SYBASE INC
8-A12G/A, 1996-11-14
PREPACKAGED SOFTWARE
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<PAGE>   1
                                   FORM 8-A/A

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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

                                  SYBASE, INC.
             (Exact name of registrant as specified in its charter)

               DELAWARE                                 94-2941004
(State of incorporation or organization)    (I.R.S. Employer Identification No.)

                              6475 CHRISTIE AVENUE
                          EMERYVILLE, CALIFORNIA 94608
               (Address of principal executive offices) (Zip Code)

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

<TABLE>
<CAPTION>
Title of each class                            Name of each exchange on which
to be so registered                            each class is to be registered
- -------------------                            ------------------------------
<S>                                            <C>
        None                                                None
</TABLE>

         If this Form relates to the registration of a class of debt securities
and is effective upon filing pursuant to General Instruction A.(c)(1), please
check this box. [ ]

         If this Form relates to the registration of a class of debt securities
and is to be effective simultaneously with the effectiveness of a concurrent
registration statement under the Securities Act of 1933 pursuant to General
Instruction A.(c)(2), please check the following box. [ ]

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

                         Preferred Share Purchase Rights
                                (Title of class)
<PAGE>   2
Item 1.           Description of Securities to be Registered.

         The description set forth in Item 1 to the Form 8-A originally filed on
March 4, 1992 is amended and supplemented by the following:

         On January 27, 1994, the Board of Directors of the Company adopted an
amendment to the Rights Agreement to increase the Purchase Price set forth in
Section 7 (b) of the Rights Agreement to $250.00, after giving effect to the
two-for-one stock split of the Company's Common Stock effected in November 1993.

         On August 26, 1996, The Board of Directors of the Company amended the
Rights Agreement to amend the definition of "Acquiring Person" set forth in
Section 1 (a) of the Rights Agreement to read as set forth in Amendment No 2. to
the Rights Agreement filed as Exhibit 3 to this Form 8-A/A.

Item 2.           Exhibits.

                  1.       Preferred Shares Rights Agreement, dated as of March
                           24, 1992, between Sybase, Inc. and The First Bank of
                           Boston, including the Certificate of Designation of
                           Rights, Preferences and Privileges of Series A
                           Participating Preferred Stock attached thereto as
                           Exhibit A, the form of Rights Certificate attached
                           thereto as Exhibit B and the Summary of Rights
                           attached thereto as Exhibit C.

                  2.       Amendment No. 1, dated July 15, 1994 to the Preferred
                           Shares Rights Agreement dated as of March 24, 1992,
                           between Sybase, Inc. and The First National Bank of
                           Boston.

                  3.       Amendment No. 2, dated September 25, 1996 to the
                           Preferred Shares Rights Agreement dated as of March
                           24, 1992 between Sybase, Inc. and The First
                           National Bank of Boston.


                                        2
<PAGE>   3
                                    SIGNATURE

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

Date:    November 14, 1996                 SYBASE, INC.
                     
                                   By:      /s/ Mitchell Gaynor
                                            ------------------------------------
                                            Mitchell Gaynor, Vice President and
                                            Associate General Counsel


                                        3
<PAGE>   4
                                   FORM 8-A/A

                                  SYBASE, INC.

                                  EXHIBIT INDEX

                                                        Page Number Under
                                                       Sequential Numbering
Exhibits No.                Exhibit                           System
- ------------                -------                    --------------------
        1          Preferred Shares Rights                     5
                   Agreement dated as of
                   March 24, 1992 between
                   Registrant and the First
                   National Bank of Boston

        2          Amendment No. 1 to                          60
                   the Preferred  Shares
                   Rights Agreement dated
                   as of July 15, 1994 between
                   Registrant and The First
                   National Bank of Boston

        3          Amendment No. 2 to                          63
                   the Preferred  Shares
                   Rights Agreement dated
                   as of September 25, 1996
                   between Registrant and The
                   First National Bank of Boston



                                        4

<PAGE>   1
                                    EXHIBIT 1

                                  SYBASE, INC.

                                       and

                        THE FIRST NATIONAL BANK OF BOSTON

                                  Rights Agent

                        PREFERRED SHARES RIGHTS AGREEMENT

                           Dated as of March 24, 1992
<PAGE>   2
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                  Page
<S>                                                                                               <C>
Section 1.   Certain Definitions................................................................    1

Section 2.   Appointment of Rights Agent........................................................    5

Section 3.   Issuance of Rights Certificates....................................................    5

Section 4.   Form of Rights Certificates........................................................    7

Section 5.   Countersignature and Registration..................................................    8

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

Section 7.   Exercise of Rights; Purchase Price; Expiration Date of Rights......................    9

Section 8.   Cancellation and Destruction of Rights Certificates................................   10

Section 9.   Reservation and Availability of Preferred Shares...................................   11

Section 10.  Preferred Shares Record Date.......................................................   12

Section 11.  Adjustment of Purchase Price, Number of Shares or Number of Rights.................   12

Section 12.  Certificate of Adjusted Purchase Price or Number of Shares.........................   20

Section 13.  Consolidation, Merger or Sale or Transfer of Assets or Earning Power...............   20

Section 14.  Fractional Rights and Fractional Shares............................................   23

Section 15.  Rights of Action...................................................................   24

Section 16.  Agreement of Rights Holders........................................................   24

Section 17.  Rights Certificate Holder Not Deemed a Stockholder.................................   24

Section 18.  Concerning the Rights Agent........................................................   25

Section 19.  Merger or Consolidation or Change of Name of Rights Agent..........................   25
</TABLE>


                                       -i-
<PAGE>   3
                                TABLE OF CONTENTS

                                   (continued)

<TABLE>
<CAPTION>
                                                                                                  Page
<S>                                                                                               <C>
Section 20.  Duties of Rights Agent.............................................................   26

Section 21.  Change of Rights Agent.............................................................   28

Section 22.  Issuance of New Rights Certificates................................................   28

Section 23.  Redemption.........................................................................   29

Section 24.  Exchange...........................................................................   30

Section 25.  Notice of Certain Events...........................................................   32

Section 26.  Notices............................................................................   32

Section 27.  Supplements and Amendments.........................................................   33

Section 28.  Successors.........................................................................   33

Section 29.  Determinations and Actions by the Board of Directors, etc..........................   33

Section 30.  Benefits of this Agreement.........................................................   34

Section 31.  Severability.......................................................................   34

Section 32.  Governing Law......................................................................   34

Section 33.  Counterparts.......................................................................   34

Section 34.  Descriptive Headings...............................................................   34
</TABLE>

EXHIBITS

Exhibit A    Form of Certificate of Designation

Exhibit B    Form of Rights Certificate

Exhibit C    Summary of Rights


                                      -ii-
<PAGE>   4
                                RIGHTS AGREEMENT

      Agreement, dated as of March 24, 1992, between Sybase, Inc., a Delaware
corporation (the "Company"), and The First National Bank of Boston, a national
banking association (the "Rights Agent").

      On March 24, 1992 (the "Rights Dividend Declaration Date"), the Board of
Directors of the Company authorized and declared a dividend of one Preferred
Share purchase right (a "Right") for each Common Share (as hereinafter defined)
of the Company outstanding as of the Close of Business (as hereinafter defined)
on April 10, 1992 (the "Record Date"), each Right representing the right to
purchase one one-thousandth of a share of Series A Participating Preferred Stock
(as such number may be adjusted pursuant to the provisions of this Agreement),
having the rights, preferences and privileges set forth in the form of
Certificate of Designation of Rights, Preferences and Privileges of Series A
Participating Preferred Stock attached hereto as Exhibit A, upon the terms and
subject to the conditions herein set forth, and further authorized and directed
the issuance of one Right (as such number may be adjusted pursuant to the
provisions of this Agreement) with respect to each Common Share that shall
become outstanding between the Record Date and the earlier of the Distribution
Date and the Expiration Date (as such terms are hereinafter defined), and in
certain circumstances after the Distribution Date.

      NOW, THEREFORE, in consideration of the promises 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 15% or more of the Common Shares then outstanding, but shall
not include the Company, any Subsidiary of the Company or any employee benefit
plan of the Company or of any Subsidiary of the Company, or any entity holding
Common Shares for or pursuant to the terms of any such plan. Notwithstanding the
foregoing, no Person shall be deemed to be an Acquiring Person either (i) if
within eight days after such Person would otherwise become an Acquiring Person
(but for the operation of this clause (i)), such Person notifies the Board of
Directors that such Person did so inadvertently and within two days after such
notification, such Person is the Beneficial Owner of less than 15% of the
outstanding Common Shares, or (ii) as the result of an acquisition of Common
Shares by the Company which, by reducing the number of shares outstanding,
increases the proportionate number of shares beneficially owned by such Person
to 15% or more of the Common Shares of the Company then outstanding; provided,
however, that if a Person shall become the Beneficial Owner of 15% or more of
the Common Shares of the Company then outstanding by reason of share purchases
by the Company and shall, after such share purchases by the Company, become the
Beneficial Owner of any additional Common Shares of the Company, then such
Person shall be deemed to be an Acquiring Person. Notwithstanding the foregoing,
Lotus Development Corporation ("Lotus") shall not be considered an "Acquiring
Person" as a result of being, at any date, the Beneficial Owner of that number
of Common Shares which it is permitted or required to purchase on or before such
date in accordance with the provisions of the Stock Purchase Agreement dated as
of September 21, 1989 between the Company and Lotus (the "Lotus Purchase
Agreement"); provided, however, that if after the
<PAGE>   5
date hereof, (i) Lotus shall become the Beneficial Owner of any Common Shares in
excess of that number of Common Shares which it is permitted or required to
purchase in accordance with the provisions of the Lotus Purchase Agreement, (ii)
the Lotus Purchase Agreement shall be terminated in accordance with its terms,
by mutual agreement between Lotus and the Company or otherwise or (iii) the
provisions of Section 8.1.1 or 8.1.2 of the Lotus Purchase Agreement shall come
into effect so as to release Lotus from the ownership limitations set forth in
Section 8.1, then if Lotus would otherwise be an Acquiring Person, it shall be
deemed to be an Acquiring Person and all Common Shares then beneficially owned
by Lotus shall be counted for purposes of determining whether Lotus is an
Acquiring Person.

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

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

                       (i) which such Person or any of such Person's Affiliates
or Associates beneficially owns, directly or indirectly, for purposes of Section
13(d) of the Exchange Act and Rule 13d-3 thereunder (or any comparable or
successor law or regulation);

                       (ii) which such Person or any of such Person's Affiliates
or Associates has (A) the right to acquire (whether such right is exercisable
immediately or only after the passage of time) pursuant to any agreement,
arrangement or understanding (other than customary agreements with and between
underwriters and selling group members with respect to a bona fide public
offering of securities), or upon the exercise of conversion rights, exchange
rights, rights (other than the Rights), warrants or options, or otherwise;
provided, however, that a Person shall not be deemed pursuant to this Section 1
(c) (ii) (A) the Beneficial Owner of, or to beneficially own, (1) securities
tendered pursuant to a tender or exchange offer made by or on behalf of such
Person or any of such Person's Affiliates or Associates until such tendered
securities are accepted for purchase or exchange, or (2) securities which a
Person or any of such Person's Affiliates or Associates may be deemed to have
the right to acquire pursuant to any merger or other acquisition agreement
between the Company and such Person (or one or more of its Affiliates or
Associates) if such agreement has been approved by the Board of Directors of the
Company prior to there being an Acquiring Person; or (B) the right to vote
pursuant to any agreement, arrangement or understanding; provided, however, that
a Person shall not be deemed the Beneficial Owner of, or to beneficially own,
any security under this Section 1 (c) (ii) (B) if the agreement, arrangement or
understanding to vote such security (1) arises solely from a revocable proxy or
consent given to such Person in response to a public proxy or consent
solicitation made pursuant to, and in accordance with, the applicable rules and
regulations of the Exchange Act and (2) is not also then reportable on Schedule
13D under the Exchange Act (or any comparable or successor report); or

                       (iii) which are beneficially owned, directly or
indirectly, by any other Person (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) (other than
customary agreements with and between underwriters and selling group members
with respect to a bona fide public

                                      -2-
<PAGE>   6
offering of securities) for the purpose of acquiring, holding, voting (except to
the extent contemplated by the proviso to Section 1 (c) (ii) (B)) or disposing
of any securities of the Company; provided, however, that in no case shall an
officer or director of the Company be deemed (x) the Beneficial Owner of any
securities beneficially owned by another officer or director of the Company
solely by reason of actions undertaken by such persons in their capacity as
officers or directors of the Company or (y) the Beneficial Owner of securities
held of record by the trustee of any employee benefit plan of the Company or any
Subsidiary of the Company for the benefit of any employee of the Company or any
Subsidiary of the Company, other than the officer or director, by reason of any
influence that such officer or director may have over the voting of the
securities held in the plan.

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

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

               (f) "Common Shares" when used with reference to the Company shall
mean the shares of Common Stock of the Company, $.001 par value. "Common Shares"
when used with reference to any Person other than the Company shall mean the
capital stock (or equity interest) with the greatest voting power of such other
Person or, if such other Person is a Subsidiary of another Person, the Person or
Persons which ultimately control such first-mentioned Person.

               (g) "Continuing Director" shall mean (i) any member of the Board
of Directors of the Company, while a member of the Board, who is not an
Acquiring Person, or an Affiliate or Associate of an Acquiring Person, or a
representative of an Acquiring Person or of any such Affiliate or Associate, and
who was a member of the Board prior to the date of this Agreement, or (ii) any
Person who subsequently becomes a member of the Board, while a member of the
Board, who is not an Acquiring Person, or an Affiliate or Associate of an
Acquiring Person, or a representative of an Acquiring Person or of any such
Affiliate or Associate, if such Person's nomination for election or election to
the Board is recommended or approved by a majority of the Continuing Directors.

               (h) "Distribution Date" shall mean the earlier of (i) the Close
of Business on the tenth day (or such later date as may be determined by action
of a majority of Continuing Directors then in office) after the Shares
Acquisition Date (or, if the tenth day after the Shares Acquisition Date occurs
before the Record Date, the Close of Business on the Record Date) or (ii) the
Close of Business on the tenth day (or such later date as may be determined by
action of a majority of Continuing Directors then in office) after the date that
a tender or exchange offer by any Person (other than the Company, any Subsidiary
of the Company, any employee benefit plan of the Company or of any Subsidiary of
the Company, or any 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, assuming the successful consummation
thereof, such Person would be the Beneficial Owner of 15% or more of the shares
of Common Stock then outstanding.

                                      -3-
<PAGE>   7
               (i) "Equivalent Shares" shall mean Preferred Shares and any other
class or series of capital stock of the Company which is entitled to participate
in dividends and other distributions, including distributions upon the
liquidation, dissolution or winding up of the Company, on a proportional basis
with the Common Shares. In calculating the number of any class or series of
Equivalent Shares for purposes of Section 11 of this Rights Agreement, the
number of shares, or fractions of a share, of such class or series of capital
stock that is entitled to the same dividend or distribution as a whole Common
Share shall be deemed to be one share.

               (j) "Expiration Date" shall mean the earliest of (i) the Close of
Business on the Final Expiration Date, (ii) the Redemption Date, (iii) the time
at which the Board of Directors orders the exchange of the Rights as provided in
Section 24 hereof or (iv) the consummation of a transaction contemplated by
Section 13(d) hereof.

               (k) "Final Expiration Date" shall mean March 24, 2002.

               (l) "Permitted Offer" shall mean a tender offer for all
outstanding Common Shares made in the manner prescribed by Section 14(d) of the
Exchange Act and the rules and regulations promulgated thereunder; provided,
however, that such tender offer occurs at a time when Continuing Directors are
in office and a majority of the Continuing Directors then in office has
determined that the offer is both adequate and otherwise in the best interests
of the Company and its stockholders (taking into account all factors that such
Continuing Directors deem relevant, including without limitation prices that
could reasonably be achieved if the Company or its assets were sold on an
orderly basis designed to realize maximum value).

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

               (n) "Preferred Shares" shall mean shares of Series A
Participating Preferred Stock of the Company.

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

               (p) "Record Date" shall have the meaning set forth in the
recitals at the beginning of this Agreement.

               (q) "Redemption Date" shall mean the time at which the Board of
Directors of the Company orders redemption of the Rights as provided in Section
23 hereof.

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

               (s) "Rights Dividend Declaration Date" shall have the meaning set
forth in the recitals at the beginning of this Agreement.

                                      -4-
<PAGE>   8
               (t) "Section 13 Event" shall mean any event described in clause
(i), (ii) or (iii) of Section 13(a) hereof.

               (u) "Shares Acquisition Date" shall mean the first date of public
announcement (which, for purposes of this definition, shall include, without
limitation, a report filed pursuant to Section 13(d) under the Exchange Act) by
the Company or an Acquiring Person that an Acquiring Person has become such;
provided that, if such Person is determined not to have become an Acquiring
Person pursuant to Section 1(a)(ii) hereof, then no Shares Acquisition Date
shall be deemed to have occurred.

               (v) "Subsidiary" of any Person shall mean any corporation or
other entity of which an amount of voting securities sufficient to elect a
majority of the directors or Persons having similar authority of such
corporation or other entity is beneficially owned, directly or indirectly, by
such Person, or any corporation or other entity otherwise controlled by such
Person.

               (w) "Total Exercise Price" shall have the meaning set forth in
Section 4(a) hereof.

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

               (y) A "Triggering Event" shall be deemed to have occurred upon
any Person (other than the Company, any Subsidiary of the Company, any employee
benefit plan of the Company or any Subsidiary of the Company, or any entity
holding Common Shares for or pursuant to the terms of any such plan), together
with all Affiliates and Associates of such Person, becoming an Acquiring Person.

      Section 2. Appointment of Rights Agent. The Company hereby appoints the
Rights Agent to act as agent for the Company and the holders of the Rights (who,
in accordance with Section 3 hereof, shall prior to the Distribution Date also
be the holders of the Common Shares) in accordance with the terms and conditions
hereof, and the Rights Agent hereby accepts such appointment. The Company may
from time to time appoint such co-Rights Agents as it may deem necessary or
desirable.

      Section 3.  Issuance of Rights Certificates.

               (a) Until the Distribution Date, (i) the Rights will be evidenced
(subject to the provisions of Sections 3(b) and 3(c) hereof) by the certificates
for Common Shares registered in the names of the holders thereof (which
certificates shall also be deemed to be Rights Certificates) and not by separate
Rights Certificates and (ii) the right to receive Rights Certificates will be
transferable only in connection with the transfer of Common Shares. Until the
earlier of the Distribution Date or the Expiration Date, the surrender for
transfer of such certificates for Common Shares shall also constitute the
surrender for transfer of the Rights associated with the Common Shares
represented thereby. As soon as practicable after the Distribution Date, the
Company will prepare and execute, the Rights Agent will countersign, and the
Company will send or cause to be sent (and the Rights Agent will, if requested,
send) by first-class, postage-prepaid mail, to each record holder of Common
Shares as of the close of business on the Distribution Date, at the address of
such holder shown on the records of the Company, a Rights Certificate, in
substantially the form of Exhibit B hereto (a "Rights Certificate"), evidencing
one Right for each Common Share so held, subject to adjustment as provided
herein. In the event that an


                                      -5-
<PAGE>   9
adjustment in the number of Rights per Common Share has been made pursuant to
Section 11(a)(i), Section 11(i) or Section 11(p) hereof, then at the time of
distribution of the Rights Certificates, the Company shall either (A) round up
the fractional Right to which any holder would otherwise be entitled (after
aggregation of all fractional Rights to which any one holder would otherwise be
entitled) to the next higher whole Right or (B) round down such fractional Right
to the next lower whole number and pay cash in lieu of such Right in accordance
with Section 14(a) hereof. As of the Distribution Date, the Rights, will be
evidenced solely by such Rights Certificates and may be transferred by the
transfer of the Rights Certificates as permitted hereby, separately and apart
from any transfer of one or more Common Shares, and the holders of such Rights
Certificates as listed in the records of the Company or any transfer agent or
registrar for the Rights shall be the record holders thereof.

               (b) On the Record Date or as soon as practicable thereafter, the
Company will send a copy of a Summary of Rights in substantially the form of
Exhibit C hereto (the "Summary of Rights"), by first-class, postage-prepaid
mail, to each record holder of Common Shares as of the close of business on the
Record Date, at the address of such holder shown on the records of the Company.

               (c) Unless the Board of Directors by resolution adopted at or
before the time of the issuance (including pursuant to the exercise of rights
under the Company's benefit plans) of any Common Shares specifies to the
contrary, Rights shall be issued in respect of all Common Shares that are issued
after the Record Date but prior to the earlier of the Distribution Date or the
Expiration Date or, in certain circumstances provided in Section 22 hereof,
after the Distribution Date. Certificates representing such Common Shares shall
also be deemed to be certificates for Rights, and shall bear the following
legend:

      This certificate also evidences and entitles the holder hereof to certain
      rights as set forth in a Rights Agreement between Sybase, Inc. and The
      First National Bank of Boston as the Rights Agent, dated as of March 24,
      1992 as such agreement may be amended from time to time in accordance with
      its terms (the "Rights Agreement"), the terms of which are hereby
      incorporated herein by reference and a copy of which is on file at the
      principal executive offices of Sybase, Inc. Under certain circumstances,
      as set forth in the Rights Agreement, such Rights will be evidenced by
      separate certificates and will no longer be evidenced by this certificate.
      Sybase, Inc. will mail to the holder of this certificate a copy of the
      Rights Agreement without charge after receipt of a written request
      therefor. Under certain circumstances 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, until the
earlier of (i) the Distribution Date or (ii) the Expiration Date, the Rights
associated with the Common Shares represented by such certificates shall be
evidenced by such certificates alone, and the surrender for transfer of any such
certificate shall also constitute the transfer of the Rights associated with the
Common Shares represented thereby. In the event that the Company purchases or
acquires any Common Shares after the Record Date but prior to the Distribution
Date, any Rights associated with such Common Shares shall be deemed cancelled
and retired so that the Company shall not be entitled to exercise any Rights
associated with the Common Shares which are no longer outstanding.

                                      -6-
<PAGE>   10
      Section 4.  Form of Rights Certificates.

               (a) The Rights Certificates (and the forms of election to
purchase Common Shares and of assignment to be printed on the reverse thereof)
shall be substantially in the form of Exhibit A 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 (or in the case of Rights issued with respect to
Common Shares issued by the Company after the Record Date, as of the date of
issuance of such Common Shares) and on their face shall entitle the holders
thereof to purchase such number of one-thousandths of a Preferred Share as shall
be set forth therein at the price set forth therein (such exercise price per one
one-thousandth of a Preferred Share being hereinafter referred to as the
"Purchase Price" and the aggregate exercise price of all Preferred Shares
issuable upon exercise of one Right being hereinafter referred to as the "Total
Exercise Price"), but the number and type of securities purchasable upon the
exercise of each Right and the Purchase Price shall be subject to adjustment as
provided herein.

               (b) Any Rights Certificate issued pursuant to Section 3(a) or
Section 22 hereof that represents Rights beneficially owned by: (i) an Acquiring
Person or any Associate or Affiliate of an Acquiring Person, (ii) a transferee
of an Acquiring Person (or 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 such Acquiring Person has any
continuing agreement, arrangement or understanding regarding the transferred
Rights or (B) a transfer which the Board of Directors of the Company 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.


                                       -7-
<PAGE>   11
      Section 5.  Countersignature and Registration.

               (a) The Rights Certificates shall be executed on behalf of the
Company by its Chairman of the Board, its Chief Executive Officer, its President
or any Vice President, either manually or by facsimile signature, and by the
Secretary or an Assistant Secretary of the Company, either manually or by
facsimile signature, and shall have affixed thereto the Company's seal (if any)
or a facsimile thereof. The Rights Certificates shall be manually countersigned
by the Rights Agent and shall not be valid for any purpose unless countersigned.
In case any officer of the Company who shall have signed any of the 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 Certificate 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 office designated for such purposes, 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.

      Section 6. Transfer, Split Up, Combination and Exchange of Rights
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.

               (a) Subject to the provisions of Sections 7(e), 14 and 24 hereof,
at any time after the Close of Business on the Distribution Date, and at or
prior to the Close of Business on the Expiration Date, any Rights Certificate or
Rights Certificates may be transferred, split up, combined or exchanged for
another Rights Certificate or Rights Certificates, entitling the registered
holder to purchase a like number of one-thousandths of a Preferred Share (or,
following a Triggering Event, other securities, cash or other assets, as the
case may be) as the Rights Certificate or Rights Certificates surrendered then
entitled such holder to purchase. Any registered holder desiring to transfer,
split up, combine or exchange any Rights Certificate or Rights Certificates
shall make such request in writing delivered to the Rights Agent, and shall
surrender the Rights Certificate or Rights Certificates to be transferred, split
up, combined or exchanged at the office of the Rights Agent designated for such
purpose. Neither the Rights Agent nor the Company shall be obligated to take any
action whatsoever with respect to the transfer of any such surrendered 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 Sections 7(e), 14 and 24 hereof, countersign and deliver
to the person entitled thereto a Rights Certificate or Rights Certificates, as
the case may be, as so requested. The


                                       -8-
<PAGE>   12
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 reasonably satisfactory to them, and, at the Company's request,
reimbursement to the Company and the Rights Agent of all reasonable expenses
incidental thereto, and upon surrender to the Rights Agent and cancellation of
the Rights Certificate if mutilated, the Company will make and deliver a new
Rights Certificate of like tenor to the Rights Agent for delivery to the
registered holder 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) 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 on the reverse side thereof duly executed, to the Rights
Agent at the office of the Rights Agent designated for such purpose, together
with payment of the Purchase Price for each one-thousandth of a Preferred Share
as to which the Rights are exercised, at or prior to the Expiration Date.

               (b) The Purchase Price for each one-thousandth of a Preferred
Share issuable pursuant to the exercise of a Right shall initially be $125.00,
shall be subject to adjustment from time to time as provided in Sections 11 and
13 hereof and shall be payable in lawful money of the United States of America
in accordance with paragraph (c) below.

               (c) Upon receipt of a Rights Certificate representing exercisable
Rights, with the form of election to purchase duly executed, accompanied by
payment of the Purchase Price for the number of one-thousandths of a Preferred
Share (or other securities or property, as the case may be) to be purchased and
an amount equal to any applicable transfer tax required to be paid by the holder
of such Rights Certificate in accordance with Section 9 hereof in cash, or by
certified check or cashier's check payable to the order of the Company, the
Rights Agent shall, subject to Section 20(k) hereof, thereupon promptly (i) (A)
requisition from any transfer agent of the Preferred Shares (or make available,
if the Rights Agent is the transfer agent for the Preferred Shares) a
certificate or certificates for the number of one-thousandths of a Preferred
Share 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 one-thousandths of a Preferred Share issuable
upon exercise of the Rights hereunder with a depositary agent, requisition from
the depositary agent of depositary receipts representing such number of
one-thousandths of a Preferred Share as are to be purchased (in which case
certificates for the Preferred Shares represented by such receipts shall be
deposited by the transfer agent with the depositary agent) and the Company
hereby directs the depositary agent to comply with such request, (ii) when
appropriate, requisition from the Company the amount of cash to be paid in lieu
of issuance of fractional shares in accordance with Section 14 hereof, (iii)
after receipt of such certificates 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) when appropriate, after


                                       -9-
<PAGE>   13
receipt thereof, deliver such cash 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 (including to zero) pursuant to Section 11 (a) (iv) hereof) may
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 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.

               (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 to the registered holder of such Rights Certificate or to
his or her duly authorized assigns, subject to the provisions of Section 14
hereof.

               (e) Notwithstanding anything in this Agreement to the contrary,
from and after the first occurrence of a Triggering Event or a Section 13 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 (a "Post Transferee"), (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 of Directors of the Company 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) (a "Prior Transferee") or (iv) any subsequent
transferee receiving transferred Rights from a Post Transferee or a Prior
Transferee, either directly or through one or more intermediate transferees,
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 to any other Person as a result of its failure to make
any determinations with respect to an Acquiring Person or any of such Acquiring
Person's 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 to any of its
agents, be delivered to the Rights Agent for cancellation or in cancelled form,



                                      -10-
<PAGE>   14
or, if surrendered to the Rights Agent, shall be cancelled 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
cancelled Rights Certificates to the Company, or shall, at the written request
of the Company, destroy such cancelled Rights Certificates, and in such case
shall deliver a certificate of destruction thereof to the Company.

      Section 9.  Reservation and Availability of Preferred Shares.

               (a) The Company covenants and agrees that it will use its best
efforts to cause to be reserved and kept available out of and to the extent of
its authorized and unissued shares of Preferred Stock not reserved for another
purpose (and, following the occurrence of a Triggering Event, out of its
authorized and unissued shares of Common Stock and/or other securities), the
number of Preferred Shares (and, following the occurrence of the Triggering
Event, Common Stock and/or other securities) that will be sufficient to permit
the exercise in full of all outstanding Rights.

               (b) If the Company shall hereafter list any of its Preferred
Shares on a national securities exchange, then so long as the Preferred Shares
(and, following the occurrence of a Triggering Event, Common Shares and/or other
securities) issuable and deliverable upon exercise of the Rights may be listed
on a national securities exchange, the Company shall use its best efforts to
cause, from and after such time as the Rights become exercisable (but only to
the extent that it is reasonably likely that the Rights will be exercised), 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
Triggering Event in which the consideration to be delivered by the Company upon
exercise of the Rights has been determined in accordance with Section 11 (a)
(iv) hereof, or as soon as is required by law following the Distribution Date,
as the case may be, a registration statement under the Securities Act of 1933,
as amended (the "Securities Act"), with respect to the securities purchasable
upon exercise of the Rights on an appropriate form, (ii) cause such registration
statement to become effective as soon as practicable after such filing and (iii)
cause such registration statement to remain effective (with a prospectus at all
times meeting the requirements of the Securities Act) until the earlier of (A)
the date as of which the Rights are no longer exercisable for such securities
and (B) the date of expiration of the Rights. The Company may temporarily
suspend, for a period 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, and notify the Rights Agent, that the exercisability of
the Rights has been temporarily suspended, as well as a public announcement and
notification to the Rights Agent at such time as the suspension is no longer in
effect. 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. Notwithstanding any
provision of this Agreement to the contrary, the Rights shall not be


                                      -11-
<PAGE>   15
exercisable in any jurisdiction, unless the requisite qualification in such
jurisdiction shall have been obtained, or an exemption therefrom shall be
available, and until a registration statement has been declared effective.

               (d) The Company covenants and agrees that it will take all such
action as may be necessary to ensure that all Preferred Shares delivered upon
exercise of Rights shall, at the time of delivery of the certificates for such
Preferred Shares (subject to payment of the Purchase Price), be duly and validly
authorized and issued and fully paid and nonassessable shares.

               (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 original issuance or delivery of the
Rights Certificates or of any Preferred Shares 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 certificates or depositary
receipts for the Preferred Shares in a name other than that of, the registered
holder of the Rights Certificate evidencing Rights surrendered for exercise or
to issue or to deliver any certificates or depositary receipts for Preferred
Shares upon the exercise of any Rights until any 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 Shares Record Date. Each person in whose name any
certificate for a number of one-thousandths of a Preferred Share is issued upon
the exercise of Rights shall for all purposes be deemed to have become the
holder of record of Preferred Shares 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
multiplied by the number of one-thousandths of a Preferred Share with respect to
which the Rights have been exercised (and any applicable transfer taxes) was
made; provided, however, that if the date of such surrender and payment is a
date upon which the Preferred Shares transfer books of the Company are closed,
such person shall be deemed to have become the record holder of such shares on,
and such certificate shall be dated, the next succeeding Business Day on which
the Preferred Shares 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 holder of Preferred 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 of Shares or Number of
Rights. The Purchase Price, the number and kind of shares or other property
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 Common Shares payable in Common
Shares, (B) subdivide the outstanding Common Shares, (C) combine the outstanding
Common Shares (by reverse stock split or otherwise) into a smaller number of
Common Shares, or (D) issue any shares of its capital stock in a
reclassification of


                                      -12-
<PAGE>   16
the Common Shares (including any such reclassification in connection with a
consolidation or merger in which the Company is the continuing or surviving
corporation), then, in each such event, except as otherwise provided in this
Section 11(a) and Section 7(e) hereof: (1) each of the Rights outstanding at the
time of the record date for such dividend or the effective date of such
subdivision, combination or reclassification shall be proportionately adjusted
to that number of Rights (calculated to the nearest one ten-thousandth
(1/10,000) of a Right) equal to a fraction (the "Exchange Ratio"), the numerator
of which shall be the total number of Common Shares or shares of capital stock
issued in such reclassification of the Common Shares outstanding immediately
following such time and the denominator of which shall be the total number of
Common Shares outstanding immediately prior to such time, and the number of
Rights that shall thereafter be issued with respect to each Common Share or
share of such other capital stock that shall become outstanding thereafter prior
to the Distribution Date shall be equal to the total number of outstanding
Rights immediately after such event (as adjusted pursuant to this clause (1))
divided by the total number of outstanding Common Shares or shares of such other
capital stock immediately after such event (subject to further adjustment
pursuant to the provisions of this Agreement); (2) 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 shall be adjusted so that the
Purchase Price thereafter shall equal the result obtained by dividing the
Purchase Price in effect immediately prior to such time by the Exchange Ratio;
provided, however, that in no event shall the consideration to be paid upon the
exercise of one Right be less than the aggregate par value of the shares of
capital stock of the Company issuable upon exercise of such Right; and (3) the
number of Common Shares or shares of such other capital stock issuable upon the
exercise of each Right shall remain unchanged immediately after such event, but,
in the event of a reclassification, the kind of shares issuable upon the
exercise of each Right immediately after such reclassification shall be adjusted
to be the kind of shares of such other capital stock issued in such
reclassification, rather than Common Shares. 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) Subject to Section 24 of this Agreement, in the
event a Triggering Event shall have occurred, then promptly following such
Triggering Event, proper provision shall be made so that each holder of a Right,
except as provided in Section 7(e) hereof, shall thereafter have the right to
receive for each Right, upon exercise thereof in accordance with the terms of
this Agreement and payment of the then-current Total Exercise Price, in lieu of
a number of one-thousandths of a Preferred Share, such number of Common Shares
of the Company as shall equal the result obtained by multiplying the
then-current Purchase Price by the number at that time of one-thousandths of a
Preferred Share for which a Right was exercisable (or would have been
exercisable if the Distribution Date had occurred) immediately prior to the
first occurrence of a Triggering Event, and dividing that product by 50% of the
current per share market price (determined pursuant to Section 11(d) hereof) for
Common Shares on the date of occurrence of the Triggering Event (such number of
shares being hereinafter referred to as the "Adjustment Shares").


                                      -13-
<PAGE>   17
                       (iii) The right to buy Common Shares of the Company
pursuant to Section 11 (a) (ii) hereof shall not arise as a result of any Person
becoming an Acquiring Person through an acquisition of Common Shares pursuant to
a Permitted Offer.

                       (iv) In lieu of issuing Common Shares in accordance with
Section 11 (a) (ii) hereof, the Company may, if the Board of Directors
determines that such action is necessary or appropriate and not contrary to the
interest of holders of Rights (and, in the event that the number of Common
Shares 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,
or if any necessary regulatory approval for such issuance has not been obtained
by the Company, the Company shall): (A) determine the excess of (1) the value of
the Common Shares issuable upon the exercise of a Right (the "Current Value")
over (2) the Purchase Price (such excess, the "Spread") and (B) with respect to
each Right, make adequate provision to substitute for such Common Shares, upon
exercise of the Rights, (1) cash, (2) a reduction in the Purchase Price, (3)
other equity securities of the Company (including, without limitation, shares or
units of shares of any series of Preferred Stock which the Board of Directors of
the Company has deemed to have the same value as Common Shares (such shares or
units of shares of Preferred Stock are herein called "common stock
equivalents")), except to the extent that the Company has not obtained any
necessary stockholder or regulatory approval for such issuance, (4) debt
securities of the Company, except to the extent that the Company has not
obtained any necessary stockholder or regulatory approval for such issuance, (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 of Directors of the Company based upon the advice of a nationally
recognized investment banking firm selected by the Board of Directors of the
Company; provided, however, if the Company shall not have made adequate
provision to deliver value pursuant to clause (B) above within thirty (30) days
following the later of (x) the first occurrence of a Triggering 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 as 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, Common Shares (to the extent available), except to the extent
that the Company has not obtained any necessary stockholder or regulatory
approval for such issuance, and then, if necessary, cash, which shares and/or
cash have an aggregate value equal to the Spread. If the Board of Directors of
the Company shall determine in good faith that it is likely that sufficient
additional Common Shares could be authorized for issuance upon exercise in full
of the Rights or that any necessary regulatory approval for such issuance will
be obtained, 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 or take action to obtain such
regulatory approval (such period, as it may be extended, the "Substitution
Period"). To the extent that the Company determines that some action need be
taken pursuant to the first and/or second sentences of this Section 11 (a) (iv),
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 any authorization of additional shares, to take any action to
obtain any required regulatory approval and/or to decide the appropriate form of
distribution to be made pursuant to such first sentence and to determine


                                      -14-
<PAGE>   18
the value thereof. In the event of any such suspension, the Company shall issue
a public announcement stating that the exercisability of the Rights has been
temporarily suspended, as well as a public announcement at such time as the
suspension is no longer in effect. For purposes of this Section 11 (a) (iv), the
value of the Common Shares shall be the current per share market price (as
determined pursuant to Section 11(d) hereof) of the Common Shares on the
Section 11 (a) (ii) Trigger Date and the value of any "common stock equivalent"
shall be deemed to have the same value as the Common Shares on such date.

               (b) In case the Company shall, at any time after the date of this
Agreement, fix a record date for the issuance of rights, options or warrants to
all holders of Common Shares or of any class or series of Equivalent Shares
entitling such holders (for a period expiring within forty-five (45) calendar
days after such record date) to subscribe for or purchase Common Shares or
Equivalent Shares or securities convertible into Common Shares or Equivalent
Shares at a price per share (or having a conversion price per share, if a
security convertible into Common Shares or Equivalent Shares) less than the then
current per share market price of the Common Shares or Equivalent Shares (as
defined in Section 11(d)) on such record date, then, in each such case, 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 Common Shares and
Equivalent Shares (if any) outstanding on such record date, plus the number of
Common Shares or Equivalent Shares, as the case may be, which the aggregate
offering price of the total number of Common Shares or Equivalent Shares, as the
case may be, 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 Common Shares
and Equivalent Shares (if any) outstanding on such record date, plus the number
of additional Common Shares or Equivalent Shares, as the case may be, 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 in a consideration part or all of which shall be in a form other than
cash, the value of such consideration shall be as determined in good faith by
the Board of Directors of the Company, whose determination shall be described in
a statement filed with the Rights Agent and shall be binding on the Rights Agent
and the holders of the Rights. Common Shares and Equivalent Shares owned by or
held for the account of the Company shall not be deemed outstanding for the
purpose of any such computation. Such adjustment shall be made successively
whenever such a record date is fixed, and in the event that such rights, options
or warrants are not so issued, the Purchase Price shall be adjusted to be the
Purchase Price which would then be in effect if such record date had not been
fixed.

               (c) In case the Company shall, at any time after the date of this
Agreement, fix a record date for the making of a distribution to all holders of
the Common Shares or of any class or series of Equivalent Shares (including any
such distribution made in connection with a consolidation or merger in which the
Company is the continuing or surviving corporation) of evidences of indebtedness
or assets (other than a regular quarterly cash dividend, if any, or a dividend
payable in Common Shares) or subscription rights, options or warrants (excluding
those referred to in Section 11(b)), then, in each such case, 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 current market price (as determined pursuant
to Section 11(d) hereof) of a Common Share or an


                                      -15-
<PAGE>   19
Equivalent Share on such record date, less the fair market value (as determined
in good faith by the Board of Directors of the Company, whose determination
shall be described in a statement filed with the Rights Agent) of the portion of
the cash, assets or evidences of indebtedness so to be distributed or of such
subscription rights or warrants applicable to a Common Share or Equivalent
Share, as the case may be, and the denominator of which shall be such current
market price (as determined pursuant to Section 11(d) hereof) of a Common Share
or Equivalent Share on such record date. 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) For the purpose of any computation hereunder, other than
computations made pursuant to Section 11 (a) (iv) hereof, the "current per share
market price" of any security (a "Security" for the purpose of this Section
11(d)) on any date shall be deemed to be the average of the daily closing prices
per share of such Security for the thirty (30) consecutive Trading Days (as such
term is hereinafter defined) immediately prior to such date, and for purposes of
computations made pursuant to Section 11 (a) (iv) hereof, the "current per share
market price" of any Security on any date shall be deemed to be the average of
the daily closing prices per share of such Security for the ten (10) consecutive
Trading Days immediately prior to such date; provided, however, that in the
event that the current per share market price of the Security is determined
during a period following the announcement by the issuer of such Security of (i)
a dividend or distribution on such Security payable in shares of such Security
or securities convertible into such shares or (ii) any subdivision, combination
or reclassification of such Security, and prior to the expiration of the
requisite thirty (30) Trading Day or ten (10) Trading Day period, after the
ex-dividend date for such dividend or distribution, or the record date for such
subdivision, combination or reclassification, then, and in each such case, the
current per share market price shall be appropriately adjusted to reflect the
current market price per share equivalent of such Security. The closing price
for each day shall be the last sale price, regular way, or, in case no such sale
takes place on such day, the average of the closing bid and asked prices,
regular way, in either case as reported in the principal consolidated
transaction reporting system with respect to securities listed or admitted to
trading on the New York Stock Exchange or, if the Security is not listed or
admitted to trading on the New York Stock Exchange, as reported in the principal
consolidated transaction reporting system with respect to securities listed on
the principal national securities exchange on which the Security is listed or
admitted to trading or, if the Security is not listed or admitted to trading on
any national securities exchange, the last sale price or, if such last sale
price is not reported, the average of the high bid and low asked prices in the
over-the-counter market, as reported by the National Association of Securities
Dealers, Inc. Automated Quotations System ("NASDAQ") or such other system then
in use, or, if on any such date the Security is not quoted by any such
organization, the average of the closing bid and asked prices as furnished by a
professional market maker making a market in the Security selected by the Board
of Directors of the Company. If on any such date no market maker is making a
market in the Common Shares, the fair value of such shares on such date as
determined in good faith by the Board of Directors of the Company shall be used.
The term "Trading Day" shall mean a day on which the principal national
securities exchange on which the Security is listed or admitted to trading is
open for the transaction of business or, if the Security is not listed or
admitted to trading on any national securities exchange, a Business Day. If the
Common Shares are not publicly held or so listed or traded, "current per share


                                      -16-
<PAGE>   20
market price" shall mean the fair value per share as determined in good faith by
the Board of Directors of the Company, whose determination shall be described in
a statement filed with the Rights Agent 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 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 Common Share or other
share or one hundred-thousandth of a Preferred Share, 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 requires such adjustment or
(ii) the Expiration Date.

               (f) If as a result of an adjustment made pursuant to Section
11(a) or 13(a) hereof, the holder of any Right thereafter exercised shall become
entitled to receive any shares of capital stock other than Preferred Shares,
thereafter the number of such other shares so receivable upon exercise of any
Right and if required, the Purchase Price thereof, shall be subject to
adjustment from time to time in a manner and on terms as nearly equivalent as
practicable to the provisions with respect to the Common Shares contained in
Sections 11(a), (b), (c), (e), (h), (i), (j), (k), (l) and (m), and the
provisions of Sections 7, 9, 10, 13 and 14 with respect to the Preferred Shares
shall apply on like terms to any such other shares.

               (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-thousandths of a
Preferred Share purchasable from time to time hereunder upon exercise of the
Rights, all subject to further adjustment as provided herein.

               (h) Unless the Company shall have exercised its election as
provided in Section 11(i), upon each adjustment of the Purchase Price as a
result of the calculations made in Section 11(b), 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 Preferred
Shares (calculated to the nearest one hundred-thousandth of a share) obtained by
(i) multiplying (x) the number of Preferred Shares 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 as a result of the calculations made in Section 11(b) to
adjust the number of Rights, in substitution for any adjustment in the number of
Preferred Shares purchasable upon the exercise of a Right. Each of the Rights
outstanding after such adjustment of the number of Rights shall be exercisable
for the number of one-thousandths of a Preferred Share for which a Right was
exercisable immediately prior to such adjustment. Each Right held of record
prior to such adjustment of the number of Rights shall become


                                      -17-
<PAGE>   21
that number of Rights (calculated to the nearest 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 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 Preferred Shares issuable upon the exercise of the
Rights, the Rights Certificates theretofore and thereafter issued may continue
to express the Purchase Price per one one-thousandth of a Preferred Share and
the number of one-thousandths of a Preferred 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 par or stated value, if any, of the number
of one-thousandths of a Preferred Share 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 as
fully paid and nonassessable shares such number of one-thousandths of a
Preferred Share at such adjusted Purchase Price.

               (l) In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuing to the holder of any Right exercised after such record date of
the number of one-thousandths of a Preferred Share and other capital stock or
securities of the Company, if any, issuable upon such exercise over and above
the number of one-thousandths of a Preferred Share 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) upon the occurrence of the event requiring such
adjustment.


                                      -18-
<PAGE>   22
               (m) Anything in this Section 11 to the contrary notwithstanding,
prior to the Distribution Date, the Company shall be entitled to make such
reductions in the Purchase Price, in addition to those adjustments expressly
required by this Section 11, as and to the extent that it in its sole discretion
shall determine to be advisable in order that any (i) consolidation or
subdivision of the Preferred or Common Shares, (ii) issuance wholly for cash of
any Preferred or Common Shares at less than the current market price, (iii)
issuance wholly for cash of Preferred or Common Shares or securities which by
their terms are convertible into or exchangeable for Preferred or Common Shares,
(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 or
Common Shares shall not be taxable to such stockholders.

               (n) The Company covenants and agrees that it shall not, at any
time after the Distribution Date, effect or permit to occur any Triggering Event
or Section 13 Event, if (i) at the time or immediately after such Triggering
Event or Section 13 Event 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 (ii) prior to, simultaneously with or immediately after such Section
13 Event, the stockholders of the Person who constitutes, or would constitute,
the "Principal Party" for purposes of Section 13(b) 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 Sections 23, 24 or 27 hereof, take (or
permit to be taken) 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 the Company shall at any time after the date of this Agreement (A)
declare a dividend on the Preferred Shares payable in Preferred Shares, (B)
subdivide the outstanding Preferred Shares, (C) combine the outstanding
Preferred Shares (by reverse stock split or otherwise) into a smaller number of
Preferred Shares, or (D) issue any shares of its capital stock in a
reclassification of the Preferred Shares (including any such reclassification in
connection with a consolidation or merger in which the Company is the continuing
or surviving corporation), then, in each such event, except as otherwise
provided in this Section 11 and Section 7(e) hereof: (1) each of the Rights
outstanding at the time of the record date for such dividend or the effective
date of such subdivision, combination or reclassification shall be
proportionately adjusted to that number of Rights (calculated to the nearest one
ten-thousandth (1/10,000) of a Right) equal to a fraction (the "Exchange
Fraction"), the numerator of which shall be the total number of Preferred Shares
or shares of capital stock issued in such reclassification of the Preferred
Shares outstanding immediately following such time and the denominator of which
shall be the total number of Preferred Shares outstanding immediately prior to
such time, and the number of Rights that shall thereafter be issued with respect
to each Common Share or share of other capital stock that shall be issued in a
reclassification of the Common Shares prior to the Distribution Date shall be
equal to the total number of outstanding Rights immediately after such event (as
adjusted pursuant to this clause (1)) divided by the total number of outstanding
Common Shares or shares of such other capital stock immediately after such event
(subject to further adjustment pursuant to the provisions of this Agreement);
(2) the Purchase


                                      -19-
<PAGE>   23
Price in effect at the time of the record date for such dividend or of the
effective date of such subdivision, combination or reclassification shall be
adjusted so that the Purchase Price thereafter shall equal the result obtained
by dividing the Purchase Price in effect immediately prior to such time by the
Exchange Fraction; provided, however, that in no event shall the consideration
to be paid upon the exercise of one Right be less than the aggregate par value
of the shares of capital stock of the Company issuable upon exercise of such
Right; and (3) the number of one-thousandths of a Preferred Share or share of
such other capital stock issuable upon the exercise of each Right shall remain
unchanged immediately after such event, but, in the event of a reclassification,
the kind of shares issuable upon the exercise of each Right immediately after
such reclassification shall be adjusted to be the kind of shares of such other
capital stock issued in such reclassification, rather than Preferred Shares.

      Section 12. Certificate of Adjusted Purchase Price or Number of Shares.
Whenever an adjustment is made as provided in Sections 11 and 13 hereof, the
Company shall promptly (a) prepare a certificate setting forth such adjustment
and a brief statement of the facts accounting for such adjustment, (b) file with
the Rights Agent and with each transfer agent for the Preferred Shares a copy of
such certificate and (c) mail a brief summary thereof to each holder of a Rights
Certificate in accordance with Section 26 hereof. Notwithstanding the foregoing
sentence, the failure of the Company to make such certification or give such
notice shall not affect the validity of such adjustment or the force or effect
of the requirement for such adjustment. The Rights Agent shall be fully
protected in relying on any such certificate and on any adjustment contained
therein and shall not be deemed to have knowledge of such adjustment unless and
until it shall have received such certificate.

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

               (a) In the event that, following the Shares Acquisition Date,
directly or indirectly:

                       (i) the Company shall consolidate with, or merge with and
into, any other Person (other than a Subsidiary of the Company in a transaction
the principal purpose of which is to change the state of incorporation of the
Company or which complies with Section 11(o) hereof);

                       (ii) any Person (other than a Subsidiary of the Company
in a transaction that complies with Section 11(o) hereof shall consolidate with
the Company, or merge with and into the Company and the Company shall be the
continuing or surviving corporation of such consolidation or merger; or

                       (iii) the Company shall sell or otherwise transfer (or
one or more of its Subsidiaries shall sell or otherwise transfer), in one or
more transactions, assets or earning power aggregating 50% or more of the
assets or earning power of the Company and its Subsidiaries (taken as a whole)
to any other Person or Persons (other than the Company or one or more of its
wholly owned Subsidiaries in one or more transactions, each of which complies
with Section 11(o) hereof), then, and in each such case, proper provision
shall be made so that


                                      -20-
<PAGE>   24
                                (A) each holder of a Right (except as otherwise
provided herein) shall thereafter have the right to receive, upon the exercise
thereof in accordance with the terms of this Agreement, such number of validly
authorized and issued, fully paid and nonassessable Common Shares of the
Principal Party (as hereinafter defined), free of 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-thousandths of a Preferred Share for which a Right was exercisable
immediately prior to the first occurrence of a Section 13 Event (or, if a
Triggering Event has occurred prior to the first occurrence of a Section 13
Event, multiplying the number of such one-thousandths of a Preferred Share for
which a Right was exercisable immediately prior to the first occurrence of a
Triggering Event by the Purchase Price in effect immediately prior to such
first occurrence) and (2) dividing that product (which, following the first
occurrence of a Section 13 Event, shall be referred to as the "Total Exercise
Price" for each Right and for all purposes of this Agreement) by 50% of the
current per share market price (determined pursuant to Section 11(d) hereof) of
the Common Shares of such Principal Party on the date of consummation of such
Section 13 Event;

                                (B) 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;

                                (C) 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;

                                (D) such Principal Party shall take such steps
(including, but not limited to, the reservation of a sufficient number of its
Common Shares) 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 Common Shares
thereafter deliverable upon the exercise of the Rights.

               (b) "Principal Party" shall mean, in the case of any transaction
described in clause (i), (ii) or (iii) of Section 13(a), the Person or Acquiring
Person referred to therein (or such Person's or Acquiring Person's successor,
including, if applicable, the Company, if it is the surviving corporation),
provided, however,, that in any such case, (i) if such Person is a direct or
indirect Subsidiary of another Person, "Principal Party" shall refer to such
other Person and (ii) in case such Person is a Subsidiary, directly or
indirectly, of more than one Person, "Principal Party" shall refer to whichever
of such Persons is the issuer of the Common Shares having the greatest aggregate
value, and provided, further, that for purposes of transactions described in
clause (iii) hereof, "Principal Party" shall refer to that Person receiving the
greatest portion of the assets or earning power transferred pursuant to such
transaction or transactions.


                                      -21-
<PAGE>   25
               (c) If, for any reason, the Rights cannot be exercised for Common
Shares of such Principal Party as provided in Section 13(a), then each holder of
Rights shall have the right to exchange its Rights for cash from such Principal
Party in an amount equal to the number of Common Shares that it would otherwise
be entitled to purchase times 50% of the current per share market price, as
determined pursuant to Section 11(d) hereof, of such Common Shares of such
Principal Party. If, for any reason, the foregoing formulation cannot be applied
to determine the cash amount into which the Rights are exchangeable, then the
Board of Directors, based upon the advice of one or more nationally recognized
investment banking firms, and based upon the total value of the Company, shall
determine such amount reasonably and with good faith to the holders of Rights.
Any such determination shall be final and binding on the Rights Agent.

               (d) Notwithstanding anything in this Agreement to the contrary,
Section 13 shall not be applicable to a transaction described in clauses (i) and
(ii) of Section 13(a) if: (i) such transaction is consummated with a Person or
Persons who acquired Common Shares pursuant to a Permitted Offer (or a
wholly-owned Subsidiary of any such Person or Persons); (ii) the price per share
of Common Shares offered in such transaction is not less than the price per
share of Common Shares paid to all holders of Common Shares whose shares were
purchased pursuant to such Permitted Offer; and (iii) the form of consideration
being offered to the remaining holders of Common Shares pursuant to such
transaction is the same form as the form of consideration paid pursuant to such
Permitted Offer. Upon consummation of any such transaction contemplated by this
Section 13(d), all Rights hereunder shall expire.

               (e) The Company shall not consummate any Section 13 Event unless
the Principal Party shall have a sufficient number of authorized Common Shares
that 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 issuer shall have executed and delivered to the Rights
Agent a supplemental agreement confirming that such Principal Party shall, upon
consummation of such Section 13 Event, assume this Agreement in accordance with
Sections 13(a) and (b) hereof, that all rights of first refusal or preemptive
rights in respect of the issuance of Common Shares of such Principal Party upon
exercise of outstanding Rights have been waived, that there are no rights,
warrants, instruments or securities outstanding or any agreements or
arrangements which, as a result of the consummation of such transaction, would
eliminate or substantially diminish the benefits intended to be afforded by the
Rights and that such transaction shall not result in a default by such Principal
Party under this Agreement, and further providing that, as soon as practicable
after the date of such Section 13 Event, such Principal Party will:

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


                                      -22-
<PAGE>   26
                       (ii) use its best efforts to list (or continue the
listing of) the Rights and the securities purchasable upon exercise of the
Rights on a national securities exchange or to meet the eligibility requirements
for quotation on NASDAQ; and

                       (iii) deliver to holders of the Rights historical
financial statements for such Principal Party which comply in all respects with
the requirements for registration on Form 10 (or any successor form) under the
Exchange Act.

                       In the event that at any time after the occurrence of a
Triggering Event some or all of the Rights shall not have been exercised at the
time of a transaction described in this Section 13, the Rights which have not
theretofore been exercised shall thereafter be exercisable in the manner
described in Section 13(a) (without taking into account any prior adjustment
required by Section 11 (a) (ii)).

               (f) The provisions of this Section 13 shall similarly apply to
successive mergers or consolidations or sales or other transfers.

      Section 14.  Fractional Rights and Fractional Shares.

               (a) The Company shall not be required to issue fractions of
Rights or to distribute Rights Certificates which evidence fractional Rights. In
the event any fractional Right would otherwise be issuable to a holder, then
either (i) the fractional Right to which each holder would otherwise be entitled
(after aggregation of all fractional Rights to which any one holder would
otherwise be entitled) shall be rounded up to the next highest whole Right or
(ii) in lieu of such fractional Right, there shall be paid to such registered
holder of the Rights Certificates with regard to which such fractional Right
would otherwise be issuable, an amount in cash equal to the same fraction of the
current market value of a whole Right. For the purposes of this Section 14(a),
the current market value of a whole Right shall be the closing price of the
Rights for the Trading Day immediately prior to the date on which such
fractional Rights would have been otherwise issuable, as determined pursuant to
the second sentence of Section 11(d) hereof.

               (b) The Company shall not be required to issue fractions of
Preferred Shares (other than fractions that are integral multiples of one
one-thousandth of a Preferred Share) upon exercise of the Rights or to
distribute certificates which evidence fractional Preferred Shares (other than
fractions that are integral multiples of one one-thousandth of a Preferred
Share). In lieu of fractional Preferred Shares that are not integral multiples
of one one-thousandth of a Preferred Share, the Company shall 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 a Common Share. For purposes of this Section 14(b), the current
market value of a Common Share shall be the closing price of a Common Share (as
determined pursuant to the second sentence of Section 11(d) hereof) for the
Trading Day immediately prior to the date of such exercise.

               (c) The holder of a Right by the acceptance of the Right
expressly waives his or her right to receive any fractional Rights or any
fractional shares upon exercise of a Right.


                                      -23-
<PAGE>   27
      Section 15. Rights of Action. All rights of action in respect of this
Agreement, excepting the rights of action given to the Rights Agent under
Section 18 hereof, are vested in the respective registered holders of the Rights
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Shares); and any registered holder of any Rights Certificate (or, prior
to the Distribution Date, of the Common Shares), without the consent of the
Rights Agent or of the holder of any other Rights Certificate (or, prior to the
Distribution Date, of the Common Shares), may, in his or her own behalf and for
his or her 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 or her 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 will be entitled to specific
performance of the obligations under, and injunctive relief against actual or
threatened violations of, the obligations of any Person subject to this
Agreement.

      Section 16. Agreement of 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 the Common Shares;

               (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 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; and

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

      Section 17. 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 Preferred Shares or any other
securities of the Company which may at any time be issuable on the exercise of
the Rights represented thereby, nor shall anything contained herein or in any
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.


                                      -24-
<PAGE>   28
      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
other disbursements incurred in the administration and execution of this
Agreement and the exercise and performance of its duties hereunder. The Company
also agrees to indemnify the Rights Agent for, and to hold it harmless against,
any loss, liability or expense, incurred without negligence, bad faith or
willful misconduct on the part of the Rights Agent, for anything done or omitted
by the Rights Agent in connection with the acceptance and administration of this
Agreement, including the costs and expenses of defending against any claim of
liability in the premises.

               (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 the Common Shares 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, or otherwise upon the advice of counsel as set forth in
Section 20 hereof.

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

               (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 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 the 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
Rights Agent 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.


                                      -25-
<PAGE>   29
      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 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 per share 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 any one of the Chairman of the Board, the Chief Executive
Officer, the President, any Vice President, the Chief Financial Officer, 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 to the Company and
any other Person only for its own negligence, bad faith or willful misconduct.

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

               (e) The Rights Agent shall not be under any responsibility in
respect of the validity of this Agreement or the execution and delivery hereof
(except the due execution hereof by the Rights Agent) or in respect of the
validity or execution of any 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 change in the exercisability of the Rights
or any adjustment in the terms of the Rights (including the manner, method or
amount thereof) provided for in Sections 3, 11, 13, 23 or 24, or the
ascertaining of the existence of facts that would require any such change or
adjustment (except with respect to the exercise of Rights evidenced by Rights
Certificates after receipt by the Rights Agent of a certificate furnished
pursuant to Section 12 describing such change or adjustment); nor shall it by
any act hereunder be deemed to make any representation or warranty as to the
authorization or reservation of any Preferred Shares to be issued pursuant to
this Agreement or any Rights Certificate or as to whether any Preferred Shares
will, when issued, be validly authorized and issued, fully paid and
nonassessable.


                                      -26-
<PAGE>   30
               (f) The Company agrees that it will perform, execute, acknowledge
and deliver or cause to be performed, executed, acknowledged and delivered all
such further and other acts, instruments and assurances as may reasonably be
required by the Rights Agent for the carrying out or performing by the Rights
Agent of the provisions of this Agreement.

               (g) The Rights Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from any
one of the Chairman of the Board, the Chief Executive Officer, the President,
any Vice President, the Chief Financial Officer, the Secretary or any Assistant
Secretary of the Company, and to apply to such officers for advice or
instructions in connection with its duties, and it shall not be liable for any
action taken or suffered by it in good faith in accordance with instructions of
any such officer or for any delay in acting while waiting for those
instructions. Any application by the Rights Agent for written instructions from
the Company may, at the option of the Rights Agent, set forth in writing any
action proposed to be taken or omitted by the Rights Agent under this Rights
Agreement and the date on and/or after which such action shall be taken or such
omission shall be effective. The Rights Agent shall not be liable for any action
taken by, or omission of, the Rights Agent in accordance with a proposal
included in any such application on or after the date specified in such
application (which date shall not be less than five (5) Business Days after the
date any officer of the Company actually receives such application, unless any
such officer shall have consented in writing to an earlier date) unless, prior
to taking any such action (or the effective date in the case of an omission),
the Rights Agent shall have received written instructions in response to such
application specifying the action to be taken or omitted.

               (h) The Rights Agent and any stockholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or other
securities of the Company or 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 this Agreement. Nothing herein shall preclude the Rights Agent from acting
in any other capacity for the Company or for any other legal entity.

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

               (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,


                                      -27-
<PAGE>   31
the Rights Agent shall not take any further action with respect to such
requested exercise or 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 Preferred Shares and the Common Shares by registered or
certified mail, and to the holders of the Rights Certificates by first-class
mail. The Company may remove the Rights Agent or any successor Rights Agent upon
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 Preferred
Shares and the Common Shares by registered or certified mail, and 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 or her Rights
Certificate for inspection by the Company), then the 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 Company or by such a court, shall be a corporation organized and doing
business under the laws of the United States or of any state of the United
States, in good standing, which is authorized under such laws to exercise
corporate trust or stockholder services 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 $50
million. After appointment, the successor Rights Agent shall be vested with the
same powers, rights, duties and responsibilities as if it had been originally
named as Rights Agent without further act or deed; but the predecessor Rights
Agent shall deliver and transfer to the successor Rights Agent any property at
the time held by it hereunder, and execute and deliver any further assurance,
conveyance, act or deed necessary for the purpose. Not later than the effective
date of any such appointment, the Company shall file notice thereof in writing
with the predecessor Rights Agent and each transfer agent of the Preferred
Shares and the Common Shares, 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 of Directors to reflect any adjustment or change
in the Purchase Price and the number or kind or class of shares or other
securities or property purchasable under the Rights Certificates made in
accordance with the provisions of this Agreement. In addition, in connection
with the issuance or sale of Common Shares following the Distribution Date and
prior to the redemption or expiration of the Rights, the Company (a) shall, with
respect to Common Shares so issued or sold pursuant to the exercise of stock
options or under any employee plan or arrangement or upon the exercise,
conversion or exchange of securities hereinafter issued by the Company and (b)
may, in any other case, if deemed necessary or appropriate by the Board of
Directors

                                      -28-
<PAGE>   32
of the Company, 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 and this sentence shall be null and void
ab initio if, and to the extent that, such issuance or this sentence would
create a significant risk of or result in material adverse tax consequences to
the Company or the Person to whom such Rights Certificate would be issued or
would create a significant risk of or result in such options' or employee plans'
or arrangements' failing to qualify for otherwise available special tax
treatment 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.

               (a) The Company may, at its option and with the approval of the
Board of Directors, at any time prior to the Close of Business on the earlier of
(i) the tenth day following the Shares Acquisition Date or such later date as
may be determined by action of a majority of Continuing Directors then in office
and publicly announced by the Company 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, appropriately adjusted to reflect any (A) dividend on the Common
Shares payable in Common Shares, (B) subdivision of the outstanding Common
Shares, (C) combination of the outstanding Common Shares (by reverse stock split
or otherwise) into a smaller number of Common Shares or (D) issuance of any
shares of the Company's capital stock in a reclassification of the Common Shares
(including any such reclassification in connection with a consolidation or
merger in which the Company is the continuing or surviving corporation) or
similar transaction occurring after the date hereof (such redemption price being
herein referred to as the "Redemption Price") and the Company may, at its
option, pay the Redemption Price either in Common Shares (based on the current
per share market price thereof (as determined pursuant to Section 11(d) hereof)
at the time of redemption) or cash; provided, however, if the Board of Directors
of the Company authorizes redemption of the Rights on or after the time a Person
becomes an Acquiring Person, then there must be Continuing Directors then in
office and such authorization shall require the concurrence of a majority of
such Continuing Directors.

               (b) Immediately upon the action of the Board of Directors of the
Company 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.
Within ten (10) days after the action of the Board of Directors 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 their last addresses as they appear upon the
registry books of the Rights Agent or, prior to the Distribution Date, on the
registry books of the transfer agent for the Common Shares. Any notice which is
mailed in the manner herein provided shall be deemed given, whether or not the
holder receives the notice. Each such notice of redemption will state the method
by which the payment of the Redemption Price will be made. Neither the Company
nor any of its Affiliates or Associates may redeem, acquire or purchase for
value any Rights at any time in any manner other than that specifically set
forth in this Section 23 or in Section 24 hereof, and other than in connection
with the purchase of Common Shares prior to the Distribution Date.


                                      -29-
<PAGE>   33
      Section 24.  Exchange.

               (a) Subject to applicable laws, rules and regulations, and
subject to subsection (c) below, the Company may, at its option, by majority
vote of the Board of Directors and a majority vote of the Continuing Directors,
at any time after the occurrence of a Triggering Event, exchange all or part of
the then outstanding and exercisable Rights (which shall not include Rights that
have become void pursuant to the provisions of Section 7(e) hereof) for Common
Shares at an exchange ratio of one Common Share per Right, appropriately
adjusted to reflect any stock split, stock dividend or similar transaction
occurring after the date hereof (such exchange ratio being hereinafter referred
to as the "Ratio of Exchange"). Notwithstanding the foregoing, the Board of
Directors shall not be empowered to effect such exchange at any time after any
Person (other than the Company, any Subsidiary of the Company, any employee
benefit plan of the Company or any such Subsidiary, or any entity holding Common
Shares for or pursuant to the terms of any such plan), together with all
Affiliates and Associates of such Person, becomes the Beneficial Owner of 50% or
more of the Common Shares then outstanding.

               (b) Immediately upon the action of the Board of Directors
ordering the exchange of any Rights pursuant to subsection (a) of this Section
24 and without any further action and without any notice, the right to exercise
such Rights shall terminate and the only right thereafter of a holder of such
Rights shall be to receive that number of Common Shares equal to the number of
such Rights held by such holder multiplied by the Ratio of Exchange. The Company
shall 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 shall mail a notice of any such exchange to all of
the holders of such Rights at their last addresses as they appear upon the
registry books of the Rights Agent. Any notice which is mailed in the manner
herein provided shall be deemed given, whether or not the holder receives the
notice. Each such notice of exchange will state the method by which the exchange
of the Common Shares for Rights will be effected and, in the event of any
partial exchange, the number of Rights which will be exchanged. Any partial
exchange shall be effected pro rata based on the number of Rights (other than
Rights which have become void pursuant to the provisions of Section 7(e) hereof)
held by each holder of Rights.

               (c) In the event that there shall not be sufficient Common Shares
issued but not outstanding or authorized but unissued to permit any exchange of
Rights as contemplated in accordance with Section 24(a), the Company shall
either take such action as may be necessary to authorize additional Common
Shares for issuance upon exchange of the Rights or alternatively, at the option
of a majority of the Board of Directors, with respect to each Right (i) pay cash
in an amount equal to the Current Value (as hereinafter defined), in lieu of
issuing Common Shares in exchange therefor, or (ii) issue debt or equity
securities or a combination thereof, having a value equal to the Current Value,
in lieu of issuing Common Shares in exchange for each such Right, where the
value of such securities shall be determined by a nationally recognized
investment banking firm selected by the Board of Directors by majority vote of
the Board of Directors, or (iii) deliver any combination of cash, property,
Common Shares and/or other securities having a value equal to the Current Value
in exchange for each Right. For purposes of this Section 24(c) only, the Current
Value shall mean the product of the current per share market price of Common
Shares (determined pursuant to Section 11(d) on the date of the occurrence of
the event


                                      -30-
<PAGE>   34
described above in subparagraph (a)) multiplied by the number of Common Shares
for which the Right otherwise would be exchangeable if there were sufficient
shares available. To the extent that the Company determines that some action
need be taken pursuant to clauses (i), (ii) or (iii) of this Section 24(c), the
Board of Directors may temporarily suspend the exercisability of the Rights for
a period of up to sixty (60) days following the date on which the event
described in Section 24(a) shall have occurred, in order to seek any
authorization of additional Common Shares and/or to decide the appropriate form
of distribution to be made pursuant to the above provision and to determine the
value thereof. In the event of any such suspension, the Company shall issue a
public announcement stating that the exercisability of the Rights has been
temporarily suspended.

               (d) The Company shall not be required to issue fractions of
Common Shares or to distribute certificates which evidence fractional Common
Shares. In lieu of such fractional Common Shares, there shall be paid to the
registered holders of the Rights Certificates with regard to which such
fractional Common Shares would otherwise be issuable, an amount in cash equal to
the same fraction of the current per share market value of a whole Common Share
(as determined pursuant to the second sentence of Section 11(d) hereof).

               (e) The Company may, at its option, by majority vote of the Board
of Directors, at any time before any Person has become an Acquiring Person,
exchange all or part of the then outstanding Rights for rights of substantially
equivalent value, as determined reasonably and with good faith by the Board of
Directors, based upon the advice of one or more nationally recognized investment
banking firms.

               (f) Immediately upon the action of the Board of Directors
ordering the exchange of any Rights pursuant to subsection (e) of this Section
24 and without any further action and without any notice, the right to exercise
such Rights shall terminate and the only right thereafter of a holder of such
Rights shall be to receive that number of rights in exchange therefor as has
been determined by the Board of Directors in accordance with subsection (e)
above. The Company shall 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 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 transfer agent for the Common Shares
of the Company. 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 Rights will be
effected.


                                      -31-
<PAGE>   35
      Section 25.  Notice of Certain Events.

               (a) In case the Company shall propose to effect or permit to
occur any Triggering Event described in Section 11 (a) (ii) (A) or 11 (a) (ii)
(B) or a Section 13 Event, the Company shall give notice thereof to each holder
of Rights in accordance with Section 26 hereof at least twenty (20) days prior
to occurrence of such Triggering Event or such Section 13 Event.

               (b) In case any Triggering Event or Section 13 Event shall occur,
then, in any such case, the Company shall as soon as practicable thereafter give
to each holder of a Rights Certificate, in accordance with Section 26 hereof, a
notice of the occurrence of such event, which shall specify the event and the
consequences of the event to holders of Rights under Sections 11 (a) (nd 13
hereof.

      Section 26. Notices. Notices or demands authorized by this Agreement to be
given or made by the Rights Agent or by the holder of any 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:

                                Mark B. Hoffman
                                Sybase, Inc.
                                6475 Christie Avenue
                                Emeryville, CA 94608

             With a copy to its General Counsel at the same address

Subject to the provisions of Section 21 hereof, any notice or demand authorized
by this Agreement to be given or made by the Company or by the holder of any
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:

                                The First National Bank of Boston
                                Blue Hill Office Park
                                150 Royall Street
                                Mail Stop 45-02-16
                                Canton, MA 02021
                                Attention: Andrew S. March
                                            Shareholder Services Division

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 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.


                                      -32-
<PAGE>   36
      Section 27. Supplements and Amendments. Prior to the Distribution Date,
the Company may supplement or amend this Agreement in any respect without the
approval of any holders of Rights and the Rights Agent shall, if the Company so
directs, execute such supplement or amendment. From and after the Distribution
Date, the Company and the Rights Agent may from time to time supplement or amend
this Agreement without the approval of any holders of Rights in order to (i)
cure any ambiguity, (ii) correct or supplement any provision contained herein
which may be defective or inconsistent with any other provisions herein, (iii)
shorten or lengthen any time period hereunder (which lengthening or shortening,
following the first occurrence of an event set forth in the proviso to Section
23(a) hereof, shall be effective only if there are Continuing Directors and
shall require the concurrence of a majority of such Continuing Directors) or
(iv) to change or supplement the provisions hereunder in any manner that the
Company may deem necessary or desirable and that shall not adversely affect the
interests of the holders of Rights (other than an Acquiring Person or an
Affiliate or Associate of an Acquiring Person); provided, this Agreement may not
be supplemented or amended to lengthen, pursuant to clause (iii) of this
sentence, (A) a time period relating to when the Rights may be redeemed at such
time as the Rights are not then redeemable or (B) any other time period 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 that 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 Shares.

      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 of Directors, etc. For
all purposes of this Agreement, any calculation of the number of Common Shares
outstanding at any particular time, including for purposes of determining the
particular percentage of such outstanding Common Shares 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 of Directors of the Company (and, where specifically provided for
herein, the Continuing Directors) shall have the exclusive power and authority
to administer this Agreement and to exercise all rights and powers specifically
granted to the Board, or the Company (or, where specifically provided for
herein, the Continuing Directors), or as may be necessary or advisable in the
administration of this Agreement, including, without limitation, the right and
power to (i) interpret the provisions of this Agreement and (ii) make all
determinations deemed necessary or advisable for the administration of this
Agreement (including a determination to redeem or not redeem the Rights or to
amend the Agreement). All such actions, 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 (or, where
specifically provided for herein, by the Continuing Directors) in good faith,
shall (x) be final, conclusive and binding on the Company, the Rights Agent, the
holders of the Rights Certificates and all other parties and (y) not subject the
Board or the Continuing Directors to any liability to the holders of the Rights.


                                      -33-
<PAGE>   37
      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, the Common Shares) any legal or equitable right, remedy or claim under
this Agreement; but this Agreement shall be for the sole and exclusive benefit
of the Company, the Rights Agent and the registered holders of the Rights
Certificates (and, prior to the Distribution Date, the Common Shares).

      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 of
Directors of the Company 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 of Directors.

      Section 32. Governing Law. This Agreement and 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 to
be made and performed entirely within such State.

      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.


                                      -34-
<PAGE>   38
      IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as of the day and year first above written.

                                       SYBASE, INC.

                                       By: /s/ Mark B. Hoffman
                                           --------------------------
                                       Name: Mark B. Hoffman

                                       Title: President and Chief
                                                  Executive Officer

                                       THE FIRST NATIONAL BANK OF BOSTON

                                       By: /s/ Kenyon Bissel
                                           --------------------------
                                       Name: Kenyon Bissel
                                             ------------------------
                                       Title: Senior Account Manager
                                             ------------------------


                                      -35-
<PAGE>   39
                                    EXHIBIT A

                CERTIFICATE OF DESIGNATION OF RIGHTS, PREFERENCES
                                AND PRIVILEGES OF

                     SERIES A PARTICIPATING PREFERRED STOCK

                                       OF

                                  SYBASE, INC.

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

      We, Mark B. Hoffman and Laurie B. Keating, the President and the Assistant
Secretary, respectively, of Sybase, 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 March 24, 1992 adopted the following resolution creating a
series of 40,000 shares of Preferred Stock designated as Series A Participating
Preferred Stock:

      "RESOLVED, that pursuant to the authority vested in the Board of Directors
of the corporation by the Restated Certificate of Incorporation, the Board of
Directors does hereby provide for the issue of a series of Preferred Stock,
$.001 par value, of the Corporation, to be designated "Series A Participating
Preferred Stock", initially consisting of 40,000 shares and to the extent that
the designations, powers, preferences and relative and other special rights and
the qualifications, limitations and restrictions of the Series A Participating
Preferred Stock are not stated and expressed in the Restated Certificate of
Incorporation, does hereby fix and herein state and express such designations,
powers, preferences and relative and other special rights and the
qualifications, limitations and restrictions thereof, as follows (all terms used
herein which are defined in the Restated Certificate of Incorporation shall be
deemed to have the meanings provided therein):

      Section 1. Designation and Amount. The shares of such series shall be
designated as "Series A Participating Preferred Stock", par value $.001 per
share, and the number of shares constituting such series shall be 40,000.
<PAGE>   40
      Section 2.  Dividends and Distributions.

               (A) Subject to the prior and superior right of the holders of any
shares of any series of Preferred Stock ranking prior and superior to the shares
of Series A Participating Preferred Stock with respect to dividends, the holders
of shares of Series A 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 last day
of September, December, March and June in each year (each such date being
referred to herein as a "Quarterly Dividend Payment Date"), commencing on the
first Quarterly Dividend Payment Date after the first issuance of a share or
fraction of a share of Series A Participating Preferred Stock, in an amount per
share (rounded to the nearest cent) equal to, subject to the provision for
adjustment hereinafter set forth, 1,000 times the aggregate per share amount of
all cash dividends, and 1,000 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 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 A
Participating Preferred Stock. In the event the Corporation shall at any time
after March 24, 1992 (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 A Participating Preferred Stock were entitled immediately prior to
such event under the preceding sentence shall be adjusted by multiplying such
amount by a fraction, the numerator of which is the number of shares of Common
Stock outstanding immediately after such event and the denominator of which is
the number of shares of Common Stock that were outstanding immediately prior to
such event.

               (B) The Corporation shall declare a dividend or distribution on
the Series A 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).

               (C) Dividends shall begin to accrue and be cumulative on
outstanding shares of Series A Participating Preferred Stock from the Quarterly
Dividend Payment Date next preceding the date of issue of such shares of Series
A 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 A 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 A 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 A Participating Preferred Stock
entitled


                                       -2-
<PAGE>   41
to receive payment of a dividend or distribution declared thereon, which record
date shall be no more than 30 days prior to the date fixed for the payment
thereof.

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

               (A) Subject to the provision for adjustment hereinafter set
forth, each share of Series A Participating Preferred Stock shall entitle the
holder thereof to 1,000 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 A 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 A 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) Except as required by law, holders of Series A 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) The Corporation shall not declare any dividend on, make any
distribution on, or redeem or purchase or otherwise acquire for consideration
any shares of Common Stock after the first issuance of a share or fraction of a
share of Series A Participating Preferred Stock unless concurrently therewith it
shall declare a dividend on the Series A Participating Preferred Stock as
required by Section 2 hereof.

               (B) Whenever quarterly dividends or other dividends or
distributions payable on the Series A 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 A
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 A Participating Preferred Stock;


                                       -3-
<PAGE>   42
                       (ii) declare or pay dividends on, 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 Series A Participating
Preferred Stock, except dividends paid ratably on the Series A 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 A 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 A Participating Preferred
Stock;

                       (iv) purchase or otherwise acquire for consideration any
shares of Series A Participating Preferred Stock, or any shares of stock ranking
on a parity with the Series A Participating 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.

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

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

      Section 6.  Liquidation, Dissolution or Winding Up.

               (A) Upon any 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 A Participating Preferred Stock unless,
prior thereto, the holders of shares of Series A Participating Preferred Stock
shall have received an amount equal to accrued and unpaid dividends and
distributions thereon, whether or not declared, to the date of such payment,
plus an amount equal to the greater of (1) $1,000 per share, provided that in
the event the Corporation does not have sufficient assets, after payment of its
liabilities and distribution to holders of Preferred Stock ranking prior to the
Series A Participating Preferred Stock, available to


                                       -4-
<PAGE>   43
permit payment in full of the $1,000 per share amount, the amount required to be
paid under this Section 6 (A) (1) shall, subject to Section 6(B) hereof, equal
the value of the amount of available assets divided by the number of outstanding
shares of Series A Participating Preferred Stock or (2) subject to the
provisions for adjustment hereinafter set forth, 1,000 times the aggregate per
share amount to be distributed to the holders of Common Stock (the greater of
(1) or (2), the "Series A Liquidation Preference"). 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 to which holders of shares
of Series A Participating Preferred Stock were entitled immediately prior to
such event under clause (2) 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 that were 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) In the event, however, that there are not sufficient assets
available to permit payment in full of the Series A Liquidation Preference and
the liquidation preferences of all other series of Preferred Stock, if any,
which rank on a parity with the Series A 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.

      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 A 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 1,000 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 A 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 A Participating Preferred
Stock shall not be redeemable.

      Section 9. Ranking. The Series A 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.


                                       -5-
<PAGE>   44
      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, preference or special rights of the Series A
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 A Participating Preferred Stock, voting separately as a class.

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

      IN WITNESS WHEREOF, we have executed and subscribed this Certificate and
do affirm the foregoing as true under the penalties of perjury this 24th day of
March, 1992.

                                       ------------------------------
                                       President, Mark B. Hoffman

ATTEST:

- -----------------------------
Assistant Secretary,
Laurie B. Keating


                                       -6-
<PAGE>   45
                                    EXHIBIT B

                           Form of Rights Certificate

Certificate No. R-                                                 _____ Rights

               NOT EXERCISABLE AFTER ________________, ____ OR EARLIER IF
               TERMINATED 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 OR AN AFFILIATE
               OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS ARE 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 SUCH RIGHTS AGREEMENT.]*

                               Rights Certificate

               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 Preferred Shares Rights Agreement, dated as of March 24, 1992
as such agreement may be amended from time to time in accordance with its terms
(the "Rights Agreement"), between Sybase, Inc., a Delaware corporation (the
"Company"), and The First National Bank of Boston (the "Rights Agent"), to
purchase from the Company at any time after the Distribution Date (as such term
is defined in the Rights Agreement) and prior to 5:00 P.M., East Coast time, on
March 24, 2002 at the office of the Rights Agent designated for such purpose, or
at the office of its successor as Rights Agent, one one-thousandth of a fully
paid non-assessable share of Series A Participating Preferred Stock (the
"Preferred Shares"), of the Company, at a purchase price of $125.00 per
one-thousandth of a Preferred 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

- --------
               *       The portion of the legend in bracket shall be inserted
                       only if applicable and shall replace the preceding
                       sentence.
<PAGE>   46
Rights Certificate (and the number of one-thousandths of a Preferred Share which
may be purchased upon exercise hereof) set forth above, are the number and
Purchase Price as of March 24, 1992, based on the Preferred Shares as
constituted at such date. As provided in the Rights Agreement, the Purchase
Price and the number and kind of Preferred Shares or other securities which may
be purchased upon the exercise of the Rights evidenced by this Rights
Certificate are subject to modification and adjustment upon the happening of
certain 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 principal
executive offices of the Company and the above-mentioned office of the Rights
Agent.

               Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Rights Certificate (i) may be redeemed by the Company, at its
option, at a redemption price of $.01 per Right or (ii) may be exchanged by the
Company in whole or in part for Common Shares, substantially equivalent rights
or other consideration as determined by the Company.

               This Rights Certificate, with or without other Rights
Certificates, upon surrender at the office 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 amount of securities 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.

               No fractional portion less than integral multiples of one
one-thousandth of a Preferred Share will be issued upon the exercise of any
Right or Rights evidenced hereby but in lieu thereof a cash payment will be
made, as provided in the Rights Agreement.

               No holder of this Rights Certificate, as such, shall be entitled
to vote or receive dividends or be deemed for any purpose the holder of the
Preferred Shares or of any other securities of the Company which may at any time
be issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof, as such, any
of the rights of a stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Rights
Certificate shall have been exercised as provided in the Rights Agreement.

                                      -2-
<PAGE>   47
               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:                                        SYBASE, INC.

                                       By:
- -----------------------------             ---------------------------
Laurie B. Keating, Assistant               Mark B. Hoffman, President
Secretary

Countersigned:

The First National Bank of Boston
as Rights Agent

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


                                       -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 ______________________________________________
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:

               Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of Securities
Dealers, Inc., or a commercial bank or trust company having an office or
correspondent in the United States.
<PAGE>   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 Person (as such terms are
defined in 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 any such Person.

Dated: _______________________, 19___

                                       ______________________________
                                       Signature

Signature Guaranteed:

      Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.
<PAGE>   50
             Form of Reverse Side of Rights Certificate -- continued

                          FORM OF ELECTION TO PURCHASE

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

To:_______________________

               The undersigned hereby irrevocably elects to exercise
_________________________________ Rights represented by this Rights Certificate
to purchase the number of one-thousandths of a Preferred Share issuable upon the
exercise of such Rights and requests that certificates for such number of
one-thousandths of a Preferred Share be issued in the name of:

Please insert social security
or other identifying number

________________________________________________________________________________
                         (Please print name and address)
________________________________________________________________________________
If such number of Rights shall not be all the Rights evidenced by this Rights
Certificate, a new Rights Certificate for the balance remaining 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:

               Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of Securities
Dealers, Inc., or a commercial bank or trust company having an office or
correspondent in the United States.
<PAGE>   51
                                   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 Person (as such terms
are defined in 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 any such Person.

Dated: _______________________, 19___

                                       ______________________________
                                       Signature

Signature Guaranteed:

      Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.
<PAGE>   52
             Form of Reverse Side of Rights Certificate -- continued

                                     NOTICE

               The signature in the foregoing Forms of Assignment and Election
must conform to the name as written upon the face of this Rights Certificate in
every particular, without alteration or enlargement or any change whatsoever.
<PAGE>   53
                                    EXHIBIT C

                                  SYBASE, INC.

                             STOCKHOLDER RIGHTS PLAN

                                Summary of Rights

Distribution and
Transfer of Rights;
Rights Certificate:           The Board of Directors has declared a dividend of
                              one Right for each share of Sybase, Inc. Common
                              Stock outstanding. Prior to the Distribution Date
                              referred to below, the Rights will be evidenced by
                              and trade with the certificates for the Common
                              Stock. After the Distribution Date, Sybase, Inc.
                              (the "Company") will mail Rights certificates to
                              the Company's stockholders and the Rights will
                              become transferable apart from the Common Stock.

Distribution Date:            Rights will separate from the Common Stock and
                              become exercisable following the tenth day (or
                              such later date as may be determined by a majority
                              of the Directors not affiliated with the acquiring
                              person or group (the "Continuing Directors"))
                              after a person or group (a) acquires beneficial
                              ownership of 15% or more of the Company's Common
                              Stock or (b) announces a tender or exchange offer,
                              the consummation of which would result in
                              ownership by a person or group of 15% or more of
                              the Company's Common Stock. An acquisition of 15%
                              or more of the Company's Common Stock by Lotus
                              Development Corporation ("Lotus") will not trigger
                              such separation, so long as (i) the Stock Purchase
                              Agreement dated September 21, 1989 between Lotus
                              and the Company has not been terminated, (ii) the
                              acquisition is in accordance with the terms of
                              such agreement and (iii) the "standstill"
                              provisions of such agreement limiting Lotus'
                              ownership of the Company's Common Stock to a
                              maximum of 25% is still in effect.

Preferred Stock
Purchasable Upon
Exercise of Rights:           After the Distribution Date, each Right will
                              entitle the holder to purchase, for $125 (the
                              "Exercise Price"), a fraction of a share of the
                              Company's Preferred Stock with economic terms
                              similar to that of one share of the Company's
                              Common Stock.

Flip-In:                      If an acquiror other than Lotus, acting as
                              permitted above, (an "Acquiring Person") obtains
                              15% or more of the Company's Common Stock (other
                              than pursuant to a tender offer deemed fair by the
                              Board of Directors (a "Permitted Offer")), then
                              each Right (other than Rights owned by an
                              Acquiring Person or its affiliates) will entitle
                              the holder thereof to purchase, for the Exercise
                              Price,
<PAGE>   54
                              a number of shares of the Company's Common Stock
                              having a then current market value of twice the
                              Exercise Price.

Flip-Over:                    If, after the Shares Acquisition Date (defined
                              below), (a) the Company merges into another
                              entity, (b) an acquiring entity merges into the
                              Company or (c) the Company sells more than 50% of
                              the Company's assets or earning power, then each
                              Right (other than Rights owned by an Acquiring
                              Person or its affiliates) will entitle the holder
                              thereof to purchase, for the Exercise Price, a
                              number of shares of Common Stock of the person
                              engaging in the transaction having a then current
                              market value of twice the Exercise Price (unless
                              the transaction satisfies certain conditions and
                              is consummated with a person who acquired shares
                              pursuant to a Permitted Offer, in which case the
                              Rights will expire).

Exchange Provision:           At any time after an event triggering the flip-in
                              or flip-over rights and prior to the acquisition
                              by the Acquiring Person of 50% or more of the
                              outstanding Common Stock, the Board of Directors
                              of the Company may exchange the Rights (other than
                              Rights owned by the Acquiring Person or its
                              affiliates), in whole or in part, at an exchange
                              ratio of one Common Share per Right (subject to
                              adjustment).

Redemption of
the Rights:                   Rights will be redeemable at the Company's option
                              for $.01 per Right at any time on or prior to the
                              tenth day (or such later date as may be determined
                              by a majority of the Continuing Directors) after
                              public announcement that a person has acquired
                              beneficial ownership of 15% or more of the
                              Company's Common Stock (the "Shares Acquisition
                              Date").

Expiration of
the Rights:                   The Rights expire on the earliest of (a) March 24,
                              2002, (b) exchange or redemption of the Rights as
                              described above, or (c) consummation of a merger
                              or consolidation or sale of assets resulting in
                              expiration of the Rights as described above.

Amendment of Terms
of Rights:                    The terms of the Rights and the Rights Agreement
                              may be amended in any respect without the consent
                              of the Rights holders on or prior to the
                              Distribution Date; thereafter, the terms of the
                              Rights and the Rights Agreement may be amended
                              without the consent of the Rights holders in order
                              to cure any ambiguities or to make changes which
                              do not adversely affect the interests of Rights
                              holders (other than the Acquiring Person).



                                       -2-
<PAGE>   55

Voting Rights:                Rights will not have any voting rights.

Anti-Dilution
Provisions:                   Rights will have the benefit of certain customary
                              anti-dilution provisions.

Taxes:                        The Rights distribution should not be taxable for
                              federal income tax purposes. However, following an
                              event which renders the Rights exercisable or upon
                              redemption of the Rights, stockholders may
                              recognize taxable income.

         The foregoing is a summary of certain principal terms of the
Stockholder Rights Plan only and is qualified in its entirety by reference to
the detailed terms of the Rights Agreement dated as of March 24, 1992, between
the Company and the Rights Agent.

                                       -3-

<PAGE>   1
                                    EXHIBIT 2

                                  SYBASE, INC.

                                       and

                        THE FIRST NATIONAL BANK OF BOSTON

                                  Rights Agent

                                 AMENDMENT NO. 1

                      TO PREFERRED SHARES RIGHTS AGREEMENT

                            Dated as of July 15, 1994
<PAGE>   2
                                 AMENDMENT NO. 1

                       TO PREFERRED SHARES RIGHT AGREEMENT

         This Amendment No. 1 to Preferred Shares Rights Agreement is entered
into by and between Sybase, Inc., a Delaware corporation (the "Company"), and
The First National Bank of Boston ( the "Rights Agent").

                                 R E C I T A L S

A.       On March 24, 1992, the Company and the Rights Agent entered into a
         Preferred Shares Rights Agreement (the "Agreement").

B.       Section 27 of the Agreement provides that the Company may supplement or
         amend the Agreement in any respect without the approval of any holders
         of Rights and the Rights Agent shall, if the Company so directs,
         execute such supplement or amendment.

C.       On January 27,1994, the Board of Directors of the Company adopted an
         amendment to the Agreement pursuant to which the Purchase Price set
         forth in Section 7 (b) of the Agreement was amended to $250.00, after
         giving effect to the two-for-one stock split of the Company's Common
         Stock effected in November 1993.

                                A G R E E M E N T

         NOW THEREFORE, the Company and the Rights Agent agree as follows:

1.       Section 7 (b) of the Agreement shall be amended in its entirety to read
         as follows:

                  " The Purchase Price for each one-thousandth of a Preferred
                  Share issuable pursuant to the exercise of a Right shall
                  initially be $250.00 (after giving effect to the two-for-one
                  split of the Company's Common Stock effected in November
                  1993), shall be subject to adjustment from time-to-time as
                  provided in Sections 11 and 13 hereof and shall be payable in
                  lawful money of the United States of America in accordance
                  with paragraph (c) below."

2.       Capitalized terms not otherwise defined herein shall have the meanings
         set forth in the Agreement.

3.       In all other respects, the Agreement shall continue in full force and
         effect without change.
<PAGE>   3
         IN WITNESS WHEREOF; the Company and the Rights Agent have executed this
Amendment No. 1 as of the later of the dates set forth below, to be effective as
of January 27, 1994.

July 15, 1994                          SYBASE, INC.

                                       By:   /s/ Mitch Gaynor
                                             ------------------------
July 15, 1994                          THE FIRST NATIONAL BANK OF BOSTON


                                       By:   /s/ Kenyon Bissell
                                             ------------------------

                                       -2-

<PAGE>   1
                                    EXHIBIT 3

                                  SYBASE, INC.

                                       and

                        THE FIRST NATIONAL BANK OF BOSTON

                                  Rights Agent

                                 AMENDMENT NO. 2

                      TO PREFERRED SHARES RIGHTS AGREEMENT

                         Dated as of September 25, 1996
<PAGE>   2
                       AMENDMENT NO. 2 TO RIGHTS AGREEMENT
                      PURSUANT TO ACTION BY WRITTEN CONSENT
                          OF THE BOARD OF DIRECTORS OF
                       SYBASE, INC. DATED AUGUST 26, 1996

         This Amendment No. 2 to Preferred Shares Rights Agreement is entered
into by and between Sybase, Inc., a Delaware corporation (the "Company"), and
The First National Bank of Boston (the "Rights Agent").

         Section 1(a) of the Rights Agreement dated as of March 24, 1992 between
Sybase, Inc., a Delaware corporation (the "Company") and The First National Bank
of Boston is amended to read 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 15% or more of the Common Shares then outstanding, but shall
not include the Company, any subsidiary of the Company or any employee benefit
plan of the Company or of any Subsidiary of the Company, or any entity holding
Common Shares for or pursuant to the terms of any such plan. Notwithstanding the
foregoing, no Person shall be deemed to be an Acquiring Person if (i) as the
result of an acquisition of Common Shares by the Company which, by reducing the
number of shares outstanding, increases the proportionate number of shares
beneficially owned by such Person to 15% or more of the Common Shares of the
Company then outstanding; provided, however, that if a Person shall become the
Beneficial Owner of 15% or more of the Common Shares of the Company then
outstanding by reason of share purchases by the Company and shall, after such
share purchases by the Company, become the Beneficial Owner of any additional
Common Shares of the Company, then such Person shall be deemed to be an
Acquiring Person, or (ii) the Board of Directors of the Company determines in
good faith that a Person who would otherwise be an "Acquiring Person," as
defined pursuant to the provisions of this paragraph (a), has become such
inadvertently (including, without limitation, because (A) such Person was
unaware that it beneficially owned a percentage of the Common Shares that would
otherwise cause such Person to be an "Acquiring Person," as defined pursuant to
the provisions of this paragraph (a), or (B) such Person was aware of the extent
of the Common Shares it beneficially owned but had no actual knowledge of the
consequences of such beneficial ownership under this Agreement) and without any
intention of changing or influencing control of the Company, and if such Person
divested or divests as promptly as practicable a sufficient number of Common
Shares so that such Person would no longer be an "Acquiring Person," as defined
pursuant to the provisions of this paragraph (a), then such Person shall not be
deemed to be or to have become an "Acquiring Person" for any purposes of this
Agreement; or (iii) such Person reports Beneficial Ownership of Common Shares on
Schedule 13G under the Securities Exchange Act of 1934, as amended, representing
more than 15% but less than 20% of the Common Shares of the Company then
outstanding and utilizes said Schedule 13G in lieu of a Schedule 13D for such
reporting on the basis that such Person has no intention of changing or
influencing control of the Company.

<PAGE>   3
         Notwithstanding the foregoing, Lotus Development Corporation ("Lotus")
shall not be considered an "Acquiring Person" as a result of being, at any date,
the Beneficial Owner of that number of Common Shares which it is permitted or
required to purchase on or before such date in accordance with the provisions of
the Series F Preferred Stock Purchase Agreement dated as of September 21, 1989
between the Company and Lotus (the "Lotus Purchase Agreement"); provided,
however, that if after the date hereof, (i) Lotus shall become the Beneficial
Owner of any Common Shares in excess of that number of Common Shares which it is
permitted or required to purchase in accordance with the provisions of the Lotus
Purchase Agreement, (ii) the Lotus Purchase Agreement shall be terminated in
accordance with its terms, by mutual agreement between Lotus and the Company or
otherwise or (iii) the provisions of Section 8.1.1 or 8.1.2 of the Lotus
Purchase Agreement shall come into effect so as to release Lotus from the
ownership limitations set forth in Section 8.1, then if Lotus would otherwise be
an Acquiring Person, it shall be deemed to be an Acquiring Person and all Common
Shares then beneficially owned by Lotus shall be counted for purposes of
determining whether Lotus is an Acquiring Person."

         In all other respects, the Agreement shall continue in full force and
effect without change.

         IN WITNESS WHEREOF, the Company and the Rights Agent have executed this
Amendment No. 2 as of the later of the dates set forth below, to be effective as
of August 26, 1996.

September 24, 1996                     SYBASE, INC.

                                       By:   /s/ Laurie B. Keating
                                             ------------------------
September 25, 1996                     THE FIRST NATIONAL BANK OF BOSTON

                                       By:   /s/ Geoffrey D. Anderson
                                             ------------------------

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