UNICOM CORP
8-K, 1998-02-06
ELECTRIC SERVICES
Previous: UNICOM CORP, 8-A12B, 1998-02-06
Next: MOTORCAR PARTS & ACCESSORIES INC, SC 13G, 1998-02-06



<PAGE>

- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                 _____________


                                   FORM 8-K


                                CURRENT REPORT
                                        

    Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


                               February 2, 1998
               Date of Report (Date of earliest event reported)



                             ____________________


                              UNICOM CORPORATION
            (Exact name of registrant as specified in its charter)

                                   ILLINOIS
                (State or other jurisdiction of incorporation)


       1-11375                                         36-3961038
(Commission file number)                               (I.R.S. Employer 
                                                       Identification Number)

                     37th Floor, 10 South Dearborn Street
                            Post Office Box A-3005
                         Chicago, Illinois  60690-3005
              (Address of principal executive offices)(Zip code)

                                (312) 394-7399
             (Registrant's telephone number, including area code)

- -------------------------------------------------------------------------------
<PAGE>
 
Item 5.  Other Events
 
     On February 2, 1998, the Board of Directors of Unicom Corporation (the
"Company") declared a dividend distribution of one Right for each outstanding
share of the Company's common stock, without par value ("Common Stock"), to
shareholders of record at the close of business on February 13, 1998. Each Right
entitles the registered holder to purchase from the Company one-thousandth of
one share of Common Stock at a purchase price (the "Purchase Price") of $100 per
whole share of Common Stock (equivalent to $.10 for each one-thousandth of one
share of Common Stock), subject to adjustment. The description and terms of the
Rights are set forth in a Rights Agreement (the "Rights Agreement") dated as of
February 2, 1998 between the Company and First Chicago Trust Company of New
York, as Rights Agent.

     Initially, the Rights will be attached to all Common Stock certificates
representing shares then outstanding, and no separate Rights certificates will
be distributed. The Rights will separate from the Common Stock and the
Distribution Date will occur upon the earlier of (i) 10 days following a public
announcement that a person or group of affiliated or associated persons (an
"Acquiring Person") has acquired, or obtained the right to acquire, beneficial
ownership of 15% or more of the outstanding shares of Common Stock (the "Stock
Acquisition Date"), or (ii) 10 business days (or such later date as may be
determined by action of the Board of Directors prior to such time as any person
or group becomes an Acquiring Person) following the commencement of a tender
offer or exchange offer, which, if consummated, would result in a person or
group becoming an Acquiring Person.

     Until the Distribution Date, (i) the Rights will be evidenced by the Common
Stock certificates and will be transferred with and only with such Common Stock
certificates, (ii) new Common Stock certificates issued after February 13, 1998
will contain a notation incorporating the Rights Agreement by reference and
(iii) the surrender for transfer of any certificates for Common Stock
outstanding will also constitute the transfer of the Rights associated with the
Common Stock represented by such certificate.

     The Rights are not exercisable until the Distribution Date and will expire
at the close of business on February 2, 2008, unless earlier redeemed by the
Company as described below.

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

                                      -1-
<PAGE>
 
     In the event that, at any time following the Distribution Date, a person or
group becomes an Acquiring Person, each holder of a Right will thereafter have
the right to receive, upon exercise, Common Stock at a 50% discount from the
then current market price. If an insufficient number of shares of Common Stock
is authorized for issuance, then the Board would be required to substitute cash,
property or other securities of the Company for the Common Stock.
Notwithstanding any of the foregoing, following the occurrence of the event set
forth in this paragraph, all rights that are, or (under certain circumstances
specified in the Rights Agreement) were, beneficially owned by any Acquiring
Person will be null and void. However, Rights are not exercisable following the
occurrence of the event set forth in this paragraph until such time as the
Rights are no longer redeemable by the Company as set forth below.

     For example, at an exercise price of $100 per Right, each Right not owned
by an Acquiring Person (or by certain related parties) following an event set
forth in the preceding paragraph would entitle its holder to purchase $200 worth
of Common Stock (or other consideration, as noted above) at a purchase price per
share equal to 50% of the then current market price of a share of Common Stock.
Assuming that the Common Stock had a per share value of $50 at such time, the
holder of each valid Right would be entitled to purchase four shares of Common
Stock for $100.

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

     The purchase price payable, and the number of shares of Common 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 stock
dividend on, or a subdivision, combination or reclassification of, the shares of
Common Stock, (ii) if holders of the Common Stock are granted certain rights,
options or warrants to subscribe for Common Stock or convertible securities at
less than the current market price of the Common Stock, or (iii) upon the
distribution to holders of the Common 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 Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price. No fractional shares of Common Stock will be issued. In lieu thereof,
there shall be paid to registered holders of Rights Certificates an amount in
cash based on the market price of the shares of Common Stock on the last trading
day prior to the date of exercise.

                                      -2-
<PAGE>
 
     At any time after any person or group becomes an Acquiring Person and prior
to the acquisition by such person or group of 50% or more of the outstanding
shares of Common Stock, the Board of Directors of the Company may exchange the
Rights (other than Rights owned by such person or group which will have become
void), in whole or in part, at an exchange ratio of one share of Common Stock
(or other equity securities of the Company having equivalent rights, preferences
and privileges), per Right (subject to adjustment).

     In general, the Company may redeem the Rights in whole, but not in part, at
a price of $.01 per Right (subject to adjustment and payable in cash, Common
Stock or other consideration deemed appropriate by the Board of Directors) at
any time until ten days following the Stock Acquisition Date. Immediately upon
the action of the Board of Directors authorizing any redemption, the Rights will
terminate and the only right of the holders of Rights will be to receive the
redemption price. Notwithstanding the foregoing, in the event that a majority of
the Board of Directors is elected by shareholder action by written consent, or
is comprised of persons elected at a meeting of shareholders who were not
nominated by the Board of Directors in office immediately prior to such meeting,
then (i) for a period of one hundred eighty days (180) days following the
effectiveness of such election (the "180 Day Period"), the Rights may not be
redeemed and (ii) after such 180 Day Period, the Rights may not be redeemed
unless (A) the Board of Directors has one or more directors (the "Disinterested
Director(s)") who are not officers or employees of the Company and are not
Affiliates of any Person that has in the last two years publicly stated an
intent to acquire all or a majority of the common equity interests in the
Company or a majority in value of the Company's assets (whether by purchase of
securities, assets, merger or otherwise) and (B) the redemption of the Rights is
approved by a majority of the Disinterested Director(s).

     Until a Right is exercised, the holder thereof, as such, will have no
rights as a shareholder of the Company, including, without limitation, the right
to vote or to receive dividends. While the distribution of the Rights will not
result in the recognition of taxable income by shareholders or the Company,
shareholders may, depending upon the circumstances, recognize taxable income
after a Triggering Event.

     The terms of the Rights may be amended by the Board of Directors of the
Company without the consent of the holders of the Rights, including an amendment
to lower certain thresholds described above to not less than the greater of (i)
the sum of .001% and the largest percentage of the outstanding shares of Common
Stock then known to the Company to be beneficially owned by any person or group
of affiliated or associated persons and (ii) 10%, except that from and after
such time as any person or group of affiliated or associated persons becomes an
Acquiring Person no such amendment may adversely affect the interests of the
holders of the Rights.

                                      -3-
<PAGE>
 
     A copy of the Rights Agreement is available free of charge from the
Company. This description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement, which is filed
herewith as an exhibit and incorporated herein by reference.


Item 7.   Financial Statements, Pro Forma Financial Information and Exhibits.

     No financial statements or pro forma financial information are required to
be filed as a part of this report. The exhibit filed as part of this report is
listed in the Exhibit Index hereto.

                                      -4-
<PAGE>
 
                                   SIGNATURES


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

                              UNICOM CORPORATION



                              By:  /s/ John C. Bukovski
                                   --------------------
                                   John C. Bukovski
                                   Senior Vice President



Dated:  February 6, 1998

                                      -5-
<PAGE>
 
                              UNICOM CORPORATION

                                 EXHIBIT INDEX

                      Number and Description of Exhibit*



1.   None

2.   None

4.   Rights Agreement dated as of February 2, 1998 between Unicom Corporation
     and First Chicago Trust Company of New York, as Rights Agent.

16.  None

17.  None

20.  None

23.  None

24.  None

27.  None



- ------------------------------------------- 
   *Exhibits not listed are inapplicable.


                                      -6-

<PAGE>

                                                                       Exhibit 4




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


 
                               Unicom Corporation


                                      and


                    First Chicago Trust Company of New York


                                  Rights Agent


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


                                Rights Agreement


                          Dated as of February 2, 1998




- --------------------------------------------------------------------------------
<PAGE>
 
                               Table of Contents
<TABLE>
<CAPTION>
Section                                                                             Page
<S>                                                                                 <C>

Section 1.  Certain Definitions......................................................  1
Section 2.  Appointment of Rights Agent..............................................  4
Section 3.  Issue of Rights Certificates.............................................  4
Section 4.  Form of Rights Certificates..............................................  6
Section 5.  Countersignature and Registration........................................  6
Section 6.  Transfer, Split Up, Combination and Exchange of Rights Certificates;
            Mutilated, Destroyed, Lost or Stolen Rights Certificates.................  7
Section 7.  Exercise of Rights; Purchase Price; Expiration Date of Rights............  8
Section 8.  Cancellation and Destruction of Rights Certificates...................... 10
Section 9.  Reservation and Availability of Capital Stock............................ 10
Section 10. Common Stock Record Date................................................. 11
Section 11. Adjustment of Purchase Price, Number and Kind of Shares
            or Number of Rights...................................................... 12
Section 12. Certificate of Adjusted Purchase Price or Number of Shares............... 19
Section 13. Consolidation, Merger or Sale or Transfer of Assets or Earning Power..... 19
Section 14. Fractional Rights and Fractional Shares.................................. 21
Section 15. Rights of Action......................................................... 22
Section 16. Agreement of Rights Holders.............................................. 22
Section 17. Rights Certificate Holder Not Deemed a Shareholder....................... 23
Section 18. Concerning the Rights Agent.............................................. 23
Section 19. Merger or Consolidation or Change of Name of Rights Agent................ 23
Section 20. Duties of Rights Agent................................................... 24
Section 21. Change of Rights Agent................................................... 26
Section 22. Issuance of New Rights Certificates...................................... 27
Section 23. Redemption and Termination............................................... 27
Section 24. Exchange................................................................. 28
Section 25. Notice of Certain Events................................................. 29
Section 26. Notices.................................................................. 30
Section 27. Supplements and Amendments............................................... 30
Section 28. Successors............................................................... 31
Section 29. Determination and Actions by the Board of Directors, etc................. 31
Section 30. Benefits of this Agreement............................................... 31
Section 31. Severability............................................................. 32
Section 32. Governing Law............................................................ 32
Section 33. Counterparts............................................................. 32
Section 34. Descriptive Headings..................................................... 32
</TABLE>

                                      -i-

<PAGE>
 
                               RIGHTS AGREEMENT
                               ----------------

     This RIGHTS AGREEMENT, dated as of February 2, 1998 (this "Agreement"), is
by and between Unicom Corporation, an Illinois corporation (the "Company"), and
First Chicago Trust Company of New York, a New York corporation (the "Rights
Agent").

