BAY APARTMENT COMMUNITIES INC
8-A12B, 1998-03-11
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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

                                    FORM 8-A

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

                         BAY APARTMENT COMMUNITIES, INC.
               --------------------------------------------------
               (Exact name of registrant as specified in charter)


          MARYLAND                                                77-0404318
- ----------------------------                                 -------------------
(State or other jurisdiction                                    (IRS employer
        of incorporation)                                    identification no.)


           4340 STEVENS CREEK BOULEVARD, SUITE 275, SAN JOSE, CA 95129
           -----------------------------------------------------------
               (Address of principal executive offices) (Zip code)


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

                                                         Name of each exchange
    Title of each class                                  on which each class is
    to be so registered                                  to be registered
    -------------------                                  ----------------------

    PREFERRED STOCK PURCHASE RIGHTS                      NEW YORK STOCK EXCHANGE
                                                         PACIFIC EXCHANGE


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


                                      NONE
                                ----------------
                                (Title of Class)



<PAGE>   2

Item 1.  DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED.

         On March 8, 1998, the Board of Directors of the Company adopted a
Shareholder Rights Agreement (the "Rights Agreement"). The following description
of the terms of the Rights Agreement does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement which is attached
hereto as an exhibit and is incorporated herein by reference.

         Pursuant to the terms of the Rights Agreement, the Board of Directors
declared a dividend distribution of one Preferred Stock Purchase Right (a
"Right") for each outstanding share of Common Stock of the Company (the "Common
Stock") to stockholders of record as of the close of business on March 10, 1998
(the "Record Date"). In addition, one Right will automatically attach to each
share of Common Stock issued between the Record Date and the Distribution Date
(as hereinafter defined). Each Right entitles the registered holder thereof to
purchase from the Company a unit consisting of one one-thousandth of a share (a
"Unit") of Series E Junior Participating Cumulative Preferred Stock, par value
$0.01 per share (the "Preferred Stock"), at a cash exercise price of $160.00 per
Unit (the "Exercise Price"), subject to adjustment.

         Initially, the Rights are not exercisable and are attached to and trade
with all outstanding shares of Common Stock outstanding as of, and issued
subsequent to, the Record Date. The Rights will separate from the Common Stock
and will become exercisable upon the earlier of (i) the close of business on
the tenth calendar day following the first public announcement that a person or
group of affiliated or associated persons has acquired beneficial ownership of
10% or more of the outstanding shares of Common Stock (an "Acquiring Person")
(the date of said announcement being referred to as the "Stock Acquisition
Date"), or (ii) the close of business on the tenth business day (or such later
calendar day as the Board of Directors may determine) following the commencement
of a tender offer or exchange offer that would result upon its consummation in a
person or group becoming the beneficial owner of 10% or more of the outstanding
shares of Common Stock (the earlier of such dates being herein referred to as
the "Distribution Date").

         In the case of certain stockholders of the Company who beneficially
owned 10% or more of the outstanding shares of the Company's Common Stock as of
March 9, 1998 (such stockholders are referred to in the Rights Agreement as
"grandfathered persons"), the Rights generally will be distributed only if any
such stockholder acquires or proposes to acquire additional shares of the
Company's Common Stock. In addition, a "grandfathered person" generally will
become an Acquiring Person only if such person acquires additional shares of the
Company's Common Stock.

         Until the Distribution Date (or earlier redemption, exchange or
expiration of the Rights), (a) the Rights will be evidenced by the Common Stock
certificates and will be

                                        2

<PAGE>   3

transferred with and only with such Common Stock certificates, (b) new Common
Stock certificates issued after the Record Date will contain a notation
incorporating the Shareholder Rights Agreement by reference, and (c) the
surrender for transfer of any certificates for Common Stock will also constitute
the transfer of the Rights associated with the Common Stock represented by such
certificate.

         The Rights are not exercisable until the Distribution Date and will
expire at the close of business on March 9, 2008, unless previously redeemed or
exchanged by the Company as described below.

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

         In the event that a Stock Acquisition Date occurs, proper provision
will be made so that each holder of a Right (other than an Acquiring Person or
associates or affiliates thereof, whose Rights shall become null and void) will
thereafter have the right to receive upon exercise that number of Units of
Preferred Stock of the Company having a market value of two times the exercise
price of the Right (such right being referred to as the "Subscription Right").
In the event that, at any time following the Stock Acquisition Date, (i) the
Company consolidates with, or merges with and into, any other person, and the
Company is not the continuing or surviving corporation, (ii) any person
consolidates with the Company, or merges with and into the Company and the
Company is the continuing or surviving corporation of such merger and, in
connection with such merger, all or part of the shares of Common Stock are
changed into or exchanged for stock or other securities of any other person or
cash or any other property, or (iii) 50% or more of the Company's assets or
earning power is sold, mortgaged or otherwise transferred, each holder of a
Right shall thereafter have the right to receive, upon exercise, common stock of
the acquiring company having a market value equal to two times the exercise
price of the Right (such right being referred to as the "Merger Right"). The
holder of a Right will continue to have the Merger Right whether or not such
holder has exercised the Subscription Right. Rights that are or were
beneficially owned by an Acquiring Person may (under certain circumstances
specified in the Rights Agreement) become null and void.

         At any time after a person becomes an Acquiring Person, the Board of
Directors may, at its option, exchange all or any part of the then outstanding
and exercisable Rights for shares of Common Stock or Units of Preferred Stock at
an exchange ratio specified in the Rights Agreement. Notwithstanding the
foregoing, the Board of Directors generally will not be empowered to effect such
exchange at any time after any person becomes the beneficial owner of 50% or
more of the Common Stock of the Company.


                                        3

<PAGE>   4

         The Exercise Price payable, and the number of Units of Preferred Stock
or other securities or property issuable, upon exercise of the Rights are
subject to adjustment from time to time to prevent dilution (i) in the event of
a stock dividend on, or a subdivision, combination or reclassification of, the
Preferred Stock, (ii) if holders of the Preferred Stock are granted certain
rights or warrants to subscribe for Preferred Stock or convertible securities at
less than the current market price of the Preferred Stock, or (iii) upon the
distribution to holders of the Preferred Stock of evidences of indebtedness or
assets (excluding regular quarterly cash dividends) or of subscription rights or
warrants (other than those referred to above).

         With certain exceptions, no adjustment in the Exercise Price will be
required until cumulative adjustments amount to at least 1% of the Exercise
Price. The Company is not obligated to issue fractional Units. If the Company
elects not to issue fractional Units, in lieu thereof an adjustment in cash will
be made based on the fair market value of the Preferred Stock on the last
trading date prior to the date of exercise.

         The Rights may be redeemed in whole, but not in part, at a price of
$0.01 per Right (payable in cash, Common Stock or other consideration deemed
appropriate by the Board of Directors) by the Board of Directors only until the
earlier of (i) the time at which any person becomes an Acquiring Person or 
(ii) the expiration date of the Rights Agreement. Immediately upon the action of
the Board of Directors ordering redemption of the Rights, the Rights will
terminate and thereafter the only right of the holders of Rights will be to
receive the redemption price.

         The Rights Agreement may be amended by the Board of Directors in its
sole discretion until the time at which any person becomes an Acquiring Person. 
From and after the time at which any person becomes an Acquiring Person, the
Board of Directors may, subject to certain limitations set forth in the Rights
Agreement, amend the Rights Agreement only to cure any ambiguity, defect or
inconsistency, to shorten or lengthen any time period, or to make changes that
do not adversely affect the interests of Rights holders (excluding the interests
of an Acquiring Person or associates or affiliates thereof).

         Until a Right is exercised, the holder will have no rights as a
stockholder of the Company (beyond those as an existing stockholder), including
the right to vote or to receive dividends. While the distribution of the Rights
will not be taxable to stockholders or to the Company, stockholders may,
depending upon the circumstances, recognize taxable income in the event that the
Rights become exercisable for Units, other securities of the Company, other
consideration or for common stock of an acquiring company.

         Generally, until November 30, 1998 or such later date on which either
the Company or Avalon may terminate the Agreement and Plan of Merger, dated as
of March 9, 1998, by and between the Company and Avalon pursuant to Section
8.1(c) thereof (such date is referred to in the Rights Agreement as the
"Disinterested Administration Date"), the "disinterested directors" of the
Company have the exclusive power and authority to administer the Rights
Agreement and to exercise all rights and powers granted to the Board of
Directors of the Company or the Company thereunder. The Rights Agreement
provides that from and after the Disinterested Administration Date, the Board of
Directors will have the exclusive power and authority to administer the Rights
Agreement and to exercise all rights and powers granted to the Board of
Directors or the Company thereunder. Under the Rights Agreement, a
"disinterested director" generally is (i) any member of the Company's Board of
Directors who is not an employee of the Company and who is not an Acquiring
Person or an affiliate or associate thereof or a representative or nominee
thereof and who was a member of the Board prior to March 9, 1998, or (ii) any
person who subsequently becomes a member of the Company's Board of Directors who
is not an Acquiring Person or an affiliate or associate thereof or a
representative or nominee thereof, if such person's nomination is recommended or
approved by a majority of the "disinterested directors."

         The Rights Agreement between the Company and the Rights Agent
specifying the terms of the Rights, which includes as EXHIBIT B the Form of
Rights Certificate, is attached hereto as Exhibit 4.1 and is incorporated herein
by reference. The foregoing description of the Rights does not purport to be
complete and is qualified in its entirety by reference to the Rights Agreement
which is incorporated herein by reference.


                                        4

<PAGE>   5

ITEM 2 - EXHIBITS

<TABLE>
<S>             <C>
Exhibit 3.1     Articles Supplementary to the Articles of Incorporation of Bay
                Apartment Communities, Inc., classifying and designating the
                Series E Junior Participating Cumulative Preferred Stock.

Exhibit 4.1     Shareholder Rights Agreement, dated March 9, 1998, between Bay
                Apartment Communities, Inc. and American Stock Transfer and
                Trust Company, as Rights Agent (including the form of Rights
                Certificate as EXHIBIT B).
</TABLE>


                                       5
<PAGE>   6

                                    SIGNATURE


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


                                       BAY APARTMENT COMMUNITIES, INC.



Date: March 9, 1998                    By: /s/ Gilbert M. Meyer
                                           -------------------------------------
                                           Gilbert M. Meyer
                                           President and Chief Executive Officer



<PAGE>   7


                                  EXHIBIT INDEX


<TABLE>
<CAPTION>
EXHIBIT NO.                          DESCRIPTION
- -----------                          -----------

<S>           <C>
   3.1        Articles Supplementary to the Articles of Incorporation of Bay
              Apartment Communities, Inc., classifying and designating the
              Series E Junior Participating Cumulative Preferred Stock.

   4.1        Shareholder Rights Agreement, dated March 9, 1998, between Bay
              Apartment Communities, Inc. and American Stock Transfer and Trust
              Company, as Rights Agent (including the form of Rights Certificate
              as EXHIBIT B).
</TABLE>




<PAGE>   1
                                                                     EXHIBIT 3.1


                             ARTICLES SUPPLEMENTARY
             CLASSIFYING AND DESIGNATING A SERIES OF PREFERRED STOCK

                                       AS

            SERIES E JUNIOR PARTICIPATING CUMULATIVE PREFERRED STOCK

                                       OF

                         BAY APARTMENT COMMUNITIES, INC.


         We, Gilbert M. Meyer and Jeffrey B. Van Horn, being the President and
the Secretary, respectively, of BAY APARTMENT COMMUNITIES, INC., a corporation
organized and existing under the General Corporation Law of the State of
Maryland (the "Corporation"), in accordance with the provisions of Section 1-301
thereof, DO HEREBY CERTIFY:

         That pursuant to the authority conferred upon the Board of Directors by
the Articles of Incorporation of the Corporation, on March 13, 1995, the Board
of Directors adopted the following resolution creating a series of 1,000,000
shares of Preferred Stock designated as "Series E Junior Participating
Cumulative Preferred Stock":

                     "RESOLVED, that pursuant to the authority vested in
            the Board of Directors of the Corporation in accordance with
            the provisions of its Articles of Incorporation, a series of
            Preferred Stock, par value $.01 per share, of the Corporation
            be, and it hereby is, created, with such voting powers,
            preferences and relative, participating, optional or other
            special rights, and such qualifications, limitations or
            restrictions thereof, as follows:

         Section 1. DESIGNATION AND AMOUNT. There shall be a series of Preferred
Stock of the Corporation which shall be designated as "Series E Junior
Participating Cumulative Preferred Stock," par value $.01 per share (hereinafter
called "Series E Preferred Stock"), and the number of shares constituting such
series shall be 1,000,000. Such number of shares may be increased or decreased
by resolution of the Board of Directors and by the filing of articles of
amendment pursuant to the provisions of the General Corporation Law of the State
of Maryland stating that such increase or reduction has been so authorized;
PROVIDED, HOWEVER, that no decrease shall reduce the number of shares of Series
E Preferred Stock to a number less than that of the shares


<PAGE>   2



then outstanding plus the number of shares of Series E Preferred Stock issuable
upon exercise of outstanding rights, options or warrants or upon conversion of
outstanding securities issued by the Corporation.

         Section 2.  DIVIDENDS AND DISTRIBUTIONS.

         (A)  (i) Subject to the rights of the holders of any shares of any
series of preferred stock (or any similar stock) ranking prior and superior to
the Series E Preferred Stock with respect to dividends, the holders of shares of
Series E Preferred Stock, in preference to the holders of shares of common stock
and of any other junior stock, shall be entitled to receive, when, as and if
declared by the Board of Directors out of funds legally available for the
purpose, quarterly dividends payable in cash on the first day of March, June,
September and December in each year (each such date being referred to herein as
a "Quarterly Dividend Payment Date"), commencing on the first Quarterly Dividend
Payment Date after the first issuance of a share or fraction of a share of
Series E Preferred Stock, in an amount per share (rounded to the nearest cent)
equal to the greater of (a) $1.00 or (b) subject to the provisions 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 shares of
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 E Preferred Stock. The
multiple of cash and non-cash dividends declared on the common stock to which
holders of the Series E Preferred Stock are entitled, which shall be 1,000
initially but which shall be adjusted from time to time as hereinafter provided,
is hereinafter referred to as the "Dividend Multiple." In the event the
Corporation shall at any time after March 9, 1998 (the "Rights Declaration
Date") (i) declare or pay any dividend on the shares of common stock payable in
shares of common stock, or (ii) effect a subdivision or combination or
consolidation of the outstanding shares of common stock (by reclassification or
otherwise than by payment of a dividend in shares of common stock) into a
greater or lesser number of shares of common stock, then in each such case the
Dividend Multiple thereafter applicable to the determination of the amount of
dividends which holders of shares of Series E Preferred Stock shall be entitled
to receive shall be the Dividend Multiple applicable immediately prior to such
event multiplied 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.

              (ii) Notwithstanding anything else contained in this paragraph
(A), the Corporation shall, out of funds legally available for that purpose,
declare a dividend or distribution on the Series E Preferred Stock as provided
in this paragraph (A) immediately after it declares a dividend or distribution
on the shares of common stock (other than a dividend payable in shares of common
stock); provided that, in the event no dividend or distribution shall have been
declared on the shares of common stock during the period between any Quarterly
Dividend


                                       2
<PAGE>   3

Payment Date and the next subsequent Quarterly Dividend Payment Date, a dividend
of $1.00 per share on the Series E Preferred Stock shall nevertheless be payable
on such subsequent Quarterly Dividend Payment Date.

         (B)   Dividends shall begin to accrue and be cumulative on outstanding
shares of Series E Preferred Stock from the Quarterly Dividend Payment Date next
preceding the date of issue of such shares of Series E 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 E 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 E 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 in
accordance with applicable law a record date for the determination of holders of
shares of Series E Preferred Stock entitled to receive payment of a dividend or
distribution declared thereon, which record date shall be not more than such
number of days prior to the date fixed for the payment thereof as may be allowed
by applicable law.

         Section 3. VOTING RIGHTS. In addition to any other voting rights
required by law, the holders of shares of Series E Preferred Stock shall have
the following voting rights:

         (A)   Subject to the provision for adjustment hereinafter set forth,
each share of Series E Preferred Stock shall entitle the holder thereof to 1,000
votes on all matters submitted to a vote of the stockholders of the Corporation.
The number of votes which a holder of a share of Series E Preferred Stock is
entitled to cast, which shall initially be 1,000 but which may be adjusted from
time to time as hereinafter provided, is hereinafter referred to as the "Vote
Multiple." In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare or pay any dividend on shares of common stock
payable in shares of common stock, or (ii) effect a subdivision or combination
or consolidation of the outstanding shares of common stock (by reclassification
or otherwise than by payment of a dividend in shares of common stock) into a
greater or lesser number of shares of common stock, then in each such case the
Vote Multiple thereafter applicable to the determination of the number of votes
per share to which holders of shares of Series E Preferred Stock shall be
entitled shall be the Vote Multiple immediately prior to such event multiplied
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 E Preferred Stock and the holders of shares of common stock and
the holders of shares of any other capital stock of this Corporation having
general voting rights, shall vote together as one class on



                                       3
<PAGE>   4

all matters submitted to a vote of stockholders of the Corporation.

