Rights Agreement, upon the terms and
conditions hereinafter set forth.

          NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

          1.   Section 7(a) of the Rights Agreement is hereby amended to read in
     its entirety as follows:

          "(a) The registered holder of any Right Certificate may exercise the
     Rights evidenced thereby (except as otherwise provided herein) in whole or
     in part at any time after the Distribution Date upon surrender of the Right
     Certificate, with the form of election to purchase on the reverse side
     thereof duly executed, to the Rights Agent at the principal stock transfer
     office of the Rights Agent, together with payment of the Purchase Price
     for each one one-hundredth of a Preferred Share (or such other number of
     Preferred Shares, Common Shares or equivalent preferred shares as shall
     then be issuable upon exercise of such Right as provided in Sections 11
     and 13 hereof) as to which the Rights are exercised, at or prior to the
     earliest of (i) the earlier of (A) the date which is 24 months after the
     first date upon which the Company can generally be acquired by bank
     holding companies, and the Company is generally permitted to acquire banks,
     principally located in at least fifteen of the twenty states which as of
     September 30,1992 had the largest amount of bank deposits (which states are
     listed on Exhibit D hereto) or (B) the close of business on January 4, 1999
     (the earlier of such dates being hereinafter referred to as the "Final
     Expiration Date"), (ii) the time at which the Rights are redeemed as
     provided in Section 23 hereof (the "Redemption Date"), or

<PAGE>

     (iii) the time at which such Rights are exchanged as provided in Section 24
     hereof (the "Exchange Date")."

          2.   Section 25 of the Rights Agreement is hereby amended by adding
     subsection (c) thereto as follows:

          "(c) The Company shall, as soon as practicable after the occurrence of
     the first date upon which the Company can generally be acquired by bank
     holding companies, and the Company is generally permitted to acquire banks,
     principally located in at least 15 of the 20 states listed in Exhibit D
     hereto, give to the Rights Agent and (if the Distribution Date shall have
     occurred) to each holder of a Right Certificate, in accordance with
     Section 26 hereof, a notice of the occurrence of such date, which notice
     shall specify the date which is 24 months after such first date for
     purposes of determining the Final Expiration Date."

          3.   The "Form of Right Certificate" which constitutes Exhibit B to
     the Rights Agreement is hereby amended to read in its entirety as set
     forth in Annex I hereto.

          4.   The Rights Agreement is hereby amended by adding Exhibit D
     thereto as set forth in Annex II hereto.

          5.   All other provisions of the Rights Agreement will remain in full
     force and effect as set forth in the Rights Agreement and are not affected
     in any way by this Amendment No. 2 to Rights Agreement.


                                       -2-

<PAGE>


          IN WITNESS WHEREOF, the parties hereto have caused this Amendment
No. 2 to Rights Agreement to be duly executed and attested, all as of the day
and year first above written.

                                              FIRST BANK SYSTEM, INC.


                                              By         /s/ R. Zona
                                                 -----------------------------
                                                 Its
                                                     -------------------------
Attest:

By   /s/ Michael J. O'Rourke
   ----------------------------
   Its  Secretary
       ------------------------


                                              FIRST CHICAGO TRUST COMPANY
                                                 OF NEW YORK


                                              By        /s/ John Baumbach
                                                 -----------------------------
                                                 Its       Vice President
                                                     -------------------------

Attest:

By  /s/ Joanne Gorostiola
   ------------------------------
   Its  Customer Service Officer
       --------------------------



                                           -3-

<PAGE>

              ANNEX I TO AMENDMENT NO. 2 TO RIGHTS AGREEMENT
              ----------------------------------------------

                                                                  EXHIBIT B
                                                                  ---------

                         Form of Right Certificate

Certificate No. R-                                              ____ Rights


NOT EXERCISABLE AFTER THE EARLIER OF (A) THE DATE WHICH IS 24 MONTHS AFTER
THE FIRST DATE UPON WHICH THE COMPANY CAN BE ACQUIRED BY BANK HOLDING
COMPANIES, AND THE COMPANY IS GENERALLY PERMITTED TO ACQUIRE BANKS,
PRINCIPALLY LOCATED IN AT LEAST 15 OF THE 20 STATES LISTED ON EXHIBIT D TO
THE RIGHTS AGREEMENT OR (B) JANUARY 4, 1999 (THE EARLIER OF SUCH DATES BEING
HEREINAFTER REFERRED TO AS THE "FINAL EXPIRATION DATE") OR EARLIER IF
REDEMPTION OR EXCHANGE OCCURS.  THE RIGHTS ARE SUBJECT TO REDEMPTION AT $.01
PER RIGHT AND TO EXCHANGE ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT.

                            Right Certificate

                         FIRST BANK SYSTEM, INC.

          This certifies that ____________, or registered assigns, is the
registered owner of the number of Rights set forth above, each of which
entitles the owner thereof, subject to the terms, provisions and conditions
of the Rights Agreement, as amended (the "Rights Agreement"), between First
Bank System, Inc., a Delaware corporation (the "Company"), and First Chicago
Trust Company of New York, as Rights Agent (the "Rights Agent"), to purchase
from the Company at any time after the Distribution Date (as such term is
defined in the Rights Agreement) and prior to 5:00 p.m., New York City time,
on the Final Expiration Date at the principal stock transfer office of the
Rights Agent, or at the office of its successor as Rights Agent, one
one-hundredth of a fully paid non-assessable share of Series A Junior
Participating Preferred Stock, without par value (the "Preferred Shares"), of
the Company, at a purchase price of $__________ per one one-hundredth of a
Preferred Share (the "Purchase Price"), upon presentation and surrender of
this Right Certificate with the Form of Election to Purchase duly executed.
The number of Rights evidenced by this Right Certificate (and the number of
one one-hundredth of a Preferred Share which may be purchased upon exercise
hereof) set forth above, and the Purchase Price set forth above, are the
number and Purchase Price as of __________, 19__, based on the Preferred Shares
as constituted at such date.  As provided in the Rights Agreement, the
Purchase Price and the number of one one-hundredth of a Preferred Share which
may be purchased upon the exercise of the


                                       B-1

<PAGE>

Rights evidenced by this Right Certificate are subject to modification and
adjustment upon the happening of certain events.

          This Right Certificate is subject to all of the terms, provisions
and conditions of the Rights Agreement, which terms, provisions and
conditions are hereby incorporated herein by reference and made a part hereof
and to which Rights Agreement reference is hereby made for a full description
of the rights, limitations of rights, obligations, duties and immunities
hereunder of the Rights Agent, the Company and the holders of the Right
Certificates.  Copies of the Rights Agreement are on file at the principal
executive offices of the Company and the above-mentioned offices of the
Rights Agent.

