BURLINGTON NORTHERN SANTA FE CORP
8-A12B, 1999-12-23
RAILROADS, LINE-HAUL OPERATING
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<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 8-A

               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                   PURSUANT TO SECTION 12(B) OR 12(G) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

                    Burlington Northern Santa Fe Corporation
- --------------------------------------------------------------------------------
            (Exact name of registrant as specified in its charter)

                Delaware                                 41-1804964
  ------------------------------------      ------------------------------------
(State of incorporation or organization)    (I.R.S. Employer Identification No.)

          2650 Lou Menk Drive
           Fort Worth, Texas                             76131-2830
  ------------------------------------      ------------------------------------
(Address of Principal Executive Offices)                 (Zip Code)

If this form relates to the                If this form relates to the
registration of a class of securities      registration of a class of securities
pursuant to Section 12(b) of the           pursuant to Section 12(g) of the
Exchange Act and is effective              Exchange Act and is effective
pursuant to General Instruction A(c),      pursuant to General Instruction A(d),
please check the following box. [x]        please check the following box. [ ]

Securities Act registration statement file number to which this
form relates:                                                    Not applicable
                                                                 ---------------
                                                                 (if applicable)

      Title of Each Class                  Name of Each Exchange on Which
      to be so Registered                  Each Class is to be Registered
- -------------------------------            ------------------------------

Preferred Stock Purchase Rights               New York Stock Exchange
                                              Chicago Stock Exchange
                                                 Pacific Exchange

Securities to be registered pursuant to Section 12(g) of the Act:

                                     None
                              ------------------
                               (Title of Class)
<PAGE>

Item 1.   Description of Registrant's Securities to be Registered
          -------------------------------------------------------

     On December 18, 1999, the Board of Directors of Burlington Northern Santa
Fe Corporation (the "Company") declared a dividend distribution of one Right for
each outstanding share of common stock, par value $0.01 per share (the "Common
Stock"), of the Company to stockholders of record at the close of business on
December 31, 1999 (the "Record Date"). Except as described below, each Right,
when exercisable, entitles the registered holder to purchase from the Company
one one-hundredth of a share of Junior Participating Preferred Stock, Series B,
par value $0.01 per share (the "Preferred Stock"), at a price of $100.00 per one
one-hundredth share (the "Purchase Price"), subject to adjustment. The
description and terms of the Rights are set forth in a Rights Agreement (the
"Rights Agreement") between the Company and First Chicago Trust Company of New
York, as Rights Agent.

     Initially, the Rights will be attached to all Common Stock certificates
representing shares then outstanding, and no separate Right certificates will be
distributed. 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") has acquired, or obtained the right to acquire, beneficial
ownership of 15% or more of the outstanding shares of Common Stock (the "Shares
Acquisition Date") or (ii) 10 business days (or such later date as may be
determined by action of the Board of Directors of the Company (the "Board of
Directors") prior to the time that any person becomes an Acquiring Person)
following the commencement of (or a public announcement of an intention to make)
a tender or exchange offer if, upon consummation thereof, such person or group
would be the beneficial owner of 15% or more of such outstanding shares of
Common Stock (the earlier of such dates being called the "Distribution Date"),
the Rights will be evidenced by the Common Stock certificates together with a
copy of the Summary of Rights Plan and not by separate certificates.

     The Rights Agreement also provides that, until the Distribution Date, the
Rights will be transferred with and only with the Common Stock. Until the
Distribution Date (or earlier redemption, expiration or termination of the
Rights), the transfer of any certificates for Common Stock, with or without a
copy of this Summary of Rights Plan, will also constitute the transfer of the
Rights associated with the Common Stock represented by such certificates. 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 Stock as of the close of business on the Distribution Date and,
thereafter, such separate Right Certificates alone will evidence the Rights.

     The Rights are not exercisable until the Distribution Date and will expire
at the earliest of (i) December 18, 2009 (the "Final Expiration Date"), (ii) the
redemption of the Rights by the Company as described below, (iii) the time
immediately prior to the effectiveness of the merger of Western Merger Sub,
Inc., a Delaware corporation, with and into the Company pursuant to a
Combination Agreement dated as of December 18, 1999, as such Combination
Agreement may be amended from time to time (the "Combination Agreement"), and
(iv) the exchange of all Rights for Common Stock as described below.
<PAGE>

     In the event that any person (other than the Company, its affiliates or any
person receiving newly-issued shares of Common Stock directly from the Company)
becomes the beneficial owner of 15% or more of the then outstanding shares of
Common Stock, each holder of a Right will thereafter have the right to receive,
upon exercise at the then current exercise price of the Right, Common Stock (or,
in certain circumstances, cash, property or other securities of the Company)
having a value equal to two times the exercise price of the Right. The Rights
Agreement contains an exemption for any issuance of Common Stock by the Company
directly to any person (for example, in a private placement or an acquisition by
the Company in which Common Stock is used as consideration), even if that person
would become the beneficial owner of 15% or more of the Common Stock, provided
that such person does not acquire any additional shares of Common Stock.

     In the event that, at any time following the Shares Acquisition Date, the
Company is acquired in a merger or other business combination transaction or 50%
or more of the Company's 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 exercise at the then current exercise price of the Right, common
stock of the acquiring or surviving company having a value equal to two times
the exercise price of the Right.

     Notwithstanding the foregoing, following the occurrence of any of the
events set forth in the preceding two paragraphs (the "Triggering Events"), any
Rights that are, or (under certain circumstances specified in the Rights
Agreement) were, beneficially owned by any Acquiring Person will immediately
become null and void.

     The Purchase Price payable, and the number of shares of Preferred Stock or
other securities or property issuable, upon exercise of the Rights, are subject
to adjustment from time to time to prevent dilution, among other circumstances,
in the event of a stock dividend on, or a subdivision, split, combination,
consolidation or reclassification of, the Preferred Stock or the Common Stock,
or a reverse split of the outstanding shares of Preferred Stock or the Common
Stock.

     At any time after the acquisition by a person or group of affiliated or
associated persons of beneficial ownership of 15% or more of the outstanding
Common Stock and prior to the acquisition by such person or group of 50% or more
of the outstanding Common Stock, the Board of Directors may exchange the Rights
(other than Rights owned by such person or group, which have become void), in
whole or in part, at an exchange ratio of one share of Common Stock 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
the Purchase Price. The Company will not be required to issue fractional shares
of Preferred Stock or Common Stock (other than fractions in multiples of one
one-hundredths of a share of Preferred Stock) and, in lieu thereof, an
adjustment in cash may be made based on the market price of the Preferred Stock
or Common Stock on the last trading date prior to the date of exercise.
<PAGE>

     At any time after the date of the Rights Agreement until the time that a
person becomes an Acquiring Person, the Board of Directors may redeem the Rights
in whole, but not in part, at a price of $0.01 per Right (the "Redemption
Price"), which may (at the option of the Company) be paid in cash, shares of
Common Stock or other consideration deemed appropriate by the Board of
Directors. Upon the effectiveness of any action of the Board of Directors
ordering redemption of the Rights, the Rights will terminate and the only right
of the holders of Rights will be to receive the Redemption Price.

     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.

     The provisions of the Rights Agreement may be amended by the Company,
except that any amendment adopted after the time that a person becomes an
Acquiring Person may not adversely affect the interests of holders of Rights.

     As of December 15, 1999, there were 454,945,828 shares of Common Stock
outstanding and 30,048,057 shares of Common Stock reserved for issuance under
employee benefit plans. Each outstanding share of Common Stock on December 31,
1999 will receive one Right. Three million (3,000,000) shares of Preferred Stock
will be reserved for issuance in the event of exercise of the Rights.

     The Rights have certain anti-takeover effects. The Rights will cause
substantial dilution to a person or group that attempts to acquire the Company
without conditioning the offer on the Rights being redeemed or a substantial
number of Rights being acquired, and under certain circumstances the Rights
beneficially owned by such a person or group may become void. The Rights should
not interfere with the transaction contemplated by the Combination Agreement or
any other merger or other business combination approved by the Board of
Directors because, if the Rights would become exercisable as a result of such
merger or business combination, the Board of Directors may, at its option, at
any time prior to the time that any Person becomes an Acquiring Person, redeem
all (but not less than all) of the then outstanding Rights at the Redemption
Price.

     A copy of the Rights Agreement is being filed with the Securities and
Exchange Commission as an exhibit to this Registration Statement on Form 8-A.
This summary description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement.

     UNDER CERTAIN CIRCUMSTANCES, AS SET FORTH IN THE RIGHTS AGREEMENT, RIGHTS
OWNED BY OR TRANSFERRED TO ANY PERSON WHO IS OR BECOMES AN ACQUIRING PERSON (AS
DEFINED IN THE RIGHTS AGREEMENT) AND CERTAIN TRANSFEREES THEREOF WILL BECOME
NULL AND VOID AND WILL NO LONGER BE TRANSFERABLE.
<PAGE>

Item 2.        Exhibits
               --------

Exhibit No.    Exhibit
- -----------    -------

    4.1        Certificate of Designations, Preferences and Rights of the Series
               B Junior Participating Preferred Stock.

   99.1        Rights Agreement, dated as of December 18, 1999, between
               Burlington Northern Santa Fe Corporation and First Chicago Trust
               Company of New York, as Rights Agent, which includes as Exhibit A
               thereto the Form of Certificate of Designations, Preferences and
               Rights of the Series B Junior Participating Preferred Stock, as
               Exhibit B thereto the Form of Right Certificate and as Exhibit C
               thereto the Summary of Rights Plan.

   99.2        Press Release by Burlington Northern Santa Fe Corporation, dated
               December 22, 1999.

<PAGE>

                                   SIGNATURE

     Pursuant to the requirements of Section 12 of the Securities Exchange Act
of 1934, the registrant has duly caused this registration statement to be signed
on its behalf by the undersigned, thereunto duly authorized.


                                       BURLINGTON NORTHERN SANTA FE
                                       CORPORATION



Date:  December 23, 1999               By:/s/ Jeffrey R. Moreland
                                          -------------------------------------
                                          Name:  Jeffrey R. Moreland
                                          Title: Senior Vice President-Law and
                                                 Chief of Staff


<PAGE>

                                 EXHIBIT LIST
                                 ------------

Exhibit No.    Exhibit
- -----------    -------

    4.1        Certificate of Designations, Preferences and Rights of the Series
               B Junior Participating Preferred Stock.

   99.1        Rights Agreement, dated as of December 18, 1999, between
               Burlington Northern Santa Fe Corporation and First Chicago Trust
               Company of New York, as Rights Agent, which includes as Exhibit A
               thereto the Form of Certificate of Designations, Preferences and
               Rights of the Series B Junior Participating Preferred Stock, as
               Exhibit B thereto the Form of Right Certificate and as Exhibit C
               thereto the Summary of Rights Plan.

   99.2        Press Release by Burlington Northern Santa Fe Corporation, dated
               December 22, 1999.





<PAGE>

               CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS
       OF JUNIOR PARTICIPATING PREFERRED STOCK, SERIES B, $0.01 PAR VALUE

                                       of

                    BURLINGTON NORTHERN SANTA FE CORPORATION

             Pursuant to Section 151 of the General Corporation Law
                            of the State of Delaware

     Burlington Northern Santa Fe Corporation, a corporation organized and
existing under the General Corporation Law of the State of Delaware (the
"Corporation"), in accordance with the provisions of Section 103 thereof, hereby
certifies that the following resolution was adopted by the Board of Directors of
the Corporation:

     RESOLVED, that pursuant to the authority conferred upon the Board of
Directors by the Certificate of Incorporation, as amended, of the Corporation,
the Board of Directors on December 18, 1999 adopted the following resolution
creating a series of 3,000,000 shares of preferred stock designated as "Junior
Participating Preferred Stock, Series B," $0.01 par value:

     RESOLVED, that pursuant to the authority vested in the Board of Directors
of the Corporation in accordance with the provisions of its Certificate of
Incorporation, as amended, a series of preferred stock, par value $0.01 per
share, of the Corporation (such preferred stock being herein referred to as
"Preferred Stock," which term shall include any additional shares of preferred
stock of the same class heretofore or hereafter authorized to be issued by the
Corporation), consisting of 3,000,000 shares is hereby created, and the voting
powers, preferences and relative, participating, optional or other special
rights, and the qualifications, limitations or restrictions thereof, are as
follows:

     Section 1. Designation and Amount. There shall be a series of Preferred
Stock of the Corporation which shall be designated as "Junior Participating
Preferred Stock, Series B," par value $0.01 per share (hereinafter called
"Series B Preferred Stock"), and the number of shares constituting such series
shall be 3,000,000. Such number of shares may be increased or decreased by
resolution of the Board of Directors and by the filing of a certificate pursuant
to the provisions of the General Corporation Law of the State of Delaware
stating that such increase or reduction has been so authorized; provided,
however, that no decrease shall reduce the number of shares of Series B
Preferred Stock to a number less than that of the shares then outstanding plus
the number of shares of Series B Preferred Stock issuable upon exercise of
outstanding rights, options or warrants or upon conversion of outstanding
securities issued by the Corporation.

<PAGE>

     Section 2. Dividends and Distributions.

     (A) Subject to the prior and superior rights of the holders of any shares
of any series of Preferred Stock ranking prior and superior to the shares of
Series B Preferred Stock with respect to dividends, the holders of shares of
Series B Preferred 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 to holders of record on the last business
day of March, June, September and December in each year (each such date being
referred to herein as a "Quarterly Dividend Record Date"), commencing on the
first Quarterly Dividend Record Date after the first issuance of a share or
fraction of a share of Series B Preferred Stock, in an amount per share (rounded
to the nearest cent) equal to, 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 (hereinafter defined) or a subdivision of the outstanding
shares of Common Stock (by reclassification or otherwise), declared on the
Common Stock, par value $0.01 per share, of the Corporation (the "Common Stock")
since the immediately preceding Quarterly Dividend Record Date, or, with respect
to the first Quarterly Dividend Record Date, since the first issuance of any
share or fraction of a share of Series B Preferred Stock. In the event the
Corporation shall at any time following December 31, 1999 (i) declare any
dividend on Common Stock payable in shares of Common Stock, (ii) subdivide the
outstanding Common Stock or (iii) combine the outstanding Common Stock into a
smaller number of shares, then in each such case the amount to which holders of
shares of Series B Preferred Stock were entitled immediately prior to such event
under the preceding sentence shall be adjusted by multiplying each 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
B Preferred Stock as provided in paragraph (A) above at the time it declares a
dividend or distribution on the Common Stock (other than a dividend payable in
shares of Common Stock).

     (C) No dividend or distribution (other than a dividend payable in shares of
Common Stock) shall be paid or payable to the holders of shares of Common Stock
unless, prior thereto, all accrued but unpaid dividends to the date of such
dividend or distribution shall have been paid to the holders of shares of Series
B Preferred Stock.

                                       2
<PAGE>

     (D) Dividends shall begin to accrue and be cumulative on outstanding shares
of Series B Preferred Stock from the Quarterly Dividend Record Date next
preceding the date of issue of such shares of Series B Preferred Stock, unless
the date of issue of such shares is prior to the record date for the first
Quarterly Dividend Record 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 Record Date or is a date after the record date for
the determination of holders of shares of Series B Preferred Stock entitled to
receive a quarterly dividend and before such Quarterly Dividend Record Date, in
either of which events such dividends shall begin to accrue and be cumulative
from such Quarterly Dividend Record Date. Accrued but unpaid dividends shall not
bear interest. Dividends paid on the shares of Series B 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
among 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 B Preferred
Stock entitled to receive payment of a dividend or distribution declared
thereon, which record date shall be no more than 30 days prior to the date fixed
for the payment thereof.

     Section 3. Voting Rights. The holders of shares of Series B Preferred Stock
shall have the following voting rights:

     (A) Subject to the provision for adjustment hereinafter set forth, each one
one-hundredth of a share of Series B Preferred Stock shall entitle the holder
thereof to one vote on all matters submitted to a vote of the stockholders of
the Corporation. In the event the Corporation shall at any time following
December 31, 1999 (i) declare any dividend on Common Stock payable in shares of
Common Stock, (ii) subdivide the outstanding shares of Common Stock or (iii)
combine the outstanding Common Stock into a smaller number of shares, then in
each such case the number of votes per share to which holders of shares of
Series B 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 or by law, the holders of shares of
Series B 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.

     (C)  (i) Whenever, at any time or times, dividends payable on any share or
     shares of Series B Preferred Stock shall be in arrears in an amount equal
     to at least six full quarterly dividends (whether or not declared and
     whether or not consecutive), the holders of record of the outstanding
     Series B Preferred Stock shall have the exclusive right, voting separately
     as a single class, to elect two directors of the Corporation at a

                                       3
<PAGE>

     special meeting of stockholders of the Corporation or at the Corporation's
     next annual meeting of stockholders, and at each subsequent annual meeting
     of stockholders, as provided below. At elections for such directors, the
     holders of shares of Series B Preferred Stock shall be entitled to cast one
     vote for each one one-hundredth of a share of Series B Preferred Stock
     held.

          (ii) Upon the vesting of such right of the holders of the Series B
     Preferred Stock, the maximum authorized number of members of the Board of
     Directors shall automatically be increased by two and the two vacancies so
     created shall be filled by vote of the holders of the outstanding Series B
     Preferred Stock as hereinafter set forth. A special meeting of the
     stockholders of the Corporation then entitled to vote shall be called by
     the Chairman or the President or the Secretary of the Corporation, if
     requested in writing by the holders of record of not less than 10% of the
     Series B Preferred Stock then outstanding. At such special meeting, or, if
     no such special meeting shall have been called, then at the next annual
     meeting of stockholders of the Corporation, the holders of the shares of
     the Series B Preferred Stock shall elect, voting as above provided, two
     directors of the Corporation to fill the aforesaid vacancies created by the
     automatic increase in the number of members of the Board of Directors. At
     any and all such meetings for such election, the holders of a majority of
     the outstanding shares of the Series B Preferred Stock shall be necessary
     to constitute a quorum for such election, whether present in person or by
     proxy, and such two directors shall be elected by the vote of at least a
     plurality of shares held by such stockholders present or represented at the
     meeting. Any director elected by holders of shares of the Series B
     Preferred Stock pursuant to this Section may be removed at any annual or
     special meeting, by vote of the holders of a majority of the outstanding
     shares of the Series B Preferred Stock voting as a class, with or without
     cause. In case any vacancy shall occur among the directors elected by the
     holders of the Series B Preferred Stock pursuant to this Section, such
     vacancy may be filled by the remaining director so elected, or his or her
     successor then in office, and the director so elected to fill such vacancy
     shall serve until the next meeting of stockholders for the election of
     directors. After the holders of the Series B Preferred Stock shall have
     exercised their right to elect Directors in any default period and during
     the continuance of such period, the number of Directors shall not be
     further increased or decreased except by vote of the holders of Series B
     Preferred Stock as herein provided or pursuant to the rights of any equity
     securities ranking senior to or pari passu with the Series B Preferred
     Stock.

                                       4
<PAGE>

          (iii) The right of the holders of the Series B Preferred Stock, voting
     separately as a class, to elect two members of the Board of Directors of
     the Corporation as aforesaid shall continue until, and only until, such
     time as all arrears in dividends (whether or not declared) on the Series B
     Preferred Stock shall have been paid or declared and set apart for payment,
     at which time such right shall terminate, except as herein or by law
     expressly provided, subject to revesting in the event of each and every
     subsequent default of the character above-mentioned. Upon any termination
     of the right of the holders of the shares of the Series B Preferred Stock
     as a class to vote for directors as herein provided, the term of office of
     all directors then in office elected by the holders of Series B Preferred
     Stock pursuant to this Section shall terminate immediately. Whenever the
     term of office of the directors elected by the holders of the Series B
     Preferred Stock pursuant to this Section shall terminate and the special
     voting powers vested in the holders of the Series B Preferred Stock
     pursuant to this Section shall have expired, the maximum number of members
     of the Board of Directors of the Corporation shall be such number as may be
     provided for in the By-laws of the Corporation irrespective of any increase
     made pursuant to the provisions of this Section.

     (D) Except as set forth herein, holders of Series B 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 B 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 B Preferred Stock outstanding shall have
been paid in full, the Corporation shall not:

          (i) declare or pay dividends on, make any other distributions on, or
     redeem or purchase or otherwise acquire for consideration any shares of
     stock ranking junior (either as to dividends or upon liquidation,
     dissolution or winding up) to the Series B Preferred Stock;

          (ii) declare or pay dividends on 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 B Preferred Stock,
     except dividends paid ratably on the Series B 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;

                                       5
<PAGE>

          (iii) redeem or purchase or otherwise acquire for consideration shares
     of any stock ranking on a parity (either as to dividends or upon
     liquidation, dissolution or winding up) with the Series B Preferred Stock,
     provided that the Corporation may at any time redeem, purchase or otherwise
     acquire shares of any such parity 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 B Preferred Stock; or

          (iv) purchase or otherwise acquire for consideration any shares of
     Series B 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 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,
purchase or otherwise acquire such shares at such time and in such manner.

     Section 5. Reacquired Shares. Any shares of Series B 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
Series B Preferred Stock and may be reissued as part of a new series of
Preferred Stock to be created by resolution or resolutions of the Board of
Directors, subject to the conditions and restrictions on issuance set forth
herein.

     Section 6. Liquidation, Dissolution or Winding Up. (A) Upon any voluntary
liquidation, dissolution or winding up of the Corporation, no distribution shall
be made to the holders of shares of stock ranking junior (either as to dividends
or upon liquidation, dissolution or winding up) to the Series B Preferred Stock
unless, prior thereto, the holders of shares of Series B Preferred Stock shall
have received $0.01 per share, plus an amount equal to accrued and unpaid
dividends and distributions thereon, whether or not declared, to the date of
such payment (the "Series B Liquidation Preference"). Following the payment of
the full amount of the Series B Liquidation Preference, no additional
distributions shall be made to the holders of shares of Series B Preferred Stock
unless, prior thereto, the holders of shares of Common Stock shall have received
an amount per share (the "Common Adjustment") equal to the quotient obtained by
dividing (i) the Series B Liquidation Preference by (ii) 100 (as appropriately
adjusted as set forth in subparagraph C below to reflect such events as stock
splits, stock dividends and recapitalizations with respect to the Common Stock)
(such number in clause (ii), the "Adjustment Number"). Following the payment of
the full amount of the

                                       6
<PAGE>

Series B Liquidation Preference and the Common Adjustment in respect of all
outstanding shares of Series B Preferred Stock and Common Stock, respectively,
holders of Series B Preferred Stock and holders of shares of Common Stock shall
receive their ratable and proportionate share of the remaining assets to be
distributed in the ratio, on a per share basis, of the Adjustment Number to 1
with respect to such Preferred Stock and Common Stock, on a per share basis,
respectively.

     (B) In the event, however, that there are not sufficient assets available
to permit payment in full of the Series B Liquidation Preference and the
liquidation preferences of all other series of Preferred Stock, if any, which
rank on a parity with the Series B Preferred Stock, then such remaining assets
shall be distributed ratably to the holders of such parity shares in proportion
to their respective liquidation preferences.

     (C) In the event the Corporation shall at any time following December 31,
1999, (i) declare any dividend on Common Stock payable in shares of Common
Stock, (ii) subdivide the outstanding shares of Common Stock or (iii) combine
the outstanding Common Stock into a smaller number of shares, then in each such
case the Adjustment Number in effect immediately prior to such event shall be
adjusted by multiplying such Adjustment 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.

     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 the shares of
Series B Preferred Stock shall at the same time be similarly exchanged or
changed in 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 (i) declare any dividend on
Common Stock payable in shares of Common Stock, (ii) subdivide the outstanding
Common Stock or (iii) combine the outstanding Common Stock into a smaller number
of shares, then in each such case the amount set forth in the preceding sentence
with respect to the exchange or change of shares of Series B 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. Redemption. The shares of a Series B Preferred Stock shall not
be redeemable by the Corporation. The preceding sentence shall not limit the
ability of the Corporation to purchase or otherwise deal in such shares of stock
to the extent permitted by law.

                                       7
<PAGE>

     Section 9. Ranking. The Series B Preferred Stock shall rank junior to all
other series of the Corporation's preferred stock (whether with or without par
value) as to the payment of dividends and the distribution of assets, unless the
terms of any such series shall provide otherwise.

     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 B Preferred Stock so as to
affect them adversely without the affirmative vote of the holders of a majority
of the outstanding shares of Series B Preferred Stock, voting separately as a
class.

     Section 11. Fractional Shares. Series B Preferred Stock may be issued in
fractions of a share which shall entitle the holder, in proportion to such
holder's fractional shares, to exercise voting rights, receive dividends,
participate in distributions and to have the benefit of all other rights of
holders of Series B Preferred Stock.

     IN WITNESS WHEREOF, the Corporation has caused this Certificate to be
signed by Jeffrey R. Moreland, its Senior Vice President-Law and Chief of Staff,
this 21st day of December, 1999.


                                       BURLINGTON NORTHERN SANTA FE
                                       CORPORATION



                                       By:/s/ Jeffrey R. Moreland
                                          --------------------------------
                                          Name:  Jeffrey R. Moreland
                                          Title: Senior Vice President-Law
                                                 and Chief of Staff

                                       8

<PAGE>

================================================================================

                                RIGHTS AGREEMENT


                                    between


                    BURLINGTON NORTHERN SANTA FE CORPORATION


                                      and


                    FIRST CHICAGO TRUST COMPANY OF NEW YORK


                                  Rights Agent


                         Dated as of December 18, 1999

================================================================================
<PAGE>

                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                     Page
                                                                                     ----
<S>          <C>                                                                     <C>
Section 1.   Certain Definitions....................................................   1
Section 2.   Appointment of Rights Agent............................................   8
Section 3.   Issue of Right Certificates............................................   8
Section 4.   Form of Right Certificates.............................................  12
Section 5.   Countersignature and Registration......................................  13
Section 6.   Transfer, Split Up, Combination and Exchange of Right Certificates;
             Mutilated, Destroyed, Lost or Stolen Right Certificates................  14
Section 7.   Exercise of Rights; Purchase Price; Expiration Date of Rights..........  16
Section 8.   Cancellation and Destruction of Right Certificates.....................  20
Section 9.   Availability of Preferred Shares.......................................  20
Section 10.  Preferred Shares Record Date...........................................  21
Section 11.  Adjustment of Purchase Price, Number of Shares or Number of Rights.....  22
Section 12.  Certificate of Adjusted Purchase Price or Number of Shares.............  37
Section 13.  Consolidation, Merger or Sale or Transfer of Assets or Earning Power...  37
Section 14.  Fractional Rights and Fractional Shares................................  41
Section 15.  Rights of Action.......................................................  44
Section 16.  Agreement of Right Holders.............................................  44
Section 17.  Right Certificate Holder Not Deemed a Stockholder......................  45
Section 18.  Concerning the Rights Agent............................................  46
</TABLE>
                                     -ii-
<PAGE>

<TABLE>
<CAPTION>
<S>         <C>                                                                      <C>
Section 19.  Merger or Consolidation or Change of Name of Rights Agent..............  47
Section 20.  Duties of Rights Agent.................................................  48
Section 21.  Change of Rights Agent.................................................  52
Section 22.  Issuance of New Right Certificates.....................................  54
Section 23.  Redemption.............................................................  55
Section 24.  Exchange...............................................................  57
Section 25.  Notice of Certain Events...............................................  59
Section 26.  Notices................................................................  61
Section 27.  Supplements and Amendments.............................................  62
Section 28.  Successors.............................................................  62
Section 29.  Benefits of this Agreement.............................................  62
Section 30.  Severability...........................................................  63
Section 31.  Governing Law..........................................................  63
Section 32.  Counterparts...........................................................  63
Section 33.  Descriptive Headings...................................................  63
Section 34.  Determinations and Actions by the Board of Directors...................  64
</TABLE>

                                     -iii-
<PAGE>

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                          <C>
Signatures................................................................    65

Exhibit A - Form of Certificate of Designation, Preferences and Rights

Exhibit B - Form of Right Certificate

Exhibit C - Summary of Rights Plan
</TABLE>

                                     -iv-


<PAGE>

                               RIGHTS AGREEMENT
                               ----------------


     Rights Agreement, dated as of December 18, 1999, between BURLINGTON
NORTHERN SANTA FE CORPORATION, a Delaware corporation (the "Company"), and FIRST
CHICAGO TRUST COMPANY OF NEW YORK (the "Rights Agent").

                             W I T N E S S E T H:
                             - - - - - - - - - -

     WHEREAS, 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 as of the close of
business on December 31, 1999 (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
Expiration Date (as such terms are hereinafter defined).

     NOW, THEREFORE, 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:

          "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)
<PAGE>

of such Person, shall be the Beneficial Owner (as such term is hereinafter
defined) of 15% or more of the Common Shares of the Company then outstanding,
but shall not include the Company, any Subsidiary (as such term is defined
herein) of the Company, any employee benefit plan of the Company or of any
Subsidiary of the Company, or any Person 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 (a) an acquisition of Common
Shares by the Company which, by reducing the number of Common Shares
outstanding, increases the proportionate number of Common Shares beneficially
owned by such Person to 15% or more of the Common Shares of the Company then
outstanding or (b) the acquisition by such Person of newly-issued Common Shares
directly from the Company (it being understood that a purchase from an
underwriter or other intermediary is not deemed for purposes hereof to be a
purchase directly from the Company); provided, however, that if a Person shall
become the Beneficial Owner of 15% or more of the Common Shares of the Company
then outstanding by reason of share purchases by the Company or the receipt of
newly-issued Common Shares directly from the Company and shall, after such share
purchases or direct issuance 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;" provided further, however, that any transferee from such
Person who becomes the Beneficial Owner of 15% or more of the Common Shares of
the Company then outstanding shall nevertheless be deemed to be an "Acquiring
Person". Notwithstanding the foregoing, if the Board of Directors of the Company
determines in good faith that a Person who would otherwise be an "Acquiring
Person," as defined pursuant to the

                                      -2-
<PAGE>

foregoing provisions of this paragraph, has become such inadvertently, and such
Person divests as promptly as practicable (and in any event within ten Business
Days after notification by the Company) a sufficient number of Common Shares so
that such Person would no longer be an Acquiring Person, as defined pursuant to
the foregoing provisions of this paragraph, then such Person shall not be deemed
to be an "Acquiring Person" for any purposes of this Agreement.

          "Affiliate" and "Associate" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under
the Exchange Act, as in effect on the date of this Agreement.

          A Person shall be deemed the "Beneficial Owner" of and shall be deemed
to have "beneficial ownership" of or to "beneficially own" any securities:

          (a) which such Person or any of such Person's Affiliates or Associates
     beneficially owns, directly or indirectly;

          (b) which such Person or any of such Person's Affiliates or
     Associates, directly or indirectly, has (i) the right to acquire (whether
     such right is exercisable immediately or only after the passage of time)
     pursuant to any agreement, arrangement or understanding, whether written or
     oral (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, have "beneficial ownership" of or to beneficially own, (A) securities
     tendered pursuant to a tender or exchange offer made by

                                      -3-
<PAGE>

     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, (B) securities issuable upon exercise of Rights at any time prior
     to the occurrence of a Triggering Event (as such term is hereinafter
     defined) or (C) securities issuable upon exercise of Rights from and after
     the occurrence of a Triggering Event, which Rights were acquired by such
     Person or any of such Person's Affiliates or Associates prior to the
     Distribution Date or pursuant to Section 3(a) hereof ("Original Rights") or
     pursuant to Section 11(i) or Section 22 hereof in connection with an
     adjustment made with respect to Original Rights; (ii) the sole or shared
     right to vote or dispose (including any such right pursuant to any
     agreement, arrangement or understanding, whether written or oral);
     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) "beneficial ownership" (as
     determined pursuant to Rule 13d-3 (or any successor rule) of the General
     Rules and Regulations under the Exchange Act);

          (c) which are beneficially owned, directly or indirectly, by any other
     Person (or any Affiliate or Associate thereof) with which such Person or
     any of such Person's Affiliates or Associates has any agreement,
     arrangement or understanding, whether

                                      -4-
<PAGE>

     written or oral (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 clause (B) of
     subparagraph (b) of this definition) or disposing of any securities of the
     Company; or

          (d) which are directly, indirectly or constructively owned by such
     Person or any such Person's Affiliates or Associates, within the meaning of
     Section 958 of the U.S. Internal Revenue Code of 1986, as amended.

          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.

          Notwithstanding anything in this definition of Beneficial Ownership to
the contrary, for purposes of this Agreement, neither (i) any "clearing agency,"
as defined in Section 3(a)(23)(A) of the Exchange Act, which is holding
securities solely in its capacity as a clearing agency, nor (ii) North American
Railways, Inc. ("Newco"), a Delaware corporation 50% owned by the Company and
50% owned by Canadian National Railway Company ("CN"), a Canadian corporation,
shall not be deemed a "Beneficial Owner" of, or to "beneficially own," any
shares of any class of capital stock of the Company as a result of the
execution, delivery or performance of the Combination Agreement dated as of
December 18, 1999 between CN, the Company, Newco

                                      -5-
<PAGE>

and Western Merger Sub, Inc., a Delaware corporation and a wholly owned
subsidiary of Newco ("Merger Sub"), as amended from time to time (the
"Combination Agreement") or the consummation of any of the transactions
contemplated thereunder.

          "Business Day" shall mean any day other than a Saturday, a Sunday, or
a day on which banking institutions in New York are authorized or obligated by
law or executive order to close.

          "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., central time, on the next succeeding Business Day.

          "Common Shares" when used with reference to the Company shall mean the
shares of common stock, par value $0.01 per share, of the Company (as such
shares may be constituted or designated, or as such par value may be changed,
from time to time during the term of this Agreement).  "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 the
equity securities or other equity interest having power to control or direct the
management of such other Person.

          "Distribution Date" shall have the meaning set forth in Section 3
hereof.

          "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended.

          "Expiration Date" shall have the meaning set forth in Section 7
hereof.

          "Final Expiration Date" shall have the meaning set forth in Section 7
hereof.

          "Merger Date" shall have the meaning set forth in Section 7 hereof.

                                      -6-

<PAGE>

          "Person" shall mean any individual, firm, corporation, partnership,
limited liability company or other entity, and shall include any successor (by
merger or otherwise) of such entity.

          "Preferred Shares" shall mean shares of Junior Participating Preferred
Stock, Series B, par value $0.01 per share, of the Company having the rights and
preferences set forth in the Form of Certificate of Designations, Preferences
and Rights attached to this Agreement as Exhibit A.

          "Purchase Price" shall have the meaning set forth in Section 4 hereof.

          "Redemption Date" shall have the meaning set forth in Section 7
hereof.

          "Right Certificate" shall have the meaning set forth in Section 3
hereof.

          "Securities Act" shall mean the Securities Act of 1933, as amended.

          "Shares Acquisition Date" shall mean the first date of public
announcement (which, for purposes of this definition, shall include, without
limitation, a report filed pursuant to Section 13(d) promulgated under the
Exchange Act) by the Company or an Acquiring Person that an Acquiring Person has
become such.

          "Subsidiary" shall mean, with reference to any Person, 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.

          "Triggering Event" shall mean any event described in Section 11(a)(ii)
or Section 13(a) hereof.

                                      -7-
<PAGE>

     Any determination or interpretation required in connection with any of the
definitions contained in this Section 1 shall be made by the Board of Directors
of the Company in their good faith judgment, which determination shall be final
and binding on the Rights Agent.

     Section 2. Appointment of Rights Agent. The Company hereby appoints the
Rights Agent to act as agent for the Company 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 upon ten (10) days' prior written notice to the Rights
Agent. The Rights Agent shall have no duty to supervise, and shall in no event
be liable for, the acts or omissions of any such co-Rights Agent.

     Section 3.  Issue of Right Certificates.


                                      -8-
<PAGE>

     (a) Until the earlier of (i) the close of business on the tenth day after
the Shares Acquisition Date or (ii) the close of business on the tenth Business
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 15% 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 certificates for Rights)
and not by separate certificates, and (y) the Rights will be transferable only
in connection with the transfer of the underlying Common Shares (including a
transfer to the Company). The Company shall give the Rights Agent prompt written
notice of the Distribution Date. As soon as practicable after the Distribution
Date, the Company will prepare and execute, the Rights Agent will, after receipt
of written notice of the Distribution Date from the Company, countersign, and
the Company will send or cause to be sent (and the Rights Agent will, if
requested, send at the expense of

                                      -9-
<PAGE>

the Company) 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 an aggregate number of Rights equal to one
Right for each Common Share so held. As of the Distribution Date, the Rights
will be evidenced solely by such Right Certificates.


     (b) As soon as practicable after the Record Date, the Company will send a
copy of a Summary of Rights Plan, in substantially the form of Exhibit C hereto
(the "Summary of Rights Plan"), to each record holder of Common Shares as of the
close of business on the Record Date (other than any Acquiring Person or any
Associate or Affiliate of any Acquiring Person), 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 the Summary of Rights Plan, and registered holders
of Common Shares shall also be the registered holders of the associated Rights.
Until the Distribution Date (or the earlier of the Redemption Date or the Final
Expiration Date), the transfer of any certificate for Common Shares outstanding
on the Record Date, with or without a copy of the Summary of Rights Plan, shall
also constitute the transfer of the Rights associated with the Common Shares
represented thereby.

     (c) Rights shall be issued in respect of all Common Shares which are issued
(whether originally issued or delivered from the Company's treasury) after the
Record Date but prior to the earliest of the Distribution Date, the Redemption
Date or the Final Expiration Date. Certificates representing such Common Shares
shall also be deemed to be certificates for Rights. Certificates representing
both Common Shares and Rights in accordance with this Section 3 which are
executed and delivered (whether the Common Shares represented thereby are
originally issued, delivered from the Company's treasury or are presented for
transfer) by the

                                     -10-
<PAGE>

Company (including, without limitation, certificates representing 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 or the Final Expiration Date shall have impressed on, printed on, written
on or otherwise affixed to them a legend substantially equivalent to the
following:

     This certificate also evidences and entitles the holder hereof to certain
     rights as set forth in the Rights Agreement between Burlington Northern
     Santa Fe Corporation (the "Company") and First Chicago Trust Company of New
     York, dated as of December 18, 1999 (the "Rights Agreement"), the terms of
     which are hereby incorporated herein by reference and a copy of which is on
     file at the principal offices of the Company. 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.
     The Company will mail to the holder of this certificate a copy of the
     Rights Agreement, as in effect on the date of mail ing, without charge
     promptly after receipt of a written request therefor. Under certain
     circumstances set forth in the Rights Agreement, Rights issued to, or held
     by, any Person who is, was or becomes an Acquiring Person or an Affiliate
     or Associate thereof (as such terms are defined in the Rights Agreement),
     whether currently held by or on behalf of such Person or by any subsequent
     holder, shall become null and void.

Until the Distribution Date, the Rights associated with the Common Shares shall
be evidenced by the certificates representing the associated Common Shares
alone, and the 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.

                                     -11-
<PAGE>

      Section 4.  Form of Right Certificates.

     (a) The Right Certificates (and the forms of election to purchase Preferred
Shares and of assignment to be printed on the reverse thereof) shall each be
substantially in the form set forth in 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. The Right Certificates shall be in a
machine printable format and in a form reasonably satisfactory to the Rights
Agent. Subject to the provisions of Sections 11, 13, 22 and 24 hereof, the Right
Certificates shall entitle the holders thereof to purchase 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 amount and type of securities purchasable upon the exercise of
each Right and the Purchase Price thereof shall be subject to adjustment as
provided herein.

     (b) Any Right Certificate issued pursuant to Section 3(a) or Section 22
hereof that represents Rights beneficially owned by: (i) an Acquiring Person or
any Associate or Affiliate of an Acquiring Person, (ii) a transferee of an
Acquiring Person (or such Associate or Affiliate) who becomes a transferee after
the Acquiring Person becomes an Acquiring Person, or (iii) a transferee of an
Acquiring Person (or such Associate or Affiliate) who becomes a transferee prior
to or concurrently with the Acquiring Person becoming such and receives such
Rights pursuant to either (A) a transfer (whether or not for consideration) from
the Acquiring Person to holders of equity interests in such Acquiring Person or
to any Person with whom the Acquiring Person has any continuing agreement,
arrangement or understanding, whether written or oral, regarding the transferred
Rights or (B) a transfer which the Board of Directors otherwise concludes in
good faith is part of a plan, arrangement or understanding, whether written or
oral, which has as a


                                     -12-
<PAGE>

primary purpose or effect avoidance of Section 7(e) hereof, and any Right
Certificate issued pursuant to Section 6 or Section 11 hereof upon transfer,
exchange, replacement or adjustment of any other Right Certificate referred to
in this sentence, shall contain (to the extent feasible and otherwise reasonably
identifiable as such) the following legend:

     The Rights represented by this Right Certificate are or were beneficially
     owned by a Person who was or became an Acquiring Person or an Affiliate or
     Associate of an Acquiring Person (as such terms are defined in the Rights
     Agreement). Accordingly, this Right Certificate and the Rights represented
     hereby may become void in the circumstances specified in Section 7(e) of
     such Agreement.

The Company shall instruct the Rights Agent in writing of the Rights which
should be so legended and shall supply the Rights Agent with such legended Right
Certificates. The provisions of Section 7(e) shall apply whether or not any
Right Certificate actually contains the foregoing legend.

      Section 5.  Countersignature and Registration.  The Right Certificates
shall be executed on behalf of the Company by its Chairman of the Board, its
Chief Executive Officer, any Vice Chairman, its President, any of its Vice
Presidents, or its Treasurer, 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 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

                                     -13-

<PAGE>

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 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 office designated for such purpose, 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 Exchange of Right
Certificates; Mutilated, Destroyed, Lost or Stolen Right Certificates.

     (a) Subject to the provisions of Sections 4(b), 7(e), 14 and 24 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 or the Final
Expiration Date, any Right Certificate or Right Certificates 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
Preferred Shares (or, following a Triggering Event, Common Shares, other
securities or property, as the case may be) 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,

                                     -14-

<PAGE>

and shall surrender the Right Certificate or Right Certificates to be
transferred, split up, combined or exchanged at the office of the Rights Agent
designated for such purpose. Neither the Rights Agent nor the Company shall be
obligated to take any action whatsoever with respect to the transfer of any such
surrendered Right Certificate until the registered holder shall have completed
and signed the certificate contained in the form of assignment on the reverse
side of such Right Certificate accompanied by such documents as the Rights Agent
may deem appropriate and the Company shall have been provided with such
additional evidence of the identity of the Beneficial Owner (or former
Beneficial Owner) or Affiliates or Associates thereof as the Company shall
reasonably request. Thereupon the Rights Agent shall, subject to Sections 4 and
7 hereof, countersign and deliver to the person entitled thereto a Right
Certificate or Right Certificates, as the case may be, as so requested. The
Company may require payment by the holders of Rights Certificates 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.

     (b) 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 make and deliver a new
Right Certificate of like tenor

                                     -15-
<PAGE>

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) Subject to Section 7(e) hereof, 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 office of
the Rights Agent designated for such purpose, together with payment of the
Purchase Price with respect to each surrendered Right for the total number of
Preferred Shares (or other securities or property, as the case may be) as to
which the Rights are exercised, at or prior to the earliest of (i) the close of
business on December 18, 2009 (the "Final Expiration Date"), (ii) the time at
which the Rights are redeemed as provided in Section 23 hereof (the "Redemption
Date"), (iii) the time immediately prior to the effective time of the merger of
Merger Sub with and into the Company in accordance with Delaware law and
pursuant to the Combination Agreement (the "Merger Date") (the earliest of (i),
(ii) or (iii) being herein referred to as the "Expiration Date") or (iv) the
time at which such Rights are exchanged as provided in Section 24 hereof.

     (b) The Purchase Price for each one one-hundredth of a Preferred Share
pursuant to the exercise of a Right shall initially be $100.00, 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.

                                     -16-
<PAGE>

     (c) Upon receipt of a Right Certificate representing exercisable Rights,
with the form of election to purchase and the certificate on the reverse side of
the Right Certificate duly executed, accompanied by such documents as the Rights
Agent may deem appropriate, payment of the Purchase Price for the shares (or
other securities or property, as the case may be) 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 thereupon promptly (i) (A) requisition from any transfer agent of
the Preferred Shares (or make available, if the Rights Agent is the transfer
agent of the Preferred Shares) certificates for the number of Preferred Shares
to be purchased and the Company hereby irrevocably authorizes its transfer agent
to comply with all such requests, or (B) if the Company shall have elected to
deposit the Preferred Shares issuable upon exercise of the Rights with a
depositary agent, requisition from the depositary agent depositary receipts
representing such number of one one-hundredths of a Preferred Share as are to be
purchased (in which case certificates for the Preferred Shares represented by
such receipts shall be deposited by the transfer agent with the depositary
agent) and the Company will direct 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 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

                                     -17-
<PAGE>

holder of such Right Certificate. In the event that the Company is obligated to
issue other securities (including Common Shares) of the Company, pay cash and/or
distribute other property pursuant to Section 11(a) hereof, the Company will
make all arrangements necessary so that such other securities, cash and/or
property are available for distribution by the Rights Agent, if and when
appropriate.

     (d) In case the registered holder of any Right Certificate shall exercise
less than all the Rights evidenced thereby, a new Right Certificate evidencing
Rights equivalent to the Rights remaining unexercised shall be issued by the
Rights Agent and delivered to the registered holder of such Right Certificate or
to his duly authorized assigns, subject to the provisions of Section 14 hereof.

     (e) Notwithstanding anything in this Agreement to the contrary, from and
after the occurrence of a Triggering Event, any Rights beneficially owned by (i)
an Acquiring Person or an Associate or Affiliate of an Acquiring Person, (ii) a
transferee of an Acquiring Person (or of any such Associate or Affiliate) who
becomes a transferee after the Acquiring Person becomes an Acquiring Person, or
(iii) a transferee of an Acquiring Person (or such Associate or Affiliate) who
becomes a transferee prior to or concurrently with the Acquiring Person becoming
an Acquiring Person and receives such Rights pursuant to either (A) a transfer
(whether or not for consideration) from the Acquiring Person to holders of
equity interests in such Acquiring Person or to any Person with whom the
Acquiring Person has any continuing agreement, arrangement or understanding,
whether written or oral, regarding the transferred Rights or (B) a transfer
which the Board of Directors otherwise concludes in good faith is part of a
plan, arrangement or

                                     -18-

<PAGE>

understanding (whether written or oral) which has as a primary purpose or effect
the avoidance of this Section 7(e), shall become null and void without any
further action, and any holder of such Rights shall thereupon have no rights
whatsoever with respect to such Rights, whether under any provision of this
Agreement or otherwise, from and after the occurrence of a Triggering Event. The
Company shall use all reasonable efforts to insure that the provisions of this
Section 7(e) hereof are complied with, but shall have no liability to any holder
of Rights for the inability to make any determinations with respect to an
Acquiring Person or its Affiliates, Associates or transferees hereunder.

     (f) Notwithstanding anything in this Agreement to the contrary, neither the
Rights Agent nor the Company shall be obligated to undertake any action with
respect to a registered holder upon the occurrence of any purported exercise as
set forth in this Section 7 unless the certificate contained in the form of
election to purchase set forth on the reverse side of the Right Certificate
surrendered for such exercise shall have been completed and signed by the
registered holder thereof and the Company shall have been provided with such
additional evidence of the identity of the Beneficial Owner (or former
Beneficial Owner) or Affiliates or Associates thereof as the Company shall
reasonably request.

     (g) The Company covenants and agrees that it will cause to be reserved and
kept available out of its authorized and unissued Preferred Shares (and,
following the occurrence of a Triggering Event, Common Shares and/or other
securities) or any Preferred Shares (and, following the occurrence of a
Triggering Event,

                                     -19-
<PAGE>

Common Shares and/or other securities) held in its treasury, the number of
Preferred Shares (and, following the occurrence of a Triggering Event, Common
Shares and/or other securities) that will be sufficient to permit the exercise
in full of all outstanding Rights.

     (h) Notwithstanding any statement to the contrary contained in this
Agreement or in any Right Certificate, if the Distribution Date or the Shares
Acquisition Date shall occur prior to the Record Date, the provisions of this
Agreement, including (without limitation) Sections 3 and 11(a)(ii), shall be
applicable to the Rights upon their issuance to the same extent such provisions
would have been applicable if the Record Date were the date of this Agreement.

     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, cause such cancelled Right Certificates to be destroyed,
and in such case cause a certificate of destruction to be delivered to the
Company.

     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 (and, following the occurrence of a Triggering Event, Common
Shares and/or other securities) delivered upon

                                     -20-
<PAGE>

exercise of Rights shall, at the time of delivery of the certificates for such
Preferred Shares (and, following the occurrence of a Triggering Event, Common
Shares and/or other securities), 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 and/or other securities, as the case may
be) 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 or depositary receipts for the Preferred Shares (or Common Shares
and/or other securities, as the case may be) 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 or depositary receipts for
Preferred Shares (or Common Shares and/or other securities, as the case may be)
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 (other than the
Company) in whose name any certificate for Preferred Shares (or Common Shares
and/or other securities, as the case may be) is issued upon the exercise of
Rights shall for all purposes be deemed to have become the holder of record of
the shares or securities represented thereby on, and such

                                     -21-
<PAGE>

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 or other governmental charges) was made; provided,
however, that if the date of such surrender and payment is a date upon which the
Preferred Shares (or Common Shares and/or other securities, as the case may be)
transfer books of the Company are closed, such person shall be deemed to have
become the record holder of such shares or securities on, and such certificate
shall be dated, the next succeeding Business Day on which the Preferred Shares
(or Common Shares and/or other securities, as the case may be) transfer books of
the Company 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 and/or other securities, as the case may be)
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 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 into a
     greater number of 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,

                                     -22-
<PAGE>

     except as otherwise provided in this Section 11(a) and Section 7(e) hereof,
     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. If an event
     occurs which would require an adjustment under both Section 11(a)(i) and
     Section 11(a)(ii), the adjustment provided for in this Section 11(a)(i)
     shall be in addition to, and shall be made prior to, any adjustment
     required pursuant to Section 11(a)(ii).

          (ii) Subject to Section 24 of this Agreement, in the event any Person
     becomes an Acquiring Person, each holder of a Right, except as provided
     below and in Section 7(e) hereof, shall thereafter have a right to receive,
     upon 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
     the

                                     -23-
<PAGE>

     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 for which a Right is then exercisable 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 of the
     occurrence of such event. 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.

          (iii) In lieu of issuing Common Shares of the Company in accordance
     with Section 11(a)(ii) hereof, the Company may, in the sole discretion of
     the Board of Directors, elect to (and, in the event that the Board of
     Directors has not exercised the exchange right contained in Section 24
     hereof and there are not sufficient issued but not outstanding and
     authorized but unissued Common Shares to permit the exercise in full of the
     Rights in accordance with Section 11(a)(ii), the Company shall) take all
     such action as may be necessary to authorize, issue or pay, upon the
     exercise of the Rights, cash (including by way of a reduction of the
     Purchase Price), property, other securities or any combination thereof
     having an aggregate value equal to the value of the Common Shares of the
     Company which otherwise would have been issuable pursuant to Section
     11(a)(ii), which aggregate value shall be determined by a majority of the
     Board of Directors. For purposes of the preceding sentence, the value of
     the Common Shares shall be determined pursuant to Section 11(d) hereof and
     the value of any equity securities which a majority

                                     -24-
<PAGE>

     of the Board of Directors determines to be a "common stock equivalent"
     (including the Preferred Shares, in such ratio as the Board of Directors
     shall determine) shall be deemed to have the same value as the Common
     Shares. Any such election by the Board of Directors must be made and
     publicly announced within 60 days following the date on which the event
     described in Section 11(a)(ii) shall have occurred. Following the
     occurrence of the event described in Section 11(a)(ii), a majority of the
     Board of Directors then in office may suspend the exercisability of the
     Rights for a period of up to 60 days following the date on which the event
     described in Section 11(a)(ii) shall have occurred to the extent that such
     directors have not determined whether to exercise the Company's right of
     election under this Section 11(a)(iii). 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.

     (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 in Section 11(d)) on such record date, the Purchase
Price to be in effect after such record date shall be determined by

                                     -25-
<PAGE>

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 and shall be binding on 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

                                     -26-
<PAGE>

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.

          (d) (i) For the purpose of any computation hereunder, other than under
     Section 11(a)(iii) hereof, 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

                                     -27-
<PAGE>

     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, and for the purpose of any computation under Section 11(a)(iii)
     hereof, the "current per share market price" of a Security on any date
     shall be deemed to be the average of the daily closing prices per share of
     such Security for thirty (30) consecutive Trading Days 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 (other than the Rights), 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 (ex-dividend) 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

                                     -28-
<PAGE>

     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 Quotation 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. If on any such date no market maker is
     making a market in the Security, the fair value of such Security on such
     date (as determined in good faith by the Board of Directors of the Company)
     shall be used. 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 of the Company as 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 of the Company nor
     the Preferred Shares are publicly held or so

                                     -29-
<PAGE>

     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) Anything herein to the contrary notwithstanding, 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) or
Section 13(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 this Section 11, and the provisions
of Sections 7, 9, 10, 13 and 14 with respect to the Preferred Shares shall apply
on like terms to any such other shares.

                                     -30-
<PAGE>

     (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), 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 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

                                     -31-
<PAGE>

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

                                     -32-

<PAGE>

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.

     (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

                                     -33-
<PAGE>

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) The Company covenants and agrees that, after the Distribution Date, it
will not, except as permitted by Sections 23, 24 and 27 hereof, take (nor will
it permit any of its Subsidiaries to take) any action if at the time such action
is taken it is reasonably foreseeable that such action will diminish
substantially or otherwise eliminate the benefits intended to be afforded by the
Rights.

     (o) The Company covenants and agrees that, except for the transactions
contemplated by the Combination Agreement, it shall not, at any time after the
Distribution Date, (i) combine or consolidate with any other Person (other than
a Subsidiary of the Company in a transaction which complies with Section 11(n)),
(ii) merge with or into any other Person (other than a Subsidiary of the company
in a transaction which complies with Section 11(n)), or (iii) sell or transfer
(or permit any of its Subsidiaries to sell or transfer), in one or more
transactions, assets or earning power aggregating more than 50% of the assets or
earning power of the Company and its Subsidiaries (taken as a whole) to any
other Person or Persons (other than the Company an/or any of its Subsidiaries in
one or more transactions each of which complies with Section 11(n)) if (x) at
the time of or immediately after such combination, consolidation, merger or sale
there are any rights, warrants or other instruments or securities outstanding or
agreements in effect which would substantially diminish or otherwise eliminate
the benefits intended to be afforded by the

                                     -34-

<PAGE>

Rights or (y) prior to, simultaneously with or immediately after such
combination, combination, merger or sale, the stockholders of the Person who
constitutes, or would constitute, the "Principal Party" for purposes of Section
13(a) hereof shall have received a distribution of Rights previously owned by
such Person or any of its Affiliates and Associates.

     (p) 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(p) shall be made successively whenever such a
dividend is declared or paid or such a subdivision, combination or consolidation
is effected.

     (q) So long as the shares issuable upon the exercise of the Rights may be
listed on any national securities exchange or quotation service, the Company
shall use its best efforts to

                                     -35-
<PAGE>

cause, from and after such time as the Rights become exercisable, all shares
reserved for such issuance to be listed on such exchange or quotation service
upon official notice of issuance upon such exercise.

     (r) The Company shall use its best efforts to (i) file, as soon as
practicable following the first occurrence of a Triggering Event, a registration
statement under the Securities Act with respect to the securities purchasable
upon exercise of the Rights on an appropriate form, (ii) cause such registration
statement to become effective as soon as practicable after such filing, and
(iii) cause such registration statement to remain effective (with a prospectus
at all times meeting the requirements of the Securities Act) until the date of
the Expiration Date. The Company will also take such action as may be
appropriate under the blue sky laws of the various states. The Company may
temporarily suspend, for a period of time not to exceed 90 days, the
exercisability of the Rights in order to prepare and file such registration
statement or in order to comply with such blue sky laws. Upon any such
suspension, the Company shall issue a public announcement stating that the
exercisability of the Rights has been temporarily suspended. A further public
announcement shall state the termination of such suspension.

                                     -36-
<PAGE>

     Section 12.  Certificate of Adjusted Purchase Price or Number of Shares.
Whenever an adjustment is made as provided in Section 11 or 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 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. The
Rights Agent shall be fully protected in relying on any such certificate and on
any adjustment therein contained and may assume that no adjustment has been made
unless and until it shall have received such certificate.

     Section 13.  Consolidation, Merger or Sale or Transfer of Assets or Earning
Power.

     (a) If after the Shares Acquisition Date, directly or indirectly, (x) the
Company shall consolidate with, or merge with and into, any other Person, (y)
any Person shall consolidate with the Company, or merge with and into the
Company and the Company shall be the continuing or surviving corporation of such
merger and, in connection with such merger, all or part of the Common Shares
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 (z) 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 of the Company and its
Subsidiaries (taken as a whole) to any Person or Persons 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

                                     -37-
<PAGE>

herein) 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 validly authorized and issued, fully paid, non-assessable and
freely tradeable Common Shares of the Principal Party (as hereinafter defined),
free and clear of all liens, rights of call or first refusal, encumbrances or
other adverse claims, 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 (or, if such Right is not then
exercisable for a number of one one-hundredths of a Preferred Share, the number
of such fractional shares for which it was exercisable immediately prior to an
event described under Section 11(a)(ii) hereof) and dividing that product by (B)
50% of the then current per share market price of the Common Shares of such
Principal Party (determined pursuant to Section 11(d) hereof) on the date of
consummation of such consolidation, merger, sale or transfer; (ii) such
Principal Party shall thereafter be liable for, and shall assume, by virtue of
such consolidation, merger, sale or transfer, or otherwise, all the obligations
and duties of the Company pursuant to this Agreement; (iii) the term "Company"
shall thereafter be deemed to refer to such Principal Party and (iv) such
Principal Party 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 its Common Shares thereafter deliverable upon
the exercise of the Rights.

                                     -38-
<PAGE>

     (b)  "Principal Party" shall mean:

          (i) In the case of any transaction described in (x) or (y) of the
     first sentence of Section 13(a), the Person that is the issuer of any
     securities into which Common Shares of the Company are converted in such
     merger or consolidation, and if no securities are so issued, the Person
     that is the continuing or surviving entity of such merger or consolidation
     (including the Company if applicable); and

          (ii) in the case of any transaction described in (z) of the first
     sentence in Section 13(a), the Person that is the party receiving the
     greatest portion of the assets or earning power transferred pursuant to
     such transaction or transactions;

provided, however, that in any such case described in clauses (b)(i) and
(b)(ii): (1) if the Common Shares of such Person are not at such time and have
not been continuously over the preceding 12-month period registered under
Section 12 of the Exchange Act, and such Person is a direct or indirect
Subsidiary of another Person the Common Shares of which are and have been so
registered, "Principal Party" shall refer to such other Person; (2) in case such
Person is a Subsidiary, directly or indirectly, of more than one Person, the
Common Shares of two or more of which are and have been so registered,
"Principal Party" shall refer to whichever of such Persons is the issuer of the
Common Shares having the greatest aggregate market value; and (3) in case such
Person is owned, directly or indirectly, by a joint venture formed by two or
more Persons that are not owned, directly or indirectly, by the same Person, the
rules set forth in (1) and (2) above shall apply to each of the chains of
ownership having an interest in such joint venture as if such party were a
"Subsidiary" of both or all of such joint venturers and the

                                     -39-

<PAGE>

Principal Parties in each such chain shall bear the obligations set forth in
this Section 13 in the same ratio as their direct or indirect interests in such
Person bear to the total of such interests.

     (c) The Company shall not consummate any such consolidation, merger, sale
or transfer unless the Principal Party shall have sufficient Common Shares
authorized to permit the full exercise of the Rights and prior thereto the
Company and such Principal Party shall have executed and delivered to the Rights
Agent a supplemental agreement providing for the terms set forth in paragraphs
(a) and (b) of this Section 13 and further providing that, as soon as
practicable after the date of any consolidation, merger or sale of assets
mentioned in paragraph (a) of this Section 13, the Principal Party will:

          (i) prepare and file a registration statement under the Securities
     Act, with respect to the Rights and the securities purchasable upon
     exercise of the Rights on an appropriate form, and will use its best
     efforts to cause such registration statement to (A) become effective as
     soon as practicable after such filing and (B) remain effective (with a
     prospectus at all times meeting the requirements of the Securities Act)
     until the Expiration Date;

          (ii) deliver to holders of the Rights historical financial statements
     for the Principal Party and each of its Affiliates which comply in all
     respects with the requirements for registration on Form 10 under the
     Exchange Act; and

          (iii) take such actions as may be necessary or appropriate under the
     blue sky laws of the various states.

                                     -40-
<PAGE>

The provisions of this Section 13 shall similarly apply to successive mergers or
consolidations or sales or other transfers. In the event that one of the
transactions described in this Section 13(a) shall occur at any time after the
occurrence of a transaction described in Section 11(a)(ii) hereof, the Rights
which have not theretofore been exercised shall thereafter become exercisable in
the manner described in Section 13(a).

     (d) In no event shall the Rights Agent have any liability in respect of any
such Principal Party transactions, including without limitation, the propriety
thereof. The Rights Agent may rely and be fully protected in relying upon a
certificate of the Company stating that the provisions of this Section 13 have
been fulfilled. Notwithstanding anything in this Agreement to the contrary, the
prior written consent of the Rights Agent must be obtained in connection with
any supplemental agreement which alters the rights or duties of the Rights
Agent.

     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 may 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

                                     -41-
<PAGE>

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; provided, that such agreement shall provide that the holders of
such depositary receipts shall have all the rights,

                                     -42-
<PAGE>

privileges and 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 may 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 one-
hundredth of a Preferred Share. For the purposes of this Section 14(b), the
current market value of one one-hundredth of a Preferred Share shall be one one-
hundredth of 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)  Following the occurrence of a Triggering Event, the Company shall not
be required to issue fractions of Common Shares upon exercise of the Rights or
to distribute certificates which evidence fractional Common Shares. In lieu of
fractional Common Shares, the Company may 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 Common
Share. For purposes of this Section 14(c), the current market value of one
Common Share shall be the closing price of one 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 such exercise.

     (d)  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).

                                     -43-
<PAGE>

     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 office of
the Rights Agent designated for

                                     -44-
<PAGE>

such purposes, duly endorsed or accompanied by a proper instrument of transfer
and with appropriate forms and certificates fully executed;

     (c)  subject to Sections 6 and 7, 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 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; and

     (d)  notwithstanding anything in this Agreement to the contrary, neither
the Company nor the Rights Agent shall have any liability to any holder of a
Right or any other Person as a result of its inability to perform any of its
obligations under this Agreement by reason of any preliminary or permanent
injunction or other order, decree or ruling issued by a court of competent
jurisdiction or by a governmental, regulatory or administrative agency or
commission, or any statute, rule, regulation or executive order promulgated or
enacted by any governmental authority prohibiting or otherwise restraining
performance of such obligation.

      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

                                     -45-
<PAGE>

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 such compensation as shall be agreed to in writing between the
Company and the Rights Agent 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 arising, directly or indirectly, therefrom.

     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 Common Shares or for other securities of
the Company, instrument of assignment or transfer, power of attorney,
endorsement, affidavit, letter, opinion, notice, instruction, direction,
consent, certificate,

                                     -46-
<PAGE>

statement, or other paper or document believed by it to be genuine and to be
signed, executed by the proper person or persons, or otherwise upon the advice
of counsel as set forth in Section 20 hereof.

     The provisions of this Section 18 shall survive the expiration of the
Rights and the termination of this Agreement.

      Section 19. Merger or Consolidation or Change of Name of Rights Agent. Any
Person into which the Rights Agent or any successor Rights Agent may be merged
or with which it may be consolidated, or any Person resulting from any merger or
consolidation to which the Rights Agent or any successor Rights Agent shall be a
party, or any Person succeeding to all or substantially all 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

                                     -47-
<PAGE>

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 expressly imposed by this Agreement, and no implied duties or
obligations shall be read into this Agreement against the Rights Agent, 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 satisfactory to it
(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 and
the Rights Agent shall incur no liability or responsibility to the Company or to
any holder of any Right Certificate in respect of 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

                                     -48-
<PAGE>

Company prior to taking or suffering or omitting 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 of the Board, the Chief Executive
Officer, any Vice Chairman, the President, any Vice President, the Treasurer or
the Secretary 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.

     (c)  The Rights Agent shall be liable hereunder to the Company only for,
and shall indemnify and hold harmless the Company from and against, any and all
losses, liabilities, costs, damages and expenses (including attorney's fees)
arising out of or in connection with, the Rights Agents' gross 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

                                     -49-
<PAGE>

void pursuant to Section 7(e) 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 a certificate furnished
pursuant to Section 12 describing a change or adjustment); 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 or Common Shares to be
issued pursuant to this Agreement or any Right Certificate or as to whether any
Preferred Shares or Common Shares will, when issued, be validly authorized and
issued, fully paid and nonassessable, nor shall the Rights Agent be responsible
for the legality of the terms hereof in its capacity as an administrative agent.

     (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 Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from any
one of the Chairman of the Board, the Chief Executive Officer, any Vice
Chairman, the President, any Vice President, the Secretary or the Treasurer of
the Company, and to apply to such officers for advice or 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. Any application
by the Rights Agent for written instructions from the

                                     -50-
<PAGE>

Company may, at the option of the Rights Agent, set forth in writing any action
proposed to be taken or omitted by the Rights Agent under this Agreement and the
date on and/or after which such action shall be taken or such omission shall be
effective. The Rights Agent shall not be liable for any action taken by, or
omission of, the Rights Agent in accordance with a proposal included in any such
application on or after the date specified in such application (which date shall
not be less than five Business Days after the date such application is given,
unless any such officer shall have consented in writing to an earlier date)
unless, prior to taking any such action (or the effective date in the case of an
omission), the Rights Agent shall have received written instructions in response
to such application specifying the action to be taken or omitted.

     (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 its Subsidiaries or become pecuniarily interested in any
transaction in which the Company or its Subsidiaries may be interested, or
contract with or lend money to the Company or its Subsidiaries 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 its Subsidiaries 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

                                     -51-
<PAGE>

such act, default, neglect or misconduct, provided reasonable care was exercised
in the selection and continued employment thereof.

     (j)  If, with respect to any Rights Certificate surrendered to the Rights
Agent for exercise, transfer, split-up, combination or exchange, the certificate
attached to the form of assignment or form of election to purchase, as the case
may be, has either not been completed or indicates an affirmative response to
clause 1 and/or 2 thereof, the Rights Agent shall not take any further action
with respect to such requested exercise, transfer, split-up, combination or
exchange without first consulting with the Company.

     (k)  The Rights Agent shall not be under any duty or responsibility to
insure compliance with any applicable federal or state securities laws in
connection with the issuance, transfer or exchange of Right Certificates.

     (l)  The Rights Agent shall be under no obligation to institute any action,
suit or legal proceeding or to take any other action likely to involve expense
unless the Company or one or more holders of Right Certificates shall furnish
the Rights Agent with security and indemnity to its satisfaction for any costs
and expenses which may be incurred.

     (m)  The Rights Agent shall not be liable for failure to perform any duties
except as specifically set forth herein and no implied covenants or obligations
shall be read into this Agreement against the Rights Agent whose duties and
obligations are ministerial and shall be determined solely by the express
provisions hereof.

     Section 21. Change 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

                                     -52-
<PAGE>

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
Right 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, bank or other entity organized and doing
business under the laws of the United States or of any other state of the United
States, 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 at the time of its appointment as Rights Agent a
combined capital and surplus of at least $100 million or is an Affiliate of an
entity having a combined capital and surplus of at least $100 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

                                     -53-
<PAGE>

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 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. In addition, in connection with the issuance or
sale of Common Shares following the Distribution Date and prior to the
redemption or expiration of the Rights, the Company (a) shall, with respect to
Common Shares so issued or sold pursuant to the exercise of options or under any
employee plan or arrangement, or upon the exercise, conversion or exchange of
securities hereinafter issued by the Company, and (b) may, in any other case, if
deemed necessary or appropriate by the Board of Directors of the Company, issue
Right Certificates representing the appropriate number of Rights in connection
with such


                                     -54-
<PAGE>

issuance or sale; provided, however, that (i) no such Right Certificate shall be
issued, if, and to the extent that, the Company shall be advised by counsel that
such issuance would create a significant risk of material adverse tax
consequences to the Company or the Person to whom such Right Certificate would
be issued, and (ii) no such Right Certificate shall be issued, if, and to the
extent that, appropriate adjustment shall otherwise have been made in lieu of
the issuance thereof.

      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 the then outstanding Rights at a redemption price of $0.01 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. If redemption of the Rights is to be effective as of a future date,
the Rights shall continue to be exercisable, subject to Section 7 hereof, until
the effective date of the redemption, provided that nothing contained herein
shall preclude the Board of Directors from subsequently causing the Rights to be
redeemed at a date earlier than the previously scheduled effective date of the
redemption. The Company may, at its option, pay the Redemption Price in cash,
Common Shares (based on the current per share market price of the Common Shares
at the time of redemption) or any other form of consideration deemed appropriate
by the Board of Directors.

                                     -55-
<PAGE>

     (b)  Immediately upon the action of the Board of Directors of the Company
ordering the redemption of the Rights (or at the effective time of such
redemption established by the Board of Directors of the Company 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, with simultaneous written notice
to the Rights Agent, 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 or, if later, the effectiveness of the redemption
of the Rights pursuant to the last sentence of paragraph (a), 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. The Company may, at its option, discharge all of
its obligations with respect to the Rights by (i) issuing a press release
announcing the manner of redemption of the Rights, (ii) depositing with a bank
or trust company having a capital and surplus of at least $100,000,000, funds
necessary for such redemption, in trust, to be applied to the redemption of the
Rights so called for redemption and (iii) arranging for the mailing of the
Redemption Price to the registered holders of the Rights; then, and upon such
action, all outstanding Rights

                                     -56-
<PAGE>

Certificates shall be null and void without further action by the Company.
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, in Section 24 hereof, or in
connection with the purchase of Common Shares prior to the Distribution Date.

     Section 24.  Exchange.  (a)  The Board of Directors of the Company may, at
its option, at any time after a Triggering Event, 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 7(e) 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 paragraph (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

                                     -57-
<PAGE>

shall promptly give public notice, with simultaneous written notice to the
Rights Agent, 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 Rights (other than Rights
which have become void pursuant to the provisions of Section 7(e) 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 fraction of a Preferred Share delivered in lieu of
each Common Share shall have the same voting rights as one Common Share.

     (d)  In the event that there shall not be sufficient Common Shares or
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

                                     -58-
<PAGE>

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.

                                     -59-
<PAGE>

     (a) In case the Company shall propose at any time after the Distribution
Date (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, and to the Rights Agent, 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


                                     -60-
<PAGE>

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 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, and to the Rights Agent, 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:

               Burlington Northern Santa Fe Corporation
               2650 Lou Menk Drive
               Ft. Worth, TX 76131
               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:

               First Chicago Trust Company of New York
               525 Washington Blvd.
               Jersey City, NJ 07310
               Attention: Charles D. Keryc

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


                                     -61-
<PAGE>

first-class mail, postage prepaid, addressed to such holder at the address of
such holder as shown on the registry books of the Company. Notices or demands
sent by mail shall be deemed given or made three Business Days after the date
they are sent.

      Section 27. Supplements and Amendments. The Company may from time to time,
and the Rights Agent shall, if so directed by the Company supplement or amend
any provision of 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 amendment, supplement, addition or deletion
hereto or 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 which would adversely
affect the interests of the holders of Rights.

      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

                                     -62-
<PAGE>

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.

                                     -63-
<PAGE>

      Section 34. Determinations and Actions by the Board of Directors. The
Board of Directors of the Company shall have the exclusive power and authority
to administer this Agreement and to exercise all rights and powers specifically
granted to the Board or the Company or as may be necessary or advisable in the
administration of this Agreement, including, without limitation, the right and
power to (i) interpret the provisions of this Agreement, and (ii) make all
determinations deemed necessary or advisable for the administration of this
Agreement (including a determination to redeem or not redeem the Rights or to
amend the Agreement). All such actions, interpretations and determinations
(including, for purpose of clause (ii) below, all omissions with respect to the
foregoing) which are done or made by the Board in good faith, shall (i) be
final, conclusive and binding on the Company, the Rights Agent, the holders of
the Right Certificates and all other parties, and (ii) not subject the Board of
Directors to any liability to the holders of the Right Certificates.


                                     -64-

<PAGE>

     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.

                           BURLINGTON NORTHERN SANTA FE CORPORATION


                           By: /s/  Jeffrey R. Moreland
                              --------------------------------------------------
                              Name: Jeffrey R. Moreland
                              Its:  Senior Vice President-Law and Chief of Staff




                           FIRST CHICAGO TRUST COMPANY OF NEW YORK


                           By: /s/  Charles D. Keryc
                              -------------------------------------------------
                              Name: Charles D. Keryc
                              Its:  Managing Director
<PAGE>

                                                                       Exhibit A
                                                                       ---------

               CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS
       OF JUNIOR PARTICIPATING PREFERRED STOCK, SERIES B, $0.01 PAR VALUE

                                       of

                    BURLINGTON NORTHERN SANTA FE CORPORATION

             Pursuant to Section 151 of the General Corporation Law
                            of the State of Delaware

     Burlington Northern Santa Fe Corporation, a corporation organized and
existing under the General Corporation Law of the State of Delaware (the
"Corporation"), in accordance with the provisions of Section 103 thereof, hereby
certifies that the following resolution was adopted by the Board of Directors of
the Corporation:

     RESOLVED, that pursuant to the authority conferred upon the Board of
Directors by the Certificate of Incorporation, as amended, of the Corporation,
the Board of Directors on December 17, 1999 adopted the following resolution
creating a series of 3,000,000 shares of preferred stock designated as "Junior
Participating Preferred Stock, Series B," $0.01 par value:

     RESOLVED, that pursuant to the authority vested in the Board of Directors
of the Corporation in accordance with the provisions of its Certificate of
Incorporation, as amended, a series of preferred stock, par value $0.01 per
share, of the Corporation (such preferred stock being herein referred to as
"Preferred Stock," which term shall include any additional shares of preferred
stock of the same class heretofore or hereafter authorized to be issued by the
Corporation), consisting of 3,000,000 shares is hereby created, and the voting
powers, preferences and relative, participating, optional or other special
rights, and the qualifications, limitations or restrictions thereof, are as
follows:

     Section 1. Designation and Amount. There shall be a series of Preferred
Stock of the Corporation which shall be designated as "Junior Participating
Preferred Stock, Series B," par value $0.01 per share (hereinafter called
"Series B Preferred Stock"), and the number of shares constituting such series
shall be 3,000,000. Such number of shares may be increased or decreased by
resolution of the Board of Directors and by the filing of a certificate pursuant
to the provisions of the General Corporation Law of the State of Delaware
stating that such increase or reduction has been so authorized; provided,
however, that no decrease shall reduce the number of shares of Series B
Preferred Stock to a number less than that of the shares then outstanding plus
the number of shares of Series B Preferred Stock issuable upon exercise of

                                      -1-

<PAGE>

outstanding rights, options or warrants or upon conversion of outstanding
securities issued by the Corporation.

     Section 2.  Dividends and Distributions.
                 ---------------------------

     (A) Subject to the prior and superior rights of the holders of any shares
of any series of Preferred Stock ranking prior and superior to the shares of
Series B Preferred Stock with respect to dividends, the holders of shares of
Series B Preferred 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 to holders of record on the last business
day of March, June, September and December in each year (each such date being
referred to herein as a "Quarterly Dividend Record Date"), commencing on the
first Quarterly Dividend Record Date after the first issuance of a share or
fraction of a share of Series B Preferred Stock, in an amount per share (rounded
to the nearest cent) equal to, 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 (hereinafter defined) or a subdivision of the outstanding
shares of Common Stock (by reclassification or otherwise), declared on the
Common Stock, par value $0.01 per share, of the Corporation (the "Common Stock")
since the immediately preceding Quarterly Dividend Record Date, or, with respect
to the first Quarterly Dividend Record Date, since the first issuance of any
share or fraction of a share of Series B Preferred Stock. In the event the
Corporation shall at any time following December 31, 1999 (i) declare any
dividend on Common Stock payable in shares of Common Stock, (ii) subdivide the
outstanding Common Stock or (iii) combine the outstanding Common Stock into a
smaller number of shares, then in each such case the amount to which holders of
shares of Series B Preferred Stock were entitled immediately prior to such event
under the preceding sentence shall be adjusted by multiplying each 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
B Preferred Stock as provided in paragraph (A) above at the time it declares a
dividend or distribution on the Common Stock (other than a dividend payable in
shares of Common Stock).

     (C) No dividend or distribution (other than a dividend payable in shares of
Common Stock) shall be paid or payable to the holders of shares of Common Stock
unless, prior thereto, all accrued but unpaid dividends to the date of such
dividend or distribution shall have been paid to the holders of shares of Series
B Preferred Stock.

                                      -2-

<PAGE>

     (D)  Dividends shall begin to accrue and be cumulative on outstanding
shares of Series B Preferred Stock from the Quarterly Dividend Record Date next
preceding the date of issue of such shares of Series B Preferred Stock, unless
the date of issue of such shares is prior to the record date for the first
Quarterly Dividend Record 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 Record Date or is a date after the record date for
the determination of holders of shares of Series B Preferred Stock entitled to
receive a quarterly dividend and before such Quarterly Dividend Record Date, in
either of which events such dividends shall begin to accrue and be cumulative
from such Quarterly Dividend Record Date. Accrued but unpaid dividends shall not
bear interest. Dividends paid on the shares of Series B 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
among 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 B Preferred
Stock entitled to receive payment of a dividend or distribution declared
thereon, which record date shall be no more than 30 days prior to the date fixed
for the payment thereof.

     Section 3. Voting Rights. The holders of shares of Series B Preferred Stock
shall have the following voting rights:

     (A)  Subject to the provision for adjustment hereinafter set forth, each
one one-hundredth of a share of Series B Preferred Stock shall entitle the
holder thereof to one vote on all matters submitted to a vote of the
stockholders of the Corporation. In the event the Corporation shall at any time
following December 31, 1999 (i) declare any dividend on Common Stock payable in
shares of Common Stock, (ii) subdivide the outstanding shares of Common Stock or
(iii) combine the outstanding Common Stock into a smaller number of shares, then
in each such case the number of votes per share to which holders of shares of
Series B 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 or by law, the holders of shares
of Series B 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.

     (C)  (i)  Whenever, at any time or times, dividends payable on any share or
     shares of Series B Preferred Stock shall be in arrears in an amount equal
     to at least six full quarterly dividends (whether or not declared and
     whether or not consecutive), the holders of record of the outstanding
     Series B Preferred Stock shall have the exclusive right, voting separately
     as a single class, to elect two directors of the Corporation at a special

                                      -3-
<PAGE>

     meeting of stockholders of the Corporation or at the Corporation's next
     annual meeting of stockholders, and at each subsequent annual meeting of
     stockholders, as provided below. At elections for such directors, the
     holders of shares of Series B Preferred Stock shall be entitled to cast one
     vote for each one one-hundredth of a share of Series B Preferred Stock
     held.

          (ii)  Upon the vesting of such right of the holders of the Series B
     Preferred Stock, the maximum authorized number of members of the Board of
     Directors shall automatically be increased by two and the two vacancies so
     created shall be filled by vote of the holders of the outstanding Series B
     Preferred Stock as hereinafter set forth. A special meeting of the
     stockholders of the Corporation then entitled to vote shall be called by
     the Chairman or the President or the Secretary of the Corporation, if
     requested in writing by the holders of record of not less than 10% of the
     Series B Preferred Stock then outstanding. At such special meeting, or, if
     no such special meeting shall have been called, then at the next annual
     meeting of stockholders of the Corporation, the holders of the shares of
     the Series B Preferred Stock shall elect, voting as above provided, two
     directors of the Corporation to fill the aforesaid vacancies created by the
     automatic increase in the number of members of the Board of Directors. At
     any and all such meetings for such election, the holders of a majority of
     the outstanding shares of the Series B Preferred Stock shall be necessary
     to constitute a quorum for such election, whether present in person or by
     proxy, and such two directors shall be elected by the vote of at least a
     plurality of shares held by such stockholders present or represented at the
     meeting. Any director elected by holders of shares of the Series B
     Preferred Stock pursuant to this Section may be removed at any annual or
     special meeting, by vote of the holders of a majority of the outstanding
     shares of the Series B Preferred Stock voting as a class, with or without
     cause. In case any vacancy shall occur among the directors elected by the
     holders of the Series B Preferred Stock pursuant to this Section, such
     vacancy may be filled by the remaining director so elected, or his or her
     successor then in office, and the director so elected to fill such vacancy
     shall serve until the next meeting of stockholders for the election of
     directors. After the holders of the Series B Preferred Stock shall have
     exercised their right to elect Directors in any default period and during
     the continuance of such period, the number of Directors shall not be
     further increased or decreased except by vote of the holders of Series B
     Preferred Stock as herein provided or pursuant to the rights of any equity
     securities ranking senior to or pari passu with the Series B Preferred
     Stock.

                                      -4-
<PAGE>

          (iii) The right of the holders of the Series B Preferred Stock, voting
     separately as a class, to elect two members of the Board of Directors of
     the Corporation as aforesaid shall continue until, and only until, such
     time as all arrears in dividends (whether or not declared) on the Series B
     Preferred Stock shall have been paid or declared and set apart for payment,
     at which time such right shall terminate, except as herein or by law
     expressly provided, subject to revesting in the event of each and every
     subsequent default of the character above-mentioned. Upon any termination
     of the right of the holders of the shares of the Series B Preferred Stock
     as a class to vote for directors as herein provided, the term of office of
     all directors then in office elected by the holders of Series B Preferred
     Stock pursuant to this Section shall terminate immediately. Whenever the
     term of office of the directors elected by the holders of the Series B
     Preferred Stock pursuant to this Section shall terminate and the special
     voting powers vested in the holders of the Series B Preferred Stock
     pursuant to this Section shall have expired, the maximum number of members
     of the Board of Directors of the Corporation shall be such number as may be
     provided for in the By-laws of the Corporation irrespective of any increase
     made pursuant to the provisions of this Section.

     (D)  Except as set forth herein, holders of Series B 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 B 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 B Preferred Stock outstanding shall have
been paid in full, the Corporation shall not:

          (i)  declare or pay dividends on, make any other distributions on, or
     redeem or purchase or otherwise acquire for consideration any shares of
     stock ranking junior (either as to dividends or upon liquidation,
     dissolution or winding up) to the Series B Preferred Stock;

          (ii) declare or pay dividends on 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 B Preferred Stock,
     except dividends paid ratably on the Series B 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 on a parity (either as to dividends or upon
     liquidation, dissolution or

                                      -5-
<PAGE>

     winding up) with the Series B Preferred Stock, provided that the
     Corporation may at any time redeem, purchase or otherwise acquire shares of
     any such parity 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 B Preferred Stock; or

          (iv) purchase or otherwise acquire for consideration any shares of
     Series B 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 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,
purchase or otherwise acquire such shares at such time and in such manner.

     Section 5. Reacquired Shares. Any shares of Series B 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
Series B Preferred Stock and may be reissued as part of a new series of
Preferred Stock to be created by resolution or resolutions of the Board of
Directors, subject to the conditions and restrictions on issuance set forth
herein.

     Section 6. Liquidation, Dissolution or Winding Up. (A) Upon any voluntary
liquidation, dissolution or winding up of the Corporation, no distribution shall
be made to the holders of shares of stock ranking junior (either as to dividends
or upon liquidation, dissolution or winding up) to the Series B Preferred Stock
unless, prior thereto, the holders of shares of Series B Preferred Stock shall
have received $0.01 per share, plus an amount equal to accrued and unpaid
dividends and distributions thereon, whether or not declared, to the date of
such payment (the "Series B Liquidation Preference"). Following the payment of
the full amount of the Series B Liquidation Preference, no additional
distributions shall be made to the holders of shares of Series B Preferred Stock
unless, prior thereto, the holders of shares of Common Stock shall have received
an amount per share (the "Common Adjustment") equal to the quotient obtained by
dividing (i) the Series B Liquidation Preference by (ii) 100 (as appropriately
adjusted as set forth in subparagraph C below to reflect such events as stock
splits, stock dividends and recapitalizations with respect to the Common Stock)
(such number in clause (ii), the "Adjustment Number"). Following the payment of
the full amount of the Series B Liquidation Preference and the Common Adjustment
in respect of all outstanding shares of Series B Preferred Stock and Common
Stock, respectively, holders of Series B Preferred Stock and holders of shares
of Common Stock shall receive their ratable and proportionate share of the

                                      -6-
<PAGE>

remaining assets to be distributed in the ratio, on a per share basis, of the
Adjustment Number to 1 with respect to such Preferred Stock and Common Stock, on
a per share basis, respectively.

     (B)  In the event, however, that there are not sufficient assets available
to permit payment in full of the Series B Liquidation Preference and the
liquidation preferences of all other series of Preferred Stock, if any, which
rank on a parity with the Series B Preferred Stock, then such remaining assets
shall be distributed ratably to the holders of such parity shares in proportion
to their respective liquidation preferences.

     (C)  In the event the Corporation shall at any time following December 31,
1999, (i) declare any dividend on Common Stock payable in shares of Common
Stock, (ii) subdivide the outstanding shares of Common Stock or (iii) combine
the outstanding Common Stock into a smaller number of shares, then in each such
case the Adjustment Number in effect immediately prior to such event shall be
adjusted by multiplying such Adjustment 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.

     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 the shares of
Series B Preferred Stock shall at the same time be similarly exchanged or
changed in 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 (i) declare any dividend on
Common Stock payable in shares of Common Stock, (ii) subdivide the outstanding
Common Stock or (iii) combine the outstanding Common Stock into a smaller number
of shares, then in each such case the amount set forth in the preceding sentence
with respect to the exchange or change of shares of Series B 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. Redemption. The shares of a Series B Preferred Stock shall not
be redeemable by the Corporation. The preceding sentence shall not limit the
ability of the Corporation to purchase or otherwise deal in such shares of stock
to the extent permitted by law.

     Section 9. Ranking. The Series B Preferred Stock shall rank junior to all
other series of the Corporation's preferred stock (whether with or without par
value) as to the payment of dividends and the distribution of assets, unless the
terms of any such series shall provide otherwise.

                                      -7-
<PAGE>

     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 B Preferred Stock so as to
affect them adversely without the affirmative vote of the holders of a majority
of the outstanding shares of Series B Preferred Stock, voting separately as a
class.

     Section 11. Fractional Shares. Series B Preferred Stock may be issued in
fractions of a share which shall entitle the holder, in proportion to such
holder's fractional shares, to exercise voting rights, receive dividends,
participate in distributions and to have the benefit of all other rights of
holders of Series B Preferred Stock.

     IN WITNESS WHEREOF, the Corporation has caused this Certificate to be
signed by [Name], its [Title], and the same to be attested by [Name], its
[Title], this 18th day of December, 1999.

                                               BURLINGTON NORTHERN SANTA FE
                                               CORPORATION



                                               By:
                                                  ------------------------------
                                                  [Name]
                                                  [Title]




(SEAL)


Attest:


By:
   ------------------------------
   [Name]
   [Title]

                                      -8-
<PAGE>

                                                                       Exhibit B
                                                                       ---------

                          [Form of Right Certificate]



Certificate No. R-        ____ Rights

     NOT EXERCISABLE AFTER DECEMBER 18, 2009 OR EARLIER IF THE RIGHTS EXPIRE
     UNDER CERTAIN CIRCUMSTANCES OR ARE REDEEMED BY THE COMPANY. THE RIGHTS ARE
     SUBJECT TO REDEMPTION, AT THE OPTION OF THE COMPANY, AT $0.01 PER RIGHT ON
     THE TERMS SET FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN CIRCUMSTANCES,
     RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING PERSON (AS SUCH TERM IS DEFINED
     IN THE RIGHTS AGREEMENT) AND ANY SUBSEQUENT HOLDER OF SUCH RIGHTS MAY
     BECOME NULL AND VOID. [THE RIGHTS REPRESENTED BY THIS CERTIFICATE ARE OR
     WERE BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING PERSON
     OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS ARE
     DEFINED IN THE RIGHTS AGREEMENT). ACCORDINGLY, THIS RIGHT CERTIFICATE AND
     THE RIGHTS REPRESENTED HEREBY MAY BECOME VOID IN THE CIRCUMSTANCES
     SPECIFIED IN SECTION 7(e) OF SUCH AGREEMENT.]/*/


                               Right Certificate
                   BURLINGTON NORTHERN SANTA FE CORPORATION

     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 18, 1999 (the "Rights Agreement"),
between BURLINGTON NORTHERN SANTA FE CORPORATION, a Delaware corporation (the
"Company"), and _______________________________________, a ________ 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. (central time) on December 18, 2009, or notice of redemption or
exchange at the office of the Rights Agent (or its successors as Rights Agent)
designated for such purpose, one one-hundredth of a fully paid non-assessable
share of Junior Participating Preferred Stock, Series B, par value $0.01 per
share (the "Preferred Shares")

- ----------------
/*/  The portion of the legend in brackets shall be inserted only if applicable
     and shall replace the preceding sentence.
<PAGE>

of the Company at a purchase price of $100.00 per one one-hundredth of a share
(the "Purchase Price") upon presentation and surrender of this Right Certificate
with the appropriate Form of Election to Purchase and related Certificate duly
executed. The number of Rights evidenced by this Right Certificate (and the
number of shares which may be purchased upon exercise thereof) set forth above,
and the Purchase Price per share set forth above, are the number and Purchase
Price as of December 18, 1999, based on the Preferred Shares as constituted at
such date. Capitalized terms not defined in this Right Certificate that are
defined in the Rights Agreement shall have the meanings ascribed to them in the
Rights Agreement.

     Upon the occurrence of a Triggering Event, if the Rights evidenced by this
Right Certificate are beneficially owned by (i) an Acquiring Person or an
Affiliate or Associate of any such Acquiring Person (as such terms are defined
in the Rights Agreement), (ii) under certain circumstances specified in the
Rights Agreement, a transferee of any such Acquiring Person, Associate or
Affiliate, or (iii) under certain circumstances specified in the Rights
Agreement, a transferee of a person who, after such transfer, became an
Acquiring Person, or an Affiliate or Associate of an Acquiring Person, such
Rights shall become null and void and no holder hereof shall have any right with
respect to such Rights from and after the occurrence of any such Triggering
Event.

     As provided in the Rights Agreement, the Purchase Price and the number and
kind of Preferred Shares or other securities, 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, which
limitations of rights include the temporary suspension of the exercisability of
such Rights under certain circumstances specified in such Rights Agreement.
Copies of the Rights Agreement are on file at the above-mentioned office of the
Rights Agent and are also available upon written request to 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.

                                      -2-
<PAGE>

     Subject to the provisions of the Rights Agreement, the Rights evidenced by
this Certificate may be redeemed by the Company at its option at a redemption
price of $0.01 per Right at any time prior to the earlier of the close of
business on (i) the tenth day following the Shares Acquisition Date and (ii) the
Final Expiration Date.