         (C)   (i)    Whenever, at any time or times, dividends payable on any
shares of Series E Preferred Stock shall be in arrears in an amount equal to at
least two full quarter dividends (whether or not declared and whether or not
consecutive), the holders of record of the outstanding shares of Series E
Preferred Stock shall have the exclusive right, voting separately as a single
class, to elect two directors of the Corporation at a special meeting of
shareholders of the Corporation or at the Corporation's next annual meeting of
shareholders, and at each subsequent annual meeting of shareholders, as provided
below. At elections for such directors, each share of Series E Preferred Stock
shall entitle the holder thereof to 1,000 votes in such elections.

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

               (iii)   The right of the holders of shares of Series E Preferred
         Stock, voting separately as a class, to elect two members of the Board
         of Directors of the Corporation



                                       4
<PAGE>   5

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

         (D)   Except as otherwise required by applicable law or as set forth
herein, holders of Series E 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 shares of common stock as set forth herein) for taking
any corporate action.

         Section 4.  CERTAIN RESTRICTIONS.

         (A)   Whenever dividends or distributions payable on the Series E
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 E 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 E Preferred
               Stock;

         (ii)  declare or pay dividends on or make any other distributions on
               any shares of stock ranking on a parity (either as to dividends
               or upon liquidation, dissolution or winding up) with the Series E
               Preferred Stock, except dividends paid ratably on the Series E
               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) except as permitted in subsection 4(A)(iv) below, redeem,
               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 E
               Preferred Stock, provided that the Corporation may at any time
               redeem, purchase



                                       5
<PAGE>   6

               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 E Preferred Stock; or

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

         (B)   The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under subsection (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 E Preferred Stock
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and canceled promptly after the acquisition thereof. All such
shares shall upon their cancellation become authorized but unissued shares of
preferred stock and may be reissued as part of a new series of preferred stock
to be created by resolution or resolutions of the Board of Directors, subject to
the conditions and restrictions on issuance set forth herein.

         Section 6. LIQUIDATION, DISSOLUTION OR WINDING UP. Upon any liquidation
(voluntary or otherwise), dissolution or winding up of the Corporation, no
distribution shall be made (x) to the holders of shares of stock ranking junior
(either as to dividends or upon liquidation, dissolution or winding up) to the
Series E Preferred Stock unless, prior thereto, the holders of Series E
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) $1,000.00 per share or
(2) an aggregate amount per share, subject to the provision for adjustment
hereinafter set forth, equal to 1,000 times the aggregate amount to be
distributed per share to holders of shares of common stock, or (y) to the
holders of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Series E Preferred Stock,
except distributions made ratably on the Series E Preferred Stock and all other
such parity stock in proportion to the total amounts to which the holders of all
such shares are entitled upon such liquidation, dissolution or winding up. In
the event the Corporation shall at any time after the Rights Declaration Date
(i) declare or pay any dividend on shares of common stock payable in shares of
common stock, or (ii) effect a subdivision or combination or consolidation of
the outstanding shares of common stock (by reclassification or otherwise than by
payment of a dividend in shares of common stock) into a greater or lesser number
of shares of




                                       6
<PAGE>   7

common stock, then in each such case the aggregate amount per share to which
holders of shares of Series E Preferred Stock were entitled immediately prior to
such event under clause (x) of the preceding sentence shall be adjusted by
multiplying such amount by a fraction, the numerator of which is the number of
shares of common stock outstanding immediately after such event and the
denominator of which is the number of shares of common stock that were
outstanding immediately prior to such event.

         Neither the consolidation of nor merging of the Corporation with or
into any other corporation or corporations, nor the sale or other transfer of
all or substantially all of the assets of the Corporation, shall be deemed to be
a liquidation, dissolution or winding up of the Corporation within the meaning
of this Section 6.

         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 E 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,
plus accrued and unpaid dividends, if any, payable with respect to the Series E
Preferred Stock. In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare or pay any dividend on shares of common stock
payable in shares of common stock, or (ii) effect a subdivision or combination
or consolidation of the outstanding shares of common stock (by reclassification
or otherwise than by payment of a dividend in shares of common stock) into a
greater or lesser number of shares of common stock, then in each such case the
amount set forth in the preceding sentence with respect to the exchange or
change of shares of Series E Preferred Stock shall be adjusted by multiplying
such amount by a fraction, the numerator of which is the number of shares of
common stock outstanding immediately after such event and the denominator of
which is the number of shares of common stock that were outstanding immediately
prior to such event.

         Section 8. REDEMPTION. The shares of Series E Preferred Stock shall not
be redeemable; PROVIDED, HOWEVER, that the foregoing shall not limit the ability
of the Corporation to purchase or otherwise deal in such shares to the extent
otherwise permitted hereby and by law.

         Section 9. RANKING. Unless otherwise expressly provided in the Articles
of Incorporation or Articles Supplementary relating to any other series of
preferred stock of the Corporation, the Series E Preferred Stock shall rank
junior to every other series of the Corporation's preferred stock previously or
hereafter authorized, as to the payment of dividends and the distribution of
assets on liquidation, dissolution or winding up and shall rank senior to the
common stock.

         Section 10. AMENDMENT. Neither these Articles Supplementary nor the
Articles of



                                       7
<PAGE>   8

Incorporation of the Corporation may be amended in any manner which would
materially alter or change the powers, preferences or special rights of the
Series E 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 E
Preferred Stock, voting separately as a class.

         Section 11. FRACTIONAL SHARES. Shares of Series E Preferred Stock may
be issued in whole shares or in any fraction of a share that is one
ten-thousandth (1/1,000th) of a share or any integral multiple of such fraction,
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 shares
of Series E Preferred Stock. In lieu of fractional shares, the Corporation may
elect to make a cash payment as provided in the Rights Agreement for fractions
of a share other than one ten-thousandth (1/1,000th) of a share or any integral
multiple thereof."

        The Corporation has caused these Articles Supplementary to be executed
in its name and on its behalf by the President of the Corporation who
acknowledges that these Articles Supplementary are the act of the Corporation
and that to the best of his knowledge, information and belief and under
penalties for perjury, all matters and facts contained in these Articles
Supplementary are true in all material respects.


                                       8
<PAGE>   9

         IN WITNESS WHEREOF, these Articles Supplementary have been executed on
behalf of the Corporation by its President and attested by its Secretary this
9th day of March, 1998.

                                           BAY APARTMENT COMMUNITIES, INC.


                                           By: /s/ Gilber M. Meyer
                                               ---------------------------
                                               Gilbert M. Meyer
                                               President


(SEAL)


ATTEST:


By: /s/ Jeffrey B. Van Horn
    ---------------------------
    Jeffrey B. Van Horn
    Secretary




                                       9


<PAGE>   1
                                                                     EXHIBIT 4.1


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





                         BAY APARTMENT COMMUNITIES, INC.



                                       and



                   AMERICAN STOCK TRANSFER AND TRUST COMPANY,



                                 as Rights Agent











                          Shareholder Rights Agreement

                            Dated as of March 9, 1998






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


<PAGE>   2



                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
Section                                                                                   Page
- -------                                                                                   ----

<S> <C>                                                                                   <C>
1.  Certain Definitions.....................................................................1

2.  Appointment of Rights Agent.............................................................8

3.  Issue of Right Certificates.............................................................8

4.  Form of Right Certificates.............................................................10

5.  Countersignature and Registration......................................................11

6.  Transfer, Split Up, Combination and Exchange of Right Certificates; Mutilated,
      Destroyed, Lost or Stolen Right Certificates.........................................12

7.  Exercise of Rights; Exercise Price; Expiration Date of Rights..........................13

8.  Cancellation and Destruction of Right Certificates.....................................15

9.  Reservation and Availability of Preferred Stock........................................15

10. Preferred Stock Record Date............................................................17

11. Adjustment of Exercise Price, Number and Kind of Shares or Number of Rights............17

12. Certificate of Adjusted Exercise Price or Number of Shares.............................26

13. Consolidation, Merger or Sale or Transfer of Assets or Earning Power...................26

14. Fractional Rights and Fractional Shares................................................30

15. Rights of Action.......................................................................30

16. Agreement of Right Holders.............................................................31

17. Right Certificate Holder Not Deemed a Shareholder......................................31

18. Concerning the Rights Agent............................................................32

19. Merger or Consolidation or Change of Name of Rights Agent..............................32
</TABLE>


                                        i

<PAGE>   3

<TABLE>
<S> <C>                                                                                   <C>

20. Duties of Rights Agent.................................................................33

21. Change of Rights Agent.................................................................35

22. Issuance of New Right Certificates.....................................................36

23. Redemption.............................................................................36

24. Exchange...............................................................................37

25. Notice of Certain Events...............................................................39

26. Notices................................................................................40

27. Supplements and Amendments.............................................................41

28. Successors.............................................................................42

29. Determinations and Actions by the Board of Directors and the Disinterested
       Directors...........................................................................42

30. Benefits of this Agreement.............................................................43

31. Severability...........................................................................43

32. Governing Law..........................................................................44

33. Counterparts...........................................................................44

34. Descriptive Headings...................................................................44


Exhibit A -- Articles Supplementary to the Articles of Incorporation classifying
              and designating the Series E Junior Participating Cumulative
              Preferred Stock

Exhibit B -- Form of Right Certificate
</TABLE>



                                       ii

<PAGE>   4

                          SHAREHOLDER RIGHTS AGREEMENT


         Agreement, dated as of March 9, 1998 between Bay Apartment Communities,
Inc., a Maryland corporation (the "Company"), and American Stock Transfer and
Trust Company, a New York corporation (the "Rights Agent").


                               W I T N E S S E T H

         WHEREAS, the Board of Directors of the Company desires to provide
shareholders of the Company with the opportunity to benefit from the long-term
prospects and value of the Company and to ensure that shareholders of the
Company receive fair and equal treatment in the event of any proposed takeover
of the Company; and

         WHEREAS, effective as of March 9, 1998 the Board of Directors of the
Company authorized and declared a dividend distribution of one Right (as such
term is hereinafter defined) for each outstanding share of Common Stock, par
value $0.01 per share, of the Company (the "Common Stock") outstanding as of the
close of business on March 10, 1998 (the "Record Date"), and contemplates the
issuance of one Right for each share of Common Stock of the Company issued
(whether originally issued (including upon the conversion of Excess Common Stock
(as such term is defined in the Company's Articles of Incorporation, as amended)
into Common Stock) or sold from the Company's treasury, except in the case of
treasury shares having associated Rights) between the Record Date and the
earlier of the Distribution Date or the Expiration Date (as such terms are
hereinafter defined), each Right initially representing the right to purchase
one one-thousandth of a share of Series E Junior Participating Cumulative
Preferred Stock of the Company having the rights, powers and preferences set
forth on EXHIBIT A hereto, upon the terms and subject to the conditions
hereinafter set forth (the "Rights"); and

         WHEREAS, the Company desires to appoint the Rights Agent to act as
rights agent hereunder, in accordance with the terms and conditions hereof;

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

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

              (a)   "ACQUIRING PERSON" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates (as such term is
hereinafter defined) and Associates (as such term is hereinafter defined) of
such Person, shall be the Beneficial Owner (as such term is hereinafter defined)
of 10% or more of the shares of Common Stock of the Company then outstanding,
but shall not include (i) the Company, (ii) any Subsidiary (as such term is
hereinafter defined) of the Company, (iii) any employee benefit plan or
compensation


<PAGE>   5

arrangement of the Company or any Subsidiary of the Company or (iv) any Person
holding shares of Common Stock of the Company organized, appointed or
established by the Company or any Subsidiary of the Company for or pursuant to
the terms of any such employee benefit plan or compensation arrangement (the
Persons described in clauses (i) through (iv) above are referred to herein as
"Exempt Persons"); PROVIDED, HOWEVER, that the term "Acquiring Person" shall not
include (A) any Grandfathered Person (as such term is hereinafter defined),
unless such Grandfathered Person after the Grandfathered Time (as such term is
hereinafter defined) becomes the Beneficial Owner of more than the Grandfathered
Percentage (as such term is hereinafter defined) applicable to such
Grandfathered Person of the shares of Common Stock then outstanding, or (B)
Avalon (as such term is hereinafter defined), or any of its Affiliates or
Associates, solely by reason of its execution of the Agreement and Plan of
Merger dated as of March 9, 1998 by and between the Company and Avalon (as 
amended from time to time, the "Merger Agreement").

         Notwithstanding the foregoing, no Person shall become an "Acquiring
Person" as the result of an acquisition by the Company of Common Stock of the
Company which, by reducing the number of shares outstanding, increases the
proportionate number of shares beneficially owned by such Person to 10% (or in
the case of a Grandfathered Person, the Grandfathered Percentage applicable to
such Grandfathered Person) or more of the shares of Common Stock of the Company
then outstanding; PROVIDED, HOWEVER, that if a Person shall become the
Beneficial Owner of 10% (or in the case of a Grandfathered Person, the
Grandfathered Percentage applicable to such Grandfathered Person) or more of the
shares of Common Stock 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 shares (other than pursuant to a
stock split, stock dividend or similar transaction) of Common Stock of the
Company and immediately thereafter be the Beneficial Owner of 10% (or in the
case of a Grandfathered Person, the Grandfathered Percentage applicable to such
Grandfathered Person) or more of the shares of Common Stock of the Company then
outstanding, then such Person shall be deemed to be an "Acquiring Person."

         In addition, notwithstanding the foregoing, a Person shall not be an
"Acquiring Person" if the Board of Directors of the Company determines that a
Person who would otherwise be an "Acquiring Person," as defined pursuant to the
foregoing provisions of this Section 1(a), has become such inadvertently, and
such Person divests as promptly as practicable (or within such period of time as
the Board of Directors of the Company determines is reasonable) a sufficient
number of shares of Common Stock of the Company so that such Person would no
longer be an "Acquiring Person," as defined pursuant to the foregoing provisions
of this Section 1(a).

              (b)   "ADJUSTMENT SHARES" shall have the meaning set forth in
Section 11(a)(ii) hereof.

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

                                        2

<PAGE>   6

this Agreement; PROVIDED, HOWEVER, that no Person who is a director or officer
of the Company shall be deemed an Affiliate or an Associate of any other
director or officer of the Company solely as a result of his or her position as
director or officer of the Company.

              (d)   "AVALON" shall mean Avalon Properties, Inc., a Maryland
corporation, together with all of its Affiliates and Associates.

              (e)   A Person shall be deemed the "BENEFICIAL OWNER" of, and
shall be deemed to "BENEFICIALLY OWN," any securities:

                    (i)    which such Person or any of such Person's Affiliates
         or Associates, directly or indirectly, beneficially owns (as determined
         pursuant to Rule 13d-3 of the Rules under the Exchange Act, as in
         effect on the date of this Agreement);

                    (ii)   which such Person or any of such Person's Affiliates
         or Associates, directly or indirectly, has:

                           (A)   the right to acquire (whether such right is
              exercisable immediately or only after the passage of time or upon
              the satisfaction of any conditions or both) pursuant to 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 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 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; (2) securities issuable upon
              exercise of these Rights at any time prior to the occurrence of a
              Triggering Event; or (3) securities issuable upon exercise of
              Rights from and after the occurrence of a Triggering Event, which
              Rights were acquired by such Person or any of such Person's
              Affiliates or Associates prior to the Distribution Date or
              pursuant to Sections 3(a), 11(i) or 22 hereof; or

                           (B)   the right to vote pursuant to any agreement,
              arrangement or understanding (whether or not in writing);
              PROVIDED, HOWEVER, that a Person shall not be deemed the
              "Beneficial Owner" of, or to "beneficially own," any security
              under this clause (B) if the agreement, arrangement or
              understanding to vote such security (1) arises solely from a
              revocable proxy given in response to a public proxy or consent
              solicitation made pursuant to, and in accordance with, the Rules
              of the Exchange Act and (2) is not also then reportable by such
              person on Schedule 13D under the Exchange Act (or any comparable
              or successor

                                        3

<PAGE>   7

              report); or

                           (C)   the right to dispose of pursuant to any
              agreement, arrangement or understanding (whether or not in
              writing) (other than customary arrangements with and between
              underwriters and selling group members with respect to a bona fide
              public offering of securities); 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 offering of
         securities) for the purpose of acquiring, holding, voting (except
         pursuant to a revocable proxy as described in clause (B) of Section
         1(d)(ii) hereof) or disposing of any securities of the Company;

PROVIDED, HOWEVER, that (1) no Person engaged in business as an underwriter of
securities shall be deemed the Beneficial Owner of any securities acquired
through such Person's participation as an underwriter in good faith in a firm
commitment underwriting until the expiration of 40 days after the date of such
acquisition, and (2) no Person who is a director or an officer of the Company
shall be deemed, as a result of his or her position as director or officer of
the Company, the Beneficial Owner of any securities of the Company that are
beneficially owned by any other director or officer of the Company.

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

              (g)   "CLOSE OF BUSINESS" on any given date shall mean 5:00 P.M.,
New York, New York time, on such date; PROVIDED, HOWEVER, that if such date is
not a Business Day it shall mean 5:00 P.M., New York, New York time, on the next
succeeding Business Day.

              (h)   "COMMON STOCK" when used in reference to the Company shall
mean the common stock, par value $0.01 per share, of the Company or any other
shares of capital stock of the Company into which such stock shall be
reclassified or changed. "Common Stock" when used with reference to any Person
other than the Company organized in corporate form shall mean (i) the capital
stock or other equity interest of such Person with the greatest voting power,
(ii) the equity securities or other equity interest having power to control or
direct the management of such Person or (iii) if such Person is a Subsidiary of
another Person, the Person or Persons which ultimately control such
first-mentioned Person and which have issued any such outstanding capital stock,
equity securities or equity interest. "Common Stock" when used with reference to
any Person not organized in corporate form shall mean units of

                                        4

<PAGE>   8

beneficial interest which (x) shall represent the right to participate generally
in the profits and losses of such Person (including without limitation any
flow-through tax benefits resulting from an ownership interest in such Person)
and (y) shall be entitled to exercise the greatest voting power of such Person
or, in the case of a limited partnership, shall have the power to remove or
otherwise replace the general partner or partners.

              (i)   "CURRENT VALUE" shall have the meaning set forth in
Section 11(a)(iii)

hereof.

              (j)   "DEPOSITARY AGENT" shall have the meaning set forth in
Section 7(c) hereof.

              (k)   "DISINTERESTED ADMINISTRATION DATE" shall mean November 30,
1998 or such later date as may be set forth in Section 8.1(c) of the Merger
Agreement; provided, however, that in no event shall the Disinterested
Administration Date be a date earlier than November 30, 1998.

              (l)   "DISINTERESTED DIRECTOR" shall mean (i) any member of the
Company's Board of Directors who is not an employee of the Company or any of its
Subsidiaries and is not an Acquiring Person or an Affiliate or Associate of any
such Person or a representative or nominee of an Acquiring Person or any such
Affiliate or Associate and was a member of the Company's Board of Directors
prior to the date of this Agreement, and (ii) any Person who subsequently
becomes a member of the Company's Board of Directors who is not an Acquiring
Person or an Affiliate or Associate of any such Person or a representative or
nominee of an Acquiring Person or of any such Affiliate or Associate, if such
Person's nomination is recommended or approved by a Majority of the
Disinterested Directors.

              (m)   "DISTRIBUTION DATE" shall have the meaning defined in
Section 3(a) hereof.

              (n)   "EXEMPT PERSON" shall have the meaning set forth in the
definition of "Acquiring Person".

              (o)   "EXERCISE PRICE" shall have the meaning defined in
Section 4(a) hereof.

              (p)   "EXPIRATION DATE" and "FINAL EXPIRATION DATE" shall have the
meanings set forth in Section 7(a) hereof.

              (q)   "FAIR MARKET VALUE" of any securities or other property
shall be as determined in accordance with Section 11(d) hereof.

              (r)   "FIDELITY" shall mean FMR Corp.

              (s)   "GRANDFATHERED PERCENTAGE" shall mean (A) with respect to
Avalon, 19.95%; provided, however, that such percentage shall only apply with
respect to shares, if any, of the Company's Common Stock Beneficially Owned by
Avalon as a result of the Stock Option Agreement dated as of March 9, 1998
between the Company, as issuer, and Avalon (the "Stock Option Agreement") and
the transactions contemplated thereby and by the Merger Agreement, including any
issuances pursuant thereto; and provided further, however, that, in the event
Avalon shall sell, transfer, or otherwise dispose of any outstanding shares of
Common Stock of the Company at any time after the Grandfathered Time (including
without limitation pursuant to the transfer or assignment of all or any of its
rights or obligations under the Stock Option Agreement), the Grandfathered
Percentage applicable to Avalon shall, subsequent to such sale, transfer or
disposition, mean the lesser of (i) the Grandfathered Percentage applicable to
Avalon as in effect immediately prior to such sale, transfer or

                                        5

<PAGE>   9

disposition or (ii) the percentage of outstanding shares of Common Stock of the
Company that Avalon beneficially owns immediately following such sale, transfer
or disposition, (B) with respect to Fidelity, 11.95%, and (C) with respect to
LaSalle, 16.37%.

              (t)   "GRANDFATHERED PERSON" shall mean any of the following
Persons: (A) Avalon, solely with respect to shares, if any, of the Company's
Common Stock Beneficially Owned by Avalon as a result of the Stock Option
Agreement and the transactions contemplated thereby and by the Merger Agreement,
including any issuances pursuant thereto, (B) Fidelity, and (C) LaSalle.
Notwithstanding anything to the contrary provided in this Agreement, Avalon
shall cease to be a Grandfathered Person in the event that at any time after the
Grandfathered Time Avalon becomes the Beneficial Owner of less than 10% of the
shares of Common Stock of the Company outstanding at such time.

              (u)   "GRANDFATHERED TIME" shall mean 12:00 a.m., Eastern time, on
Monday, March 9, 1998.

              (v)   "LASALLE" shall mean LaSalle Advisors Capital Management,
Inc., together with ABKB/LaSalle Securities Limited Partnership, a Maryland
limited partnership.

              (w)   "MAJORITY OF THE DISINTERESTED DIRECTORS" shall mean the
majority of the entire number of Disinterested Directors then in office.

              (x)   "PERSON" shall mean (a) an individual, a corporation, a
partnership, an association, a joint stock company, a trust, a business trust, a
government or political subdivision, any unincorporated organization, or any
other association or entity, and (b) a "group" as that term is used for purposes
of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended.

              (y)   "PREFERRED STOCK" shall mean shares of Series A Junior
Participating Cumulative Preferred Stock, par value $0.01 per share, of the
Company having the rights and preferences set forth in the form of Articles
Supplementary attached hereto as EXHIBIT A.

              (z)   "PREFERRED STOCK EQUIVALENTS" shall have the meaning set
forth in Section 11(b) hereof.

              (aa)  "PRINCIPAL PARTY" shall have the meaning defined in 
Section 13(b) hereof.

              (bb)  "REDEMPTION PRICE" shall have the meaning defined in
Section 23 hereof.

              (cc)  "REGISTERED COMMON STOCK" shall have the meaning set forth
in Section 13(b) hereof.

              (dd)  "RIGHT CERTIFICATE" shall have the meaning set forth in
Section 3(a) hereof.

              (ee)  "SECTION 11(a)(II) EVENT" shall have the meaning defined in
Section

                                        6

<PAGE>   10

11(a)(ii) hereof.

              (ff)  "SECTION 11(a)(II) TRIGGER DATE" shall have the meaning set
forth in Section 11(a)(iii) hereof.

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

              (hh)  "SECTION 24(a)(I) EXCHANGE RATIO" shall have the meaning set
forth in Section 24(a)(i) hereof.

              (ii)  "SECTION 24(a)(II) EXCHANGE RATIO" shall have the meaning
set forth in Section 24(a)(ii) hereof.

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

              (kk)  "STOCK ACQUISITION DATE" shall mean the date of the first
public announcement (which for purposes of this definition shall include,
without limitation, the issuance of a press release or the filing of a
publicly-available report or other document with the Securities and Exchange
Commission or any other governmental agency) by the Company, acting pursuant to
a resolution adopted by the Board of Directors of the Company, or an Acquiring
Person that an Acquiring Person has become such.

              (ll)  "SUBSIDIARY" shall mean, with reference to any Person, any
corporation or other entity of which securities or other ownership interests
having ordinary voting power sufficient, in the absence of contingencies, to
elect a majority of the board of directors or other persons performing similar
functions of such corporation or other entity are at the time directly or
indirectly beneficially owned or otherwise controlled by such Person either
alone or together with one or more Affiliates of such Person.

              (mm)  "SUBSTITUTION PERIOD" shall have the meaning set forth in
Section 11(a)(iii) hereof.

              (nn)  "TRIGGERING EVENT" shall mean any Section 11(a)(ii) Event or
any Section 13 Event.

         Section 2. APPOINTMENT OF RIGHTS AGENT. The Company hereby appoints the
Rights Agent to act as agent for the Company and the holders of the Rights (who,
in accordance with Section 3 hereof, shall prior to the Distribution Date (as
hereinafter defined in Section 3(a)) also be the holders of the Common Stock of
the Company) in accordance with the terms and conditions hereof, and the Rights
Agent hereby accepts such appointment. The Company may from time to time appoint
such Co-Rights Agents as it may deem necessary or desirable. In the event the
Company appoints one or more Co-Rights Agents, the respective duties of the

                                        7

<PAGE>   11

Rights Agent and any Co-Rights Agents shall be as the Company shall determine.
The Company shall give notice to the Rights Agent of the appointment of one or
more Co-Rights Agents and the respective duties of the Rights Agent and any such
Co-Rights Agents.

         Section 3. ISSUE OF RIGHT CERTIFICATES.

              (a)   From the date hereof until the earlier of (i) the Close of
Business on the tenth calendar day after the Stock Acquisition Date or (ii) the
Close of Business on the tenth Business Day (or such later calendar day, if any,
as the Board of Directors of the Company may determine in its sole discretion)
after the date a tender or exchange offer by any Person, other than an Exempt
Person, is first published or sent or given within the meaning of Rule 14d-4(a)
of the Exchange Act, or any successor rule, if, upon consummation thereof, such
Person would be the Beneficial Owner of 10% (or in the case of a Grandfathered
Person, the Grandfathered Percentage applicable to such Grandfathered Person) or
more of the shares of Common Stock of the Company then outstanding (including
any such date which is after the date of this Agreement and prior to the
issuance of the Rights) (the earliest of such dates being herein referred to as
the "Distribution Date"), (x) the Rights will be evidenced (subject to the
provisions of Section 3(b) hereof) by the certificates for the Common Stock of
the Company registered in the names of the holders of the Common Stock of the
Company (which certificates for Common Stock of the Company shall be deemed also
to be certificates for Rights) and not by separate certificates, and (y) the
Rights will be transferable only in connection with the transfer of the
underlying shares of Common Stock of the Company. As soon as practicable after
the Distribution Date, the Rights Agent will, at the Company's expense send, by
first-class, insured, postage prepaid mail, to each record holder of the Common
Stock of the Company as of the Close of Business on the Distribution Date, at
the address of such holder shown on the records of the Company, one or more
certificates, in substantially the form of EXHIBIT B hereto (the "Right
Certificates"), evidencing one Right for each share of Common Stock of the
Company so held, subject to adjustment as provided herein. In the event that an
adjustment in the number of Rights per share of Common Stock of the Company has
been made pursuant to Section 11(o) hereof, the Company may make the necessary
and appropriate rounding adjustments (in accordance with Section 14(a) hereof)
at the time of distribution of the Right Certificates, so that Right
Certificates representing only whole numbers of Rights are distributed and cash
is paid in lieu of any fractional Rights. As of and after the Close of Business
on the Distribution Date, the Rights will be evidenced solely by such Right
Certificates.

              (b)   With respect to certificates for the Common Stock of the
Company issued prior to the Close of Business on the Record Date, the Rights
will be evidenced by such certificates for the Common Stock of the Company on or
until the Distribution Date (or the earlier redemption, expiration or
termination of the Rights), and the registered holders of the Common Stock of
the Company also shall be the registered holders of the associated Rights. Until
the Distribution Date (or the earlier redemption, expiration or termination of
the Rights), the transfer of any of the certificates for the Common Stock of the
Company outstanding prior

                                        8

<PAGE>   12

to the date of this Agreement shall also constitute the transfer of the Rights
associated with the Common Stock of the Company represented by such certificate.

              (c)   Certificates for the Common Stock of the Company issued
after the Record Date, but prior to the earlier of the Distribution Date or the
redemption, expiration or termination of the Rights, shall be deemed also to be
certificates for Rights, and shall bear a legend, substantially in the form set
forth below:

              This certificate also evidences and entitles the holder hereof to
              certain Rights as set forth in a Shareholder Rights Agreement
              between Bay Apartment Communities, Inc. and American Stock
              Transfer and Trust Company, as Rights Agent, dated as of March 9,
              1998, as amended, restated, renewed or extended from time to time
              (the "Rights Agreement"), the terms of which are hereby
              incorporated herein by reference and a copy of which is on file at
              the principal offices of Bay Apartment Communities, Inc. and the
              stock transfer administration office of the Rights Agent. 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. Bay Apartment
              Communities, Inc. may redeem the Rights at a redemption price of
              $0.01 per Right, subject to adjustment, under the terms of the
              Rights Agreement. Bay Apartment Communities, Inc. will mail to the
              holder of this certificate a copy of the Rights Agreement, as in
              effect on the date of mailing, without charge promptly after
              receipt of a written request therefor. Under certain
              circumstances, Rights issued to or held by Acquiring Persons or
              any Affiliates or Associates thereof (as defined in the Rights
              Agreement), and any subsequent holder of such Rights, may become
              null and void. The Rights shall not be exercisable, and shall be
              void so long as held, by a holder in any jurisdiction where the
              requisite qualification, if any, to the issuance to such holder,
              or the exercise by such holder, of the Rights in such jurisdiction
              shall not have been obtained or be obtainable.

With respect to such certificates containing the foregoing legend, the Rights
associated with the Common Stock of the Company represented by such certificates
shall be evidenced by such certificates alone until the Distribution Date (or
the earlier redemption, expiration or termination of the Rights), and the
transfer of any of such certificates shall also constitute the transfer of the
Rights associated with the Common Stock of the Company represented by such
certificates. In the event that the Company purchases or acquires any shares of
Common Stock of the Company after the Record Date but prior to the Distribution
Date, any Rights associated

                                        9

<PAGE>   13

with such Common Stock of the Company shall be deemed canceled and retired so
that the Company shall not be entitled to exercise any Rights associated with
the shares of Common Stock of the Company which are no longer outstanding. The
failure to print the foregoing legend on any such certificate representing
Common Stock of the Company or any defect therein shall not affect in any manner
whatsoever the application or interpretation of the provisions of Section 7(e)
hereof.

              (d)   Notwithstanding anything in this Agreement to the contrary,
in the event that prior to the earlier of the Distribution Date or the
redemption, expiration or termination of the Rights, any shares of Common Stock
of the Company are retired and canceled in connection with the conversion of
such shares to Excess Common Stock pursuant to Article VII and Article X of the
Company's Articles of Incorporation, as amended, then the associated Rights
shall be deemed to be similarly retired and canceled.

         Section 4. FORM OF RIGHT CERTIFICATES.

              (a)   The Right Certificates (and the forms of election to
purchase shares and of assignment and certificate to be printed on the reverse
thereof) shall each be substantially in the form of EXHIBIT B hereto and may
have such marks of identification or designation and such legends, summaries or
endorsements printed thereon as the Company may deem appropriate and as are not
inconsistent with the provisions of this Agreement, or as may be required to
comply with any applicable law, rule or regulation 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 customary usage. The Right Certificates shall be in a
machine printable format and in a form reasonably satisfactory to the Rights
Agent. Subject to the provisions of Section 11 and Section 22 hereof, the Right
Certificates, whenever distributed, shall be dated as of the Record Date, shall
show the date of countersignature, and on their face shall entitle the holders
thereof to purchase such number of one one-thousandths of a share of Preferred
Stock as shall be set forth therein at the price set forth therein (the
"Exercise Price"), but the number of such shares and the Exercise Price shall be
subject to adjustment as provided herein.

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

                                       10

<PAGE>   14

arrangement or understanding which has as a primary purpose or effect the
avoidance of Section 7(e) hereof, and any Right Certificate issued pursuant to
Section 6, Section 11 or Section 22 upon transfer, exchange, replacement or
adjustment of any other Right Certificate referred to in this sentence, shall
have deleted therefrom the second sentence of the existing legend on such Right
Certificate and in substitution therefor shall contain the following legend:

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

The Company shall give notice to the Rights Agent promptly after it becomes
aware of the existence and identity of any Acquiring Person or any Associate or
Affiliate thereof. The Company shall instruct the Rights Agent in writing of the
Rights which should be so legended. The failure to print the foregoing legend on
any such Right Certificate or any defect therein shall not affect in any manner
whatsoever the application or interpretation of the provisions of Section 7(e)
hereof.

         Section 5. COUNTERSIGNATURE AND REGISTRATION.

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


                                       11

<PAGE>   15

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

         Section 6. TRANSFER, SPLIT UP, COMBINATION AND EXCHANGE OF RIGHT
CERTIFICATES; MUTILATED, DESTROYED, LOST OR STOLEN RIGHT CERTIFICATES.

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

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



                                       12

<PAGE>   16

         Section 7. EXERCISE OF RIGHTS; EXERCISE PRICE; EXPIRATION DATE OF
RIGHTS.

              (a)   Subject to Section 7(e) hereof, the registered holder of any
Right Certificate may exercise the Rights evidenced thereby (except as otherwise
provided herein) in whole or in part at any time after the Distribution Date
upon surrender of the Right Certificate, with the form of election to purchase
and the certificate on the reverse side thereof duly executed, to the Rights
Agent at the office or offices of the Rights Agent designated for such purpose,
together with payment of the aggregate Exercise Price for the total number of
one one-thousandths of a share of Preferred Stock (or other securities, cash or
other assets, as the case may be) as to which such surrendered Rights are then
exercised, at or prior to the earlier of (i) the Close of Business on the tenth
anniversary of the date of this Agreement (the "Final Expiration Date"), (ii)
the time at which the Rights are redeemed as provided in Section 23 hereof or
(iii) the time at which such Rights are exchanged as provided in Section 24
hereof (the earlier of (i), (ii) or (iii) being herein referred to as the
"Expiration Date"). Except as set forth in Section 7(e) hereof and
notwithstanding any other provision of this Agreement, any Person who prior to
the Distribution Date becomes a record holder of shares of Common Stock of the
Company may exercise all of the rights of a registered holder of a Right
Certificate with respect to the Rights associated with such shares of Common
Stock of the Company in accordance with the provisions of this Agreement, as of
the date such Person becomes a record holder of shares of Common Stock of the
Company.

              (b)   The Exercise Price for each one one-thousandth of a share of
Preferred Stock pursuant to the exercise of a Right shall initially be $160.00,
shall be subject to adjustment from time to time as provided in Section 11 and
Section 13 hereof and shall be payable in lawful money of the United States of
America in accordance with Section 7(c) below.

              (c)   As promptly as practicable following the Distribution Date,
the Company shall deposit with a corporation, trust, bank or similar institution
in good standing organized under the laws of the United States or any State of
the United States, which is authorized under such laws to exercise corporate
trust or stock transfer powers and is subject to supervision or examination by a
federal or state authority (such institution is hereinafter referred to as the
"Depositary Agent"), certificates representing the shares of Preferred Stock
that may be acquired upon exercise of the Rights and the Company shall cause
such Depositary Agent to enter into an agreement pursuant to which the
Depositary Agent shall issue receipts representing interests in the shares of
Preferred Stock so deposited. Upon receipt of a Right Certificate representing
exercisable Rights, with the form of election to purchase and the certificate on
the reverse side thereof duly executed, accompanied by payment of the Exercise
Price for the shares to be purchased and an amount equal to any applicable
transfer tax (as determined by the Rights Agent) in cash, or by certified check
or bank draft payable to the order of the Company, the Rights Agent shall,
subject to Section 20(k) hereof, thereupon promptly (i) requisition from the
Depositary Agent (or make available, if the Rights Agent is the Depositary
Agent) depository receipts or certificates for the number of one one-thousandths



                                       13

<PAGE>   17

of a share of Preferred Stock to be purchased and the Company hereby irrevocably
authorizes the Depositary Agent to comply with all such requests, (ii) when
appropriate, requisition from the Company the amount of cash, if any, to be paid
in lieu of issuance of fractional shares in accordance with Section 14 hereof,
(iii) promptly after receipt of such certificates or depositary receipts, cause
the same to be delivered to or upon the order of the registered holder of such
Right Certificate, registered in such name or names as may be designated by such
holder and (iv) when appropriate, after receipt promptly deliver such cash to or
upon the order of the registered holder of such Right Certificate. In the event
that the Company is obligated to issue other securities (including Common Stock)
of the Company, pay cash or distribute other property pursuant to Section 11(a)
hereof, the Company will make all arrangements necessary so that such other
securities, cash or other property are available for distribution by the Rights
Agent, if and when appropriate. The payment of the Exercise Price may be made in
cash or by certified or bank check payable to the order of the Company, or by
wire transfer of immediately available funds to the account of the Company
(provided that notice of such wire transfer shall be given by the holder of the
related Right to the Rights Agent).

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

              (e)   Notwithstanding anything in this Agreement to the contrary,
from and after the first occurrence of a Section 11(a)(ii) Event or Section 13
Event, any 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 Associate or Affiliate of an Acquiring Person) who becomes a
transferee after the Acquiring Person becomes such or (iii) a transferee of an
Acquiring Person (or of any Associate or Affiliate of an Acquiring Person) 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, the shares of Common Stock of the Company associated with such Rights or
the Company, 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), shall be 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
ensure 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 Right Certificates
or other Person as a result of its failure to make any determinations with
respect to an Acquiring Person or any Affiliates or Associates of an Acquiring
Person or any transferee of any of them hereunder.

                                       14

<PAGE>   18

              (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 of Rights 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 Right 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 RIGHT CERTIFICATES. All
Right Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or any of its
agents, be delivered to the Rights Agent for cancellation or in canceled form,
or, if surrendered to the Rights Agent, shall be canceled by it, and no Right
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 Right Certificate purchased or acquired by the Company
otherwise than upon the exercise thereof. The Rights Agent shall deliver all
canceled Right Certificates to the Company.

         Section 9. RESERVATION AND AVAILABILITY OF PREFERRED STOCK.

              (a)   The Company covenants and agrees that it will cause to be
reserved and kept available out of its authorized and unissued shares of
Preferred Stock or any authorized and issued shares of Preferred Stock held in
its treasury, the number of shares of Preferred Stock that will be sufficient to
permit the exercise in full of all outstanding and exercisable Rights. Upon the
occurrence of any events resulting in an increase in the aggregate number of
shares of Preferred Stock issuable upon exercise of all outstanding Rights in
excess of the number then reserved, the Company shall make appropriate increases
in the number of shares so reserved.

              (b)   The Company shall use its best efforts to cause, from and
after such time as the Rights become exercisable, all shares of Preferred Stock
issued or reserved for issuance to be listed, upon official notice of issuance,
upon the principal national securities exchange, if any, upon which the Common
Stock of the Company is listed or, if the principal market for the Common Stock
of the Company is not on any national securities exchange, to be eligible for
quotation on the National Association of Securities Dealers Automated Quotation
System ("NASDAQ") or any successor thereto or other comparable quotation system.

              (c)   The Company shall use its best efforts to (i) file, as soon
as practicable following the earliest date after the occurrence of a Section
11(a)(ii) Event on which the consideration to be delivered by the Company upon
exercise of the Rights has been determined in accordance with Section 11(a)(iii)
hereof, or as soon as required by law following the Distribution Date, as the
case may be, a registration statement under the Securities Act of



                                       15

<PAGE>   19

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 that at all times meets 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 or (B) the Expiration Date. The Company will also take such
action as may be appropriate under, and which will ensure compliance with, the
securities or "blue sky" laws of the various states in connection with the
exercisability of the Rights. The Company may temporarily suspend, for a period
of time not to exceed ninety (90) days after the date determined in accordance
with the provisions 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 such suspension, the Company
shall issue a public announcement stating that the exercisability of the Rights
has been temporarily suspended, as well as a public announcement at such time as
the suspension is no longer in effect, in each case with prompt written notice
to the Rights Agent. Notwithstanding any such provision of this Agreement to the
contrary, the Rights shall not be exercisable in any jurisdiction unless the
requisite qualification in such jurisdiction shall have been obtained.

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

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

         Section 10. PREFERRED STOCK RECORD DATE. Each Person in whose name any
certificate for Preferred Stock (including any fraction of a share of Preferred
Stock) is issued upon the exercise of Rights shall for all purposes be deemed to
have become the holder of record of the shares of Preferred Stock represented
thereby on, and such certificate shall be dated, the date upon which the Right
Certificate evidencing such Rights was duly surrendered and payment of the
Exercise Price (and any applicable transfer taxes) was made; PROVIDED, HOWEVER,
that if the date of such surrender and payment is a date upon which the
Preferred Stock transfer books of



                                       16

<PAGE>   20

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 Stock transfer books of the
Company are open; and FURTHER PROVIDED, HOWEVER, that if delivery of shares of
Preferred Stock is delayed pursuant to Section 9(c), such Person shall be deemed
to have become the record holder of such shares of Preferred Stock only when
such shares first become deliverable. Prior to the exercise of the Right
evidenced thereby, the holder of a Right Certificate shall not be entitled to
any rights of a shareholder of the Company with respect to shares for which the
Rights shall be exercisable, including, without limitation, the right to vote,
to receive dividends or other distributions or to exercise any preemptive
rights, and shall not be entitled to receive any notice of any proceedings of
the Company, except as provided herein.

         Section 11. ADJUSTMENT OF EXERCISE PRICE, NUMBER AND KIND OF SHARES OR
NUMBER OF RIGHTS. The Exercise Price, the number and kind of shares covered by
each Right and the number of Rights outstanding are subject to adjustment from
time to time as provided in this Section 11.

              (a)   (i)    In the event the Company shall at any time after the
              date of this Agreement (A) declare a dividend on the Preferred
              Stock payable in shares of Preferred Stock, (B) subdivide the
              outstanding Preferred Stock, (C) combine the outstanding Preferred
              Stock into a smaller number of shares or (D) issue any shares of
              its capital stock in a reclassification of the Preferred Stock
              (including any such reclassification in connection with a
              consolidation or merger in which the Company is the continuing or
              surviving corporation), except as otherwise provided in this
              Section 11(a) and Section 7(e) hereof, the Exercise Price in
              effect at the time of the record date for such dividend or of the
              effective date of such subdivision, combination or
              reclassification, and the number and kind of shares of capital
              stock issuable on such date, shall be proportionately adjusted so
              that the holder of any Right exercised after such time shall be
              entitled to receive the aggregate number and kind of shares of
              capital stock which, if such Right had been exercised immediately
              prior to such date and at a time when the Preferred Stock transfer
              books of the Company were open, such holder would have owned upon
              such exercise and been entitled to receive by virtue of such
              dividend, subdivision, combination or reclassification; PROVIDED,
              HOWEVER, that in no event shall the consideration to be paid upon
              the exercise of a Right be less than the aggregate par value of
              the shares of capital stock of the Company issuable upon exercise
              of a Right. If an event occurs which would require an adjustment
              under both 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 the provisions of Section 24 hereof, in
              the event any Person, alone or together with its Affiliates and
              Associates, shall become an



                                       17

<PAGE>   21

              Acquiring Person (a "Section 11(a)(ii) Event"), then promptly
              following any such occurrence, proper provision shall be made so
              that each holder of a Right, except as provided in Section 7(e)
              hereof, shall thereafter have a right to receive, upon exercise
              thereof at the then current Exercise Price in accordance with the
              terms of this Agreement, such number of shares of Preferred Stock
              of the Company as shall equal the result obtained by (x)
              multiplying the then current Exercise Price by the then number of
              one one-thousandths of a share of Preferred Stock for which a
              Right was exercisable immediately prior to the first occurrence of
              a Section 11(a)(ii) Event, whether or not such Right was then
              exercisable, and dividing that product by (y) 50% of the Fair
              Market Value per one one-thousandth of a share of the Preferred
              Stock (determined pursuant to Section 11(d)) on the date of the
              occurrence of a Section 11(a)(ii) Event (such number of shares
              being referred to as the "Adjustment Shares").

                    (iii)  In lieu of issuing any shares of Preferred Stock in
              accordance with Section 11(a)(ii) hereof, the Company, acting by
              resolution of the Board of Directors of the Company, may, and in
              the event that the number of shares of Preferred Stock which are
              authorized by the Company's Articles of Incorporation but not
              outstanding or reserved for issuance for purposes other than upon
              exercise of the Rights is not sufficient to permit the exercise in
              full of the Rights in accordance with the foregoing subparagraph
              (ii) of this Section 11(a), the Company, acting by resolution of
              the Board of Directors of the Company, shall: (A) determine the
              excess of (X) the Fair Market Value of the Adjustment Shares
              issuable upon the exercise of a Right (the "Current Value") over
              (Y) the Exercise Price attributable to each Right (such excess
              being referred to as the "Spread") and (B) with respect to all or
              a portion of each Right (subject to Section 7(e) hereof), make
              adequate provision to substitute for the Adjustment Shares, upon
              payment of the applicable Exercise Price, (1) cash, (2) a
              reduction in the Exercise Price, (3) Preferred Stock Equivalents
              which the Board of Directors of the Company has deemed to have the
              same value as shares of Common Stock of the Company, (4) debt
              securities of the Company, (5) other assets of the Company or (6)
              any combination of the foregoing which, when added to any shares
              of Preferred Stock issued upon such exercise, has 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, that if the Company shall not have made adequate
              provision to deliver value pursuant to clause (B) above within 30
              days following the later of (x) the first occurrence of a Section
              11(a)(ii) Event and (y) the date on which the Company's right of
              redemption pursuant to Section 23(a) expires (the later of (x) and
              (y) being referred to herein 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



                                       18

<PAGE>   22

              requiring payment of the Exercise Price, shares of Preferred Stock
              (to the extent available) and then, if necessary, cash, which
              shares and/or cash have an aggregate value equal to the Spread. If
              the Board of Directors of the Company shall determine in good
              faith that it is likely that sufficient additional shares of
              Preferred Stock could be authorized for issuance upon exercise in
              full of the Rights, the 30-day period set forth above may be
              extended to the extent necessary, but not more than 90 days after
              the Section 11(a)(ii) Trigger Date, in order that the Company may
              seek stockholder approval for the authorization of such additional
              shares (such period, as it may be extended, being referred to
              herein as 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)(iii), the
              Company (x) shall provide, subject to Section 7(e) hereof, that
              such action shall apply uniformly to all outstanding Rights and
              (y) may suspend the exercisability of the Rights until the
              expiration of the Substitution Period in order to seek any
              authorization of additional shares and/or to decide the
              appropriate form of distribution to be made pursuant to such first
              sentence and to determine the value thereof. In the event of any
              such suspension, the Company shall issue a public announcement
              stating that the exercisability of the Rights has been temporarily
              suspended and a public announcement at such time as the suspension
              is no longer in effect. For purposes of this Section 11(a)(iii),
              the value of the Preferred Stock shall be the Fair Market Value
              (as determined pursuant to Section 11(d) hereof) per share of the
              Preferred Stock on the Section 11(a)(ii) Trigger Date and the
              value of any Preferred Stock Equivalent shall be deemed to have
              the same value as the Preferred Stock on such date.

              (b)   If the Company shall fix a record date for the issuance of
rights, options or warrants to all holders of Preferred Stock entitling them
(for a period expiring within 45 calendar days after such record date) to
subscribe for or purchase Preferred Stock (or securities having the same or more
favorable rights, privileges and preferences as the shares of Preferred Stock
("Preferred Stock Equivalents")) or securities convertible into Preferred Stock
or Preferred Stock Equivalents at a price per share of Preferred Stock or per
share of Preferred Stock Equivalents (or having a conversion price per share, if
a security convertible into Preferred Stock or Preferred Stock Equivalents) less
than the Fair Market Value (as determined pursuant to Section 11(d) hereof) per
share of Preferred Stock on such record date, the Exercise Price to be in effect
after such record date shall be determined by multiplying the Exercise Price in
effect immediately prior to such record date by a fraction, the numerator of
which shall be the number of shares of Preferred Stock outstanding on such
record date, plus the number of shares of Preferred Stock which the aggregate
offering price of the total number of shares of Preferred Stock and/or Preferred
Stock Equivalents to be offered (and the aggregate initial conversion price of
the convertible securities so to be offered) would purchase at such Fair Market
Value and the denominator of which shall be the number of shares of Preferred
Stock outstanding on such record date, plus the number of additional shares of



                                       19

<PAGE>   23

Preferred Stock and Preferred Stock Equivalents to be offered for subscription
or purchase (or into which the convertible securities so to be offered are
initially convertible); PROVIDED, HOWEVER, that in no event shall the
consideration to be paid upon the exercise of a Right be less than the aggregate
par value of the shares of capital stock of the Company issuable upon exercise
of a Right. In case such subscription price may be paid in a consideration part
or all of which shall be in a form other than cash, the value of such
consideration shall be the Fair Market Value thereof determined in accordance
with Section 11(d) hereof. Shares of Preferred Stock owned by or held for the
account of the Company shall not be deemed outstanding for the purpose of any
such computation. Such adjustments shall be made successively whenever such a
record date is fixed; and in the event that such rights or warrants are not so
issued, the Exercise Price shall be adjusted to be the Exercise Price which
would then be in effect if such record date had not been fixed.

              (c)   If the Company shall fix a record date for the making of a
distribution to all holders of Preferred Stock (including any such distribution
made in connection with a consolidation or merger in which the Company is the
continuing or surviving corporation) of evidences of indebtedness, cash (other
than a regular periodic cash dividend out of the earnings or retained earnings
of the Company), assets (other than a dividend payable in Preferred Stock, but
including any dividend payable in stock other than Preferred Stock) or
convertible securities, subscription rights or warrants (excluding those
referred to in Section 11(b)), the Exercise Price to be in effect after such
record date shall be determined by multiplying the Exercise Price in effect
immediately prior to such record date by a fraction, the numerator of which
shall be the Fair Market Value (as determined pursuant to Section 11(d) hereof)
per one one-thousandth of a share of Preferred Stock on such record date, less
the Fair Market Value (as determined pursuant to Section 11(d) hereof) of the
portion of the cash, assets or evidences of indebtedness so to be distributed or
of such convertible securities, subscription rights or warrants applicable to
one one-thousandth of a share of Preferred Stock and the denominator of which
shall be the Fair Market Value (as determined pursuant to Section 11(d) hereof)
per one one-thousandth of a share of Preferred Stock; PROVIDED, HOWEVER, that in
no event shall the consideration to be paid upon the exercise of a Right be less
than the aggregate par value of the shares of stock of the Company issuable upon
exercise of a Right. Such adjustments shall be made successively whenever such a
record date is fixed; and in the event that such distribution is not so made,
the Exercise Price shall again be adjusted to be the Exercise Price which would
be in effect if such record date had not been fixed.

              (d)   For the purpose of this Agreement, the "Fair Market Value"
of any share of Preferred Stock, Common Stock or any other stock or any Right or
other security or any other property shall be determined as provided in this
Section 11(d).

                    (i)    In the case of a publicly-traded stock or other
              security, the Fair Market Value on any date shall be deemed to be
              the average of the daily closing prices per share of such stock or
              per unit of such other security for the 30 consecutive Trading
              Days (as such term is hereinafter defined) immediately



                                       20

<PAGE>   24

              prior to such date; PROVIDED, HOWEVER, that in the event that the
              Fair Market Value per share of any share of stock is determined
              during a period following the announcement by the issuer of such
              stock of (x) a dividend or distribution on such stock payable in
              shares of such stock or securities convertible into shares of such
              stock or (y) any subdivision, combination or reclassification of
              such stock, and prior to the expiration of the 30 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 Fair Market
              Value shall be properly adjusted to take into account ex-dividend
              trading. The closing price for each day shall be the last sale
              price, regular way, or, in case no such sale takes place on such
              day, the average of the closing bid and asked prices, regular way,
              in either case as reported in the principal consolidated
              transaction reporting system with respect to securities listed or
              admitted to trading on the New York Stock Exchange or, if the
              securities are not listed or admitted to trading on the New York
              Stock Exchange, as reported in the principal consolidated
              transaction reporting system with respect to securities listed on
              the principal national securities exchange on which such security
              is listed or admitted to trading; or, if not listed or admitted to
              trading on any national securities exchange, the last quoted price
              (or, if not so quoted, the average of the last quoted high bid and
              low asked prices) in the over-the-counter market, as reported by
              NASDAQ or such other system then in use; or, if on any such date
              no bids for such security are 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 such security
              selected by the Board of Directors of the Company. If on any such
              date no market maker is making a market in such security, the Fair
              Market Value of such security on such date shall be determined
              reasonably and with utmost good faith to the holders of the Rights
              by the Board of Directors of the Company, provided, however, that
              if at the time of such determination there is an Acquiring Person,
              the Fair Market Value of such security on such date shall be
              determined by a nationally recognized investment banking firm
              selected by the Board of Directors of the Company, which
              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. The term "Trading Day" shall mean a day on
              which the principal national securities exchange on which such
              security is listed or admitted to trading is open for the
              transaction of business or, if such security is not listed or
              admitted to trading on any national securities exchange, a
              Business Day.

                    (ii)   If a security is not publicly held or not so listed
              or traded, "Fair Market Value" shall mean the fair value per share
              of stock or per other unit of such security, determined reasonably
              and with utmost good faith to the holders of the Rights by the
              Board of Directors of the Company, provided, however, that if at
              the time of such determination there is an Acquiring Person, the
              Fair



                                       21

<PAGE>   25

              Market Value of such security on such date shall be determined by
              a nationally recognized investment banking firm selected by the
              Board of Directors of the Company, which 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;
              PROVIDED, HOWEVER, that for the purposes of making any adjustment
              provided for by Section 11(a)(ii) hereof, the Fair Market Value of
              a share of Preferred Stock shall not be less than the product of
              the then Fair Market Value of a share of Common Stock multiplied
              by the higher of the then Dividend Multiple or Vote Multiple (as
              both of such terms are defined in the Articles Supplementary
              attached as EXHIBIT A hereto) applicable to the Preferred Stock
              and shall not exceed 105% of the product of the then Fair Market
              Value of a share of Common Stock multiplied by the higher of the
              then Dividend Multiple or Vote Multiple applicable to the
              Preferred Stock.

                    (iii)  In the case of property other than securities, the
              Fair Market Value thereof shall be determined reasonably and with
              utmost good faith to the holders of Rights by the Board of
              Directors of the Company, provided, however, that if at the time
              of such determination there is an Acquiring Person, the Fair
              Market Value of such property on such date shall be determined by
              a nationally recognized investment banking firm selected by the
              Board of Directors of the Company, which determination shall be
              described in a statement filed with the Rights Agent and shall be
              binding upon the Rights Agent and the holders of the Rights.

              (e)   Anything herein to the contrary notwithstanding, no
adjustment in the Exercise Price shall be required unless such adjustment would
require an increase or decrease of at least 1% in the Exercise 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 hundred-thousandth of a share of Common Stock
of the Company or ten-millionth of a share of Preferred Stock, as the case may
be, or to such other figure as the Board of Directors of the Company may deem
appropriate. Notwithstanding the first sentence of this Section 11(e), any
adjustment required by this Section 11 shall be made no later than the earlier
of (i) three (3) years from the date of the transaction which mandates such
adjustment or (ii) the Expiration Date.

              (f)   If as a result of any provision of Section 11(a) or Section
13(a) hereof, the holder of any Right thereafter exercised shall become entitled
to receive any shares of capital stock of the Company other than Preferred
Stock, thereafter the number of such other shares so receivable upon exercise of
any Right shall be subject to adjustment from time to time in a manner and on
terms as nearly equivalent as practicable to the provisions with respect to the
Preferred Stock contained in Section 11(a), (b), (c), (d), (e), (g) through (k)
and (m), inclusive, and the provisions of Sections 7, 9, 10, 13 and 14 hereof
with respect to the



                                       22

<PAGE>   26

Preferred Stock shall apply on like terms to any such other shares.

              (g)   All Rights originally issued by the Company subsequent to
any adjustment made to the Exercise Price hereunder shall evidence the right to
purchase, at the adjusted Exercise Price, the number of one one-thousandths of a
share of Preferred Stock (or other securities or amount of cash or combination
thereof) 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 Exercise Price as a
result of the calculations made in Section 11(b) and (c), each Right outstanding
immediately prior to the making of such adjustment shall thereafter evidence the
right to purchase, at the adjusted Exercise Price, that number of one
one-thousandths of a share of Preferred Stock (calculated to the nearest one
ten-millionth) as the Board of Directors of the Company determines is
appropriate to preserve the economic value of the Rights, including, by way of
example, that number obtained by (i) multiplying (x) the number of one
one-thousandths of a share of Preferred Stock for which a Right may be
exercisable immediately prior to this adjustment by (y) the Exercise Price in
effect immediately prior to such adjustment of the Exercise Price and (ii)
dividing the product so obtained by the Exercise Price in effect immediately
after such adjustment of the Exercise Price.

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



                                       23

<PAGE>   27

adjustment. Right 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 Exercise Price) and shall be registered in the
names of the holders of record of Right Certificates on the record date
specified in the public announcement.

              (j)   Irrespective of any adjustment or change in the Exercise
Price or the number of one one-thousandths of a share of Preferred Stock
issuable upon the exercise of the Rights, the Right Certificates theretofore and
thereafter issued may continue to express the Exercise Price per share and the
number of shares which were expressed in the initial Right Certificates issued
hereunder without prejudice to any adjustment or change.

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

              (l)   In any case in which this Section 11 shall require that an
adjustment in the Exercise 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
the number of one one-thousandths of a share of Preferred Stock or other capital
stock or securities of the Company, if any, issuable upon such exercise over and
above the number of one one-thousandths of a share of Preferred Stock and other
capital stock or securities of the Company, if any, issuable upon such exercise
on the basis of the Exercise Price in effect prior to such adjustment; PROVIDED,
HOWEVER, that the Company shall deliver to such holder a due bill or other
appropriate instrument evidencing such holder's right to receive such additional
shares upon the occurrence of the event requiring such adjustment.

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

              (n)   The Company covenants and agrees that it shall not, at any
time after the Distribution Date and so long as the Rights have not been
redeemed pursuant to Section 23



                                       24

<PAGE>   28

hereof or exchanged pursuant to Section 24 hereof, (i) consolidate with (other
than a Subsidiary of the Company in a transaction which complies with the
proviso at the end of this sentence), (ii) merge with or into, or (iii) sell or
transfer (or permit any Subsidiary to sell or transfer), in one transaction or a
series of related transactions, assets or earning power aggregating 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 and/or any of its
Subsidiaries in one or more transactions each of which complies with the proviso
at the end of this sentence) if (x) at the time of or immediately after such
consolidation, merger or sale there are any rights, warrants or other
instruments outstanding or agreements or arrangements in effect which would
substantially diminish or otherwise eliminate the benefits intended to be
afforded by the Rights, or (y) prior to, simultaneously with or immediately
after such consolidation, merger or sale the shareholders of a Person who
constitutes, or would constitute, the "Principal Party" for the purposes of
Section 13(a) hereof shall have received a distribution of Rights previously
owned by such Person or any of its Affiliates and Associates; PROVIDED, HOWEVER,
that this Section 11(n) shall not affect the ability of any Subsidiary of the
Company to consolidate with, merge with or into, or sell or transfer assets or
earning power to, any other Subsidiary of the Company. The Company further
covenants and agrees that after the Distribution Date it will not, except as
permitted by Section 23 or Section 27 hereof, take (or permit any Subsidiary to
take) any action if at the time such action is taken it is reasonably
foreseeable that such action will substantially diminish or otherwise eliminate
the benefits intended to be afforded by the Rights.

              (o)   Notwithstanding anything in this Agreement to the contrary,
in the event the Company shall at any time after the date of this Agreement and
prior to the Distribution Date (i) declare or pay any dividend on the
outstanding Common Stock of the Company payable in shares of Common Stock of the
Company or (ii) effect a subdivision, combination or consolidation of the
outstanding shares of Common Stock of the Company (by reclassification or
otherwise than by payment of dividends in shares of Common Stock of the Company)
into a greater or lesser number of shares of Common Stock of the Company, then
in any such case (A) the number of one one-thousandths of a share of Preferred
Stock purchasable after such event upon proper exercise of each Right shall be
determined by multiplying the number of one one-thousandths of a share of
Preferred Stock so purchasable immediately prior to such event by a fraction,
the numerator of which is the number of shares of Common Stock of the Company
outstanding immediately prior to such event and the denominator of which is the
number of shares of Common Stock of the Company outstanding immediately after
such event, and (B) each share of Common Stock of the Company outstanding
immediately after such event shall have issued with respect to it that number of
Rights which each share of Common Stock of the Company outstanding immediately
prior to such event had issued with respect to it. The adjustments provided for
in this Section 11(o) shall be made successively whenever such a dividend is
declared or paid or such a subdivision, combination or consolidation is
effected.

              (p)   The exercise of Rights under Section 11(a)(ii) shall only
result in the loss




                                       25

<PAGE>   29

of rights under Section 11(a)(ii) to the extent so exercised and shall not
otherwise affect the rights of holders of Right Certificates under this Rights
Agreement, including rights to purchase securities of the Principal Party
following a Section 13 Event which has occurred or may thereafter occur, as set
forth in Section 13 hereof. Upon exercise of a Right Certificate under Section
11(a)(ii), the Rights Agent shall return such Right Certificate duly marked to
indicate that such exercise has occurred.

         Section 12. CERTIFICATE OF ADJUSTED EXERCISE PRICE OR NUMBER OF SHARES.
Whenever an adjustment is made as provided in Section 11 or Section 13 hereof,
the Company shall (a) promptly prepare a certificate setting forth such
adjustment and a brief statement of the facts accounting for such adjustment,
(b) promptly file with the Rights Agent and with each transfer agent for the
Preferred Stock and the Common Stock of the Company a copy of such certificate
and (c) mail a brief summary thereof to each holder of a Right Certificate (or,
if prior to the Distribution Date, to each holder of a certificate representing
shares of Common Stock of the Company) in accordance with Section 26 hereof. 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
any 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 Stock Acquisition Date,
directly or indirectly, (x) the Company shall consolidate with, or merge with
and into, any other Person (other than a Subsidiary of the Company in a
transaction which is not prohibited by Section 11(n) hereof), and the Company
shall not be the continuing or surviving corporation of such consolidation or
merger, (y) any Person (other than a Subsidiary of the Company in a transaction
which is not prohibited by the proviso at the end of the first sentence of
Section 11(n) 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 merger and, in connection with such merger, all or part of the shares of
Common Stock of the Company shall be changed into or exchanged for stock or
other securities of any other Person or cash or any other property, or (z) the
Company shall sell, mortgage or otherwise transfer (or one or more of its
Subsidiaries shall sell, mortgage or otherwise transfer), in one transaction or
a series of related 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 any
Subsidiary of the Company in one or more transactions, each of which is not
prohibited by the proviso at the end of the first sentence of Section 11(n)
hereof), then, and in each such case, proper provision shall be made so that:
(i) each holder of a Right, except as provided in Section 7(e) hereof, shall
have the right to receive, upon the exercise thereof at the then current
Exercise Price in accordance with the terms of this Agreement, such number of
validly authorized and issued, fully paid and nonassessable shares of freely
tradeable Common Stock of the Principal Party (as hereinafter defined in Section
13(b)), free and clear of rights of call or first refusal, liens, encumbrances,
transfer



                                       26

<PAGE>   30

restrictions or other adverse claims, as shall be equal to the result obtained
by (1) multiplying the then current Exercise Price by the number of one
one-thousandths of a share of Preferred Stock for which a Right is exercisable
immediately prior to the first occurrence of a Section 13 Event, and dividing
that product by (2) 50% of the Fair Market Value (determined pursuant to Section
11(d) hereof) per share of the Common Stock of such Principal Party on the date
of consummation of such consolidation, merger, sale or transfer; (ii) such
Principal Party shall thereafter be liable for, and shall assume, by virtue of
such consolidation, merger, sale, mortgage or transfer, all the obligations and
duties of the Company pursuant to this Agreement; (iii) the term "Company" shall
thereafter be deemed to refer to such Principal Party, it being specifically
intended that the provisions of Section 11 hereof shall apply to such Principal
Party; and (iv) such Principal Party shall take such steps (including, but not
limited to, the reservation of a sufficient number of shares of its Common Stock
to permit exercise of all outstanding Rights in accordance with this Section
13(a) and the making of payments in cash and/or other securities in accordance
with Section 11(a)(iii) hereof) in connection with such consummation as may be
necessary to assure that the provisions hereof shall thereafter be applicable,
as nearly as reasonably may be, in relation to its shares of Common Stock
thereafter deliverable upon the exercise of the Rights.

              (b)   "Principal Party" shall mean

                    (i)    in the case of any transaction described in clause
         (x) or (y) of the first sentence of Section 13(a), the Person that is
         the issuer of any securities into which shares of Common Stock of the
         Company are converted in such merger or consolidation, or, if there is
         more than one such issuer, the issuer of Common Stock that has the
         highest aggregate Fair Market Value (determined pursuant to Section
         11(d)), and if no securities are so issued, the Person that is the
         other party to the merger or consolidation, or, if there is more than
         one such Person, the Person the Common Stock of which has the highest
         aggregate Fair Market Value (determined pursuant to Section 11(d)); and

                    (ii)   in the case of any transaction described in clause
         (z) of the first sentence of Section 13(a), the Person that is the
         party receiving the greatest portion of the assets or earning power
         transferred pursuant to such transaction or transactions, or, if each
         Person that is a party to such transaction or transactions receives the
         same portion of the assets or earning power transferred pursuant to
         such transaction or transactions or if the Person receiving the largest
         portion of the assets or earning power cannot be determined, whichever
         Person the Common Stock of which has the highest aggregate Fair Market
         Value (determined pursuant to Section 11(d));

PROVIDED, HOWEVER, that in any such case, (1) if the Common Stock of such Person
is not at such time and has not been continuously over the preceding 12-month
period registered under Section 12 of the Exchange Act ("Registered Common
Stock"), or such Person is not a corporation, and such Person is a direct or
indirect Subsidiary or Affiliate of another Person



                                       27

<PAGE>   31

who has Registered Common Stock outstanding, "Principal Party" shall refer to
such other Person; (2) if the Common Stock of such Person is not Registered
Common Stock or such Person is not a corporation, and such Person is a direct or
indirect Subsidiary of another Person but is not a direct or indirect Subsidiary
of another Person which has Registered Common Stock outstanding, "Principal
Party" shall refer to the ultimate parent entity of such first-mentioned Person;
(3) if the Common Stock of such Person is not Registered Common Stock or such
Person is not a corporation, and such Person is directly or indirectly
controlled by more than one Person, and one or more of such other Persons has
Registered Common Stock outstanding, "Principal Party" shall refer to whichever
of such other Persons is the issuer of the Registered Common Stock having the
highest aggregate Fair Market Value (determined pursuant to Section 11(d)); and
(4) if the Common Stock of such Person is not Registered Common Stock or such
Person is not a corporation, and such Person is directly or indirectly
controlled by more than one Person, and none of such other Persons has
Registered Common Stock outstanding, "Principal Party" shall refer to whichever
ultimate parent entity is the corporation having the greatest stockholders'
equity or, if no such ultimate parent entity is a corporation, "Principal Party"
shall refer to whichever ultimate parent entity is the entity having the
greatest net assets.

              (c)   The Company shall not consummate any such consolidation,
merger, sale or transfer unless prior thereto (x) the Principal Party shall have
a sufficient number of authorized shares of its Common Stock, which have not
been issued or reserved for issuance, to permit the exercise in full of the
Rights in accordance with this Section 13, and (y) the Company and each
Principal Party and each other Person who may become a Principal Party as a
result of such consolidation, merger, sale or transfer shall have executed and
delivered to the Rights Agent a supplemental agreement providing for the terms
set forth in Section 13(a) and (b) and further providing that, as soon as
practicable after the date of any consolidation, merger, sale or transfer of
assets mentioned in Section 13(a), the Principal Party at its own expense 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, cause
         such registration statement to become effective as soon as practicable
         after such filing and cause such registration statement to remain
         effective (with a prospectus that at all times meets the requirements
         of the Securities Act) until the Expiration Date;

                    (ii)   qualify or register the Rights and the securities
         purchasable upon exercise of the Rights under the blue sky laws of such
         jurisdictions as may be necessary or appropriate;

                    (iii)  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



                                       28

<PAGE>   32

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

              (d)   In case the Principal Party which is to be a party to a
transaction referred to in this Section 13 has a provision in any of its
authorized securities or in its Certificate of Incorporation or By-laws or other
instrument governing its corporate affairs, which provision would have the
effect of (i) causing such Principal Party to issue (other than to holders of
Rights pursuant to this Section 13), in connection with, or as a consequence of,
the consummation of a transaction referred to in this Section 13, shares of
Common Stock of such Principal Party at less than the then current Fair Market
Value (determined pursuant to Section 11(d)) or securities exercisable for, or
convertible into, Common Stock of such Principal Party at less than such Fair
Market Value, or (ii) providing for any special payment, tax or similar
provisions in connection with the issuance of the Common Stock of such Principal
Party pursuant to the provisions of this Section 13, then, in such event, the
Company shall not consummate any such transaction unless prior thereto the
Company and such Principal Party shall have executed and delivered to the Rights
Agent a supplemental agreement providing that the provision in question of such
Principal Party shall have been canceled, waived or amended, or that the
authorized securities shall be redeemed, so that the applicable provision will
have no effect in connection with, or as a consequence of, the consummation of
the proposed transaction.

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, except prior to the Distribution Date as provided in Section 11(o)
hereof, or to distribute Right Certificates which evidence fractional Rights. If
the Company elects not to issue such fractional Rights, the Company shall pay,
in lieu of such fractional Rights, to the registered holders of the Right
Certificates with regard to which such fractional Rights would otherwise be
issuable, an amount in cash equal to the same fraction of the Fair Market Value
of a whole Right, as determined pursuant to Section 11(d) hereof.

              (b)   The Company shall not be required to issue fractions of
shares of Preferred Stock (other than fractions which are integral multiples of
one one-thousandth of a share of Preferred Stock) upon exercise of the Rights or
to distribute certificates which evidence fractional shares of Preferred Stock
(other than fractions which are integral multiples of one one-thousandth of a
share of Preferred Stock). In lieu of fractional shares of Preferred Stock that
are not integral multiples of one one-thousandth of a share of Preferred Stock,
the Company may pay to the registered holders of Right Certificates at the time
such Rights are exercised as herein provided an amount in cash equal to the same
fraction of the Fair Market




                                       29

<PAGE>   33

Value of one one-thousandth of a share of Preferred Stock. For purposes of this
Section 14(b), the Fair Market Value of one one-thousandth of a share of
Preferred Stock shall be determined pursuant to 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 Rights
expressly waives his right to receive any fractional Rights or any fractional
shares upon exercise of a Right, except as permitted by this Section 14.

         Section 15. RIGHTS OF ACTION. All rights of action in respect of this
Agreement, other than rights of action vested in the Rights Agent pursuant to
Sections 18 and 20 hereof, are vested in the respective registered holders of
the Right Certificates (or, prior to the Distribution Date, the registered
holders of the Common Stock of the Company); and any registered holder of any
Right Certificate (or, prior to the Distribution Date, of the Common Stock of
the Company), without the consent of the Rights Agent or of the holder of any
other Right Certificate (or, prior to the Distribution Date, of the Common Stock
of the Company), may, in such registered holder's own behalf and for such
registered holder's own benefit, enforce, and may institute and maintain any
suit, action or proceeding against the Company to enforce, or otherwise act in
respect of, his right to exercise the Right evidenced by such Right Certificate
in the manner provided in such Right Certificate and in this Agreement. Without
limiting the foregoing or any remedies available to the holders of Rights, it is
specifically acknowledged that the holders of Rights would not have an adequate
remedy at law for any breach of this Agreement and shall be entitled to specific
performance of the obligations hereunder and injunctive relief against actual or
threatened violations of the obligations hereunder of any Person subject to this
Agreement. Holders of Rights shall be entitled to recover the reasonable costs
and expenses, including attorneys' fees, incurred by them in any action to
enforce the provisions of this Agreement.

         Section 16. AGREEMENT OF RIGHT HOLDERS. Every holder of a Right, by
accepting the same, consents and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

              (a)   prior to the Distribution Date, each Right will be
transferable only simultaneously and together with the transfer of shares of
Common Stock of the Company;

              (b)   after the Distribution Date, the Right Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the office or offices of the Rights Agent designated for such purpose, duly
endorsed or accompanied by a proper instrument of transfer;

              (c)   subject to Sections 6(a) and 7(f), the Company and the
Rights Agent may deem and treat the person in whose name a Right Certificate
(or, prior to the Distribution Date, the associated certificate representing
Common Stock of the Company) is registered as



                                       30

<PAGE>   34

the absolute owner thereof and of the Rights evidenced thereby (notwithstanding
any notations of ownership or writing on the Right Certificates or the
associated certificate representing Common Stock of the Company made by anyone
other than the Company or the Rights Agent) for all purposes whatsoever, and,
subject to the last sentence of Section 7(e), neither the Company nor the Rights
Agent shall be affected by any notice to the contrary; and

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

         Section 17. RIGHT CERTIFICATE HOLDER NOT DEEMED A SHAREHOLDER. No
holder, as such, of any Right Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose the holder of the shares of Preferred
Stock or any other securities of the Company which may at any time be issuable
on the exercise of the Rights represented thereby, nor shall anything contained
herein or in any Right Certificate be construed to confer upon the holder of any
Right Certificate, as such, any of the rights of a shareholder of the Company or
any right to vote for the election of directors or upon any matter submitted to
shareholders at any meeting thereof, or to give or withhold consent to any
corporate action, or to receive notice of meetings or other actions affecting
shareholders (except as provided in Section 25 hereof), or to receive dividends
or subscription rights, or otherwise, until the Right or Rights evidenced by
such Right Certificate shall have been exercised in accordance with the
provisions hereof.

         Section 18. CONCERNING THE RIGHTS AGENT.

              (a)   The Company agrees to pay to the Rights Agent such
compensation as shall be agreed to in writing between the Company and the Rights
Agent for all services rendered by it hereunder and, from time to time, on
demand of the Rights Agent, its reasonable expenses and counsel fees and
disbursements and other disbursements incurred in the administration and
execution of this Agreement and the exercise and performance of its duties
hereunder. The Company also agrees to indemnify the Rights Agent for, and to
hold it harmless against, any loss, liability, or expense, incurred without
gross negligence, bad faith or willful misconduct on the part of the Rights
Agent, for anything done or omitted by the Rights Agent in connection with the
acceptance and administration of this Agreement, including the costs and
expenses of defending against any claim of liability arising therefrom, directly
or indirectly. The provisions of this Section 18(a) shall survive the expiration
of the Rights and the termination of this Agreement.




                                       31

<PAGE>   35

              (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 Right
Certificate or certificate representing Common Stock of the Company, Preferred
Stock, or 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 in good faith
and without negligence to be genuine and to be signed and executed by the proper
Person or Persons.

              (c)   The Rights Agent shall not be liable for consequential
damages under any provision of this Agreement or for any consequential damages
arising out of any act or failure to act hereunder.

         Section 19. MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS AGENT.

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

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

         Section 20. DUTIES OF RIGHTS AGENT. The Rights Agent undertakes the
duties and obligations expressly imposed by this Agreement upon the following
terms and conditions, by all of which the Company and the holders of Right
Certificates, by their acceptance thereof,



                                       32

<PAGE>   36

shall be bound:

              (a)   The Rights Agent may consult with legal counsel selected by
it (who may be legal counsel for the Company), and the opinion of such counsel
shall be full and complete authorization and protection to the Rights Agent 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 "Fair Market Value") 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 shall be herein specifically
prescribed) may be deemed to be conclusively proved and established by a
certificate signed by a person believed by the Rights Agent to be the Chairman
of the Board of Directors, a Vice Chairman of the Board of Directors, the
President, a Vice President, the Treasurer, any Assistant Treasurer, the
Secretary or an Assistant Secretary of the Company and delivered to the Rights
Agent. Any such certificate shall be full authorization to the Rights Agent for
any action taken or suffered in good faith by it under the provisions of this
Agreement in reliance upon such certificate.

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

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

              (e)   The Rights Agent shall not be under any responsibility in
respect of the validity of this Agreement or the execution and delivery hereof
(except the due execution hereof by the Rights Agent) or in respect of the
validity or execution of any Right Certificate (except its countersignature
thereof); nor shall it be responsible for any breach by the Company of any
covenant or condition contained in this Agreement or in any Right Certificate;
nor shall it be responsible for any change in the exercisability of the Rights
(including the Rights becoming void pursuant to Section 7(e) hereof) or any
adjustment required under the provisions of Sections 11, 13 or 23(c) hereof or
responsible for the manner, method or amount of any such adjustment or the
ascertaining of the existence of facts that would require any such adjustment
(except with respect to the exercise of Rights evidenced by Right Certificates
after receipt of a certificate describing any such adjustment furnished in
accordance with Section 12 hereof), nor shall it be responsible for any
determination by the Board of Directors of the Company of the Fair Market Value
of the Rights or Preferred Stock pursuant to the provisions of Section 14
hereof; nor shall it by any act hereunder be deemed to make any representation
or warranty as to the authorization or reservation of any shares of Common Stock
of the



                                       33

<PAGE>   37

Company or Preferred Stock to be issued pursuant to this Agreement or any Right
Certificate or as to whether any shares of Common Stock of the Company or
Preferred Stock will, when so issued, be validly authorized and issued, fully
paid and nonassessable.

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

              (g)   The Rights Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder and
certificates delivered pursuant to any provision hereof from any person believed
by the Rights Agent to be the Chairman of the Board of Directors, any Vice
Chairman of the Board of Directors, the President, a Vice President, the
Secretary, an Assistant Secretary, the Treasurer or an Assistant Treasurer of
the Company, and is authorized 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 to be taken by it in good faith in accordance with
instructions of any such officer. 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 Agreement and the date on 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 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 shareholder, 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 the 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.

              (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



                                       34

<PAGE>   38

liability is not reasonably assured to it.

              (k)   If, with respect to any Right 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) or clause (2)
thereof, 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 by first class
mail. The Company may remove the Rights Agent or any successor Rights Agent
(with or without cause) upon thirty (30) days' notice in writing, mailed to the
Rights Agent or successor Rights Agent, as the case may be, and to each transfer
agent of the Common Stock of the Company and Preferred Stock by registered or
certified mail, and to the holders of the Right Certificates by first-class
mail. If the Rights Agent shall resign or be removed or shall otherwise become
incapable of acting, the Company shall appoint a successor to the Rights Agent.
If the Company shall fail to make such appointment within a period of 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 Right Certificate (who shall, with such
notice, submit his Right Certificate for inspection by the Company), then the
incumbent Rights Agent or the registered holder of any Right Certificate may
apply to any court of competent jurisdiction for the appointment of a new Rights
Agent. Any successor Rights Agent, whether appointed by the Company or by such a
court, shall be (a) a corporation organized and doing business under the laws of
the United States or of the State of New York (or of any other state of the
United States so long as such corporation is authorized to do business as a
banking institution in the State of New York), in good standing, which is
authorized under such laws to exercise stock transfer or corporate trust powers
and is subject to supervision or examination by federal or state authority and
which has at the time of its appointment as Rights Agent a combined capital and
surplus of at least $100,000,000 or (b) an Affiliate of a corporation described
in clause (a) of this sentence. After appointment, the successor Rights Agent
shall be vested with the same powers, rights, duties and responsibilities as if
it had been originally named as Rights Agent without further act or deed; but
the predecessor Rights Agent shall deliver and transfer to the successor Rights
Agent any property at the time held by it hereunder, and execute and deliver any
further assurance, conveyance, act or deed necessary for the purpose. Not later
than the effective date of any such appointment, the Company shall file notice
thereof in writing with the predecessor Rights Agent and each transfer agent of
the Common Stock of the Company and the Preferred Stock, and mail a notice
thereof in writing to the registered holders of the Right Certificates. Failure
to give any notice provided for in this Section 21, however, or any defect
therein, shall not affect the legality or validity of the resignation or removal
of the Rights Agent or the appointment of the successor Rights Agent, as the
case may be.


                                       35

<PAGE>   39

         Section 22. ISSUANCE OF NEW RIGHT CERTIFICATES. Notwithstanding any of
the provisions of this Agreement or of the Rights to the contrary, the Company
may, at its option, issue new Right Certificates evidencing Rights in such form
as may be approved by the Board of Directors of the Company to reflect any
adjustment or change in the Exercise Price per share and the number or kind or
class of shares of stock or other securities or property purchasable under the
Right Certificates made in accordance with the provisions of this Agreement. In
addition, in connection with the issuance or sale of shares of Common Stock of
the Company following the Distribution Date and prior to the redemption or
expiration of the Rights, the Company (a) shall, with respect to shares of
Common Stock of the Company 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 hereafter issued by the Company, and (b)
may, in any other case, if deemed necessary or appropriate by the Board of
Directors of the Company, issue Right Certificates representing the appropriate
number of Rights in connection with such issuance or sale; PROVIDED, HOWEVER,
that (i) no such Right Certificate shall be issued if, and to the extent that,
the Company shall be advised by counsel that such issuance would create a
significant risk of material adverse tax consequences to the Company or the
person to whom such Right Certificate would be issued, and (ii) no such Right
Certificate shall be issued if, and to the extent that, appropriate adjustments
shall otherwise have been made in lieu of the issuance thereof.

         Section 23. REDEMPTION.

              (a)   The Board of Directors of the Company may, at its option,
redeem all but not less than all of the then outstanding Rights at a redemption
price of $0.01 per Right, appropriately adjusted to reflect any dividend
declared or paid on the Common Stock of the Company in shares of Common Stock of
the Company or any subdivision or combination of the outstanding shares of
Common Stock of the Company or similar event occurring after the date of this
Agreement (such redemption price, as adjusted from time to time, being
hereinafter referred to as the "Redemption Price"). The Rights may be redeemed
only until the earliest to occur of (i) the time at which any Person becomes an
Acquiring Person or (ii) the Final Expiration Date.

              (b)   Immediately upon the action of the Board of Directors of the
Company ordering the redemption of the Rights in accordance with Section 23
hereof, and without any further action and without any notice, the right to
exercise the Rights will terminate and the only right thereafter of the holders
of Rights shall be to receive the Redemption Price for each Right so held.
Promptly after the action of the Board of Directors of the Company ordering the
redemption of the Rights in accordance with Section 23 hereof, 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 the Rights Agent and 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 Stock of the Company. Any notice which is mailed
in the manner herein provided shall be deemed given, whether or not the



                                       36

<PAGE>   40

holder receives the notice. The Company promptly shall mail a notice of any such
exchange to all of the holders of such Rights at their last addresses as they
appear upon the registry books of the Rights Agent. Any notice which is mailed
in the manner herein provided shall be deemed given, whether or not the holder
receives the notice. Each such notice of 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 Section 24 hereof or in connection with the purchase of
shares of Common Stock of the Company prior to the Distribution Date.

              (c)   The Company may, at its option, pay the Redemption Price in
cash, shares of Common Stock of the Company (based on the Fair Market Value of
the Common Stock of the Company as of the time of redemption) or any other form
of consideration deemed appropriate by the Board of Directors of the Company.

         Section 24. EXCHANGE.

              (a)   (i)    The Board of Directors of the Company may, at its
              option, at any time after any Person becomes an Acquiring Person,
              exchange all or part of the then outstanding and exercisable
              Rights (which shall not include Rights that have become void
              pursuant to the provisions of Section 7(e) hereof) for shares of
              Common Stock of the Company at an exchange ratio of one share of
              Common Stock of the Company 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 "Section 24(a)(i) Exchange Ratio").
              Notwithstanding the foregoing, the Board of Directors of the
              Company shall not be empowered to effect such exchange at any time
              after any Person (other than an Exempt Person), together with all
              Affiliates and Associates of such Person, becomes the Beneficial
              Owner of 50% or more of the Common Stock of the Company.

                    (ii)   Notwithstanding the foregoing, the Board of Directors
              of the Company may, at its option, at any time after any Person
              becomes an Acquiring Person, exchange all or part of the then
              outstanding and exercisable Rights (which shall not include Rights
              that have become void pursuant to the provisions of Section 7(e)
              hereof) for shares of Common Stock of the Company at an exchange
              ratio specified in the following sentence, as appropriately
              adjusted to reflect any stock split, stock dividend or similar
              transaction occurring after the date of this Agreement. Subject to
              the adjustment described in the foregoing sentence, each Right may
              be exchanged for that number of shares of Common Stock of the
              Company obtained by dividing the Spread (as defined in Section
              11(a)(iii)) by the then Fair Market Value per one one-thousandth
              of a share of Preferred Stock on the earlier of (x) the date on
              which any person becomes an Acquiring Person



                                       37

<PAGE>   41

              or (y) the date on which a tender or exchange offer by any Person
              (other than an Exempt Person) is first published or sent or given
              within the meaning of Rule 14d-4(a) of the Exchange Act or any
              successor rule, if upon consummation thereof such Person would be
              the Beneficial Owner of 10% or more of the shares of Common Stock
              of the Company then outstanding (such exchange ratio being
              referred to herein as the "Section 24(a)(ii) Exchange Ratio").
              Notwithstanding the foregoing, the Board of Directors of the
              Company shall not be empowered to effect such exchange at any time
              after any Person (other than an Exempt Person), together with all
              Affiliates and Associates of such Person, becomes the Beneficial
              Owner of 50% or more of the Common Stock of the Company.

              (b)   Immediately upon the action of the Board of Directors of the
Company ordering the exchange of any Rights pursuant to subsection (a) of this
Section 24 and without any further action and without any notice, the right to
exercise such Rights shall terminate and the only right thereafter of a holder
of such Rights shall be to receive that number of shares of Common Stock of the
Company equal to the number of such Rights held by such holder multiplied by the
Section 24(a)(i) Exchange Ratio or the Section 24(a)(ii) Exchange Ratio, as
applicable. The Company shall promptly give notice of any such exchange in
accordance with Section 26 hereof; PROVIDED, HOWEVER, that the failure to give,
or any defect in, such notice shall not affect the validity of such exchange.
The Company promptly shall mail a notice of any such exchange to all of the
holders of such Rights at their last addresses as they appear upon the registry
books of the Rights Agent. Any notice which is mailed in the manner herein
provided shall be deemed given, whether or not the holder receives the notice.
Each such notice of exchange will state the method by which the exchange of the
shares of Common Stock of the Company for Rights will be effected and, in the
event of any partial exchange, the number of Rights which will be exchanged. Any
partial exchange shall be effected pro rata based on the number of Rights (other
than Rights which have become void pursuant to the provisions of Section 7(e)
hereof) held by each holder of Rights.

              (c)   In any exchange pursuant to this Section 24, the Company, at
its option, may substitute Preferred Stock (or Preferred Stock Equivalent, as
such term is defined in Section 11(b) hereof) for Common Stock of the Company
exchangeable for Rights, at the initial rate of one one-thousandth of a share of
Preferred Stock (or Preferred Stock Equivalent) for each share of Common Stock
of the Company, as appropriately adjusted to reflect adjustments in the voting
rights of the Preferred Stock pursuant to the terms thereof, so that the
fraction of a share of Preferred Stock delivered in lieu of each share of Common
Stock of the Company shall have the same voting rights as one share of Common
Stock of the Company.

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



                                       38

<PAGE>   42
'
additional shares of Common Stock of the Company or Preferred Stock (or
Preferred Stock Equivalent) for issuance upon exchange of the Rights.

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

         Section 25. NOTICE OF CERTAIN EVENTS.

              (a)   In case the Company shall propose, at any time after the
Distribution Date, (i) to pay any dividend payable in stock of any class to the
holders of Preferred Stock or to make any other distribution to the holders of
Preferred Stock (other than a regular periodic cash dividend out of earnings or
retained earnings of the Company), or (ii) to offer to the holders of Preferred
Stock rights or warrants to subscribe for or to purchase any additional shares
of Preferred Stock or shares of stock of any class or any other securities,
rights or options, or (iii) to effect any reclassification of its Preferred
Stock (other than a reclassification involving only the subdivision of
outstanding shares of Preferred Stock), or (iv) to effect any consolidation or
merger into or with, or to effect any sale, mortgage or other transfer (or to
permit one or more of its Subsidiaries to effect any sale, mortgage or other
transfer), in one transaction or a series of related transactions, of 50% or
more of the assets or earning power of the Company and its Subsidiaries (taken
as a whole) to, any other Person (other than a Subsidiary of the Company in one
or more transactions each of which is not prohibited by the proviso at the end
of the first sentence of Section 11(n) hereof, and other than pursuant to the
Merger Agreement), (v) to effect the liquidation, dissolution or winding up of
the Company, or (vi) to declare or pay any dividend on the Common Stock of the
Company payable in Common Stock of the Company or to effect a subdivision,
combination or consolidation of the Common Stock of the Company (by
reclassification or otherwise than by payment of dividends in Common Stock of
the Company) then in each such case, the Company shall give to each holder of a
Right Certificate and to the Rights Agent, in accordance with Section 26 hereof,
a notice of such proposed action, which shall specify the record date for the
purposes of such stock dividend, distribution of rights or warrants, or the date
on which such reclassification, consolidation, merger, sale, transfer,
liquidation, dissolution, or winding up is to take place and the date of
participation therein by the holders of the shares of Common Stock of the
Company and/or Preferred Stock, if any such date is to be fixed, and such notice
shall be so given in the case of any action covered by clause (i) or (ii) above
at least twenty (20) days prior to the record date for determining holders



                                       39

<PAGE>   43

of the shares of Preferred Stock for purposes of such action, and in the case of
any such other action, at least twenty (20) days prior to the date of the taking
of such proposed action or the date of participation therein by the holders of
the shares of Common Stock of the Company and/or Preferred Stock, whichever
shall be the earlier; PROVIDED, HOWEVER, no such notice shall be required
pursuant to this Section 25 as a result of any Subsidiary of the Company
effecting a consolidation or merger with or into, or effecting a sale or other
transfer of assets or earnings power to, any other Subsidiary of the Company in
a manner not inconsistent with the provisions of this Agreement.

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

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

              Bay Apartment Communities, Inc.
              4340 Stevens Creek Boulevard
              Suite 275
              San Jose, CA  95129
              Attention: Secretary

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

              American Stock Transfer and Trust Company
              40 Wall Street
              New York, NY  10005
              Attention: Administration

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Right Certificate (or, prior to
the Distribution Date, to the holder of any certificate representing shares of
Common Stock of the Company) 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.



                                       40

<PAGE>   44
         Section 27. SUPPLEMENTS AND AMENDMENTS. Prior to the time at which any
Person becomes an Acquiring Person, the Company and the Rights Agent shall, if
the Board of Directors of the Company so directs, supplement or amend any
provision of this Agreement as the Board of Directors of the Company may deem
necessary or desirable without the approval of any holders of certificates
representing shares of Common Stock of the Company. From and after the time at
which any Person becomes an Acquiring Person, the Company and the Rights Agent
shall, if the Board of Directors of the Company so directs, supplement or amend
this Agreement without the approval of any holder of Right Certificates in order
(i) to cure any ambiguity, (ii) to correct or supplement any provision contained
herein which may be defective or inconsistent with any other provisions herein,
(iii) to shorten or lengthen any time period hereunder, or (iv) to change or
supplement the provisions hereof in any manner which the Board of Directors of
the Company may deem necessary or desirable and which shall not adversely affect
the interests of the holders of Right Certificates (other than an Acquiring
Person or any Affiliate or Associate of an Acquiring Person); PROVIDED, HOWEVER,
that from and after the time at which any Person becomes an Acquiring Person
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 the benefits to, the holders of Rights (other
than an Acquiring Person or any Affiliate or Associate of an Acquiring Person).
Upon the delivery of such certificate from an appropriate officer of the Company
(or, until and through the Disinterested Administration Date, any Disinterested
Director) which states that the proposed supplement or amendment is in
compliance with the terms of this Section 27, the Rights Agent shall execute
such supplement or amendment. Prior to the time at which any Person becomes an
Acquiring Person, the interests of the holders of Rights shall be deemed
coincident with the interests of the holders of Common Stock of the Company.
Notwithstanding any other provision hereof, the Rights Agent's consent must be
obtained regarding any amendment or supplement pursuant to this Section 27 which
alters the Rights Agent's rights or duties.

         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 AND
THE DISINTERESTED DIRECTORS.

              (a)   For all purposes of this Agreement, any calculation of the
number of shares of Common Stock of the Company outstanding at any particular
time, including for purposes of determining the particular percentage of such
outstanding shares of Common Stock of the Company 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 Rules under the Exchange Act as in effect on the date
hereof.

              (b)   Except as otherwise specifically provided herein and subject
to paragraph



                                       41

<PAGE>   45
 (c) of this Section 29, until and through the Disinterested Administration Date
the Disinterested Directors, acting pursuant to a resolution adopted by the
affirmative vote of a Majority of the Disinterested Directors, shall have the
exclusive power and authority to administer this Agreement and to exercise all
rights and powers specifically granted to the Board of Directors of the Company,
the Disinterested Directors or the Company pursuant to this Agreement, or as may
be necessary or advisable in the administration of this Agreement, including
without limitation, the right and power to (i) take any and all actions required
or permitted to be taken in accordance with the terms of this Agreement by the
Board of Directors of the Company or the Company (including without limitation,
the redemption of Rights pursuant to Section 23, the exchange of Rights pursuant
to Section 24, and the supplementation or amendment of this Agreement pursuant
to Section 27), (ii) interpret the provisions of this Agreement, (iii) make all
decisions, adjustments, calculations and determinations required or permitted to
be made in accordance with the terms of this Agreement, (iv) take any and all
actions required or permitted to be taken in accordance with the terms of this
Agreement, and (v) make any and all other determinations deemed necessary or
desirable for the administration of this Agreement, and, until such date, the
Board of Directors of the Company shall not have any power or authority to
administer this Agreement or to exercise any rights or powers specifically
granted to the Board of Directors of the Company, the Disinterested Directors or
the Company hereunder. Except as otherwise specifically provided herein and
subject to paragraph (c) of this Section 29, after the Disinterested
Administration Date the Board of Directors of the Company, acting pursuant to a
resolution adopted by the affirmative vote of a majority of the Board of
Directors in accordance with the Bylaws of the Company, shall have the exclusive
power and authority to administer this Agreement and to exercise all rights and
powers specifically granted to the Board of Directors of the Company or the
Company pursuant to this Agreement, 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, (ii) make all
adjustments, calculations and determinations required or permitted to be made in
accordance with the terms of this Agreement, (iii) take any and all actions
required or permitted to be taken in accordance with the terms of this
Agreement, and (iv) make any and all other determinations deemed necessary or
desirable for the administration of this Agreement. All such actions,
calculations, adjustments, 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 of Directors of the Company in good faith or by
the Disinterested Directors in good faith shall (x) be final, conclusive and
binding on the Company, the Rights Agent, the holders of the Rights and all
other parties, and (y) not subject the Board of Directors of the Company or any
member thereof, including without limitation, any of the Disinterested
Directors, to any liability to the holders of the Rights or to any other person.

              (c)   Notwithstanding anything to the contrary contained in this
Agreement, until and through the Disinterested Administration Date, a resolution
adopted by the affirmative vote of a Majority of the Disinterested Directors
shall be required to give effect to any action, calculation, interpretation,
adjustment or determination made by the Company or the Disinterested Directors
in the administration of this Agreement and the exercise of the rights or powers
granted to the Company, the Board of Directors or the Disinterested Directors
pursuant to this Agreement; PROVIDED, HOWEVER, that no effect shall be given to
any such action, calculation, interpretation, adjustment or determination or
exercise of rights or powers unless at least two Disinterested Directors are
then in office. Notwithstanding anything to the



                                       42

<PAGE>   46
contrary contained in this Agreement, after the Disinterested Administration
Date, a resolution adopted by the affirmative vote of a majority of the Board of
Directors in accordance with the Bylaws of the Company shall be required to give
effect to any action, calculation, interpretation, adjustment or determination
made by the Company or the Board of Directors in the administration of this
Agreement and the exercise of the rights or powers granted to the Company or the
Board of Directors pursuant to this Agreement.

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

         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 the Agreement would adversely affect the purpose or effect
of the 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 of the
Company.

         Section 32. GOVERNING LAW. This Agreement, each Right and each Right
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of Maryland 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 to be performed entirely within Maryland.

         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.


                  [Remainder of page intentionally left blank.]




                                       43

<PAGE>   47


         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as an instrument under seal and attested, all as of the day and
year first above written.





ATTEST:                                           BAY APARTMENT COMMUNITIES,
                                                  INC.



By: /s/ Jeffrey B. Van Horn                       By: /s/ Gilbert M. Meyer
    --------------------------                        --------------------------
    Jeffrey B. Van Horn                               Name: Gilbert M. Meyer
    Secretary                                         Title: President and Chief
                                                             Executive Officer





ATTEST:                                           AMERICAN STOCK TRANSFER AND
                                                  TRUST COMPANY, as Rights Agent



By: /s/ Susan Silber                              By: /s/ Herbert J. Lemmer
    --------------------------                        --------------------------
    Susan Silber                                      Name: Herbert J. Lemmer
    Assistant Secretary                               Title: Vice President



<PAGE>   48

                                                                       EXHIBIT A



                                     FORM OF
                             ARTICLES SUPPLEMENTARY
             CLASSIFYING AND DESIGNATING A SERIES OF PREFERRED STOCK

                                       AS

            SERIES E JUNIOR PARTICIPATING CUMULATIVE PREFERRED STOCK

                                       OF

                         BAY APARTMENT COMMUNITIES, INC.


         We, Gilbert M. Meyer and Jeffrey B. Van Horn, being the President and
the Secretary, respectively, of BAY APARTMENT COMMUNITIES, INC., a corporation
organized and existing under the General Corporation Law of the State of
Maryland (the "Corporation"), in accordance with the provisions of Section 1-301
thereof, DO HEREBY CERTIFY:

         That pursuant to the authority conferred upon the Board of Directors by
the Articles of Incorporation of the Corporation, on March 13, 1995, the Board
of Directors adopted the following resolution creating a series of 1,000,000
shares of Preferred Stock designated as "Series E Junior Participating
Cumulative Preferred Stock":

              "RESOLVED, that pursuant to the authority vested in the Board of
              Directors of the Corporation in accordance with the provisions of
              its Articles of Incorporation, a series of Preferred Stock, par
              value $.01 per share, of the Corporation be, and it hereby is,
              created, with such voting powers, preferences and relative,
              participating, optional or other special rights, and such
              qualifications, limitations or restrictions thereof, as follows:

         Section 1. DESIGNATION AND AMOUNT. There shall be a series of Preferred
Stock of the Corporation which shall be designated as "Series E Junior
Participating Cumulative Preferred Stock," par value $.01 per share (hereinafter
called "Series E Preferred Stock"), and the number of shares constituting such
series shall be 1,000,000. Such number of shares may be increased or decreased
by resolution of the Board of Directors and by the filing of articles of
amendment pursuant to the provisions of the General Corporation Law of the State
of Maryland stating that such increase or reduction has been so authorized;
PROVIDED, HOWEVER, that no decrease shall


<PAGE>   49

reduce the number of shares of Series E Preferred Stock to a number less than
that of the shares then outstanding plus the number of shares of Series E
Preferred Stock issuable upon exercise of outstanding rights, options or
warrants or upon conversion of outstanding securities issued by the Corporation.

         Section 2. DIVIDENDS AND DISTRIBUTIONS.

         (A)  (i) Subject to the rights of the holders of any shares of any
series of preferred stock (or any similar stock) ranking prior and superior to
the Series E Preferred Stock with respect to dividends, the holders of shares of
Series E Preferred Stock, in preference to the holders of shares of common stock
and of any other junior stock, shall be entitled to receive, when, as and if
declared by the Board of Directors out of funds legally available for the
purpose, quarterly dividends payable in cash on the first day of March, June,
September and December in each year (each such date being referred to herein as
a "Quarterly Dividend Payment Date"), commencing on the first Quarterly Dividend
Payment Date after the first issuance of a share or fraction of a share of
Series E Preferred Stock, in an amount per share (rounded to the nearest cent)
equal to the greater of (a) $1.00 or (b) subject to the provisions 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 shares of
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 E Preferred Stock. The
multiple of cash and non-cash dividends declared on the common stock to which
holders of the Series E Preferred Stock are entitled, which shall be 1,000
initially but which shall be adjusted from time to time as hereinafter provided,
is hereinafter referred to as the "Dividend Multiple." In the event the
Corporation shall at any time after March 9, 1998 (the "Rights Declaration
Date") (i) declare or pay any dividend on the shares of common stock payable in
shares of common stock, or (ii) effect a subdivision or combination or
consolidation of the outstanding shares of common stock (by reclassification or
otherwise than by payment of a dividend in shares of common stock) into a
greater or lesser number of shares of common stock, then in each such case the
Dividend Multiple thereafter applicable to the determination of the amount of
dividends which holders of shares of Series E Preferred Stock shall be entitled
to receive shall be the Dividend Multiple applicable immediately prior to such
event multiplied 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.

              (ii) Notwithstanding anything else contained in this paragraph
(A), the Corporation shall, out of funds legally available for that purpose,
declare a dividend or distribution on the Series E Preferred Stock as provided
in this paragraph (A) immediately after it declares a dividend or distribution
on the shares of common stock (other than a dividend payable in shares of common
stock); provided that, in the event no dividend or distribution shall have been



                                        2

<PAGE>   50

declared on the shares of common stock during the period between any Quarterly
Dividend Payment Date and the next subsequent Quarterly Dividend Payment Date, a
dividend of $1.00 per share on the Series E Preferred Stock shall nevertheless
be payable on such subsequent Quarterly Dividend Payment Date.

         (B)  Dividends shall begin to accrue and be cumulative on outstanding
shares of Series E Preferred Stock from the Quarterly Dividend Payment Date next
preceding the date of issue of such shares of Series E 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 E 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 E 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 in
accordance with applicable law a record date for the determination of holders of
shares of Series E Preferred Stock entitled to receive payment of a dividend or
distribution declared thereon, which record date shall be not more than such
number of days prior to the date fixed for the payment thereof as may be allowed
by applicable law.

         Section 3. VOTING RIGHTS. In addition to any other voting rights
required by law, the holders of shares of Series E Preferred Stock shall have
the following voting rights:

         (A)  Subject to the provision for adjustment hereinafter set forth,
each share of Series E Preferred Stock shall entitle the holder thereof to 1,000
votes on all matters submitted to a vote of the stockholders of the Corporation.
The number of votes which a holder of a share of Series E Preferred Stock is
entitled to cast, which shall initially be 1,000 but which may be adjusted from
time to time as hereinafter provided, is hereinafter referred to as the "Vote
Multiple." In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare or pay any dividend on shares of common stock
payable in shares of common stock, or (ii) effect a subdivision or combination
or consolidation of the outstanding shares of common stock (by reclassification
or otherwise than by payment of a dividend in shares of common stock) into a
greater or lesser number of shares of common stock, then in each such case the
Vote Multiple thereafter applicable to the determination of the number of votes
per share to which holders of shares of Series E Preferred Stock shall be
entitled shall be the Vote Multiple immediately prior to such event multiplied
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 E Preferred Stock and the holders of shares of common stock and
the holders of shares of any other



                                        3

<PAGE>   51

capital stock of this Corporation having general voting rights, shall vote
together as one class on all matters submitted to a vote of stockholders of the
Corporation.

         (C)  (i)   Whenever, at any time or times, dividends payable on any
shares of Series E Preferred Stock shall be in arrears in an amount equal to at
least two full quarter dividends (whether or not declared and whether or not
consecutive), the holders of record of the outstanding shares of Series E
Preferred Stock shall have the exclusive right, voting separately as a single
class, to elect two directors of the Corporation at a special meeting of
shareholders of the Corporation or at the Corporation's next annual meeting of
shareholders, and at each subsequent annual meeting of shareholders, as provided
below. At elections for such directors, each share of Series E Preferred Stock
shall entitle the holder thereof to 1,000 votes in such elections.

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

              (iii) The right of the holders of shares of Series E Preferred
         Stock, voting



                                        4

<PAGE>   52

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

         (D)   Except as otherwise required by applicable law or as set forth
herein, holders of Series E 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 shares of common stock as set forth herein) for taking
any corporate action.

         Section 4. CERTAIN RESTRICTIONS.

         (A)   Whenever dividends or distributions payable on the Series E
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 E 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 E Preferred
               Stock;

         (ii)  declare or pay dividends on or make any other distributions on
               any shares of stock ranking on a parity (either as to dividends
               or upon liquidation, dissolution or winding up) with the Series E
               Preferred Stock, except dividends paid ratably on the Series E
               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) except as permitted in subsection 4(A)(iv) below, redeem,
               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 E




                                        5

<PAGE>   53

               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 E Preferred Stock; or

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

         (B)   The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any shares of
stock of the Corporation unless the Corporation could, under subsection (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 E Preferred Stock
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and canceled promptly after the acquisition thereof. All such
shares shall upon their cancellation become authorized but unissued shares of
preferred stock and may be reissued as part of a new series of preferred stock
to be created by resolution or resolutions of the Board of Directors, subject to
the conditions and restrictions on issuance set forth herein.

         Section 6. LIQUIDATION, DISSOLUTION OR WINDING UP. Upon any liquidation
(voluntary or otherwise), dissolution or winding up of the Corporation, no
distribution shall be made (x) to the holders of shares of stock ranking junior
(either as to dividends or upon liquidation, dissolution or winding up) to the
Series E Preferred Stock unless, prior thereto, the holders of Series E
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) $1,000.00 per share or
(2) an aggregate amount per share, subject to the provision for adjustment
hereinafter set forth, equal to 1,000 times the aggregate amount to be
distributed per share to holders of shares of common stock, or (y) to the
holders of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Series E Preferred Stock,
except distributions made ratably on the Series E Preferred Stock and all other
such parity stock in proportion to the total amounts to which the holders of all
such shares are entitled upon such liquidation, dissolution or winding up. In
the event the Corporation shall at any time after the Rights Declaration Date
(i) declare or pay any dividend on shares of common stock payable in shares of
common stock, or (ii) effect a subdivision or combination or consolidation of
the outstanding shares of common stock (by reclassification or otherwise than by



                                        6

<PAGE>   54

payment of a dividend in shares of common stock) into a greater or lesser number
of shares of common stock, then in each such case the aggregate amount per share
to which holders of shares of Series E Preferred Stock were entitled immediately
prior to such event under clause (x) of the preceding sentence shall be adjusted
by multiplying such amount by a fraction, the numerator of which is the number
of shares of common stock outstanding immediately after such event and the
denominator of which is the number of shares of common stock that were
outstanding immediately prior to such event.

         Neither the consolidation of nor merging of the Corporation with or
into any other corporation or corporations, nor the sale or other transfer of
all or substantially all of the assets of the Corporation, shall be deemed to be
a liquidation, dissolution or winding up of the Corporation within the meaning
of this Section 6.

         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 E 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,
plus accrued and unpaid dividends, if any, payable with respect to the Series E
Preferred Stock. In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare or pay any dividend on shares of common stock
payable in shares of common stock, or (ii) effect a subdivision or combination
or consolidation of the outstanding shares of common stock (by reclassification
or otherwise than by payment of a dividend in shares of common stock) into a
greater or lesser number of shares of common stock, then in each such case the
amount set forth in the preceding sentence with respect to the exchange or
change of shares of Series E Preferred Stock shall be adjusted by multiplying
such amount by a fraction, the numerator of which is the number of shares of
common stock outstanding immediately after such event and the denominator of
which is the number of shares of common stock that were outstanding immediately
prior to such event.

         Section 8. REDEMPTION. The shares of Series E Preferred Stock shall not
be redeemable; PROVIDED, HOWEVER, that the foregoing shall not limit the ability
of the Corporation to purchase or otherwise deal in such shares to the extent
otherwise permitted hereby and by law.

         Section 9. RANKING. Unless otherwise expressly provided in the Articles
of Incorporation or Articles Supplementary relating to any other series of
preferred stock of the Corporation, the Series E Preferred Stock shall rank
junior to every other series of the Corporation's preferred stock previously or
hereafter authorized, as to the payment of dividends and the distribution of
assets on liquidation, dissolution or winding up and shall rank senior to the
common stock.




                                        7

<PAGE>   55

         Section 10. AMENDMENT. Neither these Articles Supplementary nor the
Articles of Incorporation of the Corporation may be amended in any manner which
would materially alter or change the powers, preferences or special rights of
the Series E 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 E Preferred Stock, voting separately as a class.

         Section 11. FRACTIONAL SHARES. Shares of Series E Preferred Stock may
be issued in whole shares or in any fraction of a share that is one
ten-thousandth (1/1,000th) of a share or any integral multiple of such fraction,
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 shares
of Series E Preferred Stock. In lieu of fractional shares, the Corporation may
elect to make a cash payment as provided in the Rights Agreement for fractions
of a share other than one ten-thousandth (1/1,000th) of a share or any integral
multiple thereof."

        The Corporation has caused these Articles Supplementary to be executed
in its name and on its behalf by the President of the Corporation who
acknowledges that these Articles Supplementary are the act of the Corporation
and that to the best of his knowledge, information and belief and under
penalties for perjury, all matters and facts contained in these Articles
Supplementary are true in all material respects.





                                        8

<PAGE>   56

         IN WITNESS WHEREOF, these Articles Supplementary have been executed on
behalf of the Corporation by its President and attested by its Secretary this
___ day of March, 1998.

                                               BAY APARTMENT COMMUNITIES, INC.


                                               By: ___________________________
                                                   Gilbert M. Meyer
                                                   President


(SEAL)


ATTEST:


By:  ___________________________
     Jeffrey B. Van Horn
     Secretary




                                        9

<PAGE>   57

                                                                       EXHIBIT B


                           [Form of Right Certificate]



Certificate No. R-                                                 _____ Rights



NOT EXERCISABLE AFTER MARCH 9, 2008 OR EARLIER IF NOTICE OF REDEMPTION IS
GIVEN. THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF BAY APARTMENT
COMMUNITIES, INC., AT $0.01 PER RIGHT ON THE TERMS SET FORTH IN THE SHAREHOLDER
RIGHTS AGREEMENT BETWEEN BAY APARTMENT COMMUNITIES, INC. AND AMERICAN STOCK
TRANSFER AND TRUST COMPANY, AS RIGHTS AGENT, DATED AS OF MARCH 9, 1998 (THE
"RIGHTS AGREEMENT"). UNDER CERTAIN CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF
THE RIGHTS AGREEMENT, RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING PERSON OR AN
ASSOCIATE OR AFFILIATE 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.


Right Certificate

BAY APARTMENT COMMUNITIES, INC.


This certifies that ______________, or registered assigns, is the registered
owner of the number of Rights set forth above, each of which entitles the owner
thereof, subject to the terms, provisions and conditions of the Shareholder
Rights Agreement dated as of March 9, 1998 (the "Rights Agreement") between BAY
APARTMENT COMMUNITIES, INC. (the "Company") and AMERICAN STOCK TRANSFER AND
TRUST COMPANY, as Rights Agent (the "Rights Agent"), to purchase from the
Company at any time after the Distribution Date (as such term is defined in the
Rights Agreement) and prior to the close of business on March 9, 2008 at the
office or offices of the Rights Agent designated for such purpose, or its
successors as Rights Agent, one one-thousandth of a fully paid, non-assessable
share of Series E Junior Participating Cumulative Preferred Stock (the
"Preferred Stock") of the Company, at a purchase price of $_______ per one
one-thousandth of a share (the "Exercise Price"), upon presentation and
surrender of this Right Certificate with the Form of Election to Purchase and
the related Certificate duly executed. The number of Rights evidenced by this
Right Certificate (and the number of shares which may be purchased upon exercise
thereof) set forth above, and the Exercise Price per share set forth above, are
the number and Exercise Price as of __________, based on the shares of Preferred
Stock as constituted at such date.


<PAGE>   58

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

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

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

         This Right Certificate, with or without other Right Certificates, upon
surrender at the office or offices of the Rights Agent designated for such
purpose, may be exchanged for another Right Certificate or Certificates of like
tenor and date evidencing Rights entitling the holder to purchase a like
aggregate number of shares of Preferred Stock as the Rights evidenced by the
Right Certificate or Certificates surrendered shall have entitled such holder to
purchase. If this Right Certificate shall be exercised in part, the holder shall
be entitled to receive upon surrender hereof another Right Certificate or
Certificates for the number of whole Rights not exercised. If this Right
Certificate shall be exercised in whole or in part pursuant to Section 11(a)(ii)
of the Rights Agreement, the holder shall be entitled to receive this Right
Certificate duly marked to indicate that such exercise has occurred as set forth
in the Rights Agreement.

         Under certain circumstances, subject to the provisions of the Rights
Agreement, the Board of Directors of the Company at its option may exchange all
or any part of the Rights evidenced by this Certificate for the Company's Common
Stock or Preferred Stock at an exchange ratio (subject to adjustment) specified
in the Rights Agreement.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Certificate may be redeemed by the Board of Directors of the Company at
its option at a



                                        2

<PAGE>   59

redemption price of $0.01 per Right (payable in cash, Common Shares or other
consideration deemed appropriate by the Board of Directors).

         The Company is not obligated to issue fractional shares of stock upon
the exercise of any Right or Rights evidenced hereby (other than fractions which
are integral multiples of one one-thousandth of a Preferred Share, which may, at
the election of the Company, be evidenced by depositary receipts). If the
Company elects not to issue such fractional shares, in lieu thereof a cash
payment will be made, as provided in the Rights Agreement.

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

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



                                        3

<PAGE>   60

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


[Corporate Seal]                               BAY APARTMENT COMMUNITIES, INC.


Attested:                                      By  _____________________________
                                                   Name:
By  ___________________________________            Title: [Chairman, Vice
     [Secretary or Assistant Secretary]                   Chairman, President or
                                                          Vice President]




Countersigned:

[----------------------------],
as Rights Agent



_______________________________________
Authorized Signatory

Date of countersignature:




                                        4

<PAGE>   61

                   [Form of Reverse Side of Right Certificate]

                               FORM OF ASSIGNMENT

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


FOR VALUE RECEIVED _____________ hereby sells, assigns and transfers unto
_______________________________ (Please print name and address of transferee)
_______________________________ this Right Certificate, together with all right,
title and interest therein, and does hereby irrevocably constitute and appoint
_____________ Attorney, to transfer the within Right Certificate on the books of
the within-named Company, with full power of substitution.


Dated: _________________


                                               _________________________________
                                               Signature


Signature Guaranteed: _______________________





                                        5

<PAGE>   62

                                   CERTIFICATE


         The undersigned hereby certifies by checking the appropriate boxes
that:

         (1)   the Rights evidenced by this Right Certificate are are not being
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); and

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


Dated: _________________                       _________________________________
                                               Signature



                                        6

<PAGE>   63

                                     NOTICE


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






                                        7

<PAGE>   64

                          FORM OF ELECTION TO PURCHASE

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


To BAY APARTMENT COMMUNITIES, INC.:

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

Please insert social security
or other identifying taxpayer number: ______________


________________________________________________________________________________
                         (Please print name and address)


________________________________________________________________________________

         If such number of Rights shall not be all the Rights evidenced by this
Right Certificate or if the Rights are being exercised pursuant to Section
11(a)(ii) of the Rights Agreement, a new Right Certificate for the balance of
such Rights shall be registered in the name of and delivered to:

Please insert social security
or other identifying taxpayer number: ______________


________________________________________________________________________________
                         (Please print name and address)

________________________________________________________________________________

________________________________________________________________________________


Dated: _________________


                                               _________________________________
                                               Signature


Signature Guaranteed: _______________________




                                        8

<PAGE>   65

                                   CERTIFICATE


         The undersigned hereby certifies by checking the appropriate boxes
that:

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

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


Dated: _________________                       _________________________________
                                               Signature





                                        9

<PAGE>   66

                                     NOTICE

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








                                       10


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