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

     WHEREAS, on February 2, 1998 (the "Rights Dividend Declaration Date"), the
Board of Directors of the Company authorized and declared, a dividend
distribution of one Right (as hereinafter defined) for each share of Common
Stock (as hereinafter defined) of the Company outstanding at the Close of
Business on February 13, 1998 (the "Record Date"), each Right initially
representing the right to purchase one-thousandth of a share of Common Stock of
the Company, upon the terms and subject to the conditions hereinafter set forth
(the "Rights"), and has further authorized the issuance of one Right for each
share of Common Stock issued between the Record Date and the earlier of the
Distribution Date and the Expiration Date (as such terms are hereinafter
defined) or, in certain circumstances provided in Section 22, after the
Distribution Date.

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

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

     (a)  "Acquiring Person" shall mean any Person who or which, together with
all Affiliates and Associates of such Person, shall be the Beneficial Owner of
15% or more of the shares of Common Stock then outstanding, but shall not
include the Company, any Subsidiary of the Company, any employee benefit plan of
the Company or of any Subsidiary of the Company, or any Person organized,
appointed or established by the Company for or pursuant to the terms of any such
plan.  Notwithstanding the foregoing, no Person shall become an "Acquiring
Person" as the result of an acquisition of shares of Common Stock by the Company
which, by reducing the number of shares outstanding, increases the proportionate
number of shares beneficially owned by such Person to 15% or more of the shares
of Common Stock then outstanding; provided, however, that if a Person shall
become the Beneficial Owner of 15% or more of the shares of Common Stock 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 of Common Stock, then such Person shall be deemed to be an "Acquiring
Person".  Notwithstanding the foregoing, if the Board of Directors of the
Company determines in good faith that a Person who would otherwise be an
"Acquiring Person" (as defined pursuant to the foregoing provisions of this
paragraph (a)) has become such inadvertently, and such Person divests as
promptly as practicable a sufficient number of shares of Common Stock so that
such Person would no longer be an "Acquiring Person" (as defined pursuant to the
foregoing provisions of this paragraph (a)), then such Person shall not be
deemed to be an "Acquiring Person" for any purposes of this Agreement.

                         
<PAGE>
 
     (b)  "Act" shall mean the Securities Act of 1933, as amended.

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

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

          (i)  which such Person or any of such Person's Affiliates or
     Associates, directly or indirectly, has the right to acquire (whether such
     right is exercisable immediately or only after the passage of time)
     pursuant to any agreement, arrangement or understanding (whether or not in
     writing) or upon the exercise of conversion rights, exchange rights,
     rights, warrants or options, or otherwise; provided, however, that a Person
     shall not be deemed the "Beneficial Owner" of, or to "beneficially own,"
     (A) securities tendered pursuant to a tender or exchange offer made by such
     Person or any of such Person's Affiliates or Associates until such tendered
     securities are accepted for purchase or exchange, or (B) securities
     issuable upon exercise of Rights at any time prior to the occurrence of a
     Triggering Event, or (C) securities issuable upon exercise of Rights from
     and after the occurrence of a Triggering Event which Rights were acquired
     by such Person or any such Person's Affiliates or Associates prior to the
     Distribution Date or pursuant to Section 3(a) or Section 22 (the "Original
     Rights") or pursuant to Section 11(i) in connection with an adjustment made
     with respect to any Original Rights;

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

          (iii)  which are beneficially owned, directly or indirectly, by any
     other Person (or any Affiliate or Associate thereof) with which such Person
     (or any of such Person's Affiliates or Associates) has any agreement,
     arrangement or understanding (whether or not in writing), for the purpose
     of acquiring, holding, voting (except pursuant to a revocable proxy as
     described in the proviso to
                 
                                      -2-
<PAGE>
 
     subparagraph (ii) of this paragraph (d)) or disposing of any voting
     securities of the Company;

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

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

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

     (g)  "Common Stock" shall mean the common stock, without par value, of the
Company, except that "Common Stock" when used with reference to any Person other
than the Company shall mean the capital stock of such Person with the greatest
voting power, or the equity securities or other equity interest having power to
control or direct the management, of such Person.

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

     (i)  "Section 11(a)(ii) Event" shall mean the event described in Section
11(a)(ii).

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

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

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

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

     In addition, for purposes of this Agreement, the following terms have the
meanings indicated in specified sections of this Agreement:  (i) "Adjustment
Shares" shall have the meaning
                    
                                      -3-
<PAGE>
 
set forth in Section 11(a)(ii); (ii) "common share equivalents" shall have the
meaning set forth in Section 11(a)(iii); (iii) "current market price" shall have
the meanings set forth in Section 11(d); (iv) "Current Value" shall have the
meaning set forth in Section 11(a)(iii); (v) "Distribution Date" shall have the
meaning set forth in Section 3(a); (vi) "equivalent common shares" shall have
the meaning set forth in Section 11(b); (vii) "Nasdaq" shall have the meaning
set forth in Section 11(d); (viii) "Principal Party" shall have the meaning set
forth in Section 13(b); (ix) "Purchase Price" shall have the meaning set forth
in Sections 4(a), 11(a)(ii) and 13; (x) "Redemption Price" shall have the
meaning set forth in Section 23(a); (xi) "Rights Certificates" shall have the
meaning set forth in Section 3(a); (xii) "Section 11(a)(ii) Trigger Date" shall
have the meaning set forth in Section 11(a)(iii); (xiii) "Spread" shall have the
meaning set forth in Section 11(a)(iii); (xiv) "Substitution Period" shall have
the meaning set forth in Section 11(a)(iii); (xv) "Summary of Rights" shall have
the meaning set forth in Section 3(b); and (xvi) "Trading Day" shall have the
meaning set forth in Section 11(d).

      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, shall, prior to the Distribution Date, also be the
holders of the Common Stock) in accordance with the terms and conditions hereof,
and the Rights Agent hereby accepts such appointment.  The Company may from time
to time appoint such Co-Rights Agents as it may deem necessary or desirable.

      Section 3.  Issue of Rights Certificates.  (a)  Until the earlier of (i)
the Close of Business on the tenth day after the Stock Acquisition Date (or, if
the tenth day after the Stock Acquisition Date occurs before the Record Date,
the Close of Business on the Record Date), or (ii) the Close of Business on the
tenth Business Day (or such later date as may be determined by action of the
Board of Directors of the Company prior to such time as any Person becomes an
Acquiring Person) after the date that a tender or exchange offer by any Person
(other than the Company, any Subsidiary of the Company, any employee benefit
plan of the Company or of any Subsidiary of the Company, or any Person
organized, appointed or established by the Company for or pursuant to the terms
of any such plan) is first published or sent or given within the meaning of Rule
14d-2(a) of the General Rules and Regulations under the Exchange Act, if upon
consummation thereof, such Person would be the Beneficial Owner of 15% or more
of the shares of Common Stock then outstanding (the earlier of (i) and (ii)
being herein referred to as the "Distribution Date"), (x) the Rights will be
evidenced (subject to the provisions of paragraph (b) of this Section 3) by the
certificates for the Common Stock registered in the names of the holders of the
Common Stock (which certificates for Common Stock shall be deemed also to be
certificates for Rights) and not by separate certificates and (y) the Rights
will be transferable only in connection with the transfer of the underlying
Common Stock (including a transfer to the Company).  As soon as practicable
after the Distribution Date, the Rights Agent will send by first-class, insured,
postage prepaid mail, to each record holder of the Common Stock as of the Close
of Business on the Distribution Date, at the address of such holder shown on the
records of the Company, one or more Rights certificates, in substantially the
form of Exhibit A hereto (the "Rights Certificates"), evidencing one Right for
each share of Common Stock so held, subject to adjustment as provided herein.
                     
                                      -4-
<PAGE>
 
     (b)  As promptly as practicable following the Record Date, the Company will
send a copy of a Summary of Rights to Purchase Common Stock, in substantially
the form attached hereto as Exhibit B (the "Summary of Rights"), by first-class,
postage prepaid mail, to each record holder of the Common Stock as of the Close
of Business on the Record Date, at the address of such holder shown on the
records of the Company. With respect to certificates for the Common Stock
outstanding as of the Record Date, until the Distribution Date, the Rights will
be evidenced by such certificates registered in the names of the holders thereof
together with a copy of the Summary of Rights attached thereto. Until the
earlier of the Distribution Date or the Expiration Date (as such term is defined
in Section 7(a)), the surrender for transfer of any certificate representing
shares of Common Stock in respect of which Rights have been issued, with or
without a copy of the Summary of Rights attached thereto, shall also constitute
the transfer of the Rights associated with such shares of Common Stock.

     (c)  Rights shall be issued in respect of all shares of Common Stock which
are issued (whether originally issued or from the Company's treasury) after the
Record Date but prior to the earlier of the Distribution Date or the Expiration
Date or, in certain circumstances provided in Section 22, after the Distribution
Date. Certificates representing such shares of Common Stock shall also be deemed
to be certificates for Rights, and shall bear the following legend:

          This certificate also evidences and entitles the holder hereof to
     certain rights as set forth in the Rights Agreement between Unicom
     Corporation (the "Company") and First Chicago Trust Company of New York
     (the "Rights Agent") dated as of February 2, 1998 (the "Rights Agreement"),
     the terms of which are hereby incorporated herein by reference and a copy
     of which is on file at the principal offices of the Company. Under certain
     circumstances, as set forth in the Rights Agreement, such Rights will be
     evidenced by separate certificates and will no longer be evidenced by this
     certificate. The Company will mail to the holder of this certificate a copy
     of the Rights Agreement, as in effect on the date of mailing, without
     charge promptly after receipt of a written request therefor. Under certain
     circumstances set forth in the Rights Agreement, Rights issued to, or held
     by, any Person who is, was or becomes an Acquiring Person or any Affiliate
     or Associate thereof (as such terms are defined in the Rights Agreement),
     whether currently held by or on behalf of such Person or by any subsequent
     holder, may become null and void.

With respect to such certificates containing the foregoing legend, until the
earlier of (i) the Distribution Date or (ii) the Expiration Date, the Rights
associated with the Common Stock represented by such certificates shall be
evidenced by such certificates alone and registered holders of Common Stock
shall also be the registered holders of the associated Rights, and the surrender
for transfer of any of such certificates shall also constitute the transfer of
the Rights associated with the Common Stock represented by such certificates. In
the event the Company purchases or acquires any shares of its Common Stock after
the Record Date but prior to the Distribution Date, any Rights associated with
such shares shall be deemed cancelled and retired so

                                      -5-
<PAGE>
 
that the Company shall not be entitled to exercise any rights associated with
shares of Common Stock which are no longer outstanding.

     Section 4.  Form of Rights Certificates. (a) The Rights Certificates (and
the forms of election to purchase and of assignment to be printed on the reverse
thereof) shall each be substantially in the form set forth in Exhibit A hereto
and may have such marks of identification or designation and such legends,
summaries or endorsements printed thereon as the Company may deem appropriate
and as are not inconsistent with the provisions of this Agreement, or as may be
required to comply with any applicable law or with any rule or regulation made
pursuant thereto or with any rule or regulation of any stock exchange on which
the Rights may from time to time be listed, or to conform to usage. Subject to
the provisions of Section 11 and Section 22, the Rights Certificates, whenever
distributed, shall be dated as of the Record Date or, in the case of Rights with
respect to shares of Common Stock issued or becoming outstanding after the
Record Date, the same date as the stock certificate evidencing such shares, and
on their face shall entitle the holders thereof to purchase such number of
shares of Common Stock as shall be set forth therein at the price per whole
share of Common Stock set forth therein (the "Purchase Price"), but the amount
of Common Stock or other type of securities purchasable upon the exercise of
each Right and the Purchase Price thereof shall be subject to adjustment as
provided herein.

     (b)  Any Rights Certificate issued pursuant to Section 3(a) or Section 22
that represents Rights beneficially owned by any Person known to be:  (i) an
Acquiring Person or any Associate or Affiliate of an Acquiring Person, (ii) a
transferee of an Acquiring Person (or of any such Associate or Affiliate) who
becomes a transferee after the Acquiring Person becomes such, or (iii) a
transferee of an Acquiring Person (or of any such Associate or Affiliate) who
becomes a transferee prior to or concurrently with the Acquiring Person becoming
such and receives such Rights pursuant to either (A) a transfer (whether or not
for consideration) from the Acquiring Person to holders of equity interests in
such Acquiring Person or to any Person with whom such Acquiring Person has any
continuing agreement, arrangement or understanding regarding the transferred
Rights or (B) a transfer which the Board of Directors of the Company has
determined is part of a plan, arrangement or understanding which has as a
primary purpose or effect avoidance of Section 7(e), and any Rights Certificate
issued pursuant to Section 6 or Section 11 upon transfer, exchange, replacement
or adjustment of any other Rights Certificate referred to in this sentence,
shall contain (to the extent feasible) the following legend:

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

     Section 5.  Countersignature and Registration. (a) The Rights Certificates
shall be executed on behalf of the Company by its Chairman, President or any
Vice President, either manually or by facsimile signature, and shall have
affixed thereto the Company's seal or a

                                      -6-
<PAGE>
 
facsimile thereof which shall be attested by the Secretary or an Assistant
Secretary of the Company, either manually or by facsimile signature.  The Rights
Certificates shall be countersigned manually or by facsimile signature by the
Rights Agent and shall not be valid for any purpose unless so countersigned.  In
case any officer of the Company who shall have signed any of the Rights
Certificates shall cease to be such officer of the Company before
countersignature by the Rights Agent and issuance and delivery by the Company,
such Rights Certificates, nevertheless, may be countersigned by the Rights Agent
and issued and delivered by the Company with the same force and effect as though
the person who signed such Rights Certificates had not ceased to be such officer
of the Company; and any Rights Certificates may be signed on behalf of the
Company by any person who, at the actual date of the execution of such Rights
Certificate, shall be a proper officer of the Company to sign such Rights
Certificate, although at the date of the execution of this Rights Agreement any
such person was not such an officer.

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

      Section 6.  Transfer, Split Up, Combination and Exchange of Rights
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.  (a)
Subject to the provisions of Section 4(b), Section 7(e) and Section 14, at any
time after the Close of Business on the Distribution Date, and at or prior to
the Close of Business on the Expiration Date, any Rights Certificate or
Certificates (other than Rights Certificates representing Rights that have
become void pursuant to Section 7(e) or that have been exchanged pursuant to
Section 24) may be transferred, split up, combined or exchanged for another
Rights Certificate or Certificates, entitling the registered holder to purchase
a like number of shares of Common Stock (or, following a Triggering Event, other
securities, cash or other assets, as the case may be) as the Rights Certificate
or Certificates surrendered then entitled such holder (or former holder in the
case of a transfer) to purchase.  Any registered holder desiring to transfer,
split up, combine or exchange any Rights Certificate or Certificates shall make
such request in writing delivered to the Rights Agent, and shall surrender the
Rights Certificate or Certificates to be transferred, split up, combined or
exchanged at the principal office or offices of the Rights Agent designated for
such purpose.  Neither the Rights Agent nor the Company shall be obligated to
take any action whatsoever with respect to the transfer of any such surrendered
Rights Certificate until the registered holder shall have completed and signed
the certificate contained in the form of assignment on the reverse side of such
Rights Certificate and shall have provided such additional evidence of the
identity of the Beneficial Owner (or former Beneficial Owner) or Affiliates or
Associates thereof as the Company shall reasonably request.  Thereupon the
Rights Agent shall, subject to Section 4(b), Section 7(e), Section 14 and
Section 24, countersign and deliver to the Person entitled thereto a Rights
Certificate or Rights Certificates, as the case may be, as so requested.  The
Company may require

                                      -7-
<PAGE>
 
payment of a sum sufficient to cover any tax or governmental charge that may be
imposed in connection with any transfer, split up, combination or exchange of
Rights Certificates.

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

     Section 7.  Exercise of Rights; Purchase Price; Expiration Date of Rights.
(a)  Subject to Section 7(e), the registered holder of any Rights Certificate
may exercise the Rights evidenced thereby (except as otherwise provided herein
including, without limitation, the restrictions on exercisability set forth in
Section 9(c), Section 11(a)(iii) and Section 23(a)) in whole or in part at any
time after the Distribution Date upon surrender of the Rights Certificate, with
the form of election to purchase and the certificate on the reverse side thereof
duly executed, to the Rights Agent at the principal office or offices of the
Rights Agent designated for such purpose, together with payment of one-
thousandth of the Purchase Price with respect to the total number of one-
thousandths of one share of Common Stock (or other securities, cash or other
assets, as the case may be) as to which such surrendered Rights are then
exercisable, at or prior to the earliest of (i) the Close of Business on
February 2, 2008 (the "Final Expiration Date"), (ii) the time at which the
Rights are redeemed as provided in Section 23 or (iii) the time at which such
Rights are exchanged pursuant to Section 24 (the earliest of (i), (ii) and (iii)
being herein referred to as the "Expiration Date").

     (b)  The Purchase Price for each whole share of Common Stock pursuant to
the exercise of a Right shall initially be $100 (equivalent to $.10 for each
one-thousandth of one share of Common Stock), and shall be subject to adjustment
from time to time as provided in Sections 11 and 13(a) and shall be payable in
accordance with paragraph (c) below.

     (c)  Upon receipt of a Rights Certificate representing exercisable Rights,
with the form of election to purchase and the certificate duly executed,
accompanied by payment of the Purchase Price for the shares of Common Stock (or
other securities, cash or other assets, as the case may be) to be purchased as
set forth below and an amount equal to any applicable transfer tax (as
determined by the Rights Agent) required to be paid by the holder of the Rights
Certificate in accordance with Section 9, the Rights Agent shall, subject to
Section 20(k), thereupon promptly (i) (A) requisition from any transfer agent of
the shares of Common Stock (or make available, if the Rights Agent is the
transfer agent for such shares) certificates for the total number of shares of
Common Stock to be purchased and the Company hereby irrevocably authorizes its
transfer agent to comply with all such requests, or (B) if the Company shall
have elected to deposit the total number of shares of the Common Stock issuable
upon exercise of the Rights hereunder with a

                                      -8-
<PAGE>
 
depositary agent, requisition from the depositary agent depositary receipts
representing such number of shares of Common Stock as are to be purchased (in
which case certificates for the shares of Common Stock represented by such
receipts shall be deposited by the transfer agent with the depositary agent) and
the Company will direct the depositary agent to comply with such request, (ii)
requisition from the Company the amount of cash, if any, to be paid in lieu of
fractional shares in accordance with Section 14, (iii) after receipt of such
certificates or depositary receipts, cause the same to be delivered to or upon
the order of the registered holder of such Rights Certificate, registered in
such name or names as may be designated by such holder, and (iv) after receipt
thereof, deliver such cash, if any, to or upon the order of the registered
holder of such Rights Certificate. The payment of the Purchase Price (as such
amount may be reduced pursuant to Section 11(a)(iii)) shall be made in cash or
by certified bank check or bank draft payable to the order of the Company. In
the event that the Company is obligated to issue other securities of the
Company, pay cash and/or distribute other property pursuant to Section 11(a),
the Company will make all arrangements necessary so that such other securities,
cash and/or other property are available for distribution by the Rights Agent,
if and when appropriate. The Company reserves the right to require prior to the
occurrence of a Triggering Event that, upon any exercise of Rights, a number of
Rights be exercised so that only whole shares of the Common Stock would be
issued.

     (d)  In case the registered holder of any Rights Certificate shall exercise
less than all the Rights evidenced thereby, a new Rights Certificate evidencing
Rights equivalent to the Rights remaining unexercised shall be issued by the
Rights Agent and delivered to, or upon the order of, the registered holder of
such Rights Certificate, registered in such name or names as may be designated
by such holder, subject to the provisions of Section 14.

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

                                      -9-
<PAGE>
 
other Person as a result of its failure to make any determinations with respect
to an Acquiring Person or any of its Affiliates, Associates or transferees
hereunder.