     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 depository receipts), but in lieu thereof a cash
payment will be made, as provided in the Rights Agreement.

     No holder of this Right Certificate, as such, shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of 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.

                                      -3-
<PAGE>

     WITNESS the facsimile signature of the proper officers of the Company and
its corporate seal.

Dated as of
            ------- --, ---------

ATTEST: (SEAL)                                   BURLINGTON NORTHERN SANTA FE
                                                   CORPORATION


By:                                              By:
   -----------------                                -----------------
   Name:                                            Name:
   Title:                                           Title:


Countersigned:


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




By:
   ---------------------
   Authorized Signature

                                      -4-

<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.

Date:
     ----------------, ------

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

                                   Signature


Signature Guaranteed:

                                  CERTIFICATE
                                  -----------

     The undersigned hereby certifies by checking the appropriate boxes that:

     (1)  this Right Certificate [ ] is [ ] is not being sold, assigned and
     transferred by or on behalf of a Person who is or was an Acquiring Person
     or an Affiliate or Associate of any such Acquiring Person (as such terms
     are defined pursuant to the Rights Agreement)

     (2)  after due inquiry and to the best knowledge of the undersigned, it [ ]
     did [ ] did not acquire the Rights evidenced by this Right Certificate from
     any Person who is, was or subsequently became an Acquiring Person or an
     Affiliate or Associate of an Acquiring Person.


Dated:
      -------------, ------                   ----------------------------------
                                              Signature
<PAGE>

                                    NOTICE
                                    ------

     The signature to the foregoing Assignment and Certificate must correspond
to the name as written upon the face of this Right Certificate in every
particular, without alteration or enlargement or any change whatsoever.
<PAGE>

                          FORM OF ELECTION TO PURCHASE
                          ----------------------------

                      (To be executed if holder desires to
             exercise Rights represented by the Right Certificate.)

To: BURLINGTON NORTHERN SANTA FE CORPORATION

     The undersigned hereby irrevocably elects to exercise _______ Rights
represented by this Right Certificate to purchase the Preferred Shares issuable
upon the exercise of the Rights (or such other securities of the Company or of
any other person which may be issuable upon the exercise of the Rights) and
requests that certificates for such shares be issued in the name of:

Please insert social security
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 of such Rights shall
be registered in the name of and delivered to:

Please insert social security
or other identifying number:____________________________________________________

________________________________________________________________________________

                        (Please print name and address)

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

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

Dated:  ____________________, ________      ____________________________________
                                            Signature

Signature Guaranteed:

                                  CERTIFICATE
                                  -----------

     The undersigned hereby certifies by checking the appropriate boxes that:

     (1) the Rights evidenced by this Right Certificate [ ] are  [ ] are not
being exercised by or on behalf of a Person who is or was an Acquiring Person or
an Affiliate or Associate of any such Acquiring Person (as such terms are
defined pursuant to the Rights Agreement);

<PAGE>

     (2) after due inquiry and to the best knowledge of the undersigned, it [ ]
did [ ] did not acquire the Rights evidenced by this Right Certificate from any
Person who is, was or became an Acquiring Person or an Affiliate or Associate of
an Acquiring Person.

Dated:  ____________________, _________              ___________________________
                                                     Signature


                                    NOTICE
                                    ------

          The signature to the foregoing Election to Purchase and Certificate
must correspond to the name as written upon the face of this Right Certificate
in every particular, without alteration or enlargement or any change whatsoever.

                                      -2-
<PAGE>

                                                                       Exhibit C
                                                                       ---------

UNDER CERTAIN CIRCUMSTANCES, AS SET FORTH IN THE RIGHTS AGREEMENT, RIGHTS OWNED
BY OR TRANSFERRED TO ANY PERSON WHO IS OR BECOMES AN ACQUIRING PERSON (AS
DEFINED IN THE RIGHTS AGREEMENT) AND CERTAIN TRANSFEREES THEREOF WILL BECOME
NULL AND VOID AND WILL NO LONGER BE TRANSFERABLE



                            SUMMARY OF RIGHTS PLAN
                            ----------------------


     On December 18, 1999, the Board of Directors of Burlington Northern Santa
Fe Corporation (the "Company") declared a dividend distribution of one Right for
each outstanding share of common stock, par value $0.01 per share (the "Common
Stock"), of the Company to stockholders of record at the close of business on
December 31, 1999 (the "Record Date"). Except as described below, each Right,
when exercisable, entitles the registered holder to purchase from the Company
one one-hundredth of a share of Junior Participating Preferred Stock, Series B,
par value $0.01 per share (the "Preferred Stock"), at a price of $100.00 per one
one-hundredth share (the "Purchase Price"), subject to adjustment.  The
description and terms of the Rights are set forth in a Rights Agreement (the
"Rights Agreement") between the Company and First Chicago Trust Company of New
York, as Rights Agent.

     Initially, the Rights will be attached to all Common Stock certificates
representing shares then outstanding, and no separate Right certificates will be
distributed.  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") has acquired, or obtained the right to acquire, beneficial
ownership of 15% or more of the outstanding shares of Common Stock (the "Shares
Acquisition Date") or (ii) 10 business days (or such later date as may be
determined by action of the Board of Directors of the Company (the "Board of
Directors") prior to the time that any person becomes an Acquiring Person)
following the commencement of (or a public announcement of an intention to make)
a tender or exchange offer if, upon consummation thereof, such person or group
would be the  beneficial owner of 15% or more of such outstanding shares of
Common Stock (the earlier of such dates being called the "Distribution Date"),
the Rights will be evidenced by the Common Stock certificates together with a
copy of the Summary of Rights Plan and not by separate certificates.

     The Rights Agreement also provides that, until the Distribution Date, the
Rights will be transferred with and only with the Common Stock.  Until the
Distribution Date (or earlier redemption, expiration or termination of the
Rights), the transfer of any certificates for Common Stock, with or without a
copy of this Summary of Rights Plan, will also constitute the

<PAGE>

transfer of the Rights associated with the Common Stock represented by such
certificates. 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 Stock as of the close of business on the
Distribution Date and, thereafter, such separate Right Certificates alone will
evidence the Rights.

     The Rights are not exercisable until the Distribution Date and will expire
at the earliest of (i) December 18, 2009 (the "Final Expiration Date"), (ii) the
redemption of the Rights by the Company as described below, (iii) the time
immediately prior to the effectiveness of the merger of Western Merger Sub,
Inc., a Delaware corporation with and into the Company pursuant to a Combination
Agreement dated as of December 18, 1999, as such Combination Agreement may be
amended from time to time (the "Combination Agreement"), and (iv) the exchange
of all Rights for Common Stock as described below.

     In the event that any person (other than the Company, its affiliates or any
person receiving newly-issued shares of Common Stock directly from the Company)
becomes the beneficial owner of 15% or more of the then outstanding shares of
Common Stock, each holder of a Right will thereafter have the right to receive,
upon exercise at the then current exercise price of the Right, Common Stock (or,
in certain circumstances, cash, property or other securities of the Company)
having a value equal to two times the exercise price of the Right.  The Rights
Agreement contains an exemption for any issuance of Common Stock by the Company
directly to any person (for example, in a private placement or an acquisition by
the Company in which Common Stock is used as consideration), even if that person
would become the beneficial owner of 15% or more of the Common Stock, provided
that such person does not acquire any additional shares of Common Stock.

     In the event that, at any time following the Shares Acquisition Date, the
Company is acquired in a merger or other business combination transaction or 50%
or more of the Company's 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 exercise at the then current exercise price of the Right, common
stock of the acquiring or surviving company having a value equal to two times
the exercise price of the Right.

     Notwithstanding the foregoing, following the occurrence of any of the
events set forth in the preceding two paragraphs (the "Triggering Events"), any
Rights that are, or (under certain circumstances specified in the Rights
Agreement) were, beneficially owned by any Acquiring Person will immediately
become null and void.

     The Purchase Price payable, and the number of shares of Preferred Stock or
other securities or property issuable, upon exercise of the Rights, are subject
to adjustment from time to time to prevent dilution, among other circumstances,
in the event of a stock dividend on, or a

                                      -2-
<PAGE>

subdivision, split, combination, consolidation or reclassification of, the
Preferred Stock or the Common Stock, or a reverse split of the outstanding
shares of Preferred Stock or the Common Stock.

     At any time after the acquisition by a person or group of affiliated or
associated persons of beneficial ownership of 15% or more of the outstanding
Common Stock and prior to the acquisition by such person or group of 50% or more
of the outstanding Common Stock, the Board of Directors may exchange the Rights
(other than Rights owned by such person or group, which have become void), in
whole or in part, at an exchange ratio of one share of Common Stock 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
the Purchase Price.  The Company will not be required to issue fractional shares
of Preferred Stock or Common Stock (other than fractions in multiples of one
one-hundredths of a share of Preferred Stock) and, in lieu thereof, an
adjustment in cash may be made based on the market price of the Preferred Stock
or Common Stock on the last trading date prior to the date of exercise.

     At any time after the date of the Rights Agreement until the time that a
person becomes an Acquiring Person, the Board of Directors may redeem the Rights
in whole, but not in part, at a price of $0.01 per Right (the "Redemption
Price"), which may (at the option of the Company) be paid in cash, shares of
Common Stock or other consideration deemed appropriate by the Board of
Directors.  Upon the effectiveness of any action of the Board of Directors
ordering redemption of the Rights, the Rights will terminate and the only right
of the holders of Rights will be to receive the Redemption Price.

     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.

     The provisions of the Rights Agreement may be amended by the Company,
except that any amendment adopted after the time that a person becomes an
Acquiring Person may not adversely affect the interests of holders of Rights.

     As of December 15, 1999, there were 454,945,828 shares of Common Stock
outstanding and 30,048,057 shares of Common Stock reserved for issuance under
employee benefit plans. Each outstanding share of Common Stock on December 31,
1999 will receive one Right. Three million  (3,000,000) shares of Preferred
Stock will be reserved for issuance in the event of exercise of the Rights.

     The Rights have certain anti-takeover effects.  The Rights will cause
substantial dilution to a person or group that attempts to acquire the Company
without conditioning the offer on the

                                      -3-
<PAGE>

Rights being redeemed or a substantial number of Rights being acquired, and
under certain circumstances the Rights beneficially owned by such a person or
group may become void. The Rights should not interfere with the transaction
contemplated by the Combination Agreement or any other merger or other business
combination approved by the Board of Directors because, if the Rights would
become exercisable as a result of such merger or business combination, the Board
of Directors may, at its option, at any time prior to the time that any Person
becomes an Acquiring Person, redeem all (but not less than all) of the then
outstanding Rights at the Redemption Price.

     A copy of the Rights Agreement is being filed with the Securities and
Exchange Commission as an exhibit to a Registration Statement on Form 8-A.  This
summary description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement.

                                      -4-

<PAGE>

                    [Logo of Burlington Northern Santa Fe]

                                                                    Exhibit 99.2

Contact:  Richard A. Russack                             FOR IMMEDIATE RELEASE
          (817) 352-6425

                      BNSF Adopts Shareholder Rights Plan

     FORT WORTH, Texas, December 22, 1999 -- Burlington Northern Santa Fe
Corporation (BNSF) today announced that its Board of Directors has adopted a
shareholder rights plan.  In connection with this plan, the Company's Board of
Directors declared a dividend of one Preferred Stock Purchase Right for each
outstanding share of BNSF Common Stock.  The dividend will be distributed on
December 31, 1999, to shareholders of record on that date.  Shareholders are
automatically entitled to the Rights corresponding to their shares owned, and no
physical distribution of new certificates will be made at this time.  The
distribution is not taxable to shareholders under U.S. laws.

     Subject to certain exceptions, each Right will be exercisable only if a
person or group acquires 15 percent or more of BNSF Common Stock or announces a
tender or exchange offer which would result in ownership of 15 percent or more
of the Common Stock.

     Each Right, which is not presently exercisable and is represented by BNSF's
Common Stock certificate, will entitle its holder to buy one one-hundredth of a
share of Series B Junior Participating Preferred Stock at an exercise price of
$100.00, subject to adjustment.  Following the acquisition of 15 percent or more
of BNSF Common Stock by a person or group, each holder of a Right (other than
the acquiring person or group) will be entitled to purchase one share of Common
Stock per Right at one-half of the market price.  In the event of a subsequent
combination, merger or other acquisition of the Company, each holder of a Right
will be entitled to buy shares of common stock of the acquiring entity at one-
half of the market price of those shares.

     A Right is redeemable for $.01 per Right, subject to adjustment, before the
control by a person or group of 15 percent or more of BNSF's Common Stock.  Each
Right will expire on December 18, 2009.  Further information will be mailed to
all BNSF shareholders after December 31, 1999.

     Adoption of the plan was required by the terms of the combination
transaction with the Canadian National Railway Company announced on Monday,
December 20, 1999.

<PAGE>

     Through its subsidiary, The Burlington Northern and Santa Fe Railway
Company, BNSF, headquartered in Fort Worth, Texas, operates one of the largest
rail networks in North America, with 34,000 route miles of track covering 28
states and two Canadian provinces.

                                 #     #     #



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