INDEPENDENT BANK CORP
424B1, 1997-05-19
STATE COMMERCIAL BANKS
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<PAGE>
PROSPECTUS
 
                      1,000,000 TRUST PREFERRED SECURITIES
 
                          INDEPENDENT CAPITAL TRUST I
 
                  9.28% CUMULATIVE TRUST PREFERRED SECURITIES
             (LIQUIDATION AMOUNT $25 PER TRUST PREFERRED SECURITY)
         FULLY AND UNCONDITIONALLY GUARANTEED, AS DESCRIBED HEREIN, BY
 
                                     [LOGO]
 
                            ------------------------
 
    The 9.28% Cumulative Trust Preferred Securities (the "Trust Preferred
Securities") offered hereby will represent undivided beneficial interests in
Independent Capital Trust I, a trust formed under the laws of the State of
Delaware (the "Trust"). Independent Bank Corp., a Massachusetts corporation (the
"Corporation" or "Independent"), will be the owner of all of the beneficial
interests represented by common securities of the Trust (the "Common
Securities," and together with the Trust Preferred Securities, the "Trust
Securities"). The Bank of New York is the Property Trustee of the Trust. The
Trust exists for the exclusive purposes of issuing the Trust Securities and
investing the proceeds thereof in the 9.28% Junior Subordinated Deferrable
Interest Debentures (the "Junior Subordinated Debentures"), to be issued by the
Corporation, and certain other limited activities described herein. The Junior
Subordinated Debentures are scheduled to mature on May 19, 2027, which date may
be shortened (such date, as it may be shortened, the "Stated Maturity Date") to
a date not earlier than
 
                                                        (CONTINUED ON NEXT PAGE)
                         ------------------------------
 
    SEE "RISK FACTORS" BEGINNING ON PAGE 10 FOR A DISCUSSION OF CERTAIN FACTORS
THAT SHOULD BE CONSIDERED BY PROSPECTIVE INVESTORS IN EVALUATING AN INVESTMENT
IN THE TRUST PREFERRED SECURITIES.
                             ---------------------
THE SECURITIES OFFERED HEREBY ARE NOT DEPOSITS OR OTHER OBLIGATIONS OF A BANK
        AND ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE
                   CORPORATION OR ANY OTHER GOVERNMENTAL
                                    AGENCY.
                            ------------------------
 THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
      EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
    SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
          PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
                     REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                                                PRICE TO          UNDERWRITING        PROCEEDS TO
                                                                 PUBLIC          COMMISSION(1)        TRUST(2)(3)
<S>                                                        <C>                 <C>                 <C>
Per Trust Preferred Security.............................        $25.00               (2)                $25.00
Total(4).................................................     $25,000,000             (2)             $25,000,000
</TABLE>
 
(1) The Corporation and the Trust have agreed to indemnify the Underwriters
    against certain liabilities, including certain liabilities under the
    Securities Act. See "Underwriting."
 
(2) In view of the fact that the proceeds of the sale of the Trust Preferred
    Securities will be invested in the Junior Subordinated Debentures, the
    Corporation, as issuer of the Junior Subordinated Debentures, has agreed to
    pay the Underwriters, as compensation, $0.94 per Trust Preferred Security,
    or $940,000 in the aggregate ($1,081,000 in the aggregate if the
    over-allotment option is exercised in full). See "Underwriting."
 
(3) Before deducting estimated expenses of $380,000 payable by the Corporation.
 
(4) The Trust has granted the Underwriters a 30-day option to purchase up to
    150,000 additional Trust Preferred Securities on the same terms and
    conditions set forth above solely to cover over-allotments, if any. If this
    option is exercised in full, the total Price to Public and Proceeds to Trust
    will be $28,750,000. See "Underwriting."
                           --------------------------
 
    The Trust Preferred Securities are offered by the Underwriters, subject to
prior sale, when, as and if issued to and accepted by the Underwriters and
subject to approval of certain legal matters by counsel for the Underwriters and
to certain other conditions. The Underwriters reserve the right to withdraw,
cancel or modify such offer and to reject orders in whole or in part. It is
expected that delivery of the Trust Preferred Securities will be made through
the facilities of the Depository Trust Company in New York, New York on or about
May 19, 1997 against payment therefor in immediately available funds.
 
LEGG MASON WOOD WALKER                                        PIPER JAFFRAY INC.
 
           INCORPORATED
 
                  THE DATE OF THIS PROSPECTUS IS MAY 14, 1997
<PAGE>
(CONTINUED FROM THE PREVIOUS PAGE)
 
May 19, 2002 if certain conditions are met (including the Corporation having
received prior regulatory approval to do so if then required under applicable
capital guidelines or regulatory policies). The Trust Preferred Securities will
have a preference over the Common Securities under certain circumstances with
respect to cash distributions and amounts payable on liquidation, redemption or
otherwise. See "Description of Trust Preferred Securities--Subordination of
Common Securities."
 
    The Trust Preferred Securities will be represented by one or more global
certificates registered in the name of The Depository Trust Company
("Depositary" or "DTC") or its nominee. Beneficial interests in such Trust
Preferred Securities will be shown on, and transfers thereof will be effected
through, records maintained by DTC and its participants. Except as described
herein, Trust Preferred Securities in certificate form will not be issued in
exchange for global certificates. See "Book-Entry Issuance."
 
    Application has been made to list the Trust Preferred Securities on the
Nasdaq National Market. Although the Underwriters have indicated an intention to
make a market in the Trust Preferred Securities, the Underwriters are not
obligated to make a market in the Trust Preferred Securities, and any market
making may be discontinued at any time at the sole discretion of the
Underwriters. There can be no assurance that a market will develop for the Trust
Preferred Securities. See "Risk Factors--Absence of Existing Public Market" and
"Underwriting."
 
    Holders of the Trust Preferred Securities will be entitled to receive
cumulative cash distributions arising from the payment of interest on the Junior
Subordinated Debentures, accruing from the date of original issuance and payable
quarterly in arrears on the last day of March, June, September and December each
year, commencing June 30, 1997, at the annual rate of 9.28% of the Liquidation
Amount of $25 per Trust Preferred Security ("Distributions"). So long as no
Debenture Event of Default (as defined herein) has occurred and is continuing,
the Corporation will have the right to defer payments of interest on the Junior
Subordinated Debentures at any time and from time to time for a period not
exceeding 20 consecutive quarterly periods with respect to each deferral period
(each, an "Extension Period"), provided that no Extension Period shall end on a
date other than an Interest Payment Date (as defined herein) or extend beyond
the Stated Maturity Date. Upon the termination of any such Extension Period and
the payment of all amounts then due, the Corporation may elect to begin a new
Extension Period, subject to the requirements set forth herein. If and for so
long as interest payments on the Junior Subordinated Debentures are so deferred,
Distributions on the Trust Preferred Securities also will be deferred and the
Corporation will not be permitted, subject to certain exceptions described
herein, to declare or pay any cash distributions with respect to the
Corporation's capital stock or to make any payment with respect to debt
securities of the Corporation that rank PARI PASSU with or junior to the Junior
Subordinated Debentures. During an Extension Period, interest on the Junior
Subordinated Debentures will continue to accrue (and the amount of Distributions
to which holders of the Trust Preferred Securities are entitled will continue to
accumulate) at the rate of 9.28% per annum, compounded quarterly, and holders of
Trust Preferred Securities will be required to accrue such deferred interest
income for United States federal income tax purposes prior to the receipt of the
cash attributable to such income. See "Description of Junior Subordinated
Debentures--Option to Extend Interest Payment Date" and "Certain Federal Income
Tax Consequences--Interest Income and Original Issue Discount."
 
    The Corporation will, through the Guarantee, the Trust Agreement, the Junior
Subordinated Debentures and the Indenture (each as defined herein), taken
together, fully, irrevocably and unconditionally guarantee all of the Trust's
obligations under the Trust Preferred Securities. See "Relationship Among the
Trust Preferred Securities, the Junior Subordinated Debentures and the
Guarantee--Full and Unconditional Guarantee." The Guarantee and the Common
Securities Guarantee will guarantee payments of Distributions and payments upon
liquidation of the Trust or redemption of the Trust Preferred Securities, but in
each case only to the extent that the Trust has funds on hand legally available
therefor and has failed to make such payments, as described herein. See
"Description of Guarantee." If the Corporation fails to
 
                                       2
<PAGE>
make a required payment on the Junior Subordinated Debentures, the Trust will
not have sufficient funds to make the related payments, including Distributions,
on the Trust Preferred Securities. The Guarantee and the Common Securities
Guarantee will not cover any such payment when the Trust does not have
sufficient funds on hand legally available therefor. In such event, a holder of
Trust Preferred Securities may institute a legal proceeding directly against the
Corporation to enforce its rights in respect of such payment. See "Description
of Junior Subordinated Debentures--Enforcement of Certain Rights by Holders of
Trust Preferred Securities." The obligations of the Corporation under the
Guarantee, the Common Securities Guarantee and the Junior Subordinated
Debentures will be unsecured and will rank subordinate and junior in right of
payment to all Senior and Subordinated Indebtedness (as defined in "Description
of Junior Subordinated Debentures--Subordination"). See "Risk Factors--Ranking
of Subordinated Obligations under the Guarantee and the Junior Subordinated
Debentures." In addition, because the Corporation is a holding company, the
Junior Subordinated Debentures, the Common Securities Guarantee and the
Guarantee effectively will be subordinated to all existing and future
liabilities, including deposits, of the Corporation's subsidiaries.
 
    The Trust Securities will be subject to mandatory redemption in a Like
Amount (as defined herein), (i) in whole but not in part, on the Stated Maturity
Date upon repayment of the Junior Subordinated Debentures, (ii) in whole but not
in part, at any time prior to May 19, 2002, contemporaneously with the optional
prepayment of the Junior Subordinated Debentures by the Corporation, upon the
occurrence and continuation of a Special Event (as defined herein), and (iii) in
whole or in part, on or after May 19, 2002, contemporaneously with the optional
prepayment by the Corporation of all or part of the Junior Subordinated
Debentures, in each case, at a redemption price equal to the aggregate
Liquidation Amount of such Trust Securities, plus accumulated but unpaid
Distributions thereon to the date of redemption (the "Redemption Date"). See
"Description of Trust Preferred Securities--Redemption."
 
    The Corporation will have the right at any time to terminate the Trust and,
after satisfaction of liabilities of creditors of the Trust as required by
applicable law, to cause a Like Amount of the Junior Subordinated Debentures to
be distributed to the holders of the Trust Securities in liquidation of the
Trust, subject to (i) the Corporation having received an opinion of counsel to
the effect that such distribution will not be a taxable event to holders of
Trust Preferred Securities and (ii) the prior approval of the Board of Governors
of the Federal Reserve System (the "Federal Reserve") if then required under
applicable capital guidelines or policies of the Federal Reserve. Unless the
Junior Subordinated Debentures are distributed to the holders of the Trust
Preferred Securities, in the event of a liquidation of the Trust as described
herein, after satisfaction of liabilities to creditors of the Trust as required
by applicable law, the holders of the Trust Securities generally will be
entitled to receive a Liquidation Amount of $25 per Trust Preferred Security
plus accumulated and unpaid Distributions thereon to the date of payment. See
"Description of Trust Preferred Securities--Liquidation of the Trust and
Distribution of Junior Subordinated Debentures."
 
                             ----------------------
 
    CERTAIN PERSONS PARTICIPATING IN THE OFFERING MADE HEREBY MAY ENGAGE IN
TRANSACTIONS THAT STABILIZE, MAINTAIN, OR OTHERWISE AFFECT THE PRICE OF THE
TRUST PREFERRED SECURITIES. SUCH TRANSACTIONS MAY INCLUDE STABILIZING, THE
PURCHASE OF TRUST PREFERRED SECURITIES TO COVER SYNDICATE SHORT POSITIONS AND
THE IMPOSITION OF PENALTY BIDS. FOR A DESCRIPTION OF THESE ACTIVITIES, SEE
"UNDERWRITING."
 
                                       3
<PAGE>
                             AVAILABLE INFORMATION
 
    The Corporation is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith, files reports, proxy statements and other information with
the Securities and Exchange Commission ("Commission"). Such reports, proxy
statements and other information may be inspected and copied at the public
reference facilities maintained by the Commission at Room 1024, 450 Fifth
Street, N.W., Washington, D.C. 20549 and at the Commission's regional offices at
7 World Trade Center, 13th Floor, Suite 1300, New York, New York 10048 and Suite
1400, Citicorp Center, 500 West Madison Street, Chicago, Illinois 60661. Copies
of such material may also be obtained by mail from the Public Reference Section
of the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549 at
prescribed rates. If available, such information also may be accessed through
the Commission's electronic data gathering, analysis and retrieval system
("EDGAR") via electronic means, including the Commission's home page on the
Internet (http://www.sec.gov.). The Corporation's common stock is traded on the
Nasdaq National Market. Such reports, proxy statements and other information
concerning the Corporation also may be inspected at the offices of the National
Association of Securities Dealers, Inc., 1735 K Street, N.W., Washington D.C.
20006.
 
    No separate financial statements of the Trust have been included herein. The
Corporation and the Trust do not consider that such financial statements would
be material to holders of the Trust Preferred Securities because the Trust is a
newly-formed special purpose entity, has no operating history or independent
operations and is not engaged in and does not propose to engage in any activity
other than holding as trust assets the Junior Subordinated Debentures, issuing
the Trust Securities and engaging in incidental activities. See "Independent
Capital Trust I," "Description of Trust Preferred Securities," "Description of
Junior Subordinated Debentures" and "Description of Guarantee." In addition, the
Corporation does not expect that the Trust will file reports, proxy statements
and other information under the Exchange Act with the Commission.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The following documents filed by the Corporation with the Commission are
incorporated into this Prospectus by reference:
 
    1. The Corporation's Annual Report on Form 10-K for the year ended December
31, 1996.
 
    All documents subsequently filed by the Corporation pursuant to Section
13(a), 13(c), 14 or 15(d) of the Exchange Act after the date hereof and prior to
the termination of the offering of the Trust Preferred Securities offered hereby
shall be deemed to be incorporated by reference into this Prospectus and to be a
part of this Prospectus from the date of filing of such document. Any statement
contained herein or in a document incorporated or deemed to be incorporated by
reference herein shall be deemed to be modified or superseded for purposes of
this Prospectus to the extent that a statement contained herein or in any other
subsequently filed document which also is or is deemed to be incorporated by
reference herein modifies or supersedes such statement. Any statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Prospectus.
 
    As used herein, the terms "Prospectus" and "herein" mean this Prospectus,
including the documents incorporated or deemed to be incorporated herein by
reference, as the same may be amended, supplemented or otherwise modified from
time to time. Statements contained in this Prospectus as to the contents of any
contract or other document referred to herein do not purport to be complete, and
where reference is made to the particular provisions of such contract or other
document, such provisions are qualified in all respects by reference to all of
the provisions of such contract or other document.
 
    The Corporation will provide without charge to any person to whom this
Prospectus is delivered, on the written or oral request of such person, a copy
of any or all of the foregoing documents incorporated by reference herein (other
than exhibits unless such exhibits are specifically incorporated by reference in
such documents). Requests for such documents should be directed to: Independent
Bank Corp., 288 Union Street, Rockland, Massachusetts 02370, Attention:
Shareholder Relations (telephone (617) 878-6100).
 
                                       4
<PAGE>
                                    SUMMARY
 
    THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY BY THE MORE DETAILED
INFORMATION APPEARING ELSEWHERE IN THIS PROSPECTUS. AS USED HEREIN, (I) THE
"INDENTURE" MEANS THE INDENTURE, TO BE DATED AS OF MAY 19, 1997, AS AMENDED AND
SUPPLEMENTED FROM TIME TO TIME, BETWEEN THE CORPORATION AND THE BANK OF NEW
YORK, AS TRUSTEE (THE "DEBENTURE TRUSTEE"), RELATING TO THE JUNIOR SUBORDINATED
DEBENTURES, (II) THE "TRUST AGREEMENT" MEANS THE AMENDED AND RESTATED
DECLARATION OF TRUST RELATING TO THE TRUST AMONG THE CORPORATION, AS SPONSOR,
THE BANK OF NEW YORK, AS PROPERTY TRUSTEE (THE "PROPERTY TRUSTEE"), THE BANK OF
NEW YORK (DELAWARE), AS DELAWARE TRUSTEE (THE "DELAWARE TRUSTEE"), AND THE
ADMINISTRATIVE TRUSTEES NAMED THEREIN (COLLECTIVELY, WITH THE PROPERTY TRUSTEE
AND DELAWARE TRUSTEE, THE "ISSUER TRUSTEES"), (III) THE "GUARANTEE" MEANS THE
GUARANTEE AGREEMENT RELATING TO THE TRUST PREFERRED SECURITIES BETWEEN THE
CORPORATION AND THE BANK OF NEW YORK, AS GUARANTEE TRUSTEE (THE "GUARANTEE
TRUSTEE") AND (IV) THE "COMMON GUARANTEE" MEANS THE GUARANTEE AGREEMENT RELATING
TO THE COMMON SECURITIES.
 
                             INDEPENDENT BANK CORP.
 
    The Corporation is the holding company of Rockland Trust Company (the
"Bank"), a Massachusetts trust company which was chartered in 1907. Independent
is headquartered in Rockland, Massachusetts and at December 31, 1996, the
Corporation had consolidated assets of $1.1 billion, deposits of $918.6 million
and stockholders' equity of $81.1 million.
 
    Through the Bank, the Corporation offers a full range of commercial and
retail banking and trust services through its network of 33 banking offices,
seven commercial lending centers, and two trust and financial services offices
located in the Plymouth, Norfolk, and Bristol Counties of Southeastern
Massachusetts. The Corporation is the only locally-based commercial bank in
Plymouth County. As a community focused commercial bank, the Corporation seeks
to service the needs of local customers in its market by developing long-term
deposit and lending relationships. As such, the Corporation has become a
prominent financial institution in Plymouth County, which represents the
majority of its market area. At June 30, 1996 (the most recent date for deposit
market share information), the Bank had approximately 16.6% of the deposits in
Plymouth County. That amount represents approximately 169% of market share of
its closest competitor. In addition, on the lending side of its business, the
Corporation has been the leading originator of residential mortgages in Plymouth
County for the last five years.
 
    In its lending activities, the Bank has emphasized the origination of
residential and commercial loans within its primary market areas. At December
31, 1996, the Bank's gross loan portfolio consisted of 29.0% mortgage loans
collateralized by commercial real estate, 28.5% mortgage loans collateralized by
residential real estate, 17.9% commercial loans, 4.5% real estate construction
loans, and 20.1% consumer loans. The Bank stresses asset quality through its
emphasis on lending in its local markets where management is most qualified to
make educated underwriting decisions and the application of generally
conservative underwriting criteria.
 
                          INDEPENDENT CAPITAL TRUST I
 
    The Trust is a statutory business trust formed under Delaware law upon the
filing of a certificate of trust with the Delaware Secretary of State. The
Trust's business and affairs are conducted by the Issuer Trustees: the Property
Trustee, the Delaware Trustee and the three individual Administrative Trustees,
who are officers of the Corporation. The Trust exists for the exclusive purposes
of (i) issuing and selling the Trust Securities, (ii) using the proceeds from
the sale of the Trust Securities to acquire the Junior Subordinated Debentures
issued by the Corporation and (iii) engaging in only those other activities
necessary, advisable or incidental thereto. The Junior Subordinated Debentures
will be the sole assets of the Trust and, accordingly, payments under the Junior
Subordinated Debentures will be the sole revenue of the Trust. All of the Common
Securities will be owned by the Corporation. The Trust's principal offices are
 
                                       5
<PAGE>
located c/o The Bank of New York, 101 Barclay Street, New York, New York 10286
and its telephone number is (212) 815-5359.
 
                                  THE OFFERING
 
<TABLE>
<S>                             <C>
Trust Preferred Securities
    Issuer....................  Independent Capital Trust I
Securities Offered............  1,000,000 Trust Preferred Securities. The Trust Preferred
                                Securities represent undivided beneficial interests in the
                                Trust's assets, which will consist solely of the Junior
                                Subordinated Debentures and payments thereunder. The Trust
                                has granted the Underwriters a 30-day option to purchase up
                                to 150,000 additional Trust Preferred Securities at the
                                initial Price to the Public, solely to cover over-
                                allotments, if any. See "Underwriting."
Distributions.................  The Distributions payable on each Trust Preferred Security
                                will be fixed at a rate per annum of 9.28% of the
                                Liquidation Amount of $25 per Trust Preferred Security, will
                                be cumulative, will accrue from the date of issuance of the
                                Trust Preferred Securities, and will be payable quarterly in
                                arrears on the last day of March, June, September and
                                December of each year, commencing on June 30, 1997 (subject
                                to possible deferral as described below). The amount of each
                                Distribution due with respect to the Trust Preferred
                                Securities will include amounts accrued through the date the
                                Distribution payment is due. See "Description of the Trust
                                Preferred Securities-- Distributions."
Extension Periods.............  So long as no Debenture Event of Default (as defined herein)
                                has occurred and is continuing, the Corporation shall have
                                the right to defer the payment of interest on the Junior
                                Subordinated Debentures. During an Extension Period,
                                Distributions on Trust Preferred Securities will be
                                deferred. No Extension Period will exceed 20 consecutive
                                quarterly periods, end on a date other than an Interest
                                Payment Date or extend beyond the Stated Maturity Date. See
                                "Description of Junior Subordinated Debentures--Option to
                                Extend Interest Payment Date" and "Certain Federal Income
                                Tax Consequences--Interest Income and Original Issue
                                Discount."
Maturity......................  The Junior Subordinated Debentures will mature on May 19,
                                2027 which date may be shortened (such date, as it may be
                                shortened, the "Stated Maturity Date") to a date not earlier
                                than May 19, 2002 if certain conditions are met (including
                                the Corporation having received prior approval of the
                                Federal Reserve to do so if then required under applicable
                                capital guidelines or policies of the Federal Reserve).
</TABLE>
 
                                       6
<PAGE>
 
<TABLE>
<S>                             <C>
Ranking.......................  The Trust Preferred Securities will rank PARI PASSU, and
                                payments thereon will be made pro rata, with the Common
                                Securities except as described under "Description of Trust
                                Preferred Securities-- Subordination of Common Securities."
                                The Junior Subordinated Debentures will rank PARI PASSU with
                                all other junior subordinated debentures (if any) issued by
                                the Corporation (the "Other Debentures"), which are issued
                                and sold (if at all) to other trusts established by the
                                Corporation (if any), in each case similar to the Trust
                                ("Other Trusts"), and will constitute unsecured obligations
                                of the Corporation and will rank subordinate and junior in
                                right of payment to all current and future Senior and
                                Subordinated Indebtedness to the extent and in the manner
                                set forth in the Indenture. See "Description of Junior
                                Subordinated Debentures." The Guarantee will rank PARI PASSU
                                with all other guarantees (if any) issued by the Corporation
                                with respect to trust preferred securities (if any) issued
                                by Other Trusts ("Other Guarantees") and will constitute an
                                unsecured obligation of the Corporation and will rank
                                subordinate and junior in right of payment to all Senior
                                Indebtedness to the extent and in the manner set forth in
                                the Guarantee Agreement. See "Description of Guarantee." In
                                addition, because the Corporation is a holding company, the
                                Junior Subordinated Debentures and the Guarantee will be
                                effectively subordinated to all existing and future
                                liabilities of the Corporation's subsidiaries, including the
                                Bank's deposit liabilities. See "Description of Junior
                                Subordinated Debentures--Subordination."
Redemption....................  The Trust Preferred Securities will be subject to mandatory
                                redemption in a Like Amount, (i) in whole but not in part,
                                on the Stated Maturity Date upon repayment of the Junior
                                Subordinated Debentures, (ii) in whole but not in part, at
                                any time prior to May 19, 2002, contemporaneously with the
                                optional prepayment of the Junior Subordinated Debentures by
                                the Corporation upon the occurrence and continuation of a
                                Special Event (as defined herein) and (iii) in whole or in
                                part, on or after May 19, 2002, contemporaneously with the
                                optional prepayment by the Corporation of all or part of the
                                Junior Subordinated Debentures, in each case, at a
                                redemption price equal to the accrued and unpaid
                                Distributions on the Trust Preferred Securities so redeemed
                                to the Redemption Date, plus 100% of the Liquidation Amount
                                thereof. See "Description of Trust Preferred
                                Securities--Redemption" and "Description of Junior
                                Subordinated Debentures."
Distribution of Junior
  Subordinated Debentures.....  The Corporation has the right at any time to terminate the
                                Trust and cause the Junior Subordinated Debentures to be
                                distributed to holders of Trust Securities in liquidation of
                                the Trust, subject to the Corporation having received (i) an
                                opinion of counsel that such distribution will not be a
                                taxable event to the holders of the Trust Preferred
                                Securities and (ii) prior approval of the Federal Reserve to
                                do so if then required under applicable capital guidelines
                                or policies of the Federal Reserve. See "Description of the
                                Trust Preferred Securities--Distribution of Junior
                                Subordinated Debentures."
</TABLE>
 
                                       7
<PAGE>
 
<TABLE>
<S>                             <C>
Absence of Market for the
  Trust Preferred
  Securities..................  The Trust Preferred Securities will be a new issue of
                                securities for which there currently is no market. Although
                                the Underwriters have informed the Trust and the Corporation
                                that they currently intend to make a market in the Trust
                                Preferred Securities, the Underwriters are not obligated to
                                do so, and any such market making may be discontinued at any
                                time without notice. Accordingly, there can be no assurance
                                as to the development or liquidity of any market for the
                                Trust Preferred Securities. The Trust Preferred Securities
                                have been approved for quotation on the Nasdaq National
                                Market under the symbol INDBP. See "Underwriting."
Guarantee.....................  The Corporation has guaranteed the payment of Distributions
                                and payments on liquidation or redemption of the Trust
                                Preferred Securities, but only in each case to the extent of
                                funds held by the Trust, as described herein. The
                                Corporation and the Trust believe that, taken together, the
                                obligations of the Corporation under the Guarantee, the
                                Trust Agreement, the Junior Subordinated Debentures and the
                                Indenture provide, in the aggregate, a full, irrevocable and
                                unconditional guaranty, on a subordinated basis, of all of
                                the obligations of the Corporation relating to the Trust
                                Preferred Securities. The obligations of the Corporation
                                under the Guarantee and the Trust Preferred Securities are
                                subordinate and junior in right of payment to all current
                                and future Senior and Subordinated Indebtedness of the
                                Corporation. If the Trust has insufficient funds to pay
                                Distributions on the Trust Preferred Securities (i.e., if
                                the Corporation has failed to make required payments under
                                the Junior Subordinated Debentures), a holder of the Trust
                                Preferred Securities would have the right to institute a
                                legal proceeding directly against the Corporation to enforce
                                payment of such Distributions to such holder. See
                                "Description of Junior Subordinated Debentures--Enforcement
                                of Certain Rights by Holders of the Trust Preferred
                                Securities," "Debenture Events of Default" and "Description
                                of Guarantee."
Limited Voting Rights.........  Holders of Trust Preferred Securities generally will have
                                limited voting rights relating only to the modification of
                                the Trust Preferred Securities and the exercise of the
                                Trust's rights as holder of Junior Subordinated Debentures.
                                Holders of Trust Preferred Securities will not be entitled
                                to vote to appoint, remove or replace, or to increase or
                                decrease the number of, the Issuer Trustees, which voting
                                rights are vested exclusively in the holder of the Common
                                Securities except upon the occurrence of certain events
                                described herein.
Rating........................  The Trust Preferred Securities are rated "BB-" by Duff &
                                Phelps Credit Rating Co. ("Duff & Phelps"), which is below
                                investment grade. Ratings are not a recommendation to
                                purchase, hold or sell the Trust Preferred Securities, as
                                ratings do not comment as to market price or suitability for
                                a particular investor. The ratings are based on current
                                information furnished to Duff & Phelps by the Corporation
                                and obtained from other sources. The ratings may be changed,
                                suspended or withdrawn at any time as a result of changes
                                in, or unavailability of, such information.
</TABLE>
 
                                       8
<PAGE>
 
<TABLE>
<S>                             <C>
Nasdaq National Market
  Symbol......................  INDBP
Use of Proceeds...............  All of the proceeds to the Trust from the sale of the Trust
                                Securities will be invested by the Trust in the Junior
                                Subordinated Debentures. The Corporation intends to use the
                                net proceeds from the sale of the Junior Subordinated
                                Debentures for general corporate purposes, including
                                contributions to the Bank to fund its operations and the
                                funding of repurchases of the Corporation's common stock
                                which may be made from time to time. Initially, the net
                                proceeds may be used to make short-term investments. See
                                "Use of Proceeds."
Risk Factors..................  For a discussion of considerations relevant to an investment
                                in the Trust Preferred Securities which should be carefully
                                considered by prospective investors, see "Risk Factors."
</TABLE>
 
                                       9
<PAGE>
                                  RISK FACTORS
 
    PROSPECTIVE PURCHASERS OF THE TRUST PREFERRED SECURITIES SHOULD CAREFULLY
REVIEW THE INFORMATION CONTAINED ELSEWHERE IN THIS PROSPECTUS AND SHOULD
PARTICULARLY CONSIDER THE FOLLOWING MATTERS. INFORMATION CONTAINED IN THIS
PROSPECTUS CONTAINS "FORWARD-LOOKING STATEMENTS" WHICH CAN BE IDENTIFIED BY THE
USE OF FORWARD-LOOKING TERMINOLOGY SUCH AS "BELIEVES," "EXPECTS," "MAY," "WILL,"
"SHOULD," "PROJECTED," "CONTEMPLATES" OR "ANTICIPATES" OR THE NEGATIVE THEREOF
OR OTHER VARIATIONS THEREON OR COMPARABLE TERMINOLOGY. NO ASSURANCE CAN BE GIVEN
THAT THE FUTURE RESULTS COVERED BY THE FORWARD-LOOKING STATEMENTS WILL BE
ACHIEVED. CERTAIN OF THE FOLLOWING MATTERS CONSTITUTE CAUTIONARY STATEMENTS
IDENTIFYING IMPORTANT FACTORS WITH RESPECT TO SUCH FORWARD-LOOKING STATEMENTS,
INCLUDING CERTAIN RISKS AND UNCERTAINTIES, THAT COULD CAUSE ACTUAL RESULTS TO
VARY MATERIALLY FROM THE FUTURE RESULTS COVERED IN SUCH FORWARD-LOOKING
STATEMENTS. OTHER FACTORS, SUCH AS THE GENERAL STATE OF THE ECONOMY, COULD ALSO
CAUSE ACTUAL RESULTS TO VARY MATERIALLY FROM THE FUTURE RESULTS COVERED IN SUCH
FORWARD-LOOKING STATEMENTS.
 
RANKING OF SUBORDINATED OBLIGATIONS UNDER THE GUARANTEE AND THE JUNIOR
  SUBORDINATED DEBENTURES; LIMITATIONS ON SOURCE OF FUNDS
 
    The obligations of the Corporation under the Guarantee issued by it for the
benefit of the holders of Trust Preferred Securities, as well as under the
Junior Subordinated Debentures, will be unsecured and will rank subordinate and
junior in right of payment to all current and future Senior and Subordinated
Indebtedness to the extent and in the manner set forth in the Guarantee and the
Indenture, respectively. No payment may be made of the principal of, or interest
on the Junior Subordinated Debentures, or in respect of any redemption,
retirement, purchase or other acquisition of any of the Junior Subordinated
Debentures, at any time when (i) there shall have occurred and be continuing a
default in any payment in respect of any Senior and Subordinated Indebtedness,
or there has been an acceleration of the maturity thereof because of a default,
or (ii) in the event of the acceleration of the maturity of the Junior
Subordinated Debentures, until payment has been made on all Senior and
Subordinated Indebtedness. At December 31, 1996, the Corporation had no Senior
Indebtedness outstanding. Because the Corporation is a holding company, the
right of the Corporation to participate in any distribution of assets of any
subsidiary upon such subsidiary's liquidation or reorganization or otherwise
(and thus the ability of holders of the Trust Preferred Securities to benefit
indirectly from such distribution) is subject to the prior claims of creditors
of that subsidiary (including depositors, in the case of the Bank), except to
the extent that the Corporation may itself be recognized as a creditor of that
subsidiary. At December 31, 1996, the subsidiary of the Corporation had total
liabilities (excluding liabilities owed to the Corporation) of $1.0 billion.
Accordingly, the Junior Subordinated Debentures effectively will be subordinated
to all existing and future liabilities of the Corporation's subsidiary and
holders of Junior Subordinated Debentures should look only to the assets of the
Corporation for payments on the Junior Subordinated Debentures. The Guarantee
will constitute an unsecured obligation of the Corporation and will rank
subordinate and junior in right of payment to all current and future Senior and
Subordinated Indebtedness in the same manner as the Junior Subordinated
Debentures. None of the Indenture, the Guarantee or the Trust Agreement places
any limitation on the amount of secured or unsecured debt, including Senior and
Subordinated Indebtedness, that may be incurred by the Corporation or any of its
subsidiaries. See "Description of Guarantee--Status of the Guarantee" and
"Description of Junior Subordinated Debentures--'General" and "--Subordination."
 
    The ability of the Trust to pay amounts due on the Trust Preferred
Securities is solely dependent upon the Corporation making payments on the
Junior Subordinated Debentures as and when required.
 
    The Corporation is a holding company and almost all of the operating assets
of the Corporation are owned by the Corporation's subsidiary. The Corporation
relies primarily on dividends from the Bank to pay dividends to its stockholders
and to meet its obligations for payment of its corporate expenses. There are
regulatory limitations on the payment of dividends directly or indirectly to the
Corporation from the Bank. As of December 31, 1996, under applicable banking
statutes and the Bank's dividend policy, the total capital available for payment
of dividends by the Bank to the Corporation was approximately $24
 
                                       10
<PAGE>
million. However, federal and state bank regulatory agencies have the power to
prohibit any act, including the payment of dividends, if such act would reduce
the Bank's capital to a point that, in their opinion, would render the Bank
undercapitalized and thus constitute an unsafe or unsound banking practice. In
addition to restrictions on the payment of dividends, the Bank is subject to
certain restrictions imposed by federal law on any extensions of credit to, and
certain other transactions with, the Corporation and certain other affiliates,
and on investments in stock or other securities thereof. Such restrictions
prevent the Corporation and such other affiliates from borrowing from the Bank
unless the loans are secured by various types of collateral. Further, such
secured loans, other transactions and investments by the Bank are generally
limited in amount as to the Corporation and as to each of such other affiliates
to 10% of the Bank's capital and surplus and as to the Corporation and all of
such other affiliates to an aggregate of 20% of the Bank's capital and surplus.
 
OPTION TO EXTEND INTEREST PAYMENT PERIOD; TAX CONSEQUENCES; MARKET PRICE
  CONSEQUENCES
 
    So long as no Debenture Event of Default (as defined herein) shall have
occurred and be continuing, the Corporation will have the right under the
Indenture to defer payments of interest on the Junior Subordinated Debentures at
any time or from time to time for a period not exceeding 20 consecutive
quarterly periods with respect to each Extension Period, provided that no
Extension Period shall end on a date other than an Interest Payment Date or
extend beyond the Stated Maturity Date. As a consequence of any such deferral,
quarterly Distributions on the Trust Securities by the Trust will be deferred
(and the amount of Distributions to which holders of the Trust Securities are
entitled will accumulate additional Distributions thereon at the rate of 9.28%
per annum, compounded quarterly) from the relevant payment date for such
Distributions during any such Extension Period. During the pendency of any
Extension Period, the Corporation generally will be prohibited from declaring or
paying dividends on the Corporation's capital stock or from making payments with
respect to debt securities which rank PARI PASSU with or junior to the Junior
Subordinated Debentures. See "Description of Trust Preferred Securities--
Distributions."
 
    Prior to the termination of any such Extension Period, the Corporation may
further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed 20 consecutive quarterly periods, end on a
date other than an Interest Payment Date or to extend beyond the Stated Maturity
Date. Upon the termination of any Extension Period and the payment of all
interest then accrued and unpaid on the Junior Subordinated Debentures (together
with interest thereon at the annual rate of 9.28%, compounded quarterly, to the
extent permitted by applicable law), the Corporation may elect to begin a new
Extension Period, subject to the above requirements. There is no limitation on
the number of times that the Corporation may elect to begin an Extension Period.
See "Description of Trust Preferred Securities--Distributions" and "Description
of Junior Subordinated Debentures--Option to Extend Interest Payment Date."
 
    The Corporation has no current plan to exercise its right to defer payments
of interest on the Junior Subordinated Debentures. However, should the
Corporation exercise its right to defer payments of interest on the Junior
Subordinated Debentures, each holder of Trust Preferred Securities will be
required to accrue income (in the form of original issue discount ("OID")) in
respect of the deferred stated interest allocable to its Trust Securities for
United States federal income tax purposes, which will be allocated but not
distributed to holders of Trust Securities. As a result, each holder of Trust
Preferred Securities will recognize income for United States federal income tax
purposes in advance of the receipt of cash and will not receive the cash related
to such income from the Trust if the holder disposes of the Trust Preferred
Securities prior to the record date for the payment of Distributions thereafter.
See "Certain Federal Income Tax Consequences--Interest Income and Original Issue
Discount" and "--Sales of Trust Preferred Securities."
 
    Should the Corporation elect to exercise its right to defer payments of
interest on the Junior Subordinated Debentures in the future, the market price
of the Trust Preferred Securities is likely to be
 
                                       11
<PAGE>
affected. A holder that disposes of its Trust Preferred Securities during an
Extension Period, therefore, might not receive the same return on its investment
as a holder that continues to hold its Trust Preferred Securities. In addition,
the mere existence of the Corporation's right to defer payments of interest on
the Junior Subordinated Debentures may cause the market price of the Trust
Preferred Securities to be more volatile than the market prices of other
securities that are not subject to such deferrals.
 
SPECIAL EVENT REDEMPTION
 
    Upon the occurrence and continuation of a Special Event (defined as a Tax
Event, an Investment Company Event or a Regulatory Capital Event (in each case
as defined under "Description of Junior Subordinated Debentures")) (whether
occurring before or after May 19, 2002) the Corporation will have the right to
prepay the Junior Subordinated Debentures in whole (but not in part) at 100% of
the principal amount together with accrued but unpaid interest to the date fixed
for redemption within 90 days following the occurrence of such Special Event and
therefore cause a mandatory redemption of the Trust Preferred Securities at a
redemption price equal to the aggregate Liquidation Amount of such Trust
Preferred Securities, plus accrued and unpaid interest thereon. The exercise of
such right is subject to the Corporation having received any required regulatory
approval. See "Description of Trust Preferred Securities--Redemption."
 
PROPOSED TAX LEGISLATION
 
    On February 6, 1997, as part of President Clinton's Fiscal 1998 Budget
Proposal, the United States Treasury Department proposed legislation that would,
among other things, deny an issuer a deduction for United States federal income
tax purposes for the payment of interest on instruments with characteristics
similar to the Junior Subordinated Debentures. If the proposed legislation were
enacted in its current form, it is not expected to apply to the Junior
Subordinated Debentures since the proposed effective date for this provision is
the date of first committee action. There can be no assurances, however, that
the proposed legislation, if enacted, or similar legislation enacted after the
date hereof would not adversely affect the tax treatment of the Junior
Subordinated Debentures, resulting in a Tax Event, which would permit the
Corporation, upon the approval of the Federal Reserve if then required under
applicable capital guidelines or policies of the Federal Reserve, to cause a
redemption of the Trust Preferred Securities by electing to prepay the Junior
Subordinated Debentures. See "Description of Trust Preferred
Securities--Redemption" and "Description of Junior Subordinated Debentures." See
also "Certain Federal Income Tax Consequences--Proposed Tax Legislation."
 
LIQUIDATION DISTRIBUTION OF JUNIOR SUBORDINATED DEBENTURES
 
    The Corporation will have the right at any time to terminate the Trust and,
after satisfaction of liabilities to creditors of the Trust as required by
applicable law, to cause the Junior Subordinated Debentures to be distributed to
the holders of the Trust Preferred Securities in liquidation of the Trust. Such
right is subject to (i) the Corporation having received an opinion of counsel to
the effect that such distribution will not be a taxable event to the holders of
the Trust Preferred Securities and (ii) the prior approval of the Federal
Reserve to do so if then required under applicable capital guidelines or
policies of the Federal Reserve and the receipt of any other required regulatory
approval. Under current United States federal income tax law, a distribution of
Junior Subordinated Debentures upon the dissolution of the Trust would not be a
taxable event to holders of the Trust Preferred Securities. Upon the occurrence
of a Special Event, a dissolution of the Trust in which holders of the Trust
Preferred Securities receive cash would be a taxable event to such holders. See
"Certain Federal Income Tax Consequences--Receipt of Junior Subordinated
Debentures or Cash Upon Liquidation of the Trust."
 
                                       12
<PAGE>
SHORTENING OF STATED MATURITY OF JUNIOR SUBORDINATED DEBENTURES
 
    The Corporation will have the right at any time to shorten the maturity of
the Junior Subordinated Debentures to a date not earlier than five years from
the date of issuance and thereby cause the Trust Preferred Securities to be
redeemed on such earlier date. The exercise of such right is subject to the
Corporation having received prior approval of the Federal Reserve if then
required under applicable capital guidelines or policies of the Federal Reserve.
See "Description of Junior Subordinated Debentures--Redemption."
 
POSSIBLE ADVERSE EFFECT ON MARKET PRICES
 
    There can be no assurance as to the market prices for the Trust Preferred
Securities or the Junior Subordinated Debentures that may be distributed in
exchange for Trust Preferred Securities if a termination of the Trust were to
occur. Accordingly, the Trust Preferred Securities or the Junior Subordinated
Debentures may trade at a discount from the price that the investor paid to
purchase the Trust Preferred Securities offered hereby. Because holders of Trust
Preferred Securities may receive Junior Subordinated Debentures in liquidation
of the Trust and because Distributions are otherwise limited to payments on the
Junior Subordinated Debentures, prospective purchasers of the Trust Preferred
Securities are also making an investment decision with regard to the Junior
Subordinated Debentures and should carefully review all the information
regarding the Junior Subordinated Debentures contained herein. See "Description
of Junior Subordinated Debentures."
 
RIGHTS UNDER THE GUARANTEE
 
    The Guarantee will guarantee to the holders of the Trust Preferred
Securities the following payments, to the extent not paid by or on behalf of the
Trust: (i) any accumulated and unpaid Distributions required to be paid on the
Trust Preferred Securities, to the extent that the Trust has funds on hand
legally available therefor at such time, (ii) the redemption price with respect
to the Trust Preferred Securities called for redemption, to the extent that the
Trust has funds on hand legally available therefor at such time and (iii) upon a
voluntary or involuntary termination, winding up or liquidation of the Trust
(unless the Junior Subordinated Debentures are distributed to holders of the
Trust Preferred Securities), the lesser of (a) the aggregate of the Liquidation
Amount and all accumulated and unpaid Distributions to the date of payment, to
the extent that the Trust has funds on hand legally available therefor at such
time, and (b) the amount of assets of the Trust remaining available for
distribution to holders of the Trust Preferred Securities at such time, after
the satisfaction of liabilities to creditors of the Trust as provided by
applicable law.
 
    The holders of a majority in Liquidation Amount of the Trust Preferred
Securities will have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Guarantee Trustee in
respect of the Guarantee or to direct the exercise of any trust power conferred
upon the Guarantee Trustee under the Guarantee. Any holder of the Trust
Preferred Securities may institute a legal proceeding directly against the
Corporation to enforce its rights under the Guarantee without first instituting
a legal proceeding against the Trust, the Guarantee Trustee or any other person
or entity. If the Corporation defaults on its obligation to pay amounts payable
under the Junior Subordinated Debentures, the Trust will not have sufficient
funds for the payment of Distributions or amounts payable on redemption of the
Trust Preferred Securities or otherwise, and, in such event, holders of the
Trust Preferred Securities will not be able to rely upon the Guarantee for
payment of such amounts. Instead, in the event a Debenture Event of Default
shall have occurred and be continuing and such event is attributable to the
failure of the Corporation to pay the principal or interest (including
Additional Sums, as defined below, if any), on the Junior Subordinated
Debentures on the payment date on which such payment is due and payable, then a
holder of Trust Preferred Securities may institute a legal proceeding directly
against the Corporation for enforcement of payment to such holder of the
aggregate Liquidation Amount of the Trust Preferred Securities of such holder (a
"Direct Action"). Notwithstanding any payments made to a holder
 
                                       13
<PAGE>
of Trust Preferred Securities by the Corporation in connection with a Direct
Action, the Corporation shall remain obligated to pay the principal and interest
(including Additional Sums, if any), on the Junior Subordinated Debentures, and
the Corporation shall be subrogated to the rights of the holder of such Trust
Preferred Securities with respect to payments on the Trust Preferred Securities
to the extent of any payments made by the Corporation to such holder in any
Direct Action. Except as described herein, holders of Trust Preferred Securities
will not be able to exercise directly any other remedy available to the holders
of the Junior Subordinated Debentures or to assert directly any other rights in
respect of the Junior Subordinated Debentures. See "Description of Junior
Subordinated Debentures--Enforcement of Certain Rights by Holders of Trust
Preferred Securities," "--Debenture Events of Default" and "Description of
Guarantee." The Trust Agreement will provide that each holder of Trust Preferred
Securities by acceptance thereof agrees to the provisions of the Indenture. The
Bank of New York will act as Guarantee Trustee and will hold the Guarantee for
the benefit of the holders of the Trust Preferred Securities. The Bank of New
York will also act as Property Trustee and as Debenture Trustee under the
Indenture. The Bank of New York (Delaware) will act as Delaware Trustee under
the Trust Agreement.
 
LIMITED COVENANTS
 
    The covenants in the Indenture are limited, and there are no covenants
relating to the Corporation in the Trust Agreement. As a result, neither the
Indenture nor the Trust Agreement protects holders of Junior Subordinated
Debentures, or Trust Preferred Securities, respectively, in the event of a
material adverse change in the Corporation or the Corporation's financial
condition or results of operations or limits the ability of the Corporation or
any subsidiary to incur additional indebtedness. Therefore, the provisions of
these governing instruments should not be considered a significant factor in
evaluating whether the Corporation will be able to comply with its obligations
under the Junior Subordinated Debentures or the Guarantee.
 
LIMITED VOTING RIGHTS
 
    Holders of Trust Preferred Securities generally will have limited voting
rights relating only to the modification of the Trust Preferred Securities and
the exercise of the Trust's rights as holder of Junior Subordinated Debentures.
Holders of Trust Preferred Securities will not be entitled to vote to appoint,
remove or replace, or to increase or decrease the number of, the Issuer
Trustees, which voting rights are vested exclusively in the holder of the Common
Securities except upon the occurrence of certain events described herein. The
Property Trustee, the Administrative Trustees and the Corporation may amend the
Trust Agreement without the consent of holders of Trust Preferred Securities to
ensure that the Trust will be classified for United States federal income tax
purposes as a grantor trust. Holders of Trust Preferred Securities will have no
voting rights with respect to any matters submitted to a vote of the
Corporation's stockholders. See "Description of Trust Preferred
Securities--Voting Rights; Amendment of the Trust Agreement" and "--Removal of
Issuer Trustees."
 
ABSENCE OF EXISTING PUBLIC MARKET
 
    There is no existing market for the Trust Preferred Securities. The Trust
Preferred Securities have been approved for quotation on the Nasdaq National
Market under the symbol INDBP. There can be no assurance that an active and
liquid trading market for the Trust Preferred Securities will develop or that a
continued listing of the Trust Preferred Securities will be available on the
Nasdaq National Market. Although the Underwriters have informed the Trust and
the Corporation that the Underwriters intend to make a market in the Trust
Preferred Securities offered hereby, the Underwriters are not obligated to do so
and any such market-making activity may be terminated at any time without notice
to the holders of the Trust Preferred Securities. Future trading prices of the
Trust Preferred Securities will depend on many factors including, among other
things, prevailing interest rates, the operating results and financial condition
of the Corporation, and the market for similar securities.
 
                                       14
<PAGE>
TRADING CHARACTERISTICS OF THE TRUST PREFERRED SECURITIES
 
    The Trust Preferred Securities may trade at a price that does not fully
reflect the value of accrued but unpaid interest with respect to the underlying
Junior Subordinated Debentures. A holder who uses the accrual method of
accounting for tax purposes (and a cash method holder, if the Junior
Subordinated Debentures are deemed to have been issued with OID) and who
disposes of its Trust Preferred Securities between record dates for payments of
distributions thereon will be required to include accrued but unpaid interest on
the Junior Subordinated Debentures through the date of disposition in income as
ordinary income (i.e., interest or, possibly, OID), and to add such amount to
its adjusted tax basis in its share of the underlying Junior Subordinated
Debentures deemed disposed of. To the extent the selling price is less than the
holder's adjusted tax basis (which will include all accrued but unpaid
interest), a holder will recognize a capital loss. Subject to certain limited
exceptions, capital losses cannot be applied to offset ordinary income for
United States federal income tax purposes. See "Certain Federal Income Tax
Consequences--Interest Income and Original Issue Discount" and "--Sales of Trust
Preferred Securities."
 
                                       15
<PAGE>
                             INDEPENDENT BANK CORP.
 
    The Corporation is the holding company of the Bank, a Massachusetts trust
company which was chartered in 1907. Independent is headquartered in Rockland,
Massachusetts and at December 31, 1996, the Corporation had consolidated assets
of $1.1 billion, deposits of $918.6 million and stockholder's equity of $81.1
million.
 
    Through the Bank, the Corporation provides a full range of commercial and
retail banking and trust services through its network of 33 banking offices,
seven commercial lending centers, and two trust and financial services offices
located in the Plymouth, Norfolk, and Bristol Counties of Southeastern
Massachusetts. The Corporation is the only locally based commercial bank in
Plymouth County. As a community focused commercial bank, the Corporation seeks
to service the needs of local customers in its market by developing long-term
deposit and lending relationships. As such, the Corporation has become a
prominent financial institution in Plymouth County, which represents the
majority of its market area. At June 30, 1996 (the most recent date for deposit
market share information), the Bank had approximately 16.6% of the deposits in
Plymouth County. That amount represents approximately 169% of market share of
its closest competitor. In addition, on the lending side of its business, the
Corporation has been the leading originator of residential mortgages in Plymouth
County for the last five years.
 
    In its lending activities, the Bank has emphasized the origination of
residential and commercial loans within its primary market areas. At December
31, 1996, the Bank's gross loan portfolio consisted of 29.0% mortgage loans
collateralized by commercial real estate, 28.5% mortgage loans collateralized by
residential real estate, 17.9% commercial loans, 4.5% real estate construction
loans, and 20.1% consumer loans. The Bank stresses asset quality through its
emphasis on lending in its local markets where management is most qualified to
make educated underwriting decisions and the application of generally
conservative underwriting criteria.
 
    The Corporation is registered as a bank holding company under the Bank
Holding Company Act of 1956, as amended ("BHCA"), and as such is subject to
regulation by the Federal Reserve. The Bank is subject to regulation and
examination by the Commissioner of Banks of the Commonwealth of Massachusetts
(the "Commissioner") and the Federal Deposit Insurance Corporation ("FDIC"). The
majority of Rockland's deposit accounts are insured to the maximum extent
permitted by law by the Bank Insurance Fund ("BIF") which is administered by the
FDIC. In 1994, the Bank purchased the deposits of three branches of a failed
savings and loan association from the Resolution Trust Corporation. These
deposits are insured to the maximum extent permitted by law by the Savings
Association Insurance Fund ("SAIF").
 
    The Corporation currently is in compliance with all regulatory capital
requirements. At December 31, 1996, the Corporation had Tier 1 capital and total
capital equal to 10.89% and 12.15% of total risk-adjusted assets, respectively,
and Tier 1 leverage capital equal to 7.35% of total assets. The Corporation
reported net income of $11.6 million, or $0.79 per share, for the year ended
December 31, 1996, which equated to a 15.2% return of average equity and 1.13%
return on average assets.
 
    The principal executive offices of the Corporation are located at 288 Union
Street, Rockland, Massachusetts 02370, and its telephone number is (617)
878-6100.
 
                                       16
<PAGE>
                                USE OF PROCEEDS
 
    All of the gross proceeds from the sale of the Trust Preferred Securities
and the Common Securities will be invested by the Trust in the Junior
Subordinated Debentures. The estimated net proceeds of approximately $23,680,000
($27,289,000 if the Underwriters' over-allotment option is exercised in full)
will be available to the Corporation for general corporate purposes, including
contributions to the Bank to fund its operations, the funding of one or more
future acquisitions and the funding of repurchases of the Corporation's common
stock which may be made from time to time. From time to time, the Corporation
investigates and holds discussions and negotiations in connection with possible
transactions with other financial institutions and holding companies thereof. As
of the date of this Prospectus, the Corporation has not entered into any
agreements or understandings with respect to any such acquisitions or any other
material transactions of the type referred to above. Initially, the net proceeds
may be used to make short-term investments.
 
    The Trust Preferred Securities will be eligible to qualify as Tier 1 Capital
under the capital guidelines of the Federal Reserve, provided that under current
Federal Reserve guidelines no more than 25% of the Corporation's Tier 1 Capital
may comprise Trust Preferred Securities and other capital securities and
cumulative preferred stock of the Corporation.
 
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
    The following table sets forth the ratios of earnings to fixed charges of
the Corporation on a consolidated basis for the respective periods indicated.
 
<TABLE>
<CAPTION>
                                                                         YEAR ENDED DECEMBER 31,
                                                          -----------------------------------------------------
<S>                                                       <C>        <C>        <C>        <C>        <C>
                                                            1996       1995       1994       1993       1992
                                                          ---------  ---------  ---------  ---------  ---------
Ratios of Earnings to Fixed Charges:
  Including interest on deposits........................    1.54x      1.51x      1.43x      1.22x      1.01x
  Excluding interest on deposits........................    4.26x      5.00x      5.66x      4.54x      1.25x
</TABLE>
 
    For purposes of computing the ratios of earnings to fixed charges, earnings
represent net income (loss) before extraordinary items and cumulative effect of
changes in accounting principles plus applicable income taxes and fixed charges.
Fixed charges, include gross interest expense (exclusive of interest on deposits
in one case and inclusive of such interest in the other) and one-third of rent
expenses which approximates the interest expense of such charges.
 
                                       17
<PAGE>
                                 CAPITALIZATION
 
    The following table sets forth the unaudited consolidated capitalization of
the Corporation as of December 31, 1996, and such capitalization as adjusted, to
give effect to the consummation of the offering of the Trust Preferred
Securities offered hereby. The following data should be read in conjunction with
the financial information included in documents incorporated herein by reference
or included herein. See "Incorporation of Certain Documents by Reference."
<TABLE>
<CAPTION>
                                                                        DECEMBER 31, 1996
                                                                    --------------------------
<S>                                                                 <C>           <C>
                                                                       ACTUAL     AS ADJUSTED
                                                                    ------------  ------------
 
<CAPTION>
                                                                      (DOLLARS IN THOUSANDS)
<S>                                                                 <C>           <C>
Deposits..........................................................  $    918,572  $    918,572
Advances from Federal Home Loan Bank..............................        78,000        78,000
Federal funds purchased and assets sold under agreements to
  repurchase......................................................           840           840
Treasury tax and loan notes.......................................         2,296         2,296
Other liabilities.................................................        11,975        11,975
                                                                    ------------  ------------
Total liabilities.................................................  $  1,011,683  $  1,011,683
                                                                    ------------  ------------
Corporation-obligated mandatorily redeemable trust preferred
  securities of subsidiary trust holding solely junior
  subordinated debentures of the Corporation(1)...................       --             25,000
                                                                    ------------  ------------
Stockholders' equity:
  Preferred stock, par value $.01 per share, 1,000,000 shares
    authorized, none issued.......................................       --            --
  Common stock, par value $0.01 per share, 30,000,000 shares
    authorized, 14,604,501 shares issued..........................           146           146
  Surplus.........................................................        44,433        44,433
  Retained earnings...............................................        36,666        36,666
  Unrealized loss on securities available for sale, net of tax....          (135)         (135)
                                                                    ------------  ------------
Total stockholders' equity........................................        81,110        81,110
                                                                    ------------  ------------
Total liabilities, minority interest in subsidiaries and
  stockholders' equity............................................  $  1,092,793  $  1,117,793
                                                                    ------------  ------------
                                                                    ------------  ------------
</TABLE>
 
- ------------------------
 
(1) Reflects the Trust Preferred Securities at their issue price, and does not
    give effect to the over-allotment option granted to the Underwriters. See
    "Underwriting." As described herein, the sole assets of the Trust, which is
    a subsidiary of the Corporation, will be $25,774,000 aggregate principal
    amount of the Junior Subordinated Debentures (including the amounts
    attributable to the issuance of the Common Securities of the Trust), which
    will mature on May 19, 2027. The Corporation will own all of the Common
    Securities issued by the Trust.
 
                                       18
<PAGE>
                              ACCOUNTING TREATMENT
 
    For financial reporting purposes, the Trust will be treated as a subsidiary
of the Corporation and, accordingly, the accounts of the Trust will be included
in the consolidated financial statements of the Corporation. The Trust Preferred
Securities will be presented as a separate line item in the consolidated balance
sheets of the Corporation, entitled "Corporation-Obligated Mandatorily
Redeemable Trust Preferred Securities of Subsidiary Trust Holding Solely Junior
Subordinated Debentures of the Corporation" and appropriate disclosures about
the Trust Preferred Securities, the Guarantee and the Junior Subordinated
Debentures will be included in the notes to the consolidated financial
statements of the Corporation. For financial reporting purposes, the Corporation
will record Distributions payable on the Trust Preferred Securities as a
minority interest expense in its consolidated statements of income.
 
                                       19
<PAGE>
                              RECENT DEVELOPMENTS
                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
 
    The summary consolidated financial data as of and for the three month
periods ended March 31, 1997 and 1996 have been derived from the unaudited
consolidated financial statements of the Corporation which have been prepared by
management on the same basis as the audited consolidated financial statements of
the Corporation incorporated by reference herein and, in the opinion of
management of the Corporation, reflect all adjustments, consisting of only
normal recurring adjustments, necessary for a fair presentation of such data as
of such dates.
 
<TABLE>
<CAPTION>
                                                                                        MARCH 31,    DECEMBER 31,
                                                                                           1997          1996
                                                                                       ------------  ------------
<S>                                                                                    <C>           <C>
BALANCE SHEET DATA:
Total assets.........................................................................  $  1,118,767   $1,092,793
Loans, net of unearned discount......................................................       715,714      695,406
Securities held to maturity..........................................................       301,182      290,894
Securities available for sale........................................................        31,463       26,449
Total deposits.......................................................................       909,370      918,572
Stockholders' equity.................................................................        82,908       81,110
Nonperforming loans..................................................................         4,287        4,462
Nonperforming assets.................................................................         4,833        4,733
Reserve for possible loan losses.....................................................        12,142       12,221
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                              THREE MONTHS
                                                                                            ENDED MARCH 31,
                                                                                       --------------------------
<S>                                                                                    <C>           <C>
                                                                                           1997          1996
                                                                                       ------------  ------------
OPERATIONS DATA:
Interest income......................................................................  $     20,626   $   18,564
Interest expense.....................................................................         8,799        7,699
                                                                                       ------------  ------------
Net interest income..................................................................        11,827       10,865
Provision for possible loan losses...................................................           500          250
                                                                                       ------------  ------------
Net interest income after provision for loan losses..................................        11,327       10,615
Non-interest income..................................................................         3,157        3,143
Non-interest expense.................................................................         9,788        9,687
                                                                                       ------------  ------------
Income before income taxes...........................................................         4,696        4,071
Income taxes.........................................................................         1,699        1,494
                                                                                       ------------  ------------
Net income...........................................................................  $      2,997   $    2,577
                                                                                       ------------  ------------
                                                                                       ------------  ------------
PER SHARE DATA:
Net income...........................................................................  $        .20   $      .18
Cash dividends.......................................................................           .08          .06
Book value, end of period............................................................          5.67         5.10
</TABLE>
 
                                       20
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                 AT OR FOR THE THREE
                                                                                                  MONTHS ENDED MARCH
                                                                                                         31,
                                                                                                 --------------------
<S>                                                                                              <C>        <C>
                                                                                                   1997       1996
                                                                                                 ---------  ---------
SELECTED FINANCIAL RATIOS(1):
Return on average assets.......................................................................       1.09%      1.06%
Return on average equity.......................................................................      14.55      14.05
Net interest margin............................................................................       4.60       4.79
Operating expenses as a percent of average assets(2)...........................................       3.61       4.00
 
Nonperforming assets as a percent of total assets at end of period.............................        .43        .67
Reserve for possible loan losses as a percent of nonperforming loans at end of period..........     283.23     193.29
Dividend payout ratio..........................................................................      39.00      33.80
Capital ratios at end of period:
  Tier 1 leverage capital ratio................................................................       7.33       7.35
  Tier 1 risk-based capital ratio..............................................................      11.09      10.63
  Total risk-based capital ratio...............................................................      12.35      11.89
</TABLE>
 
- ------------------------
 
(1) With the exception of end-of-period ratios, all ratios are based on average
    daily balances during the indicated periods.
 
(2) Annualized
 
    The Corporation earned $3.0 million or $.20 per share during the three
months ended March 31, 1997, compared to $2.6 million or $.18 per share for the
comparable quarter in 1996. The $420,000 or 16.3% increase was primarily due to
a $962,000 or 8.9% increase in net interest income. The increase in net interest
income was due to a $68.0 million or 10.7% increase in the average balance of
the loan portfolio, net of unearned discount, resulting from increases in both
the residential and commercial real estate portfolios and indirect automobile
lending, as well as a $56.5 million or 21.0% increase in the investment
securities portfolio, which reflects the Corporation's strategy of leveraging
its capital. The average balance of borrowings increased by $50.7 million or
93.0%, while the average balance of deposits increased by $64.1 million or 7.7%.
The provision for loan losses increased by $250,000 or 50%, as management
determined that an increase was appropriate due to the increase in the size of
the loan portfolio.
 
    The Corporation's non-interest income was essentially unchanged during the
three months ended March 31, 1997 over the comparable period. During the current
quarter, income from trust services increased by $100,000 or 17%. This increase
was offset by a non-recurring recovery of $95,000 during the March 1996 quarter
associated with a former real estate owned property.
 
    The Corporation's non-interest expense increased by $101,000 or 1.0% during
the quarter ended March 31, 1997 over the comparable period. As previously
reported, in connection with a change in the Bank's pension plan which was
effective January 1, 1997, the Corporation recognized $394,000 of previously
accrued pension liability as a credit against non-interest expense during the
March 31, 1997 quarter. Without giving effect to the aforementioned credit,
non-interest expense increased by $495,000 or 5.0%.
 
                                       21
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA
                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
 
    The selected consolidated financial data below should be read in connection
with the financial information included in the Corporation's Annual Report on
Form 10-K for the year ended December 31, 1996. See "Available Information" and
"Incorporation of Certain Documents by Reference."
 
<TABLE>
<CAPTION>
                                                                              AT DECEMBER 31,
                                                          -------------------------------------------------------
<S>                                                       <C>          <C>        <C>        <C>        <C>
                                                             1996        1995       1994       1993       1992
                                                          -----------  ---------  ---------  ---------  ---------
BALANCE SHEET DATA:
Total assets............................................  $ 1,092,793  $ 987,589  $ 929,194  $ 829,681  $ 807,146
Loans, net of unearned discount.........................      695,406    628,141    590,689    487,584    499,052
Securities held to maturity.............................      290,894    226,896    256,785    266,544    194,635
Securities available for sale...........................       26,449     32,628      4,250     --         --
Total deposits..........................................      918,572    871,085    796,612    743,385    729,020
Stockholders' equity....................................       81,110     72,572     64,202     57,385     52,746
Nonperforming loans.....................................        4,462      5,271      7,864     16,982     28,802
Nonperforming assets....................................        4,733      5,909     11,730     25,866     44,714
Reserve for possible loan losses........................       12,221     12,088     13,719     15,485     15,971
</TABLE>
 
<TABLE>
<CAPTION>
                                                                          YEAR ENDED DECEMBER 31,
                                                          -------------------------------------------------------
<S>                                                       <C>          <C>        <C>        <C>        <C>
                                                             1996        1995       1994       1993       1992
                                                          -----------  ---------  ---------  ---------  ---------
OPERATIONS DATA:
Interest income.........................................  $    77,211  $  73,031  $  63,487  $  57,450  $  63,055
Interest expense........................................       32,354     29,143     22,029     22,920     29,127
                                                          -----------  ---------  ---------  ---------  ---------
Net interest income.....................................       44,857     43,888     41,458     34,530     33,928
Provision for possible loan losses......................        1,750      1,000        801      5,075     11,014
                                                          -----------  ---------  ---------  ---------  ---------
Net interest income after provision for loan losses.....       43,107     42,888     40,657     29,455     22,914
Non-interest income.....................................       12,709     11,480     11,470     12,995     17,059
Non-interest expenses...................................       38,066     39,252     42,481     37,331     39,583
                                                          -----------  ---------  ---------  ---------  ---------
Income before income taxes..............................       17,750     15,116      9,646      5,119        390
Income taxes............................................        6,153      4,729      1,533        483        215
                                                          -----------  ---------  ---------  ---------  ---------
Net income..............................................  $    11,597  $  10,387  $   8,113  $   4,636  $     175
                                                          -----------  ---------  ---------  ---------  ---------
                                                          -----------  ---------  ---------  ---------  ---------
PER SHARE DATA:
Net income..............................................        $0.79      $0.71      $0.56      $0.32      $0.03
Cash dividends..........................................         0.25       0.18       0.08     --         --
Book value, end of period...............................         5.55       5.00       4.45       3.98       3.66
</TABLE>
 
<TABLE>
<CAPTION>
                                                                   AT OR FOR THE YEAR ENDED DECEMBER 31,
                                                          -------------------------------------------------------
<S>                                                       <C>          <C>        <C>        <C>        <C>
                                                             1996        1995       1994       1993       1992
                                                          -----------  ---------  ---------  ---------  ---------
SELECTED FINANCIAL RATIOS(1):
Return on average assets................................         1.13%      1.10%      0.94%      0.59%      0.02%
Return on average equity................................        15.20      15.28      13.36       8.48       0.56
Net interest margin.....................................         4.70       4.99       5.18       4.74       4.74
Operating expenses as a percent of average assets.......          3.7        4.1        4.9        4.7        4.9
Nonperforming assets as a percent of total assets at end
  of period.............................................         0.43       0.60       1.26       3.12       5.54
Reserve for possible loan losses as a percent of
  nonperforming loans at end of period..................       273.89     229.33     174.45      91.18      55.45
Dividend payout ratio...................................         31.6       25.4       14.3        N/A        N/A
Capital ratios at end of period:
  Tier 1 leverage capital ratio.........................         7.35       7.24       6.76       6.83       6.50
  Tier 1 risk-based capital ratio.......................        10.89      10.67      10.05      10.71       9.67
  Total risk-based capital ratio........................        12.15      11.92      11.31      11.98      10.94
</TABLE>
 
- ------------------------
(1) With the exception of end-of-period ratios, all ratios are based on average
    daily balances during the indicated periods.
 
                                       22
<PAGE>
                     MANAGEMENT OF INDEPENDENT AND THE BANK
 
    The executive officers and directors of the Corporation and the Bank are as
follows:
 
<TABLE>
<CAPTION>
NAME                                                                    POSITION
- -------------------------------------  --------------------------------------------------------------------------
<S>                                    <C>
John F. Spence, Jr...................  Chairman of the Board of Directors and Chief Executive Officer of the
                                       Company; Chairman of the Board of the Directors of the Bank
 
Douglas H. Philipsen.................  President of the Company; President and Chief Executive Officer of the
                                       Bank
 
Richard J. Seaman....................  Chief Financial Officer and Treasurer of the Company and the Bank
 
Richard F. Driscoll..................  Executive Vice President, Retail and Operations Division of the Bank
 
Ferdinand T. Kelley..................  Executive Vice President, Commercial Lending Division of the Bank
 
S. Lee Miller........................  Executive Vice President, Trust and Financial Services Division of the
                                       Bank
 
Raymond G. Fuerschbach...............  Senior Vice President and Human Resource Officer of the Bank
 
Richard S. Anderson..................  Director
 
Donald S. Atkins.....................  Director
 
W. Paul Clark........................  Director
 
Robert L. Cushing....................  Director
 
Benjamin A. Gilmore, II..............  Director
 
Lawrence M. Levinson.................  Director
 
Richard H. Sgarzi....................  Director
 
Robert J. Spence.....................  Director
 
William J. Spence....................  Director
 
Brian S. Tedeschi....................  Director
 
Thomas J. Teuten.....................  Director
</TABLE>
 
    JOHN F. SPENCE, JR.  Mr. Spence is Chairman of the Board of Directors and
Chief Executive Officer of the Company and Chairman of the Bank. He served as
President of the Company from January to December 1991. Mr. Spence has been a
director of the Bank since 1951 and served in various executive positions with
the Bank beginning in 1965, including Chief Executive Officer, a position he
held from 1976 until 1991. He became Chairman of the Board of the Bank in 1972
and Chairman of the Board of Directors and Chief Executive Officer of the
Company in 1986.
 
    DOUGLAS H. PHILIPSEN.  Mr. Philipsen is President of the Company and
President and Chief Executive Officer of the Bank. Mr. Philipsen joined the Bank
in December 1991 as President, Chief Executive Officer and a director. At that
time, he also became President and a director of the Company. From October 1987
through November 1990, Mr. Philipsen served as President and Chief Executive
Officer of
 
                                       23
<PAGE>
Bank of New England-Worcester, Worcester, Massachusetts, and its predecessor
financial institutions, Guaranty Bank & Trust and Consumers Savings Bank.
 
    RICHARD SEAMAN.  Mr. Seaman has been the Chief Financial Officer and
Treasurer of the Company and the Bank since July 1992. From December 1990 to
July 1992, Mr. Seaman was a management consultant with RJS Associates and
Danielson Associates, Inc., Rockville, Maryland, providing consulting to the
financial services industry on, among other matters, troubled bank
rehabilitation.
 
    RICHARD F. DRISCOLL.  Mr. Driscoll has been Executive Vice President, Retail
and Operations Division of the Bank since March 1992. Prior thereto, Mr.
Driscoll served as Executive Vice President--Dealer Lending Division of Fleet
Bank--Massachusetts, N.A. from July 1991 to March 1992.
 
    FERDINAND T. KELLEY.  Mr. Kelley has served as Executive Vice President,
Commercial Lending Division of the Bank, since February 1993. Prior thereto, Mr.
Kelley served as Senior Vice President and Credit Administrator of Multibank
Financial Corp., Dedham, Massachusetts, from August 1992 to January 1993. From
February 1990 to July 1991, Mr. Kelley was the Regional President of the
Worcester Region (Central Massachusetts) of Bank of New England, N.A., and
continued in that position with Fleet Bank of Massachusetts, N.A., from July
1991 to August 1992 following the Bank of New England's acquisition by Fleet
Bank.
 
    S. LEE MILLER.  Mr. Miller has been Executive Vice President, Trust and
Financial Services Division of the Bank since July 1994. Prior thereto, Mr.
Miller was President and Chief Executive Officer of Old Stone Trust Company, a
subsidiary of Old Stone Bank in Providence, Rhode Island from 1971 through July
1994.
 
    RAYMOND G. FUERSCHBACH.  Mr. Fuerschbach has served as Senior Vice
President, Human Resources Division of the Bank, since April 1994. Prior
thereto, Mr. Fuerschbach had been Vice President and Human Resource Officer of
the Bank since November 1992. From January 1991 to October 1992, Mr. Fuerschbach
served as Director of Human Resources for Cliftex Corp., New Bedford,
Massachusetts, a tailored clothing manufacturer.
 
    RICHARD S. ANDERSON.  Mr. Anderson is an owner and principal executive of
Anderson-Cushing Insurance Agency, Inc. (insurance broker, Middleboro,
Massachusetts). Mr. Anderson became a director of the Company and the Bank in
1992 and served as a director of Middleborough from 1980 until its merger with
the Bank.
 
    DONALD K. ATKINS.  Mr. Atkins served as President and Chief Executive
Officer of Winthrop-Atkins Co., Inc. (manufacturer of calendars, Middleboro,
Massachusetts) until his retirement in 1987. Mr. Atkins, a director of the
Company since 1986, became a director of the Bank in 1992 and served as a
director of Middleborough from 1963 until its merger with the Bank.
 
    W. PAUL CLARK.  Mr. Clark is the President and General Manager of Paul
Clark, Inc. (Ford and Volkswagen dealership, Brockton, Massachusetts). Mr. Clark
has served as a director of the Bank since 1970 and of the Company since 1986.
 
    ROBERT L. CUSHING.  Mr. Cushing is owner of Robert L. Cushing Insurance
(insurance broker associated with Anderson-Cushing Insurance Agency, Inc.,
Middleboro, Massachusetts). Mr. Cushing was a director of Middleborough from
1957 until 1990 at which time he became an honorary director of Middleborough.
Mr. Cushing became a director of the Company in 1986 and an honorary director of
the Bank in 1992.
 
    BENJAMIN A. GILMORE II.  Mr. Gilmore is President of Gilmore Cranberry Co.
(cranberry grower, South Carver, Massachusetts). Mr. Gilmore became a director
of Middleborough in 1989 and a director of the Company and the Bank in 1992.
 
    LAWRENCE M. LEVINSON.  Mr. Levinson is a partner in the law firm of Burns &
Levinson, Boston, Massachusetts and has been a practicing attorney in Boston
since 1948. Mr. Levinson was a director of the
 
                                       24
<PAGE>
Bank from 1960 until 1990, at which time he became an honorary director of the
Bank. Mr. Levinson has served as a director of the Company since 1986. Mr.
Levinson is also a director of Arrow Automotive Industries, Inc. and Sonesta
International Hotels Corporation.
 
    RICHARD H. SGARZI.  Mr. Sgarzi is the Treasurer of Black Cat Cranberry Corp.
(cranberry grower, Plymouth, Massachusetts). Mr. Sgarzi has served as a director
of the Company since 1994 and of the Bank since 1980.
 
    ROBERT J. SPENCE.  Mr. Spence is President of Albert Culver Co. (retail fuel
company, Rockland, Massachusetts). Mr. Spence has served as a director of the
Bank since 1961 and of the Company since 1986.
 
    WILLIAM J. SPENCE.  Mr. Spence is President of Mass. Bay Lines, Inc.
(excursion boat rentals, Boston, Massachusetts) and President of New Boston
Concessions, Inc. (food and beverage concessionaire, Boston, Massachusetts). Mr.
Spence became a director of the Bank in 1966 and a director of the Company in
1986.
 
    BRIAN S. TEDESCHI.  Mr. Tedeschi is President of Tedeschi Realty Corp. (real
estate development, Rockland, Massachusetts). Mr. Tedeschi has served as a
director of the Bank since 1980 and of the Company since 1991.
 
    THOMAS J. TEUTEN.  Mr. Teuten is Executive Vice President, A.W. Perry, Inc.
and A.W. Perry Security Corporation (real estate investment, Boston,
Massachusetts). Mr. Teuten has served as a director of the Bank since 1975 and
of the Company since 1986.
 
                                       25
<PAGE>
                          INDEPENDENT CAPITAL TRUST I
 
    The Trust is a statutory business trust formed under Delaware law upon the
filing of a certificate of trust with the Delaware Secretary of State. The Trust
exists for the exclusive purposes of (i) issuing and selling the Trust
Securities, (ii) using the proceeds from the sale of Trust Securities to acquire
the Junior Subordinated Debentures and (iii) engaging in only those other
activities necessary, advisable or incidental thereto. The Junior Subordinated
Debentures will be the sole assets of the Trust, and, accordingly, payments
under the Junior Subordinated Debentures will be the sole revenues of the Trust.
All of the Common Securities will be owned by the Corporation. The Common
Securities will rank PARI PASSU, and payments will be made thereon PRO RATA,
with the Trust Preferred Securities, except that upon the occurrence and
continuance of an event of default under the Trust Agreement resulting from a
Debenture Event of Default, the rights of the Corporation as holder of the
Common Securities to payments in respect of Distributions and payments upon
liquidation, redemption or otherwise will be subordinated to the rights of the
holders of the Trust Preferred Securities. See "Description of Trust Preferred
Securities--Subordination of Common Securities." The Corporation will acquire
Common Securities in a Liquidation Amount equal to at least 3% of the total
capital of the Trust. The Trust has a term of 31 years, but may terminate
earlier as provided in the Trust Agreement. The Trust's business and affairs are
conducted by the Issuer Trustees, each appointed by the Corporation as holder of
the Common Securities. The Issuer Trustees for the Trust will be The Bank of New
York, as the Property Trustee, The Bank of New York (Delaware), as the Delaware
Trustee and three Administrative Trustees who are officers of the Corporation or
the Bank. The Bank of New York, as Property Trustee, will act as sole indenture
trustee under the Trust Agreement. The Bank of New York will also act as
indenture trustee under the Guarantee and the Indenture. See "Description of
Guarantee" and "Description of Junior Subordinated Debentures." The holder of
the Common Securities of the Trust or, if an Event of Default under the Trust
Agreement has occurred and is continuing, the holders of not less than a
majority in Liquidation Amount of the Trust Preferred Securities will be
entitled to appoint, remove or replace the Property Trustee and/or the Delaware
Trustee. In no event will the holders of the Trust Preferred Securities have the
right to vote to appoint, remove or replace the Administrative Trustees; such
voting rights will be vested exclusively in the holder of the Common Securities.
The duties and obligations of each Issuer Trustee are governed by the Trust
Agreement. The Corporation, as issuer of the Junior Subordinated Debentures,
will pay all fees, expenses, debts and obligations (other than the payment of
principal, interest and premium, if any, on the Trust Securities) related to the
Trust and the offering of the Trust Preferred Securities and will pay, directly
or indirectly, all ongoing costs, expenses and liabilities (other than the
payment of principal, interest and premium, if any, on the Trust Securities) of
the Trust. The principal executive office of the Trust is c/o The Bank of New
York, 101 Barclay Street, New York, New York 10286.
 
                                       26
<PAGE>
                   DESCRIPTION OF TRUST PREFERRED SECURITIES
 
    The Trust Preferred Securities will represent undivided beneficial interests
in the Trust and the holders thereof will be entitled to a preference over the
Common Securities in certain circumstances with respect to Distributions and
amounts payable on redemption of the Trust Securities or liquidation of the
Trust. See "--Subordination of Common Securities." The Trust Agreement will be
qualified under the Trust Indenture Act of 1939, as amended (the "Trust
Indenture Act"). This summary of certain provisions of the Trust Preferred
Securities, the Common Securities and the Trust Agreement does not purport to be
complete and is subject to, and is qualified in its entirety by reference to,
all the provisions of the Trust Agreement, including the definitions therein of
certain terms, and the Trust Indenture Act. The form of the Trust Agreement has
been filed as an exhibit to the Registration Statement of which this Prospectus
forms a part.
 
GENERAL
 
    Pursuant to the terms of the Trust Agreement, the Issuer Trustees, on behalf
of the Trust, will issue the Trust Securities. All of the Common Securities will
be owned by the Corporation. The Trust Preferred Securities will represent
preferred undivided beneficial interests in the assets of the Trust and the
holders thereof will be entitled to a preference in certain circumstances with
respect to Distributions and amounts payable on redemption or liquidation over
the Common Securities, as well as other benefits as described in the Trust
Agreement. The Trust Agreement does not permit the issuance by the Trust of any
securities other than the Trust Securities or the incurrence of any indebtedness
by the Trust.
 
    The Trust Preferred Securities will rank PARI PASSU, and payments will be
made thereon PRO RATA, with the Common Securities except as described under
"--Subordination of Common Securities." Legal title to the Junior Subordinated
Debentures will be held by the Property Trustee in trust for the benefit of the
holders of the Trust Securities. The Guarantee will not guarantee payment of
Distributions or amounts payable on redemption of the Trust Preferred Securities
or liquidation of the Trust when the Trust does not have funds on hand legally
available for such payments. See "Description of Guarantee."
 
DISTRIBUTIONS
 
    PAYMENT OF DISTRIBUTIONS.  Distributions on each Trust Preferred Security
will be cumulative, will accumulate from May 19, 1997 and will be payable
quarterly in arrears on the last day of March, June, September and December of
each year, commencing June 30, 1997, at the annual rate of 9.28% of the stated
Liquidation Amount of $25, to the holders of the Trust Preferred Securities on
the relevant record date which, for so long as the Trust Preferred Securities
remain in book-entry form, will be one Business Day (as defined below) prior to
the relevant Distribution Date and, in the event the Trust Preferred Securities
are not in book-entry form, will be the fifteenth day of the month in which the
relevant Distribution Date occurs. The amount of Distributions payable for any
period will be computed on the basis of a 360-day year of twelve 30-day months
and, for any period of less than a full calendar month, the number of days
elapsed in such month. In the event that any date on which Distributions are
payable on the Trust Preferred Securities is not a Business Day (as defined
below), payment of the Distribution payable on such date will be made on the
next succeeding day that is a Business Day (and without any interest or other
payment in respect to any such delay), except that if such next succeeding
Business Day falls in the next succeeding calendar year, such payment shall be
made on the immediately preceding Business Day, in each case with the same force
and effect as if made on such date (each date on which Distributions are payable
in accordance with the foregoing, a "Distribution Date"). A "Business Day" shall
mean any day other than a Saturday or a Sunday, or a day on which banking
institutions in the City of New York or Rockland, Massachusetts are authorized
or required by law or executive order to remain closed.
 
    EXTENSION PERIOD.  So long as no Debenture Event of Default shall have
occurred and be continuing, the Corporation will have the right under the
Indenture to elect to defer the payment of interest on the
 
                                       27
<PAGE>
Junior Subordinated Debentures at any time or from time to time for a period not
exceeding 20 consecutive quarterly periods with respect to each Extension
Period, provided that no Extension Period shall end on a date other than an
Interest Payment Date or extend beyond the Stated Maturity Date. Upon any such
election, quarterly Distributions on the Trust Preferred Securities will be
deferred by the Trust during such Extension Period. Distributions to which
holders of the Trust Preferred Securities are entitled during any such Extension
Period will accumulate additional Distributions thereon at the rate per annum of
9.28% thereof, compounded quarterly from the relevant Distribution Date. The
term "Distributions," as used herein, shall include any such additional
Distributions.
 
    Prior to the termination of any such Extension Period, the Corporation may
further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed 20 consecutive quarterly periods, to end
on a date other than an Interest Payment Date or to extend beyond the Stated
Maturity Date. Upon the termination of any such Extension Period and the payment
of all amounts then due on any Interest Payment Date, the Corporation may elect
to begin a new Extension Period, subject to the above requirements. No interest
shall be due and payable during an Extension Period, except at the end thereof.
The Corporation must give the Property Trustee, the Administrative Trustees and
the Debenture Trustee notice of its election of any such Extension Period (or an
extension thereof) at least five Business Days prior to the earlier of (i) the
date the Distributions on the Trust Preferred Securities would have been payable
except for the election to begin such Extension Period and (ii) the date the
Administrative Trustees are required to give notice to any securities exchange
or automated quotation system or to holders of such Trust Preferred Securities
of the record date or the date such Distributions are payable, but in any event
not less than five Business Days prior to such record date. There is no
limitation on the number of times that the Corporation may elect to begin an
Extension Period. See "Description of Junior Subordinated Debentures--Option to
Extend Interest Payment Date" and "Certain Federal Income Tax
Consequences--Interest Income and Original Issue Discount."
 
    During any such Extension Period, the Corporation may not (i) declare or pay
any dividends or distributions on, or redeem, purchase, acquire, or make a
liquidation payment with respect to, any of the Corporation's capital stock,
(ii) make any payment of principal of, interest or premium, if any, on or repay,
repurchase or redeem any debt securities of the Corporation (including any Other
Debentures) that rank PARI PASSU with or junior in right of payment to the
Junior Subordinated Debentures or (iii) make any guarantee payments with respect
to any guarantee by the Corporation of the debt securities of any subsidiary of
the Corporation (including Other Guarantees) if such guarantee ranks PARI PASSU
with or junior in right of payment to the Junior Subordinated Debentures (other
than (a) dividends or distributions in shares of, or options, warrants or rights
to subscribe for or purchase shares of, common stock of the Corporation, (b) any
declaration of a dividend in connection with the implementation of a
stockholders' rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto, (c)
payments under the Guarantee, (d) the purchase of fractional shares resulting
from a reclassification of the Corporation's capital stock, (e) the purchase of
fractional interests in shares of the Corporation's capital stock pursuant to
the conversion or exchange provisions of such capital stock or the security
being converted or exchanged and (f) purchases of common stock related to the
issuance of common stock or rights under any of the Corporation's benefit plans
for its directors, officers or employees or any of the Corporation's dividend
reinvestment plans).
 
    The Corporation has no current intention to exercise its option to defer
payments of interest on the Junior Subordinated Debentures.
 
    SOURCE OF DISTRIBUTION.  The revenue of the Trust available for distribution
to holders of the Trust Preferred Securities will be limited to payments under
the Junior Subordinated Debentures in which the Trust will invest the proceeds
from the issuance and sale of the Trust Securities. See "Description of Junior
Subordinated Debentures--General." If the Corporation does not make interest
payments on the Junior Subordinated Debentures, the Property Trustee will not
have funds available to pay Distributions on the Trust Preferred Securities. The
payment of Distributions (if and to the extent the Trust has funds on hand
 
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<PAGE>
legally available for the payment of such Distributions) will be guaranteed by
the Corporation on a limited basis as set forth herein under "Description of
Guarantee."
 
REDEMPTION
 
    MANDATORY REDEMPTION.  Upon the repayment or redemption at any time, in
whole or in part, of any Junior Subordinated Debentures, the proceeds from such
repayment or prepayment shall be applied by the Property Trustee to redeem a
Like Amount (as defined below) of the Trust Securities, upon not less than 30
nor more than 60 days notice of a date of redemption (the "Redemption Date"), at
a redemption price equal to 100% of the principal amount of the Trust Securities
together with accrued and unpaid interest thereon. See "Description of Junior
Subordinated Debentures--Redemption." If less than all of the Junior
Subordinated Debentures are to be prepaid on a Redemption Date, then the
proceeds of such prepayment shall be allocated PRO RATA to the Trust Securities.
 
    OPTIONAL REDEMPTION.  The Corporation will have the right to redeem the
Junior Subordinated Debentures on or after May 19, 2002, in whole at any time or
in part from time to time at a redemption price equal to the accrued and unpaid
interest on the Junior Subordinated Debentures so redeemed to the date fixed for
redemption, plus 100% of the principal amount thereof, in each case subject to
receipt of prior approval by the Federal Reserve. See "Description of Junior
Subordinated Debentures-- Redemption."
 
    TAX EVENT, INVESTMENT COMPANY EVENT, REGULATORY CAPITAL EVENT OR
DISTRIBUTION OF JUNIOR SUBORDINATED DEBENTURES.  If a Special Event shall occur
and be continuing, the Corporation will have the right to redeem the Junior
Subordinated Debentures in whole (but not in part) and thereby cause a mandatory
redemption of the Trust Securities in whole (but not in part) at the redemption
price within 90 days following the occurrence of such Special Event, in each
case subject to receipt of prior approval by the Federal Reserve if then
required under applicable capital guidelines or policies of the Federal Reserve.
In the event a Special Event, has occurred and is continuing and the Corporation
does not elect to redeem the Junior Subordinated Debentures and thereby cause a
mandatory redemption of the Trust Securities or to liquidate the Trust and cause
the Junior Subordinated Debentures to be distributed to holders of the Trust
Securities in liquidation of the Trust as described below, such Trust Securities
will remain outstanding and Additional Sums (as defined below) may be payable on
the Junior Subordinated Debentures.
 
    DEFINITIONS
 
    "Additional Sums" means the additional amounts as may be necessary to be
paid by the Corporation with respect to the Junior Subordinated Debentures in
order that the amount of Distributions then due and payable by the Trust on the
outstanding Trust Securities of the Trust shall not be reduced as a result of
any additional taxes, duties and other governmental charges to which the Trust
has become subject as a result of a Tax Event.
 
    An "Investment Company Event" means the receipt by the Corporation of an
opinion of counsel experienced in such matters to the effect that, as a result
of any change in law or regulation or a change in interpretation or application
of law or regulation by any legislative body, court, governmental agency or
regulatory authority the Trust is or will be considered an "investment company"
that is required to be registered under the Investment Company Act, which change
becomes effective on or after the original issuance of the Trust Preferred
Securities.
 
    "Like Amount" means (i) with respect to a redemption of Trust Securities,
Trust Securities having a Liquidation Amount (as defined below) equal to that
portion of the principal amount of Junior Subordinated Debentures to be
contemporaneously redeemed in accordance with the Indenture, allocated to the
Common Securities and to the Trust Preferred Securities based upon the relative
Liquidation Amounts of such classes and the proceeds of which will be used to
pay the redemption price of such Trust Securities, and (ii) with respect to a
distribution of Junior Subordinated Debentures to holders of Trust Securities in
 
                                       29
<PAGE>
connection with a dissolution or liquidation of the Trust, Junior Subordinated
Debentures having a principal amount equal to the Liquidation Amount of the
Trust Securities of the holder to whom such Junior Subordinated Debentures are
distributed.
 
    "Liquidation Amount" means the stated amount of $25 per Trust Security.
 
    A "Regulatory Capital Event" means that the Corporation shall have received
an opinion of independent bank regulatory counsel experienced in such matters to
the effect that, as a result of (a) any amendment to, or change (including any
announced prospective change) in, the laws (or any regulations thereunder) of
the United States or any rules, guidelines or policies of the Federal Reserve or
(b) any official administrative pronouncement or judicial decision interpreting
or applying such laws or regulations, which amendment or change is effective or
which pronouncement or decision is announced on or after date of the original
issuance of the Trust Preferred Securities, the Trust Preferred Securities do
not constitute, or within 90 days of the date thereof, will not constitute, Tier
I Capital (or its then equivalent); PROVIDED, HOWEVER, that the distribution of
the Junior Subordinated Debentures in connection with the termination of the
Trust by the Corporation shall not in and of itself constitute a Regulatory
Capital Event.
 
    A "Special Event" means a Tax Event, an Investment Company Event or a
Regulatory Capital Event, as the case may be.
 
    A "Tax Event" means the receipt by the Corporation and the Trust of an
opinion of counsel experienced in such matters to the effect that, as a result
of any amendment to, or change (including any announced prospective change) in,
the laws or any regulations thereunder of the United States or any political
subdivision or taxing authority thereof or therein, or as a result of any
official administrative pronouncement or judicial decision interpreting or
applying such laws or regulations, which amendment or change is effective or
such pronouncement or decision is announced on or after the original issuance of
the Trust Preferred Securities, there is more than an insubstantial risk that
(i) the Trust is, or will be within 90 days of the date of such opinion, subject
to United States federal income tax with respect to income received or accrued
on the Junior Subordinated Debentures, (ii) interest payable by the Corporation
on the Junior Subordinated Debentures is not, or within 90 days of the date of
such opinion will not be, deductible by the Corporation, in whole or in part,
for United States federal income tax purposes or (iii) the Trust is, or will be
within 90 days of the date of such opinion, subject to more than a DE MINIMIS
amount of other taxes, duties or other governmental charges.
 
DISTRIBUTION OF JUNIOR SUBORDINATED DEBENTURES
 
    The Corporation will have the right at any time to terminate the Trust and,
after satisfaction of liabilities to creditors of the Trust as required by
applicable law, to cause the Junior Subordinated Debentures to be distributed to
the holders of the Trust Securities in liquidation of the Trust. Such right is
subject to (i) the Corporation having received an opinion of counsel to the
effect that such distribution will not be a taxable event to holders of Trust
Preferred Securities and (ii) the prior approval by the Federal Reserve if then
required under applicable capital guidelines or policies of the Federal Reserve.
 
    After the liquidation date is fixed for any distribution of Junior
Subordinated Debentures to holders of the Trust Securities, (i) the Trust
Securities will no longer be deemed to be outstanding, (ii) DTC or its nominee
will receive, in respect of each registered global certificate, if any,
representing Trust Securities and held by it, a registered global certificate or
certificates representing the Junior Subordinated Debentures to be delivered
upon such distribution and (iii) any certificates representing Trust Securities
not held by DTC or its nominee will be deemed to represent Junior Subordinated
Debentures having a principal amount equal to the Liquidation Amount of such
Trust Securities, and bearing accrued and unpaid interest in an amount equal to
the accumulated and unpaid Distributions on such Trust Securities until such
certificates are presented to the Administrative Trustees or their agent for
cancellation, whereupon the Corporation will issue to such holder, and the
Debenture Trustee will authenticate, a certificate representing such Junior
Subordinated Debentures.
 
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<PAGE>
    There can be no assurance as to the market prices for the Trust Preferred
Securities or the Junior Subordinated Debentures that may be distributed in
exchange for the Trust Securities if a dissolution and liquidation of the Trust
were to occur. Accordingly, the Trust Preferred Securities that an investor may
purchase, or the Junior Subordinated Debentures that the investor may receive on
dissolution and liquidation of the Trust, may trade at a discount to the price
that the investor paid to purchase the Trust Preferred Securities offered
hereby.
 
REDEMPTION PROCEDURES
 
    If applicable, Trust Securities shall be redeemed at the redemption price
with the proceeds from the contemporaneous repayment or prepayment of the Junior
Subordinated Debentures. Any redemption of Trust Securities shall be made and
the redemption price shall be payable on the Redemption Date only to the extent
that the Trust has funds legally available for the payment of such redemption
price. See also "--Subordination of Common Securities."
 
    If the Trust gives a notice of redemption in respect of the Trust Preferred
Securities, then, by 12:00 noon, New York City time, on the Redemption Date, to
the extent funds are legally available, with respect to the Trust Preferred
Securities held by DTC or its nominees, the Property Trustee will deposit or
cause the Paying Agent (as defined herein) to deposit irrevocably with DTC funds
sufficient to pay the redemption price and will give DTC or its nominees
irrevocable instructions and authority to pay the redemption price to the
holders of such Trust Preferred Securities. See "Book-Entry Issuance." If such
Trust Preferred Securities are no longer in book-entry form, the Property
Trustee, to the extent funds are legally available, will irrevocably deposit
with the paying agent for such Trust Preferred Securities funds sufficient to
pay the aggregate redemption price and will give such paying agent irrevocable
instructions and authority to pay the redemption price to the holders thereof
upon surrender of their certificates evidencing such Trust Preferred Securities.
Notwithstanding the foregoing, Distributions payable on or prior to the
Redemption Date shall be payable to the holders of such Trust Preferred
Securities on the relevant record dates for the related Distribution Dates. If
notice of redemption shall have been given and funds deposited as required, then
upon the date of such deposit, all rights of the holders of the Trust Preferred
Securities called for redemption will cease, except the right of the holders of
such Trust Preferred Securities to receive the redemption price, but without
interest on such redemption price and such Trust Preferred Securities will cease
to be outstanding. In the event that any Redemption Date of Trust Preferred
Securities is not a Business Day, then the redemption price, payable on such
date will be paid on the next succeeding day that is a Business Day (and without
any interest or other payment in respect of any such delay), except that, if
such next succeeding Business Day falls in the next calendar year, such payment
shall be made on the immediately preceding Business Day. In the event that
payment of the redemption price is improperly withheld or refused and not paid
either by the Trust or by the Corporation pursuant to the Guarantee as described
under "Description of Guarantee," (i) Distributions on Trust Securities will
continue to accumulate at the then applicable rate, from the Redemption Date
originally established by the Trust to the date such redemption price is
actually paid and (ii) the actual payment date will be the Redemption Date for
purposes of calculating the redemption price.
 
    Subject to applicable law (including, without limitation, United States
federal securities law and the regulations of the Federal Reserve), the
Corporation or its subsidiaries may at any time and from time to time purchase
outstanding Trust Preferred Securities by tender, in the open market or by
private agreement.
 
    Payment of the redemption price on the Trust Preferred Securities shall be
made on the Redemption Date.
 
    If less than all of the Trust Securities issued by the Trust are to be
redeemed on a Redemption Date, then the aggregate redemption price for such
Trust Securities to be redeemed shall be allocated PRO RATA to the Trust
Preferred Securities and Common Securities based upon the relative Liquidation
Amounts of
 
                                       31
<PAGE>
such classes. The particular Trust Preferred Securities to be redeemed shall be
selected by the Property Trustee from the outstanding Trust Preferred Securities
not previously called for redemption, by such method as the Property Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of portions (equal to $25 or an integral multiple thereof) of the
Liquidation Amount of Trust Preferred Securities. The Property Trustee shall
promptly notify the security registrar in writing of the Trust Preferred
Securities selected for redemption and, in the case of any Trust Preferred
Securities selected for partial redemption, the Liquidation Amount thereof to be
redeemed. For all purposes of the Trust Agreement, unless the context otherwise
requires, all provisions relating to the redemption of Trust Preferred
Securities shall relate to the portion of the aggregate Liquidation Amount of
Trust Preferred Securities which has been or is to be redeemed.
 
    Notice of any redemption will be mailed at least 30 days but not more than
60 days prior to the Redemption Date to each holder of Trust Securities at its
registered address. Unless the Corporation defaults in payment of the redemption
price on, or in the repayment of, the Junior Subordinated Debentures, on and
after the Redemption Date, Distributions will cease to accrue on the Trust
Securities called for redemption.
 
SUBORDINATION OF COMMON SECURITIES
 
    Payment of Distributions on, and the redemption price of, the Trust
Securities, as applicable, shall be made PRO RATA based on the Liquidation
Amount of the Trust Securities; provided, however, that if on any Distribution
Date or Redemption Date a Debenture Event of Default shall have occurred and be
continuing, no payment of any Distribution on, or applicable redemption price
of, any of the Common Securities, and no other payment on account of the
redemption, liquidation or other acquisition of the Common Securities, shall be
made unless payment in full in cash of all accumulated and unpaid Distributions
on all of the outstanding Trust Preferred Securities for all Distribution
periods terminating on or prior thereto, or in the case of payment of the
redemption price, the full amount of such redemption price, shall have been made
or provided for, and all funds available to the Property Trustee shall first be
applied to the payment in full in cash of all Distributions on, or redemption
price of, the Trust Preferred Securities then due and payable.
 
    In the case of any Event of Default under the Trust Agreement relating to a
Debenture Event of Default, the Corporation as holder of the Common Securities
will be deemed to have waived any right to act with respect to such Event of
Default until the effect of such Event of Default shall have been cured, waived
or otherwise eliminated. Until any such Event of Default has been so cured,
waived or otherwise eliminated, the Property Trustee shall act solely on behalf
of the holders of the Trust Preferred Securities and not on behalf of the
Corporation as holder of the Common Securities, and only the holders of the
Trust Preferred Securities will have the right to direct the Property Trustee to
act on their behalf.
 
LIQUIDATION DISTRIBUTION UPON TERMINATION
 
    The Corporation will have the right at any time to terminate the Trust and
cause the Junior Subordinated Debentures to be distributed to the holders of the
Trust Preferred Securities. Such right is subject to (i) the Corporation having
received an opinion of counsel to the effect that such distribution will not be
a taxable event to holders of Trust Preferred Securities, and (ii) the
Corporation having received prior approval of the Federal Reserve if then
required under applicable capital guidelines or policies of the Federal Reserve.
See "--Distribution of Junior Subordinated Debentures."
 
    In addition, the Trust shall automatically terminate upon the first to occur
of: (i) certain events of bankruptcy, dissolution or liquidation of the
Corporation; (ii) the distribution of a Like Amount of the Junior Subordinated
Debentures to the holders of the Trust Securities, if the Corporation, as
Sponsor, has given written direction to the Property Trustee to terminate the
Trust (which direction is optional and, except as described above, wholly within
the discretion of the Corporation, as Sponsor); (iii) redemption of
 
                                       32
<PAGE>
all of the Trust Securities as described under "--Redemption;" (iv) expiration
of the term of the Trust; and (v) the entry of an order for the dissolution of
the Trust by a court of competent jurisdiction.
 
    If a termination occurs as described in clause (i), (ii), (iv), or (v)
above, the Trust shall be liquidated by the Issuer Trustees as expeditiously as
the Issuer Trustees determine to be possible by distributing, after satisfaction
of liabilities to creditors of the Trust as provided by applicable law, to the
holders of the Trust Securities a Like Amount of the Junior Subordinated
Debentures, unless such distribution is determined by the Property Trustee not
to be practicable, in which event such holders will be entitled to receive out
of the assets of the Trust legally available for distribution to holders, after
satisfaction of liabilities to creditors of the Trust as provided by applicable
law, an amount equal to the aggregate of the Liquidation Amount plus accumulated
and unpaid Distributions thereon to the date of payment (such amount being the
"Liquidation Distribution"). If such Liquidation Distribution can be paid only
in part because the Trust has insufficient assets on hand legally available to
pay in full the aggregate Liquidation Distribution, then the amounts payable
directly by the Trust on the Trust Securities shall be paid on a PRO RATA basis,
except that if a Debenture Event of Default has occurred and is continuing, the
Trust Preferred Securities shall have a priority over the Common Securities. See
"--Subordination of Common Securities."
 
    If the Corporation elects not to prepay the Junior Subordinated Debentures
prior to maturity in accordance with their terms and either elects not to or is
unable to liquidate the Trust and distribute the Junior Subordinated Debentures
to holders of the Trust Securities, the Trust Securities will remain outstanding
until the repayment of the Junior Subordinated Debentures on the Stated Maturity
Date.
 
    If the Corporation elects to liquidate the Trust and thereby causes the
Junior Subordinated Debentures to be distributed to holders of the Trust
Preferred Securities in liquidation of the Trust, the Corporation shall continue
to have the right to shorten the maturity of such Junior Subordinated
Debentures, subject to certain conditions. See "Description of Junior
Subordinated Debentures-- General."
 
                                       33
<PAGE>
EVENTS OF DEFAULT; NOTICE
 
    Any one of the following events that has occurred and is continuing
constitutes an "Event of Default" under the Trust Agreement (an "Event of
Default") with respect to the Trust Preferred Securities (whatever the reason
for such Event of Default and whether it shall be voluntary or involuntary or be
effected by operation of law or pursuant to any judgment, decree or order of any
court or any order, rule or regulation of any administrative or governmental
body):
 
        (i) the occurrence of a Debenture Event of Default (see "Description of
    Junior Subordinated Debentures--Debenture Events of Default"); or
 
        (ii) default by the Trust in the payment of any Distribution when it
    becomes due and payable, and continuation of such default for a period of 30
    days; or
 
       (iii) default by the Trust in the payment of the redemption price of any
    Trust Security when it becomes due and payable; or
 
        (iv) default in the performance, or breach, in any material respect, of
    any covenant or warranty of the Issuer Trustees in the Trust Agreement
    (other than a default or breach in the performance of a covenant or warranty
    which is addressed in clause (ii) or (iii) above), and continuation of such
    default or breach, for a period of 60 days after there has been given, by
    registered or certified mail, to the defaulting Issuer Trustee or Trustees
    by the holders of at least 25% in aggregate Liquidation Amount of the
    outstanding Trust Preferred Securities, a written notice specifying such
    default or breach and requiring it to be remedied and stating that such
    notice is a "Notice of Default" under the Trust Agreement; or
 
        (v) the occurrence of certain events of bankruptcy or insolvency with
    respect to the Property Trustee and the failure by the Corporation to
    appoint a successor Property Trustee within 60 days thereof.
 
    Within ten Business Days after the occurrence of any Event of Default
actually known to the Property Trustee, the Property Trustee shall transmit
notice of such Event of Default to the holders of the Trust Preferred
Securities, the Administrative Trustees and the Corporation, as Sponsor, unless
such Event of Default shall have been cured or waived. The Corporation, as
Sponsor, and the Administrative Trustees are required to file annually with the
Property Trustee a certificate as to whether or not they are in compliance with
all the conditions and covenants applicable to them under the Trust Agreement.
 
    If a Debenture Event of Default has occurred and is continuing, the Trust
Preferred Securities shall have a preference over the Common Securities as
described under "--Liquidation Distribution Upon Termination" and
"--Subordination of Common Securities." Upon a Debenture Event of Default,
unless the principal of all the Junior Subordinated Debentures has already
become due and payable, either the Property Trustee or the holders of not less
than 25% in aggregate principal amount of the Junior Subordinated Debentures
then outstanding may declare all of the Junior Subordinated Debentures to be due
and payable immediately by giving notice in writing to the Corporation (and to
the Property Trustee, if notice is given by holders of the Junior Subordinated
Debentures). If the Property Trustee or the holders of the Junior Subordinated
Debentures fail to declare the principal of all of the Junior Subordinated
Debentures due and payable upon a Debenture Event of Default, the holders of at
least 25% in Liquidation Amount of the Trust Preferred Securities then
outstanding shall have the right to declare the Junior Subordinated Debentures
immediately due and payable. In either event, payment of principal and interest
on the Junior Subordinated Debentures shall remain subordinated to the extent
provided in the Indenture. In addition, holders of the Trust Preferred
Securities have the right in certain circumstances to bring a Direct Action. See
"Description of Junior Subordinated Debentures--Enforcement of Certain Rights by
Holders of Trust Preferred Securities."
 
                                       34
<PAGE>
REMOVAL OF ISSUER TRUSTEES
 
    Unless a Debenture Event of Default shall have occurred and be continuing,
any Issuer Trustee may be removed at any time by the holder of the Common
Securities. If a Debenture Event of Default has occurred and is continuing, the
Property Trustee and the Delaware Trustee may be removed at such time by the
holders of a majority in Liquidation Amount of the outstanding Trust Preferred
Securities. In no event will the holders of the Trust Preferred Securities have
the right to vote to appoint, remove or replace the Administrative Trustees,
which voting rights are vested exclusively in the Corporation as the holder of
the Common Securities. No resignation or removal of an Issuer Trustee and no
appointment of a successor trustee shall be effective until the acceptance of
appointment by the successor trustee in accordance with the provisions of the
Trust Agreement.
 
CO-TRUSTEES AND SEPARATE PROPERTY TRUSTEE
 
    Unless an Event of Default shall have occurred and be continuing, at any
time or times, for the purpose of meeting the legal requirements of the Trust
Indenture Act or of any jurisdiction in which any part of Trust Property may at
the time be located, the Corporation as the holder of the Common Securities, and
the Administrative Trustees shall have power to appoint one or more persons
either to act as a co-trustee, jointly with the Property Trustee, of all or any
part of such Trust Property, or to act as separate trustee of any such property,
in either case with such powers as may be provided in the instrument of
appointment, and to vest in such person or persons in such capacity any
property, title, right or power deemed necessary or desirable, subject to the
provisions of the Trust Agreement. In case a Debenture Event of Default has
occurred and is continuing, the Property Trustee alone shall have power to make
such appointment.
 
MERGER OR CONSOLIDATION OF ISSUER TRUSTEES
 
    Any Person into which the Property Trustee, the Delaware Trustee or any
Administrative Trustee that is not a natural person may be merged or converted
or with which it may be consolidated, or any Person resulting from any merger,
conversion or consolidation to which such Issuer Trustee shall be a party, or
any Person succeeding to all or substantially all the corporate trust business
of such Issuer Trustee, shall be the successor of such Issuer Trustee under the
Trust Agreement, provided such Person shall be otherwise qualified and eligible.
 
MERGERS, CONSOLIDATIONS, AMALGAMATIONS OR REPLACEMENTS OF THE TRUST
 
    The Trust may not merge with or into, consolidate, amalgamate, or be
replaced by, or convey, transfer or lease its properties and assets as an
entirety or substantially as an entirety to any corporation or other Person,
except as described below. The Trust may, at the request of the Corporation, as
Sponsor, with the consent of the Administrative Trustees but without the consent
of the holders of the Trust Preferred Securities, merge with or into,
consolidate, amalgamate, or be replaced by or convey, transfer or lease its
properties and assets as an entirety or substantially as an entirety to a trust
organized as such under the laws of any State; provided, that (i) such successor
entity either (a) expressly assumes all of the obligations of the Trust with
respect to the Trust Securities or (b) substitutes for the Trust Securities
other securities having substantially the same terms as the Trust Securities
(the "Successor Securities") so long as the Successor Securities rank the same
as the Trust Securities rank in priority with respect to distributions and
payments upon liquidation, redemption and otherwise, (ii) the Corporation
expressly appoints a trustee of such successor entity possessing the same powers
and duties as the Property Trustee with respect to the Junior Subordinated
Debentures, (iii) the Successor Securities are listed, or any Successor
Securities will be listed upon notification of issuance, on any national
securities exchange or other organization on which the Trust Preferred
Securities are then listed or quoted, if any, (iv) if the Trust Preferred
Securities (including any Successor Securities) are rated by any nationally
recognized statistical rating organization prior to such transaction, such
merger, consolidation, amalgamation, replacement, conveyance, transfer or
 
                                       35
<PAGE>
lease does not cause the Trust Securities (including any Successor Securities)
or, if the Junior Subordinated Debentures are so rated, the Junior Subordinated
Debentures, to be downgraded by any such nationally recognized statistical
rating organization, (v) such merger, consolidation, amalgamation, replacement,
conveyance, transfer or lease does not adversely affect the rights, preferences
and privileges of the holders of the Trust Securities (including any Successor
Securities) in any material respect, (vi) such successor entity has a purpose
identical to that of the Trust, (vii) prior to such merger, consolidation,
amalgamation, replacement, conveyance, transfer or lease, the Corporation has
received an opinion from independent counsel to the Trust experienced in such
matters to the effect that (a) such merger, consolidation, amalgamation,
replacement, conveyance, transfer or lease does not adversely affect the rights,
preferences and privileges of the holders of the Trust Securities (including any
Successor Securities) in any material respect (other than any dilution of such
holders' interests in the new entity), and (b) following such merger,
consolidation, amalgamation, replacement, conveyance, transfer or lease, neither
the Trust nor such successor entity will be required to register as an
investment company under the Investment Company Act of 1940, as amended (the
"Investment Company Act"), and (viii) the Corporation or any permitted successor
or assignee owns all of the common securities of such successor entity and
guarantees the obligations of such successor entity under the Successor
Securities at least to the extent provided by the Guarantee. Notwithstanding the
foregoing, the Trust shall not, except with the consent of holders of 100% in
Liquidation Amount of the Trust Securities, consolidate, amalgamate, merge with
or into, or be replaced by or convey, transfer or lease its properties and
assets as an entirety or substantially as an entirety to, any other entity or
permit any other entity to consolidate, amalgamate, merge with or into, or
replace it if such consolidation, amalgamation, merger, replacement, conveyance,
transfer or lease would cause the Trust or the successor entity not to be
classified as a grantor trust for United States federal income tax purposes.
 
VOTING RIGHTS; AMENDMENT OF THE TRUST AGREEMENT
 
    Except as provided below and under "--Mergers, Consolidations, Amalgamations
or Replacements of the Trust" and "Description of Guarantee--Amendments and
Assignment" and as otherwise required by law and the Trust Agreement, the
holders of the Trust Preferred Securities will have no voting rights.
 
    The Trust Agreement may be amended from time to time by the Corporation, the
Property Trustee and the Administrative Trustees, without the consent of the
holders of the Trust Securities (i) to cure any ambiguity, correct or supplement
any provisions in the Trust Agreement that may be inconsistent with any other
provision, or to make any other provisions with respect to matters or questions
arising under the Trust Agreement, which shall not be inconsistent with the
other provisions of the Trust Agreement, or (ii) to modify, eliminate or add to
any provisions of the Trust Agreement to such extent as shall be necessary to
ensure that the Trust will be classified for United States federal income tax
purposes as a grantor trust at all times that any Trust Securities are
outstanding or to ensure that the Trust will not be required to register as an
"investment company" under the Investment Company Act; provided, however, that
such action shall not adversely affect in any material respect the interests of
the holders of the Trust Securities. Any amendments of the Trust Agreement
pursuant to the foregoing shall become effective when notice thereof is given to
the holders of the Trust Securities. The Trust Agreement may be amended by the
Issuer Trustees and the Corporation (i) with the consent of holders representing
a majority (based upon Liquidation Amount) of the outstanding Trust Securities
and (ii) upon receipt by the Issuer Trustees of an opinion of counsel
experienced in such matters to the effect that such amendment or the exercise of
any power granted to the Issuer Trustees in accordance with such amendment will
not affect the Trust's status as a grantor trust for United States federal
income tax purposes or the Trust's exemption from status as an "investment
company" under the Investment Company Act, provided that, without the consent of
each holder of Trust Securities, the Trust Agreement may not be amended to (i)
change the amount or timing of any Distribution on the Trust Securities or
reduce the amount payable on redemption thereof or otherwise adversely affect
the amount of any Distribution required to be made in respect of the Trust
Securities as of a specified date or (ii) restrict the right of a holder of
Trust Securities to institute suit for the enforcement of any such payment on or
after such date.
 
                                       36
<PAGE>
    So long as any Junior Subordinated Debentures are held by the Property
Trustee, the Issuer Trustees shall not (i) direct the time, method and place of
conducting any proceeding for any remedy available to the Debenture Trustee, or
execute any trust or power conferred on the Property Trustee with respect to the
Junior Subordinated Debentures, (ii) waive certain past defaults under the
Indenture, (iii) exercise any right to rescind or annul a declaration of
acceleration of the maturity of the principal of the Junior Subordinated
Debentures or (iv) consent to any amendment, modification or termination of the
Indenture or the Junior Subordinated Debentures, where such consent shall be
required, without, in each case, obtaining the prior approval of the holders of
a majority in Liquidation Amount of all outstanding Trust Preferred Securities;
provided, however, that where a consent under the Indenture would require the
consent of each holder of Junior Subordinated Debentures affected thereby, no
such consent shall be given by the Property Trustee without the prior approval
of each holder of the Trust Preferred Securities. The Issuer Trustees shall not
revoke any action previously authorized or approved by a vote of the holders of
the Trust Preferred Securities except by subsequent vote of such holders. The
Property Trustee shall notify each holder of Trust Preferred Securities of any
notice of default with respect to the Junior Subordinated Debentures. In
addition to obtaining the foregoing approvals of such holders of the Trust
Preferred Securities, prior to taking any of the foregoing actions, the Issuer
Trustees shall obtain an opinion of counsel experienced in such matters to the
effect that the Trust will not be classified as an association taxable as a
corporation for United States federal income tax purposes on account of such
action.
 
    Any required approval of holders of Trust Preferred Securities may be given
at a meeting of such holders convened for such purpose or pursuant to written
consent. The Property Trustee will cause a notice of any meeting at which
holders of Trust Preferred Securities are entitled to vote, or of any matter
upon which action by written consent of such holders is to be taken, to be given
to each holder of record of Trust Preferred Securities in the manner set forth
in the Trust Agreement.
 
    No vote or consent of the holders of Trust Preferred Securities will be
required for the Trust to redeem and cancel the Trust Preferred Securities in
accordance with the Trust Agreement.
 
    Notwithstanding that holders of the Trust Preferred Securities are entitled
to vote or consent under any of the circumstances described above, any of the
Trust Preferred Securities that are owned by the Corporation, the Trustees or
any affiliate of the Corporation or any Trustees, shall, for purposes of such
vote or consent, be treated as if they were not outstanding.
 
GLOBAL TRUST PREFERRED SECURITIES
 
    The Trust Preferred Securities will be represented by one or more global
certificates registered in the name of the Depositary or its nominee ("Global
Trust Preferred Security"). Beneficial interests in the Trust Preferred
Securities will be shown on, and transfer thereof will be effected only through,
records maintained by persons that have accounts with such Depositary
("Participants"). Except as described below, Trust Preferred Securities in the
certificated form will not be issued in exchange for the global certificates.
See "Book-Entry Issuance."
 
    A global security shall be exchangeable for Trust Preferred Securities
registered in the names of persons other than the Depositary or its nominee only
if (i) the Depositary notifies the Corporation that is unwilling or unable to
continue as a depositary for such global security and no successor depositary
shall have been appointed, or if at any time the Depositary ceases to be a
clearing agency registered under the Exchange Act, at a time when the Depositary
is required to be so registered to act as such depository, (ii) the Trust in its
sole discretion determines that such global security shall be so exchangeable,
or (iii) there shall have occurred and be continuing an Event of Default under
the Indenture. Any global security that is exchangeable pursuant to the
preceding sentence shall be exchangeable for definitive certificates registered
in such names as the Depositary shall direct. It is expected that such
instructions will be based upon directions received by the Depositary with
respect to ownership of beneficial interests in such global security. In the
event that Trust Preferred Securities are issued in definitive form, such Trust
 
                                       37
<PAGE>
Preferred Securities will be in denominations of $25 and integral multiples
thereof and may be transferred or exchanged at the offices described below.
 
    Unless and until it is exchanged in whole or in part for the individual
Trust Preferred Securities represented thereby, a Global Trust Preferred
Security may not be transferred except as a whole by the Depositary to a nominee
of such Depositary or by a nominee of such Depositary to such Depositary or
another nominee of such Depositary or by the Depositary or any nominee to a
successor Depositary or any nominee of such successor.
 
    Payments on Trust Preferred Securities represented by a global security will
be made to the Depositary, as the depositary for the Trust Preferred Securities.
In the event the Trust Preferred Securities are issued in definitive form,
Distributions will be payable, the transfer of the Trust Preferred Securities
will be registrable, and Trust Preferred Securities will be exchangeable for
Trust Preferred Securities of other denominations of a like aggregate
Liquidation Amount, at the corporate office of the Property Trustee, or at the
offices of any paying agent or transfer agent appointed by the Administrative
Trustees by check mailed to the address of the persons entitled thereto or by
wire transfer. For a description of the terms of the depositary arrangements
relating to payments, transfers, voting rights, redemptions and other notices
and other manners, see "Book-Entry Issuance."
 
    Upon the issuance of a Global Trust Preferred Security, and the deposit of
such Global Trust Preferred Security with or on behalf of the Depositary, the
Depositary for such Global Trust Preferred Security or its nominee will credit,
on its book-entry registration and transfer system, the respective aggregate
Liquidation Amounts of the individual Trust Preferred Securities represented by
such Global Trust Preferred Securities to the accounts of Participants. Such
accounts shall be designated by the dealers, underwriters or agents with respect
to such Trust Preferred Securities. Ownership of beneficial interests in a
Global Trust Preferred Security will be limited to Participants or persons that
may hold interests through Participants. Ownership of beneficial interests in
such Global Trust Preferred Security will be shown on, and the transfer of that
ownership will be effected only through, records maintained by the applicable
Depositary or its nominee (with respect to interests of Participants) and the
records of Participants (with respect to interests of persons who hold through
Participants). The laws of some states require that certain purchasers of
securities take physical delivery of such securities in definitive form. Such
limits and such laws may impair the ability to transfer beneficial interest in a
Global Trust Preferred Security.
 
    So long as the Depositary for a Global Trust Preferred Security, or its
nominee, is the registered owner of such Global Trust Preferred Security, such
Depositary or such nominee, as the case may be, will be considered the sole
owner or holder of the Trust Preferred Securities represented by such Global
Trust Preferred Security for all purposes under the Trust Agreement governing
such Trust Preferred Securities. Except as provided below, owners of beneficial
interest in a Global Trust Preferred Security will not be entitled to have any
of the individual Trust Preferred Securities represented by such Global Trust
Preferred Security registered in their names, will not receive or be entitled to
receive physical delivery of any such Trust Preferred Securities in definitive
form and will not be considered the owners or holders thereof under the Trust
Agreement.
 
    None of the Corporation, the Property Trustee, any Paying Agent (as defined
below), or the Securities Registrar (defined below) for such Trust Preferred
Securities will have any responsibility or liability for any aspect of the
records relating to or payments made on account of beneficial ownership
interests of the Global Trust Preferred Security representing such Trust
Preferred Securities or for maintaining supervising or reviewing any records
relating to such beneficial ownership interests.
 
    The Corporation expects that the Depositary for Trust Preferred Securities
or its nominee, upon receipt of any payment of the Liquidation Amount or
Distributions in respect of a permanent Global Trust Preferred Security
immediately will credit Participants' accounts with payments in amounts
proportionate to their respective beneficial interest in the aggregate
Liquidation Amount of such Global Trust Preferred Security as shown on the
records of such Depositary or its nominee. The Corporation also expects that
 
                                       38
<PAGE>
payments by Participants to owners of beneficial interests in such Global Trust
Preferred Security held through such Participants will be governed by standing
instructions and customary practices, as is now the case with securities held
for the accounts of customers in bearer form or registered in "street name."
Such payments will be the responsibility of such Participants.
 
    If the Depositary for the Trust Preferred Securities is at any time
unwilling, unable or ineligible to continue as depositary and a successor
depositary is not appointed by the Corporation within 90 days, the Trust will
issue individual Trust Preferred Securities in exchange for the Global Trust
Preferred Security. In addition, the Trust may at any time and in its sole
discretion, subject to any limitations described herein relating to such Trust
Preferred Securities, determine not to have any Trust Preferred Securities
represented by one or more Global Trust Preferred Securities and, in such event,
will issue individual Trust Preferred Securities in exchange for the Global
Trust Preferred Security or Securities representing the Trust Preferred
Securities. Further, if the Trust so specifies with respect to the Trust
Preferred Securities, an owner of a beneficial interest in a Global Trust
Preferred Security representing the Trust Preferred Securities may, on terms
acceptable to the Trust, the Property Trustee and the Depositary for such Global
Trust Preferred Security, receive individual Trust Preferred Securities in
exchange for such beneficial interests, subject to any limitations described
herein. In any such instance, an owner of a beneficial interest in a Global
Trust Preferred Security will be entitled to physical delivery of individual
Trust Preferred Securities represented by such Global Trust Preferred Security
equal in Liquidation Amount to such beneficial interest and to have such Trust
Preferred Securities registered in its name. Individual Trust Preferred
Securities so issued will be issued in denominations, unless otherwise specified
by the Corporation, of $25 and integral multiples thereof.
 
PAYMENT AND PAYING AGENCY
 
    Payments in respect of the Trust Preferred Securities held in global form
shall be made to the Depositary, which shall credit the relevant accounts at the
Depositary on the applicable Distribution Dates, or in respect of the Trust
Preferred Securities that are not held by the Depositary, such payments shall be
made by check mailed to the address of the holder entitled thereto as such
address shall appear on the register. The paying agent (the "Paying Agent")
shall initially be the Property Trustee and any co-paying agent chosen by the
Property Trustee and acceptable to the Administrative Trustees and the
Corporation. The Paying Agent shall be permitted to resign as Paying Agent upon
30 days' written notice to the Property Trustee, the Administrative Trustees and
the Corporation. In the event that the Property Trustee shall no longer be the
Paying Agent, the Administrative Trustees shall appoint a successor (which shall
be a bank or trust company acceptable to the Administrative Trustees and the
Corporation) to act as Paying Agent.
 
REGISTRAR AND TRANSFER AGENT
 
    The Property Trustee will act as registrar and transfer agent for the Trust
Preferred Securities. Registration of transfers of the Trust Preferred
Securities will be effected without charge by or on behalf of the Trust, but
upon payment of any tax or other governmental charges that may be imposed in
connection with any transfer or exchange. The Trust will not be required to
register or cause to be registered the transfer of the Trust Preferred
Securities after they have been called for redemption.
 
INFORMATION CONCERNING THE PROPERTY TRUSTEE
 
    The Property Trustee, other than during the occurrence and continuance of an
Event of Default, undertakes to perform only such duties as are specifically set
forth in the Trust Agreement and, during the existence of an Event of Default,
must exercise the same degree of care and skill as a prudent person would
exercise or use in the conduct of his or her own affairs. Subject to this
provision, the Property Trustee is under no obligation to exercise any of the
powers vested in it by the Trust Agreement at the request of any holder of Trust
Securities unless it is offered reasonable indemnity against the costs, expenses
and liabilities that might be incurred thereby. If no Event of Default has
occurred and is
 
                                       39
<PAGE>
continuing and the Property Trustee is required to decide between alternative
causes of action, construe ambiguous provisions in the Trust Agreement or is
unsure of the application of any provision of the Trust Agreement, and the
matter is not one on which holders of the Trust Securities are entitled under
the Trust Agreement to vote, then the Property Trustee shall take such action as
is directed by the Corporation and, if not so directed, shall take such action
as it deems advisable and in the best interests of the holders of the Trust
Securities and will have no liability except for its own bad faith, negligence
or willful misconduct.
 
MISCELLANEOUS
 
    The Administrative Trustees are authorized and directed to conduct the
affairs of and to operate the Trust in such a way that the Trust will not be
deemed to be an "investment company" required to be registered under the
Investment Company Act or classified as an association taxable as a corporation
for United States federal income tax purposes and so that the Junior
Subordinated Debentures will be treated as indebtedness of the Corporation for
United States federal income tax purposes. In this connection, the Corporation
and the Administrative Trustees are authorized to take any action, not
inconsistent with applicable law, the certificate of trust of the Trust or the
Trust Agreement, that the Corporation and the Administrative Trustees determine
in their discretion to be necessary or desirable for such purposes, as long as
such action does not materially adversely affect the interests of the holders of
the Trust Securities.
 
    Holders of the Trust Securities have no preemptive or similar rights.
 
    The Trust may not borrow money, issue debt, execute mortgages or pledge any
of its assets.
 
RATING
 
    The Trust Preferred Securities are rated "BB-" by Duff & Phelps, which is
below investment grade. Ratings are not a recommendation to purchase, hold or
sell the Trust Preferred Securities, as ratings do not comment as to market
price or suitability for a particular investor. The ratings are based on current
information furnished to Duff & Phelps by the Corporation and obtained from
other sources. The ratings may be changed, suspended or withdrawn at any time as
a result of changes in, or unavailability of, such information.
 
                                       40
<PAGE>
                 DESCRIPTION OF JUNIOR SUBORDINATED DEBENTURES
 
    The Junior Subordinated Debentures are to be issued under an Indenture, as
supplemented from time to time (as so supplemented, the "Indenture"), between
the Corporation and The Bank of New York, as trustee (the "Debenture Trustee").
The Indenture will be qualified under the Trust Indenture Act of 1939, as
amended (the "Trust Indenture Act"). This summary of certain terms and
provisions of the Junior Subordinated Debentures and the Indenture does not
purport to be complete, and where reference is made to particular provisions of
the Indenture, such provisions, including the definitions of certain terms, some
of which are not otherwise defined herein, are qualified in their entirety by
reference to all of the provisions of the Indenture and those terms made a part
of the Indenture by the Trust Indenture Act. The form of the Indenture has been
filed as an Exhibit to the Registration Statement.
 
    Concurrently with the issuance of the Trust Preferred Securities, the Trust
will invest the proceeds thereof, together with the consideration paid by the
Corporation for the Common Securities, in Junior Subordinated Debentures issued
by the Corporation. The Junior Subordinated Debentures will be issued as
unsecured debt under the Indenture.
 
GENERAL
 
    The Junior Subordinated Debentures will bear interest at the annual rate of
9.28% of the principal amount thereof, payable quarterly in arrears on the last
day of March, June, September and December of each year (each, an "Interest
Payment Date"), commencing June 30, 1997, to the person in whose name each
Junior Subordinated Debenture is registered, subject to certain exceptions, on
the fifteenth day of the month in which the relevant Interest Payment Date
occurs. Notwithstanding the above, in the event that either (i) Junior
Subordinated Debentures are held by the Property Trustee and the Trust Preferred
Securities are no longer in book-entry only form or (ii) the Junior Subordinated
Debentures are not represented by a Global Subordinated Debenture (as defined
herein), the record date for such payment shall be the first day of the month in
which such payment is made. The amount of each interest payment due with respect
to the Junior Subordinated Debentures will include amounts accrued through the
date the interest payment is due. It is anticipated that, until the liquidation,
if any, of the Trust, each Junior Subordinated Debenture will be held in the
name of the Property Trustee in trust for the benefit of the holders of the
Trust Preferred Securities. The amount of interest payable for any period will
be computed on the basis of a 360-day year of twelve 30-day months and, for any
period of less than a full calendar month, the number of days elapsed in such
month. In the event that any date on which interest is payable on the Junior
Subordinated Debentures is not a Business Day, then payment of the interest
payable on such date will be made on the next succeeding day that is a Business
Day (and without any interest or other payment in respect of any such delay),
except that if such next succeeding Business Day falls in the next succeeding
calendar year, then such payment shall be made on the immediately preceding
Business Day, in each case with the same force and effect as if made on such
date. Accrued interest that is not paid on the applicable Interest Payment Date
will bear additional interest on the amount thereof (to the extent permitted by
law) at the rate per annum of 9.28% thereof, compounded quarterly. The term
"interest," as used herein, shall include quarterly interest payments, interest
on quarterly interest payments not paid on the applicable Interest Payment Date
and Additional Sums (as defined below), as applicable.
 
    The Junior Subordinated Debentures will mature on May 19, 2027 (such date,
as it may be shortened as hereinafter described, the "Stated Maturity Date").
Such date may be shortened once at any time by the Corporation to any date not
earlier than May 19, 2002 subject to the Corporation having received prior
approval of the Federal Reserve if then required under applicable capital
guidelines or policies of the Federal Reserve. In the event that the Corporation
elects to shorten the Stated Maturity Date of the Junior Subordinated
Debentures, it shall give notice to the Indenture Trustee, and the Indenture
Trustee shall give notice of such shortening to the holders of the Junior
Subordinated Debentures no less than 90 days prior to the effectiveness thereof.
 
                                       41
<PAGE>
    The Junior Subordinated Debentures will rank PARI PASSU with all Other
Debentures and will be unsecured and will rank subordinate and junior in right
of payment to all Senior and Subordinated Indebtedness to the extent and in the
manner set forth in the Indenture. See "--Subordination."
 
    The Corporation is a holding company and almost all of the operating assets
of the Corporation are owned by the Corporation's subsidiary. The Corporation is
a legal entity separate and distinct from its subsidiary. Holders of Junior
Subordinated Debentures should look only to the Corporation for payments on the
Junior Subordinated Debentures. The principal sources of the Corporation's
income are dividends, interest and fees from its subsidiary. The Corporation
relies primarily on dividends from the Bank to meet its obligations for payment
of principal and interest on its corporate expenses. There are regulatory
limitations on the payment of dividends directly or indirectly to the
Corporation from the Bank. As of December 31, 1996, under applicable banking
statutes and the Bank's dividend policy, the total capital available for payment
of dividends by the Bank to the Corporation was approximately $24 million.
However, banking regulatory authorities have the power to prohibit any act,
including the payment of dividends, if such act would reduce bank capital to a
point that, in the opinion of such regulatory authorities, would render the Bank
undercapitalized and thus constitute an unsafe or unsound banking practice. In
addition, the Bank is subject to certain restrictions imposed by federal law on
any extensions of credit to, and certain other transactions with, the
Corporation and certain other affiliates, and on investments in stock or other
securities thereof. Such restrictions prevent the Corporation and such other
affiliates from borrowing from the Bank unless the loans are secured by various
types of collateral. Further, such secured loans, other transactions and
investments by the Bank is generally limited in amount as to the Corporation and
as to each of such other affiliates to 10% of the Bank's capital and surplus and
as to the Corporation and all of such other affiliates to an aggregate of 20% of
the Bank's capital and surplus.
 
    Because the Corporation is a holding company, the right of the Corporation
to participate in any distribution of assets of any subsidiary upon such
subsidiary's liquidation or reorganization or otherwise (and thus the ability of
holders of the Trust Preferred Securities to benefit indirectly from such
distribution), is subject to the prior claims of creditors of that subsidiary
(including depositors, in the case of the Bank), except to the extent the
Corporation may itself be recognized as a creditor of that subsidiary. At
December 31, 1996, the subsidiary of the Corporation had total liabilities
(excluding liabilities owed to the Corporation) of $1.0 billion. Accordingly,
the Junior Subordinated Debentures will be effectively subordinated to all
existing and future liabilities of the Corporation's subsidiary and all
liabilities of any future subsidiaries of the Corporation. The Indenture does
not limit the incurrence or issuance of other secured or unsecured debt of the
Corporation or any subsidiary, including Senior and Subordinated Indebtedness.
See "--Subordination."
 
OPTION TO EXTEND INTEREST PAYMENT DATE
 
    So long as no Debenture Event of Default has occurred and is continuing, the
Corporation will have the right under the Indenture to defer the payment of
interest on the Junior Subordinated Debentures at any time and from time to time
for a period not exceeding 20 consecutive quarterly periods with respect to each
Extension Period, provided that no Extension Period shall end on a date other
than an Interest Payment Date or extend beyond the Stated Maturity Date. At the
end of such Extension Period, the Corporation must pay all interest then accrued
and unpaid (together with interest thereon at the annual rate of 9.28%,
compounded quarterly, to the extent permitted by applicable law. During an
Extension Period, interest will continue to accrue and, if the Junior
Subordinated Debentures have been distributed to holders of the Trust Preferred
Securities, holders of Junior Subordinated Debentures (or holders of the Trust
Preferred Securities while Trust Preferred Securities are outstanding) will be
required to accrue such deferred interest income for United States federal
income tax purposes prior to the receipt of cash attributable to such income.
See "Certain Federal Income Tax Consequences--Interest Income and Original Issue
Discount."
 
                                       42
<PAGE>
    During any such Extension Period, the Corporation may not (i) declare or pay
any dividends or distributions on, or redeem, purchase, acquire, or make a
liquidation payment with respect to, any of the Corporation's capital stock,
(ii) make any payment of principal of, interest or premium, if any, on or repay,
repurchase or redeem any debt securities of the Corporation (including any Other
Debentures) that rank PARI PASSU with or junior in right of payment to the
Junior Subordinated Debentures or (iii) make any guarantee payments with respect
to any guarantee by the Corporation of the debt securities of any subsidiary of
the Corporation (including any Other Guarantees) if such guarantee ranks PARI
PASSU with or junior in right of payment to the Junior Subordinated Debentures
(other than (a) dividends or distributions in shares of, or options, warrants or
rights to subscribe for or purchase shares of, common stock of the Corporation,
(b) any declaration of a dividend in connection with the implementation of a
stockholders' rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto, (c)
payments under the Guarantee, (d) the purchase of fractional shares resulting
from a reclassification of the Corporation's capital stock, (e) the purchase of
fractional interests in shares of the Corporation's capital stock pursuant to
the conversion or exchange provisions of such capital stock or the security
being converted or exchanged, and (f) purchases of common stock related to the
issuance of common stock or rights under any of the Corporation's benefit plans
for its directors, officers or employees or any of the Corporation's dividend
reinvestment plans).
 
    Prior to the termination of any such Extension Period, the Corporation may
further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed 20 consecutive quarterly periods, end on a
date other than an Interest Payment Date or extend beyond the Stated Maturity
Date. Upon the termination of any such Extension Period and the payment of all
amounts then due on any Interest Payment Date, the Corporation may elect to
begin a new Extension Period, subject to the above requirements. No interest
shall be due and payable during an Extension Period, except at the end thereof.
The Corporation must give the Property Trustee, the Administrative Trustees and
the Debenture Trustee notice of its election of any Extension Period (or an
extension thereof) at least one Business Day prior to the earlier of (i) the
date the Distributions on the Trust Preferred Securities would have been payable
except for the election to begin or extend such Extension Period or (ii) the
date the Administrative Trustees are required to give notice to any securities
exchange or to holders of Trust Preferred Securities of the record date or the
date such Distributions are payable, but in any event not less than one Business
Day prior to such record date. The Debenture Trustee shall give notice of the
Corporation's election to begin or extend a new Extension Period to the holders
of the Trust Preferred Securities. There is no limitation on the number of times
that the Corporation may elect to begin an Extension Period.
 
ADDITIONAL SUMS
 
    If the Trust is required to pay any additional taxes, duties or other
governmental charges as a result of a Tax Event, the Corporation will pay as
additional amounts on the Junior Subordinated Debentures such amounts
("Additional Sums") as shall be required so that the Distributions payable by
the Trust shall not be reduced as a result of any such additional taxes, duties
or other governmental charges.
 
REDEMPTION
 
    Subject to the Corporation having received prior approval of the Federal
Reserve, if then required under applicable capital guidelines or policies of the
Federal Reserve, the Junior Subordinated Debentures are redeemable prior to
maturity at the option of the Corporation (i) on or after May 19, 2002, in whole
at any time or in part from time to time, or (ii) at any time in whole (but not
in part), upon the occurrence and during the continuance of a Special Event, in
each case at redemption price equal to the accrued and unpaid interest on the
Junior Subordinated Debentures so redeemed to the date fixed for redemption,
plus 100% of the principal amount thereof.
 
                                       43
<PAGE>
    Notice of any redemption will be mailed at least 30 days but not more than
60 days before the redemption date to each holder of Junior Subordinated
Debentures to be redeemed at such holder's registered address. Unless the
Corporation defaults in payments of the redemption price, on and after the
redemption date interest ceases to accrue on such Junior Subordinated Debentures
or portions thereof called for redemption.
 
    If the Trust is required to pay additional taxes, duties or other
governmental charges as a result of a Tax Event, the Corporation will pay as
additional amounts on the Junior Subordinated Debentures the Additional Sums.
 
    The Junior Subordinated Debentures will not be subject to any sinking fund.
 
DISTRIBUTION UPON LIQUIDATION
 
    As described under "Description of Trust Preferred Securities--Liquidation
Distribution Upon Termination," under certain circumstances involving the
termination of the Trust, the Junior Subordinated Debentures may be distributed
to the holders of the Trust Securities in liquidation of the Trust after
satisfaction of liabilities to creditors of the Trust as provided by applicable
law. If distributed to holders of the Trust Securities in liquidation, the
Junior Subordinated Debentures will initially be issued in the form of one or
more global securities and the Depositary or any successor depositary for the
Trust Preferred Securities, will act as depositary for the Junior Subordinated
Debentures. It is anticipated that the depositary arrangements for the Junior
Subordinated Debentures would be substantially identical to those in effect for
the Trust Preferred Securities. If the Junior Subordinated Debentures are
distributed to the holders of Trust Preferred Securities upon the liquidation of
the Trust, the Corporation will use its best efforts to list the Junior
Subordinated Debentures on the Nasdaq National Market or such other stock
exchanges or automated quotation system, if any, on which the Trust Preferred
Securities are then listed or quoted. There can be no assurance as to the market
price of any Junior Subordinated Debentures that may be distributed to the
holders of Trust Preferred Securities.
 
CERTAIN COVENANTS OF THE CORPORATION
 
    If at any time (1) there shall have occurred any event of which the
Corporation has actual knowledge that (a) is, or with the giving of notice or
the lapse of time, or both, would be, a Debenture Event of Default and (b) in
respect of which the Corporation shall not have taken reasonable steps to cure,
(2) the Corporation shall be in default with respect to its payment of any
obligations under the Guarantee or (3) the Corporation shall have given notice
of its election of an Extension Period as provided in the Indenture and shall
not have rescinded such notice, and such Extension Period, or any extension
thereof, shall have commenced and be continuing, then the Corporation will not,
(i) declare or pay any dividends or distributions on, or redeem, purchase,
acquire or make a liquidation payment with respect to, any of the Corporation's
capital stock, (ii) make any payment of principal, interest or premium, if any,
on or repay or repurchase or redeem any debt securities of the Corporation
(including Other Debentures) that rank PARI PASSU with or junior in right of
payment to the Junior Subordinated Debentures or (iii) make any guarantee
payments with respect to any guarantee by the Corporation of the debt securities
of any subsidiary of the Corporation (including under Other Guarantees) if such
guarantee ranks PARI PASSU or junior in right of payment to the Junior
Subordinated Debentures (other than (a) dividends or distributions in shares of,
or options, warrants or rights to subscribe for or purchase shares of, common
stock of the Corporation, (b) any declaration of a dividend in connection with
the implementation of a stockholders' rights plan, or the issuance of stock
under any such plan in the future, or the redemption or repurchase of any such
rights pursuant thereto, (c) payments under the Guarantee, (d) the purchase of
fractional shares resulting from a reclassification of the Corporation's capital
stock, (e) the purchase of fractional interests in shares of the Corporation's
capital stock pursuant to the conversion or exchange provisions of such capital
stock or the security being converted or exchanged, and (f) purchases of common
stock related
 
                                       44
<PAGE>
to the issuance of common stock or rights under any of the Corporation's benefit
plans for its directors, officers or employees or any of the Corporation's
dividend reinvestment plans).
 
    So long as the Trust Securities remain outstanding, the Corporation also
will covenant (i) to directly or indirectly maintain 100% direct or indirect
ownership of the Common Securities, provided, however, that any permitted
successor of the Corporation under the Indenture may succeed to the
Corporation's ownership of such Common Securities, (ii) to use its reasonable
efforts to cause the Trust (a) to remain a business trust, except in connection
with the distribution of Junior Subordinated Debentures to the holders of Trust
Securities in liquidation of the Trust, the redemption of all of the Trust
Securities of the Trust, or certain mergers, consolidations or amalgamations,
each as permitted by the Trust Agreement, and (b) to otherwise continue to be
classified as a grantor trust for United States federal income tax purposes and
(iii) to use its reasonable efforts to cause each holder of Trust Securities to
be treated as owning an undivided beneficial interest in the Junior Subordinated
Debentures.
 
SUBORDINATION
 
    In the Indenture, the Corporation has covenanted and agreed that any Junior
Subordinated Debentures issued thereunder will be subordinate and junior in
right of payment to all Senior and Subordinated Indebtedness to the extent
provided in the Indenture. Upon any payment or distribution of assets to
creditors upon any liquidation, dissolution, winding up, reorganization,
assignment for the benefit of creditors, marshaling of assets or any bankruptcy,
insolvency, debt restructuring or similar proceedings in connection with any
insolvency or bankruptcy proceeding of the Corporation, the holders of Senior
and Subordinated Indebtedness will first be entitled to receive payment in full
of principal of all Allocable Amounts (as defined below) on such Senior and
Subordinated Indebtedness before the holders of Junior Subordinated Debentures
will be entitled to receive or retain any payment in respect thereof.
 
    In the event of the acceleration of the maturity of Junior Subordinated
Debentures, the holders of all Senior and Subordinated Indebtedness outstanding
at the time of such acceleration will first be entitled to receive payment in
full of such amounts due thereon (including any amounts due upon acceleration)
before the holders of Junior Subordinated Debentures will be entitled to receive
or retain any payment in respect of the Junior Subordinated Debentures.
 
    No payments on account of principal, or interest, if any, in respect of the
Junior Subordinated Debentures may be made if there shall have occurred and be
continuing a default in any payment with respect to any Senior and Subordinated
Indebtedness, or an event of default with respect to any Senior and Subordinated
Indebtedness resulting in the acceleration of the maturity thereof, or if any
judicial proceeding shall be pending with respect to any such default.
 
    "Allocable Amounts," when used with respect to any Senior and Subordinated
Indebtedness, means all amounts due or to become due on such Senior and
Subordinated Indebtedness less, if applicable, any amount which would have been
paid to, and retained by, the holders of such Senior and Subordinated
Indebtedness (whether as a result of the receipt of payments by the holders of
such Senior and Subordinated Indebtedness from the Corporation or any other
obligor thereon or from any holders of, or trustee in respect of, other
indebtedness that is subordinate and junior in right of payment to such Senior
and Subordinated Indebtedness pursuant to any provision of such indebtedness for
the payment over of amounts received on account of such indebtedness to the
holders of such Senior and Subordinated Indebtedness or otherwise) but for the
fact that such Senior and Subordinated Indebtedness is subordinated or junior in
right of payment to (or subject to a requirement that amounts received on such
Senior and Subordinated Indebtedness be paid over to obligees on) trade accounts
payable or accrued liabilities arising in the ordinary course of business.
 
    "Indebtedness" shall mean with respect to any person, whether recourse is to
all or a portion of the assets of such person and whether or not contingent: (i)
every obligation of the any person for money borrowed; (ii) every obligation of
such person evidenced by bonds, debentures, notes or other similar
 
                                       45
<PAGE>
instruments, including obligations incurred in connection with the acquisition
of property, assets or businesses; (iii) every reimbursement obligation of such
person with respect to letters of credit, banker's acceptances or similar
facilities issued for the account of such person; (iv) every obligation of such
person issued or assumed as the deferred purchase price of property or services
(but excluding trade accounts payable or accrued liabilities arising in the
ordinary course of business); (v) every capital lease obligation of such person;
(vi) all indebtedness of such person whether incurred on or prior to the date of
the Indenture or thereafter incurred, for claims in respect of derivative
products, including interest rate, foreign exchange rate and commodity forward
contracts, options and swaps and similar arrangements; and (vii) every
obligation of the type referred to in clauses (i) through (vi) of another person
and all dividends of another person the payment of which, in either case, such
person has guaranteed or is responsible or liable, directly or indirectly, as
obligor or otherwise.
 
    "Senior and Subordinated Indebtedness" means the principal of (and premium,
if any) and interest, if any (including interest accruing on or after the filing
of any petition in bankruptcy or for reorganization relating to the Corporation
whether or not such claim for post-petition interest is allowed in such
proceeding), on Indebtedness of the Corporation whether incurred on or prior to
the date of the Indenture or thereafter incurred, unless in the instrument
creating or evidencing the same or pursuant to which the same is outstanding, it
is provided that such obligations are not superior in right of payment to the
Junior Subordinated Debentures or to other Indebtedness which is PARI PASSU
with, or subordinated to, the Junior Subordinated Debentures; provided, however,
that Senior and Subordinated Indebtedness shall not be deemed to include (i) any
Indebtedness of the Corporation which when incurred and without respect to any
election under section 1111(b) of the United States Bankruptcy Code of 1978, as
amended, was without recourse to the Corporation, (ii) any Indebtedness of the
Corporation to any of its subsidiaries, (iii) Indebtedness to any employee of
the Corporation, and (iv) any other debt securities issued pursuant to the
Indenture.
 
    The Corporation is a holding company and almost all of the operating assets
of the Corporation are owned by the Corporation's subsidiary. The Corporation
relies primarily on dividends from the Bank to meet its corporate expenses. The
Corporation is a legal entity separate and distinct from its subsidiaries.
Holders of Junior Subordinated Debentures should look only to the Corporation
for payments on the Junior Subordinated Debentures. There are regulatory
limitations on the payment of dividends directly or indirectly to the
Corporation from the Bank. See "--General." In addition, the Bank is subject to
certain restrictions imposed by federal law on any extensions of credit to, and
certain other transactions with, the Corporation and certain other affiliates,
and on investments in stock or other securities thereof. Such restrictions
prevent the Corporation and such other affiliates from borrowing from the Bank
unless the loans are secured by various types of collateral. Further, such
secured loans, other transactions and investments by the Bank are generally
limited in amount as to the Corporation and as to each of such other affiliates
to 10% of the Bank's capital and surplus and as to the Corporation and all of
such other affiliates to an aggregate of 20% of the Bank's capital and surplus.
Accordingly, the Junior Subordinated Debentures will be effectively subordinated
to all existing and future liabilities of the Corporation's subsidiaries.
 
    Because the Corporation is a holding company, the right of the Corporation
to participate in any distribution of assets of any subsidiary upon such
subsidiary's liquidation or reorganization or otherwise (and thus the ability of
holders of the Trust Preferred Securities to benefit indirectly from such
distribution), is subject to the prior claims of creditors of that subsidiary
(including depositors, in the case of the Bank), except to the extent the
Corporation may itself be recognized as a creditor of that subsidiary. At
December 31, 1996, the subsidiary of the Corporation had total liabilities
(excluding liabilities owed to the Corporation) of $1.0 billion. Accordingly,
the Junior Subordinated Debentures will be effectively subordinated to all
existing and future liabilities of the Corporation's subsidiary and all
liabilities of any future subsidiaries of the Corporation. The Indenture does
not limit the incurrence or issuance of other secured or unsecured debt of the
Corporation or any subsidiary, including Senior and Subordinated Indebtedness.
 
                                       46
<PAGE>
DENOMINATIONS, REGISTRATION AND TRANSFER
 
    The Junior Subordinated Debentures will be represented by global
certificates registered in the name of the Depositary or its nominee ("Global
Subordinated Debenture"). Beneficial interests in the Junior Subordinated
Debentures will be shown on, and transfers thereof will be effected only
through, records maintained by the Depositary. Except as described below, Junior
Subordinated Debentures in certificated form will not be issued in exchange for
the global certificates. See "Book-Entry Issuance."
 
    Unless and until a Global Subordinated Debenture is exchanged in whole or in
part for the individual Junior Subordinated Debentures represented thereby, it
may not be transferred except as a whole by the Depositary for such Global
Subordinated Debenture to a nominee of such Depositary or by a nominee of such
Depositary to such Depositary or another nominee of such Depositary or by the
Depositary or any nominee to a successor Depositary or any nominee of such
successor.
 
    A global security shall be exchangeable for Junior Subordinated Debentures
registered in the names of persons other than the Depositary or its nominee only
if (i) the Depositary notifies the Corporation that it is unwilling or unable to
continue as a depositary for such global security and no successor shall have
been appointed, or if at any time the Depositary ceases to be a clearing agency
registered under the Exchange Act, at a time when the Depositary is required to
be so registered to act as such depositary, (ii) the Corporation in its sole
discretion determines that such global security shall be so exchangeable or
(iii) there shall have occurred and be continuing a Debenture Event of Default
with respect to such global security. Any global security that is exchangeable
pursuant to the preceding sentence shall be exchangeable for definitive
certificates registered in such names as the Depositary shall direct. It is
expected that such instructions will be based upon directions received by the
Depositary from its Participants with respect to ownership of beneficial
interests in such global security. In the event that Junior Subordinated
Debentures are issued in definitive form, such Junior Subordinated Debentures
will be in denominations of $25 and integral multiples thereof and may be
transferred or exchanged at the offices described below.
 
    Payments on Junior Subordinated Debentures represented by a global security
will be made to the Depositary, as the depositary for the Junior Subordinated
Debentures. In the event Junior Subordinated Debentures will be registrable, and
Junior Subordinated Debentures will be exchangeable for Junior Subordinated
Debentures of other denominations of a like aggregate principal amount, at the
corporate office of the Debenture Trustee, or at the offices of any paying agent
or transfer agent appointed by the Corporation, provided that payment of
interest may be made at the option of the Corporation by check mailed to the
address of the persons entitled thereto or by wire transfer. In addition, if the
Junior Subordinated Debentures are issued in certificated form, the record dates
for payment of interest will be the first day of the month in which such payment
is to be made. For a description of the Depositary and the terms of the
depositary arrangements relating to payments, transfers, voting rights,
redemptions and other notices and other matters, see "Book-Entry Issuance."
 
    The Corporation will appoint the Debenture Trustee as securities registrar
under the Indenture (the "Securities Registrar"). Junior Subordinated Debentures
may be presented for exchange as provided above, and may be presented for
registration of transfer (with the form of transfer endorsed thereon, or a
satisfactory written instrument of transfer, duly executed), at the office of
the Securities Registrar. The Corporation may at any time rescind the
designation of any such transfer agent or approve a change in the location
through which any such transfer agent acts, provided that the Corporation
maintains a transfer agent in the place of payment. The Corporation may at any
time designate additional transfer agents with respect to the Junior
Subordinated Debentures.
 
    In the event of any redemption, neither the Corporation nor the Debenture
Trustee shall be required to (i) issue, register the transfer of or exchange
Junior Subordinated Debentures during a period beginning at the opening of
business 15 days before the day of selection for redemption of Junior
Subordinated Debentures and ending at the close of business on the day of
mailing of the relevant notice of redemption or (ii) transfer or exchange any
Junior Subordinated Debentures so selected for redemption, except, in the
 
                                       47
<PAGE>
case of any Junior Subordinated Debentures being redeemed in part, any portion
thereof not to be redeemed.
 
GLOBAL SUBORDINATED DEBENTURES
 
    Upon the issuance of the Global Subordinated Debenture and the deposit of
such Global Subordinated Debenture with or on behalf of the Depositary, the
Depositary for such Global Subordinated Debenture or its nominee will credit, on
its book-entry registration and transfer system, the respective principal
amounts of the individual Junior Subordinated Debentures represented by such
Global Subordinated Debenture to the accounts of persons that have accounts with
such Depositary ("Participants"). Ownership of beneficial interests in a Global
Subordinated Debenture will be limited to Participants or persons that may hold
interests through Participants. Ownership of beneficial interests in such Global
Subordinated Debenture will be shown on, and the transfer of that ownership will
be effected only through, records maintained by the applicable Depositary or its
nominee (with respect to interests of Participants). The laws of some states
require that certain purchasers of securities take physical delivery of such
securities in definitive form. Such limits and such laws may impair the ability
to transfer beneficial interests in a Global Subordinated Debenture.
 
    So long as the Depositary for a Global Subordinated Debenture, or its
nominee, is the registered owner of such Global Subordinated Debenture, such
Depositary or such nominee, as the case may be, will be considered the sole
owner or holder of the Junior Subordinated Debentures represented by such Global
Subordinated Debenture for all purposes under the Indenture governing such
Junior Subordinated Debentures. Except as provided below, owners of beneficial
interests in a Global Subordinated Debenture will not be entitled to have any of
the individual Junior Subordinated Debentures represented by such Global
Subordinated Debenture registered in their names, will not receive or be
entitled to receive physical delivery of any such Junior Subordinated Debentures
in definitive form and will not be considered the owners or holders thereof
under the Indenture.
 
    Payments of principal of and interest on individual Junior Subordinated
Debentures represented by a Global Subordinated Debenture registered in the name
of the Depositary or its nominee will be made to the Depositary or its nominee,
as the case may be, as the registered owner of the Global Subordinated Debenture
representing such Junior Subordinated Debentures. None of the Corporation, the
Debenture Trustee, any Paying Agent, or the Securities Registrar for such Junior
Subordinated Debentures will have any responsibility or liability for any aspect
of the records relating to or payments made on account of beneficial ownership
interests of the Global Subordinated Debenture representing such Junior
Subordinated Debentures or for maintaining, supervising or reviewing any records
relating to such beneficial
ownership interests.
 
    The Corporation expects that the Depositary or its nominee, upon receipt of
any payment of principal or interest in respect of a permanent Global
Subordinated Debenture representing the Junior Subordinated Debentures,
immediately will credit Participants' accounts with payments in amounts
proportionate to their respective beneficial interest in the principal amount of
the Global Subordinated Debenture as shown on the records of such Depositary or
its nominee. The Corporation also expects that payments by Participants to
owners of beneficial interests in such Global Subordinated Debenture held
through such Participants will be governed by standing instructions and
customary practices, as is now the case with securities held for the accounts of
customers in bearer form or registered in "street name." Such payments will be
the responsibility of such Participants.
 
    If the Depositary is at any time unwilling, unable or ineligible to continue
as depositary and a successor depositary is not appointed by the Corporation
with 90 days, the Corporation will issue individual Junior Subordinated
Debentures in exchange for the Global Subordinated Debenture. In addition, the
Corporation may at any time and in its sole discretion, determine not to have
the Junior Subordinated Debentures represented by one or more Global
Subordinated Debenture and, in such event,
 
                                       48
<PAGE>
will issue individual Junior Subordinated Debentures in exchange for the Global
Subordinated Debenture. Further, the Corporation so specifies with respect to
the Junior Subordinated Debentures, an owner of a beneficial interest in a
Global Subordinated Debenture representing Junior Subordinated Debentures may,
on terms acceptable to the Corporation, the Debenture Trustee and the Depositary
for such Global Subordinated Debenture, receive individual Junior Subordinated
Debentures in exchange for such beneficial interests. In any such instance, an
owner of a beneficial interest in a Global Subordinated Debenture will be
entitled to physical delivery of individual Junior Subordinated Debentures
registered in its name. Individual Junior Subordinated Debentures so issued will
be issued in denominations, unless otherwise specified by the Corporation, of
$25 and integral multiples thereof.
 
PAYMENT AND PAYING AGENTS
 
    Payment of principal of and any interest on Junior Subordinated Debentures
will be made at the office of the Debenture Trustee in the City of New York or
at the office of such Paying Agent or Paying Agents as the Corporation may
designate from time to time, except that at the option of the Corporation
payment of any interest may be made, except in the case of Junior Subordinated
Debentures in global form, (i) by check mailed to the address of the Person
entitled thereto as such address shall appear in the register for Junior
Subordinated Debentures or (ii) by transfer to an account maintained by the
Person entitled thereto as specified in such register, provided that proper
transfer instructions have been received by the relevant Record Date. Payment of
any interest on any Junior Subordinated Debenture will be made to the Person in
whose name such Junior Subordinated Debenture is registered at the close of
business on the Record Date for such interest. The Corporation may at any time
designate additional Paying Agents or rescind the designation of any Paying
Agent; however the Corporation will at all times be required to maintain a
Paying Agent in each place of payment for the Junior Subordinated Debentures.
 
    Any moneys deposited with the Debenture Trustee or any Paying Agent, or then
held by the Corporation in trust, for the payment of the principal of or
interest on any Junior Subordinated Debenture and remaining unclaimed for two
years after such principal or interest has become due and payable shall, at the
request of the Corporation, be repaid to the Corporation and the holder of such
Junior Subordinated Debenture shall thereafter look, as a general unsecured
creditor, only to the Corporation for payment thereof.
 
MODIFICATION OF INDENTURE
 
    From time to time the Corporation and the Debenture Trustee may, without the
consent of the holders of Junior Subordinated Debentures, amend, waive or
supplement the Indenture for specified purposes, including, among other things,
curing ambiguities, defects or inconsistencies (provided that any such action
does not materially adversely affect the interest of the holders of Junior
Subordinated Debentures), and qualifying, or maintaining the qualification of,
the Indenture under the Trust Indenture Act. The Indenture contains provisions
permitting the Corporation and the Debenture Trustee, with the consent of the
holders of a majority in principal amount of Junior Subordinated Debentures, to
modify the Indenture in a manner affecting the rights of the holders of Junior
Subordinated Debentures; provided that no such modification may, without the
consent of the holders of each outstanding Junior Subordinated Debenture so
affected, (i) change the Stated Maturity Date, or reduce the principal amount of
the Junior Subordinated Debentures or reduce the rate or extend the time of
payment of interest thereon except pursuant to the Corporation's right under the
Indenture to defer the payment of interest as provided therein (see "--Option to
Extend Interest Payment Date") or make the principal of, or interest on, the
Junior Subordinated Debentures payable in any coin or currency other than U.S.
dollars, or impair or affect the right of any holder of Junior Subordinated
Debentures to institute suit for the payment thereof, or (ii) reduce the
percentage of principal amount of Junior Subordinated Debentures, the holders of
which are required to consent to any such modification of the Indenture,
provided that so long as any of the Trust Preferred Securities remain
outstanding, no such modification may be made that adversely affects the
 
                                       49
<PAGE>
holders of such Trust Preferred Securities in any material respect, and no
termination of the Indenture may occur, and no waiver of any Debenture Event of
Default or compliance with any covenant under the Indenture may be effective,
without the prior consent of the holders of at least a majority of the aggregate
Liquidation Amount of the Trust Preferred Securities unless and until the
principal of the Junior Subordinated Debentures and all accrued and unpaid
interest thereon have been paid in full and certain other conditions are
satisfied. Where a consent under the Indenture would require the consent of each
holder of Junior Subordinated Debentures, no such consent shall be given by the
Property Trustee without the prior consent of each holder of Trust Preferred
Securities. In addition, the Corporation and the Debenture Trustee may execute,
without the consent of any holder of Junior Subordinated Debentures, any
supplemental Indenture for the purpose of creating any new series of Junior
Subordinated Debentures.
 
DEBENTURE EVENTS OF DEFAULT
 
    The Indenture provides that any one or more of the following described
events with respect to the Junior Subordinated Debentures constitutes a
"Debenture Event of Default" (whatever the reason for such Debenture Event of
Default and whether it shall be voluntary or involuntary or be effected by
operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):
 
        (i) failure for 30 days to pay any interest on the Junior Subordinated
    Debentures or any other Debentures, when due (subject to the deferral of any
    due date in the case of an Extension Period); or
 
        (ii) failure to pay any principal on the Junior Subordinated Debentures
    or any other Debentures when due whether at maturity, upon redemption, by
    declaration of acceleration of maturity or otherwise; or
 
       (iii) failure to observe or perform in any material respect certain other
    covenants contained in the Indenture for 90 days after written notice to the
    Corporation from the Debenture Trustee or the holders of at least 25% in
    aggregate outstanding principal amount of Junior Subordinated Debentures; or
 
        (iv) certain events of bankruptcy, insolvency or reorganization of the
    Corporation.
 
    The holders of a majority in aggregate outstanding principal amount of the
Junior Subordinated Debentures have, subject to certain exceptions, the right to
direct the time, method and place of conducting any proceeding for any remedy
available to the Debenture Trustee. The Debenture Trustee or the holders of not
less than 25% in aggregate outstanding principal amount of the Junior
Subordinated Debentures may declare the principal due and payable immediately
upon a Debenture Event of Default. If the Debenture Trustee or such holders of
such Junior Subordinated Debentures fail to make such declaration, the holders
of at least 25% in the aggregate Liquidation Amount of the Trust Preferred
Securities shall have such right. The holders of a majority in aggregate
outstanding principal amount of the Junior Subordinated Debentures may annul
such declaration and waive the default if the default (other than the
non-payment of the principal of the Junior Subordinated Debentures which has
become due solely by such acceleration) has been cured and a sum sufficient to
pay all matured installments of interest and principal due otherwise than by
acceleration has been deposited with the Debenture Trustee. Should the holders
of the Junior Subordinated Debentures fail to annul such declaration and waive
such default, the holders of a majority in aggregate Liquidation Amount of the
Trust Preferred Securities shall have such right.
 
    The holders of a majority in aggregate outstanding principal amount of the
Junior Subordinated Debentures affected thereby may, on behalf of the holders of
all the Junior Subordinated Debentures, waive any past default, except a default
in the payment of principal on or interest (unless such default has been cured
and a sum sufficient to pay all matured installments of interest and principal
due otherwise
 
                                       50
<PAGE>
than by acceleration has been deposited with the Debenture Trustee) or a default
in respect of a covenant or provision which under the Indenture cannot be
modified or amended without the consent of the holder of each outstanding Junior
Subordinated Debenture.
 
    In case a Debenture Event of Default shall occur and be continuing as to
Junior Subordinated Debentures, the Property Trustee will have the right to
declare the principal of and the interest on such Junior Subordinated
Debentures, and any other amounts payable under the Indenture, to be forthwith
due and payable and to enforce its other rights as a creditor with respect to
such Junior Subordinated Debentures.
 
    The Indenture requires the annual filing by the Corporation with the
Debenture Trustee of a certificate as to the absence of certain defaults under
the Indenture.
 
ENFORCEMENT OF CERTAIN RIGHTS BY HOLDERS OF TRUST PREFERRED SECURITIES
 
    If a Debenture Event of Default shall have occurred and be continuing and
shall be attributable to the failure of the Corporation to pay the principal of
or interest on the Junior Subordinated Debentures on the due date, a holder of
Trust Preferred Securities may institute a Direct Action. The Corporation may
not amend the Indenture to remove the foregoing right to bring a Direct Action
without the prior written consent of the holders of all of the Trust Preferred
Securities. If the right to bring a Direct Action is removed, the Trust may
become subject to the reporting obligations under the Exchange Act.
Notwithstanding any payments made to a holder of Trust Preferred Securities by
the Corporation in connection with a Direct Action, the Corporation shall remain
obligated to pay the principal of or interest on the Junior Subordinated
Debentures, and the Corporation shall be subrogated to the rights of the holder
of such Trust Preferred Securities with respect to payments on the Trust
Preferred Securities to the extent of any payments made by the Corporation to
such holder in any Direct Action.
 
    The holders of the Trust Preferred Securities will not be able to exercise
directly any remedies, other than those set forth in the preceding paragraph,
available to the holders of the Junior Subordinated Debentures unless there
shall have been an Event of Default under the Trust Agreement. See "Description
of Trust Preferred Securities--Events of Default; Notice."
 
CONSOLIDATION, MERGER, SALE OF ASSETS AND OTHER TRANSACTIONS
 
    The Indenture provides that the Corporation shall not consolidate with or
merge into any other person or convey, transfer or lease its properties as an
entirety or substantially as an entirety to any person, and no person shall
consolidate with or merge into the Corporation or convey, transfer or lease its
properties as an entirety or substantially as an entirety to the Corporation,
unless: (i) in case the Corporation consolidates with or merges into another
person or conveys or transfers its properties substantially as an entirety to
any person, the successor person is organized under the laws of the United
States or any State or the District of Columbia, and such successor person
expressly assumes the Corporation's obligations on the Junior Subordinated
Debentures; (ii) immediately after giving effect thereto, no Debenture Event of
Default, and no event which, after notice or lapse of time or both, would become
a Debenture Event of Default, shall have occurred and be continuing; and (iii)
certain other conditions as prescribed in the Indenture are met.
 
    The general provisions of the Indenture do not afford holders of the Junior
Subordinated Debentures protection in the event of a highly leveraged or other
transaction involving the Corporation that may adversely affect holders of the
Junior Subordinated Debentures.
 
SATISFACTION AND DISCHARGE
 
    The Indenture provides that when, among other things, all Junior
Subordinated Debentures not previously delivered to the Debenture Trustee for
cancellation (i) have become due and payable or (ii) will
 
                                       51
<PAGE>
become due and payable at maturity or called for redemption within one year, and
the Corporation deposits or causes to be deposited with the Debenture Trustee
funds, in trust, for the purpose and in an amount sufficient to pay and
discharge the entire indebtedness on the Junior Subordinated Debentures not
previously delivered to the Debenture Trustee for cancellation, for the
principal and interest to the Stated Maturity Date, then the Indenture will
cease to be of further effect (except as to the Corporation's obligations to pay
all other sums due pursuant to the Indenture and to provide the officers'
certificates and opinions of counsel described therein), and the Corporation
will be deemed to have satisfied and discharged the Indenture.
 
COVENANTS OF THE CORPORATION
 
    The Corporation will covenant in the Indenture, as to the Junior
Subordinated Debentures, that if and so long as (i) the Trust is the holder of
all such Junior Subordinated Debentures, (ii) a Tax Event in respect of the
Trust has occurred and is continuing and (iii) the Corporation has elected, and
has not revoked such election, to pay Additional Sums (as defined under
"Description of the Trust Preferred Securities-- Redemption") in respect of the
Trust Preferred Securities, the Corporation will pay to the Trust such
Additional Sums. The Corporation will also covenant, as to the Junior
Subordinated Debentures, (i) to maintain directly or indirectly 100% ownership
of the Common Securities of the Trust to which Junior Subordinated Debentures
have been issued, provided that certain successors which are permitted pursuant
to the Indenture may succeed to the Corporation's ownership of the Common
Securities, (ii) not to voluntarily terminate, wind up or liquidate the Trust
except as prior approval of the Federal Reserve if then so required under
applicable capital guidelines or policies of the Federal Reserve, and except (a)
in connection with a distribution of Junior Subordinated Debentures to the
holders of the Trust Preferred Securities in liquidation of the Trust or (b) in
connection with certain mergers, consolidations, or amalgamations permitted by
the Trust Agreement and (iii) to use its reasonable efforts, consistent with the
terms and provisions of the Trust Agreement, to cause the Trust to remain
classified as a grantor trust and not as an association taxable as a corporation
for United States federal income tax purposes.
 
GOVERNING LAW
 
    The Indenture and the Junior Subordinated Debentures will be governed by and
construed in accordance with the laws of the State of New York.
 
INFORMATION CONCERNING THE DEBENTURE TRUSTEE
 
    The Debenture Trustee shall have and be subject to all the duties and
responsibilities specified with respect to an indenture trustee under the Trust
Indenture Act. Subject to such provisions, the Debenture Trustee is under no
obligation to exercise any of the powers vested in it by the Indenture at the
request of any holder of Junior Subordinated Debentures, unless offered
reasonable indemnity by such holder against the costs, expenses and liabilities
which might be incurred thereby. The Debenture Trustee is not required to expend
or risk its own funds or otherwise incur personal financial liability in the
performance of its duties if the Debenture Trustee reasonably believes that
repayment or adequate indemnity is not reasonably assured to it.
 
                                       52
<PAGE>
                            DESCRIPTION OF GUARANTEE
 
    The Guarantee will be executed and delivered by the Corporation concurrently
with the issuance by the Trust of the Trust Preferred Securities for the benefit
of the holders from time to time of the Trust Preferred Securities. The Bank of
New York will act as Guarantee Trustee under the Guarantee for purposes of
compliance with the Trust Indenture Act, and the Guarantee will be qualified as
an Indenture under the Trust Indenture Act. This summary of certain provisions
of the Guarantee does not purport to be complete and is subject to, and
qualified in its entirety by reference to, all of the provisions of the
Guarantee, including the definitions therein of certain terms, and the Trust
Indenture Act. The form of the Guarantee has been filed as an exhibit to the
Registration Statement of which this Prospectus forms a part. The Guarantee
Trustee will hold the Guarantee for the benefit of the holders of the Trust
Preferred Securities.
 
GENERAL
 
    The Guarantee will be an irrevocable guarantee on a subordinated basis of
the Trust's obligations under the Trust Preferred Securities, but will apply
only to the extent that the Trust has funds sufficient to make such payments,
and is not a guarantee of collection.
 
    The Corporation will irrevocably agree to pay in full on a subordinated
basis, to the extent set forth herein, the Guarantee Payments (as defined below)
to the holders of the Trust Preferred Securities, as and when due, regardless of
any defense, right of set-off or counterclaim that the Trust may have or assert
other than the defense of payment. The following payments with respect to the
Trust Preferred Securities, to the extent not paid by or on behalf of the Trust
(the "Guarantee Payments"), will be subject to the Guarantee: (i) any
accumulated and unpaid Distributions required to be paid on the Trust Preferred
Securities, to the extent that the Trust has funds on hand legally available
therefor at such time, (ii) the applicable redemption price with respect to the
Trust Preferred Securities called for redemption, to the extent that the Trust
has funds on hand legally available therefor at such time, and (iii) upon a
voluntary or involuntary dissolution, winding-up or liquidation of the Trust
(other than in connection with the distribution of the Junior Subordinated
Debentures to holders of the Trust Preferred Securities or the redemption of all
Trust Preferred Securities), the lesser of (a) the Liquidation Distribution, to
the extent the Trust has funds legally available therefor at the time, and (b)
the amount of assets of the Trust remaining available for distribution to
holders of Trust Preferred Securities after satisfaction of liabilities to
creditors of the Trust as required by applicable law. The Corporation's
obligation to make a Guarantee Payment may be satisfied by direct payment of the
required amounts by the Corporation to the holders of the Trust Preferred
Securities or by causing the Trust to pay such amounts to such holders.
 
    If the Corporation does not make interest payments on the Junior
Subordinated Debentures held by the Trust, the Trust will not be able to pay
Distributions on the Trust Preferred Securities and will not have funds legally
available therefor. The Guarantee will rank subordinate and junior in right of
payment to all Senior and Subordinated Indebtedness to the extent provided
therein. See "--Status of the Guarantee." Because the Corporation is a holding
company, the right of the Corporation to participate in any distribution of
assets of any subsidiary upon such subsidiary's liquidation or reorganization or
otherwise is subject to the prior claims of creditors of that subsidiary, except
to the extent the Corporation may itself be recognized as a creditor of that
subsidiary. Accordingly, the Corporation's obligations under the Guarantee
effectively will be subordinated to all existing and future liabilities of the
Corporation's subsidiary and all liabilities of any future subsidiaries of the
Corporation. Claimants should look only to the assets of the Corporation for
payments under the Guarantee. See "Description of the Junior Subordinated
Debentures--General." The Guarantee does not limit the incurrence or issuance of
other secured or unsecured debt of the Corporation, including Senior and
Subordinated Indebtedness, whether under the Indenture, any other indenture that
the Corporation may enter into in the future or otherwise.
 
                                       53
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    The Corporation will, through the Guarantee, the Trust Agreement, the Junior
Subordinated Debentures and the Indenture, taken together, fully, irrevocably
and unconditionally guarantee all of the Trust's obligations under the Trust
Preferred Securities. No single document standing alone or operating in
conjunction with fewer than all of the other documents constitutes such
guarantee. It is only the combined operation of these documents that has the
effect of providing a full, irrevocable and unconditional guarantee of the
Trust's obligations under the Trust Preferred Securities. See "Relationship
Among the Trust Preferred Securities, the Junior Subordinated Debentures and the
Guarantee."
 
STATUS OF THE GUARANTEE
 
    The Guarantee will constitute an unsecured obligation of the Corporation and
will rank subordinate and junior in right of payment to all Senior and
Subordinated Indebtedness in the same manner as the Junior Subordinated
Debentures.
 
    The Guarantee will constitute a guarantee of payment and not of collection
(i.e., the guaranteed party may institute a legal proceeding directly against
the Corporation to enforce its rights under the Guarantee without first
instituting a legal proceeding against any other person or entity). The
Guarantee will be held for the benefit of the holders of the Trust Preferred
Securities. The Guarantee will not be discharged except by payment of the
Guarantee Payments in full to the extent not paid by the Trust or upon
distribution to the holders of the Trust Preferred Securities of the Junior
Subordinated Debentures. The Guarantee does not place a limitation on the amount
of additional Senior and Subordinated Indebtedness that may be incurred by the
Corporation.
 
EVENTS OF DEFAULT
 
    An event of default under the Guarantee will occur upon the failure of the
Corporation to perform any of its payment or other obligations thereunder. The
holders of not less than a majority in aggregate Liquidation Amount of the Trust
Preferred Securities will have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Guarantee Trustee in
respect of the Guarantee or to direct the exercise of any trust or power
conferred upon the Guarantee Trustee under the Guarantee.
 
    Any holder of the Trust Preferred Securities may institute a legal
proceeding directly against the Corporation to enforce its rights under the
Guarantee without first instituting a legal proceeding against the Trust, the
Guarantee Trustee or any other person or entity.
 
    The Corporation, as guarantor, will be required to file annually with the
Guarantee Trustee a certificate as to whether or not the Corporation is in
compliance with all the conditions and covenants applicable to it under the
Guarantee.
 
AMENDMENTS AND ASSIGNMENT
 
    Except with respect to any changes that do not materially adversely affect
the rights of holders of the Trust Preferred Securities (in which case no vote
will be required), the Guarantee may not be amended without the prior approval
of the holders of a majority of the aggregate Liquidation Amount of such
outstanding Trust Preferred Securities. The manner of obtaining any such
approval will be as set forth under "Description of Trust Preferred
Securities--Voting Rights; Amendment of the Trust Agreement." All guarantees and
agreements contained in the Guarantee Agreement shall bind the successors,
assigns, receivers, trustees and representatives of the Corporation and shall
inure to the benefit of the holders of the Trust Preferred Securities then
outstanding.
 
                                       54
<PAGE>
TERMINATION OF THE GUARANTEE
 
    The Guarantee will terminate and be of no further force and effect upon full
payment of the redemption price of the Trust Preferred Securities, upon full
payment of the Liquidation Amount payable upon liquidation of the Trust or upon
distribution of Junior Subordinated Debentures to the holders of the Trust
Preferred Securities. The Guarantee will continue to be effective or will be
reinstated, as the case may be, if at any time any holder of the Trust Preferred
Securities must restore payment of any sums paid under the Trust Preferred
Securities or the Guarantee.
 
INFORMATION CONCERNING THE GUARANTEE TRUSTEE
 
    The Guarantee Trustee, other than during the occurrence and continuance of a
default by the Corporation in performance of the Guarantee, will undertake to
perform only such duties as are specifically set forth in the Guarantee and, in
case a default with respect to the Guarantee has occurred, must exercise the
same degree of care and skill as a prudent person would exercise or use in the
conduct of his or her own affairs. Subject to this provision, the Guarantee
Trustee will be under no obligation to exercise any of the powers vested in it
by the Guarantee at the request of any holder of the Trust Preferred Securities
unless it is offered reasonable indemnity against the costs, expenses and
liabilities that might be incurred thereby.
 
GOVERNING LAW
 
    The Guarantee will be governed by and construed in accordance with the laws
of the State of New York.
 
                              BOOK-ENTRY ISSUANCE
 
    The Depositary will act as securities depositary for all of the Trust
Preferred Securities and the Junior Subordinated Debentures. The Trust Preferred
Securities and the Junior Subordinated Debentures will be issued only as
fully-registered securities registered in the name of Cede & Co. (the
Depositary's nominee). One or more fully-registered global certificates will be
issued for the Trust Preferred Securities and the Junior Subordinated Debentures
and will be deposited with the Depositary.
 
    The Depositary is a limited purpose trust company organized under the New
York Banking Law, as "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Exchange
Act. The Depositary holds securities that its Participants deposit with the
Depositary. The Depositary also facilitates the settlement among Participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic computerized book-entry changes in Participants' accounts,
thereby eliminating the need for physical movement of securities certificates.
"Direct Participants" include securities brokers and dealers, banks, trust
companies, clearing corporations and certain other organizations. The Depositary
is owned by a number of its Direct Participants and by the New York Stock
Exchange, Inc., the American Stock Exchange, Inc. and the National Association
of Securities Dealers, Inc. Access to the Depositary system is also available to
others such as securities brokers and dealers, banks and trust companies that
clear through or maintain custodial relationships with Direct Participants,
either directly or indirectly ("Indirect Participants"). The rules applicable to
the Depositary and its Participants are on file with the Commission.
 
    Purchases of Trust Preferred Securities or Junior Subordinated Debentures
within the Depositary system must be made by or through Direct Participants,
which will receive a credit for the Trust Preferred Securities or Junior
Subordinated Debentures on the Depositary's records. The ownership interest of
each actual purchaser of each Trust Preferred Securities and each Subordinated
Debenture ("Beneficial Owner") is in turn to be recorded on the Direct and
Indirect Participants' records. Beneficial Owners will
 
                                       55
<PAGE>
not receive written confirmation from the Depositary of their purchases, but
Beneficial Owners are expected to receive written confirmations providing
details of the transactions, as well as periodic statements of their holdings,
from the Direct or Indirect Participants through which the Beneficial Owners
purchased Trust Preferred Securities or Junior Subordinated Debentures.
Transfers of ownership interests in the Trust Preferred Securities or Junior
Subordinated Debentures are to be accomplished by entries made on the books of
Participants acting on behalf of Beneficial Owners. Beneficial Owners will not
receive certificates representing their ownership interests in Trust Preferred
Securities or Junior Subordinated Debentures, except in the event that use of
the book-entry system for the Junior Subordinated Debentures is discontinued.
 
    The Depositary has no knowledge of the actual Beneficial Owners of the Trust
Preferred Securities or Junior Subordinated Debentures; the Depositary's records
reflect only the identity of the Direct Participants to whose accounts such
Trust Preferred Securities or Junior Subordinated Debentures are credited, which
may or may not be the Beneficial Owners. The Participants will remain
responsible for keeping account of their holdings on behalf of their customers.
 
    Conveyance of notices and other communications by the Depositary to Direct
Participants, by Direct Participants to Indirect Participants, and by Direct
Participants and Indirect Participants to Beneficial Owners and the voting
rights of Direct Participants, Indirect Participants and Beneficial Owners will
be governed by arrangements among them, subject to any statutory or regulatory
requirements as may be in effect from time to time.
 
    Redemption notices will be sent to Cede & Co. as the registered holder of
the Trust Preferred Securities or Junior Subordinated Debentures. If less than
all of the Trust Preferred Securities or the Junior Subordinated Debentures are
being redeemed, the Depositary will determine by lot or PRO RATA the amount of
the Trust Preferred Securities of each Direct Participant to be redeemed.
 
    Although voting with respect to the Trust Preferred Securities or the Junior
Subordinated Debentures is limited to the holders of record of the Trust
Preferred Securities or Junior Subordinated Debentures, as applicable, in those
instances in which a vote is required, neither the Depositary nor Cede & Co.
will itself consent or vote with respect to Trust Preferred Securities or Junior
Subordinated Debentures. Under its usual procedures, the Depositary would mail
an omnibus proxy (the "Omnibus Proxy") to the relevant Issuer Trustee as soon as
possible after the record date. The Omnibus Proxy assigns Cede & Co.'s
consenting or voting rights to those Direct Participants to whose accounts such
Trust Preferred Securities or Junior Subordinated Debentures are credited on the
record date (identified in a listing attached to the Omnibus Proxy).
 
    Distribution payments on the Trust Preferred Securities or the Junior
Subordinated Debentures will be made by the relevant Issuer Trustee to the
Depositary. The Depositary's practice is to credit Direct Participants' accounts
on the relevant payment date in accordance with their respective holdings shown
on the Depositary's records unless the Depositary has reason to believe that it
will not receive payments on such payment date. Payments by Participants to
Beneficial Owners will be governed by standing instructions and customary
practices and will be the responsibility of such Participant and not of the
Depositary, the relevant Issuer Trustee, the Trust or the Corporation, subject
to any statutory or regulatory requirements as may be in effect from time to
time. Payment of Distributions to the Depositary is the responsibility of the
relevant Issuer Trustee, disbursement of such payments to Direct Participants is
the responsibility of the Depositary, and disbursements of such payments to the
Beneficial Owners is the responsibility of Direct and Indirect Participants.
 
    The Depositary may discontinue providing its services as securities
depositary with respect to any of the Trust Preferred Securities or the Junior
Subordinated Debentures at any time by giving reasonable notice to the relevant
Issuer Trustee and the Corporation. In the event that a successor securities
depositary is not obtained, definitive Trust Preferred Securities or
Subordinated Debentures certificates representing such Trust Preferred
Securities or Junior Subordinated Debentures are required to be printed
 
                                       56
<PAGE>
and delivered. The Corporation, at its option, may decide to discontinue use the
system of book-entry transfers through the Depositary (or a successor
depositary). After a Debenture Event of Default, the holders of a majority in
liquidation preference of Trust Preferred Securities or aggregate principal
amount of Junior Subordinated Debentures may determine to discontinue the system
of book-entry transfers through the Depositary. In any such event, definitive
certificates for such Trust Preferred Securities or Junior Subordinated
Debentures will be printed and delivered.
 
    The information in this section concerning the Depositary and the
Depositary's book-entry system has been obtained from sources that the Trust and
the Corporation believe to be accurate but the Trust and the Corporation assume
no responsibility for the accuracy thereof. Neither the Trust nor the
Corporation has any responsibility for the performance by the Depositary or its
Participants of their respective obligations as described herein or under the
rules and procedures governing their respective operations.
 
                                       57
<PAGE>
             RELATIONSHIP AMONG THE TRUST PREFERRED SECURITIES, THE
                JUNIOR SUBORDINATED DEBENTURES AND THE GUARANTEE
 
FULL AND UNCONDITIONAL GUARANTEE
 
    Payments of Distributions and other amounts due on the Trust Preferred
Securities (to the extent the Trust has funds on hand legally available for the
payment of such Distributions) will be irrevocably guaranteed by the Corporation
as and to the extent set forth under "Description of Guarantee." Taken together,
the Corporation's obligations under the Junior Subordinated Debentures, the
Indenture, the Trust Agreement and the Guarantee will provide, in the aggregate,
a full, irrevocable and unconditional guarantee of payments of Distributions and
other amounts due on the Trust Preferred Securities. No single document standing
alone or operating in conjunction with fewer than all of the other documents
constitutes such guarantee. It is only the combined operation of these documents
that has the effect of providing a full, irrevocable and unconditional guarantee
of the Trust's obligations under the Trust Preferred Securities. If and to the
extent that the Corporation does not make the required payments on the Junior
Subordinated Debentures, the Trust will not have sufficient funds to make the
related payments, including Distributions, on the Trust Preferred Securities.
The Guarantee will not cover any such payment when the Trust does not have
sufficient funds on hand legally available therefor. In such event, the remedy
of a holder of Trust Preferred Securities is to institute a Direct Action. The
obligations of the Corporation under the Guarantee will be subordinate and
junior in right of payment to all Senior and Subordinated Indebtedness.
 
SUFFICIENCY OF PAYMENTS
 
    As long as payments of interest and other payments are made when due on the
Junior Subordinated Debentures, such payments will be sufficient to cover
Distributions and other payments due on the Trust Preferred Securities,
primarily because: (i) the aggregate principal amount of the Junior Subordinated
Debentures will be equal to the sum of the aggregate Liquidation Amount of the
Trust Securities; (ii) the interest rate and interest and other payment dates on
the Junior Subordinated Debentures will match the Distribution rate and
Distribution and other payment dates for the Trust Securities; (iii) the
Corporation, as Sponsor, shall pay for all and any costs, expenses and
liabilities of the Trust except the Trust's obligations to holders of Trust
Securities under such Trust Securities; and (iv) the Trust Agreement will
provide that the Trust is not authorized to engage in any activity that is not
consistent with the limited purposes thereof.
 
ENFORCEMENT RIGHTS OF HOLDERS OF TRUST PREFERRED SECURITIES
 
    A holder of any Trust Preferred Security may institute a legal proceeding
directly against the Corporation to enforce its rights under the Guarantee
without first instituting a legal proceeding against the Guarantee Trustee, the
Trust or any other person or entity.
 
    A default or event of default under any Senior and Subordinated Indebtedness
would not constitute a default or Event of Default under the Trust Agreement.
However, in the event of payment defaults under, or acceleration of, Senior
Indebtedness, the subordination provisions of the Indenture will provide that no
payments may be made in respect of the Junior Subordinated Debentures until such
Senior and Subordinated Indebtedness has been paid in full or any payment
default thereunder has been cured or waived. Failure to make required payments
on Junior Subordinated Debentures would constitute an Event of Default under the
Trust Agreement.
 
LIMITED PURPOSE OF THE TRUST
 
    The Trust Preferred Securities will represent beneficial interests in the
Trust, and the Trust exists for the sole purpose of issuing and selling the
Trust Securities, using the proceeds from the sale of the Trust Securities to
acquire the Junior Subordinated Debentures and engaging in only those other
activities necessary, advisable or incidental thereto. A principal difference
between the rights of a holder of a Trust
 
                                       58
<PAGE>
Preferred Security and a holder of a Junior Subordinated Debenture is that a
holder of a Junior Subordinated Debenture will be entitled to receive from the
Corporation the principal amount of and interest on Junior Subordinated
Debentures held, while a holder of Trust Preferred Securities is entitled to
receive Distributions from the Trust (or, in certain circumstances, from the
Corporation under the Guarantee) if and to the extent the Trust has funds on
hand legally available for the payment of such Distributions.
 
RIGHTS UPON TERMINATION
 
    Unless the Junior Subordinated Debentures are distributed to holders of the
Trust Securities, upon any voluntary or involuntary termination, winding-up or
liquidation of the Trust, after satisfaction of the liabilities of creditors of
the Trust as required by applicable law, the holders of the Trust Preferred
Securities will be entitled to receive, out of assets held by the Trust, the
Liquidation Distribution in cash. See "Description of Trust Preferred
Securities--Liquidation Distribution Upon Termination." Upon any voluntary or
involuntary liquidation or bankruptcy of the Corporation, the Property Trustee,
as holder of the Junior Subordinated Debentures, would be a subordinated
creditor of the Corporation, subordinated in right of payment to all Senior and
Subordinated Indebtedness as set forth in the Indenture, but entitled to receive
payment in full of principal and interest, before any stockholders of the
Corporation receive payments or distributions. Since the Corporation will be the
guarantor under the Guarantee and will agree to pay for all costs, expenses and
liabilities of the Trust (other than the Trust's obligations to the holders of
its Trust Securities), the positions of a holder of Trust Preferred Securities
and a holder of Junior Subordinated Debentures relative to other creditors and
to stockholders of the Corporation in the event of liquidation or bankruptcy of
the Corporation are expected to be substantially the same.
 
                                       59
<PAGE>
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
GENERAL
 
    In the opinion of Elias, Matz, Tiernan & Herrick L.L.P., special federal
income tax counsel to the Corporation and the Trust ("Tax Counsel"), the
following is a summary of certain of the material United States federal income
tax consequences of the purchase, ownership and disposition of Trust Preferred
Securities held as capital assets by a holder who purchases such Trust Preferred
Securities upon initial issuance. It does not deal with special classes of
holders such as banks, thrifts, real estate investment trusts, regulated
investment companies, insurance companies, dealers in securities or currencies,
tax-exempt investors, United States Alien Holders (as defined below) engaged in
a U.S. trade or business or persons that will hold the Trust Preferred
Securities as a position in a "straddle," as part of a "synthetic security" or
"hedge," as part of a "conversion transaction" or other integrated investment,
or as other than a capital asset. This summary also does not address the tax
consequences to persons that have a functional currency other than the U.S.
dollar or the tax consequences to shareholders, partners or beneficiaries of a
holder of Trust Preferred Securities. Further, it does not include any
description of any alternative minimum tax consequences or the tax laws of any
state or local government or of any foreign government that may be applicable to
the Trust Preferred Securities. This summary is based on the Internal Revenue
Code of 1986, as amended ("Code"). Treasury regulations thereunder and the
administrative and judicial interpretations thereof, as of the date hereof, all
of which are subject to change, possibly on a retroactive basis. An opinion of
Tax Counsel is not binding on the Internal Revenue Service ("IRS") or the
courts. No rulings have been or are expected to be sought from the IRS with
respect to any of the transactions described herein and no assurance can be
given that the IRS will not take contrary positions. Moreover, no assurance can
be given that the opinions expressed herein will not be challenged by the IRS
or, if challenged, that such a challenge would not be successful.
 
    THE UNITED STATES FEDERAL INCOME TAX DISCUSSION SET FORTH BELOW IS INCLUDED
FOR GENERAL INFORMATION ONLY AND MAY NOT BE APPLICABLE DEPENDING UPON A HOLDER'S
PARTICULAR SITUATION. HOLDERS SHOULD CONSULT THEIR TAX ADVISORS WITH RESPECT TO
THE TAX CONSEQUENCES TO THEM OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF THE
TRUST PREFERRED SECURITIES, INCLUDING THE TAX CONSEQUENCES UNDER STATE, LOCAL,
FOREIGN AND OTHER TAX LAWS AND THE POSSIBLE EFFECTS OF CHANGES IN UNITED STATES
FEDERAL OR OTHER TAX LAWS.
 
CLASSIFICATION OF THE JUNIOR SUBORDINATED DEBENTURES
 
    In connection with the issuance of the Junior Subordinated Debentures, Tax
Counsel will render its opinion generally to the effect that, under then current
law and assuming full compliance with the terms of the Indenture (and certain
other documents), and based on certain facts and assumptions contained in such
opinion, the Junior Subordinated Debentures will be classified for United States
federal income tax purposes as indebtedness of the Corporation. The Corporation,
the Trust and the holders of the Trust Preferred Securities (by acceptance of a
beneficial interest in a Trust Preferred Security) will agree to treat the
Junior Subordinated Debentures as indebtedness of the Corporation for all United
States federal income tax purposes.
 
CLASSIFICATION OF THE TRUST
 
    In connection with the issuance of the Trust Preferred Securities, Tax
Counsel will render its opinion generally to the effect that, under then current
law and assuming full compliance with the terms of the Trust Agreement and the
Indenture (and certain other documents), and based on certain facts and
assumptions contained in such opinion, the Trust will be classified for United
States federal income tax purposes as a grantor trust and not as an association
taxable as a corporation. Accordingly, for United States federal income tax
purposes, each holder of Trust Preferred Securities generally will be considered
the owner of an undivided interest in the Junior Subordinated Debentures, and
each holder will be
 
                                       60
<PAGE>
required to include in its gross income any interest (or OID accrued) with
respect to its allocable share of those Junior Subordinated Debentures.
 
INTEREST INCOME AND ORIGINAL ISSUE DISCOUNT
 
    Under recently issued Treasury regulations (the "Regulations") applicable to
debt instruments issued on or after August 13, 1996, a "remote" contingency that
stated interest will not be timely paid will be ignored in determining whether a
debt instrument is issued with OID. The Corporation believes that the likelihood
of its exercising its option to defer payments of interest is "remote" since
exercising that option would, among other things, prevent the Corporation from
declaring dividends on any class of its equity securities. Accordingly, the
Corporation intends to take the position, based on the advice of Tax Counsel,
that the Junior Subordinated Debentures will not be considered to be issued with
OID and, accordingly, stated interest on the Junior Subordinated Debentures
generally will be taxable to a holder as ordinary income at the time it is paid
or accrued in accordance with such holder's method of tax accounting.
 
    Under the Regulations, if the Corporation were to exercise its option to
defer payments of interest, the Junior Subordinated Debentures would at that
time be treated as issued with OID, and all stated interest on the Junior
Subordinated Debentures would thereafter be treated as OID as long as the Junior
Subordinated Debentures remain outstanding. In such event, all of a holder's
taxable interest income with respect to the Junior Subordinated Debentures would
thereafter be accounted for on an economic accrual basis regardless of such
holder's method of tax accounting, and actual distributions of stated interest
would not be reported as taxable income. Consequently, a holder of Trust
Preferred Securities would be required to include in gross income OID even
though the Corporation would not make actual cash payments during an Extension
Period. Moreover, under the Regulations, if the option to defer the payment of
interest was determined not to be "remote," the Junior Subordinated Debentures
would be treated as having been originally issued with OID. In such event, all
of a holder's taxable interest income with respect to the Junior Subordinated
Debentures would be accounted for on an economic accrual basis regardless of
such holder's method of tax accounting, and actual distributions of stated
interest would not be reported as taxable income.
 
    The Regulations have not yet been addressed in any rulings or other
interpretations by the IRS, and it is possible that the IRS could take a
position contrary to the interpretation described herein.
 
    Because income on the Trust Preferred Securities will constitute interest or
OID, corporate holders of the Trust Preferred Securities will not be entitled to
a dividends-received deduction with respect to any income recognized with
respect to the Trust Preferred Securities.
 
RECEIPT OF JUNIOR SUBORDINATED DEBENTURES OR CASH UPON LIQUIDATION OF THE TRUST
 
    The Corporation will have the right at any time to liquidate the Trust and
cause the Junior Subordinated Debentures to be distributed to the holders of the
Trust Securities. Such a distribution, for United States federal income tax
purposes, would be treated as a nontaxable event to each holder, and each holder
would receive an aggregate tax basis in the Junior Subordinated Debentures equal
to such holder's aggregate tax basis in its Trust Preferred Securities. A
holder's holding period in the Junior Subordinated Debentures so received in
liquidation of the Trust would include the period during which the Trust
Preferred Securities were held by such holder.
 
    Under certain circumstances described herein (see "Description of Trust
Preferred Securities"), the Junior Subordinated Debentures may be redeemed for
cash and the proceeds of such redemption distributed to holders in redemption of
their Trust Preferred Securities. Such a redemption would, for United States
federal income tax purposes, constitute a taxable disposition of the redeemed
Trust Preferred Securities, and a holder could recognize gain or loss as if it
sold such redeemed Trust Preferred Securities for cash. See "--Sales of Trust
Preferred Securities."
 
                                       61
<PAGE>
SALES OF TRUST PREFERRED SECURITIES
 
    A holder that sells Trust Preferred Securities (including a redemption of
the Trust Preferred Securities by the Corporation) will recognize gain or loss
equal to the difference between its adjusted tax basis in the Trust Preferred
Securities and the amount realized on the sale of such Trust Preferred
Securities (other than with respect to accrued and unpaid interest which has not
yet been included in income, which will be treated as ordinary income). A
holder's adjusted tax basis in the Trust Preferred Securities generally will be
its initial purchase price increased by OID (if any) previously includable in
such holder's gross income to the date of disposition and decreased by payments
(if any) received on the Trust Preferred Securities in respect of OID. Such gain
or loss generally will be a capital gain or loss and generally will be a
long-term capital gain or loss if the Trust Preferred Securities have been held
for more than one year.
 
    The Trust Preferred Securities may trade at a price that does not accurately
reflect the value of accrued but unpaid interest with respect to the underlying
Junior Subordinated Debentures. A holder who uses the accrual method of
accounting for tax purposes (and a cash method holder, if the Junior
Subordinated Debenture are deemed to have been issued with OID) who disposes of
his Trust Preferred Securities between record dates for payments of
distributions thereon will be required to include accrued but unpaid interest on
the Junior Subordinated Debentures through the date of disposition in income as
ordinary income (i.e., interest or, if applicable, OID), and to add such amount
to his adjusted tax basis in his pro rata share of the underlying Junior
Subordinated Debentures deemed disposed of. To the extent the selling price is
less than the holder's adjusted tax basis (which will include all accrued but
unpaid interest) a holder will recognize a capital loss. Subject to certain
limited exceptions, capital losses cannot be applied to offset ordinary income
for United States federal income tax purposes.
 
PROPOSED TAX LEGISLATION
 
    On February 6, 1997, as part of President Clinton's Fiscal 1998 Budget
Proposal, the United States Treasury Department proposed legislation that would,
among other things, deny an issuer a deduction for United States federal income
tax purposes for the payment of interest on instruments with characteristics
similar to the Junior Subordinated Debentures. If the proposed legislation were
enacted in its current form, it is not expected to apply to the Junior
Subordinated Debentures since the proposed effective date for this provision is
the date of first committee action. There can be no assurances, however, that
the proposed legislation, if enacted, or similar legislation enacted after the
date hereof would not adversely affect the tax treatment of the Junior
Subordinated Debentures, resulting in a Tax Event. The occurrence of a Tax Event
may result in the redemption of the Junior Subordinated Debentures for cash, in
which event the holders of the Trust Preferred Securities would receive cash in
redemption of their Trust Preferred Securities. See "Description of Trust
Preferred Securities--Redemption" and "Description of Junior Subordinated
Debentures."
 
UNITED STATES ALIEN HOLDERS
 
    For purposes of this discussion, a "United States Alien Holder" is any
corporation, individual, partnership, estate or trust that is not a U.S. Holder
for United States federal income tax purposes.
 
    A "U.S. Holder" is a holder of Trust Preferred Securities who or which is
(i) a citizen or individual resident (or is treated as a citizen or individual
resident) of the United States for federal income tax purposes, (ii) a
corporation or partnership created or organized in or under the laws of the
United States or any political subdivision thereof, (iii) an estate the income
of which is includable in its gross income for federal income tax purposes
without regard to its source or (iv) a trust over which (A) a court within the
United States is able to exercise primary supervision over the administration of
the trust and (B) one or more United States trustees have the authority to
control all substantial decisions of the trust.
 
    Under present United States federal income tax laws: (i) payments by the
Trust or any of its paying agents to any holder of a Trust Preferred Security
who or which is a United States Alien Holder will not be
 
                                       62
<PAGE>
subject to United States federal withholding tax; provided that, (a) the
beneficial owner of the Trust Preferred Security does not actually or
constructively own 10 percent or more of the total combined voting power of all
classes of stock of the Corporation entitled to vote, (b) the beneficial owner
of the Trust Preferred Security is not a controlled foreign corporation that is
related to the Corporation through stock ownership, and (c) either (A) the
beneficial owner of the Trust Preferred Security certifies to the Trust or its
agent, under penalties of perjury, that it is not a United States holder and
provides its name and address or (B) a securities clearing organization, bank or
other financial institution that holds customers' securities in the ordinary
course of its trade or business (a "Financial Institution"), and holds the Trust
Preferred Security in such capacity, certifies to the Trust or its agent, under
penalties of perjury, that such statement has been received from the beneficial
owner by it or by a Financial Institution between it and the beneficial owner
and furnishes the Trust or its agent with a copy thereof; and (ii) a United
States Alien Holder of a Trust Preferred Security will not be subject to United
States federal withholding tax on any gain realized upon the sale or other
disposition of a Trust Preferred Security.
 
    As discussed above, changes in legislation affecting the United States
federal income tax treatment of the Junior Subordinated Debentures are possible,
and could adversely affect the ability of the Corporation to deduct the interest
payable on the Junior Subordinated Debentures. Moreover, any such legislation
could adversely affect United States Alien Holders by characterizing income
derived from the Junior Subordinated Debentures as dividends, generally subject
to a 30% income tax (on a withholding basis) when paid to a United States Alien
Holder, rather than as interest which, as discussed above, is generally exempt
from income tax in the hands of a United States Alien Holder.
 
INFORMATION REPORTING TO HOLDERS
 
    Generally, income on the Trust Preferred Securities will be reported to
holders on Forms 1099, which forms should be mailed to holders of Trust
Preferred Securities by January 31 following each calendar year.
 
BACKUP WITHHOLDING
 
    Payments made on, and proceeds from the sale of, the Trust Preferred
Securities may be subject to a "backup" withholding tax of 31 percent unless the
holder complies with certain identification requirements. Any withheld amounts
will be allowed as a credit against the holder's United States federal income
tax, provided the required information is provided to the IRS.
 
                                       63
<PAGE>
                              ERISA CONSIDERATIONS
 
    Each of the Corporation (the obligor with respect to the Junior Subordinated
Debentures held by the Trust), and its affiliates and the Property Trustee may
be considered a "party in interest" (within the meaning of ERISA) or a
"disqualified person" (within the meaning of Section 4975 of the Code) with
respect to many Plans that are subject to ERISA and certain employee
benefit-related provisions of the Code. The purchase and/or holding of Trust
Preferred Securities by a Plan that is subject to the fiduciary responsibility
provisions of ERISA or the prohibited transaction provisions of Section 4975 of
the Code (including individual retirement arrangements and other plans described
in Section 4975(e)(1) of the Code) and with respect to which the Corporation,
the Property Trustee or any affiliate is a service provider (or otherwise is a
party in interest or a disqualified person) may constitute or result in a
prohibited transaction under ERISA or Section 4975 of the Code, unless such
Trust Preferred Securities are acquired pursuant to and in accordance with an
applicable exemption, such as Prohibited Transaction Class Exemption ("PTCE")
84-14 (an exemption for certain transactions determined by an independent
qualified professional asset manager), PTCE 91-38 (an exemption for certain
transactions involving bank collective investment funds), PTCE 90-1 (an
exemption for certain transactions involving insurance company pooled separate
accounts), PTCE 95-60 (an exemption for transactions involving certain insurance
company general accounts) or PTCE 96-23 (an exemption for certain transactions
determined by an in-house asset manager). In addition, a Plan fiduciary
considering the purchase of Trust Preferred Securities should be aware that the
assets of the Trust may be considered "plan assets" for ERISA purposes. In such
event, any persons exercising discretion with respect to the Junior Subordinated
Debentures may become fiduciary parties in interest or disqualified persons with
respect to investing Plans. In order to avoid certain prohibited transactions
under ERISA and the Code that could thereby result, each investing Plan, by
purchasing the Trust Preferred Securities, will be deemed to have directed the
Trust to invest in the Junior Subordinated Debentures and to have consented to
the appointment of the Property Trustee. In this regard, it should be noted
that, in an Event of Default, the Corporation may not remove the Property
Trustee without the approval of a majority of the holders of the Trust Preferred
Securities. Further, prior to an Event of Default with respect to the Junior
Subordinated Debentures, the Property Trustee will have only limited custodial
and ministerial authority with respect to Trust assets.
 
    A Plan fiduciary should consider whether the purchase of Trust Preferred
Securities could result in a delegation of fiduciary authority to the Property
Trustee, and, if so, whether such a delegation of authority is permissible under
the Plan's governing instrument or any investment management agreement with the
Plan. In making such determination, a Plan fiduciary should note that the
Property Trustee is a U.S. bank qualified to be an investment manager (within
the meaning of Section 3(38) of ERISA) for the purposes of delegation of
authority under ERISA.
 
    THE SALE OF INVESTMENTS TO PLANS IS IN NO RESPECT A REPRESENTATION BY THE
TRUST, THE CORPORATION, THE PROPERTY TRUSTEE, THE UNDERWRITERS OR ANY OTHER
PERSON ASSOCIATED WITH THE SALE OF THE TRUST PREFERRED SECURITIES THAT SUCH
SECURITIES MEET ALL RELEVANT LEGAL REQUIREMENTS WITH RESPECT TO INVESTMENTS BY
PLANS GENERALLY OR ANY PARTICULAR PLAN, OR THAT SUCH SECURITIES ARE OTHERWISE
APPROPRIATE FOR PLANS GENERALLY OR ANY PARTICULAR PLAN. ANY PURCHASER PROPOSING
TO ACQUIRE TRUST PREFERRED SECURITIES WITH ASSETS OF ANY PLAN SHOULD CONSULT
WITH ITS COUNSEL.
 
                                       64
<PAGE>
                                  UNDERWRITING
 
    Legg Mason Wood Walker, Incorporated and Piper Jaffray Inc. (the
"Underwriters"), have agreed, subject to the terms and conditions of an
Underwriting Agreement to be entered into by the Underwriters, the Corporation
and the Trust that the Corporation and the Trust will sell to the Underwriters,
and the Underwriters, severally and not jointly, will purchase from the Trust,
the number of Trust Preferred Securities set forth below opposite their
respective names.
 
<TABLE>
<CAPTION>
                                                                                                       NUMBER OF
                                                                                                         TRUST
                                                                                                       PREFERRED
                                         NAME OF UNDERWRITER                                           SECURITIES
- -----------------------------------------------------------------------------------------------------  ----------
<S>                                                                                                    <C>
Legg Mason Wood Walker, Incorporated.................................................................     500,000
Piper Jaffray Inc....................................................................................     500,000
        Total........................................................................................   1,000,000
                                                                                                       ----------
</TABLE>
 
    The Underwriters have committed to purchase and pay for all such Trust
Preferred Securities if any are purchased. The Underwriting Agreement provides
that, if an Underwriter defaults, the purchase commitments of the non-defaulting
Underwriter may be increased or the Underwriting Agreement terminated.
 
    The Underwriters have advised the Corporation and the Trust that they
propose to offer the Trust Preferred Securities directly to the public initially
at the public offering price set forth on the cover page of this Prospectus and
to certain dealers at such price less a concession not in excess of $0.50 per
Trust Preferred Security. The Underwriters may allow and such dealers may
reallow a concession not in excess of $0.25 per Trust Preferred Security to
certain other brokers and dealers. After the public offering, the public
offering price, concession and reallowance, and other selling terms may be
changed by the Underwriters.
 
    In view of the fact that the proceeds from the sale of the Trust Preferred
Securities will be used to purchase the Junior Subordinated Debentures issued by
the Corporation, the Underwriting Agreement provides that the Corporation will
pay as compensation for the Underwriters' arranging the investment therein of
such proceeds an amount of $0.94 per Trust Preferred Security.
 
    The Trust has granted to the Underwriters an option, exercisable for 30 days
from the date of this Prospectus, to purchase up to an additional 150,000 Trust
Preferred Securities at the public offering price set forth on the cover page
hereof less underwriting discounts. The Underwriters may exercise such option to
purchase additional Trust Preferred Securities solely for the purpose of
covering over-allotments, if any, incurred in the sale of the Trust Preferred
Securities.
 
    To the extent that the Underwriters exercise their option to purchase
additional Trust Preferred Securities, the Trust will issue and sell to the
Corporation additional Common Securities and the Corporation will issue and sell
to the Trust Junior Subordinated Debentures in an aggregate principal amount
equal to the total aggregate Liquidation Amount of the additional Trust
Preferred Securities being purchased pursuant to the option and the additional
Common Securities.
 
    The Corporation and the Trust have agreed in the Underwriting Agreement
that, subject to certain conditions, prior to 90 days following the Issue Date,
neither will, directly or indirectly, issue, sell, offer or agree to sell, grant
any option for the sale of, or otherwise dispose of, Trust Preferred Securities,
any securities convertible into, exchangeable or exerciseable for Trust
Preferred Securities or the Junior Subordinated Debentures or any debt
securities substantially similar to the Junior Subordinated Debentures or any
equity security substantially similar to the Trust Preferred Securities, except
with the prior written consent of Legg Mason Wood Walker, Incorporated, and
except for any disposal of Junior Subordinated Debentures following a
liquidation of the Trust.
 
                                       65
<PAGE>
    Each of the Corporation and the Trust has agreed to indemnify the
Underwriters and their controlling persons against certain liabilities,
including liabilities under the Securities Act of 1933, as amended, or to
contribute to payments the Underwriters may be required to be made in respect
thereof.
 
    The Underwriters have advised the Trust that they do not intend to confirm
sales to any account over which they exercise discretionary authority in excess
of 5% of the number of Trust Preferred Securities offered hereby.
 
    In connection with this offering, the Underwriters may engage in
transactions that stabilize, maintain or otherwise affect the price of the Trust
Preferred Securities. Specifically, the Underwriters may overallot the offering,
creating a syndicate short position. In addition, the Underwriters may bid for
and purchase Trust Preferred Securities in the open market to stabilize the
price of the Trust Preferred Securities. These activities may stabilize or
maintain the market price of the Trust Preferred Securities above independent
market levels. The Underwriters are not required to engage in these activities,
and may end these activities at any time.
 
                                 LEGAL MATTERS
 
    Certain legal matters will be passed upon for the Corporation by Elias,
Matz, Tiernan & Herrick L.L.P., Washington, D.C., and for the Underwriters by
Skadden, Arps, Slate, Meagher & Flom LLP. Certain matters of Delaware law
relating to the validity of the Trust Preferred Securities will be passed upon
on behalf of the Trust by Skadden, Arps, Slate, Meagher & Flom LLP, special
Delaware counsel to the Trust. Certain matters relating to United States federal
income tax considerations will be passed upon for the Corporation by Elias,
Matz, Tiernan & Herrick L.L.P., Washington, D.C.
 
                         INDEPENDENT PUBLIC ACCOUNTANTS
 
    The consolidated financial statements of Independent Bank Corp. and
subsidiary incorporated by reference in the Corporation's Annual Report on Form
10-K for the year ended December 31, 1996 and incorporated by reference in this
Prospectus have been audited by Arthur Andersen LLP, independent public
accountants, as stated in their report appearing therein.
 
                                       66
<PAGE>
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- --------------------------------------------------------------------------------
 
    NO DEALER, SALESPERSON OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS IN CONNECTION WITH THE OFFER MADE
BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS
MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE CORPORATION, THE TRUST
OR THE UNDERWRITERS. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE
HEREUNDER SHALL UNDER ANY CIRCUMSTANCES CREATE AN IMPLICATION THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF THE CORPORATION OR THE TRUST SINCE THE DATE
HEREOF. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER OR SOLICITATION BY ANYONE
IN ANY JURISDICTION IN WHICH SUCH OFFER OR SOLICITATION IS NOT AUTHORIZED OR IN
WHICH THE PERSON MAKING SUCH OFFER OR SOLICITATION IS NOT QUALIFIED TO DO SO OR
TO ANYONE TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR SOLICITATION.
 
                           --------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                   PAGE
                                                 ---------
<S>                                              <C>
Available Information..........................          4
Incorporation of Certain Documents by
  Reference....................................          4
Summary........................................          5
Risk Factors...................................         10
Independent Bank Corp..........................         16
Use of Proceeds................................         17
Ratios of Earnings to Fixed Charges............         17
Capitalization.................................         18
Accounting Treatment...........................         19
Recent Developments............................         20
Selected Consolidated Financial Data...........         22
Management of Independent and the Bank.........         23
Independent Capital Trust I....................         26
Description of Trust Preferred Securities......         27
Description of Junior Subordinated
  Debentures...................................         41
Description of Guarantee.......................         53
Book-Entry Issuance............................         55
Relationship Among the Trust Preferred
  Securities, the Junior Subordinated
  Debentures and the Guarantee.................         58
Certain Federal Income Tax Consequences........         60
ERISA Considerations...........................         64
Underwriting...................................         65
Legal Matters..................................         66
Independent Public Accountants.................         66
</TABLE>
 
                           --------------------------
 
    UNTIL JUNE 8, 1997 (25 DAYS AFTER THE DATE OF THIS PROSPECTUS), ALL DEALERS
EFFECTING TRANSACTIONS IN THE REGISTERED SECURITIES, WHETHER OR NOT
PARTICIPATING IN THIS DISTRIBUTION, MAY BE REQUIRED TO DELIVER A PROSPECTUS.
THIS IS IN ADDITION TO THE OBLIGATION OF DEALERS TO DELIVER A PROSPECTUS WHEN
ACTING AS UNDERWRITERS AND WITH RESPECT TO THEIR UNSOLD ALLOTMENTS OR
SUBSCRIPTIONS.
 
                           1,000,000 TRUST PREFERRED
                                   SECURITIES
 
                              INDEPENDENT CAPITAL
                                    TRUST I
 
                  9.28% CUMULATIVE TRUST PREFERRED SECURITIES
                     FULLY AND UNCONDITIONALLY GUARANTEED,
                            AS DESCRIBED HEREIN, BY
 
                                     [LOGO]
 
                             ---------------------
 
                                   PROSPECTUS
 
                             ---------------------
 
                             LEGG MASON WOOD WALKER
                                  INCORPORATED
 
                               PIPER JAFFRAY INC.
 
                                  MAY 14, 1997
 
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