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

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

     Section 9.  Reservation and Availability of Capital 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 Common Stock (and, following the
occurrence of a Triggering Event, out of its authorized and unissued other
securities) or any authorized and issued shares of Common Stock held in its
treasury, the number of shares of Common Stock (and, following the occurrence of
a Triggering Event, other securities) that, as provided in this Agreement,
including Section 11(a)(iii), will be sufficient to permit the exercise in full
of all outstanding Rights.

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

     (c)  The Company shall use its best efforts to (i) file, as soon as
practicable following the earliest date after the first occurrence of a Section
11(a)(ii) Event on which the consideration to be delivered by the Company upon
exercise of the Rights has been determined in accordance with Section
11(a)(iii), a registration statement under the Act with respect to the
securities purchasable upon exercise of the Rights on an appropriate form, (ii)
cause such registration statement to become effective as soon as practicable
after such filing, and (iii) cause such registration statement

                                      -10-
<PAGE>
 
to remain effective (with a prospectus at all times meeting the requirements of
the Act) until the earlier of (A) the date as of which the Rights are no longer
exercisable for such securities, and (B) the date of the expiration of the
Rights. The Company will also take such action as may be appropriate under, or
to ensure compliance with, the securities or "blue sky" laws of the various
states in connection with the exercisability of the Rights. The Company may
temporarily suspend, for a period of time not to exceed ninety (90) days after
the date set forth in clause (i) of the first sentence of this Section 9(c), the
exercisability of the Rights in order to prepare and file such registration
statement and permit it to become effective. Upon any such suspension, the
Company shall issue a public announcement stating that the exercisability of the
Rights has been temporarily suspended, as well as a public announcement at such
time as the suspension is no longer in effect. In addition, if the Company shall
determine that a registration statement is required following the Distribution
Date, and a Section 11(a)(ii) Event has not occurred, the Company may
temporarily suspend the exercisability of Rights until such time as a
registration statement has been declared effective. Notwithstanding any
provision of this Agreement to the contrary, the Rights shall not be exercisable
in any jurisdiction if the requisite qualification or exemption in such
jurisdiction shall not have been obtained, the exercise thereof shall not be
permitted under applicable law or a registration statement shall not have been
declared effective.

     (d)  The Company covenants and agrees that it will take all such actions as
may be necessary to ensure that all shares of Common Stock (and, following the
occurrence of a Triggering Event, other securities) delivered upon exercise of
Rights shall, at the time of delivery of the certificates for such shares
(subject to payment of the Purchase Price), be duly and validly authorized and
issued and fully paid and 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 Rights Certificates and
of any shares of Common Stock (or other securities, as the case may be) upon the
exercise of Rights.  The Company shall not, however, be required to pay any
transfer tax which may be payable in respect of any transfer or delivery of
Rights Certificates to a Person other than, or the issuance or delivery of
shares of Common Stock (or other securities, as the case may be) in respect of a
name other than that of, the registered holder of the Rights Certificates
evidencing Rights surrendered for exercise or to issue or deliver any
certificates or depositary receipts for shares of Common Stock (or other
securities, as the case may be) in a name other than that of the registered
holder upon the exercise of any Rights until such tax shall have been paid (any
such tax being payable by the holder of such Rights Certificate at the time of
surrender) or until it has been established to the Company's satisfaction that
no such tax is due.

     Section 10.  Common Stock Record Date.  Each person in whose name any
certificate for shares of Common Stock (or other securities, as the case may be)
is issued upon the exercise of Rights shall for all purposes be deemed to have
become the holder of record of such shares of Common Stock (or other securities,
as the case may be) represented thereby on, and such certificate shall be dated,
the date upon which the Rights Certificate evidencing such Rights was

                                      -11-
<PAGE>
 
duly surrendered and payment of the Purchase Price (and applicable transfer
taxes) was made; provided, however, that if the date of such surrender and
payment is a date upon which the Common Stock (or other securities, as the case
may be) transfer books of the Company are closed, such Person shall be deemed to
have become the record holder of such shares on, and such certificate shall be
dated, the next succeeding Business Day on which the Common Stock (or other
securities, as the case may be) transfer books of the Company are open. Prior to
the exercise of the Rights evidenced thereby, the holder of a Rights Certificate
shall not be entitled to any rights of a 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 Purchase Price, Number and Kind of Shares or
Number of Rights. The Purchase Price, the number and kind of shares covered by
each Right and the number of Rights outstanding are subject to adjustment from
time to time as provided in this Section 11.

          (a)(i)  In the event the Company shall at any time after the date of
     this Agreement (A) declare a dividend on the Common Stock payable in shares
     of Common Stock, (B) subdivide the outstanding Common Stock, (C) combine
     the outstanding Common Stock into a smaller number of shares, or (D) issue
     any shares of its capital stock in a reclassification of the Common 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), the
     Purchase Price in effect at the time of the record date for such dividend
     or of the effective date of such subdivision, combination or
     reclassification, and the number and kind of shares of Common Stock or
     capital stock, as the case may be, issuable on such date, shall be
     proportionately adjusted so that the holder of any Right exercised after
     such time shall be entitled to receive, upon payment of the Purchase Price
     then in effect, the aggregate number and kind of shares of Common Stock or
     capital stock, as the case may be, which, if such Right had been exercised
     immediately prior to such date and at a time when the Common 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.

          (ii)  Subject to Section 24, in the event any Person becomes an
     Acquiring Person, then each holder of a Right (except as provided below and
     in Section 7(e)) shall thereafter have the right to receive, upon exercise
     thereof at a price equal to the then current Purchase Price for a whole
     share of Common Stock in accordance with the terms of this Agreement, such
     number of shares of Common Stock as shall equal the result obtained by (x)
     multiplying the then current Purchase Price for a whole share of Common
     Stock by the then number of one-thousandths of a share of Common Stock for
     which a Right was exercisable immediately prior to

                                      -12-
<PAGE>
 
     the first occurrence of a Section 11(a)(ii) Event and (y) dividing that
     product (which, following such first occurrence shall thereafter be
     referred to as the "Purchase Price" for each Right and for all purposes of
     this Agreement) by 50% of the current market price (determined pursuant to
     Section 11(d)) per share of Common Stock on the date of such first
     occurrence (such number of shares, the "Adjustment Shares").

          (iii)  In the event that the number of shares of Common Stock which
     are authorized by the Company's certificate of incorporation, but not
     outstanding or reserved for issuance for purposes other than upon exercise
     of the Rights, 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 shall: (A) determine the value of the Adjustment Shares
     issuable upon the exercise of a Right (the "Current Value"), and (B) with
     respect to each Right, make adequate provision to substitute for the
     Adjustment Shares, upon payment of the applicable Purchase Price, (1) cash,
     (2) a reduction in the Purchase Price, (3) other equity securities of the
     Company which the Board of Directors of the Company has deemed to have
     substantially the same value or economic rights as shares of Common Stock
     ("common share equivalents"), (4) debt securities of the Company, (5) other
     assets, or (6) any combination of the foregoing, having an aggregate value
     equal to the Current Value (less the amount of any reduction in the
     Purchase Price), where such aggregate value has been determined by the
     Board of Directors of the Company based upon the advice of a nationally
     recognized investment banking firm selected by the Board of Directors of
     the Company; provided, however, if the Company shall not have made adequate
     provision to deliver value pursuant to clause (B) above within thirty (30)
     days following the later of (x) the first occurrence of a 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 requiring payment of the Purchase Price, shares of Common Stock (to
     the extent available) and then, if necessary, cash, which shares and/or
     cash have an aggregate value equal to the Spread. For purposes of the
     preceding sentence, the term "Spread" shall mean the excess of (i) the
     Current Value over (ii) the Purchase Price. If the Board of Directors of
     the Company shall determine in good faith that it is likely that sufficient
     additional shares of Common Stock could be authorized for issuance upon
     exercise in full of the Rights, the thirty (30) day period set forth above
     may be extended to the extent necessary, but not more than ninety (90) days
     after the Section 11(a)(ii) Trigger Date, in order that the Company may
     seek shareholder approval for the authorization of such additional shares
     (such thirty (30) day period, as it may be extended, the "Substitution
     Period"). To the extent that action is to be taken pursuant to the first
     and/or third sentences of this Section 11(a)(iii), the Company (x) shall

                                      -13-
<PAGE>
 
     provide, subject to Section 7(e), that such action shall apply uniformly to
     all outstanding Rights, and (y) may suspend the exercisability of the
     Rights until the expiration of the Substitution Period in order to seek
     such shareholder approval for such authorization of additional shares
     and/or to decide the appropriate form of distribution to be made pursuant
     to such first sentence and to determine the value thereof. In the event of
     any such suspension, the Company shall issue a public announcement stating
     that the exercisability of the Rights has been temporarily suspended, as
     well as a public announcement at such time as the suspension is no longer
     in effect. For purposes of this Section 11(a)(iii), the value of each
     Adjustment Share shall be the current market price (as determined pursuant
     to Section 11(d)) per share of Common Stock on the Section 11(a)(ii)
     Trigger Date and the value of any "common share equivalent" shall be deemed
     to equal the current market price per share of Common Stock.

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

                                      -14-
<PAGE>
 
     (c)  In case the Company shall fix a record date for a distribution to all
holders of shares of Common Stock (including any such distribution made in
connection with a consolidation or merger in which the Company is the continuing
corporation) of evidences of indebtedness, cash (other than a regular quarterly
cash dividend out of the earnings or retained earnings of the Company), assets
(other than a dividend payable in shares of Common Stock, but including any
dividend payable in stock other than Common Stock) or subscription rights or
warrants (excluding those referred to in Section 11(b)), the Purchase Price to
be in effect after such record date shall be determined by multiplying the
Purchase Price in effect immediately prior to such record date by a fraction,
the numerator of which shall be the current market price (as determined pursuant
to Section 11(d)) per share of Common Stock on such record date, less the fair
market value (as determined in good faith by the Board of Directors of the
Company, whose determination shall be described in a statement filed with the
Rights Agent and shall be binding on the Rights Agent and the holders of the
Rights) of the portion of the cash, assets or evidences of indebtedness so to be
distributed or of such subscription rights or warrants applicable to a share of
Common Stock and the denominator of which shall be such current market price (as
determined pursuant to Section 11(d)) per share of Common Stock. Such
adjustments shall be made successively whenever such a record date is fixed, and
in the event that such distribution is not so made, the Purchase Price shall be
adjusted to be the Purchase Price which would have been in effect if such record
date had not been fixed.