          This Right Certificate, with or without other Right Certificates,
upon surrender at the principal corporate trust office of the Rights Agent,
may be exchanged for another Right Certificate or Right Certificates of like
tenor and date evidencing Rights entitling the holder to purchase a like
aggregate number of Preferred Shares as the Rights evidenced by the Right
Certificate or Right Certificates surrendered shall have entitled such holder
to purchase.  If this Right Certificate shall be exercised in part, the
holder shall be entitled to receive upon surrender hereof another Right
Certificate or Right Certificates for the number of whole Rights not
exercised.

          Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Certificate (i) may be redeemed by the Company at a
redemption price of $.01 per Right or (ii) may be exchanged in whole or in
part for Preferred Shares, equivalent preferred shares of the Company or
shares of the Company's Common Stock, par value $1.25.

          No fractional Preferred Shares will be issued upon the exercise of
any Right or Rights evidenced hereby (other than fractions which are integral
multiples of one one-hundredth of a Preferred Share, which may, at the
election of the Company, be evidenced by scrip or depositary receipts), but
in lieu thereof a cash payment will be made, as provided in the Rights
Agreement.

          No holder of this Right Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of the Preferred
Shares or of any other securities of the Company which may at any time be
issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof, as such,
any of the rights of a stockholder of the Company or any right to vote for
the election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or
to receive notice of meetings or other actions affecting stockholders (except
as provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced


                                   B-2

<PAGE>

by this Right Certificate shall have been exercised as provided in the Rights
Agreement.

          This Right Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

          WITNESS the facsimile signature of the proper officers of the
Company and its corporate seal.  Dated as of __________, 19_.

                                   FIRST BANK SYSTEM, INC.


                                   By
                                      ------------------------------
                                      Its
                                          ---------------------------

Attest:

By
   ---------------------------
   Its
       -----------------------



Countersigned for purposes
of authentication only:

FIRST CHICAGO TRUST COMPANY
OF NEW YORK

By
   ---------------------------
   Its
       -----------------------


                                        B-3

<PAGE>


                      Form of Reverse Side of Right Certificate

                                FORM OF ASSIGNMENT

                 (To be executed by the registered holder if such
                holder desires to transfer the Right Certificate.)


          FOR VALUE RECEIVED _________________________________________________
hereby sells, assigns and transfers unto______________________________________

______________________________________________________________________________
                (Please print name and address of transferee)

this Right Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint __________________
Attorney, to transfer the within Right Certificate on the books of the
within-named Company, with full power of substitution.

Please insert social security number,
taxpayer identification number or
other identifying number

Dated:_____________, 19_

                                                          ____________________
                                                          Signature

Signature Guaranteed:

          Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of
Securities Dealers, Inc., or a commercial bank or trust company having an
office or correspondent in the United States.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

          The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).

                                                          ____________________
                                                          Signature

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


                                     B-4

<PAGE>

          Form of Reverse Side of Right Certificate -- continued

                       FORM OF ELECTION TO PURCHASE

                   (To be executed if holder desires to
                     exercise the Right Certificate.)

To FIRST BANK SYSTEM, INC.:

          The undersigned hereby irrevocably elects to exercise __________
Rights represented by this Right Certificate to purchase the Preferred Shares
issuable upon the exercise of such Rights and requests that certificates for
such Preferred Shares be issued in the name of:

Please insert social security number,
taxpayer identification number or
other identifying number

______________________________________________________________________________
                     (Please print name and address)
______________________________________________________________________________

If such number of Rights shall not be all the Rights evidenced by this Right
Certificate, a new Right Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security number,
taxpayer identification number or
other identifying number

______________________________________________________________________________
                     (Please print name and address)
______________________________________________________________________________

Dated:  __________, 19_
                                                     _________________________
                                                     Signature
Signature Guaranteed:

          Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of
Securities Dealers, Inc., or a commercial bank or trust company having an
office or correspondent in the United States.


                                      B-5

<PAGE>


           Form of Reverse Side of Right Certificate -- continued

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

     The undersigned hereby certifies that the Rights evidenced by this Right
Certificate are not beneficially owned by an Acquiring Person or an Affiliate
or Associate thereof (as defined in the Rights Agreement).

                                                    __________________________
                                                    Signature

 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

NOTICE

          The signature in the foregoing Forms of Assignment and Election
must conform to the name as written upon the face of this Right Certificate
in every particular, without alteration or enlargement or any change
whatsoever.

          In the event the certification set forth above in the Form of
Assignment or the Form of Election to Purchase, as the case may be, is not
completed, the Company and the Rights Agent will deem the beneficial owner of
the Rights evidenced by this Right Certificate to be an Acquiring Person or
an Affiliate or Associate thereof (as defined in the Rights Agreement) and
such Assignment or Election to Purchase will not be honored.


                                     B-6

<PAGE>

              ANNEX II TO AMENDMENT NO. 2 TO RIGHTS AGREEMENT

                                                                  EXHIBIT D
                                                                  ---------

List of States
- --------------

1.   New York

2.   California

3.   Illinois

4.   Pennsylvania

5.   Texas

6.   Florida

7.   Massachusetts

8.   New Jersey

9.   Ohio

10.  Michigan

11.  North Carolina

12.  Virginia

13.  Georgia

14.  Missouri

15.  Connecticut

16.  Indiana

17.  Minnesota

18.  Maryland

19.  Tennessee

20.  Washington


                                          D-1

<PAGE>


                                 AMENDMENT NO. 3
                                        TO
                                 RIGHTS AGREEMENT

          Amendment No. 3 to Rights Agreement, dated November 9, 1995, to
Rights Agreement, dated as of December 21, 1988 (as amended by Amendment No.
1, dated as of May 30, 1990, and by Amendment No. 2, dated as of February 17,
1993, the "Rights Agreement"), between First Bank System, Inc., a Delaware
corporation (the "Company"), and First Chicago Trust Company of New York
(formerly Morgan Shareholder Services Trust Company) (the "Rights Agent")
(all terms not otherwise defined herein shall have the meanings ascribed to
them in the Rights Agreement).

                                   WITNESSETH:

          WHEREAS, the Company and the Rights Agent have previously entered
into the Rights Agreement specifying the terms of the Rights;

          WHEREAS, Section 27 of the Rights Agreement provides that the
Company may from time to time amend the Rights Agreement to make any
provisions with respect to the Rights which the Company may deem necessary or
desirable, any such amendment to be evidenced by a writing signed by the
Company and the Rights Agent;

          WHEREAS, the Company, First Interstate Bancorp, a Delaware
corporation ("First Interstate"), and Eleven Acquisition Corp., a Delaware
corporation and wholly-owned subsidiary of the Company ("Eleven"), have
entered into an Agreement and Plan of Merger, dated as of November 5, 1995
(the "Merger Agreement"), pursuant to which Eleven would merge with and into
First Interstate, with First Interstate as the surviving corporation in the
merger;

          WHEREAS, in connection with the Merger Agreement the Company and
First Interstate have entered into a Stock Option Agreement, dated November
5, 1995 (the "Parent Stock Option Agreement"), pursuant to which the Company
has granted to First Interstate an option (the "Parent Stock Option") to
purchase certain shares of the Company's Common Stock under certain
circumstances and upon certain terms and conditions;

          WHEREAS, the Parent Stock Option Agreement provides that in no
event shall (i) the number of shares of Common Stock for which the Parent
Stock Option is then exercisable, plus (ii) the number of Option Shares (as
defined in the Parent Stock Option Agreement) theretofore purchased
thereunder, plus (iii) the number of other shares of Common Stock of which
First Interstate is the Beneficial Owner exceed 19.9% of the issued and
outstanding shares of Common Stock of the Company (computed in accordance
with the procedures set forth in the Rights Agreement) until after such time
as the Rights Agreement is amended to provide that neither the execution of
the Parent Stock Option Agreement or the Merger Agreement


<PAGE>

nor the exercise of the Parent Stock Option shall result in First Interstate
becoming an Acquiring Person;

          WHEREAS, as a result neither First Interstate nor any other Person
has become an Acquiring Person;

          WHEREAS, in the Parent Stock Option Agreement the Company agreed
promptly to take all steps necessary to enter into such an amendment to the
Rights Agreement with the Rights Agent; and

          WHEREAS, the Board of Directors of the Company has duly approved
amending the Rights Agreement to contain the terms and conditions hereinafter
set forth.

          NOW, THEREFORE, in consideration of the premises and the mutual
agreements set forth herein, the parties hereby agree as follows:

          1.   AMENDMENT TO SECTION 1(a).  Section 1(a) of the Rights
Agreement is hereby amended by replacing "or" before clause (iii) with ","
and by adding the following to the end of the first sentence thereof:

     "or (iv) any First Interstate Party, but only if and for so long as (A)
     First Interstate is in compliance with all material terms, conditions and
     obligations imposed upon it by the Merger Agreement and the Parent
     Stock Option Agreement and (B) no First Interstate Party is the Beneficial
     Owner of any Common Shares of the Company then outstanding other
     than: (u) Common Shares of the Company of which any First Interstate
     Party is or becomes the Beneficial Owner by reason of the approval,
     execution or delivery of the Merger Agreement or the Parent Stock Option
     Agreement or by reason of the consummation of any transaction
     contemplated in the Merger Agreement, the Parent Stock Option
     Agreement or both; (v) Common Shares of the Company of which any
     First Interstate Party is the Beneficial Owner on the date hereof;
     (w) Common Shares of the Company of which any First Interstate Party
     becomes the Beneficial Owner after the date hereof; PROVIDED, that the
     aggregate number of Common Shares of the Company which may be
     Beneficially Owned by the First Interstate Parties pursuant to this clause
     (w) shall not exceed 5% of the Common Shares of the Company
     outstanding; (x) Common Shares of the Company acquired in satisfaction
     of debts contracted prior to the date hereof by any First Interstate Party
     in good faith in the ordinary course of such First Interstate Party's
     banking business; (y) Common Shares of the Company held by any First
     Interstate Party in a BONA FIDE fiduciary or depository capacity; and
     (z) Common Shares of the Company owned in the ordinary course of business
     by either (A) an investment


                                          -2-
<PAGE>

     company registered under the Investment Company Act of 1940, as amended,
     or (B) an investment account, for either of which any First Interstate
     Party acts as investment advisor."

          2.   ADDITIONS TO SECTION 1.  The following terms are hereby added
to Section 1 of the Rights Agreement as additional defined terms under the
Rights Agreement:

          "(s) "First Interstate" shall mean First Interstate Bancorp, a
     Delaware corporation.

          (t)  "First Interstate Parties" shall mean, collectively, First
     Interstate and its Affiliates and Associates.  "First Interstate Party"
     shall have a correlative meaning.

          (u)  "Merger Agreement" shall mean the Plan and Agreement of
     Merger, dated as of November 5, 1995, by and among the Company,
     Eleven Acquisition Corp., a Delaware corporation and wholly-owned
     subsidiary of the Company, and First Interstate, as the same may be
     amended from time to time.

          (v)  "Parent Stock Option Agreement" shall mean the Stock
     Option Agreement, dated November 5, 1995, between First Interstate, as
     grantee, and the Company, as issuer, as the same may be amended from
     time to time."

          3.   OTHER PROVISIONS.  The other provisions of the Rights
Agreement shall continue in full force and effect as set forth in the Rights
Agreement and are not affected in any way by this Amendment No. 3.


                                      -3-

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment
No. 3 to be duly executed and attested on the day and year first set forth
above.

                                        FIRST BANK SYSTEM, INC.


                                        By:  /s/ David J. Parrin
                                             --------------------------------
                                             Name: David J. Parrin
                                             Title: Senior Vice President &
                                                       Controller

Attest:


By:  /s/ Howell D. McCullough
     ------------------------------
     Name: Howell D. McCullough
     Title: Senior Vice President


                                        FIRST CHICAGO TRUST COMPANY
                                           OF NEW YORK


                                        By:  /s/ Ralph Persico
                                            ---------------------------------
                                            Name: Ralph Persico
                                            Title: Customer Service Officer

Attest:


By: /s/ Al Diorio
    -------------------------------
    Name: Al Diorio
    Title: Assistant Vice President


                                        -4-


<PAGE>
                                                                    EXHIBIT 5.1


                    [Dorsey & Whitney P.L.L.P. Letterhead]

                                January 18, 1996


First Bank System, Inc.
601 Second Avenue South
Minneapolis, Minnesota 55402-4302

    Re:  Registration Statement on Form S-4

Ladies and Gentlemen:

    We have acted as counsel to First Bank System, Inc., a Delaware
corporation (the "Company"), in connection with a Registration Statement on
Form S-4 (the "Registration Statement") relating to shares of the Company's
common stock, $1.25 par value (the "Common Stock"), to be issued in
connection with the merger (the "Merger") of FirsTier Financial, Inc., a
Nebraska corporation, with and into the Company, as described in the Proxy
Statement/Prospectus (the "Proxy Statement/Prospectus") constituting part of
the Registration Statement.

    We have examined such documents and have reviewed such questions of law
as we have considered necessary and appropriate for the purposes of our
opinions set forth below.

    In rendering our opinions set forth below, we have assumed the
authenticity of all documents submitted to us as originals, the genuineness
of all signatures, and the conformity to authentic originals of all documents
submitted to us as copies. We have also assumed the legal capacity for all
purposes relevant hereto of all natural persons and, with respect to all
parties to agreements or instruments relevant hereto other than the Company,
that such parties had the requisite power and authority (corporate or
otherwise) to execute, deliver and perform such agreements or instruments,
that such agreements or instruments have been duly authorized by all
requisite action (corporate or otherwise), executed


<PAGE>

First Bank System, Inc.
January 18, 1996
Page 2


and delivered by such parties, and that such agreements or instruments are
the valid, binding and enforceable obligations of such parties. As to
questions of fact material to our opinions, we have relied upon certificates
of officers of the Company and of public officials.

    Based on the foregoing, we are of the opinion that the shares of the
Common Stock to be issued in connection with the Merger, when issued in
accordance with the terms of the Merger Agreement (as defined in the Proxy
Statement/Prospectus), will be duly authorized, validly issued, fully paid
and nonassessable.

    Our opinions expressed above are limited to the Delaware General
Corporation Law.

    We hereby consent to your filing of this opinion as an exhibit to the
Registration Statement, and to the reference to this firm under the heading
"Legal Opinions" in the Proxy Statement/Prospectus.

                                       Very truly yours,

                                       /s/ Dorsey & Whitney P.L.L.P.


PFC






<PAGE>

                                                                  Exhibit 8.1


                [Wachtell, Lipton, Rosen & Katz Letterhead]


                                       January 10, 1996



FirstTier Financial, Inc.
1700 Farnam Street
Omaha, Nebraska 68102



Ladies/Gentlemen:

     We have acted as special counsel to FirsTier Financial, Inc., a Nebraska
corporation ("FirsTier"), in connection with the proposed merger (the
"Merger") of FirsTier with and into First Bank System Inc., a Delaware
corporation ("FBS"), upon the terms and conditions set forth in the
Agreement of Merger and Consolidation (the "Agreement") dated as of August 6,
1995 by and between FBS and FirsTier. At your request, and pursuant to the
Agreement, we are rendering our opinion concerning the material federal
income tax consequences of the Merger.

     For purposes of the opinion set forth below, we have relied, with the
consent of FBS and the consent of FirsTier, upon the accuracy and
completeness of the statements and representations (which statements and
representations we have neither investigated nor verified) contained,
respectively, in the certificates of the officers of FBS and of FirsTier
(copies of which are attached hereto and which are incorporated herein by
reference), and we have assumed that such certificates will be complete and
accurate as of the Effective Time. Any capitalized term used and not defined
herein has the meaning given to it in the Proxy Statement-Prospectus of FBS
and FirsTier, as amended through the date hereof (the "Proxy
Statement-Prospectus").



<PAGE>


FirsTier Financial, Inc.
January 10, 1996
Page 2




     We have also assumed that the transactions contemplated by the Agreement
will be consummated in accordance with the Agreement and as described in the
Proxy Statement-Prospectus and that the Merger will qualify as a statutory
merger under the applicable laws of the States of Nebraska and Delaware.

     Based upon and subject to the foregoing, it is our opinion that, under
presently applicable law, the Merger will constitute a reorganization within
the meaning of Section 368(a) of the Internal Revenue Code of 1986, as
amended, and that accordingly the following will be all the material federal
income tax consequences of the Merger:

     (i)    No gain or loss will be recognized by the stockholders of
            FirsTier upon the conversion of their shares of FirsTier Common
            Stock into shares of FBS Common Stock pursuant to the terms of the
            Merger to the extent of such conversion.

     (ii)   The tax basis of the shares of FBS Common Stock into which shares
            of FirsTier Common Stock are converted pursuant to the Merger,
            including any fractional interest, will be the same as the basis of
            the shares of FirsTier Common Stock exchanged therefor.

     (iii)  The holding period for shares of FBS Common Stock, including any
            fractional interest, into which shares of FirsTier Common Stock
            are converted will include the period that such shares of FirsTier
            Common Stock were held by the holder, provided such shares were a
            capital asset of the holder.

     (iv)   The receipt of cash in lieu of the fractional share of FBS Common
            Stock will be treated as if an FirsTier shareholder were issued
            such stock and then had such stock redeemed, and will generally
            result in recognition of gain or loss equal to the difference
            between the amount of cash received and the holder's basis in the
            fractional share, as determined above. The gain or loss will be
            capital gain or loss if the FirsTier Common Stock were held as
            capital assets, and will be long-term capital gain or loss if the
            holding period for the fractional shares, as determined above, was
            more than one year.

     (v)    No gain or loss will be recognized by FBS or FirsTier solely as a
            result of the Merger.




<PAGE>


FirsTier Financial, Inc.
January 10, 1996
Page 3




     This opinion may not be appliable to FirsTier stockholders who received
their FirsTier Common Stock pursuant to the exercise of employee stock
options or otherwise as compensation or who are not citizens or residents of
the United States.

     We hereby consent to the filing of this opinion with the Securities and
Exchange Commission as an Exhibit to the Registration Statement on Form S-4
in respect of the shares of FBS Common Stock to be issued in connection with
the Merger, and to the reference to this opinion under the caption "Certain
Federal Income Tax Consequences to FirsTier Shareholders" and elsewhere in
the Proxy Statement-Prospectus included therein. In giving such consent, we
do not hereby admit that we are in the category of persons whose consent is
required under Section 7 of the Securities Act of 1933, as amended.



                                       Very truly yours,

                                       /s/ Wachtell, Lipton, Rosen & Katz










<PAGE>


                                                                Exhibit 23.3



                       CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-4) and related Prospectus of First Bank System,
Inc. for the registration of 16,950,057 shares of its common stock and to
the incorporation by reference therein of our report dated January 24, 1995,
with respect to the consolidated financial statements of First Bank System,
Inc. included in its Current Report on Form 8-K dated March 3, 1995, filed
with the Securities and Exchange Commission.



/s/ Ernst & Young LLP



Minneapolis, Minnesota
January 17, 1996



<PAGE>

                                                            Exhibit 23.4


                      CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-4) and related Prospectus of First Bank
System, Inc. for the registration of 16,950,057 shares of its common stock
and to the incorporation by reference therein of our report dated January 16,
1995, with respect to the consolidated financial statements of First
Interstate Bancorp included in First Bank System, Inc.'s Current Report on
Form 8-K dated November 16, 1995, filed with the Securities and Exchange
Commission.


                               /s/ Ernst & Young LLP

Los Angeles, California
January 17, 1996



<PAGE>


                                                                Exhibit 23.5



                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by
reference in this Form S-4 Registration Statement of our report dated
August 28, 1995, of FirsTier Financial, Inc. and Subsidiaries 1994 Financial
Statements included in First Bank System, Inc.'s Amendment No. 1 on Form 8-K/A
filed August 30, 1995, and all references to our firm included in this
Registration Statement.



/s/ Arthur Andersen LLP



Omaha, Nebraska
January 17, 1996



<PAGE>

                                                                   EXHIBIT 23.6


CONSENT OF MORGAN STANLEY & CO. INCORPORATED

January 19, 1996


FirsTier Financial, Inc.
1700 Farnam Street
Omaha, Nebraska 68102

Dear Sirs:

    We hereby consent to the use in this Registration Statement on Form S-4
of First Bank System, Inc. of our letter to the Board of Directors of
FirsTier Financial, Inc. included as Appendix B to the Joint Proxy
Statement/Prospectus that is a part of this Registration Statement, and to
the references to such letter and to our firm in such Joint Proxy
Statement/Prospectus. In giving such consent, we do not thereby admit that we
come within the category of persons whose consent is required under Section 7
of the Securities Act of 1933, or the rules and regulations of the Securities
and Exchange Commission thereunder (as amended, the "33 Act") nor do we admit
that we are experts with respect to any part of such Registration Statement
within the meaning of the term "experts" as used in the 33 Act.

                                       Very truly yours,

                                       MORGAN STANLEY & CO. INCORPORATED


                                       By: /s/ Donald A. Moore, Jr.
                                          ------------------------------
                                          Donald A. Moore, Jr.
                                          Managing Director




<PAGE>
                                                                   EXHIBIT 24.1

                               POWER OF ATTORNEY

     KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below hereby constitutes and appoints Lee R. Mitau, Richard A. Zona
and David J. Parrin, and each of them, his or her true and lawful
attorneys-in-fact and agents, each acting alone, with full power of
substitution and resubstitution, for him or her and in his or her
name, place and stead, in any and all capacities, to sign a Registration
Statement on Form S-4 of First Bank System, Inc., and any and all amendments
thereto, including post-effective amendments, and to file the same, with all
exhibits thereto and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents, each acting alone, full power and authority to do and perform to all
intents and purposes as he or she might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents, each
acting alone, or the substitutes for such attorneys-in-fact and agents, may
lawfully do or cause to be done by virtue hereof.

       SIGNATURE                        TITLE                      DATE
       ---------                        -----                      ----

 /s/ John F. Grundhofer      Chairman, President, Chief       December 29, 1995
- --------------------------   Executive Officer and Director
     John F. Grundhofer      (principal executive officer)

 /s/ R.A. Zona               Vice Chairman and                December 29, 1995
- --------------------------   Chief Financial Officer
     Richard A. Zona         (principal financial officer)

                             Senior Vice President and                   , 1995
- --------------------------   Controller (principal            -----------
     David J. Parrin         accounting officer)

 /s/ Roger L. Hale
- --------------------------   Director                         December 29, 1995
     Roger L. Hale

 /s/ Delbert W. Johnson
- --------------------------   Director                         December 29, 1995
     Delbert W. Johnson

 /s/ Norman M. Jones
- --------------------------   Director                         December 29, 1995
     Norman M. Jones

 /s/ J.H. Kareken
- --------------------------   Director                         December 29, 1995
     John H. Kareken

 /s/ R.L. Knowlton
- --------------------------   Director                         December 29, 1995
     Richard L. Knowlton

 /s/ J.W. Levin
- --------------------------   Director                         December 29, 1995
     Jerry W. Levin

 /s/ Kenneth Macke
- --------------------------   Director                         December 29, 1995
     Kenneth A. Macke


<PAGE>



 /s/ Marilyn C. Nelson
- --------------------------   Director                         December 29, 1995
     Marilyn C. Nelson

 /s/ Edward J. Phillips
- --------------------------   Director                         December 29, 1995
     Edward J. Phillips


- --------------------------   Director                                    , 1995
     James J. Renier                                          -----------

 /s/ S. Walter Richey
- --------------------------   Director                         December 29, 1995
     S. Walter Richey

 /s/ R. Robinson
- --------------------------   Director                         December 29, 1995
     Richard L. Robinson


- --------------------------   Director                                    , 1995
     Richard L. Schall                                        -----------

 /s/ Lyle E. Schroeder
- --------------------------   Director                         December 29, 1995
     Lyle E. Schroeder


                                      -2-



<PAGE>
               THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS    EXHIBIT 99.1

                            FIRSTIER FINANCIAL, INC.
                        SPECIAL MEETING OF SHAREHOLDERS
                                           , 1996

    The  undersigned hereby appoints              and              , and each of
them, as attorneys and proxies, each with full power of substitution, and hereby
authorizes each of  them to represent  and vote  all shares of  Common Stock  of
FirsTier  Financial,  Inc. ("FirsTier")  held of  record  by the  undersigned on
               , 1996, at                      , Omaha, Nebraska, at         .m.
local  time, on                    ,  1996 and at  any and  all postponements or
adjournments thereof, as set forth below.

    PLEASE COMPLETE, DATE AND SIGN THIS PROXY BELOW AND MAIL THIS PROXY PROMPTLY
IN THE ENCLOSED POSTAGE-PREPAID ENVELOPE. THIS PROXY WILL BE VOTED AS  DIRECTED,
BUT  IF NO INSTRUCTIONS ARE SPECIFIED, THIS PROXY  WILL BE VOTED FOR EACH OF THE
PROPOSALS STATED. AT THE PRESENT TIME, THE BOARD OF DIRECTORS KNOWS OF NO  OTHER
BUSINESS TO BE PRESENTED AT THE SPECIAL MEETING.

1.  PROPOSAL  TO APPROVE THE AGREEMENT OF MERGER AND CONSOLIDATION, dated August
    6, 1995 (the "Merger Agreement"), among First Bank System, Inc. ("FBS")  and
    FirsTier,  and the transactions contemplated thereby. Pursuant to the Merger
    Agreement, among other things,  FirsTier will be merged  with and into  FBS,
    and  each issued and outstanding share of the Common Stock, $5.00 par value,
    of FirsTier, will be  exchanged for .8829 share  of the Common Stock,  $1.25
    par value, of FBS.

               / /  FOR           / /  AGAINST           / /  ABSTAIN

                          (CONTINUED ON REVERSE SIDE)
<PAGE>
2.  To  transact such  other business  as may  properly come  before the Special
    Meeting or any adjournment or postponement thereof.

    The undersigned hereby revokes any  other proxy or proxies heretofore  given
to  vote  or act  with  respect to  such Common  Stock  of FirsTier,  and hereby
ratifies and  confirms  all  action  that  said  attorneys  and  proxies,  their
substitutes, or any of them may lawfully take by virtue hereof.

    Please  sign this card exactly  as your name appears  below. When signing as
attorney, executor, administrator,  trustee or guardian,  please give your  full
title. If shares are held jointly, each holder should sign.
                                              Dated: _____________________, 1996
                                              __________________________________
                                              __________________________________
                                                         Signature(s)

<PAGE>
                                                                   EXHIBIT 99.6
                               November 29, 1995

FirsTier Financial, Inc.
1700 Farnam Street
Omaha, Nebraska 68102-2183

Ladies and Gentlemen:

         This letter agreement is being entered into in connection with the
execution of an Agreement of Merger and Consolidation (the "Agreement"),
dated as of August 6, 1995, between First Bank System, Inc. (the "Acquiror")
and FirsTier Financial, Inc. (the "Company"), pursuant to which, among other
things, the Company will merge with and into the Acquiror (the "Merger"),
subject to the terms and conditions set forth in the Agreement. Capitalized
terms which are used but not defined herein shall have the meanings ascribed
to such terms in the Agreement.

         The purpose of this letter agreement is to confirm our mutual
understandings and agreements with regard to the Amended and Restated
Employment Agreement between FirsTier Financial, Inc. and Jack R. McDonnell
(the "Executive"), dated March 20, 1995 (the "Employment Agreement") and the
other matters described in the Consent to Unanimous Action of the Executive
Committee of the Board of Directors of FirsTier Financial, Inc., dated
November 29, 1995 (the "Resolutions") (attached hereto as Exhibit 1) as it
relates to the Executive.

         Each of the Company and the Acquiror hereby certifies to each other
as of the date hereof (the "Payment Date") that it is not now aware of any
facts applicable to it that would be likely to prevent approval of the Merger
by any governmental entity. The Company agrees to pay on the Payment Date, and
the Executive agrees to accept payment of, the amounts described in the
Resolutions, including, without limitation, (i) the amounts due pursuant to
the Employment Agreement and (ii) the amount due under the Company's Change
of Control Bonus Pool Plan, as modified by the Resolutions (the "Bonus Pool")
(it being acknowledged that the aggregate of all payments owing by the
Company pursuant to the Bonus Pool shall total $7 million in accordance with
Schedule A attached to the Resolutions), in each case as if a Change of
Control had taken place on the Payment Date and the Company had terminated
the Executive's employment (without cause and without the Executive's
consent) on such date. The Acquiror agrees that the total of all such
payments to the Executive will equal the total payment as set forth on the
schedule attached hereto as Exhibit 2 (the "Total Payments").


<PAGE>

FirsTier Financial, Inc.
November 29, 1995
Page 2


         The Executive agrees, on his behalf and on behalf of his heirs,
assigns, executors, administrators and legal representatives, that (i) the
Company's payment of the amounts described in clauses (i) and (ii) of the
preceding paragraph shall be in full satisfaction of the Company's
obligations to make such payments to the Executive pursuant to the Employment
Agreement and the Bonus Pool and (ii) upon the Executives' receipt of such
payments, the Company will be released from any further obligation, liability
or claim under or relating to the obligation to make such payments to the
Executive pursuant to the Employment Agreement and the Bonus Pool whenever
arising; provided, that such satisfaction and release shall be without
prejudice to any other provision of the Employment Agreement, including,
without limitation, rights to payment of death benefits or supplemental
retirement benefits; and provided further, however, that nothing in this
letter agreement shall have any effect whatsoever on the rights of the
Executive to receive from the Company reimbursement with respect to taxes as
set forth in the penultimate paragraph of Section 5 of the Employment
Agreement.

         In the event that the Merger is not consummated pursuant to the
Agreement after the Payment Period, the Acquiror shall, within five days
following termination of the Agreement in accordance with its terms, promptly
reimburse the Company for the Total Payments. In the event that the Company
becomes liable for any Taxes (including, without limitation, any interest or
penalties imposed with respect to such Taxes) as a result of the payments
made by the Acquiror to the Company pursuant to the preceding sentence (any
such liability being referred to herein as a "Company Tax Liability"), the
Acquiror shall pay to the Company such additional amounts as may be necessary
to make the Company whole on an after-tax basis (taking into account any
deductions actually utilized by the Company as a result of making the Total
Payments) as if such Company Tax Liability had never been incurred (after
taking into account any additional liability for Taxes imposed on the Company
as a result of any of the payments made by the Acquiror pursuant to this
sentence). In the event that the Executive becomes liable for any Taxes
(including, without limitation, any interest or penalties imposed with
respect to such Taxes) as a result of the Total Payments being paid hereunder
that would not have been payable had such payments been made immediately
after the consummation of the Merger (an "Executive Tax Liability"), the
Acquiror shall indemnify the Executive on an after-tax basis from and against
any such Executive Tax Liability. Acquiror shall indemnify the Company and
the Executive for reasonable expenses (including, without limitation,
reasonable attorneys' and accountants' fees) incurred as a result of any
audit or other proceeding relating to the defense of a Company Tax Liability
or Executive Tax Liability (together a "Tax Liability"). The Acquiror shall
make any payments required pursuant to this paragraph within five days after
it receives written notice that a Tax Liability or related expense actually
has been incurred.


<PAGE>

FirsTier Financial, Inc.
November 29, 1995
Page 3


         In addition, the Acquiror acknowledges that, in accordance with the
Resolutions, and without any resulting reimbursement obligation being imposed
on the Acquiror, the Company shall cause all outstanding Incentive Stock
Options, Discounted Non-Qualified Stock Options (collectively, the
"Options"), Restricted Stock Options and Phantom Stock Options, if any,
granted to the Executive under the Company's Omnibus Equity Plan or any
predecessor plan to become immediately vested and exercisable as of the
Payment Date. The Executive agrees to exercise the Options prior to December
31, 1995.

         Except as expressly set forth herein, this letter agreement shall
not be deemed to affect or modify any provision of the Employment Agreement.

         This letter agreement may not be amended or terminated without
the prior written consent of the Company, the Executive and the Acquiror.

         This letter agreement may be executed in any number of counterparts
which together shall constitute but one agreement.

         This letter agreement may not be assigned by any party hereto and
shall be binding on and inure to the benefit of their respective successors
and, in the case of the Executive, heirs and other legal representatives.

         Each of the Acquiror, the Company and the Executive has caused this
letter agreement to be duly executed as of the date first above written.

                                       FIRST BANK SYSTEM, INC.

                                   by:  /s/ LEE R. MITAU
                                       -------------------------------------
                                       Executive Vice President, General
                                       Counsel & Secretary

                                       FIRSTIER FINANCIAL, INC.

                                   by:  /s/ DAVID A. RISMILLER
                                       -------------------------------------

                                        /s/ JACK R. McDONNELL
                                       -------------------------------------
                                       Jack R. McDonnell

<PAGE>



                                   Exhibit 2

                          PAYMENT TO JACK McDONNELL

             Base salary                            $  672,750
             Incentive                                 448,500
             Average of last 3 years' incentives       146,667
             Accrued vacation                           17,308
             Tax equalization payment                  140,000
             Salary replacement                         28,125
             Consulting payment                        250,000
             401(k) forfeiture                          70,000
             Health coverage estimate                  255,000
             CIC Bonus Pool                          1,920,000
                                                    ----------
                            Total Payment           $3,948,350
                                                    ----------
                                                    ----------





<PAGE>

                                                                    EXHIBIT 99.7

                              EMPLOYMENT AGREEMENT

     THIS AGREEMENT, made by and between FirsTier Financial, Inc., a Nebraska
corporation (the "Corporation"), and David A. Rismiller (the "Executive") dated
the fourth day of August, 1995.

     WHEREAS, the Corporation has entered into an Agreement of Merger and
Consolidation (the "Merger Agreement") with First Bank System, Inc. of even
date herewith;

     WHEREAS, the Executive has served as Chairman, President and Chief
Executive Officer of the Corporation, and has gained significant and valuable
knowledge and experience with respect to the Corporation in such capacities; and

     WHEREAS, the Executive and the Corporation have entered into an Employment
Agreement dated as of the 20th day of March, 1995 (the "Prior Agreement"); and

     WHEREAS, the Corporation wishes to provide for the continued involvement
of the Executive in the business of the Corporation following the consummation
of the Merger (as such term is defined in the Merger Agreement) and the
Executive desires to perform such services;

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
provisions herein contained, the Executive and the Corporation agree with each
other as follows:

<PAGE>

     1.  EMPLOYMENT PERIOD.  The Corporation hereby retains the Executive for
the period commencing on the Effective Date (as such term is defined in the
Merger Agreement) and ending on December 31, 1996 (the "Employment Period"),
during which time the Executive shall serve as Chairman and Chief Executive
Officer of First Bank Nebraska and shall be available to aid the Corporation in
the transition period following the acquisition of the Corporation with respect
to (a) general corporate and personnel organizational matters; (b) the
retention of employees and employee relations; (c) the retention of customers;
and (d) cost reduction and organizational efficiencies. During the Employment
Period, the Executive shall be an employee of the Corporation for all purposes,
including for purposes of the FirsTier Financial, Inc. Omnibus Executive
Benefit Plan (the "Omnibus Plan") as well as the Corporation's Restricted Stock
Bonus Plan, Discounted Nonqualified Stock Option Plan and Phantom Stock Unit
Plan (collectively, the "Stock Plans"). Except as specifically provided herein,
this Agreement shall not affect the Executive's rights under the Prior
Agreement.

     2.  SALARY AND BENEFITS.  In consideration of the services and duties
agreed to be rendered and performed by the Executive hereunder, the Corporation
hereby covenants and agrees to pay the Executive a monthly salary at the rate
of one-twelfth of three hundred fifty thousand dollars ($350,000). During the
Employment Period, the Executive


                                       -2-

<PAGE>

shall be entitled:  to receive health and welfare and similar benefits
substantially the same as those provided by the Corporation to the Executive's
peer executives; to continued coverage under UNUM policy number LAD318392
providing for disability income (the "Disability Income Policy") as in effect
immediately prior to the Effective Date; and to continuation of the fringe
benefits provided by the Corporation to the Executive immediately prior to the
Effective Date (including, without limitation, providing and paying for:  all
fees and charges associated with the Executive's membership at the Omaha
Country Club; an automobile (the "Automobile") comparable to the automobile
currently available for the Executive's use; and home security system) (the
"Fringe Benefits").


     3.  BONUS POOL.  On the business day immediately preceding the date set
for the closing of the Merger Agreement, the Executive shall be entitled to
receive a cash Bonus as set forth in the FirsTier Financial, Inc. Change of
Control Bonus Pool Plan (the "Bonus Pool Plan"). The Corporation hereby
covenants and agrees that the Bonus awarded to the Executive pursuant to the
terms of the Bonus Pool Plan shall in no event be in an amount comprising less
than fifty per cent (50%) of the total available Bonus Pool.



                                      -3-

<PAGE>

     4.  CHANGE IN CONTROL PAYMENT.  Upon consummation of the Merger the
Corporation shall immediately pay to the Executive the termination benefit
provided by the Prior Agreement as if the Executive had been terminated by the
Corporation as a result of a Change in Control pursuant to Section 5 thereof
whether or not the Executive is then employed by the Corporation and regardless
of the reason for any such cessation of employment.

     5.  TERMINATION

     (a) During the Employment Period the Corporation may not terminate the
Executive's employment other than for "Cause." For purposes of this Agreement,
Cause means either:


         i.    Conviction of a felony involving moral turpitude; or

         ii.   Conduct willfully injurious to the Corporation.

     (b) At the end of the Employment Period or if, during the Employment
Period, the Corporation shall terminate the Executive's employment other than
for Cause or the Executive shall terminate employment for any reason:

         i.    The Executive shall be entitled to receive retirement benefits
under Article V of the Omnibus Plan payable as if the Executive were sixty-two
(62) years of age on the date of such cessation of employment, and for purposes
of


                                      -4-

<PAGE>

calculating such retirement benefits the Executive shall be deemed to have
continued his employment with the Corporation through the attainment of
sixty-two (62) years of age at a base annual salary equal to the greater of
three hundred fifty thousand dollars ($350,000) and the Executive's base annual
salary immediately prior to such cessation of employment; the retirement
benefits payable to the Executive shall be calculated in accordance with the
assumptions underlying Exhibit A;

         ii.   The Executive shall be entitled to receive retiree life and
medical benefits no less favorable than those provided by the Corporation
immediately prior to the date of the signing of the Merger Agreement, and for
purposes of calculating the retiree benefits to which the Executive shall be
entitled the Executive shall be deemed to have continued his employment with
the Corporation through the attainment of sixty-two (62) years of age at a base
annual salary equal to the greater of three hundred fifty thousand dollars
($350,000) and the Executive's base annual salary immediately prior to such
cessation of employment;

         iii.  The Executive shall be entitled to the continuation of the
Fringe Benefits until the earlier of his death or the attainment of sixty-two
(62) years of age;

         iv.   All stock options, Bonus Shares, Phantom Stock Units and any
other rights and benefits granted to the Executive pursuant to the Stock Plans
shall immediately become


                                      -5-


<PAGE>

fully vested and/or exercisable as set forth in Section 7 of the Prior
Agreement;

         v.    Effective as of the first premium date following such cessation
of employment, the Executive shall be entitled to assume and to continue his
coverage under the Disability Income Policy as in effect immediately prior to
such cessation of employment to the extent permissible under the terms of such
policy; such assumption and continuation of the Disability Income Policy shall
be at the Executive's own expense, provided, however, that the Corporation
shall be liable for and shall pay all premiums and other costs payable with
respect to such Disability Income Policy through the first premium date
following such cessation of employment;

         vi.   In accordance with the provisions of Section 6.2(d) of the
Omnibus Plan, the Executive shall be deemed to have reached his Normal
Retirement Date prior to such cessation of employment for purposes of
determining the Survivor Benefit to which the Executive and his beneficiary are
entitled pursuant to Article VI of the Omnibus Plan; and

         vii.  The Executive shall be entitled to purchase the Automobile from
the Corporation at a price not to exceed the Automobile's book value for
financial reporting purposes as of the date of such cessation of employment.

     (c) In addition to the foregoing, in the event that, during the employment
period, the Corporation shall terminate


                                      -6-

<PAGE>


the Executive's employment (other than for Cause) without the Executive's
written consent, the Executive shall be entitled to receive a termination
payment equal to the balance of his annual salary (no less than three hundred
fifty thousand dollars ($350,000)) that would be payable if his employment had
continued through the end of the calendar year during which such cessation of
employment occurs.

     6.  FULL SETTLEMENT.  The Corporation's obligation to make the payments
provided for in this Agreement and otherwise to perform its obligations
hereunder shall not be affected by any set-off, counterclaim, recoupment,
defense or other claim, right or action which the Corporation may have against
the Executive or others. In no event shall the Executive be obligated to seek
other employment or take any other action by way of mitigation of the amounts
payable to the Executive under any of the provisions of this Agreement and
such amounts shall not be reduced whether or not the Executive obtains other
employment. The Corporation agrees to pay as incurred, to the full extent
permitted by law, all legal fees and expenses which the Executive may
reasonably incur as a result of any contest (regardless of the outcome thereof)
by the Corporation, the Executive or others of the validity or enforceability
of, or liability under, any provision of this Agreement or any guarantee of
performance thereof (including as a result of any contest by the Executive
about the amount of any payment pursuant to this Agreement), plus in each case


                                      -7-

<PAGE>

interest on any delayed payment at the applicable Federal rate provided for
in Section 7872(f)(2)(A) of the Internal Revenue Code of 1986, as amended
(the "Code").

     7.  CERTAIN ADDITIONAL PAYMENTS.  In the event it shall be determined that
any payment (within the meaning of Section 280G of the Code) or distribution to
or for the benefit of the Executive (determined without regard to any
additional payments required under this Section 6) (a "Payment") would be
subject to the excise tax imposed by Section 4999 of the Code or any interest
or penalties are incurred by the Executive with respect to such excise tax
(such excise tax, together with any such interest and penalties, are
hereinafter collectively referred to as the "Excise Tax"), then the Executive
shall be entitled to receive from the Corporation an additional payment (a
"Gross-Up Payment") in an amount such that after payment by the Executive of
all taxes (including any interest or penalties imposed with respect to such
taxes), including, without limitation, any income taxes (and any interest and
penalties imposed with respect thereto) and Excise Tax imposed upon the
Gross-Up Payment, the Executive retains an amount of the Gross-Up Payment equal
to the Excise Tax imposed upon the Payments. All determinations under this
Section 6 shall be made by a nationally recognized accounting firm selected by
the Executive.

     8.  NON-EXCLUSIVITY OF RIGHTS.  Nothing in this Agreement shall limit or
otherwise affect such rights as the


                                      -8-

<PAGE>

Executive may have under any other agreements with, or plans or programs of,
the Corporation or any of its affiliated companies, including, without
limitation, the Prior Agreement, the Omnibus Plan or the Stock Plans. Amounts
which are vested benefits or which the Executive is otherwise entitled to
receive under any plan or program of the Corporation or any of their affiliated
companies at or subsequent to the Effective Date including, but not limited to,
the Executive's entitlement to severance under the Prior Agreement shall be
payable in accordance with such plan or program, except as otherwise expressly
provided herein.

     9.  SUCCESSORS.

     (a)  This Agreement is personal to the Executive and without the prior
written consent of the Corporation shall not be assignable by the Executive
otherwise than by will or the laws of descent and distribution. This Agreement
shall inure to the benefit of and be enforceable by the Executive's legal
representatives.

     (b)  This Agreement shall inure to the benefit or and be binding upon the
Corporation and its successors.

     (c)  The Corporation will require any successor (whether direct or
indirect, by purchase, merger, consolidation or otherwise) to all or
substantially all of the business and/or assets of the Corporation to expressly
assume and agree to perform this Agreement in the same manner and to the


                                      -9-

<PAGE>

same extent that the Corporation would be required to perform it if no such
succession had taken place. As used in this Agreement, "Corporation" shall mean
the Corporation as hereinbefore defined and any successor to its business
and/or assets as aforesaid which assumes and agrees to perform this Agreement
by operation of law, or otherwise.

     10. MISCELLANEOUS.

     (a) This Agreement shall be governed by and construed in accordance with
the laws of the State of Nebraska, without reference to principles of conflict
of laws. The captions of this Agreement are not part of the provisions hereof
and shall have no force or effect. This Agreement may not be amended or
modified otherwise than by a written agreement executed by the parties hereto
or their respective successors and legal representatives.

     (b) All notices and other communications hereunder shall be in writing and
shall be given by hand delivery to the other party or by registered or
certified mail, return receipt requested, postage prepaid, addressed as follows:

     IF TO THE EXECUTIVE:

          David A. Rismiller
          1223 South 113th Court
          Omaha, Nebraska 68144


                                     -10-

<PAGE>

     IF TO THE CORPORATION:

          FirsTier Financial, Inc.
          1700 Farnam Street
          Omaha, Nebraska 68102-2183
          Attention: General Counsel
          Fax: (402) 348-6221

     with a copy to:

          First Bank System, Inc.
          First Bank Place
          601 Second Avenue South
          Minneapolis, Minnesota 55402-4302
          Attention: Richard A Zona, Vice Chairman
                        and Chief Financial Officer
          Fax: (612) 973-0410

or to such other address as either party shall have furnished to the other
in writing in accordance herewith. Notice and communications shall be
effective when actually received by the addressee.

     (c) The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of any other
provision of this Agreement.

     (d) The Corporation may withhold from any amounts payable under this
Agreement such amounts as shall be required to be withheld pursuant to any
applicable law or regulation.

     (e) The Executive's failure to insist upon strict compliance with any
provision hereof shall not be deemed to be a waiver of such provision or any
other provision thereof.


                                      -11-
<PAGE>

     IN WITNESS WHEREOF, the Executive has hereunto set his hand and,
pursuant to the authorization from its Board of Directors, the Corporation
has caused these presents to be executed in its name on its behalf, all as of
the day and year first above written.

                                             /s/ David A. Rismiller
                                    ------------------------------------------
                                    David A. Rismiller


                                    FIRSTIER FINANCIAL, INC.


                                    By           /s/ Walter Scott
                                      ----------------------------------------
                                      Walter Scott, Jr., Chairman of the
                                        Executive Committee of the
                                        Board of Directors


Acknowledged and Agreed to:


FIRST BANK SYSTEM INC.


By         /s/ R.A. Zona
   ------------------------------
   Richard A. Zona, Vice Chairman
     and Chief Financial Officer



                                      -12-



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission