TRENWICK GROUP INC
8-A12G, 1997-09-24
FIRE, MARINE & CASUALTY INSURANCE
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                    FORM 8-A

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

                               TRENWICK GROUP INC
             ------------------------------------------------------
             (Exact Name of Registrant as Specified in Its Charter)


          Delaware                                              06-1152790
- ----------------------------------------                       -------------
(State of Incorporation or Organization)                       (IRS Employer
                                                             Identification No.)

Metro Center, One Station Place, Stamford, Connecticut             06902
- ------------------------------------------------------           ---------
    (Address of Principal Executive Offices)                     (Zip Code)

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

     If this form relates to the registration of a class of securities pursuant
to Section 12(g) of the Exchange Act and is effective pursuant to General
Instruction A.(d), check the following box.                                 /X/

     Securities Act registration statement to which this form relates (if
applicable).

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

          Title of each class                   Name of each exchange
          to be so registered                   on which each class is
                                                   to be registered
                 None

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

                         Preferred Stock Purchase Rights

                                (Title of Class)
<PAGE>   2
ITEM 1.   DESCRIPTION OF SECURITIES TO BE REGISTERED.

      The Board of Directors of Trenwick Group Inc. (the "Company") has 
declared a dividend distribution of one Right for each outstanding
share of Common Stock to shareholders of record at the close of business on
September 24, 1997 (the "Record Date"). Each Right entitles the registered
holder to purchase from the Company one two-hundredths of a share of Series B
Junior Participating Preferred Stock, par value $.10 per share (the "Preferred
Stock"), at a Purchase Price of $125, subject to adjustment. The description
and terms of the Rights are set forth in a Rights Agreement (the "Rights
Agreement") between the Company and First Chicago Trust Company of New York,
as Rights Agent.

      Initially, the Rights will be attached to all Common Stock certificates
representing shares then outstanding, and no separate Rights Certificates will
be distributed. The Rights will separate from the Common Stock and a
Distribution Date will occur upon the earlier of (i) ten (10) days following a
public announcement that a person or group of affiliated or associated persons
(an "Acquiring Person") has acquired, or obtained the right to acquire,
beneficial ownership of fifteen percent (15%) or more of the outstanding shares
of Common Stock (the "Stock Acquisition Date"), other than as a result of
repurchases of stock by the Company or certain inadvertent actions by
institutional or certain other shareholders, or (ii) the commencement of a
tender offer or exchange offer that would result in a person or group
beneficially owning fifteen percent (15%) or more of such outstanding shares of
Common Stock. Until the Distribution Date, (i) the Rights will be evidenced by
the Common Stock certificates and will be transferred with and only with such
Common Stock certificates, (ii) new Common Stock certificates issued after the
Record Date will contain a notation incorporating the Rights Agreement by
reference and (iii) the surrender for transfer of any certificates for Common
Stock outstanding will also constitute the transfer of the Rights associated
with the Common Stock represented by such certificate. Pursuant to the Rights
Agreement, the Company reserves the right to require prior to the occurrence of
a Triggering Event (as defined below) that, upon any exercise of Rights, a
number of Rights be exercised so that only whole shares of Preferred Stock will
be issued.

      The Rights are not exercisable until the Distribution Date and will expire
at the close of business on September 23, 2007, unless earlier redeemed or
exchanged by the Company as described below.

      As soon as practicable after the Distribution Date, Rights Certificates
will be mailed to holders of record of the Common Stock as of the close of
business on the Distribution Date and, thereafter, the separate Rights
Certificates alone will represent the Rights. Except as otherwise determined by
the Board, only shares of Common Stock issued prior to the Distribution Date
will be issued with Rights.


                                      - 2 -
<PAGE>   3
      In the event that a Person becomes an Acquiring Person (except pursuant to
an offer for all outstanding shares of Common Stock that the independent
directors determine (i) not to be inadequate and (ii) to otherwise be in the
best interests of the Company and its shareholders), each holder of a Right will
thereafter have the right to receive, upon exercise, Common Stock (or, in
certain circumstances, cash, property or other securities of the Company) having
a value equal to two times the exercise price of the Right. Notwithstanding any
of the foregoing, following the occurrence of the event set forth in this
paragraph, all Rights that are, or (under certain circumstances specified in the
Rights Agreement) were, beneficially owned by any Acquiring Person will be null
and void.

      For example, at an exercise price of $125 per Right, each Right not owned
by an Acquiring Person (or by certain related parties) following an event set
forth in the preceding paragraph would entitle its holder to purchase $250 worth
of Common Stock (or other consideration, as noted above) for $125. Assuming that
the Common Stock had a per share value of $36.50 at such time, the holder of 
each valid Right would be entitled to purchase approximately 6.8 shares of 
Common Stock for $125.

      In the event that, at any time following the Stock Acquisition Date, (i)
the Company is acquired in a merger or other business combination transaction
(other than a merger which follows an offer described in the second preceding
paragraph), or (ii) fifty percent (50%) or more of the Company's assets or
earning power is sold or transferred, each holder of a Right (except Rights
which previously have been voided as set forth above) shall thereafter have the
right to receive, upon exercise, common stock of the acquiring company having a
value equal to two times the exercise price of the Right. The events set forth
in this paragraph and in the second preceding paragraph are referred to as the
"Triggering Events."

      At any time until the Stock Acquisition Date, the Company may redeem the
Rights in whole, but not in part, at a price of $.01 per Right (payable in cash,
Common Stock or other consideration deemed appropriate by the Board).
Immediately upon the action of the Board ordering redemption of the Rights, the
Rights will terminate and the only right of the holders of Rights will be to
receive the $.01 redemption price. The foregoing notwithstanding, the Rights
generally may not be redeemed for one hundred eighty (180) days following a
change in a majority of the Board as a result of a proxy contest.

      At any time after the acquisition by a person or group of affiliated or
associated persons of beneficial ownership of 15% or more of the outstanding
shares and prior to the acquisition by such person or group of 50% or more of
the outstanding shares of Common Stock, the Board of Directors may exchange the
Rights (other than Rights owned by such person or group which have become void),
in whole or in part, at an exchange ratio of one share of Common Stock, or one
two-hundredths of a share of Preferred Stock (or of a share of a class or series
of the Company's preferred stock


                                      - 3 -
<PAGE>   4
having equivalent rights, preferences and privileges), per Right (subject to
adjustment).

      Until a Right is exercised, the holder thereof, as such, will have no
rights as a shareholder of the Company, including, without limitation, the right
to vote or to receive dividends. While the distribution of the Rights will not
be taxable to shareholders or to the Company, shareholders may, depending upon
the circumstances, recognize taxable income in the event that the Rights become
exercisable for Common Stock (or other consideration) of the Company or for
common stock of the acquiring company as set forth above.

      Any of the provisions of the Rights Agreement may be amended by the Board
prior to the Distribution Date. After the Distribution Date, the provisions of
the Rights Agreement may be amended by the Board in order to cure any ambiguity,
to make changes which do not adversely affect the interests of holders of
Rights, or to shorten or lengthen any time period under the Rights Agreement;
provided, however, that no amendment may be made at such time as the Rights are
not redeemable.

      As of September 19, 1997, there were 11,951,060 shares of Common Stock of
the Company outstanding. As of September 19, 1997, options to purchase 911,195
shares of Common Stock were outstanding. Each share of Common Stock of the
Company outstanding at the close of business on September 24, 1997 will receive
one Right. So long as the Rights are attached to the Common Stock, one
additional Right (as such number may be adjusted pursuant to the provisions of
the Rights Agreement) shall be deemed to be delivered for each share of Common
Stock issued or transferred by the Company in the future. In addition, following
the Distribution Date and prior to the expiration or redemption of the Rights,
the Company may issue Rights when it issues Common Stock only if the Board deems
it to be necessary or appropriate, or in connection with the issuance of shares
of Common Stock pursuant to the exercise of stock options or under employee
plans or upon the exercise, conversion or exchange of certain securities of the
Company. Two hundred thousand shares of Preferred Stock are initially reserved
for issuance upon exercise of the Rights.

      The Rights may have certain anti-takeover effects. The Rights will cause
substantial dilution to a person or group that attempts to acquire the Company
in a manner which causes the Rights to become discount Rights unless the offer
is conditional on a substantial number of Rights being acquired. The Rights,
however, should not affect any prospective offeror willing to make an offer at a
fair price and otherwise in the best interests of the Company and its
shareholders as determined by a majority of the Directors who are not affiliated
with the person making the offer, or willing to negotiate with the Board. The
Rights should not interfere with any merger or other business combination
approved by the Board since the Board may, at its option, at any time until the
Stock Acquisition Date redeem all but not less than all the then outstanding
Rights at the Redemption Price.


                                      - 4 -
<PAGE>   5
      The Rights Agreement, dated as of September 24, 1997, between the Company
and First Chicago Trust Company of New York, as Rights Agent, specifying the
terms of the Rights and including the form of Certificate of Designation,
Preferences and Rights setting forth the terms of the Preferred Stock as an
exhibit thereto, is attached hereto as an exhibit. The foregoing description of
the Rights Agreement does not purport to be complete and is qualified by
reference to the Rights Agreement attached hereto as an exhibit, which is
incorporated herein by reference.

ITEM 2.   EXHIBITS.

      1     Rights Agreement, dated as of September 24, 1997, between Trenwick
            Group Inc. and First Chicago Trust of New York, as Rights Agent,
            including the form of Certificate of Designation, Preferences and
            Rights setting forth the terms of the Series B Junior Participating
            Preferred Stock, par value $.10 per share, as Exhibit A, the form of
            Rights Certificate as Exhibit B and the Summary of Rights to
            Purchase Preferred Stock as Exhibit C. Pursuant to the Rights
            Agreement, printed Rights Certificates will not be mailed until
            after the Distribution Date (as such term is defined in the Rights
            Agreement).


                                      - 5 -
<PAGE>   6
                                    SIGNATURE

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

                                          Trenwick Group Inc.

                                          By:/s/ James F. Billett, Jr.
                                             -----------------------------------
                                             Name:  James F. Billett, Jr.
                                             Title:   Chairman of the Board,
                                                      President and Chief
                                                      Executive Officer

Dated: September 24, 1997


                                     - 6 -

<PAGE>   1
===============================================================================

                              TRENWICK GROUP INC.

                                      and

                    FIRST CHICAGO TRUST COMPANY OF NEW YORK

                                  Rights Agent

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

                                Rights Agreement

                         Dated as of September 24, 1997

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

                               TABLE OF CONTENTS
                               -----------------
SECTION                                                                    PAGE
- -------                                                                    ----
  1.    Certain Definitions...............................................   1
  2.    Appointment of Rights Agent.......................................   5
  3.    Issue of Rights Certificates......................................   5
  4.    Form of Rights Certificates.......................................   7
  5.    Countersignature and Registration.................................   8
  6.    Transfer, Split Up, Combination and
          Exchange of Rights Certificates;
          Mutilated, Destroyed, Lost or
          Stolen Rights Certificates......................................   9
  7.    Exercise of Rights; Purchase
          Price; Expiration Date of Rights................................   9
  8.    Cancellation and Destruction of
          Rights Certificates.............................................  11
  9.    Reservation and Availability of Capital Stock.....................  12
  10.   Preferred Stock Record Date.......................................  13
  11.   Adjustment of Purchase Price,
          Number and Kind of Shares or
          Number of Rights................................................  13
  12.   Certificate of Adjusted Purchase
          Price or Number of Shares.......................................  21
  13.   Consolidation, Merger or Sale
          or Transfer of Assets or Earning
          Power...........................................................  22
  14.   Fractional Rights and Fractional 
          Shares..........................................................  24

  15.   Rights of Action..................................................  25
  16.   Agreement of Rights Holders.......................................  25
  17.   Rights Certificate Holder Not Deemed
          a Stockholder...................................................  26
  18.   Concerning the Rights Agent.......................................  26
  19.   Merger or Consolidation or Change of
          Name of Rights Agent............................................  27
  20.   Duties of Rights Agent............................................  27
  21.   Change of Rights Agent............................................  29
  22.   Issuance of New Rights Certificates...............................  30
  23.   Redemption and Termination........................................  30
  24.   Exchange..........................................................  31
  25.   Notice of Certain Events..........................................  32
  26.   Notices...........................................................  33
  27.   Supplements and Amendments........................................  34
  28.   Successors........................................................  34
  29.   Determinations and Actions
          by the Board of Directors, etc. ................................  34
  30.   Benefits of this Agreement........................................  35
  31.   Severability......................................................  35
  32.   Governing Law.....................................................  35
  33.   Counterparts......................................................  35
  34.   Descriptive Headings..............................................  35
  
  Exhibit A -- Form of Certificate of Designation, Preferences and Rights
  Exhibit B -- Form of Rights Certificate
  Exhibit C -- Summary of Rights of Preferred Stock

                             TABLE OF DEFINED TERMS
                             ----------------------
TERM DEFINED                                                          SECTION
- ------------                                                          -------
1989 Agreement                                                         Intro
1989 Rights                                                            Intro
Acquiring Person                                                        1(a)
Act                                                                     1(b)
Adjustment Shares                                                    11(a)(ii)
Affiliate                                                               1(c)
Agreement                                                              Intro
Associate                                                               1(c)
Beneficial Owner                                                        1(d)
Board                                                                  Intro
Business Day                                                            1(e)
Close of Business                                                       1(f)
Common Stock                                                            1(g)
Common Stock Equivalents                                            11(a)(iii)
Company (Trenwick Group Inc.)                                          Intro
Company (Following a Section 13(a) Event)                              13(a)
Current Market Price of the Common Stock                              11(d)(i)
Current Market Price of the Preferred Stock                          11(d)(ii)
Current Value                                                       11(a)(iii)
Distribution Date                                                       3(a)
Equivalent Preferred Stock                                             11(b)
Exchange Act                                                            1(c)
Exchange Ratio                                                         24(a)
Expiration Date                                                         7(a)
Final Expiration Date                                                   7(a)
NASDAQ                                                               11(d)(i)
Original Rights                                                       1(d)(i)
Person                                                                  1(o)
Preferred Stock                                                         1(p)
Principal Party                                                        13(b)
Purchase Price                                                          4(a)
Purchase Price (after a Section 11(a) Event)                         11(a)(ii)
Purchase Price (after a Section 13 Event)                              13(a)
Record Date                                                            Intro
Redemption Price                                                       23(a)
Rights                                                                 Intro
Rights Agent                                                           Intro
Rights Certificates                                                     3(a)
Rights Dividend Declaration Date                                       Intro
Section 11(a)(ii) Event                                                 1(y)
Section 11(a)(ii) Trigger Date                                      11(a)(iii)
Section 13 Event                                                       1(aa)
Spread                                                              11(a)(iii)
Stock Acquisition Date                                                 1(cc)
Subsidiary                                                             1(dd)
Substitution Period                                                 11(a)(iii)
Summary of Rights                                                       3(b)
Trading Day                                                           11(d)(i)
Triggering Event                                                        1(n)


                                RIGHTS AGREEMENT


            RIGHTS AGREEMENT, dated as of September 24, 1997 (the "Agreement"),
between TRENWICK GROUP INC., a Delaware corporation (the "Company"), and FIRST
CHICAGO TRUST COMPANY OF NEW YORK, a New York corporation (the "Rights Agent").

                             W I T N E S S E T H:

            WHEREAS, on November 2, 1989 the Board of Directors of the Company
(the "Board") authorized the Rights Agreement, dated as of November 2, 1989,
between the Company and First Chicago Trust Company of New York (the "1989
Agreement") and declared a dividend distribution of one right (a "1989 Right")
for each share of common stock, $.10 par value per share, of the Company (the
"Common Stock") outstanding at the close of business on November 20, 1989. Each
1989 Right represents the right to purchase one one-hundredth of a share of
Series A Junior Participating Preferred Stock of the Company;

            WHEREAS, on July 30, 1997 the Board determined it desirable and in
the best interests of the Company and its stockholders for the Company to redeem
the 1989 Rights upon the close of business on September 24, 1997 and adopt a new
rights plan which would provide benefits similar to those afforded by the 1989
Agreement;

            WHEREAS, on July 30, 1997 (the "Rights Dividend Declaration Date"),
the Board authorized and declared a dividend distribution of one Right (as
hereinafter defined) for each share of Common Stock outstanding at the close of
business on September 24, 1997 (the "Record Date") and has authorized the
issuance of one Right (as such number may hereinafter be adjusted pursuant to
the provisions of Section 11(p) hereof) for each share of Common Stock issued
between the Record Date (whether originally issued or delivered from the
Company's treasury) and the Distribution Date (as hereinafter defined), each
Right initially representing the right to purchase one two-hundredths of a share
of Series B Junior Participating Preferred Stock of the Company having the
rights, powers and preferences set forth in the form of Certificate of
Designation, Preferences and Rights attached hereto as Exhibit A, upon the terms
and subject to the conditions hereinafter set forth (the "Rights");

            NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

            Section 1. Certain Definitions. For purposes of this Agreement, the
following terms have the meanings indicated:

            (a) "Acquiring Person" shall mean any Person who or which, together
with all Affiliates and Associates of such Person, shall be the Beneficial Owner
of fifteen percent (15%) or more of the shares of Common Stock then outstanding,
but shall not include (i) the Company, (ii) any Subsidiary of the Company, (iii)
any employee benefit plan of the Company or of any Subsidiary of the Company,
(iv) any Person or entity organized, appointed or established by the


                                      - 1 -
<PAGE>   2
Company for or pursuant to the terms of any such plan, (v) any Person who
becomes the Beneficial Owner of fifteen percent (15%) or more of the shares of
Common Stock then outstanding as a result of a reduction in the number of shares
of Common Stock outstanding due to the repurchase of shares of Common Stock by
the Company unless and until such Person, after becoming aware that such Person
has become the Beneficial Owner of fifteen percent (15%) or more of the then
outstanding shares of Common Stock, acquires beneficial ownership of additional
shares of Common Stock representing one percent (1%) or more of the shares of
Common Stock then outstanding, or (vi) any such Person who has reported or is
required to report such ownership (but less than 20%) on Schedule 13G under the
Exchange Act (or any comparable or successor report) or on Schedule 13D under
the Exchange Act (or any comparable or successor report) which Schedule 13D does
not state any intention to or reserve the right to control or influence the
management or policies of the Company or engage in any of the actions specified
in Item 4 of such Schedule (other than the disposition of the Common Stock) and,
within ten (10) Business Days of being requested by the Company to advise it
regarding the same, certifies to the Company that such Person acquired shares of
Common Stock in excess of 14.9% inadvertently or without knowledge of the terms
of the Rights and who, together with all Affiliates and Associates, thereafter
does not acquire additional shares of Common Stock while the Beneficial Owner of
fifteen percent (15%) or more of the shares of Common Stock then outstanding;
provided, however, that if the Person requested to so certify fails to do so
within ten (10) Business Days, then such Person shall become an Acquiring Person
immediately after such ten (10) Business Day Period.

            (b) "Act" shall mean the Securities Act of 1933.

            (c) "Affiliate" and "Associate" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under
the Exchange Act of 1934, as amended and in effect on the date of this Agreement
(the "Exchange Act").

            (d) A Person shall be deemed the "Beneficial Owner" of and shall be
deemed to "beneficially own," any securities:

                  (i) which such Person or any of such Person's Affiliates or
            Associates, directly or indirectly, has the right to acquire
            (whether such right is exercisable immediately or only after the
            passage of time) pursuant to any agreement, arrangement or
            understanding (whether or not in writing) or upon the exercise of
            conversion rights, exchange rights, rights, warrants or options, or
            otherwise; provided, however, that a Person shall not be deemed the
            "Beneficial Owner" of, or to "beneficially own," (A) securities
            tendered pursuant to a tender or exchange offer made by such Person
            or any of such Person's Affiliates or Associates until such tendered
            securities are accepted for purchase or exchange, or (B) securities
            issuable upon exercise of Rights at any time prior to the occurrence
            of a Triggering Event, or (C) securities issuable upon exercise of
            Rights from and after the occurrence of a Triggering Event which
            Rights were acquired by such Person or any of such Person's
            Affiliates or Associates prior to the Distribution Date or pursuant
            to Section 3(a) or Section 22 hereof (the "Original Rights") or
            pursuant


                                      - 2 -
<PAGE>   3
            to Section 11(i) hereof in connection with an adjustment made with
            respect to any Original Rights;

                  (ii) which such Person or any of such Person's Affiliates or
            Associates, directly or indirectly has the right to vote or dispose
            of or has "beneficial ownership" of (as determined pursuant to Rule
            13d-3 of the General Rules and Regulations under the Exchange Act),
            including pursuant to any agreement, arrangement or understanding,
            whether or not in writing; provided, however, that a Person shall
            not be deemed the "Beneficial Owner" of, or to "beneficially own,"
            any security under this subparagraph (ii) as a result of an
            agreement, arrangement or understanding to vote such security if
            such agreement, arrangement or understanding: (A) arises solely from
            a revocable proxy given in response to a public proxy or consent
            solicitation made pursuant to, and in accordance with, the
            applicable provisions of the General Rules and Regulations under the
            Exchange Act, and (B) is not then reportable by such Person on
            Schedule 13D under the Exchange Act (or any comparable or successor
            report); or

                  (iii) which are beneficially owned, directly or indirectly, by
            any other Person (or any Affiliate or Associate thereof) with which
            such Person (or any of such Person's Affiliates or Associates) has
            any agreement, arrangement or understanding (whether or not in
            writing), for the purpose of acquiring, holding, voting (except
            pursuant to a revocable proxy as described in the proviso to
            subparagraph (ii) of this paragraph (d)) or disposing of any voting
            securities of the Company;

provided, however, that nothing in this paragraph (d) shall cause a person
engaged in business as an underwriter of securities to be the "Beneficial Owner"
of, or to "beneficially own," any securities acquired through such person's
participation in good faith in a firm commitment underwriting until the
expiration of forty (40) days after the date of such acquisition.

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

            (f) "Close of business" on any given date shall mean 5:00 P.M., New
York City time, on such date; provided, however, that if such date is not a
Business Day it shall mean 5:00 P.M., New York City time, on the next succeeding
Business Day.

            (g) "Common Stock" shall have the meaning set forth in the first
WHEREAS clause at the beginning of this Agreement, except that "Common Stock"
when used with reference to any Person other than the Company shall mean the
capital stock of such Person with the greatest voting power, or the equity
securities or other equity interest having power to control or direct the
management, of such Person.


                                      - 3 -
<PAGE>   4
            (h) "Common Stock Equivalents" shall have the meaning set forth in
Section 11(a)(iii) hereof.

            (i) "Current Market Price" shall have the meaning set forth in
Section 11(d)(i) hereof.

            (j) "Current Value" shall have the meaning set forth in Section
11(a)(iii) hereof.

            (k) "Distribution Date" shall have the meaning set forth in Section
3(a) hereof.

            (l) "Exchange Act" shall have the meaning set forth in Section 1(c)
hereof.

            (m) "Expiration Date" shall have the meaning set forth in Section
7(a) hereof.

            (n) "Final Expiration Date" shall mean the close of business on
September 23, 2007.

            (o) "Person" shall mean any individual, firm, corporation,
partnership or other entity.

            (p) "Preferred Stock" shall mean shares of Series B Junior
Participating Preferred Stock, $.10 par value per share, of the Company, and, to
the extent that there are not a sufficient number of shares of Series B Junior
Participating Preferred Stock authorized to permit the full exercise of the
Rights, any other series of preferred stock of the Company designated for such
purpose containing terms substantially similar to the terms of the Series B
Junior Participating Preferred Stock.

            (q) "Principal Party" shall have the meaning set forth in Section
13(b) hereof.

            (r) "Purchase Price" shall have the meaning set forth in Section
4(a) hereof.

            (s) "Record Date" shall have the meaning set forth in the third
WHEREAS clause at the beginning of this Agreement.

            (t) "Redemption Price" shall have the meaning set forth in Section
23(a) hereof.

            (u) "Rights" shall have the meaning set forth in the third WHEREAS
clause at the beginning of the Agreement.

            (v) "Rights Agent" shall have the meaning set forth in the parties
clause at the beginning of this Agreement.


                                      - 4 -
<PAGE>   5
            (w) "Rights Certificates" shall have the meaning set forth in
Section 3(a) hereof.

            (x) "Rights Dividend Declaration Date" shall have the meaning set
forth in the third WHEREAS clause at the beginning of this Agreement.

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

            (z) "Section 11(a)(ii) Trigger Date" shall have the meaning set
forth in Section 11(a)(iii) hereof.

            (aa) "Section 13 Event" shall mean any event described in clauses
(x), (y) or (z) of Section 13(a) hereof.

            (bb) "Spread" shall have the meaning set forth in Section 11(a)(iii)
hereof.

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

            (dd) "Subsidiary" shall mean, with reference to any Person, any
corporation of which an amount of voting securities sufficient to elect at least
a majority of the directors of such corporation is beneficially owned, directly
or indirectly, by such Person, or otherwise controlled by such Person.

            (ee) "Substitution Period" shall have the meaning set forth in
Section 11(a)(iii) hereof.

            (ff) "Summary of Rights" shall have the meaning set forth in Section
3(b) hereof.

            (gg) "Trading Day" shall have the meaning set forth in Section
11(d)(i) hereof.

            (hh) "Triggering Event" shall mean any Section 11(a)(ii) Event or
any Section 13 Event.

            Section 2. Appointment of Rights Agent. The Company hereby appoints
the Rights Agent to act as agent for the Company in accordance with the terms
and conditions hereof, and the Rights Agent hereby accepts such appointment. The
Company may from time to time appoint such co-rights agents as it may deem
necessary or desirable.

            Section 3. Issue of Rights Certificates.


                                      - 5 -
<PAGE>   6
            (a) Until the earlier of (i) the close of business on the tenth day
after the Stock Acquisition Date (or, if the tenth day after the Stock
Acquisition Date occurs before the Record Date, the close of business on the
Record Date), or (ii) the close of business on the tenth Business Day (or such
later date as the Board shall determine) after the date that a tender or
exchange offer by any Person (other than the Company, any Subsidiary of the
Company, or any employee benefit plan of the Company or of any Subsidiary of the
Company, or any Person or entity organized, appointed or established by the
Company for or pursuant to the terms of any such plan) is first published or
sent or given within the meaning of Rule 14d-2(a) of the General Rules and
Regulations under the Exchange Act, if upon consummation thereof, such Person
would be the Beneficial Owner of fifteen percent (15%) or more of the shares of
Common Stock then outstanding (the earlier of (i) and (ii) being herein referred
to as the "Distribution Date"), (x) the Rights will be evidenced (subject to the
provisions of paragraph (b) of this Section 3) by the certificates for the
Common Stock registered in the names of the holders of the Common Stock (which
certificates for Common Stock shall be deemed also to be certificates for
Rights) and not by separate certificates, and (y) the Rights will be
transferable only in connection with the transfer of the underlying shares of
Common Stock (including a transfer to the Company). As soon as practicable after
the Distribution Date, the Rights Agent will send by first-class, insured,
postage prepaid mail, to each record holder of the Common Stock as of the close
of business on the Distribution Date, at the address of such holder shown on the
records of the Company, one or more right certificates, in substantially the
form of Exhibit B hereto (the "Rights Certificates"), evidencing one Right for
each share of Common Stock so held, subject to adjustment as provided herein. In
the event that an adjustment in the number of Rights per share of Common Stock
has been made pursuant to Section 11(p) hereof, at the time of distribution of
the Right Certificates, the Company shall make, and notify the Rights Agent of,
the necessary and appropriate rounding adjustments (in accordance with Section
14(a) hereof) so that Rights Certificates representing only whole numbers of
Rights are distributed and cash is paid in lieu of any fractional Rights. As of
and after the Distribution Date, the Rights will be evidenced solely by such
Rights Certificates.

            (b) The Company will make available a copy of a Summary of Rights,
in substantially the form attached hereto as Exhibit C (the "Summary of
Rights"), to any holder of Rights who may so request from time to time. With
respect to certificates for the Common Stock outstanding as of the Record Date
or which were issued subsequent to the Record Date, unless and until the
Distribution Date shall occur, the Rights will be evidenced by such certificates
for the Common Stock and the registered holders of the Common Stock shall also
be the registered holders of the associated Rights. Until the earlier of the
Distribution Date or the Expiration Date (as hereinafter defined), the transfer
of any certificates representing shares of Common Stock in respect of which
Rights have been issued shall also constitute the transfer of the Rights
associated with such shares of Common Stock.

            (c) Rights shall be issued in respect of all shares of Common Stock
which are issued (whether originally issued or from the Company's treasury)
after the Record Date but prior to the earlier of the Distribution Date or the
Expiration Date. Certificates representing such shares of Common Stock shall
also be deemed to be certificates for Rights, and shall bear the following
legend (or the legend required under the 1989 Agreement):


                                      - 6 -
<PAGE>   7
                  This certificate also evidences and entitles the holder hereof
            to certain Rights as set forth in the Rights Agreement between
            Trenwick Group Inc. (the "Company") and the Rights Agent thereunder
            (the "Rights Agreement"), the terms of which are hereby incorporated
            herein by reference and a copy of which is on file at the principal
            offices of the Company. Under certain circumstances, as set forth in
            the Rights Agreement, such Rights will be evidenced by separate
            certificates and will no longer be evidenced by this certificate.
            The Company will mail to the holder of this certificate a copy of
            the Rights Agreement, as in effect on the date of mailing, without
            charge, promptly after receipt of a written request therefor. Under
            certain circumstances set forth in the Rights Agreement, Rights
            issued to, or held by, any Person who is, was or becomes an
            Acquiring Person or any Affiliate or Associate thereof (as such
            terms are defined in the Rights Agreement), whether currently held
            by or on behalf of such Person or by any subsequent holder, may
            become null and void.

With respect to such certificates containing the foregoing legend (or the legend
required under the 1989 Agreement), until the earlier of (i) the Distribution
Date or (ii) the Expiration Date, the Rights associated with the Common Stock
represented by such certificates shall be evidenced by such certificates alone
and registered holders of Common Stock shall also be the registered holders of
the associated Rights, and the transfer of any of such certificates shall also
constitute the transfer of the Rights associated with the Common Stock
represented by such certificates.

            Section 4.  Form of Rights Certificates.

            (a) The Rights Certificates (and the forms of election to purchase
and of assignment to be printed on the reverse thereof) shall each be
substantially in the form set forth in Exhibit B hereto and may have such marks
of identification or designation and such legends, summaries or endorsements
printed thereon as the Company may deem appropriate and as are not inconsistent
with the provisions of this Agreement, or as may be required to comply with any
applicable law or with any rule or regulation made pursuant thereto or with any
rule or regulation of any stock exchange on which the Rights may from time to
time be listed, or to conform to usage. Subject to the provisions of Section 11
and Section 22 hereof, the Rights Certificates, whenever distributed, shall be
dated as of the Record Date and on their face shall entitle the holders thereof
to purchase such number of one two-hundredths of a share of Preferred Stock as
shall be set forth therein at the price set forth therein (such exercise price
per one two-hundredths of a share, the "Purchase Price"), but the amount and
type of securities purchasable upon the exercise of each Right and the Purchase
Price thereof shall be subject to adjustment as provided herein.

            (b) Any Rights Certificate issued pursuant to Section 3(a), Section
11(i) or Section 22 hereof that represents Rights beneficially owned by: (i) an
Acquiring Person or any Associate or Affiliate of an Acquiring Person, (ii) a
transferee of an Acquiring Person (or of any such Associate or Affiliate) who
becomes a transferee after the Acquiring Person becomes such,


                                      - 7 -
<PAGE>   8
or (iii) a transferee of an Acquiring Person (or of any such Associate or
Affiliate) who becomes a transferee prior to or concurrently with the Acquiring
Person becoming such and receives such Rights pursuant to either (A) a transfer
(whether or not for consideration) from the Acquiring Person to holders of
equity interests in such Acquiring Person or to any Person with whom such
Acquiring Person has any continuing agreement, arrangement or understanding
regarding the transferred Rights or (B) a transfer which the Board has
determined is part of a plan, arrangement or understanding which has as a
primary purpose or effect avoidance of Section 7(e) hereof, and any Rights
Certificate issued pursuant to Section 6 or Section 11 hereof upon transfer,
exchange, replacement or adjustment of any other Rights Certificate referred to
in this sentence, shall contain (to the extent feasible) the following legend:

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

            Section 5.  Countersignature and Registration.

            (a) The Rights Certificates shall be executed on behalf of the
Company by its Chairman of the Board, its President or any Vice President,
either manually or by facsimile signature, and shall have affixed thereto the
Company's seal or a facsimile thereof which shall be attested by the Secretary
or an Assistant Secretary or the Treasurer or an Assistant Treasurer of the
Company, either manually or by facsimile signature. The Rights Certificates
shall be manually countersigned by the Rights Agent and shall not be valid for
any purpose unless so countersigned. In case any officer of the Company who
shall have signed any of the Rights Certificates shall cease to be such officer
of the Company before countersignature by the Rights Agent and issuance and
delivery by the Company, such Rights Certificates, nevertheless, may be
countersigned by the Rights Agent and issued and delivered by the Company with
the same force and effect as though the person who signed such Rights
Certificates had not ceased to be such officer of the Company; and any Rights
Certificates may be signed on behalf of the Company by any person who, at the
actual date of the execution of such Rights Certificate, shall be a proper
officer of the Company to sign such Rights Certificate, although at the date of
the execution of this Rights Agreement any such person was not such an officer.

            (b) Following the Distribution Date, the Rights Agent will keep or
cause to be kept, at its principal office or offices designated as the
appropriate place for surrender of Rights Certificates upon exercise or
transfer, books for registration and transfer of the Rights Certificates issued
hereunder. Such books shall show the names and addresses of the respective
holders of the Rights Certificates, the number of Rights evidenced on its face
by each of the Rights Certificates and the date of each of the Rights
Certificates.


                                      - 8 -
<PAGE>   9
            Section 6. Transfer, Split Up, Combination and Exchange of Rights
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.

            (a) Subject to the provisions of Section 4(b), Section 7(e) and
Section 14 hereof, at any time after the close of business on the Distribution
Date, and at or prior to the close of business on the Expiration Date, any
Rights Certificate or Certificates (other than Rights Certificates that may have
been exchanged pursuant to Section 24) may be transferred, split up, combined or
exchanged for another Rights Certificate or Certificates, entitling the
registered holder to purchase a like number of one two-hundredths of a share of
Preferred Stock (or, following a Triggering Event, Common Stock, other
securities, cash or other assets, as the case may be) as the Rights Certificate
or Certificates surrendered then entitles such holder (or former holder in the
case of a transfer) to purchase. Any registered holder desiring to transfer,
split up, combine or exchange any Rights Certificate or Certificates shall make
such request in writing delivered to the Rights Agent, and shall surrender the
Rights Certificate or Certificates to be transferred, split up, combined or
exchanged at the principal office or offices of the Rights Agent designated for
such purpose. Neither the Rights Agent nor the Company shall be obligated to
take any action whatsoever with respect to the transfer of any such surrendered
Rights Certificate until the registered holder shall have completed and signed
the certificate contained in the form of assignment on the reverse side of such
Rights Certificate and shall have provided such additional evidence of the
identity of the Beneficial Owner (or former Beneficial Owner) or Affiliates or
Associates thereof as the Company shall reasonably request. Thereupon the Rights
Agent shall, subject to Section 4(b), Section 7(e) and Section 14 hereof,
countersign and deliver to the Person entitled thereto a Rights Certificate or
Rights Certificates, as the case may be, as so requested. The Company may
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer, split up, combination or
exchange of Rights Certificates.

            (b)   Upon receipt by the Company and the Rights Agent of evidence
reasonably satisfactory to them of the loss, theft, destruction or mutilation of
a Rights Certificate, and, in case of loss, theft or destruction, of indemnity
or security satisfactory to them, and reimbursement to the Company and the
Rights Agent of all reasonable expenses incidental thereto, and upon surrender
to the Rights Agent and cancellation of the Rights Certificate if mutilated, the
Company will execute and deliver a new Rights Certificate of like tenor to the
Rights Agent for countersignature and delivery to the registered owner in lieu
of the Rights Certificate so lost, stolen, destroyed or mutilated.

            Section 7. Exercise of Rights; Purchase Price; Expiration Date of
Rights.

            (a) Subject to Section 7(e) hereof, the registered holder of any
Rights Certificate may exercise the Rights evidenced thereby (except as
otherwise provided herein including, without limitation, the restrictions on
exercisability set forth in Section 9(c), Section 11(a) (iii) and Section 23(a)
hereof) in whole or in part at any time after the Distribution Date upon
surrender of the Rights Certificate, with the form of election to purchase and
the certificate on the reverse side thereof duly executed, to the Rights Agents
at the principal office or offices, of the Rights Agent designated for such
purpose, together with payment of the aggregate Purchase


                                      - 9 -
<PAGE>   10
Price with respect to the total number of one two-hundredths of a share (or
other securities, cash or other assets, as the case may be) as to which such
surrendered Rights are then exercisable, at or prior to the earlier of (i) the
close of business on September 23, 2007 (the "Final Expiration Date"), or (ii)
the time at which the Rights are redeemed as provided in Sections 23 and 24
hereof (the earlier of (i) and (ii) being herein referred to as the "Expiration
Date").

            (b) The Purchase Price for each one two-hundredths of a share of
Preferred Stock pursuant to the exercise of a Right shall initially be $125, and
shall be subject to adjustment from time to time as provided in Section 11 and
Section 13(a) hereof and shall be payable in accordance with paragraph (c)
below.

            (c) Upon receipt of a Rights Certificate representing exercisable
Rights, with the form of election to purchase and the certificate duly executed,
accompanied by payment, with respect to each Right so exercised, of the Purchase
Price per one two-hundredths of a share of Preferred Stock (or other shares,
securities, cash or other assets, as the case may be) to be purchased as set
forth below and an amount equal to any applicable transfer tax, the Rights Agent
shall, subject to Section 20(k) hereof, thereupon promptly (i) (A) requisition
from any transfer agent of the shares of Preferred Stock (or make available, if
the Rights Agent is the transfer agent for such shares) certificates for the
total number of one two-hundredths of a share of Preferred Stock to be purchased
and the Company hereby irrevocably authorizes its transfer agent to comply with
all such requests, or (B) if the Company shall have elected to deposit the total
number of shares of Preferred Stock issuable upon exercise of the Rights
hereunder with a depositary agent, requisition from the depositary agent
depositary receipts representing such number of one two-hundredths of a share of
Preferred Stock as are to be purchased (in which case certificates for the
shares of Preferred Stock represented by such receipts shall be deposited by the
transfer agent with the depositary agent) and the Company will direct the
depositary agent to comply with such request, (ii) requisition from the Company
the amount of cash, if any, to be paid in lieu of fractional shares in
accordance with Section 14 hereof, (iii) after receipt of such certificates or
depositary receipts, cause the same to be delivered to or upon the order of the
registered holder of such Rights Certificate, registered in such name or names
as may be designated by such holder, and (iv) after receipt thereof, deliver
such cash, if any, to or upon the order of the registered holder of such Rights
Certificate. The payment of the Purchase Price (as such amount may be reduced
pursuant to Section 11(a) hereof) shall be made in cash or by certified bank
check or bank draft payable to the order of the Company. In the event that the
Company is obligated to issue other securities (including Common Stock) of the
Company, pay cash and/or distribute other property pursuant to Section 11(a)
hereof, the Company will make all arrangements necessary so that such other
securities, cash and/or other property are available for distribution by the
Rights Agent, if and when appropriate. The Company reserves the right to require
prior to the occurrence of a Triggering Event that, upon any exercise of Rights,
a number of Rights be exercised so that only whole shares of Preferred Stock
would be issued.

            (d) In case the registered holder of any Rights Certificate shall
exercise less than all the Rights evidenced thereby, a new Rights Certificate
evidencing Rights equivalent to the Rights remaining unexercised shall be issued
by the Rights Agent and delivered to, or upon


                                     - 10 -
<PAGE>   11
the order of, the registered holder of such Rights Certificate, registered in
such name or names as may be designated by such holder, subject to the
provisions of Section 6 and Section 14 hereof.

            (e) Notwithstanding anything in this Agreement to the contrary, from
and after the first occurrence of a Section 11(a)(ii) Event, any Rights
beneficially owned by (i) an Acquiring Person or an Associate or Affiliate of an
Acquiring Person, (ii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) who becomes a transferee after the Acquiring Person
becomes such, or (iii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) who becomes a transferee prior to or concurrently with
the Acquiring Person becoming such and receives such Rights pursuant to either
(A) a transfer (whether or not for consideration) from the Acquiring Person to
holders of equity interests in such Acquiring Person or to any Person with whom
the Acquiring Person has any continuing agreement, arrangement or understanding
regarding the transferred Rights or (B) a transfer which the Board has
determined is part of a plan, arrangement or understanding which has as a
primary purpose or effect the avoidance of this Section 7(e), shall become null
and void without any further action and no holder of such Rights shall have any
rights whatsoever with respect to such Rights, whether under any provision of
this Agreement or otherwise. The Company shall use all reasonable efforts to
insure that the provisions of this Section 7(e) and Section 4(b) hereof are
complied with, but shall have no liability to any holder of Rights Certificates
or other Person as a result of its failure to make any determinations with
respect to an Acquiring Person or its Affiliates, Associates or transferees
hereunder.

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

            Section 8. Cancellation and Destruction of Rights Certificates. All
Rights Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or any of its
agents, be delivered to the Rights Agent for cancellation or in canceled form,
or, if surrendered to the Rights Agent, shall be canceled by it, and no Rights
Certificates shall be issued in lieu thereof except as expressly permitted by
any of the provisions of this Agreement. The Company shall deliver to the Rights
Agent for cancellation and retirement, and the Rights Agent shall so cancel and
retire, any other Rights Certificate purchased or acquired by the Company
otherwise than upon the exercise thereof. The Rights Agent shall deliver all
canceled Rights Certificates to the Company, or shall, at the written request of
the Company, destroy such canceled Rights Certificates, and in such case shall
deliver a certificate of destruction thereof to the Company.

            Section 9.  Reservation and Availability of Capital Stock.


                                     - 11 -
<PAGE>   12
            (a) The Company covenants and agrees that it will cause to be
reserved and kept available out of its authorized and unissued shares of
Preferred Stock (and, following the occurrence of a Triggering Event, out of its
authorized and unissued shares of Common Stock and/or other securities or out of
its authorized and issued shares held in its treasury), the number of shares of
Preferred Stock (and, following the occurrence of a Triggering Event, Common
Stock and/or other securities) that, as provided in this Agreement including
Section 11(a)(iii) hereof, will be sufficient to permit the exercise in full of
all outstanding Rights.

            (b) So long as the shares of Preferred Stock (and, following the
occurrence of a Triggering Event, Common Stock and/or other securities) issuable
and deliverable upon the exercise of the Rights may be listed on any national
securities exchange, the Company shall use its best efforts to cause, from and
after such time as the Rights become exercisable, all shares reserved for such
issuance to be listed on such exchange upon official notice of issuance upon
such exercise.

            (c) The Company shall use its best efforts to (i) file, as soon as
practicable following the earliest date after the first occurrence of a Section
11(a)(ii) Event on which the consideration to be delivered by the Company upon
exercise of the Rights has been determined in accordance with Section 11(a)
(iii) hereof, a registration statement under the Act, with respect to the
securities purchasable upon exercise of the Rights on an appropriate form, (ii)
cause such registration statement to become effective as soon as practicable
after such filing, and (iii) cause such registration statement to remain
effective (with a prospectus at all times meeting the requirements of the Act)
until the earlier of (A) the date as of which the Rights are no longer
exercisable for such securities, and (B) the date of the expiration of the
Rights. The Company will also take such action as may be appropriate under, or
to ensure compliance with, the securities or "blue sky" laws of the various
states in connection with the exercisability of the Rights. The Company may
temporarily suspend, for a period of time not to exceed ninety (90) days after
the date set forth in clause (i) of the first sentence of this Section 9(c), the
exercisability of the Rights in order to prepare and file such registration
statement and permit it to become effective. Upon any such suspension, the
Company shall issue a public announcement stating that the exercisability of the
Rights has been temporarily suspended, as well as a public announcement at such
time as the suspension is no longer in effect. In addition, if the Company shall
determine that a registration statement is required following the Distribution
Date, the Company may temporarily suspend the exercisability of the Rights until
such time as a registration statement has been declared effective.
Notwithstanding any provision of this Agreement to the contrary, the Rights
shall not be exercisable in any jurisdiction if the requisite qualification in
such jurisdiction shall not have been obtained, the exercise thereof is not
permitted under applicable law or a registration statement has not been declared
effective.

            (d) The Company covenants and agrees that it will take all such
action as may be necessary to ensure that all one two-hundredths of a share of
Preferred Stock (and, following the occurrence of a Triggering Event, Common
Stock and/or other securities) delivered upon exercise of Rights shall, at the
time of delivery of the certificates for such shares (subject to payment of the
Purchase Price), be duly and validly authorized and issued and fully paid and
non-assessable.


                                     - 12 -
<PAGE>   13
            (e) The Company further covenants and agrees that it will pay when
due and payable any and all federal and state transfer taxes and charges which
may be payable in respect of the issuance or delivery of the Rights Certificates
and of any certificates for a number of one two-hundredths of a share of
Preferred Stock (or Common Stock and/or other securities, as the case may be)
upon the exercise of Rights. The Company shall not, however, be required to pay
any transfer tax which may be payable in respect of any transfer or delivery of
Rights Certificates to a Person other than, or the issuance or delivery of a
number of one two-hundredths of a share of Preferred Stock (or Common Stock
and/or other securities, as the case may be) in respect of a name other than
that of, the registered holder of the Rights Certificates evidencing Rights
surrendered for exercise or to issue or deliver any certificates for a number of
one two-hundredths of a share of Preferred Stock (or Common Stock and/or other
securities, as the case may be) in a name other than that of the registered
holder upon the exercise of any Rights until such tax shall have been paid (any
such tax being payable by the holder of such Rights Certificate at the time of
surrender) or until it has been established to the Company's satisfaction that
no such tax is due.

            Section 10. Preferred Stock Record Date. Each person in whose name
any certificate for a number of one two-hundredths of a share of Preferred Stock
(or Common Stock and/or other securities, as the case may be) is issued upon the
exercise of Rights shall for all purposes be deemed to have become the holder of
record of such fractional shares of Preferred Stock (or Common Stock and/or
other securities, as the case may be) represented thereby on, and such
certificate shall be dated the date upon which the Rights Certificate evidencing
such Rights was duly surrendered and payment of the Purchase Price (and all
applicable transfer taxes) was made; provided, however, that if the date of such
surrender and payment is a date upon which the Preferred Stock (or Common Stock
and/or other securities, as the case may be) transfer books of the Company are
closed, such Person shall be deemed to have become the record holder of such
shares (fractional or otherwise) on, and such certificate shall be dated, the
next succeeding Business Day on which the Preferred Stock (or Common Stock
and/or other securities, as the case may be) transfer books of the Company are
open. Prior to the exercise of the Rights evidenced thereby, the holder of a
Rights Certificate shall not be entitled to any rights of a stockholder of the
Company with respect to shares for which the Rights shall be exercisable,
including, without limitation, the right to vote, to receive dividends or other
distributions or to exercise any preemptive rights, and shall not be entitled to
receive any notice of any proceedings of the Company, except as provided herein.

            Section 11. Adjustment of Purchase Price, Number and Kind of Shares
or Number of Rights. The Purchase Price, the number and kind of shares covered
by each Right and the number of Rights outstanding are subject to adjustment
from time to time as provided in this Section 11.

            (a)(i) In the event the Company shall at any time after the date of
            this Agreement (A) declare a dividend on the Preferred Stock payable
            in shares of Preferred Stock, (B) subdivide the outstanding
            Preferred Stock, (C) combine the outstanding Preferred Stock into a
            smaller number of shares, or (D) issue any shares of its capital
            stock in a reclassification of the Preferred Stock (including


                                     - 13 -
<PAGE>   14
            any such reclassification in connection with a consolidation or
            merger in which the Company is the continuing or surviving
            corporation), except as otherwise provided in this Section 11(a) and
            Section 7(e) hereof, the Purchase Price in effect at the time of the
            record date for such dividend or of the effective date of such
            subdivision, combination or reclassification, and the number and
            kind of shares of Preferred Stock or capital stock, as the case may
            be, issuable on such date, shall be proportionately adjusted so that
            the holder of any Right exercised after such time shall be entitled
            to receive, upon payment of the Purchase Price then in effect, the
            aggregate number and kind of shares of Preferred Stock or capital
            stock, as the case may be, which, if such Right had been exercised
            immediately prior to such date and at a time when the Preferred
            Stock transfer books of the Company were open, he would have owned
            upon such exercise and been entitled to receive by virtue of such
            dividend, subdivision, combination or reclassification. If an event
            occurs which would require an adjustment under both this Section
            11(a)(i) and Section 11(a)(ii) hereof, the adjustment provided for
            in this Section 11(a)(i) shall be in addition to, and shall be made
            prior to, any adjustment required pursuant to Section 11(a)(ii)
            hereof.

                  (ii) In the event any Person, alone or together with its
            Affiliates and Associates, shall, at any time after the Rights
            Dividend Declaration Date, becomes an Acquiring Person, unless the
            event causing such Person to become an Acquiring Person is a
            transaction set forth in Section 13(a) hereof, or is an acquisition
            of shares of Common Stock pursuant to a tender offer or an exchange
            offer for all outstanding shares of Common Stock at a price and on
            terms determined by at least a majority of the Board who are not
            officers of the Company and who are not representatives, nominees,
            Affiliates or Associates of an Acquiring Person, after receiving
            advice from one or more investment banking firms, to be (A) at a
            price that is not inadequate (taking into account all factors which
            such members of the Board deem relevant including, without
            limitation, prices which could reasonably be achieved if the Company
            or its assets were sold on an orderly basis designed to realize
            maximum value) and (B) otherwise in the best interests of the
            Company and its stockholders, then, promptly following the
            occurrence of such event, proper provision shall be made so that
            each holder of a Right (except as provided below and in Section 7(e)
            hereof) shall thereafter have the right to receive, upon exercise
            thereof at the then current Purchase Price in accordance with the
            terms of this Agreement, in lieu of a number of one two-hundredths
            of a share of Preferred Stock, such number of shares of Common Stock
            of the Company as shall equal the result obtained by (x) multiplying
            the then current Purchase Price by the then number of one
            two-hundredths of a share of Preferred Stock for which a Right was
            exercisable immediately prior to the first occurrence of a Section
            11(a)(ii) Event, and (y) dividing that product (which, following
            such first occurrence, shall thereafter be referred to as the
            "Purchase Price" for each Right and for all purposes of this
            Agreement) by fifty percent (50%) of the Current Market Price
            (determined pursuant to Section 11(d) hereof)


                                     - 14 -
<PAGE>   15
            per share of Common Stock on the date of such first occurrence (such
            number of shares, the "Adjustment Shares").

                  (iii) In the event that the number of shares of Common Stock
            which are authorized by the Company's certificate of incorporation
            but not outstanding or reserved for issuance for purposes other than
            upon exercise of the Rights are not sufficient to permit the
            exercise in full of the Rights in accordance with the foregoing
            subparagraph (ii) of this Section 11(a), the Company shall: (A)
            determine the value of the Adjustment Shares issuable upon the
            exercise of a Right (the "Current Value"), and (B) with respect to
            each Right, make adequate provision to substitute for the Adjustment
            Shares, upon the exercise of a Right and payment of the applicable
            Purchase Price, (1) cash, (2) a reduction in the Purchase Price, (3)
            Common Stock or other equity securities of the Company (including,
            without limitation, shares, or units of shares, of preferred stock,
            such as the Preferred Stock, which the Board has deemed to have the
            same value or economic rights as shares of Common Stock (such shares
            of preferred stock being referred to as "Common Stock
            Equivalents")), (4) debt securities of the Company, (5) other
            assets, or (6) any combination of the foregoing, having an aggregate
            value equal to the Current Value, where such aggregate value has
            been determined by the Board based upon the advice of a nationally
            recognized investment banking firm selected by the Board; provided,
            however, that if the Company shall not have made adequate provision
            to deliver value pursuant to clause (B) above within thirty (30)
            days following the later of (x) the first occurrence of a Section
            11(a)(ii) Event and (y) the date on which the Company's right of
            redemption pursuant to Section 23(a) expires (the later of (x) and
            (y) being referred to herein is the "Section 11(a)(ii) Trigger
            Date"), then the Company shall be obligated to deliver, upon the
            surrender for exercise of a Right and without requiring payment of
            the Purchase Price, shares of Common Stock (to the extent available)
            and then, if necessary, cash, which shares and/or cash have an
            aggregate value equal to the Spread. For purposes of the preceding
            sentence, the term "Spread" shall mean the excess of (i) the Current
            Market Value over (ii) the Purchase Price. If the Board determines
            in good faith that it is likely that sufficient additional shares of
            Common Stock could be authorized for issuance upon exercise in full
            of the Rights, the thirty (30) day period set forth above may be
            extended to the extent necessary, but not more than ninety (90) days
            after the Section 11(a)(ii) Trigger Date, in order that the Company
            may seek stockholder approval for the authorization of such
            additional shares (such thirty (30) day period, as it may be
            extended, is herein called the "Substitution Period"). To the extent
            that action is to be taken pursuant to the first and/or third
            sentences of this Section 11(a)(iii), the Company (x) shall provide,
            subject to Section 7(e) hereof, that such action shall apply
            uniformly to all outstanding Rights, and (y) may suspend the
            exercisability of the Rights until the expiration of the
            Substitution Period in order to seek such stockholder approval for
            such authorization of additional shares and/or to decide the
            appropriate form of distribution to be made pursuant to such first
            sentence and to determine the value thereof. In the event of any
            such


                                     - 15 -
<PAGE>   16
            suspension, the Company shall issue a public announcement stating
            that the exercisability of the Rights has been temporarily
            suspended, as well as a public announcement at such time as the
            suspension is no longer in effect. For purposes of this Section
            11(a)(iii), the value of each Adjustment Share shall be the Current
            Market Price per share of the Common Stock on the Section 11(a)(ii)
            Trigger Date and the per share or per unit value of any Common Stock
            Equivalent shall be deemed to equal the Current Market Value per
            share of the Common Stock on such date.

            (b) In case the Company shall fix a record date for the issuance of
rights, options or warrants to all holders of Preferred Stock entitling them to
subscribe for or purchase (for a period expiring within forty-five (45) calendar
days after such record date) Preferred Stock (or shares having the same rights,
privileges and preferences as the shares of Preferred Stock ("Equivalent
Preferred Stock")) or securities convertible into Preferred Stock or Equivalent
Preferred Stock at a price per share of Preferred Stock or per share of
Equivalent Preferred Stock (or having a conversion price per share, if a
security convertible into Preferred Stock or Equivalent Preferred Stock) less
than the Current Market Price (as determined pursuant to Section 11(d) hereof)
per share of Preferred Stock on such record date, the Purchase Price to be in
effect after such record date shall be determined by multiplying the Purchase
Price in effect immediately prior to such record date by a fraction, the
numerator of which shall be the number of shares of Preferred Stock outstanding
on such record date, plus the number of shares of Preferred Stock which the
aggregate offering price of the total number of shares of Preferred Stock and/or
Equivalent Preferred Stock so to be offered (and/or the aggregate initial
conversion price of the convertible securities so to be offered) would purchase
at such Current Market Price, and the denominator of which shall be the number
of shares of Preferred Stock outstanding on such record date, plus the number of
additional shares of Preferred Stock and/or Equivalent Preferred Stock to be
offered for subscription or purchase (or into which the convertible securities
so to be offered are initially convertible). In case such subscription price may
be paid by delivery of consideration part or all of which may be in a form other
than cash, the value of such consideration shall be as determined in good faith
by the Board, whose determination shall be described in a statement filed with
the Rights Agent and shall be binding on the Rights Agent and the holders of the
Rights. Shares of Preferred Stock owned by or held for the account of the
Company shall not be deemed outstanding for the purpose of any such computation.
Such adjustment shall be made successively whenever such a record date is fixed,
and in the event that such rights or warrants are not so issued, the Purchase
Price shall be adjusted to be the Purchase Price which would then be in effect
if such record date had not been fixed.

            (c) In case the Company shall fix a record date for a distribution
to all holders of Preferred Stock (including any such distribution made in
connection with a consolidation or merger in which the Company is the continuing
or surviving corporation) of evidences of indebtedness, cash (other than a
regular quarterly cash dividend out of the earnings or retained earnings of the
Company), assets (other than a dividend payable in Preferred Stock, but
including any dividend payable in stock other than Preferred Stock) or
subscription rights or warrants (excluding those referred to in Section 11(b)
hereof, the Purchase Price to be in effect after such record date shall be
determined by multiplying the Purchase Price in effect immediately prior to


                                     - 16 -
<PAGE>   17
such record date by a fraction, the numerator of which shall be the Current
Market Price (as determined pursuant to Section 11(d) hereof) per share of
Preferred Stock on such record date, less the fair market value (as determined
in good faith by the Board, whose determination shall be described in a
statement filed with the Rights Agent) of the portion of the cash, assets or
evidences of indebtedness so to be distributed or of such subscription rights or
warrants applicable to a share of Preferred Stock and the denominator of which
shall be such Current Market Price (as determined pursuant to Section 11(d)
hereof) per share of Preferred Stock. Such adjustments shall be made
successively whenever such a record date is fixed, and in the event that such
distribution is not so made, the Purchase Price shall be adjusted to be the
Purchase Price which would have been in effect if such record date had not been
fixed.

                  (d)(i)For the purpose of any computation hereunder, other than
            computations made pursuant to Section 11(a)(iii) hereof, the Current
            Market Price per share of Common Stock on any date shall be deemed
            to be the average of the daily closing prices per share of such
            Common Stock for the thirty (30) consecutive Trading Days (as
            hereinafter defined) immediately prior to such date, and for
            purposes of computations made pursuant to Section 11(a)(iii) hereof,
            the Current Market Price per share of Common Stock on any date shall
            be deemed to be the average of the daily closing prices per share of
            such Common Stock for the ten (10) consecutive Trading Days
            immediately following such date; provided, however, that in the
            event that the Current Market Price per share of the Common Stock is
            determined during a period following the announcement by the issuer
            of such Common Stock of (A) a dividend or distribution on such
            Common Stock payable in shares of such Common Stock or securities
            convertible into shares of such Common Stock (other than the
            Rights), or (B) any subdivision, combination or reclassification of
            such Common Stock, and the ex-dividend date for such dividend or
            distribution, or the record date for such subdivision, combination
            or reclassification shall not have occurred prior to the
            commencement of the requisite thirty (30) Trading Day or ten (10)
            Trading Day period, as set forth above, then, and in each such case,
            the Current Market Price shall be properly adjusted to take into
            account ex-dividend trading. The closing price for each day shall be
            the last sale price, regular way, or, in case no such sale takes
            place on such day, the average of the closing bid and asked prices,
            regular way, in either case as reported in the principal
            consolidated transaction reporting system with respect to securities
            listed or admitted to trading on the New York Stock Exchange or, if
            the shares of Common Stock are not listed or admitted to trading on
            the New York Stock Exchange, as reported in the principal
            consolidated transaction reporting system with respect to securities
            listed on the principal national securities exchange on which the
            shares of Common Stock are listed or admitted to trading or, if the
            shares of Common Stock are not listed or admitted to trading on any
            national securities exchange, the last quoted price or, if not so
            quoted, the average of the high bid and low asked prices in the
            over-the-counter market, as reported by the National Association of
            Securities Dealers, Inc. Automated Quotation System ("NASDAQ") or
            such other system then in use, or, if on any such date the shares of
            Common Stock are not quoted by any such


                                     - 17 -
<PAGE>   18
            organization, the average of the closing bid and asked prices as
            furnished by a professional market maker making a market in the
            Common Stock selected by the Board. If on any such date no market
            maker is making a market in the Common Stock, the fair value of such
            shares on such date as determined in good faith by the Board shall
            be used. The term "Trading Day" shall mean a day on which the
            principal national securities exchange on which the shares of Common
            Stock are listed or admitted to trading is open for the transaction
            of business or, if the shares of Common Stock are not listed or
            admitted to trading on any national securities exchange, a Business
            Day. If the Common Stock is not publicly held or not so listed or
            traded, Current Market Price per share shall mean the fair value per
            share as determined in good faith by the Board, whose determination
            shall be described in a statement filed with the Rights Agent and
            shall be conclusive for all purposes.

                  (ii) For the purpose of any computation hereunder, the Current
            Market Price per share of Preferred Stock shall be determined in the
            same manner as set forth above for the Common Stock in clause (i) of
            this Section 11(d) (other than the last sentence thereof). If the
            Current Market Price per share of Preferred Stock cannot be
            determined in the manner provided above or if the Preferred Stock is
            not publicly held or listed or traded in a manner described in
            clause (i) of this Section 11(d), the Current Market Price per share
            of Preferred Stock shall be conclusively deemed to be an amount
            equal to 200 (as such number may be appropriately adjusted for such
            events as stock splits, stock dividends and recapitalizations with
            respect to the Common Stock occurring after the date of this
            Agreement) multiplied by the Current Market Price per share of the
            Common Stock. If neither the Common Stock nor the Preferred Stock is
            publicly held or so listed or traded, Current Market Price per share
            of the Preferred Stock shall mean the fair value per share as
            determined in good faith by the Board, whose determination shall be
            described in a statement filed with the Rights Agent and shall be
            conclusive for all purposes.

            (e) Anything herein to the contrary notwithstanding, no adjustment
in the Purchase Price shall be required unless such adjustment would require an
increase or decrease of at least one percent (1%) in the Purchase Price;
provided, however, that any adjustments which by reason of this Section 11(e)
are not required to be made shall be carried forward and taken into account in
any subsequent adjustment. All calculations under this Section 11 shall be made
to the nearest cent or to the nearest ten-thousandth of a share of Common Stock
or other share or one-millionth of a share of Preferred Stock, as the case may
be. Notwithstanding the first sentence of this Section 11(e), any adjustment
required by this Section 11 shall be made no later than the earlier of (i) three
(3) years from the date of the transaction which mandates such adjustment, or
(ii) the Expiration Date.

            (f) If as a result of an adjustment made pursuant to Section
11(a)(ii) or Section 13(a) hereof, the holder of any Right thereafter exercised
shall become entitled to receive any shares of capital stock other than
Preferred Stock, thereafter the number of such other shares so receivable upon
exercise of any Right and the Purchase Price thereof shall be subject to


                                     - 18 -
<PAGE>   19
adjustment from time to time in a manner and on terms as nearly equivalent as
practicable to the provisions with respect to the Preferred Stock contained in
Sections 11(a), (b), (c), (e), (g), (h), (i), (j), (k) and (m), and the
provisions of Sections 7, 9, 10, 13 and 14 hereof with respect to the Preferred
Stock shall apply on like terms to any such other shares.

            (g) All Rights originally issued by the Company subsequent to any
adjustment made to the Purchase Price hereunder shall evidence the right to
purchase, at the adjusted Purchase Price, the number of one two-hundredths of a
share of Preferred Stock purchasable from time to time hereunder upon exercise
of the Rights, all subject to further adjustment as provided herein.

            (h) Unless the Company shall have exercised its election as provided
in Section 11(i), upon each adjustment of the Purchase Price as a result of the
calculations made in Sections 11(b) and (c), each Right outstanding immediately
prior to the making of such adjustment shall thereafter evidence the right to
purchase, at the adjusted Purchase Price, that number of one two-hundredths of a
share of Preferred Stock (calculated to the nearest one-millionth) obtained by
(i) multiplying (x) the number of one two-hundredths of a share covered by a
Right immediately prior to this adjustment, by (y) the Purchase Price in effect
immediately prior to such adjustment of the Purchase Price, and (ii) dividing
the product so obtained by the Purchase Price in effect immediately after such
adjustment of the Purchase Price.

            (i) The Company may elect on or after the date of any adjustment of
the Purchase Price to adjust the number of Rights, in lieu of any adjustment in
the number of one two-hundredths of a share of Preferred Stock purchasable upon
the exercise of a Right. Each of the Rights outstanding after the adjustment in
the number of Rights shall be exercisable for the number of one two-hundredths
of a share of Preferred Stock for which a Right was exercisable immediately
prior to such adjustment. Each Right held of record prior to such adjustment of
the number of Rights shall become that number of Rights (calculated to the
nearest one ten-thousandth) obtained by dividing the Purchase Price in effect
immediately prior to adjustment of the Purchase Price by the Purchase Price in
effect immediately after adjustment of the Purchase Price. The Company shall
make a public announcement of its election to adjust the number of Rights,
indicating the record date for the adjustment, and, if known at the time, the
amount of the adjustment to be made. This record date may be the date on which
the Purchase Price is adjusted or any day thereafter, but, if the Rights
Certificates have been issued, shall be at least ten (10) days later than the
date of the public announcement. If Rights Certificates have been issued, upon
each adjustment of the number of Rights pursuant to this Section 11(i), the
Company shall, as promptly as practicable, cause to be distributed to holders of
record of Rights Certificates on such record date Rights Certificates
evidencing, subject to Section 14 hereof, the additional Rights to which such
holders shall be entitled as a result of such adjustment, or, at the option of
the Company, shall cause to be distributed to such holders of record in
substitution and replacement for the Rights Certificates held by such holders
prior to the date of adjustment, and upon surrender thereof, if required by the
Company, new Rights Certificates evidencing all the Rights to which such holders
shall be entitled after such adjustment. Rights Certificates so to be
distributed shall be issued, executed and countersigned in the manner provided
for herein (and may bear, at the option of the Company, the adjusted Purchase
Price) and shall be registered in


                                     - 19 -
<PAGE>   20
the names of the holders of record of Rights Certificates on the record date
specified in the public announcement.

            (j) Irrespective of any adjustment or change in the Purchase Price
or the number of one two-hundredths of a share of Preferred Stock issuable upon
the exercise of the Rights, the Rights Certificates theretofore and thereafter
issued may continue to express the Purchase Price per one two-hundredths of a
share and the number of one two-hundredths of a share which were expressed in
the initial Rights Certificates issued hereunder.

            (k) Before taking any action that would cause an adjustment reducing
the Purchase Price below the then stated value, if any, of the number of one
two-hundredths of a share of Preferred Stock issuable upon exercise of the
Rights, the Company shall take any corporate action which may, in the opinion of
its counsel, be necessary in order that the Company may validly and legally
issue fully paid and non-assessable such number of one two-hundredths of a share
of Preferred Stock at such adjusted Purchase Price.

            (l) In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuance to the holder of any Right exercised after such record date
the number of one two-hundredths of a share of Preferred Stock and other capital
stock or securities of the Company, if any, issuable upon such exercise over and
above the number of one two-hundredths of a share of Preferred Stock and other
capital stock or securities of the Company, if any, issuable upon such exercise
on the basis of the Purchase Price in effect prior to such adjustment; provided,
however, that the Company shall deliver to such holder a due bill or other
appropriate instrument evidencing such holder's right to receive such additional
shares (fractional or otherwise) or securities upon the occurrence of the event
requiring such adjustment.

            (m) Anything in this Section 11 to the contrary notwithstanding, the
Company shall be entitled to make such reductions in the Purchase Price, in
addition to those adjustments expressly required by this Section 11, as and to
the extent that in their good faith judgment the Board shall determine to be
advisable in order that any (i) consolidation or subdivision of the Preferred
Stock, (ii) issuance wholly for cash of any shares of Preferred Stock at less
than the Current Market Price, (iii) issuance wholly for cash of shares of
Preferred Stock or securities which by their terms are convertible into or
exchangeable for shares of Preferred Stock, (iv) stock dividends or (v) issuance
of rights, options or warrants referred to in this Section 11, hereafter made by
the Company to holders of its Preferred Stock shall not be taxable to such
stockholders.

            (n) The Company covenants and agrees that it shall not, at any time
after the Distribution Date, (i) consolidate with any other Person (other than a
Subsidiary of the Company in a transaction which complies with Section 11(o)
hereof), (ii) merge with or into any other Person (other than a Subsidiary of
the Company in a transaction which complies with Section 11(o) hereof), or (iii)
sell or transfer (or permit any Subsidiary to sell or transfer), in one
transaction, or a series of related transactions, assets or earning power
aggregating more than


                                     - 20 -
<PAGE>   21
fifty percent (50%) of the assets or earning power of the Company and its
Subsidiaries (taken as a whole) to any other Person or Persons (other than the
Company and/or any of its Subsidiaries in one or more transactions each of which
complies with Section 11(o) hereof), if (x) at the time of or immediately after
such consolidation, merger or sale there are any rights, warrants or other
instruments or securities outstanding or agreements in effect which would
substantially diminish or otherwise eliminate the benefits intended to be
afforded by the Rights or (y) prior to, simultaneously with or immediately after
such consolidation, merger or sale, the stockholders of the Person who
constitutes, or would constitute, the "Principal Party" for purposes of Section
13(a) hereof shall have received a distribution of Rights previously owned by
such Person or any of its Affiliates and Associates.

            (o) The Company covenants and agrees that, after the Distribution
Date, it will not, except as permitted by Section 23 or Section 27 hereof, take
(or permit any Subsidiary to take) any action if at the time such action is
taken it is reasonably foreseeable that such action will diminish substantially
or otherwise eliminate the benefits intended to be afforded by the Rights.

            (p) Anything in this Agreement to the contrary notwithstanding, in
the event that the Company shall at any time after the Rights Dividend
Declaration Date and prior to the Distribution Date (i) declare a dividend on
the outstanding shares of Common Stock payable in shares of Common Stock, (ii)
subdivide the outstanding shares of Common Stock, or (iii) combine the
outstanding shares of Common Stock into a smaller number of shares, the number
of Rights associated with each share of Common Stock then outstanding, or issued
or delivered thereafter but prior to the Distribution Date, shall be
proportionately adjusted so that the number of Rights thereafter associated with
each share of Common Stock following any such event shall equal the result
obtained by multiplying the number of Rights associated with each share of
Common Stock immediately prior to such event by a fraction the numerator which
shall be the total number of shares of Common Stock outstanding immediately
prior to the occurrence of the event and the denominator of which shall be the
total number of shares of Common Stock outstanding immediately following the
occurrence of such event.

            Section 12. Certificate of Adjusted Purchase Price or Number of
Shares. Whenever an adjustment is made as provided in Section 11 and Section 13
hereof, the Company shall (a) promptly prepare a certificate setting forth such
adjustment and a brief statement of the facts accounting for such adjustment,
(b) promptly file with the Rights Agent, and with each transfer agent for the
Preferred Stock and the Common Stock, a copy of such certificate, and (c) if a
Distribution Date has occurred mail a brief summary thereof to each holder of a
Rights Certificate in accordance with Section 26 thereof. The Rights Agent shall
be fully protected in relying on any such certificate and on any adjustment
therein contained.

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

            (a) In the event that, following the Stock Acquisition Date,
directly or indirectly, (x) the Company shall consolidate with, or merge with
and into, any other Person


                                     - 21 -
<PAGE>   22
(other than a Subsidiary of the Company in a transaction which complies with
Section 11(o) hereof), and the Company shall not be the continuing or surviving
corporation of such consolidation or merger, (y) any Person (other than a
Subsidiary of the Company in a transaction which complies with Section 11(o)
hereof) shall consolidate with, or merge with or into, the Company, and the
Company shall be the continuing or surviving corporation of such consolidation
or merger and, in connection with such consolidation or merger, all or part of
the outstanding shares of Common Stock shall be changed into or exchanged for
stock or other securities of any other Person or cash or any other property, or
(z) the Company shall sell or otherwise transfer (or one or more of its
Subsidiaries shall sell or otherwise transfer), in one transaction or a series
of related transactions, assets or earning power aggregating more than fifty
percent (50%) of the assets or earning power of the Company and its Subsidiaries
(taken as a whole) to any Person or Persons (other than the Company or any
Subsidiary of the Company in one or more transactions each of which complies
with Section 11(o) hereof), then, and in each such case (except as may be
contemplated by Section 13(d) hereof), proper provision shall be made so that:
(i) each holder of a Right, except as provided in Section 7(e) hereof, shall
thereafter have the right to receive, upon the exercise thereof at the then
current Purchase Price in accordance with the terms of this Agreement, such
number of validly authorized and issued, fully paid, non-assessable and freely
tradeable shares of Common Stock of the Principal Party (as such term is
hereinafter defined), not subject to any liens, encumbrances, rights of first
refusal or other adverse claims, as shall be equal to the result obtained by (1)
multiplying the then current Purchase Price by the number of one two-hundredths
of a share of Preferred Stock for which a Right is exercisable immediately prior
to the first occurrence of a Section 13 Event (or, if a Section 11(a)(ii) Event
has occurred prior to the first occurrence of a Section 13 Event, multiplying
the number of such one two-hundredths of a share for which a Right was
exercisable immediately prior to the first occurrence of a Section 11(a)(ii)
Event by the Purchase Price in effect immediately prior to such first
occurrence), and dividing that product (which, following the first occurrence of
a Section 13 Event, shall be referred to as the "Purchase Price" for each Right
and for all purposes of this Agreement) by (2) fifty percent (50%) of the
Current Market Price (determined pursuant to Section 11(d)(i) hereof) per share
of the Common Stock of such Principal Party on the date of consummation of such
Section 13 Event; (ii) such Principal Party shall thereafter be liable for, and
shall assume, by virtue of such Section 13 Event, all the obligations and duties
of the Company pursuant to this Agreement; (iii) the term "Company" shall
thereafter be deemed to refer to such Principal Party, it being specifically
intended that the provisions of Section 11 hereof shall apply only to such
Principal Party following the first occurrence of a Section 13 Event; (iv) such
Principal Party shall take such steps (including, but not limited to, the
reservation of a sufficient number of shares of its Common Stock) in connection
with the consummation of any such transaction as may be necessary to assure that
the provisions hereof shall thereafter be applicable, as nearly as reasonably
may be, in relation to its shares of Common Stock thereafter deliverable upon
the exercise of the Rights; and (v) the provisions of Section 11(a)(ii) hereof
shall be of no effect following the first occurrence of any Section 13 Event.

            (b) "Principal Party" shall mean


                                     - 22 -
<PAGE>   23
                  (i) in the case of any transaction described in clause (x) or
            (y) of the first sentence of Section 13(a), the Person that is the
            issuer of any securities into which shares of Common Stock of the
            Company are converted in such merger or consolidation, and if no
            securities are so issued, the Person that is the other party to such
            merger or consolidation; and

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

provided, however, that in any such case, (1) if the Common Stock of such Person
is not at such time and has not been continuously over the preceding twelve (12)
month period registered under Section 12 of the Exchange Act, and such Person is
a direct or indirect Subsidiary of another Person, the Common Stock of which is
and has been so registered, "Principal Party" shall refer to such other Person;
and (2) in case such Person is a Subsidiary, directly or indirectly, of more
than one Person, the Common Stocks of two or more of which are and have been so
registered, "Principal Party" shall refer to whichever of such Persons is the
issuer of the Common Stock having the greatest aggregate market value.

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

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

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

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


                                     - 23 -
<PAGE>   24
            (d) Notwithstanding anything in this Agreement to the contrary,
Section 13 shall not be applicable to a transaction described in subparagraphs
(x) and (y) of Section 13(a) if (i) such transaction is consummated with a
Person or Persons who acquired shares of Common Stock pursuant to a tender offer
or exchange offer for all outstanding shares of Common Stock which complies with
the provisions of Section 11(a)(ii) hereof (or a wholly owned subsidiary of any
such Person or Persons), (ii) the price per share of Common Stock offered in
such transaction is not less than the price per share of Common Stock paid to
all holders of shares of Common Stock whose shares were purchased pursuant to
such tender offer or exchange offer and (iii) the form of consideration being
offered to the remaining holders of shares of Common Stock pursuant to such
transaction is the same as the form of consideration paid pursuant to such
tender offer or exchange offer. Upon consummation of any such transaction
contemplated by this Section 13(d), all Rights hereunder shall expire.

            Section 14.  Fractional Rights and Fractional Shares.

            (a) The Company shall not be required to issue fractions of Rights,
except prior to the Distribution Date as provided in Section 11(p) hereof, or to
distribute Rights Certificates which evidence fractional Rights. In lieu of such
fractional Rights, there shall be paid to the registered holders of the Rights
Certificates, with regard to which such fractional Rights would otherwise be
issuable, an amount in cash equal to the same fraction of the current market
value of a whole Right. For purposes of this Section 14(a), the current market
value of a whole Right shall be the closing price of the Rights for the Trading
Day immediately prior to the date on which such fractional Rights would have
been otherwise issuable. The closing price of the Rights for any day shall be
the last sale price, regular way, or, in case no such sale takes place on such
day, the average of the closing bid and asked prices, regular way, in either
case as reported in the principal consolidated transaction reporting system with
respect to securities listed or admitted to trading on the New York Stock
Exchange or, if the Rights are not listed or admitted to trading on the New York
Stock Exchange, as reported in the principal consolidated transaction reporting
system with respect to securities listed on the principal national securities
exchange on which the Rights are listed or admitted to trading, or if the Rights
are not listed or admitted to trading on any national securities exchange, the
last quoted price or, if not so quoted, the average of the high bid and low
asked prices in the over-the-counter market, as reported by NASDAQ or such other
system then in use or, if on any such date the Rights are not quoted by any such
organization, the average of the closing bid and asked prices as furnished by a
professional market maker making a market in the Rights selected by the Board.
If on any such date no such market maker is making a market in the Rights the
fair value of the Rights on such date as determined in good faith by the Board
shall be used. The Company shall promptly notify the Rights Agent of any such
determination of current market value.

            (b) The Company shall not be required to issue fractions of shares
of Preferred Stock (other than fractions which are integral multiples of one
two-hundredths of a share of Preferred Stock) upon exercise of the Rights or to
distribute certificates which evidence fractional shares of Preferred Stock
(other than fractions which are integral multiples of one two-hundredths of a
share of Preferred Stock). In lieu of fractional shares of Preferred Stock that
are not integral multiples of one two-hundredths of a share of Preferred Stock,
the Company may


                                     - 24 -
<PAGE>   25
pay to the registered holders of Rights Certificates at the time such Rights arc
exercised as herein provided an amount in cash equal to the same fraction of the
current market value of one two-hundredths of a share of Preferred Stock. For
purposes of this Section 14(b), the current market value of one two-hundredths
of a share of Preferred Stock shall be one two-hundredths of the closing price
of a share of Preferred Stock (as determined pursuant to Section 11(d)(ii)
hereof) for the Trading Day immediately prior to the date of such exercise.

            (c) Following the occurrence of a Triggering Event, the Company
shall not be required to issue fractions of shares of Common Stock upon exercise
of the Rights or to distribute certificates which evidence fractional shares of
Common Stock. In lieu of fractional shares of Common Stock, the Company may pay
to the registered holders of Rights Certificates at the time such Rights are
exercised as herein provided an amount in cash equal to the same fraction of the
current market value of one (1) share of Common Stock. For purposes of this
Section 14(c), the current market value of one share of Common Stock shall be
the closing price of one share of Common Stock (as determined pursuant to
Section 11(d)(i) hereof) for the Trading Day immediately prior to the date of
such exercise.

            (d) The holder of a Right by the acceptance of the Rights expressly
waives his right to receive any fractional Rights or any fractional shares upon
exercise of a Right, except as permitted by this Section 14.

            Section 15. Rights of Action. All rights of action in respect of
this Agreement are vested in the respective registered holders of the Rights
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Stock); and any registered holder of any Rights Certificate (or, prior to
the Distribution Date, of the Common Stock), without the consent of the Rights
Agent or of the holder of any other Rights Certificate (or, prior to the
Distribution Date, of the Common Stock), may, in his own behalf and for his own
benefit, enforce, and may institute and maintain any suit, action or proceeding
against the Company to enforce, or otherwise act in respect of, his right to
exercise the Rights evidenced by such Rights Certificate in the manner provided
in such Rights Certificate and in this Agreement. Without limiting the foregoing
or any remedies available to the holders of Rights, it is specifically
acknowledged that the holders of Rights would not have an adequate remedy at law
for any breach of this Agreement and shall be entitled to specific performance
of the obligations hereunder and injunctive relief against actual or threatened
violations of the obligations hereunder of any Person subject to this Agreement.

            Section 16. Agreement of Rights Holders. Every holder of a Right by
accepting the same consents and agrees with the Company and the Rights Agent and
with every other holder of a Right that:

            (a) prior to the Distribution Date, the Rights will be transferable
only in connection with the transfer of Common Stock;

            (b) after the Distribution Date, the Rights Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the principal office or offices of the


                                     - 25 -
<PAGE>   26
Rights Agent designated for such purposes, duly endorsed or accompanied by a
proper instrument of transfer and with the appropriate forms and certificates
fully executed;

                  (c) subject to Section 6(a) and Section 7(f) hereof, the
Company and the Rights Agent may deem and treat the person in whose name a
Rights Certificate (or, prior to the Distribution Date, the associated Common
Stock certificate) is registered as the absolute owner thereof and of the Rights
evidenced thereby (notwithstanding any notations of ownership or writing on the
Rights Certificates or the associated Common Stock certificate made by anyone
other than the Company or the Rights Agent) for all purposes whatsoever, and
neither the Company nor the Rights Agent, subject to the last sentence of
Section 7(e) hereof, shall be required to be affected by any notice or knowledge
to the contrary; and

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

                  Section 17. Rights Certificate Holder Not Deemed a
Stockholder. No holder, as such, of any Rights Certificate shall be entitled to
vote, receive dividends or be deemed for any purpose the holder of the number of
one two-hundredths of a share of Preferred Stock or any other securities of the
Company which may at any time be issuable on the exercise of the Rights
represented thereby, nor shall anything contained herein or in any Rights
Certificate be construed to confer upon the holder of any Rights Certificate, as
such, any of the rights of a stockholder of the Company or any right to vote for
the election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in Section 25 hereof), or to receive dividends or subscription rights,
or otherwise, until the Right or Rights evidenced by such Rights Certificate
shall have been exercised in accordance with the provisions hereof.

                  Section 18.  Concerning the Rights Agent.

                  (a) The Company agrees to pay to the Rights Agent reasonable
compensation for all services rendered by it hereunder and, from time to time,
on demand of the Rights Agent, its reasonable expenses and counsel fees and
disbursements and other disbursements incurred in the administration and
execution of this Agreement and the exercise and performance of its duties
hereunder. The Company also agrees to indemnify the Rights Agent for, and to
hold it harmless against, any loss, liability, or expense, incurred without
negligence, bad faith or willful misconduct on the part of the Rights Agent, for
anything done or omitted by the Rights Agent in


                                     - 26 -
<PAGE>   27
connection with the acceptance and administration of this Agreement, including
the costs and expenses of defending against any claim of liability in the
premises.

                  (b) The Rights Agent shall be protected and shall incur no
liability for or in respect of any action taken, suffered or omitted by it in
connection with its administration of this Agreement in reliance upon any Rights
Certificate or certificate for Common Stock or for other securities of the
Company, instrument of assignment or transfer, power of attorney, endorsement,
affidavit, letter, notice, direction, consent, certificate, statement, or other
paper or document believed by it to be genuine and to be signed, executed and,
where necessary, verified or acknowledged, by the proper Person or Persons.

                  Section 19. Merger or Consolidation or Change of Name of
Rights Agent.

                  (a) Any corporation into which the Rights Agent or any
successor Rights Agent may be merged or with which it may be consolidated, or
any corporation resulting from any merger or consolidation to which the Rights
Agent or any successor Rights Agent shall be a party, or any corporation
succeeding to the corporate trust or stock transfer business of the Rights Agent
or any successor Rights Agent, shall be the successor to the Rights Agent under
this Agreement without the execution or filing of any paper or any further act
on the part of any of the parties hereto; provided, however, that such
corporation would be eligible for appointment as a successor Rights Agent under
the provisions of Section 21 hereof. In case at the time such successor Rights
Agent shall succeed to the agency created by this Agreement, any of the Rights
Certificates shall have been countersigned but not delivered, any such successor
Rights Agent may adopt the countersignature of a predecessor Rights Agent and
deliver such Rights Certificates so countersigned; and in case at that time any
of the Rights Certificates shall not have been countersigned, any successor
Rights Agent may countersign such Rights Certificates either in the name of the
predecessor or in the name of the successor Rights Agent; and in all such cases
such Rights Certificates shall have the full force provided in the Rights
Certificates and in this Agreement.

                  (b) In case at any time the name of the Rights Agent shall be
changed and at such time any of the Rights Certificates shall have been
countersigned but not delivered, the Rights Agent may adopt the countersignature
under its prior name and deliver Rights Certificates so countersigned; and in
case at that time any of the Rights Certificates shall not have been
countersigned, the Rights Agent may countersign such Rights Certificates either
in its prior name or in its changed name; and in all such cases such Rights
Certificates shall have the full force provided in the Rights Certificates and
in this Agreement.

                  Section 20. Duties of Rights Agent. The Rights Agent
undertakes the duties and obligations imposed by this Agreement upon the
following terms and conditions, by all of which the Company and the holders of
Rights Certificates, by their acceptance thereof, shall be bound:

                  (a) The Rights Agent may consult with legal counsel (who may
be legal counsel for the Company), and the opinion of such counsel shall be full
and complete


                                     - 27 -
<PAGE>   28
authorization and protection to the Rights Agent as to any action taken or
omitted by it in good faith and in accordance with such opinion.

                  (b) Whenever in the performance of its duties under this
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter (including, without limitation, the identity of any Acquiring Person and
the determination of Current Market Price) be proved or established by the
Company prior to taking or suffering any action hereunder, such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed to be conclusively proved and established by a certificate signed by
the Chairman of the Board, the President, any Vice President, the Treasurer, any
Assistant Treasurer, the Secretary or any Assistant Secretary of the Company and
delivered to the Rights Agent; and such certificate shall be full authorization
to the Rights Agent for any action taken or suffered in good faith by it under
the provisions of this Agreement in reliance upon such certificate.

                  (c) The Rights Agent shall be liable hereunder only for its
own negligence, bad faith or willful misconduct.

                  (d) The Rights Agent shall not be liable for or by reason of
any of the statements of fact or recitals contained in this Agreement or in the
Rights Certificates or be required to verify the same (except as to its
countersignature on such Rights Certificates), but all such statements and
recitals are and shall be deemed to have been made by the Company only.

                  (e) The Rights Agent shall not be under any responsibility in
respect of the validity of this Agreement or the execution and delivery hereof
(except the due execution hereof by the Rights Agent) or in respect of the
validity or execution of any Rights Certificate (except its countersignature
thereof); nor shall it be responsible for any breach by the Company of any
covenant or condition contained in this Agreement or in any Rights Certificate;
nor shall it be responsible for any adjustment required under the provisions of
Section 11 or Section 13 hereof or responsible for the manner, method or amount
of any such adjustment or the ascertaining of the existence of facts that would
require any such adjustment (except with respect to the exercise of Rights
evidenced by Rights Certificates after actual notice of any such adjustment);
nor shall it by any act hereunder be deemed to make any representation or
warranty as to the authorization or reservation of any shares of Common Stock or
Preferred Stock to be issued pursuant to this Agreement or any Rights
Certificate or as to whether any shares of Common Stock or Preferred Stock will,
when so issued, be validly authorized and issued, fully paid and non-assessable.

                  (f) The Company agrees that it will perform, execute,
acknowledge and deliver or cause to be performed, executed, acknowledged and
delivered all such further and other acts, instruments and assurances as may
reasonably be required by the Rights Agent for the carrying out or performing by
the Rights Agent of the provisions of this Agreement.

                  (g) The Rights Agent is hereby authorized and directed to
accept instructions with respect to the performance of its duties hereunder from
the Chairman of the Board, the President, any Vice President, the Secretary, any
Assistant Secretary, the Treasurer or any Assistant Treasurer of the Company,
and to apply to such officers for advice or instructions in


                                     - 28 -
<PAGE>   29
connection with its duties, and it shall not be liable for any action taken or
suffered to be taken by it in good faith in accordance with instructions of any
such officer.

                  (h) The Rights Agent and any stockholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or other
securities of the Company or become pecuniarily interested in any transaction in
which the Company may be interested, or contract with or lend money to the
Company or otherwise act as fully and freely as though it were not Rights Agent
under his Agreement. Nothing herein shall preclude the Rights Agent from acting
in any other capacity for the Company or for any other legal entity.

                  (i) The Rights Agent may execute and exercise any of the
rights or powers hereby vested in it or perform any duty hereunder either itself
or by or through its attorneys or agents, and the Rights Agent shall not be
answerable or accountable for any act, default, neglect or misconduct of any
such attorneys or agents or for any loss to the Company resulting from any such
act, default, neglect or misconduct; provided, however, reasonable care was
exercised in the selection and continued employment thereof.

                  (j) No provision of this Agreement shall require the Rights
Agent to expend or risk its own funds or otherwise incur any financial liability
in the performance of any of its duties hereunder or in the exercise of its
rights if there shall be reasonable grounds for believing that repayment of such
funds or adequate indemnification against such risk or liability is not
reasonably assured to it.

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

                  Section 21. Change of Rights Agent. The Rights Agent or any
successor Rights Agent may resign and be discharged from its duties under this
Agreement upon thirty (30) days' notice in writing mailed to the Company and to
each transfer agent of the Common Stock and Preferred Stock, by registered or
certified mail, and, subsequent to the Distribution Date, to the holders of the
Rights Certificates by first-class mail. The Company may remove the Rights Agent
or any successor Rights Agent upon thirty (30) days' notice in writing, mailed
to the Rights Agent or successor Rights Agent, as the case may be, and to each
transfer agent of the Common Stock and Preferred Stock, by registered or
certified mail to the holders of the Rights Certificates by first-class mail. If
the Rights Agent shall resign or be removed or shall otherwise become incapable
of acting, the Company shall appoint a successor to the Rights Agent. If the
Company shall fail to make such appointment within a period of thirty (30) days
after giving notice of such removal or after it has been notified in writing of
such resignation or incapacity by the resigning or incapacitated Rights Agent or
by the holder of a Rights Certificate (who shall, with such notice, submit his
Rights Certificate for inspection by the Company), then any registered holder of
any Rights Certificate may apply to any court of competent jurisdiction for the
appointment of a new Rights Agent. Any successor Rights Agent, whether appointed
by the


                                     - 29 -
<PAGE>   30
Company or by such a court, shall be (a) a legal business entity organized and
doing business under the laws of the United States or any State thereof, in good
standing, which is authorized under such laws to exercise corporate trust or
stock transfer powers and is subject to supervision or examination by federal or
state authority and which has at the time of its appointment as Rights Agent a
combined capital and surplus of at least $25,000,000 or (b) an affiliate of a
legal business entity described in clause (a) of this sentence. After
appointment, the successor Rights Agent shall be vested with the same powers,
rights, duties and responsibilities as if it had been originally named as Rights
Agent without further act or deed; but the predecessor Rights Agent shall
deliver and transfer to the successor Rights Agent any property at the time held
by it hereunder, and execute and deliver any further assurance, conveyance, act
or deed necessary for the purpose. Not later than the effective date of any such
appointment, the Company shall file notice thereof in writing with the
predecessor Rights Agent and each transfer agent of the Common Stock and the
Preferred Stock, and mail a notice thereof in writing to the registered holders
of the Rights Certificates. Failure to give any notice provided for in this
Section 21, however, or any defect therein, shall not affect the legality or
validity of the resignation or removal of the Rights Agent or the appointment of
the successor Rights Agent, as the case may be.

                  Section 22. Issuance of New Rights Certificates.
Notwithstanding any of the provisions of this Agreement or of the Rights to the
contrary, the Company may, at its option, issue new Rights Certificates
evidencing Rights in such form as may be approved by its Board to reflect any
adjustment or change in the Purchase Price and the number or kind or class of
shares or other securities or property purchasable under the Rights Certificates
made in accordance with the provisions of this Agreement. In addition, in
connection with the issuance or sale of shares of Common Stock following the
Distribution Date and prior to the redemption or expiration of the Rights, the
Company (a) shall, with respect to shares of Common Stock so issued or sold
pursuant to the exercise of stock options or under any employee plan or
arrangement, granted or awarded as of the Distribution Date, or upon the
exercise, conversion or exchange of securities hereinafter issued by the
Company, and (b) may, in any other case, if deemed necessary or appropriate by
the Board, issue Rights Certificates representing the appropriate number of
Rights in connection with such issuance or sale; provided, however, that (i) no
such Rights Certificate shall be issued if, and to the extent that, the Company
shall be advised by counsel that such issuance would create a significant risk
of material adverse tax consequences to the Company or the Person to whom such
Rights Certificate would be issued, and (ii) no such Rights Certificate shall be
issued if, and to the extent that, appropriate adjustment shall otherwise have
been made in lieu of the issuance thereof.

                  Section 23.  Redemption and Termination.

                  (a) The Board may, at its option, at any time prior to the
earlier of (i) the close of business on the Stock Acquisition Date (or, if the
Stock Acquisition Date shall have occurred prior to the Record Date, the close
of business on the Record Date), or (ii) the Final Expiration Date, redeem all
but not less than all the then outstanding Rights at a redemption price of $.01
per Right, as such amount may be appropriately adjusted to reflect any stock
split, stock dividend or similar transaction occurring after the date hereof
(such redemption price being hereinafter


                                     - 30 -
<PAGE>   31
referred to as the "Redemption Price"). Notwithstanding anything contained in
this Agreement to the contrary, the Rights shall not be exercisable after the
first occurrence of a Section 11(a)(ii) Event until such time as the Company's
right of redemption hereunder has expired. The Company may, at its option, pay
the Redemption Price in cash, shares of Common Stock (based on the Current
Market Price, as defined in Section 11(d)(i) hereof, of the Common Stock at the
time of redemption) or any other form of consideration deemed appropriate by the
Board.

                  (b) Immediately upon the action of the Board ordering the
redemption of the Rights, evidence of which shall have been filed with the
Rights Agent and without any further action and without any notice, the right to
exercise the Rights will terminate and the only right thereafter of the holders
of Rights shall be to receive the Redemption Price for each Right so held.
Promptly after the action of the Board ordering the redemption of the Rights,
the Company shall give notice of such redemption to the Rights Agent and the
holders of the then outstanding Rights by mailing such notice to all such
holders at each holder's last address as it appears upon the registry books of
the Rights Agent or, prior to the Distribution Date, on the registry books of
the transfer agent for the Common Stock. Any notice which is mailed in the
manner herein provided shall be deemed given, whether or not the holder receives
the notice. Each such notice of redemption will state the method by which the
payment of the Redemption Price will be made.

                  (c) Notwithstanding the provisions of Section 23(a) hereof, in
the event that a majority of the Board is elected by stockholder action by
written consent, or is comprised of persons elected at a meeting of stockholders
who were not nominated by the Board in office immediately prior to such meeting,
then for a period of one hundred and eighty (180) days following the
effectiveness of such election the Rights shall not be redeemed if such
redemption is reasonably likely to have the purpose or effect of allowing any
Person to become an Acquiring Person or otherwise facilitating the occurrence of
a Triggering Event or a transaction with an Acquiring Person.

                  Section 24.  Exchange.

                  (a) The Board may, at its option, at any time after any Person
becomes an Acquiring Person, exchange all or part of the then outstanding and
exercisable Rights (which shall not include Rights that have become void
pursuant to the provisions of Section 7(e) hereof) for Common Stock at an
exchange ratio of one share of Common Stock per Right, appropriately adjusted to
reflect any stock split, stock dividend or similar transaction occurring after
the date hereof (such exchange ratio being hereinafter referred to as the
"Exchange Ratio"). Notwithstanding the foregoing, the Board shall not be
empowered to effect such exchange at any time after any person (other than the
Company, any Subsidiary of the Company, any employee benefit plan of the Company
or any such Subsidiary, or any entity holding Common Stock for or pursuant to
the terms of any such plan), together with all Affiliates and Associates of such
Person, becomes the Beneficial Owner of 50% or more of the Common Stock then
outstanding.

                  (b) Immediately upon the action of the Board ordering the
exchange of any Rights pursuant to subsection (a) of this Section 24 and without
any further action and without any notice, the right to exercise such Rights
shall terminate and the only right thereafter of a


                                     - 31 -
<PAGE>   32
holder of such Rights shall be to receive that number of Common Stock equal to
the number of such Rights held by such holder multiplied by the Exchange Ratio.
The Company shall promptly give public notice of any such exchange; provided,
however, that the failure to give, or any defect in, such notice shall not
affect the validity of such exchange. The Company promptly shall mail a notice
of any such exchange to all of the holders of such Rights at their last
addresses as they appear upon the registry books of the Rights Agent. Any notice
which is mailed in the manner herein provided shall be deemed given, whether or
not the holder receives the notice. Each such notice of exchange will state the
method by which the exchange of the Common Stock for Rights will be effected
and, in the event of any partial exchange, the number of Rights which will be
exchanged. Any partial exchange shall be effected pro rata based on the number
of Rights (other than Rights which have become void pursuant to the provisions
of Section 7(e) hereof) held by each holder of Rights.

                  (c) In any exchange pursuant to this Section 24, the Company,
at its option, may substitute Preferred Stock (or Equivalent Preferred Stock, as
such term is defined in paragraph (b) of Section 11 hereof) for Common Stock
exchangeable for rights, at the initial rate of one two-hundredths of a share of
Preferred Stock (or Equivalent Preferred Stock) for each Common Stock, as
appropriately adjusted to reflect stock splits, stock dividends and other
similar transactions after the date hereof.

                  (d) In the event that there shall not be sufficient Common
Stock issued but not outstanding or authorized but unissued to permit any
exchange of Rights as contemplated in accordance with this Section 24, the
Company shall take all such action as may be necessary to authorize additional
Common Stock for issuance upon exchange of the Rights.

                  (e) The Company shall not be required to issue fractions of
Common Stock or to distribute certificates which evidence fractional Common
Stock. In lieu of such fractional Common Stock, there shall be paid to the
registered holders of the Rights Certificates with regard to which such
fractional Common Stock would otherwise be issuable, an amount in cash equal to
the same fraction of the current market value of a whole Common Stock. For the
purposes of this subsection (e), the Current Market Value of a whole Common
Stock shall be the closing price of a Common Stock (as determined pursuant to
the second sentence of Section 11(d)(i) hereof) for the Trading Day immediately
prior to the date of exchange pursuant to this Section 24.

                  Section 25. Notice of Certain Events. (a) In case the Company
shall propose, at any time after the Distribution Date, (i) to pay any dividend
payable in stock of any class to the holders of Preferred Stock or to make any
other distribution to the holders of Preferred Stock (other than a regular
quarterly cash dividend out of earnings or retained earnings of the Company), or
(ii) to offer to the holders of Preferred Stock rights or warrants to subscribe
for or to purchase any additional shares of Preferred Stock or shares of stock
of any class or any other securities, rights or options, or (iii) to effect any
reclassification of its Preferred Stock (other than a reclassification involving
only the subdivision of outstanding shares of Preferred Stock), or (iv) to
effect any consolidation or merger into or with any other Person (other than a
Subsidiary of the Company in a transaction which complies with Section 11(o)
hereof), or to effect any sale or


                                     - 32 -
<PAGE>   33
other transfer (or to permit one or more of its Subsidiaries to effect any sale
or other transfer), in one transaction or a series of related transactions, of
more than fifty percent (50%) of the assets or earning power of the Company and
its Subsidiaries (taken as a whole) to any other Person or Persons (other than
the Company and/or any of its Subsidiaries in one or more transactions each of
which complies with Section 11(o) hereof), or (v) to effect the liquidation,
dissolution or winding up of the Company, then, in each such case, the Company
shall give to each holder of a Rights Certificate, to the extent feasible and in
accordance with Section 26 hereof, a notice of such proposed action, which shall
specify the record date for the purposes of such stock dividend, distribution of
rights or warrants, or the date on which such reclassification, consolidation,
merger, sale, transfer, liquidation, dissolution, or winding up is to take place
and the date of participation therein by the holders of the shares of Preferred
Stock, if any such date is to be fixed, and such notice shall be so given in the
case of any action covered by clause (i) or (ii) above at least twenty (20) days
prior to the record date for determining holders of the shares of Preferred
Stock for purposes of such action, and in the case of any such other action, at
least twenty (20) days prior to the date of the taking of such proposed action
or the date of participation therein by the holders of the shares of Preferred
Stock, whichever shall be the earlier.

                  (b) In case any of the events set forth in Section 11(a) (ii)
hereof shall occur, then, in any such case, (i) the Company shall as soon as
practicable thereafter give to each holder of a Rights Certificate, to the
extent feasible and in accordance with Section 26 hereof, and to the Rights
Agent, a notice of the occurrence of such event, which shall specify the event
and the consequences of the event to holders of Rights under Section 11(a)(ii)
hereof, and (ii) all references in the preceding paragraph to Preferred Stock
shall be deemed thereafter to refer to Common Stock and/or, if appropriate,
other securities.

                  Section 26. Notices. Notices or demands authorized by this
Agreement to be given or made by the Rights Agent or by the holder of any Rights
Certificate to or on the Company shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed (until another address is filed in
writing with the Rights Agent) as follows:

                           Trenwick Group Inc.
                           Metro Center
                           One Station Place
                           Stamford, Connecticut 06902
                           Attention: Corporate Secretary

Subject to the provisions of Section 21, any notice or demand authorized by this
Agreement to be given or made by the Company or by the holder of any Rights
Certificate to or on the Rights Agent shall be sufficiently given or made if
sent by first-class mail, postage prepaid, addressed (until another address is
filed in writing with the Company) as follows:



                                     - 33 -
<PAGE>   34
                           First Chicago Trust Company of New York
                           525 Washington Boulevard, Suite 4660
                           Jersey City, New Jersey 07310
                           Attention: Tenders and Exchange Administration

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Rights Certificate (or, if
prior to the Distribution Date, to the holder of certificates representing
shares of Common Stock) shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed to such holder at the address of
such holder as shown on the registry books of the Company.

                  Section 27. Supplements and Amendments. Prior to the
Distribution Date, the Company and the Rights Agent shall, if the Company so
directs, supplement or amend any provision of this Agreement without the
approval of any holders of certificates representing shares of Common Stock.
From and after the Distribution Date, the Company and the Rights Agent shall, if
the Company so directs, supplement or amend this Agreement without the approval
of any holders of Rights Certificates in order (i) to cure any ambiguity, (ii)
to correct or supplement any provision contained herein which may be defective
or inconsistent with any other provisions herein, (iii) to shorten or lengthen
any time period hereunder, or (iv) to change or supplement the provisions
hereunder in any manner which the Company may deem necessary or desirable and
which shall not adversely affect the interests of the holders of Rights
Certificates; provided that, from and after the Distribution Date, this
Agreement may not be supplemented or amended to lengthen any time period
hereunder, pursuant to clause (iii) of this sentence unless such lengthening is
for the purpose of protecting, enhancing or clarifying the rights of, and/or the
benefits to, the holders of Rights. Upon the delivery of a certificate from an
appropriate officer of the Company which states that the proposed supplement or
amendment is in compliance with the terms of this Section 27, the Rights Agent
shall execute such supplement or amendment. Prior to the Distribution Date, the
interests of the holders of Rights shall be deemed coincident with the interests
of the holders of Common Stock. Notwithstanding anything contained herein to the
contrary, this Agreement may not be amended at a time when the rights are not
redeemable.

                  Section 28. Successors. All the covenants and provisions of
this Agreement by or for the benefit of the Company or the Rights Agent shall
bind and inure to the benefit of their respective successors and assigns
hereunder.

                  Section 29. Determinations and Actions by the Board, etc. For
all purposes of this Agreement, any calculation of the number of shares of
Common Stock outstanding at any particular time, including for purposes of
determining the particular percentage of such outstanding shares of Common Stock
of which any Person is the Beneficial Owner, shall be made in accordance with
the last sentence of Rule 13d-3(d)(1)(i) of the General Rules and Regulations
under the Exchange Act. The Board shall have the exclusive power and authority
to administer this Agreement and to exercise all rights and powers specifically
granted to the Board or to the Company, or as may be necessary or advisable in
the administration of this Agreement, including, without limitation, the right
and power to (i) interpret the provisions of this


                                     - 34 -
<PAGE>   35
Agreement, and (ii) make all determinations deemed necessary or advisable for
the administration of this Agreement (including a determination to redeem or not
redeem the Rights or to amend the Agreement). All such actions, calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
in good faith, shall (x) be final, conclusive and binding on the Company, the
Rights Agent, the holders of the Rights and all other parties, and (y) not
subject the Board to any liability to the holders of the Rights.

                  Section 30. Benefits of this Agreement. Nothing in this
Agreement shall be construed to give to any Person other than the Company, the
Rights Agent and the registered holders of the Rights Certificates (and, prior
to the Distribution Date, registered holders of the Common Stock) any legal or
equitable right, remedy or claim under this Agreement; but this Agreement shall
be for the sole and exclusive benefit of the Company, the Rights Agent and the
registered holders of the Rights Certificates (and, prior to the Distribution
Date, registered holders of the Common Stock).

                  Section 31. Severability. If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated;
provided, however, that notwithstanding anything in this Agreement to the
contrary, if any such term, provision, covenant or restriction is held by such
court or authority to be invalid, void or unenforceable and the Board determines
in its good faith judgment that severing the invalid language from this
Agreement would adversely affect the purpose or effect of this Agreement, the
right of redemption set forth in Section 23 hereof shall be reinstated and shall
not expire until the close of business on the tenth day following the date of
such determination by the Board.

                  Section 32. Governing Law. This Agreement, each Right and each
Rights Certificate issued hereunder shall be deemed to be a contract made under
the laws of the State of Delaware and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts made
and to be performed entirely within such State, except that the rights, duties
and obligations of the Rights Agent shall be governed by the laws of the State
of New York.

                  Section 33. Counterparts. This Agreement may be executed in
any number of counterparts and each of such counterparts shall for all purposes
be deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.

                  Section 34. Descriptive Headings. Descriptive headings of the
several Sections of this Agreement are inserted for convenience only and shall
not control or affect the meaning or construction of any of the provisions
hereof.



                                     - 35 -
<PAGE>   36
                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed and their respective corporate seals to be
hereunto affixed and attested, all as of the day and year first above written.


Attest:                                           TRENWICK GROUP INC.


By: /s/ Jane Wiznitzer                    By: /s/ James F. Billett, Jr.
   ----------------------                     -------------------------
                                                 
Name: Jane Wiznitzer                      Name: James F. Billett, Jr.
Title: Corporate Secretary                Title: Chairman, President and
                                                 Chief Executive Officer
                                                

Attest:                                   FIRST CHICAGO TRUST COMPANY
                                                   OF NEW YORK


By: /s/ Gerard J. O'Leary                 By: /s/ James Kuzmich
   ----------------------                    -----------------
Name:   Gerard J. O'Leary                 Name:  James Kuzmich
Title:  Vice President                    Title: Assistant Vice 
                                                 President


                                     - 36 -
<PAGE>   37
                                                                       Exhibit A


                                     FORM OF
                   CERTIFICATE OF DESIGNATION, PREFERENCES AND
                     RIGHTS OF SERIES B JUNIOR PARTICIPATING
                                 PREFERRED STOCK
                                       OF
                              TRENWICK GROUP, INC.
                            $.10 PAR VALUE PER SHARE


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


                  We, James F. Billett, Jr., Chairman of the Board, and Jane T.
Wiznitzer, Corporate Secretary, of Trenwick Group Inc., a corporation organized
and existing under the General Corporation Law of the State of Delaware, in
accordance with the provisions of Section 103 thereof, DO HEREBY CERTIFY:

                  That pursuant to the authority conferred upon the Board of
Directors by the Restated Certificate of Incorporation of the said Corporation,
the said Board of Directors on July 30, 1997, adopted the following resolution
creating a series of 200,000 shares of Preferred Stock designated as Series B
Junior Participating Preferred Stock:

                  RESOLVED, that pursuant to the authority vested in the Board
of Directors of this Corporation in accordance with the provisions of its
Restated Certificate of Incorporation, a series of Preferred Stock of the
Corporation be and it hereby is created, and that the designation and amount
thereof and the voting powers, preferences and relative, participating, optional
and other special rights of the shares of such series, and the qualifications,
limitations or restrictions thereof are as follows:

                  Section 1. Designation and Amount. The shares of such series
shall be designated as "Series B Junior Participating Preferred Stock" and the
number of shares constituting such series shall be 200,000.

                  Section 2.  Dividends and Distributions.

                  (A) Subject to the prior and superior rights of the holders of
any shares of any series of Preferred Stock ranking prior and superior to the
shares of Series B Junior Participating Preferred Stock with respect to
dividends, the holders of shares of Series B Junior Participating Preferred
Stock shall be entitled to receive, when, as and if declared by the Board of
Directors out of funds legally available for the purpose, quarterly dividends
payable in cash on the first business day of January, April, July and October in
each year (each such date being referred to


                                       A-1
<PAGE>   38
herein as a "Quarterly Dividend Payment Date"), commencing on the first
Quarterly Dividend Payment Date after the first issuance of a share or fraction
of a share of Series B Junior Participating Preferred Stock, in an amount per
share (rounded to the nearest cent) equal to the greater of (a) $1.00 or (b)
subject to the provision for adjustment hereinafter set forth, 200 times the
aggregate per share amount of all cash dividends, and 200 times the aggregate
per share amount (payable in kind) of all non-cash dividends or other
distributions other than a dividend payable in shares of Common Stock or a
subdivision of the outstanding shares of Common Stock (by reclassification or
otherwise), declared on the Common Stock, $.10 par value per share, of the
Corporation (the "Common Stock") since the immediately preceding Quarterly
Dividend Payment Date, or, with respect to the first Quarterly Dividend Payment
Date, since the first issuance of any share or fraction of a share of Series B
Junior Participating Preferred Stock. In the event the Corporation shall at any
time after July 30, 1997 (the "Rights Declaration Date") (i) declare any
dividend on Common Stock payable in shares of Common Stock, (ii) subdivide the
outstanding Common Stock, or (iii) combine the outstanding Common Stock into a
smaller number of shares, then in each such case the amount to which holders of
shares of Series B Junior Participating Preferred Stock were entitled
immediately prior to such event under clause (b) of the preceding sentence shall
be adjusted by multiplying such amount by a fraction the numerator of which is
the number of shares of Common Stock outstanding immediately after such event
and the denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

                  (B) The Corporation shall declare a dividend or distribution
on the Series B Junior Participating Preferred Stock as provided in paragraph
(A) above immediately after it declares a dividend or distribution on the Common
Stock (other than a dividend payable in shares of Common Stock); provided that,
in the event no dividend or distribution shall have been declared on the Common
Stock during the period between any Quarterly Dividend Payment Date and the next
subsequent Quarterly Dividend Payment Date, a dividend of $1.00 per share on the
Series B Junior Participating Preferred Stock shall nevertheless be payable on
such subsequent Quarterly Dividend Payment Date.

                  (C) Dividends shall begin to accrue and be cumulative on
outstanding shares of Series B Junior Participating Preferred Stock from the
Quarterly Dividend Payment Date next preceding the date of issue of such shares
of Series B Junior Participating Preferred Stock, unless the date of issue of
such shares is prior to the record date for the first Quarterly Dividend Payment
Date, in which case dividends on such shares shall begin to accrue from the date
of issue of such shares, or unless the date of issue is a Quarterly Dividend
Payment Date or is a date after the record date for the determination of holders
of shares of Series B Junior Participating Preferred Stock entitled to receive a
quarterly dividend and before such Quarterly Dividend Payment Date, in either of
which events such dividends shall begin to accrue and be cumulative from such
Quarterly Dividend Payment Date. Accrued but unpaid dividends shall not bear
interest. Dividends paid on the shares of Series B Junior Participating
Preferred Stock in an amount less than the total amount of such dividends at the
time accrued and payable on such shares shall be allocated pro rata on a
share-by-share basis among all such shares at the time outstanding. The Board of
Directors may fix a record date for the determination of holders of shares of
Series B Junior Participating Preferred Stock entitled to receive payment of a
dividend


                                       A-2
<PAGE>   39
or distribution declared thereon, which record date shall be no more than 30
days prior to the date fixed for the payment thereof.

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

                  (A) Subject to the provision for adjustment hereinafter set
forth, each share of Series B Junior Participating Preferred Stock shall entitle
the holder thereof to 200 votes on all matters submitted to a vote of the
stockholders of the Corporation. In the event the Corporation shall at any time
after the Rights Declaration Date (i) declare any dividend on Common Stock
payable in shares of Common Stock, (ii) subdivide the outstanding Common Stock,
or (iii) combine the outstanding Common Stock into a smaller number of shares,
then in each such case the number of votes per share to which holders of shares
of Series B Junior Participating Preferred Stock were entitled immediately prior
to such event shall be adjusted by multiplying such number by a fraction the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

                  (B) Except as otherwise provided herein or by law, the holders
of shares of Series B Junior Participating Preferred Stock and the holders of
shares of Common Stock shall vote together as one class on all matters submitted
to a vote of stockholders of the Corporation.

                  (C) (i) If at any time dividends on any Series B Junior
Participating Preferred Stock shall be in arrears in an amount equal to six (6)
quarterly dividends thereon, the occurrence of such contingency shall mark the
beginning of a period (herein called a "default period") which shall extend
until such time when all accrued and unpaid dividends for all previous quarterly
dividend periods and for the current quarterly dividend period on all shares of
Series B Junior Participating Preferred Stock then outstanding shall have been
declared and paid or set apart for payment. During each default period, all
holders of Preferred Stock (including holders of the Series B Junior
Participating Preferred Stock) with dividends in arrears in an amount equal to
six (6) quarterly dividends thereon, voting as a class, irrespective of series,
shall have the right to elect two (2) Directors.

                      (ii) During any default period, such voting right of the
holders of Series B Junior Participating Preferred Stock may be exercised
initially at a special meeting called pursuant to subparagraph (iii) of this
Section 3(C) or at any annual meeting of stockholders, and thereafter at annual
meetings of stockholders, provided that such voting right shall not be exercised
unless the holders of ten percent (10%) in number of shares of Preferred Stock
outstanding shall be present in person or by proxy. The absence of a quorum of
the holders of Common Stock shall not affect the exercise by the holders of
Preferred Stock of such voting right. At any meeting at which the holders of
Preferred Stock shall exercise such voting right initially during an existing
default period, they shall have the right, voting as a class, to elect Directors
to fill such vacancies, if any, in the Board of Directors as may then exist up
to two (2) Directors or, if such right is exercised at an annual meeting, to
elect two (2) Directors. If the number which may be so elected at any special
meeting does not amount to the required number,


                                       A-3
<PAGE>   40
the holders of the Preferred Stock shall have the right to make such increase in
the number of Directors as shall be necessary to permit the election by them of
the required number. After the holders of the Preferred Stock shall have
exercised their right to elect Directors in any default period and during the
continuance of such period, the number of Directors shall not be increased or
decreased except by vote of the holders of Preferred Stock as herein provided or
pursuant to the rights of any equity securities ranking senior to or pari passu
with the Series B Junior Participating Preferred Stock.

                           (iii) Unless the holders of Preferred Stock shall,
during an existing default period, have previously exercised their right to
elect Directors, the Board of Directors may order, or any stockholder or
stockholders owning in the aggregate not less than ten percent (10%) of the
total number of shares of Preferred Stock outstanding, irrespective of series,
may request, the calling of special meeting of the holders of Preferred Stock,
which meeting shall thereupon be called by the President, a Vice-President or
the Secretary of the Corporation. Notice of such meeting and of any annual
meeting at which holders of Preferred Stock are entitled to vote pursuant to
this Paragraph (C)(iii) shall be given to each holder of record of Preferred
Stock by mailing a copy of such notice to him at his last address as the same
appears on the books of the Corporation. Such meeting shall be called for a time
not earlier than 20 days and later than 60 days after such order or request or
in default of the calling of such meeting within 60 days after such order or
request, such meeting may be called on similar notice by any stockholder or
stockholders owning in the aggregate not less than ten percent (10)% of the
total number of shares of Preferred Stock outstanding. Notwithstanding the
provisions of this Paragraph (C)(iii), no such special meeting shall be called
during the period within 60 days immediately preceding the date fixed for the
next annual meeting of the stockholders.

                           (iv) In any default period, the holders of Common
Stock, and other classes of stock of the Corporation if applicable, shall
continue to be entitled to elect the whole number of Directors until the holders
of Preferred Stock shall have exercised their right to elect two (2) Directors
voting as a class, after the exercise of which right (x) the Directors so
elected by the holders of Preferred Stock shall continue in office until their
successors shall have been elected by such holders or until the expiration of
the default period, and (y) any vacancy in the Board of Directors may (except as
provided in Paragraph (C)(ii) of this Section 3) be filled by vote of a majority
of the remaining Directors theretofore elected by the holders of the class of
stock which elected the Director whose office shall have become vacant.
References in this Paragraph (C) to Directors elected by the holders of a
particular class of stock shall include Directors elected by such Directors to
fill vacancies as provided in clause (y) of the foregoing sentence.

                           (v) Immediately upon the expiration of a default
period, (x) the right of the holders of Preferred Stock as a class to elect
Directors shall cease, (y) the term of any Directors elected by the holders of
Preferred Stock as a class shall terminate, and (z) the number of Directors
shall be such number as may be provided for in the certificate of incorporation
or by-laws irrespective of any increase made pursuant to the provisions of
Paragraph (C)(ii) of this Section 3 (such number being subject, however, to
change thereafter in any manner provided by law or in the certificate of
incorporation or by-laws). Any vacancies in the Board of Directors


                                       A-4
<PAGE>   41
effected by the provisions of clauses (y) and (z) in the preceding sentence may
be filled by a majority of the remaining Directors.

                  (D) Except as set forth herein, holders of Series B Junior
Participating Preferred Stock shall have no special voting rights and their
consent shall not be required (except to the extent they are entitled to vote
with holders of Common Stock as set forth herein) for taking any corporate
action.

                  Section 4.  Certain Restrictions.

                  (A) Whenever quarterly dividends or other dividends or
distributions payable on the Series B Junior Participating Preferred Stock as
provided in Section 2 are in arrears, thereafter and until all accrued and
unpaid dividends and distributions, whether or not declared, on shares of Series
B Junior Participating Preferred Stock outstanding shall have been paid in full,
the Corporation shall not

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

                           (ii) declare or pay dividends on or make any other
                  distributions on any shares of stock ranking on a parity
                  (either as to dividends or upon liquidation, dissolution or
                  winding up) with the Series B Junior Participating Preferred
                  Stock, except dividends paid ratably on the Series B Junior
                  Participating Preferred Stock and all such parity stock on
                  which dividends are payable or in arrears in proportion to the
                  total amounts to which the holders of all such shares are then
                  entitled;

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

                           (iv) purchase or otherwise acquire for consideration
                  any shares of Series B Junior Participating Preferred Stock,
                  or any shares of stock ranking on a parity with the Series B
                  Junior Preferred Stock, except in accordance with a purchase
                  offer made in writing or by publication (as determined by the
                  Board of Directors) to all holders of such shares upon such
                  terms as the Board of Directors, after consideration of the
                  respective annual dividend rates and other relative rights and
                  preferences of the respective series and classes, shall
                  determine in good faith will result in fair and equitable
                  treatment among the respective series or classes.


                                       A-5
<PAGE>   42
                  (B) The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under paragraph (A) of
this Section 4, purchase or otherwise acquire such shares at such time and in
such manner.

                  Section 5. Reacquired Shares. Any shares of Series B Junior
Participating Preferred Stock purchased or otherwise acquired by the Corporation
in any manner whatsoever shall be retired and canceled promptly after the
acquisition thereof. All such shares shall upon their cancellation become
authorized but unissued shares of Preferred Stock and may be reissued as part of
a new series of Preferred Stock to be created by resolution or resolutions of
the Board of Directors, subject to the conditions and restrictions on issuance
set forth herein.

                  Section 6. Liquidation, Dissolution or Winding Up. (A) Subject
to the prior and superior rights of holders of any shares of any series of
Preferred Stock ranking prior and superior to the shares of Series B Junior
Participating Preferred Stock with respect to liquidation, dissolution or
winding up rights, upon any liquidation (voluntary or otherwise), dissolution or
winding up of the Corporation, no distribution shall be made to the holders of
shares of stock ranking junior (either as to dividends or upon liquidation,
dissolution or winding up) to the Series B Junior Participating Preferred Stock
unless, prior thereto, the holders of shares of Series B Junior Participating
Preferred Stock shall have received $100 per share, plus an amount equal to
accrued and unpaid dividends and distributions thereon, whether or not declared,
to the date of such payment (the "Series B Liquidation Preference"). Following
the payment of the full amount of the Series B Liquidation Preference, no
additional distributions shall be made to the holders of shares of Series B
Junior Participating Preferred Stock unless, prior thereto, the holders of
shares of Common Stock shall have received an amount per share (the "Common
Adjustment") equal to the quotient obtained by dividing (i) the Series B
Liquidation Preference by (ii) 200 (as appropriately adjusted as set forth in
sub paragraph (C) below to reflect such events as stock splits, stock dividends
and recapitalizations with respect to the Common Stock) (such number in clause
(ii), the "Adjustment Number"). Following the payment of the full amount of the
Series B Liquidation Preference and the Common Adjustment in respect of all
outstanding shares of Series B Junior Participating Preferred Stock and Common
Stock, respectively, holders of Series B Junior Participating Preferred Stock
and holders of shares of Common Stock shall receive their ratable and
proportionate share of the remaining assets to be distributed in the ratio of
the Adjustment Number to 1 with respect to such Preferred Stock and Common
Stock, on a per share basis, respectively.

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



                                       A-6
<PAGE>   43
                  (C) In the event the Corporation shall at any time after the
Rights Declaration Date (i) declare any dividend on Common Stock payable in
shares of Common Stock, (ii) subdivide the outstanding Common Stock, or (iii)
combine the outstanding Common Stock into a smaller number of shares, then in
each such case the Adjustment Number in effect immediately prior to such event
shall be adjusted by multiplying such Adjustment Number by a fraction the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

                  Section 7. Consolidation, Merger, etc. In case the Corporation
shall enter into any consolidation, merger, combination or other transaction in
which the shares of Common Stock are exchanged for or changed into other stock
or securities, cash and/or any other property, then in any such case the shares
of Series B Junior Participating Preferred Stock shall at the same time be
similarly exchanged or changed in an amount per share (subject to the provision
for adjustment hereinafter set forth) equal to 200 times the aggregate amount of
stock, securities, cash and/or any other property (payable in kind), as the case
may be, into which or for which each share of Common Stock is changed or
exchanged. In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare any dividend on Common Stock payable in shares of
Common Stock, (ii) subdivide the outstanding Common Stock, or (iii) combine the
outstanding Common Stock into a smaller number of shares, then in each such case
the amount set forth in the preceding sentence with respect to the exchange or
change of shares of Series B Junior Participating Preferred Stock shall be
adjusted by multiplying such amount by a fraction the numerator of which is the
number of shares of Common Stock outstanding immediately after such event and
the denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

                  Section 8. No Redemption. The shares of Series B Junior
Participating Preferred Stock shall not be redeemable.

                  Section 9. Ranking. The Series B Junior Participating
Preferred Stock shall rank junior to all other series of the Corporation's
Preferred Stock as to the payment of dividends and the distribution of assets,
unless the terms of any such series shall provide otherwise.

                  Section 10. Amendment. The Restated Certificate of
Incorporation of the Corporation shall not be further amended in any manner
which would materially alter or change the powers, preferences or special rights
of the Series B Junior Participating Preferred Stock so as to affect them
adversely without the affirmative vote of the holders of a majority or more of
the outstanding shares of Series B Junior Participating Preferred Stock, voting
separately as a class.

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



                                       A-7
<PAGE>   44
                  IN WITNESS WHEREOF, we have executed and subscribed this
Certificate and do affirm the foregoing as true under the penalties of perjury
this ____ day of __________, 1997.



                                          _____________________________________
                                          James F. Billett, Jr.
                                          Chairman of the Board, President and
                                          Chief Executive Officer

Attest:


_______________________
Jane T. Wiznitzer
Corporate Secretary


                                       A-8
<PAGE>   45
                                                                       Exhibit B


                          [Form of Rights Certificate]


Certificate No. R-                                               ________ Rights

NOT EXERCISABLE AFTER SEPTEMBER 23, 2007 OR EARLIER IF REDEEMED BY THE COMPANY.
THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE COMPANY, AT $.01 PER
RIGHT ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN
CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING PERSON (AS SUCH TERM IS
DEFINED IN THE RIGHTS AGREEMENT) AND ANY SUBSEQUENT HOLDER OF SUCH RIGHTS MAY
BECOME NULL AND VOID. [THE RIGHTS REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR
WERE BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING PERSON OR AN
AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS ARE DEFINED IN THE
RIGHTS AGREEMENT). ACCORDINGLY, THIS RIGHTS CERTIFICATE AND THE RIGHTS
REPRESENTED HEREBY MAY BECOME NULL AND VOID IN THE CIRCUMSTANCES SPECIFIED IN
SECTION 7(e) OF THE RIGHTS AGREEMENT.](1)

                               Rights Certificate

                               TRENWICK GROUP INC.

                  This certifies that ______________________________________ or
registered assigns, is the registered owner of the number of Rights set forth
above, each of which entitles the owner thereof, subject to the terms,
provisions and conditions of the Rights Agreement, dated as of September 24,
1997 (the "Rights Agreement"), between Trenwick Group Inc., a Delaware
corporation (the "Company"), and First Chicago Trust Company of New York, a New
York corporation (the "Rights Agent"), to purchase from the Company at any time
prior to 5:00 P.M. (New York City time) on September 23, 2007 at the office or
offices of the Rights Agent designated for such purpose, or its successors as
Rights Agent, one two-hundredths of a fully paid, non-assessable share of Series
B Junior Participating Preferred Stock (the "Preferred Stock") of the Company,
at a purchase price of $125 per one two-hundredths of a share (the "Purchase
Price"), upon presentation and surrender of this Rights Certificate with the
Form of Election to Purchase and related Certificate duly executed. The number
of Rights evidenced by this Rights Certificate (and the number of shares which
may be purchased upon exercise thereof) set forth above, and the Purchase Price
per share set forth above, are the number and Purchase Price as of
September 24, 1997, based on the Preferred Stock as constituted at such date.
The Company reserves the right to require prior to the occurrence of a
Triggering Event (as such term

___________________

(1)      The portion of the legend in brackets shall be inserted only if
         applicable and shall replace the preceding sentence.


                                       B-1
<PAGE>   46
is defined in the Rights Agreement) that a number of Rights be exercised so that
only whole shares of Preferred Stock will be issued.

                  Upon the occurrence of a Section 11(a)(ii) Event (as such term
is defined in the Rights Agreement), if the Rights evidenced by this Rights
Certificate are beneficially owned by (i) an Acquiring Person or an Affiliate or
Associate of any such Acquiring Person (as such terms are defined in the Rights
Agreement), (ii) a transferee of any such Acquiring Person, Associate or
Affiliate, or (iii) under certain circumstances specified in the Rights
Agreement, a transferee of a person who, after such transfer, became an
Acquiring Person, or an Affiliate or Associate of an Acquiring Person, such
Rights shall become null and void and no holder hereof shall have any right with
respect to such Rights from and after the occurrence of such Section 11(a)(ii)
Event.

                  As provided in the Rights Agreement, the Purchase Price and
the number and kind of shares of Preferred Stock or other securities, which may
be purchased upon the exercise of the Rights evidenced by this Rights
Certificate are subject to modification and adjustment upon the happening of
certain events, including Triggering Events.

                  This Rights Certificate is subject to all of the terms,
provisions and conditions of the Rights Agreement, which terms, provisions and
conditions are hereby incorporated herein by reference and made a part hereof
and to which Rights Agreement reference is hereby made for a full description of
the rights, limitations of rights, obligations, duties and immunities hereunder
of the Rights Agent, the Company and the holders of the Rights Certificates,
which limitations of rights include the temporary suspension of the
exercisability of such Rights under the specific circumstances set forth in the
Rights Agreement. Copies of the Rights Agreement are on file at the
above-mentioned office of the Rights Agent and are also available upon written
request to the Rights Agent.

                  This Rights Certificate, with or without other Rights
Certificates, upon surrender at the principal office or offices of the Rights
Agent designated for such purpose, may be exchanged for another Rights
Certificate or Rights Certificates of like tenor and date evidencing Rights
entitling the holder to purchase a like aggregate number of one two-hundredths
of a share of Preferred Stock as the Rights evidenced by the Rights Certificate
or Rights Certificates surrendered shall have entitled such holder to purchase.
If this Rights Certificate shall be exercised in part, the holder shall be
entitled to receive upon surrender hereof another Rights Certificate or Rights
Certificates for the number of whole Rights not exercised.

                  Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Certificate may be redeemed by the Company at its option at a
redemption price of $.01 per Right at any time prior to the earlier of the close
of business on (i) the tenth day following the Stock Acquisition Date (as such
time period may be extended pursuant to the Rights Agreement), and (ii) the
Final Expiration Date. The foregoing notwithstanding, the Rights generally may
not be redeemed for one hundred eighty (180) days following a change in a
majority of the Board as a result of a proxy contest.



                                       B-2
<PAGE>   47
                  No fractional shares of Preferred Stock will be issued upon
the exercise of any Right or Rights evidenced hereby (other than, except that
the possible requirement that prior to the occurrence of a Triggering Event only
whole shares of Preferred stock be issued, fractions which are integral
multiples of one two-hundredths of a share of Preferred Stock, which may, at the
election of the Company, be evidenced by depositary receipts), but in lieu
thereof a cash payment will be made, as provided in the Rights Agreement. No
holder of this Rights Certificate shall be entitled to vote or receive dividends
or be deemed for any purpose the holder of shares of Preferred Stock or of any
other securities of the Company which may at any time be issuable on the
exercise hereof, nor shall anything contained in the Rights Agreement or herein
be construed to confer upon the holder hereof, as such, any of the rights of a
stockholder of the Company or any right to vote for the election of directors or
upon any matter submitted to stockholders at any meeting thereof, or to give or
withhold consent to any corporate action, or, to receive notice of meetings or
other actions affecting stockholders (except as provided in the Rights
Agreement), or to receive dividends or subscription rights, or otherwise, until
the Right or Rights evidenced by this Rights Certificate shall have been
exercised as provided in the Rights Agreement.

                  This Rights Certificate shall not be valid or obligatory for
any purpose until it shall have been countersigned by the Rights Agent.

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

Dated as of __________________, 19__

ATTEST:                                             TRENWICK GROUP INC.


____________________________________                By:________________________
            Secretary                               Title:

Countersigned:

FIRST CHICAGO TRUST COMPANY OF NEW YORK


By:________________________________
        Authorized Signature


                                       B-3
<PAGE>   48
                  [Form of Reverse Side of Rights Certificate]

                               FORM OF ASSIGNMENT

                   (To be executed by the registered holder if
            such holder desires to transfer the Rights Certificate.)



FOR VALUE RECEIVED______________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
hereby sells, assigns and transfers unto


________________________________________________________________________________
                  (Please print name and address of transferee)

this Rights Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint ___________________ Attorney,
to transfer the within Rights Certificate on the books of the within-named
Company, with full power of substitution.

Dated: ________________, 19__

                                                        _____________________
                                                        Signature

Signature Guaranteed:




                                       B-4
<PAGE>   49
                                   Certificate

                  The undersigned hereby certifies by checking the appropriate
boxes that:

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

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

Dated: ________________, 19__


                                                      _______________________
                                                      Signature

Signature Guaranteed:


                                       B-5
<PAGE>   50
                                     NOTICE

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


                                       B-6
<PAGE>   51
                          FORM OF ELECTION TO PURCHASE

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


To: TRENWICK GROUP INC.:

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

Please insert social security
or other identifying number


________________________________________________________________________________
                         (Please print name and address)

________________________________________________________________________________

                  If such number of Rights shall not be all the Rights evidenced
by this Rights Certificate a new Rights Certificate for the balance of such
Rights shall be registered in the name of and delivered to:

Please insert social security
or other identifying number

________________________________________________________________________________
                         (Please print name and address)

________________________________________________________________________________

Dated: _____________, 19__

                                             ___________________________________
                                             Signature

Signature Guaranteed:


                                       B-7
<PAGE>   52
                                   Certificate

                  The undersigned hereby certifies by checking the appropriate
boxes that:

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

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

Dated: ________________, 19__


                                                              __________________
                                                              Signature

Signature Guaranteed:


                                     NOTICE

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


                                       B-8
<PAGE>   53
                                                                       Exhibit C


                              SUMMARY OF RIGHTS TO
                            PURCHASE PREFERRED STOCK


                  On July 30, 1997, the Board of Directors of Trenwick Group
Inc. (the "Company") declared a dividend distribution of one Right for each
outstanding share of Company Common Stock to stockholders of record at the close
of business on September 24, 1997 (the "Record Date"). Each Right entitles the
registered holder to purchase from the Company one two-hundredths of a share of
Series B Junior Participating Preferred Stock, par value $.10 per share (the
"Preferred Stock"), at a Purchase Price of $125, subject to adjustment. The
description and terms of the Rights are set forth in a Rights Agreement (the
"Rights Agreement") between the Company and First Chicago Trust Company of New
York, as Rights Agent.

                  Initially, the Rights will be attached to all Common Stock
certificates representing shares then outstanding, and no separate Rights
Certificates will be distributed. The Rights will separate from the Common Stock
and a Distribution Date will occur upon the earlier of (i) ten (10) days
following a public announcement that a person or group of affiliated or
associated persons (an "Acquiring Person") has acquired, or obtained the right
to acquire, beneficial ownership of fifteen percent (15%) or more of the
outstanding shares of Common Stock (the "Stock Acquisition Date"), other than as
a result of repurchases of stock by the Company or certain inadvertent actions
by institutional or certain other stockholders, or (ii) ten (10) business days
(or such later date as the Board shall determine) following the commencement of
a tender offer or exchange offer that would result in a person or group
beneficially owning fifteen percent (15%) or more of such outstanding shares of
Common Stock. Until the Distribution Date, (i) the Rights will be evidenced by
the Common Stock certificates and will be transferred with and only with such
Common Stock certificates, (ii) new Common Stock certificates issued after the
Record Date will contain a notation incorporating the Rights Agreement by
reference and (iii) the surrender for transfer of any certificates for Common
Stock outstanding will also constitute the transfer of the Rights associated
with the Common Stock represented by such certificate. Pursuant to the Rights
Agreement, the Company reserves the right to require prior to the occurrence of
a Triggering Event (as defined below) that, upon any exercise of Rights, a
number of Rights be exercised so that only whole shares of Preferred Stock will
be issued.

                  The Rights are not exercisable until the Distribution Date and
will expire at the close of business on September 23, 2007, unless earlier
redeemed by the Company as described below.

                  As soon as practicable after the Distribution Date, Rights
Certificates will be mailed to holders of record of the Common Stock as of the
close of business on the Distribution Date and, thereafter, the separate Rights
Certificates alone will represent the Rights. Except as


                                       C-1
<PAGE>   54
otherwise determined by the Board, only shares of Common Stock issued prior to
the Distribution Date will be issued with Rights.

                  In the event that a Person becomes an Acquiring Person (except
pursuant to an offer for all outstanding shares of Common Stock which the
independent directors determine not to be inadequate to and otherwise in the
best interests of the Company and its stockholders), each holder of a Right will
thereafter have the right to receive, upon exercise, Common Stock (or, in
certain circumstances, cash, property or other securities of the Company) having
a value equal to two times the exercise price of the Right. Notwithstanding any
of the foregoing, following the occurrence of the event set forth in this
paragraph, all Rights that are, or (under certain circumstances specified in the
Rights Agreement) were, beneficially owned by any Acquiring Person will be null
and void. However, Rights are not exercisable following the occurrence of the
event set forth above until such time as the Rights are no longer redeemable by
the Company as set forth below.

                  For example, at an exercise price of $125 per Right, each
Right not owned by an Acquiring Person (or by certain related parties) following
an event set forth in the preceding paragraph would entitle its holder to
purchase $250 worth of Common Stock (or other consideration, as noted above) for
$125. Assuming that the Common Stock had a per share value of $36.50 at such
time, the holder of each valid Right would be entitled to purchase approximately
6.8 shares of Common Stock for $125.

                  In the event that, at any time following the Stock Acquisition
Date, (i) the Company is acquired in a merger or other business combination
transaction in which the Company is not the surviving corporation (other than a
merger which follows an offer described in the second preceding paragraph), or
(ii) fifty percent (50%) or more of the Company's assets or earning power is
sold or transferred, each holder of a Right (except Rights which previously have
been voided as set forth above) shall thereafter have the right to receive, upon
exercise, common stock of the acquiring company having a value equal to two
times the exercise price of the Right. The events set forth in this paragraph
and in the second preceding paragraph are referred to as the "Triggering
Events."

                  At any time after a person becomes an Acquiring Person and
prior to the acquisition by such person or group of fifty percent (50%) or more
of the outstanding Common Stock, the Board may exchange the Rights (other than
Rights owned by such person or group which have become void), in whole or in
part, at an exchange ratio of one share of Common Stock, or one two-hundredths
of a share of Preferred Stock (or of a share of a class of series of the
Company's preferred stock having equivalent rights, preferences and privileges),
per Right (subject to adjustment).

                  Generally, at any time until ten (10) days following the Stock
Acquisition Date, the Company may redeem the Rights in whole, but not in part,
at a price of $.01 per Right (payable in cash, Common Stock or other
consideration deemed appropriate by the Board). Immediately upon the action of
the Board ordering redemption of the Rights, the Rights will terminate and the
only right of the holders of Rights will be to receive the $.01 redemption
price.


                                       C-2
<PAGE>   55
The foregoing notwithstanding, the Rights generally may not be redeemed for one
hundred eighty (180) days following a change in a majority of the Board as a
result of a proxy contest.

                  Until a Right is exercised, the holder thereof, as such, will
have no rights as a stockholder of the Company, including, without limitation,
the right to vote or to receive dividends. While the distribution of the Rights
will not be taxable to stockholders or to the Company, stockholders may,
depending upon the circumstances, recognize taxable income in the event that the
Rights become exercisable for Common Stock (or other consideration) of the
Company or for common stock of the acquiring company as set forth above.

                  Any of the provisions of the Rights Agreement may be amended
by the Board prior to the Distribution Date. After the Distribution Date, the
provisions of the Rights Agreement may be amended by the Board in order to cure
any ambiguity, to make changes which do not adversely affect the interests of
holders of Rights, or to shorten or lengthen any time period under the Rights
Agreement; provided, however, that no amendment may be made at such time as the
Rights are not redeemable.

                  A copy of the Rights Agreement has been filed with the
Securities and Exchange Commission as an Exhibit to a Current Report on Form
8-K. A copy of the Rights Agreement is available free of charge from the
Company. This summary description of the Rights does not purport to be complete
and is qualified in its entirety by reference to the Rights Agreement, which is
incorporated herein by reference.




                                       C-3


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