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

                                      -15-
<PAGE>
 
on the principal national securities exchange on which the shares of Common
Stock are listed or admitted to trading or, if the shares of Common Stock are
not listed or admitted to trading on any national securities exchange, the last
quoted price or, if not so quoted, the average of the high bid and low asked
prices in the over-the-counter market, as reported by the National Association
of Securities Dealers, Inc. Automated Quotation System ("Nasdaq") or such other
system then in use, or, if on any such date the shares of Common Stock are not
quoted by any such organization, the average of the closing bid and asked prices
as furnished by a professional market maker making a market in the Common Stock
selected by the Board of Directors of the Company. If on any such date no market
maker is making a market in the Common Stock, the fair value of such shares on
such date as determined in good faith by the Board of Directors of the Company
shall be used. The term "Trading Day" shall mean a day on which the principal
national securities exchange on which the shares of Common Stock are listed or
admitted to trading is open for the transaction of business or, if the shares of
Common Stock are not listed or admitted to trading on any national securities
exchange, a Business Day. If the Common Stock is not publicly held or not so
listed or traded, "current market price" per share shall mean the fair value per
share as determined in good faith by the Board of Directors of the Company,
whose determination shall be described in a statement filed with the Rights
Agent and shall be conclusive for all purposes.

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

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

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

                                      -16-
<PAGE>
 
     (h)  Unless the Company shall have exercised its election as provided in
Section 11(i), upon each adjustment of the Purchase Price as a result of the
calculations made in Sections 11(b) and (c), each Right outstanding immediately
prior to the making of such adjustment shall thereafter evidence the right to
purchase, at the adjusted Purchase Price, that number of shares of Common Stock
(calculated to the nearest one-ten-thousandth) obtained by (i) multiplying (x)
the number of shares of Common Stock covered by a Right immediately prior to
this adjustment, by (y) the Purchase Price in effect immediately prior to such
adjustment of the Purchase Price, and (ii) dividing the product so obtained by
the Purchase Price in effect immediately after such adjustment of the Purchase
Price.

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

     (j)  Irrespective of any adjustment or change in the Purchase Price or the
number of shares of Common Stock issuable upon the exercise of the Rights, the
Rights Certificates theretofore and thereafter issued may continue to express
the Purchase Price and the number of shares of Common Stock which were expressed
in the initial Rights Certificates issued hereunder.

     (k)  Before taking any action that would cause an adjustment reducing the
Purchase Price below the then par value, if any, of the shares of Common Stock
issuable upon exercise of the

                                      -17-
<PAGE>
 
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 Common Stock at such adjusted
Purchase Price.

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

     (m)  Anything in this Section 11 to the contrary notwithstanding, the
Company shall be entitled to make such reductions in the Purchase Price, in
addition to those adjustments expressly required by this Section 11, as and to
the extent that the Board of Directors of the Company, in its good faith
judgment, shall determine to be advisable in order that any (i) consolidation or
subdivision of the Common Stock, (ii) issuance wholly for cash of any shares of
Common Stock at less than the current market price, (iii) issuance wholly for
cash of shares of Common Stock or securities which by their terms are
convertible into or exchangeable for shares of Common Stock, (iv) stock
dividends or (v) issuance of rights, options or warrants referred to in this
Section 11, hereafter made by the Company to holders of its Common 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, (i) consolidate with any other Person (other than a
Subsidiary of the Company in a transaction which complies with Section 11(o)),
(ii) merge with or into any other Person (other than a Subsidiary of the Company
in a transaction which complies with Section 11(o)), or (iii) sell or transfer
(or permit any Subsidiary to sell or transfer), in one transaction, or a series
of related transactions, assets or earning power aggregating more than 50% of
the assets or earning power of the Company and its Subsidiaries (taken as a
whole) to any other Person or Persons (other than the Company and/or any of its
Subsidiaries in one or more transactions each of which complies with Section
11(o)), if (x) at the time of or immediately after such consolidation, merger,
sale or transfer there are any rights, warrants or other instruments or
securities outstanding or agreements in effect which would substantially
diminish or otherwise eliminate the benefits intended to be afforded by the
Rights or (y) prior to, simultaneously with or immediately after such
consolidation, merger, sale or transfer, the shareholders of the Person who
constitutes, or would constitute, the "Principal Party" for purposes of Section
13(a) shall have received a distribution of Rights previously owned by such
Person or any of its Affiliates and Associates.

                                     -18-
<PAGE>
 
     (o)  The Company covenants and agrees that, after the Distribution Date, it
will not, except as permitted by Section 23 or Section 27, take (or permit any
Subsidiary to take) any action if at the time such action is taken it is
reasonably foreseeable that such action will diminish substantially or otherwise
eliminate the benefits intended to be afforded by the Rights.

     Section 12.  Certificate of Adjusted Purchase Price or Number of Shares.
Whenever an adjustment is made as provided in Section 11 or Section 13, 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 Common Stock, a
copy of such certificate, and (c) mail a brief summary thereof to each holder of
a Rights Certificate (or, if prior to the Distribution Date, to each holder of a
certificate representing shares of Common Stock) in accordance with Section 26.
The Rights Agent shall be fully protected in relying on any such certificate and
on any adjustment therein contained and shall not be deemed to have knowledge of
such adjustment unless and until it shall have received such certificate.

     Section 13.  Consolidation, Merger or Sale or Transfer of Assets or
Earning Power. (a) In the event that, directly or indirectly, at any time after
a Person has become an Acquiring Person, (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 complies with Section 11(o)), and the Company shall not
be the continuing or surviving corporation of such consolidation or merger, (y)
any Person (other than a Subsidiary of the Company in a transaction which
complies with Section 11(o)) shall consolidate with, or merge with or into, the
Company, and the Company shall be the continuing or surviving corporation of
such consolidation or merger and, in connection with such consolidation or
merger, all or part of the outstanding shares of Common Stock shall be changed
into or exchanged for stock or other securities of any other Person or the
Company or cash or any other property, or (z) the Company shall sell or
otherwise transfer (or one or more of its Subsidiaries shall sell or otherwise
transfer), in one 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 Person or Persons (other
than the Company or one or more of its wholly-owned Subsidiaries in one or more
transactions each of which complies with Section 11(o)), 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), shall thereafter have the right to receive upon the
exercise thereof at the then current Purchase Price for a whole share of Common
Stock in accordance with the terms of this Agreement, and in lieu of shares of
Common Stock of the Company, such number of validly authorized and issued, fully
paid, nonassessable and freely tradeable shares of Common Stock of the Principal
Party (as such term is hereinafter defined), not subject to any liens,
encumbrances, rights of first refusal or other adverse claims, as shall be equal
to the result obtained by (l) multiplying the then current Purchase Price for a
whole share of Common Stock by the number of one-thousandths of a share of
Common Stock for which a Right is exercisable immediately prior to the first
occurrence of a Section 13 Event, and dividing that product (which, following
the first occurrence of a Section 13 Event, shall be referred to as the
"Purchase Price" for each Right and for all purposes of this Agreement) by (2)
50% of the current

                                     -19-
<PAGE>
 
market price (determined pursuant to Section 11(d)) per share of Common Stock of
such Principal Party on the date of consummation of such Section 13 Event; (ii)
such Principal Party shall thereafter be liable for, and shall assume, by virtue
of such Section 13 Event, all the obligations and duties of the Company pursuant
to this Agreement; (iii) the term "Company" shall thereafter be deemed to refer
to such Principal Party, it being specifically intended that the provisions of
Section 11 shall apply only to such Principal Party following the first
occurrence of a Section 13 Event; (iv) such Principal Party shall take such
steps (including, but not limited to, the reservation of a sufficient number of
its shares of Common Stock) in connection with the consummation of any such
transaction as may be necessary to assure that the provisions hereof shall
thereafter be applicable, as nearly as reasonably may be, in relation to its
shares of Common Stock thereafter deliverable upon the exercise of the Rights;
and (v) the provisions of Section 11(a)(ii) shall be of no effect following the
first occurrence of any Section 13 Event.

     (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, and if no securities are so issued, the
     Person that is the other party to such merger or consolidation; and

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

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

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

                                     -20-
<PAGE>
 
          (i)  prepare and file a registration statement under the Act, with
     respect to the Rights and the securities purchasable upon exercise of the
     Rights on an appropriate form, and will use its best efforts to cause such
     registration statement to (A) become effective as soon as practicable after
     such filing and (B) remain effective (with a prospectus at all times
     meeting the requirements of the Act) until the Expiration Date; and

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

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

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

     (b)  The Company shall not be required to issue fractions of shares of
Common Stock upon exercise of the Rights or to distribute certificates which
evidence fractional shares of Common Stock. In lieu of fractional shares of
Common Stock, the Company shall pay to the registered holders of Rights
Certificates at the time such Rights are exercised as herein provided

                                     -21-
<PAGE>
 
an amount in cash equal to the same fraction of the current market value of one
share of Common Stock. For purposes of this Section 14(b), the current market
value of one share of Common Stock shall be the closing price of one share of
Common Stock (as determined pursuant to Section 11(d)) 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
such holder's right to receive any fractional Rights or any fractional shares
upon exercise of a Right.

     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, are vested in the respective registered holders of the
Rights Certificates (and, prior to the Distribution Date, the registered holders
of the Common Stock); and any registered holder of any Rights Certificate (or,
prior to the Distribution Date, of the Common Stock), without the consent of the
Rights Agent or of the holder of any other Rights Certificate (or, prior to the
Distribution Date, of the Common Stock), may, in such holder's own behalf and
for such 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 or her right to exercise the Rights evidenced by such Rights Certificate
in the manner provided in such Rights Certificate and in this Agreement. Without
limiting the foregoing or any remedies available to the holders of Rights, it is
specifically acknowledged that the holders of Rights would not have an adequate
remedy at law for any breach of this Agreement and shall be entitled to specific
performance of the obligations hereunder and injunctive relief against actual or
threatened violations of the obligations hereunder of any Person subject to this
Agreement.

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

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

     (b)  after the Distribution Date, the Rights Certificates are transferable
only on the registry books of the Rights Agent if surrendered at the principal
office or offices of the Rights Agent designated for such purposes, duly
endorsed or accompanied by a proper instrument of transfer and with the
appropriate forms and certificates fully executed;

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

                                     -22-
<PAGE>
 
     (d)  notwithstanding anything in this Agreement to the contrary, neither
the Company nor the Rights Agent shall have any liability to any holder of a
Right or other Person as a result of its inability to perform any of its
obligations under this Agreement by reason of any preliminary or permanent
injunction or other order, decree or ruling issued by a court of competent
jurisdiction or by a governmental, regulatory or administrative agency or
commission, or any statute, rule, regulation or executive order promulgated or
enacted by any governmental authority, prohibiting or otherwise restraining
performance of such obligation; provided, however, the Company must use
reasonable efforts to have any such order, decree or ruling lifted or otherwise
overturned as soon as possible.

     Section 17.  Rights Certificate Holder Not Deemed a Shareholder.  No
holder, as such, of any Rights Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose to be the holder of the shares of Common
Stock or any other securities of the Company which may at any time be issuable
upon the exercise of the Rights represented thereby, nor shall anything
contained herein or in any Rights Certificate be construed to confer upon the
holder of any Rights Certificate, as such, any of the rights of a 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), or to receive
dividends or subscription rights, or otherwise, until the Right or Rights
evidenced by such Rights Certificate shall have been exercised in accordance
with the provisions hereof.

     Section 18.  Concerning the Rights Agent.  (a)  The Company agrees to pay
to the Rights Agent reasonable compensation for all services rendered by it
hereunder and, from time to time, on demand of the Rights Agent, its reasonable
expenses and counsel fees and disbursements and other disbursements incurred in
the administration and execution of this Agreement and the exercise and
performance of its duties hereunder.

     (b)  The Rights Agent shall be protected and shall incur no liability for
or in respect of any action taken, suffered or omitted by it in connection with
its administration of this Agreement in reliance upon any Rights Certificate or
certificate for Common Stock or for other securities of the Company, instrument
of assignment or transfer, power of attorney, endorsement, affidavit, letter,
notice, direction, consent, certificate, statement, or other paper or document
believed by it to be genuine and to be signed, executed and, where necessary,
verified or acknowledged, by the proper Person or Persons, or otherwise upon the
advice of counsel as set forth in Section 20.

     Section 19.  Merger or Consolidation or Change of Name of Rights Agent.
(a)  Any corporation into which the Rights Agent or any successor Rights Agent
may be merged or with which it may be consolidated, or any corporation resulting
from any merger or consolidation to which the Rights Agent or any successor
Rights Agent shall be a party, or any corporation succeeding to the corporate
trust or stock transfer business of the Rights Agent or any successor Rights
Agent, shall be the successor to the Rights Agent under this Agreement without
the execution or filing of any paper or any further act on the part of any of
the parties hereto.  In case

                                      -23-
<PAGE>
 
at the time such successor Rights Agent shall succeed to the agency created by
this Agreement, any of the Rights Certificates shall have been countersigned but
not delivered, any such successor Rights Agent may adopt the countersignature of
a predecessor Rights Agent and deliver such Rights Certificates so
countersigned; and in case at the time any of the Rights Certificates shall not
have been countersigned, any successor Rights Agent may countersign such Rights
Certificates either in the name of the predecessor or in the name of the
successor Rights Agent; and in all such cases such Rights Certificates shall
have the full force provided in the Rights Certificates and in this Agreement.

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

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

     (a)  The Rights Agent may consult with legal counsel (who may be legal
counsel for the Company), and the opinion of such counsel shall be full and
complete authorization and protection to the Rights Agent as to any action taken
or omitted by it in good faith and in accordance with such opinion.

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

     (c)  The Rights Agent shall be liable hereunder only for its own 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 recital contained in this Agreement or in the Rights
Certificates or be required to verify the

                                      -24-
<PAGE>
 
same (except as to its countersignature on such Rights Certificates), but all
such statements and recitals are and shall be deemed to have been made by the
Company only.

     (e)  The Rights Agent shall not be under any responsibility in respect of
the validity of this Agreement or the execution and delivery hereof (except the
due execution hereof by the Rights Agent) or in respect of the validity or
execution of any Rights Certificate (except its countersignature thereof); nor
shall it be responsible for any breach by the Company of any covenant or
condition contained in this Agreement or in any Rights Certificate; nor shall it
be responsible for any change in the exercisability of the Rights (including
Rights becoming void pursuant to Section 7(e)) or any adjustment required under
the provisions of Section 11, Section 13 or Section 24 or responsible for the
manner, method or amount of any such adjustment or the ascertaining of the
existence of facts that would require any such adjustment (except with respect
to the exercise of Rights evidenced by Rights Certificates after actual notice
of any such adjustment); nor shall it by any act hereunder be deemed to make any
representation or warranty as to the authorization or reservation of any shares
of Common Stock to be issued pursuant to this Agreement or any Rights
Certificate or as to whether any shares of Common 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 from the
Chairman of the Board, President, any Vice President, the Secretary, any
Assistant Secretary, the Treasurer or any Assistant Treasurer of the Company,
and to apply to such officers for advice or instructions in connection with its
duties, and it shall not be liable for any action taken or suffered to be taken
by it in good faith in accordance with instructions of any such officer.

     (h)  The Rights Agent and any 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 Rights Agent under this
Agreement.  Nothing herein shall preclude the Rights Agent from acting in any
other capacity for the Company or for any other legal entity.

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

                                      -25-
<PAGE>
 
     (j)  No provision of this Agreement shall require the Rights Agent to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder or in the exercise of its rights if
there shall be reasonable grounds for believing that repayment of such funds or
adequate indemnification against such risk or liability is not reasonably
assured to it.

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

     Section 21.  Change of Rights Agent.  The Rights Agent or any successor
Rights Agent may resign and be discharged from its duties under this Agreement
upon thirty (30) days' notice in writing mailed to the Company, and to each
transfer agent of the Common Stock, by registered or certified mail, and to the
holders of the Rights Certificates by first-class mail.  The Company may remove
the Rights Agent or any successor Rights Agent upon thirty (30) days' notice in
writing, mailed to the Rights Agent or successor Rights Agent, as the case may
be, and to each transfer agent of the Common Stock, by registered or certified
mail, and to the holders of the Rights Certificates by first-class mail.  If the
Rights Agent shall resign or be removed or shall otherwise become incapable of
acting, the Company shall appoint a successor to the Rights Agent.  If the
Company shall fail to make such appointment within a period of thirty (30) days
after giving notice of such removal or after it has been notified in writing of
such resignation or incapacity by the resigning or incapacitated Rights Agent or
by the holder of a Rights Certificate (who shall, with such notice, submit his
or her Rights Certificate for inspection by the Company), then any registered
holder of any Rights Certificate may apply to any court of competent
jurisdiction for the appointment of a new Rights Agent.  Any successor Rights
Agent, whether appointed by the Company or by such a court, shall be a
corporation organized and doing business in good standing under the laws of the
United States or any state of the United States and which is authorized under
such laws to exercise corporate trust or share transfer powers. 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 reasonable assurance,
conveyance, act or deed necessary for the purpose.  Not later than the effective
date of any such appointment, the Company shall file notice thereof in writing
with the predecessor Rights Agent and each transfer agent of the Common Stock,
and mail a notice thereof in writing to the registered holders of the Rights
Certificates.  Failure to give any notice provided for in this Section 21 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.

                                      -26-
<PAGE>
 
     Section 22.  Issuance of New Rights Certificates.  Notwithstanding any of
the provisions of this Agreement or of the Rights to the contrary, the Company
may, at its option, issue new Rights Certificates evidencing Rights in such form
as may be approved by its Board of Directors to reflect any adjustment or change
in the Purchase Price and the number or kind or class of shares or other
securities or property purchasable under the Rights Certificates made in
accordance with the provisions of this Agreement.  In addition, in connection
with the issuance or sale of shares of Common Stock following the Distribution
Date and prior to the redemption or expiration of the Rights, the Company shall,
with respect to shares of Common Stock so issued or sold pursuant to the
exercise of stock options or under any employee plan or arrangement, granted or
awarded prior to the Distribution Date, or upon the exercise, conversion or
exchange of securities hereinafter issued by the Company prior to the
Distribution Date, issue Rights Certificates representing an appropriate number
of Rights in connection with such issuance or sale; provided, however, that (i)
no such Rights Certificate shall be issued if, and to the extent that, the
Company shall be advised by counsel that such issuance would create a
significant risk of material adverse tax consequences to the Company or the
Person to whom such Rights Certificate would be issued, and (ii) no such Rights
Certificate shall be issued if, and to the extent that, appropriate adjustment
shall otherwise have been made in lieu of the issuance thereof.

     Section 23.  Redemption and Termination.  (a)  The Board of Directors of
the Company may, at its option, at any time prior to the earlier of (i) the
Close of Business on the tenth day following the Stock Acquisition Date (or, if
the Stock Acquisition Date shall have occurred prior to the Record Date, the
Close of Business on the tenth day following the Record Date), or (ii) the Final
Expiration Date, redeem all but not less than all of the then outstanding Rights
at a redemption price of $.01 per Right, as such amount may be appropriately
adjusted to reflect any share split, share dividend or similar transaction
occurring after the date hereof (such redemption price being hereinafter
referred to as the "Redemption Price").  Notwithstanding anything contained in
this Agreement to the contrary, the Rights shall not be exercisable after the
first occurrence of a Section 11(a)(ii) Event until such time as the Company's
right of redemption hereunder has expired.  The Company may, at its option, pay
the Redemption Price in cash, shares of Common Stock (based on the "current
market price", as defined in Section 11(d), of the Common Stock at the time of
redemption) or any other form of consideration deemed appropriate by the Board
of Directors.  The redemption of the Rights by the Board of Directors may be
made effective at such time, on such basis and with such conditions as the Board
of Directors in its sole discretion may establish.

     (b)  Immediately upon the action of the Board of Directors of the Company
ordering the redemption of the Rights, evidence of which shall have been filed
with the Rights Agent and without any further action and without any notice, the
right to exercise the Rights will terminate and the only right thereafter of the
holders of Rights shall be to receive the Redemption Price for each Right so
held.  Promptly after the action of the Board of Directors ordering the
redemption of the Rights, the Company shall give notice of such redemption to
the Rights Agent and the holders of the then outstanding Rights by mailing such
notice to all such holders at each holder's last address as it appears upon the
registry books of the Rights Agent or, prior to the Distribution

                                      -27-
<PAGE>
 
Date, on the registry books of the transfer agent for the Common Stock. Any
notice which is mailed in the manner herein provided shall be deemed given,
whether or not the holder receives the notice. Each such notice of redemption
will state the method by which the payment of the Redemption Price will be made.

          (c)  Notwithstanding the provisions of Section 23(a), in the event
that a majority of the Board of Directors is elected by shareholder action by
written consent, or is comprised of persons elected at a meeting of shareholders
who were not nominated by the Board of Directors in office immediately prior to
such meeting, then (i) for a period of one hundred eighty days (180) days
following the effectiveness of such election (the "180 Day Period"), the Rights
may not be redeemed and (ii) after such 180 Day Period, the Rights may not be
redeemed unless (A) the Board of Directors has one or more directors (the
"Disinterested Director(s)") who are not officers or employees of the Company
and are not Affiliates of any Person that has in the last two years publicly
stated an intent to acquire all or a majority of the common equity interests in
the Company or a majority in value of the Company's assets (whether by purchase
of securities, assets, merger or otherwise) and (B) the redemption of the Rights
is approved by a majority of the Disinterested Director(s).

     Section 24.  Exchange.  (a) 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))
for shares of Common Stock at an exchange ratio of one share of Common Stock per
Right, appropriately adjusted to reflect any stock split, stock dividend or
similar transaction occurring after the date hereof (such exchange ratio being
hereinafter referred to as the "Exchange Ratio").  Notwithstanding the
foregoing, the Board of Directors shall not be empowered to effect such exchange
at any time after any Person (other than the Company, any Subsidiary of the
Company, any employee benefit plan of the Company or of any  Subsidiary of the
Company, or any Person organized, appointed or established by the Company for or
pursuant to the terms of any such plan), together with all Affiliates and
Associates of such Person, becomes the Beneficial Owner of fifty percent (50%)
or more of the Common Stock then outstanding.

     (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 equal to the
number of such Rights held by such holder multiplied by the Exchange Ratio.  The
Company shall promptly give public notice of any exchange; provided, however,
that the failure to give, or any defect in, such notice shall not affect the
validity of such exchange.  The Company promptly shall mail a notice of any such
exchange to all of the holders of such Rights at their last addresses as they
appear upon the registry books of the Rights Agent.  Any notice which is mailed
in the manner herein provided shall be deemed given, whether or not the holder
receives the notice.  Each such notice of exchange will state the method by
which the exchange of the

                                      -28-
<PAGE>
 
Common Stock for Rights will be effected and, in the event of any partial
exchange, the number of Rights which will be exchanged. Any partial exchange
will 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)) held by each holder
of Rights.

     (c)  In any exchange pursuant to this Section 24, the Company, at its
option, may substitute common share equivalents (as such term is defined in
Section 11(a)(iii)) for some or all of the shares of Common Stock exchangeable
for Rights.

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

     (e)  The Company shall not be required to issue fractions of shares of
Common Stock or to distribute certificates which evidence fractional shares of
Common Stock.  In lieu of such fractional shares of Common Stock, there shall be
paid to the registered holders of the Rights Certificates with regard to which
such fractional shares of Common Stock would otherwise be issuable, an amount in
cash equal to the same fraction of the current market value of a whole share of
Common Stock.  For the purposes of this subsection (e), the current market value
of a whole share of Common Stock shall be the closing price of a share of Common
Stock (as determined pursuant to Section 11(d)) 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 Common Stock or to make any
other distribution to the holders of Common Stock (other than a regular
quarterly cash dividend out of earnings or retained earnings of the Company), or
(ii) to offer to the holders of Common Stock rights or warrants to subscribe for
or to purchase any additional shares of Common Stock or stock of any class or
any other securities, rights or options, or (iii) to effect any reclassification
of its Common Stock (other than a reclassification involving only the
subdivision of outstanding Common Stock), or (iv) to effect any consolidation or
merger into or with any other Person (other than a Subsidiary of the Company in
a transaction which complies with Section 11(o)), or to effect any sale or other
transfer (or to permit one or more of its Subsidiaries to effect any sale or
other transfer), in one transaction or a series of related transactions, of more
than 50% of the assets or earning power of the Company and its Subsidiaries
(taken as a whole) to any other Person or Persons (other than the Company and/or
any of its Subsidiaries in one or more transactions each of which complies with
Section 11(o)), or (v) to effect the liquidation, dissolution or winding up of
the Company, then, in each such case, the Company shall give to each holder of a
Rights Certificate, to the extent feasible and in accordance with Section 26, 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

                                      -29-
<PAGE>
 
is to take place and the date of participation therein by the holders of the
shares of Common Stock, if any such date is to be fixed, and such notice shall
be so given in the case of any action covered by clause (i) or (ii) above at
least twenty (20) days prior to the record date for determining holders of the
Common 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, whichever shall be the earlier.

     (b)  In case the event set forth in Section 11(a)(ii) shall occur, then the
Company shall as soon as practicable thereafter give to each holder of a Rights
Certificate, to the extent feasible and in accordance with Section 26, 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).

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

          Unicom Corporation
          37th Floor, 10 South Dearborn Street
          Post Office Box A-3005
          Chicago, Illinois  60690-3005
          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 Rights
Certificate to or on the Rights Agent shall be sufficiently given or made if
sent by first-class mail, postage prepaid, addressed (until another address is
filed in writing with the Company) as follows:

          First Chicago Trust Company of New York
          Suite 4660
          525 Washington Boulevard
          Jersey City, New Jersey 07310
          Attention:  Tenders and Exchanges Administration

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

     Section 27.  Supplements and Amendments.  The Company may from time to
time supplement or amend this Agreement without the approval of any holders of
Rights Certificates in
                
                                     -30-
<PAGE>
 
order to cure any ambiguity, to correct or supplement any provision contained
herein which may be defective or inconsistent with any other provision herein,
or to make any other provisions with respect to the Rights which the Company may
deem necessary or desirable, any such supplement or amendment to be evidenced by
a writing signed by the Company and the Rights Agent; provided, however, that
from and after such time as any Person becomes an Acquiring Person, this
Agreement shall not be amended in any manner which would adversely affect the
interests of the holders of Rights.  Prior to the Distribution Date, the
interest of the holders of Rights shall be deemed coincident with the interests
of the holders of Common Stock.  Without limiting the foregoing, the Company may
at any time prior to such time as any Person becomes an Acquiring Person amend
this Agreement to lower the thresholds set forth in Sections 1(a) and 3(a) to a
percentage that (subject to exceptions for specified Persons or groups excepted
from the definition of "Acquiring Person") is not less than the greater of (i)
the sum of .001% and the largest percentage of the outstanding shares of Common
Stock then known by the Company to be beneficially owned by any Person (other
than the Company, any Subsidiary of the Company, any employee benefit plan of
the Company or of any Subsidiary of the Company, any Person organized, appointed
or established by the Company for or pursuant to the terms of any such plan or,
to the extent excepted from the definition of "Acquiring Person", other
specified persons or groups) and (ii) 10.0%.

     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.  Determination and Actions by the Board of Directors, etc.
For all purposes of this Agreement, any calculation of the number of shares of
Common Stock outstanding at any particular time, including for purposes of
determining the particular percentage of such outstanding shares of Common Stock
of which any Person is the Beneficial Owner, shall be made in accordance with
the last sentence of Rule 13d-3(d)(l)(i) of the General Rules and Regulations
under the Exchange Act.  The Board of Directors of the Company shall have the
exclusive power and authority to administer this Agreement and to exercise all
rights and powers specifically granted to the Board of Directors of the Company
or to the Company, or as may be necessary or advisable in the administration of
this Agreement, including, without limitation, the right and power to (i)
interpret the provisions of this Agreement, and (ii) make all determinations
deemed necessary or advisable for the administration of this Agreement
(including, but not limited to, a determination to redeem or not redeem the
Rights or to amend this Agreement).  All such actions, calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
of Directors of the Company 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 to any
liability to the holders of the Rights.

     Section 30.  Benefits of this Agreement.  Nothing in this Agreement shall
be construed to give to any Person other than the Company, the Rights Agent and
the registered holders of the
              
                                     -31-
<PAGE>
 
Rights Certificates (and, prior to the Distribution Date, registered holders of
the Common Stock) any legal or equitable right, remedy or claim under this
Agreement; but this Agreement shall be for the sole and exclusive benefit of the
Company, the Rights Agent and the registered holders of the Rights Certificates
(and, prior to the Distribution Date, registered holders of the Common Stock).

      Section 31.  Severability.  If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated;
provided, however, that notwithstanding anything in this Agreement to the
contrary, if any such term, provision, covenant or restriction is held by such
court or authority to be invalid, void or unenforceable and the Board of
Directors of the Company determines in its good faith judgment that severing the
invalid language from this Agreement would adversely affect the purpose or
effect of this Agreement, the right of redemption set forth in Section 23 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 Rights
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of Illinois and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts made
and to be performed entirely within such State.

      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.
                     
                                     -32-
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and their respective corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.


Attest:                             UNICOM CORPORATION


By:  /s/ David A. Scholz            By:  /s/ John C. Bukovski
     -----------------------             ----------------------------
     Name:  David A. Scholz              Name:  John C. Bukovski
     Title: Secretary                    Title: Senior Vice President





Attest:                             FIRST CHICAGO TRUST COMPANY
                                    OF NEW YORK


By:  /s/ Gerard O' Leary            By:  /s/ Joanne Gorostiola
     ---------------------------         ---------------------------
     Name: Gerard O' Leary               Name:  Joanne Gorostiola
     Title: Vice President               Title: Assistant Vice President
 
 
                                     -33-
<PAGE>
 
                                                                       Exhibit A
                                                                       ---------



                         [Form of Rights Certificate]


Certificate No. R-                                             __________ Rights


NOT EXERCISABLE AFTER FEBRUARY 2, 2008 OR EARLIER IF REDEEMED OR EXCHANGED BY
THE COMPANY.  THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE
COMPANY, AT $.01 PER RIGHT, AND TO EXCHANGE ON THE TERMS SET FORTH IN THE RIGHTS
AGREEMENT.  UNDER CERTAIN CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY AN
ACQUIRING PERSON (AS SUCH TERM IS DEFINED IN THE RIGHTS AGREEMENT) AND ANY
SUBSEQUENT HOLDER OF SUCH RIGHTS MAY BECOME NULL AND VOID.  [THE RIGHTS
REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR WERE BENEFICIALLY OWNED BY A
PERSON WHO WAS OR BECAME AN ACQUIRING PERSON OR AN AFFILIATE OR ASSOCIATE OF AN
ACQUIRING PERSON (AS SUCH TERMS ARE DEFINED IN THE RIGHTS AGREEMENT).
ACCORDINGLY, THIS RIGHTS CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY
BECOME NULL AND VOID IN THE CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF SUCH
AGREEMENT.]








                                      A-1
<PAGE>
 
                              Rights Certificate

                              UNICOM CORPORATION


          This certifies that ____________________________, or registered
assigns, is the registered owner of the number of Rights set forth above, each
of which entitles the owner thereof, subject to the terms, provisions and
conditions of the Rights Agreement, dated as of February 2 1998 (the "Rights
Agreement"), between Unicom Corporation, an Illinois corporation (the
"Company"), and First Chicago Trust Company of New York, a New York corporation
(the "Rights Agent"), to purchase from the Company at any time prior to 5:00
P.M. (Illinois time) on February 2, 2008 at the office or offices of the Rights
Agent designated for such purpose, or its successors as Rights Agent, one-
thousandth of one fully paid, nonassessable share of Common Stock, without par
value (the "Common Stock"), of the Company, at a purchase price (the "Purchase
Price") of $100 per whole share of Common Stock (equivalent to $.10 for each
one-thousandth of one share of Common Stock), upon presentation and surrender of
this Rights Certificate with the Form of Election to Purchase and related
Certificate duly executed.  The number of Rights evidenced by this Rights
Certificate (and the number of shares which may be purchased upon exercise
thereof) set forth above, and the Purchase Price per share set forth above, are
the number and Purchase Price as of February 2, 1998, based on the Common Stock
as constituted at such date.

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

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

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


                                      A-2                     
<PAGE>
 
the principal executive offices of the Company and the above-mentioned offices
of the Rights Agent and are available upon written request.

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

          Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Certificate may, in each case at the option of the Company, be
(i) redeemed by the Company at its option at a redemption price of $.01 per
Right or (ii) exchanged in whole or in part for shares of Common Stock or other
securities of the Company.  Immediately upon the action of the Board of
Directors of the Company authorizing redemption, the Rights will terminate and
the only right of the holders of Rights will be to receive the redemption price.

          No fractional shares of Common Stock will be issued upon the exercise
of any Right or Rights evidenced hereby, but in lieu thereof a cash payment will
be made, as provided in the Rights Agreement.

          No holder of this Rights Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of shares of Common
Stock or of any other securities of the Company which may at any time be
issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof, as such, any
of the rights of a 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 the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Rights
Certificate shall have been exercised as provided in the Rights Agreement.

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


                                      A-3
<PAGE>
 
     WITNESS the facsimile signature of the proper officers of the Company and
its corporate seal.


Dated as of __________, ____


ATTEST:                                UNICOM CORPORATION



_____________________________          By: _______________________________
         Secretary                         Name:
                                           Title:


Countersigned:


[                              ]



By:  ______________________________
     Authorized Signature




                                      A-4        
<PAGE>
 
                 [Form of Reverse Side of Rights Certificate]

                              FORM OF ASSIGNMENT
                              ------------------

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



FOR VALUE RECEIVED ____________________________________________________________
hereby sells, assigns and transfers unto_______________________________________
_______________________________________________________________________________
                 (Please print name and address of transferee)

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

Dated: ___________________, ____


                                        _______________________________________
                                        Signature

Signature Guaranteed:


                                      A-5
<PAGE>
 
                                  Certificate
                                  -----------


     The undersigned hereby certifies by checking the appropriate boxes that:

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

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

Dated: _____________, ____           __________________________________________
                                     Signature

Signature Guaranteed:


                                     NOTICE
                                     ------

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


                                      A-6
<PAGE>
 
                          FORM OF ELECTION TO PURCHASE
                          ----------------------------
                      (To be executed if holder desires to
                       exercise Rights represented by the
                              Rights Certificate.)


TO:  UNICOM CORPORATION

     The undersigned hereby irrevocably elects to exercise ______ Rights
represented by this Rights Certificate to purchase the shares of Common 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 (or other securities) be
issued in the name of and delivered to:

Please insert social security
or other identifying number

______________________________________________________________________________
                        (Please print name and address)
______________________________________________________________________________


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

Please insert social security
or other identifying number

______________________________________________________________________________
                        (Please print name and address)
______________________________________________________________________________


Dated:  _____________, ____

                         __________________________________________
                                        Signature

Signature Guaranteed:

                                      A-7
<PAGE>
 
                                  Certificate
                                  -----------

     The undersigned hereby certifies by checking the appropriate boxes that:

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

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

Dated: ______________, ____  ________________________________________________
                                              Signature

Signature Guaranteed:


                                     NOTICE
                                     ------

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

                                      A-8
<PAGE>
 
                                                                       Exhibit B
                                                                       ---------



                   SUMMARY OF RIGHTS TO PURCHASE COMMON STOCK
                   ------------------------------------------


     On February 2, 1998, the Board of Directors of Unicom Corporation (the
"Company") declared a dividend distribution of one Right for each outstanding
share of the Company's common stock, without par value ("Common Stock"), to
shareholders of record at the close of business on February 13, 1998. Each Right
entitles the registered holder to purchase from the Company one-thousandth of
one share of Common Stock at a purchase price (the "Purchase Price") of $100 per
whole share of Common Stock (equivalent to $.10 for each one-thousandth of one
share of Common Stock), subject to adjustment. The description and terms of the
Rights are set forth in a Rights Agreement (the "Rights Agreement") dated as of
February 2, 1998 between the Company and First Chicago Trust Company of New
York, as Rights Agent.

     Initially, the Rights will be attached to all Common Stock certificates
representing shares then outstanding, and no separate Rights certificates will
be distributed. The Rights will separate from the Common Stock and the
Distribution Date will occur upon the earlier of (i) 10 days following a public
announcement that a person or group of affiliated or associated persons (an
"Acquiring Person") has acquired, or obtained the right to acquire, beneficial
ownership of 15% or more of the outstanding shares of Common Stock (the "Stock
Acquisition Date"), or (ii) 10 business days (or such later date as may be
determined by action of the Board of Directors prior to such time as any person
or group becomes an Acquiring Person) following the commencement of a tender
offer or exchange offer, which, if consummated, would result in a person or
group becoming an Acquiring Person.

     Until the Distribution Date, (i) the Rights will be evidenced by the Common
Stock certificates and will be transferred with and only with such Common Stock
certificates, (ii) new Common Stock certificates issued after February 13, 1998
will contain a notation incorporating the Rights Agreement by reference and
(iii) the surrender for transfer of any certificates for Common Stock
outstanding will also constitute the transfer of the Rights associated with the
Common Stock represented by such certificate.

     The Rights are not exercisable until the Distribution Date and will expire
at the close of business on February 2, 2008, unless earlier redeemed by the
Company as described below.

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


                                      B-1
<PAGE>
 
     In the event that, at any time following the Distribution Date, a person or
group becomes an Acquiring Person, each holder of a Right will thereafter have
the right to receive, upon exercise, Common Stock at a 50% discount from the
then current market price. If an insufficient number of shares of Common Stock
is authorized for issuance, then the Board would be required to substitute cash,
property or other securities of the Company for the Common Stock.
Notwithstanding any of the foregoing, following the occurrence of the event set
forth in this paragraph, all rights that are, or (under certain circumstances
specified in the Rights Agreement) were, beneficially owned by any Acquiring
Person will be null and void. However, Rights are not exercisable following the
occurrence of the event set forth in this paragraph until such time as the
Rights are no longer redeemable by the Company as set forth below.

     For example, at an exercise price of $100 per Right, each Right not owned
by an Acquiring Person (or by certain related parties) following an event set
forth in the preceding paragraph would entitle its holder to purchase $200 worth
of Common Stock (or other consideration, as noted above) at a purchase price per
share equal to 50% of the then current market price of a share of Common Stock.
Assuming that the Common Stock had a per share value of $50 at such time, the
holder of each valid Right would be entitled to purchase four shares of Common
Stock for $100.

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

     The purchase price payable, and the number of shares of Common 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 stock
dividend on, or a subdivision, combination or reclassification of, the shares of
Common Stock, (ii) if holders of the Common Stock are granted certain rights,
options or warrants to subscribe for Common Stock or convertible securities at
less than the current market price of the Common Stock, or (iii) upon the
distribution to holders of the Common 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 Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price. No fractional shares of Common Stock will be issued. In lieu thereof,
there shall be paid to registered holders of Rights Certificates an amount in
cash based on the market price of the shares of Common Stock on the last trading
day prior to the date of exercise.


                                      B-2
<PAGE>
 
     At any time after any person or group becomes an Acquiring Person and prior
to the acquisition by such person or group of 50% or more of the outstanding
shares of Common Stock, the Board of Directors of the Company may exchange the
Rights (other than Rights owned by such person or group which will have become
void), in whole or in part, at an exchange ratio of one share of Common Stock
(or other equity securities of the Company having equivalent rights, preferences
and privileges), per Right (subject to adjustment).

     In general, the Company may redeem the Rights in whole, but not in part, at
a price of $.01 per Right (subject to adjustment and payable in cash, Common
Stock or other consideration deemed appropriate by the Board of Directors) at
any time until ten days following the Stock Acquisition Date. Immediately upon
the action of the Board of Directors authorizing any redemption, the Rights will
terminate and the only right of the holders of Rights will be to receive the
redemption price. Notwithstanding the foregoing, in the event that a majority of
the Board of Directors is elected by shareholder action by written consent, or
is comprised of persons elected at a meeting of shareholders who were not
nominated by the Board of Directors in office immediately prior to such meeting,
then (i) for a period of one hundred eighty days (180) days following the
effectiveness of such election (the "180 Day Period"), the Rights may not be
redeemed and (ii) after such 180 Day Period, the Rights may not be redeemed
unless (A) the Board of Directors has one or more directors (the "Disinterested
Director(s)") who are not officers or employees of the Company and are not
Affiliates of any Person that has in the last two years publicly stated an
intent to acquire all or a majority of the common equity interests in the
Company or a majority in value of the Company's assets (whether by purchase of
securities, assets, merger or otherwise) and (B) the redemption of the Rights is
approved by a majority of the Disinterested Director(s).

     Until a Right is exercised, the holder thereof, as such, will have no
rights as a shareholder of the Company, including, without limitation, the right
to vote or to receive dividends. While the distribution of the Rights will not
result in the recognition of taxable income by shareholders or the Company,
shareholders may, depending upon the circumstances, recognize taxable income
after a Triggering Event.

     The terms of the Rights may be amended by the Board of Directors of the
Company without the consent of the holders of the Rights, including an amendment
to lower certain thresholds described above to not less than the greater of (i)
the sum of .001% and the largest percentage of the outstanding shares of Common
Stock then known to the Company to be beneficially owned by any person or group
of affiliated or associated persons and (ii) 10%, except that from and after
such time as any person or group of affiliated or associated persons becomes an
Acquiring Person no such amendment may adversely affect the interests of the
holders of the Rights.

     A copy of the Rights Agreement is available free of charge from the
Company. This 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.


                                      B-3


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission