PERINI CORP
8-A12B/A, 1997-01-29
GENERAL BLDG CONTRACTORS - NONRESIDENTIAL BLDGS
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                   FORM 8-A/A

              AMENDMENT NO. 1 TO REGISTRATION STATEMENT ON FORM 8-A
                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                     PURSUANT TO SECTION 12(b) OR (g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


                               Perini Corporation
             (Exact name of registrant as specified in its charter)


              Massachusetts                             04-1717070
(State of incorporation or organization)   (I.R.S. Employer Identification No.)


     73 Mt. Wayte Avenue, Framingham, Massachusetts              01701
     ----------------------------------------------            ----------
       (Address of principal executive offices)                (Zip Code)

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

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


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

None.

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

                                                   Name of Exchange on
    Title of Class to be so Registered      which Class is to be Registered
    ----------------------------------      -------------------------------

     Preferred Stock Purchase Rights            American Stock Exchange




                                        1

<PAGE>



                 INFORMATION REQUIRED IN REGISTRATION STATEMENT


Item 1.  Description of Registrant's Securities to be Registered

         On January 17, 1997, the Board of Directors of Perini  Corporation (the
"Company")   amended  the  terms  of  its  Preferred   Stock  Purchase   Rights.
Accordingly,  the response to Item 1 of the Company's  Registration Statement on
Form 8-A,  dated  September 26, 1988, is hereby  amended and restated to read as
follows:

         On  September  23, 1988,  the Board of Directors of Perini  Corporation
(the "Company") declared a dividend distribution of one Preferred Stock Purchase
Right for each outstanding  share of Common Stock of the Company to stockholders
of record at the close of business on October 6, 1988.  Each Right  entitles the
registered  holder  to  purchase  from  the  Company  a unit  consisting  of one
one-hundredth of a share (a "Unit") of Series A Junior Participating  Cumulative
Preferred  Stock, par value $1.00 per share (the "Preferred  Stock"),  at a cash
Exercise Price of $100.00 per Unit,  subject to adjustment.  The description and
terms of the Rights are set forth in a Shareholder  Rights Agreement dated as of
September  23,  1988,  as amended and  restated as of May 17,  1990,  as further
amended  and  restated  as of January  17,  1997,  between the Company and State
Street Bank and Trust Company, as Rights Agent.

         Initially,  the Rights will not be exercisable  and will be attached to
all outstanding  shares of Common Stock. No separate Right  Certificates will be
distributed  until the  Distribution  Date.  The Rights will  separate  from the
Common  Stock and the  Distribution  Date will occur upon the earliest of (i) 10
days  following a public  announcement  that a person or group of  affiliated or
associated  persons  (other than the Company and certain of its  affiliates  and
other  exempted  persons)  (an  "Acquiring   Person")  has  acquired  beneficial
ownership of 10% or more of the outstanding  shares of Common Stock (the date of
said announcement  being referred to as the "Stock Acquisition  Date"),  (ii) 10
business days  following the  commencement  of a tender offer or exchange  offer
that would result in a person or group becoming an Acquiring Person or (iii) the
declaration by the Board of Directors that any person is an "Adverse Person."

         For the purpose of determining  whether PB Capital Partners,  L.P. ("PB
Capital  Partners"),  The Union Labor Life  Insurance  Company  ("ULLICO"),  The
Common Fund for Non-Profit  Organizations ("The Common Fund"), Richard C. Blum &
Associates,  L.P. ("RCBA"), Ronald N. Tutor ("Tutor"),  Tutor-Saliba Corporation
("Tutor-Saliba") or any of their respective  affiliated or associated persons is
an Acquiring Person, none of such persons will be deemed to beneficially own (i)
any shares of Series B  Cumulative  Convertible  Preferred  Stock (the "Series B
Preferred  Stock")  of the  Company  issued or  issuable  pursuant  to the Stock
Purchase and Sale  Agreement by and among the Company,  PB Capital  Partners and
RCBA,  dated as of July 24,  1996,  as amended  (the  "Stock  Purchase  and Sale
Agreement"),  including shares issued or issuable as payment-in-kind  dividends,
(ii) any shares of the Common Stock issued or issuable  upon the  conversion  of
such shares of Series B Preferred Stock, (iii) any shares of Common Stock issued
or issuable pursuant to the

                                        2

<PAGE>



Participation Agreement by and between the Company and PB Capital Partners dated
as of November 4, 1996, or (iv) any shares of Common Stock issued or issuable to
Tutor upon  exercise of a certain  stock option  granted to Tutor on January 17,
1997.

         For the purpose of  determining  whether a Stock  Acquisition  Date has
occurred,   PB  Capital  Partners,   ULLICO,   The  Common  Fund,  RCBA,  Tutor,
Tutor-Saliba and their  respective  affiliated and associated  persons,  will be
deemed not to beneficially own (i) any shares of Series B Preferred Stock of the
Company issued or issuable  pursuant to the Stock  Purchase and Sale  Agreement,
including  shares issued as  payment-in-kind  dividends,  (ii) any shares of the
Common Stock issued or issuable  upon the  conversion of such shares of Series B
Preferred Stock, (iii) any shares of Common Stock issued or issuable pursuant to
the  Participation  Agreement by and between the Company and PB Capital Partners
dated as of  November  4,  1996,  or (iv) any shares of Common  Stock  issued or
issuable to Tutor upon  exercise of a certain  stock option  granted to Tutor on
January 17, 1997.

         The Board of Directors  could declare a person to be an Adverse  Person
after  (1) a  determination  that  such  person,  alone  or  together  with  its
affiliates and associates, has become the beneficial owner of 10% or more of the
outstanding  shares of  Common  Stock  and (2) a  determination  by the Board of
Directors,   after  reasonable   inquiry  and   investigation,   including  such
consultation,   if  any,  with  such  persons  as  such  directors   shall  deem
appropriate,  that (a) such  beneficial  ownership by such person is intended to
cause, is reasonably likely to cause or will cause the Company to repurchase the
Common  Stock  beneficially  owned by such  person or to cause  pressure  on the
Company to take  action or enter into a  transaction  or series of  transactions
which  would  provide  such  person  with   short-term   financial   gain  under
circumstances  where the Board of Directors  determines  that the best long-term
interests of the Company and its stockholders,  but for the actions and possible
actions of such  person,  would not be served by taking  such action or entering
into  such  transaction  or  series  of  transactions  at that  time or (b) such
beneficial  ownership  is  causing or is  reasonably  likely to cause a material
adverse impact (including,  but not limited to, impairment of relationships with
customers or  impairment of the  Company's  ability to maintain its  competitive
position) on the business or prospects of the Company;  provided,  however, that
the Board of  Directors of the Company may not declare a person to be an Adverse
Person if, prior to the time that such person acquired 10% or more of the shares
of Common Stock then outstanding, such person provided to the Board of Directors
in writing a statement of such  person's  purpose and  intentions  in connection
with  the  proposed  acquisition  of  Common  Stock,  together  with  any  other
information  reasonably requested of such person by the Board of Directors,  and
the Board of Directors,  based on such statement and such reasonable inquiry and
investigation,  including  such  consultation,  if any, with such persons as the
directors shall deem appropriate,  determines to notify and notifies such person
in writing that it will not declare such person to be Adverse  Person;  provided
further,  that the Board of Directors  may  expressly  condition in any manner a
determination  not to declare a person an Adverse  Person on such  conditions as
the Board of Directors may select,  including  without  limitation such person's
not acquiring more than a specified  amount of stock and/or on such person's not
taking actions inconsistent

                                        3

<PAGE>



with the  purposes  and  intentions  disclosed  by such person in the  statement
provided  to the  Board  of  Directors.  No  delay or  failure  by the  Board of
Directors to declare a person to be an Adverse  Person shall in any way waive or
otherwise  affect the power of the Board of Directors  subsequently to declare a
person to be an Adverse Person.  In the event that the Board of Directors should
at any time determine,  upon  reasonable  inquiry and  investigation,  including
consultation  with such persons as the directors  shall deem  appropriate,  that
such person has not met or complied with any condition specified by the Board of
Directors,  the Board of Directors may at any time thereafter declare the person
to be an Adverse Person.

         The Board of Directors may not declare any of the following entities an
Adverse Person: PB Capital Partners,  ULLICO,  The Common Fund, RCBA, Tutor, and
Tutor-Saliba,  and their respective  affiliated persons.  Any person that, on or
after January 17, 1997, was a limited  partner of PB Capital  Partners,  will be
deemed to be an  affiliated  person  of PB  Capital  Partners  for so long as PB
Capital Partners continues in existence and such person beneficially owns Common
Stock solely by virtue of its  ownership  of an interest in PB Capital  Partners
and/or of Common Stock beneficially owned by it prior to January 17, 1997.

         Until the Distribution Date (or earlier redemption or expiration of the
Rights),  (a) the Rights will be evidenced by the Common Stock  certificates and
will be transferred with and only with such Common Stock  certificates,  (b) new
Common Stock  certificates  issued after October 6, 1988 will contain a notation
incorporating  the  Shareholder  Rights  Agreement  by  reference,  and  (c) the
surrender for transfer of any certificates for Common Stock will also constitute
the transfer of the Rights  associated with the Common Stock represented by such
certificate.

         The Rights are not  exercisable  until the  Distribution  Date and will
expire at the close of business on January 21, 2007, unless previously  redeemed
by the Company as described below.

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

         In the  event  that a Stock  Acquisition  Date  occurs  or the Board of
Directors  determines that a person is an Adverse Person,  proper provision will
be made so that each holder of a Right will thereafter have the right to receive
upon  exercise that number of Units of Preferred  Stock of the Company  having a
market  value of two times the  exercise  price of the Right  (such  right being
referred  to as the  "Subscription  Right").  In the  event  that,  at any  time
following the Stock Acquisition Date, (i) the Company is acquired in a merger or
other  business  combination  transaction  or (ii) 50% or more of the  Company's
assets or earning power is sold,  each holder of a Right shall  thereafter  have
the right to receive, upon exercise, common stock of the

                                        4

<PAGE>



acquiring company having a market value equal to two times the exercise price of
the Right (such right being referred to as the "Merger Right").  The holder of a
Right will  continue  to have the Merger  Right  whether or not such  holder has
exercised the Subscription  Right. Rights that are or were beneficially owned by
an  Acquiring  Person or an  Adverse  Person may  (under  certain  circumstances
specified in the Shareholder Rights Agreement) become null and void.

         At any time  after a Stock  Acquisition  Date  occurs  or the  Board of
Directors  determines that a person is an Adverse Person, the Board of Directors
may,  at its  option,  exchange  all or any  part of the  then  outstanding  and
exercisable  Rights for shares of Common Stock or Units of Preferred Stock at an
exchange  ratio of one share of Common Stock or one Unit of Preferred  Stock per
Right.

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

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

         Any of  the  provisions  of the  Shareholder  Rights  Agreement  may be
amended  by the  Board of  Directors  of the  Company  at any time  prior to the
Distribution  Date. From and after the Distribution Date, the Board of Directors
of the  Company  may,  subject to certain  limitations  specified  in the Rights
Agreement,  amend  the  Rights  Agreement  to  cure  any  ambiguity,  defect  or
inconsistency,  to  shorten  or  lengthen  any  time  period  under  the  Rights
Agreement,  or to make other changes that do not adversely  affect the interests
of the Rights  holders  (excluding the interests of Acquiring  Persons,  Adverse
Persons or their Affiliates or Associates).

         The Rights may be  redeemed  in whole,  but not in part,  at a price of
$0.02 per Right  (payable in cash,  Common Stock or other  consideration  deemed
appropriate  by the Board of  Directors)  by the Board of  Directors at any time
prior to the date on which a person is  declared  to be an Adverse  Person,  the
tenth day after the Stock  Acquisition Date or the occurrence of an event giving
rise to the Merger Right. Immediately upon the action of the

                                        5

<PAGE>



Board of Directors ordering  redemption of the Rights, the Rights will terminate
and  thereafter  the only right of the  holders of Rights will be to receive the
redemption price.

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

         A copy of the  Shareholder  Rights  Agreement dated as of September 23,
1988,  as amended  and  restated  as of May 17,  1990,  as further  amended  and
restated as of January 17, 1997, has been filed with the Securities and Exchange
Commission as an Exhibit to a  Registration  Statement on Form 8-A/A.  A copy of
the Shareholder  Rights  Agreement is available free of charge from the Company.
This  summary  description  of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Shareholder Rights Agreement.

Item 2.  Exhibits

         4.4      Shareholder Rights Agreement,  dated as of September 23, 1988,
                  as amended  and  restated as of May 17,  1990,  as amended and
                  restated as of January 17, 1997,  between  Perini  Corporation
                  and State Street Bank and Trust Company, as Rights Agent.

                                        6

<PAGE>



                                    SIGNATURE

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

                                   Perini Corporation

Date: January 29, 1997             By:   /s/ David B. Perini
                                         -------------------
                                         David B. Perini
                                         Chairman and Chief Executive Officer


                                        7

<PAGE>



                                  EXHIBIT INDEX


Exhibit
Number            Description
- ------            -----------

4.4               Shareholder Rights Agreement,  dated as of September 23, 1988,
                  as amended  and  restated as of May 17,  1990,  as amended and
                  restated as of January 17, 1997,  between  Perini  Corporation
                  and State Street Bank and Trust Company, as Rights Agent.





                                        8



                               PERINI CORPORATION



                                       and



                       STATE STREET BANK AND TRUST COMPANY


                                 as Rights Agent




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




                          Shareholder Rights Agreement

                         Dated as of September 23, 1988

                             as amended and restated

                               as of May 17, 1990

                         as further amended and restated

                             as of January 17, 1997







<PAGE>


<TABLE>

                                Table of Contents

<S>               <C>                                                                                          <C>   
                                                                                                               Page

Section 1.        Certain Definitions.............................................................................2

Section 2.        Appointment of Rights Agent.....................................................................6

Section 3.        Issue of Right Certificates.....................................................................6

Section 4.        Form of Right Certificates......................................................................8

Section 5.        Countersignature and Registration...............................................................9

Section 6.        Transfer, Split Up, Combination and 
                  Exchange of Right Certificates; Mutilated,
                  Destroyed, Lost or Stolen Right Certificates...................................................10

Section 7.        Exercise of Rights; Exercise Price; Expiration Date of Rights..................................11

Section 8.        Cancellation and Destruction of Right Certificates.............................................13

Section 9.        Reservation and Availability of Preferred Stock................................................13

Section 10.       Preferred Stock Record Date....................................................................14

Section 11.       Adjustment of Exercise Price, Number and Kind of Shares or Number of Rights ...................14

Section 12.       Certificate of Adjusted Exercise Price or Number of Shares.....................................23

Section 13.       Consolidation, Merger or Sale or Transfer of Assets or Earning Power...........................23

Section 14.       Fractional Rights and Fractional Shares........................................................25

Section 15.       Rights of Action...............................................................................26

Section 16.       Agreement of Right Holders.....................................................................26

Section 17.       Right Certificate Holder Not Deemed a Shareholder..............................................27

Section 18.       Concerning the Rights Agent....................................................................27

Section 19.       Merger or Consolidation or Change of Name of Rights Agent......................................28

                                       (i)

<PAGE>




Section 20.       Duties of Rights Agent.........................................................................28

Section 21.       Change of Rights Agent.........................................................................31

Section 22.       Issuance of New Right Certificates.............................................................31

Section 23.       Redemption and Termination.....................................................................32

Section 24.       Exchange.......................................................................................33

Section 25.       Notice of Certain Events.......................................................................34

Section 26.       Notices........................................................................................34

Section 27.       Supplements and Amendments.....................................................................35

Section 28.       Successors.....................................................................................36

Section 29.       Determinations and Actions by the Board of Directors...........................................36

Section 30.       Benefits of this Agreement.....................................................................36

Section 31.       Severability...................................................................................37

Section 32.       Governing Law..................................................................................37

Section 33.       Counterparts...................................................................................37

Section 34.       Descriptive Headings...........................................................................37


                                      (ii)
</TABLE>

<PAGE>



                          SHAREHOLDER RIGHTS AGREEMENT


         Agreement,  dated as of September  23, 1988, as amended and restated as
of May 17, 1990, as further amended and restated as of January 17, 1997, between
Perini  Corporation,  a Massachusetts  corporation  (the  "Company"),  and State
Street Bank and Trust Company (the "Rights Agent").

                               W I T N E S S E T H

         WHEREAS,  on  September  23, 1988 the Board of Directors of the Company
authorized  and declared a dividend  distribution  of one Right (as  hereinafter
defined) for each outstanding  share of Common Stock, par value $1.00 per share,
of the Company (the "Common  Stock")  outstanding as of the close of business on
October 6, 1988 (the "Record Date"),  (other than shares of Common Stock held in
the Company's treasury on the Record Date), and contemplates the issuance of one
Right for each share of Common Stock of the Company issued  (whether  originally
issued or sold from the  Company's  treasury)  between  the Record  Date and the
earlier  of the  Distribution  Date and the  Expiration  Date (as such terms are
defined in Section 3 hereof),  each Right  initially  representing  the right to
purchase  one  one-hundredth  of  a  share  of  Series  A  Junior  Participating
Cumulative  Preferred  Stock  of the  Company  having  the  rights,  powers  and
preferences  set  forth  in  the  form  of  Certificate  of  Vote  of  Directors
Establishing a Series of a Class of Stock attached hereto as Exhibit A, upon the
terms and subject to the conditions hereinafter set forth (the "Rights");

         WHEREAS,  as a  condition  to  the  consummation  of  the  transactions
contemplated by the Stock Purchase and Sale Agreement dated July 24, 1996 by and
among the Company,  Richard C. Blum &  Associates,  L.P.,  a California  limited
partnership  ("RCBA")  and  PB  Capital  Partners,   L.P.,  a  Delaware  limited
partnership  ("PB Capital  Partners"),  as amended through November 8, 1996 (the
"Stock Purchase and Sale Agreement"), RCBA and PB Capital Partners have required
that the Company amend the  Shareholder  Rights  Agreement dated as of September
23, 1988,  as amended and restated as of May 17, 1990, as amended as of July 24,
1996, November 4, 1996 and December 13, 1996 (the "Rights Agreement"), to insure
the  continued  availability  to  the  Company  of  certain  tax  advantages  by
discouraging the further  acquisition of the Company's  capital stock by holders
of 5% or more of such stock and to exempt the proposed  investment by PB Capital
Partners from the provisions of the Rights Agreement;

         WHEREAS,  in  accordance  with the terms of the Rights  Agreement,  the
Company deems it advisable and in the best interests of its shareholders to make
certain further amendments to the Rights Agreement;

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
agreements  herein set forth, the parties hereby agree that the Rights Agreement
is hereby amended and restated as follows:


                                        1

<PAGE>



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

                  (a) "Acquiring  Person" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates (as such term is
hereinafter  defined) and Associates  (as such term is  hereinafter  defined) of
such Person, shall be the Beneficial Owner (as such term is hereinafter defined)
of the Triggering  Percentage (as hereinafter  defined) or more of the shares of
Common Stock then outstanding,  but shall not include (i) the Company,  (ii) any
Subsidiary  of the  Company  (as such term is  hereinafter  defined),  (iii) any
employee  benefit plan of the Company or any  Subsidiary of the Company (as such
term is hereinafter defined), (iv) any entity or Person holding shares of Common
Stock  organized,  appointed or established by the Company or any Subsidiary for
or pursuant to the terms of any such plan or (v) The Perini Memorial Foundation,
Inc.,  The Joseph  Perini  Memorial  Foundation,  or any of the  various  trusts
established  under the Wills of Louis R. Perini,  Sr., Joseph R. Perini,  Sr. or
Charles B.  Perini,  Sr. The Persons  described in clauses (i) through (v) above
are referred to herein as "Exempt Persons."  Notwithstanding  the foregoing,  no
Person shall become an  "Acquiring  Person" as the result of an  acquisition  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 the  Triggering  Percentage  or more of the Common  Stock of the Company then
outstanding;  provided,  however,  that if a Person shall become the  Beneficial
Owner of the  Triggering  Percentage  or more of the Common Stock of the Company
then  outstanding by reason of share  purchases by the Company and shall,  after
such  share  purchases  by the  Company,  become  the  Beneficial  Owner  of any
additional  shares of Common  Stock of the  Company,  then such Person  shall be
deemed to be an "Acquiring Person".  Notwithstanding  anything in this Agreement
to the  contrary,  solely  for the  purpose  of  determining  whether PB Capital
Partners, The Union Labor Life Insurance Company ("ULLICO"), The Common Fund for
Non-Profit  Organizations ("The Common Fund"),  RCBA, Ronald N. Tutor ("Tutor"),
Tutor-Saliba Corporation  ("Tutor-Saliba") or any of their respective Affiliates
or  Associates is an Acquiring  Person,  none of such persons shall be deemed to
beneficially  own (i) any shares of Series B  Cumulative  Convertible  Preferred
Stock  (the  "Series B  Preferred  Stock")  of the  Company  issued or  issuable
pursuant to the Stock Purchase and Sale  Agreement,  including  shares issued or
issuable  as  payment-in-kind  dividends,  (ii) any shares of the  Common  Stock
issued or  issuable  upon the  conversion  of such  shares of Series B Preferred
Stock,  (iii) any shares of Common  Stock  issued or  issuable  pursuant  to the
Participation Agreement by and between the Company and PB Capital Partners dated
as of November 4, 1996, or (iv) any shares of Common Stock issued or issuable to
Tutor upon  exercise of a certain  stock option  granted to Tutor on January 17,
1997.

                  (b) "Adverse  Person" shall mean any Person  declared to be an
Adverse  Person by the Board of Directors upon a  determination  of the Board of
Directors  that the  criteria  set forth in Section  11(a)(ii)(B)  apply to such
Person. Notwithstanding anything in this Agreement to the contrary, the Board of
Directors may not declare any of the following  entities an Adverse  Person:  PB
Capital Partners,  ULLICO,  The Common Fund, RCBA, Tutor, and Tutor-Saliba,  and
their respective Affiliates.

                                        2

<PAGE>



                  (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 (the "Exchange
Act"), as in effect on the date of this Agreement;  provided,  however,  that no
Person who is a director or officer of the Company  shall be deemed an Affiliate
or an  Associate  of any other  director or officer of the  Company  solely as a
result of his or her  position  as  director  or  officer  of the  Company;  and
provided,  further,  that  notwithstanding  anything  to the  contrary  in  this
Agreement,  for purposes of this Agreement,  any Person that is now or hereafter
becomes  a  limited  partner  of PB  Capital  Partners  shall be deemed to be an
Affiliate of PB Capital Partners for so long as PB Capital Partners continues in
existence and such Person is a Beneficial Owner of Common Stock solely by virtue
of its  ownership of an interest in PB Capital  Partners  and/or of Common Stock
beneficially owned by it prior to the date as of which this Agreement is amended
and restated.

                  (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, beneficially owns (as
         determined  pursuant to Rule 13d-3 of the General Rules and Regulations
         under the Exchange Act, as in effect on the date of this  Agreement) or
         has the right to dispose of;

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

                                    (A) the right to acquire (whether such right
                  is  exercisable  immediately  or 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 (other than these  Rights),
                  warrants or options, or otherwise;  provided,  however, that a
                  Person  shall not be deemed the  "Beneficial  Owner" of, or to
                  "beneficially  own," (1)  securities  tendered  pursuant  to a
                  tender or  exchange  offer made by such  Person or any of such
                  Person's   Affiliates  or   Associates   until  such  tendered
                  securities   are  accepted  for  purchase  or  exchange;   (2)
                  securities  issuable upon exercise of Rights at any time prior
                  to the  occurrence of a Triggering  Event;  or (3)  securities
                  issuable upon exercise of Rights from and after the occurrence
                  of a  Triggering  Event,  which  Rights were  acquired by such
                  Person or any of such Person's  Affiliates or Associates prior
                  to the  Distribution  Date or pursuant to Sections 3(a), 11(i)
                  or 22 hereof; or

                                    (B)  the  right  to  vote  pursuant  to  any
                  agreement,  arrangement  or  understanding  (whether or not in
                  writing); provided, however, that a Person shall not be deemed
                  the  "Beneficial  Owner"  of,  or to  "beneficially  own," any
                  security under this clause (B) if the  agreement,  arrangement
                  or  understanding to vote such security (1) arises solely from
                  a revocable proxy given in response to

                                        3

<PAGE>



                  a public proxy or consent  solicitation  made pursuant to, and
                  in accordance  with, the applicable  rules and  regulations of
                  the Exchange Act and (2) is not also then  reportable  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 clause (B) of Section
         1(d)(ii) hereof) or disposing of any securities of the Company;

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

                  (e)  "Business  Day" shall mean any day other than a Saturday,
Sunday,  or  a  day  on  which  banking  institutions  in  the  Commonwealth  of
Massachusetts 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., Boston time, on such date; provided,  however,  that if such date is not a
Business  Day it shall  mean 5:00  P.M.,  Boston  time,  on the next  succeeding
Business Day.

                  (g)  "Common  Stock"  shall mean the Common  Stock,  par value
$1.00 per share,  of the  Company,  except  that  "Common  Stock" when used with
reference to any Person other than the Company shall mean the capital stock with
the greatest  voting power, or the equity  securities or other equity  interests
having  power to control or direct the  management,  of such  Person or, if such
Person is a Subsidiary of another Person,  the Person which ultimately  controls
such  first-mentioned  Person and which has issued and outstanding  such capital
stock, equity securities or equity interests.

                  (h) "Disinterested  Director" shall mean (i) any member of the
Company's Board of Directors who is not an employee of the Company or any of its
Subsidiaries and is not an Acquiring  Person,  an Adverse Person or an Affiliate
or Associate of any such Person or a  representative  or nominee of an Acquiring
Person, an Adverse Person or any such Affiliate or Associate and was a member of
the Company's  Board of Directors  prior to the date as of which this  Agreement
has been  further  amended and  restated,  and (ii) any person who  subsequently
becomes a member of the  Company's  Board of  Directors  who is not an Acquiring
Person, an Adverse Person or an Affiliate or Associate of any such Person or a

                                        4

<PAGE>



representative  or nominee of an Acquiring  Person,  an Adverse Person or of any
such  Affiliate or Associate,  if such Person's  nomination  is  recommended  or
approved by a majority of the Disinterested Directors.

                  (i)  "Distribution  Date"  shall have the  meaning  defined in
Section 3(a) hereof.

                  (j) "Exercise Price" shall have the meaning defined in Section
7(b) hereof.

                  (k) "Expiration  Date" and "Final  Expiration Date" shall have
the meanings defined in Section 7(a) hereof.

                  (l) "Fair Market Value" of any  securities  or other  property
shall be as determined in accordance with Section 11(d) hereof.

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

                  (n)  "Preferred  Stock"  shall mean  shares of Series A Junior
Participating  Cumulative  Preferred  Stock,  par value $1.00 per share,  of the
Company having the rights and  preferences  set forth in the form of Certificate
of Vote of Directors  Establishing a Series of a Class of Stock attached  hereto
as Exhibit A.

                  (o)  "Principal  Party"  shall  have the  meaning  defined  in
Section 13(b) hereof.

                  (p)  "Redemption  Price"  shall  have the  meaning  defined in
Section 23 hereof.

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

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

                  (s) "Stock  Acquisition Date" shall mean 5:00 p.m. Boston time
on the date of the  first  public  announcement  (which,  for  purposes  of this
definition shall include,  without limitation, a press release or 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.  Notwithstanding  anything in
this Agreement to the contrary,  solely for the purpose of determining whether a
Stock  Acquisition Date has occurred,  PB Capital Partners,  ULLICO,  The Common
Fund, RCBA, Tutor,  Tutor-Saliba and their respective Affiliates and Associates,
shall be deemed not to  beneficially  own (i) any  shares of Series B  Preferred
Stock of the Company issued or issuable  pursuant to the Stock Purchase and Sale
Agreement, including

                                        5

<PAGE>



shares issued as payment-in-kind  dividends, (ii) any shares of the Common Stock
issued or  issuable  upon the  conversion  of such  shares of Series B Preferred
Stock,  (iii) any shares of Common  Stock  issued or  issuable  pursuant  to the
Participation Agreement by and between the Company and PB Capital Partners dated
as of November 4, 1996, or (iv) any shares of Common Stock issued or issuable to
Tutor upon  exercise of a certain  stock option  granted to Tutor on January 17,
1997.

                  (t) A  "Subsidiary"  of any Person shall mean any other Person
of which a majority  of the  voting  power of the voting  equity  securities  or
voting interests is owned,  directly or indirectly,  by such Person, or which is
otherwise controlled by such Person.

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

                  (v)      "Triggering Percentage" shall mean ten percent (10%).

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

         Section 3.        Issue of Right Certificates.

                  (a) Until the  earlier  of (i) the  close of  business  on the
tenth day after the Stock  Acquisition  Date,  (ii) the close of business on the
tenth Business Day after the date of the commencement, by any Person, other than
an Exempt Person, of a tender or exchange offer if, upon  consummation  thereof,
such Person would be an Acquiring Person or (iii) the determination by the Board
of  Directors  of the  Company,  pursuant to the  criteria  set forth in Section
11(a)(ii)(B) hereof, that a Person is an Adverse Person (including any such date
which is after  the date of this  Agreement  and  prior to the  issuance  of the
Rights)  (the   earliest  of  such  dates  being  herein   referred  to  as  the
"Distribution  Date"),  (x)  the  Rights  will  be  evidenced  (subject  to  the
provisions  of  Section  3(b)  hereof)  by  certificates  for the  Common  Stock
registered  in the names of the holders of the Common Stock (which  certificates
for Common Stock shall be deemed also to be certificates  for Rights) and not by
separate  certificates,  and  (y)  the  Rights  will  be  transferable  only  in
connection  with the transfer of the underlying  shares of Common Stock. As soon
as practicable after the Company has notified the Rights Agent of the occurrence
of 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 certificates,  in substantially the form of
Exhibit B hereto (the "Right

                                        6

<PAGE>



Certificates"),  evidencing one Right for each share of Common Stock so held. In
the event that an  adjustment  in the number of Rights per share of Common Stock
has been made  pursuant to Section  11(o)  hereof,  the  Company  shall make the
necessary and appropriate rounding adjustments (in accordance with Section 14(a)
hereof) at the time of  distribution  of the Right  Certificates,  so that Right
Certificates  representing only whole numbers of Rights are distributed and cash
is paid in lieu of any fractional  Rights. As of and after the close of business
on the  Distribution  Date,  the Rights will be  evidenced  solely by such Right
Certificates.

                  (b) Not later than ten days after the Record Date, the Company
will send a copy of a Summary  of Rights,  in  substantially  the form  attached
hereto as Exhibit C (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  for the  Common  Stock  with or  without a copy of the  Summary of
Rights attached  thereto,  and the registered  holders of the Common Stock shall
also be the registered holders of the associated Rights.  Until the Distribution
Date (or earlier  redemption,  expiration  or  termination  of the Rights),  the
transfer of any of the  certificates  for the Common  Stock  outstanding  on the
Record  Date,  even  without a copy of the Summary of Rights  attached  thereto,
shall also  constitute  the  transfer of the Rights  associated  with the Common
Stock represented by such certificate.

                  (c)  Certificates for the Common Stock issued after the Record
Date, but prior to the earlier of the Distribution  Date or the Expiration Date,
shall be deemed also to be certificates for Rights, and shall bear the following
legend:

                           This  certificate  also  evidences  and  entitles the
                  holder hereof to certain  Rights as set forth in a Shareholder
                  Rights Agreement  between Perini  Corporation and State Street
                  Bank and Trust Company, as Rights Agent, dated as of September
                  23,  1988,  as amended  and  restated as of May 17,  1990,  as
                  further  amended  and  restated  as of January  17,  1997 (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 Perini  Corporation.  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.  Perini
                  Corporation  may redeem the  Rights at a  redemption  price of
                  $0.02 per Right, subject to adjustment, under the terms of the
                  Rights Agreement.  Perini  Corporation 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

                                        7

<PAGE>



                  circumstances,  Rights issued to or held by Acquiring Persons,
                  Adverse  Persons or any  Affiliates or Associates  thereof (as
                  defined in the Rights  Agreement) and any subsequent holder of
                  such Rights may become null and void.

With respect to such  certificates  containing the foregoing  legend,  until the
earlier of the Distribution  Date or the Expiration Date, the Rights  associated
with the Common Stock  represented  by such  certificates  shall be evidenced by
such certificates alone, and the transfer of any of such certificates shall also
constitute  the  transfer  of  the  Rights  associated  with  the  Common  Stock
represented  by such  certificates.  In the event that the Company  purchases or
acquires  any  shares of Common  Stock  after the  Record  Date but prior to the
Distribution  Date, any Rights associated with such Common Stock shall be deemed
cancelled  and retired so that the Company shall not be entitled to exercise any
Rights  associated  with  the  shares  of  Common  Stock  which  are  no  longer
outstanding.

         Section 4.        Form of Right Certificates.

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

                  (b) Any Right  Certificate  issued pursuant to Section 3(a) or
Section 22 hereof that represents Rights  beneficially owned by (i) an Acquiring
Person, an Adverse Person or any Associate or Affiliate of such a Person, (ii) a
transferee of an Acquiring Person or an Adverse Person (or of any such Associate
or Affiliate)  who becomes a transferee  after the  Acquiring  Person or Adverse
Person becomes such, or (iii) a transferee of an Acquiring  Person or an Adverse
Person (or of any such Associate or Affiliate) who becomes a transferee prior to
or  concurrently  with the Acquiring  Person or Adverse Person becoming such and
receives  such  Rights  pursuant  to either (A) a transfer  (whether  or not for
consideration)  from the Acquiring Person or Adverse Person to holders of equity
interests in such Acquiring  Person or Adverse Person or to any Person with whom
the Acquiring Person or Adverse Person has any continuing agreement, arrangement
or  understanding  regarding the transferred  Rights or (B) a transfer which the
Board of Directors of the Company has determined is part of a plan,  arrangement
or  understanding  which has as a primary  purpose  or effect the  avoidance  of
Section 7(e) hereof, and any Right Certificate issued pursuant to Section 6 or

                                        8

<PAGE>



Section 11 upon transfer, exchange, replacement or adjustment of any other Right
Certificate referred to in this sentence, shall contain the following legend:

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

The Company  shall give  notice to the Rights  Agent  promptly  after it becomes
aware of the existence and identity of any Acquiring Person or Adverse Person or
any Associate or Affiliate thereof.

         Section 5.        Countersignature and Registration.

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

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


                                        9

<PAGE>



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

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

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

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

                  (a) Subject to Section 7(e) hereof,  the registered  holder of
any Right  Certificate  may exercise  the Rights  evidenced  thereby  (except as
otherwise  provided  herein)  in  whole  or  in  part  at  any  time  after  the
Distribution  Date upon  surrender  of the Right  Certificate,  with the form of
election to  purchase  and the  certificate  on the reverse  side  thereof  duly
executed,  to the Rights  Agent at the  office or  offices  of the Rights  Agent
designated  for such purpose,  together  with payment of the aggregate  Exercise
Price for the total number of

                                       10

<PAGE>



one  one-hundredths of a share of Preferred Stock (or other securities,  cash or
other assets,  as the case may be) as to which such surrendered  Rights are then
exercised,  at or prior to the  earlier  of (i)  January  21,  2007 (the  "Final
Expiration  Date") or (ii) the time at which the Rights are redeemed as provided
in Section 23 hereof (the earlier of (i) or (ii) being herein referred to as the
"Expiration   Date").   Except  as  set  forth  in  Section   7(e)   hereof  and
notwithstanding  any other provision of this Agreement,  any Person who prior to
the  Distribution  Date  becomes a record  holder of shares of Common  Stock may
exercise all of the rights of a registered  holder of a Right  Certificate  with
respect to the Rights  associated with such shares of Common Stock in accordance
with the  provisions  of this  Agreement,  as of the date such Person  becomes a
record holder of shares of Common Stock.

                  (b) The Exercise Price for each one  one-hundredth  of a share
of  Preferred  Stock  pursuant to the  exercise of a Right  shall  initially  be
$100.00, shall be subject to adjustment from time to time as provided in Section
11 and Section  13(a)  hereof and shall be payable in lawful money of the United
States of America in accordance with Section 7(c) below.

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


                                       11

<PAGE>



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

                  (e)   Notwithstanding   anything  in  this  Agreement  to  the
contrary,  from and after the first occurrence of a Section 11(a)(ii) Event, any
Rights  beneficially  owned by (i) an Acquiring Person, an Adverse Person or any
Associate or  Affiliate  of such a Person or (ii) a  transferee  of an Acquiring
Person or an Adverse  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 an Adverse  Person (or of any such  Associate or Affiliate)
who becomes a transferee  prior to or concurrently  with the Acquiring Person or
Adverse Person  becoming such and receives such Rights  pursuant to either (A) a
transfer (whether or not for consideration) from the Acquiring Person or Adverse
Person to holders of equity interests in such Acquiring Person or Adverse Person
or to any  Person  with whom the  Acquiring  Person or  Adverse  Person  has any
continuing  agreement,  arrangement or  understanding  regarding the transferred
Rights or (B) a  transfer  which  the  Board of  Directors  of the  Company  has
determined  is part of a  plan,  arrangement  or  understanding  which  has as a
primary purpose or effect the avoidance of this Section 7(e),  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
ensure that the  provisions  of this  Section  7(e) and Section  4(b) hereof are
complied with,  but shall have no liability to any holder of Right  Certificates
or other  Person  as a result of its  failure  to make any  determinations  with
respect  to an  Acquiring  Person,  an  Adverse  Person  or  any  Affiliates  or
Associates thereof or any transferee of any of them 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 of Rights upon the
occurrence of any purported  exercise as set forth in this Section 7 unless such
registered holder shall have (i) completed and signed the certificate  contained
in the form of election to purchase  set forth on the reverse  side of the Right
Certificate  surrendered  for such exercise,  and (ii) provided such  additional
evidence of the identity of the Beneficial Owner (or former Beneficial Owner) or
Affiliates or Associates thereof as the Company shall reasonably request.

         Section 8.  Cancellation  and  Destruction of Right  Certificates.  All
Right Certificates surrendered for the purpose of exercise,  transfer, split up,
combination  or  exchange  shall,  if  surrendered  to the Company or any of its
agents,  be delivered to the Rights Agent for cancellation or in cancelled form,
or, if surrendered  to the Rights Agent,  shall be cancelled by it, and no Right
Certificates  shall be issued in lieu thereof  except as expressly  permitted by
any of the provisions of this Agreement. The Company shall deliver to the Rights
Agent for cancellation and retirement,  and the Rights Agent shall so cancel and
retire,

                                       12

<PAGE>



any other Right Certificate  purchased or acquired by the Company otherwise than
upon the exercise  thereof.  The Rights Agent shall deliver all cancelled  Right
Certificates  to the Company,  or shall,  at the written request of the Company,
destroy such  cancelled  Right  Certificates,  and in such case shall  deliver a
certificate of destruction thereof to the Company.

         Section 9.        Reservation and Availability of Preferred Stock.

                  (a) The Company  covenants and agrees that it will cause to be
reserved  and kept  available  out of its  authorized  and  unissued  shares  of
Preferred  Stock or any authorized and issued shares of Preferred  Stock held in
its treasury, the number of shares of Preferred Stock that will be sufficient to
permit the exercise in full of all outstanding and exercisable Rights.

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

                  (c) The  Company  shall use its best  efforts to (i) file,  as
soon as  practicable  following  the  earliest  date after the  occurrence  of a
Section  11(a)(ii)  Event as of which the  consideration  to be delivered by the
Company  upon  exercise of the Rights has been  determined  in  accordance  with
Section  11(a)(iii)  hereof,  or as  soon  as  required  by  law  following  the
Distribution  Date,  as the case  may be, a  registration  statement  under  the
Securities Act of 1933, as amended (the "Securities  Act"),  with respect to the
securities  purchasable upon exercise of the Rights on an appropriate form, (ii)
cause such  registration  statement to become  effective as soon as  practicable
after  such  filing  and  (iii)  cause  such  registration  statement  to remain
effective  (with a prospectus  that at all times meets the  requirements  of the
Securities  Act) until the earlier of (A) the date as of which the Rights are no
longer exercisable for such securities, and (B) the Expiration Date. The Company
will also take such action as may be  appropriate  under,  and which will ensure
compliance  with,  the  securities  or "blue sky" laws of the various  states in
connection with the  exercisability  of the Rights.  The Company may temporarily
suspend  for a period of time not to exceed  ninety (90) days after the date 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 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.  Notwithstanding  any such  provision of
this  Agreement  to the  contrary,  the Rights shall not be  exercisable  in any
jurisdiction unless the requisite  qualification in such jurisdiction shall have
been obtained.


                                       13

<PAGE>



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

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

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

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

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

                                       14

<PAGE>



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

                           (ii)     In the event

                                    (A)     any Person, alone or together with 
                  its Affiliates and Associates, shall become an Acquiring 
                  Person; or

                                    (B) the Board of  Directors  of the  Company
                  shall declare any Person to be an Adverse Person,  after (x) a
                  determination  that such  Person,  alone or together  with its
                  Affiliates and Associates,  has become the Beneficial Owner of
                  10% or more of the outstanding  shares of Common Stock and (y)
                  a determination  by the Board of Directors,  after  reasonable
                  inquiry and  investigation,  including such  consultation,  if
                  any,   with  such  persons  as  such   directors   shall  deem
                  appropriate, that (a) such Beneficial Ownership by such Person
                  is intended to cause,  is  reasonably  likely to cause or will
                  cause the Company to repurchase the Common Stock  beneficially
                  owned by such  Person or to cause  pressure  on the Company to
                  take  action  or  enter  into  a  transaction   or  series  of
                  transactions  which would provide such Person with  short-term
                  financial  gain  under   circumstances   where  the  Board  of
                  Directors  determines that the best long-term interests of the
                  Company and its shareholders, but for the actions and possible
                  actions  of such  Person,  would not be served by taking  such
                  action  or  entering  into  such  transactions  or  series  of
                  transactions at that time or (b) such Beneficial  Ownership is
                  causing  or  reasonably  likely  to cause a  material  adverse
                  impact   (including,   but  not  limited  to,   impairment  of
                  relationships  with  customers or  impairment of the Company's
                  ability to maintain its competitive  position) on the business
                  or prospects of the Company; provided, however, that the Board
                  of  Directors of the Company may not declare a Person to be an
                  Adverse Person if, prior to the time that such Person acquired
                  10% or more of the shares of Common  Stock  then  outstanding,
                  such Person  provided to the Board of  Directors  in writing a
                  statement  of  such   Person's   purpose  and   intentions  in
                  connection  with the  proposed  acquisition  of Common  Stock,
                  together with any other  information  reasonably  requested of
                  such Person by the

                                       15

<PAGE>



                  Board of Directors, and the Board of Directors,  based on such
                  statement and reasonable inquiry and investigation,  including
                  such consultation,  if any, with such persons as the directors
                  shall deem appropriate, determines to notify and notifies such
                  Person in writing  that it will not declare  such Person to be
                  an  Adverse  Person;  provided  further,  that  the  Board  of
                  Directors   may   expressly   condition   in  any   manner   a
                  determination  not to  declare a Person an  Adverse  Person on
                  such   conditions  as  the  Board  of  Directors  may  select,
                  including without limitation, such Person's not acquiring more
                  than a specified  amount of stock and/or on such  Person's not
                  taking actions  inconsistent  with the purposes and intentions
                  disclosed  by such  Person in the  statement  provided  to the
                  Board  of  Directors.  No  delay or  failure  by the  Board of
                  Directors to declare a Person to be an Adverse Person shall in
                  any way waive or  otherwise  affect  the power of the Board of
                  Directors  subsequently  to  declare a Person to be an Adverse
                  Person. In the event that the Board of Directors should at any
                  time  determine,  upon reasonable  inquiry and  investigation,
                  including  consultation  with such  persons  as the  directors
                  shall  deem  appropriate,  that  such  Person  has  not met or
                  complied  with  any  condition   specified  by  the  Board  of
                  Directors,  the Board of Directors may at any time  thereafter
                  declare  such Person to be an Adverse  Person  pursuant to the
                  provisions of this Section 11(a)(ii)(B);

then,  and in each such case,  promptly  following any such  occurrence,  proper
provision  shall be made so that each  holder of a Right,  except as provided in
Section 7(e) hereof,  shall  thereafter  have a right to receive,  upon exercise
thereof at the then current  Exercise Price in accordance with the terms of this
Agreement,  such  number of shares of  Preferred  Stock of the  Company as shall
equal the result obtained by (x) multiplying the then current  Exercise Price by
the then number of one  one-hundredths of a share of Preferred Stock for which a
Right was  exercisable  immediately  prior to the first  occurrence of a Section
11(a)(ii)  Event and  dividing  that product by (y) 50% of the Fair Market Value
per one one-hundredth of a share of the Preferred Stock (determined  pursuant to
Section  11(d)) on the date of the  occurrence  of any one of the events  listed
above in this Section 11(a)(ii); provided, however, that if the transaction that
would  otherwise  give rise to the  foregoing  adjustment is also subject to the
provisions  of Section 13 hereof,  then only the  provisions of Section 13 shall
apply and no adjustment shall be made pursuant to this Section 11(a)(ii).

                           (iii) In the event that there shall not be sufficient
         Treasury shares or authorized but unissued shares of Preferred Stock to
         permit  the  exercise  in full of the  Rights  in  accordance  with the
         foregoing Section  11(a)(ii),  the Company shall take all action as may
         be  necessary  to  authorize  and reserve for  issuance  such number of
         additional  shares  of  Preferred  Stock  as may  from  time to time be
         required  to be  issued  upon  the  exercise  in  full  of  all  Rights
         outstanding  and, if  necessary,  shall use its best  efforts to obtain
         shareholder approval thereof.  Notwithstanding the foregoing provisions
         of this  Section  11(a)(iii),  in lieu of issuing  shares of  Preferred
         Stock in accordance with Section 11(a)(ii) hereof, if a majority of the
         Disinterested  Directors then in office  determines that such action is
         necessary or appropriate and is not

                                       16

<PAGE>



         contrary to the interests of the holders of the Rights,  they may elect
         to cause the  Company to pay,  and if  sufficient  shares of  Preferred
         Stock  cannot  be  issued  for  such  purpose  in  accordance  with the
         provisions  hereof, the Company shall issue or pay upon the exercise of
         the Rights, cash, property, debt securities,  shares of Preferred Stock
         or Common Stock, or any combination  thereof,  having an aggregate Fair
         Market  Value equal to the Fair Market Value of the shares of Preferred
         Stock  which  otherwise  would have been  issuable  pursuant to Section
         11(a)(ii).  Any  such  election  by a  majority  of  the  Disinterested
         Directors of the Company must be made and publicly  announced within 30
         days of the date on which any  Section  11(a)(ii)  Event  first  occurs
         following the Stock Acquisition Date.

                  (b) If the Company shall fix a record date for the issuance of
rights,  options or warrants to all holders of Preferred  Stock  entitling  them
(for a period  expiring  within 45  calendar  days  after such  record  date) to
subscribe for or purchase Preferred Stock (or securities having the same rights,
privileges and  preferences as the shares of Preferred Stock  ("preferred  stock
equivalents")) or securities convertible into Preferred Stock or preferred stock
equivalents  at a price per share of  Preferred  Stock or per share of preferred
stock  equivalents  (or  having a  conversion  price per  share,  if a  security
convertible into Preferred Stock or preferred stock  equivalents)  less than the
Fair Market Value (as determined  pursuant to Section 11(d) hereof) per share of
Preferred  Stock on such record date,  the Exercise  Price to be in effect after
such record date shall be determined by multiplying the Exercise Price in effect
immediately  prior to such  record date by a fraction,  the  numerator  of which
shall be the number of shares of  Preferred  Stock  outstanding  on such  record
date, plus the number of shares of Preferred Stock which the aggregate  offering
price of the total  number of shares of  Preferred  Stock to be offered (and the
aggregate  initial  conversion  price  of the  convertible  securities  so to be
offered) would  purchase at such Fair Market Value and the  denominator of which
shall be the number of shares of  Preferred  Stock  outstanding  on such  record
date,  plus the number of  additional  shares of Preferred  Stock and  preferred
stock  equivalents to be offered for subscription or purchase (or into which the
convertible securities so to be offered are initially convertible). In case such
subscription  price may be paid in a consideration part or all of which shall be
in a form  other than cash,  the value of such  consideration  shall be the Fair
Market Value thereof determined in accordance with Section 11(d) hereof.  Shares
of Preferred  Stock owned by or held for the account of the Company shall not be
deemed  outstanding for the purpose of any such  computation.  Such  adjustments
shall be made  successively  whenever  such a record  date is fixed;  and in the
event that such rights or warrants are not so issued,  the Exercise  Price shall
be  adjusted  to be the  Exercise  Price  which  would then be in effect if such
record date had not been fixed.

                  (c) If the Company shall fix a record date for the making of a
distribution to all holders of Preferred Stock (including any such  distribution
made in connection  with a  consolidation  or merger in which the Company is the
continuing corporation) of evidences of indebtedness, cash (other than a regular
periodic cash dividend out of the earnings or retained earnings of the Company),
assets  (other than a dividend  payable in Preferred  Stock,  but  including any
dividend payable in stock other than Preferred Stock) or subscription rights or

                                       17

<PAGE>



warrants  (excluding those referred to in Section 11(b)),  the Exercise Price to
be in effect  after such  record date shall be  determined  by  multiplying  the
Exercise  Price in effect  immediately  prior to such record date by a fraction,
the numerator of which shall be the Fair Market Value (as determined pursuant to
Section 11(d)  hereof) per one  one-hundredth  of a share of Preferred  Stock on
such record date, less the Fair Market Value (as determined  pursuant to Section
11(d) hereof) of the portion of the cash, assets or evidences of indebtedness so
to be  distributed or of such  convertible  securities,  subscription  rights or
warrants  applicable to one  one-hundredth of a share of Preferred Stock and the
denominator of which shall be the Fair Market Value (as  determined  pursuant to
Section 11(d) hereof) per one  one-hundredth of a share of Preferred Stock. Such
adjustments shall be made successively whenever such a record date is fixed; and
in the event that such  distribution  is not so made,  the Exercise  Price shall
again be  adjusted  to be the  Exercise  Price  which would be in effect if such
record date had not been fixed.

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

                           (i) In the case of a  publicly-traded  stock or other
         security,  the Fair Market  Value on any date shall be deemed to be the
         average of the daily closing prices per share of such stock or per unit
         of such other  security  for the 30  consecutive  Trading Days (as such
         term is hereinafter  defined) immediately prior to such date, provided,
         however,  that in the event that the Fair Market Value per share of any
         share of stock is determined during a period following the announcement
         by the issuer of such stock of (x) a dividend or  distribution  on such
         stock  payable in shares of such stock or securities  convertible  into
         shares  of  such  stock  or  (y)  any   subdivision,   combination   or
         reclassification  of such stock,  and prior to the expiration of the 30
         Trading  Day period  after the  ex-dividend  date for such  dividend or
         distribution,  or the record date for such subdivision,  combination or
         reclassification,  then,  and in each such case,  the Fair Market Value
         shall be properly  adjusted to take into account ex- dividend  trading.
         The closing  price for each day shall be the last sale  price,  regular
         way,  or, in case no such sale takes place on such day,  the average of
         the  closing  bid and asked  prices,  regular  way,  in either  case as
         reported in the principal  consolidated  transaction  reporting  system
         with  respect to  securities  listed or  admitted to trading on the New
         York Stock Exchange or, if the securities are not listed or admitted to
         trading on the New York Stock  Exchange,  as reported in the  principal
         consolidated  transaction  reporting  system with respect to securities
         listed on the  principal  national  securities  exchange  on which such
         security  is listed  or  admitted  to  trading;  or,  if not  listed or
         admitted  to  trading on any  national  securities  exchange,  the last
         quoted price (or, if not so quoted, the average of the last quoted high
         bid and low asked prices) in the  over-the-counter  market, as reported
         by NASDAQ or such other  system then in use; or, if on any such date no
         bids for such security are quoted by any such organization, the average
         of the  closing bid and asked  prices as  furnished  by a  professional
         market maker making a market in such security  selected by the Board of
         Directors of the Company. If on any such date no market maker is making
         a market in such security, the Fair

                                       18

<PAGE>



         Market  Value  of  such  security  on such  date  shall  be  determined
         reasonably  and with  utmost good faith to the holders of the Rights by
         the Board of  Directors of the  Company,  including,  if at the time of
         such determination there is an Acquiring Person or an Adverse Person, a
         majority of the Disinterested Directors then in office, or if there are
         no  Disinterested  Directors,  by a  nationally  recognized  investment
         banking firm  selected by the Board of Directors,  which  determination
         shall be described in a statement filed with the Rights Agent and shall
         be binding on the Rights Agent and the holders of the Rights.  The term
         "Trading  Day"  shall  mean  a day  on  which  the  principal  national
         securities  exchange  on which such  security  is listed or admitted to
         trading is open for the transaction of business or, if such security is
         not listed or admitted to trading on any national securities  exchange,
         a Business Day.

                           (ii) If a  security  is not  publicly  held or not so
         listed or traded,  "Fair  Market  Value"  shall mean the fair value per
         share  of  stock  or  per  other  unit  of  such  security,  determined
         reasonably  and with  utmost good faith to the holders of the Rights by
         the Board of  Directors of the  Company,  including,  if at the time of
         such determination there is an Acquiring Person or an Adverse Person, a
         majority of the Disinterested Directors then in office, or if there are
         no  Disinterested  Directors,  by a  nationally  recognized  investment
         banking firm  selected by the Board of Directors,  which  determination
         shall be described in a statement filed with the Rights Agent and shall
         be binding on the Rights Agent and the holders of the Rights; provided,
         however, that for the purposes of making any adjustment provided for by
         Section 11(a)(ii) hereof, the Fair Market Value of a share of Preferred
         Stock shall not be less than the product of the then Fair Market  Value
         of a share  of  Common  Stock  multiplied  by the  higher  of the  then
         Dividend  Multiple or Vote Multiple  applicable to the Preferred  Stock
         (as defined in the  Certificate of Vote of Directors  establishing  the
         Preferred Stock attached as Exhibit A hereto) and shall not exceed 105%
         of the product of the then Fair Market Value of a share of Common Stock
         multiplied by the higher of the then Dividend Multiple or Vote Multiple
         applicable to the Preferred Stock.

                           (iii) In the case of property other than  securities,
         the Fair Market Value thereof shall be determined  reasonably  and with
         utmost good faith to the holders of Rights by the Board of Directors of
         the Company,  including,  if at the time of such determination there is
         an Acquiring Person, a majority of the Disinterested  Directors then in
         office,  or if there are no  Disinterested  Directors,  by a nationally
         recognized  investment banking firm selected by the Board of Directors,
         which  determination  shall be described in a statement  filed with the
         Rights Agent and shall be binding upon the Rights Agent and the holders
         of the Rights.

                  (e)  Anything  herein  to  the  contrary  notwithstanding,  no
adjustment in the Exercise Price shall be required unless such adjustment  would
require an increase or decrease of at least 1% in the Exercise Price;  provided,
however,  that any  adjustments  which by reason of this  Section  11(e) are not
required  to be made shall be  carried  forward  and taken  into  account in any
subsequent adjustment. All calculations under this Section 11 shall be made to

                                       19

<PAGE>



the nearest cent or to the nearest  ten-thousandth of a share of Common Stock or
one-millionth of a share of Preferred Stock, as the case may be. Notwithstanding
the first  sentence  of this  Section  11(e),  any  adjustment  required by this
Section 11 shall be made no later  than the  earlier of (i) three (3) years from
the  date  of the  transaction  which  mandates  such  adjustment  or  (ii)  the
Expiration Date.

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

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

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

                  (i)  The  Company  may  elect  on or  after  the  date  of any
adjustment of the Exercise Price to adjust the number of Rights, in substitution
for any adjustment in the number of shares of Preferred Stock  purchasable  upon
the exercise of a Right. Each of the Rights  outstanding after the adjustment in
the number of Rights shall be exercisable  for the number of one  one-hundredths
of a share of  Preferred  Stock for which a Right  was  exercisable  immediately
prior to such adjustment.  Each Right held of record prior to such adjustment of
the number of Rights  shall  become  that  number of Rights  (calculated  to the
nearest one ten-  thousandth)  obtained by dividing the Exercise Price in effect
immediately  prior to adjustment of the Exercise  Price by the Exercise Price in
effect  immediately  after  adjustment of the Exercise Price.  The Company shall
make a public  announcement  of its  election  to adjust  the  number of Rights,
indicating  the record date for the  adjustment,  and, if known at the time, the
amount of the  adjustment to be made.  This record date may be the date on which
the Exercise

                                       20

<PAGE>



Price is adjusted or any day  thereafter,  but, if the Right  Certificates  have
been  issued,  shall be at least ten (10) days later than the date of the public
announcement.  If Right  Certificates have been issued,  upon each adjustment of
the number of Rights  pursuant to this  Section  11(i),  the Company  shall,  as
promptly as  practicable,  cause to be distributed to holders of record of Right
Certificates  on such  record  date Right  Certificates  evidencing,  subject to
Section 14 hereof, the additional Rights to which such holders shall be entitled
as a result of such adjustment, or, at the option of the Company, shall cause to
be distributed to such holders of record in substitution and replacement for the
Right  Certificates  held by such holders prior to the date of  adjustment,  and
upon  surrender  thereof,  if required by the  Company,  new Right  Certificates
evidencing  all the Rights to which such  holders  shall be entitled  after such
adjustment.  Right  Certificates so to be distributed shall be issued,  executed
and countersigned in the manner provided for herein (and may bear, at the option
of the Company,  the adjusted  Exercise  Price) and shall be  registered  in the
names  of the  holders  of  record  of Right  Certificates  on the  record  date
specified in the public announcement.

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

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

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

                  (m)   Anything   in   this   Section   11  to   the   contrary
notwithstanding,  the Company  shall be entitled to make such  reductions in the
Exercise  Price,  in addition to those  adjustments  expressly  required by this
Section 11, as and to the extent that it in its sole discretion  shall determine
to be advisable in order that any consolidation or subdivision of the

                                       21

<PAGE>



Preferred  Stock,  issuance  wholly for cash of any shares of Preferred Stock at
less than the Fair Market Value, issuance wholly for cash of shares of Preferred
Stock or securities  which by their terms are  convertible  into or exchangeable
for shares of Preferred Stock, stock dividends or issuance of rights, options or
warrants  referred to  hereinabove  in this  Section 11,  hereafter  made by the
Company  to  holders  of its  Preferred  Stock,  shall  not be  taxable  to such
shareholders.

                  (n) The Company covenants and agrees that it shall not, at any
time after the Distribution Date, (i) consolidate with, (ii) merge with or into,
or (iii) sell or transfer (or permit any Subsidiary to sell or transfer), in one
transaction  or a series  of  related  transactions,  assets  or  earning  power
aggregating  50% or more of the assets or earning  power of the  Company and its
Subsidiaries taken as a whole, to any other Person or Persons if (x) at the time
of or immediately after such consolidation, merger or sale there are any rights,
warrants or other  instruments  outstanding  or  agreements or  arrangements  in
effect which would  substantially  diminish or otherwise  eliminate the benefits
intended to be afforded by the Rights, or (y) prior to,  simultaneously  with or
immediately  after  such  consolidation,  merger or sale the  shareholders  of a
Person who  constitutes,  or would  constitute,  the  "Principal  Party" for the
purposes of Section  13(a) hereof shall have received a  distribution  of Rights
previously  owned by such Person or any of its  Affiliates and  Associates.  The
Company further  covenants and agrees that after the  Distribution  Date it will
not, except as permitted by Section 23 or Section 27 hereof, take (or permit any
Subsidiary  to take)  any  action  if at the  time  such  action  is taken it is
reasonably foreseeable that such action will substantially diminish or otherwise
eliminate the benefits intended to be afforded by the Rights.

                  (o) In the event the Company  shall at any time after the date
of this Agreement and prior to the  Distribution  Date (i) declare a dividend on
the outstanding  Common Stock payable in shares of Common Stock,  (ii) subdivide
the outstanding  Common Stock, (iii) combine the outstanding Common Stock into a
smaller  number of shares or (iv)  issue any  shares of its  capital  stock in a
reclassification   of  the  outstanding  Common  Stock,  the  number  of  Rights
associated with each share of Common Stock shall be proportionately  adjusted so
that the number of Rights thereafter  associated with each share of Common Stock
following  any such event shall equal the result  obtained  by  multiplying  the
number of Rights associated with each share of Common Stock immediately prior to
such event by a fraction,  the  numerator  of which shall be the total number of
shares of Common Stock  outstanding  immediately  prior to the occurrence of any
such event listed in clauses (i), (ii),  (iii) or (iv) above and the denominator
of which  shall be the  total  number of  shares  of  Common  Stock  outstanding
immediately  following the occurrence of such event listed in clauses (i), (ii),
(iii) or (iv) above.

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

                                       22

<PAGE>



under Section  11(a)(ii),  the Rights Agent shall return such Right  Certificate
duly marked to indicate that such exercise has occurred.

         Section 12. Certificate of Adjusted Exercise Price or Number of Shares.
Whenever an adjustment is made as provided in Section 11,  Section 13 or Section
23(d) hereof, the Company shall (a) promptly prepare a certificate setting forth
such  adjustment  and a  brief  statement  of  the  facts  accounting  for  such
adjustment, (b) promptly file with the Rights Agent and with each transfer agent
for the Preferred Stock and the Common Stock a copy of such  certificate and (c)
mail a brief summary thereof to each holder of a Right Certificate in accordance
with Section 26 hereof.  The Rights Agent shall be fully protected in relying on
any such  certificate and on any adjustment  contained  therein and shall not be
deemed to have knowledge of any such  adjustment  unless and until it shall have
received such certificate.

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

                  (a) In the event that,  following the Stock  Acquisition Date,
directly or indirectly,  (x) the Company shall  consolidate  with, or merge with
and into,  any  other  Person  (other  than a  Subsidiary  of the  Company  in a
transaction  which is not prohibited by Section 11(n)  hereof),  and the Company
shall not be the continuing or surviving  corporation of such  consolidation  or
merger,  (y) any Person (other than a Subsidiary of the Company in a transaction
which is not  prohibited by Section 11(n)  hereof)  shall  consolidate  with the
Company,  or  merge  with  and into the  Company  and the  Company  shall be the
continuing or surviving  corporation of such merger and, in connection with such
merger,  all or part of the  shares of Common  Stock  shall be  changed  into or
exchanged for stock or other securities of any other Person or cash or any other
property,  or (z) the Company shall sell, mortgage or otherwise transfer (or one
or more of its Subsidiaries shall sell, mortgage or otherwise transfer),  in one
transaction  or a series  of  related  transactions,  assets  or  earning  power
aggregating  50% or more of the assets or earning  power of the  Company and its
Subsidiaries  (taken as a whole) to any other Person or Persons  (other than the
Company or any  Subsidiary of the Company in one or more  transactions,  each of
which is not prohibited by Section 11(n)  hereof),  then, and in each such case,
proper  provision  shall be made so that: (i) each holder of a Right,  except as
provided  in Section  7(e)  hereof,  shall have the right to  receive,  upon the
exercise thereof at the then current Exercise Price in accordance with the terms
of this Agreement,  such number of validly authorized and issued, fully paid and
nonassessable shares of freely tradeable Common Stock of the Principal Party (as
hereinafter defined in Section 13(b)), free and clear of rights of call or first
refusal,  liens,  encumbrances or other adverse claims, as shall be equal to the
result obtained by (1) multiplying  the number of such one  one-hundredths  of a
share  for  which  a  Right  was  exercisable  immediately  prior  to the  first
occurrence  of a  Section  11(a)(ii)  Event)  by the  Exercise  Price in  effect
immediately prior to such first occurrence, and dividing that product by (2) 50%
of the Fair Market Value (determined pursuant to Section 11(d) hereof) per share
of the Common Stock of such Principal  Party on the date of consummation of such
consolidation,  merger,  sale or  transfer;  (ii)  such  Principal  Party  shall
thereafter  be liable for, and shall  assume,  by virtue of such  consolidation,
merger, sale or transfer, all the obligations and duties of the Company pursuant

                                       23

<PAGE>



to this Agreement;  (iii) the term "Company" shall thereafter be deemed to refer
to such Principal Party, it being  specifically  intended that the provisions of
Section 11 hereof shall apply to such Principal  Party;  and (iv) such Principal
Party shall take such steps (including, but not limited to, the reservation of a
sufficient  number of  shares of its  Common  Stock to  permit  exercise  of all
outstanding  Rights in accordance  with this Section  13(a)) in connection  with
such consummation as may be necessary to assure that the provisions hereof shall
thereafter be  applicable,  as nearly as  reasonably  may be, in relation to its
shares of Common Stock thereafter deliverable upon the exercise of the Rights.

                  (b)      "Principal Party" shall mean

                           (i)  in the  case  of any  transaction  described  in
         clause (x) or (y) of the first  sentence of Section  13(a),  the Person
         that is the issuer of any securities  into which shares of Common Stock
         of the Company are converted in such merger or consolidation, and if no
         securities  are so issued,  the Person  that is the other  party to the
         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, (x) if the Common Stock of such Person
is not at such time and has not been  continuously  over the preceding  12-month
period  registered  under  Section 12 of the Exchange  Act, 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
(y) in case such Person is a Subsidiary,  directly or  indirectly,  of more than
one  Person,  the  Common  Stocks  of two or more of which  are and have been so
registered,  "Principal  Party"  shall refer to whichever of such Persons is the
issuer of the Common Stock having the greatest  aggregate market value of shares
outstanding.

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

                           (i)      prepare and file a registration statement 
         under the Securities Act with respect to the Rights and the securities 
         purchasable upon exercise of the Rights on

                                       24

<PAGE>



         an appropriate  form,  use its best efforts to cause such  registration
         statement to become effective as soon as practicable  after such filing
         and use its best efforts to cause such registration statement to remain
         effective (with a prospectus  that at all times meets the  requirements
         of the Securities Act) until the Expiration Date;

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

                           (iii) use its best  efforts to list (or  continue the
         listing of) the Rights and the securities  purchasable upon exercise of
         the Rights on a national securities exchange or to meet the eligibility
         requirements for quotation on NASDAQ; and

                           (iv)  deliver to  holders  of the  Rights  historical
         financial statements for the Principal Party and each of its Affiliates
         which  comply  in all  material  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.

         Section 14.       Fractional Rights and Fractional Shares.

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

                  (b) The Company  shall not be required to issue  fractions  of
shares of Preferred Stock (other than fractions which are integral  multiples of
one  one-hundredth of a share of Preferred Stock) upon exercise of the Rights or
to distribute  certificates which evidence  fractional shares of Preferred Stock
(other than fractions  which are integral  multiples of one  one-hundredth  of a
share of Preferred  Stock).  If the Company elects not to issue such  fractional
shares,  the Company shall pay, in lieu of fractional  shares of Preferred Stock
that are not  integral  multiples of one  one-hundredth  of a share of Preferred
Stock, to the registered  holders of Right  Certificates at the time such Rights
are exercised as herein provided an amount in cash equal to the same fraction of
the Fair Market Value of one  one-hundredth  of a share of Preferred  Stock. For
purposes of this Section 14(b), the Fair Market Value of one  one-hundredth of a
share of Preferred  Stock shall be  determined  pursuant to Section 11(d) hereof
for the Trading Day immediately prior to the date of such exercise.


                                       25

<PAGE>



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

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

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

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

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

                  (c) the  Company  and the Rights  Agent may deem and treat the
person in whose name a Right  Certificate (or, prior to the  Distribution  Date,
the  associated  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 Right  Certificates  or the associated  Common Stock
certificate  made by anyone other than the Company or the Rights  Agent) for all
purposes  whatsoever,  and neither  the  Company  nor the Rights  Agent shall be
affected by any notice to the contrary; and

                  (d)   notwithstanding   anything  in  this  Agreement  to  the
contrary,  neither the Company nor the Rights Agent shall have any  liability to
any holder of a Right or other Person

                                       26

<PAGE>



as the result of its  inability  to perform  any of its  obligations  under this
Agreement by reason of any  preliminary or permanent  injunction or other order,
decree  or  ruling  issued  by  a  court  of  competent  jurisdiction  or  by  a
governmental, regulatory or administrative agency or commission, or any statute,
rule,  regulation or executive order  promulgated or enacted by any governmental
authority prohibiting or otherwise restraining  performance of such obligations;
provided,  however,  that the Company must use its best efforts to have any such
order, decree or ruling lifted or otherwise overturned as soon as possible.

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

         Section 18.       Concerning the Rights Agent.

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

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


                                       27

<PAGE>



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

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

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

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

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

                  (b)  Whenever  in the  performance  of its  duties  under this
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter (including,  without limitation, the identity of any Acquiring Person and
the  determination  of "Fair  Market  Value")  be proved or  established  by the
Company prior to taking or suffering any action  hereunder,  such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed to be conclusively proved and established by a certificate signed by a
person  believed by the Rights  Agent to be the  Chairman  of the Board,  a Vice
Chairman of the Board,

                                       28

<PAGE>



the President,  a Vice President,  the Treasurer,  any Assistant Treasurer,  the
Secretary or an  Assistant  Secretary,  the Clerk or an  Assistant  Clerk of the
Company and delivered to the Rights Agent.  Any such  certificate  shall be full
authorization to the Rights Agent for any action taken or suffered in good faith
by it under the provisions of this Agreement in reliance upon such certificate.

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

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

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

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

                  (g) The Rights  Agent is hereby  authorized  and  directed  to
accept  instructions with respect to the performance of its duties hereunder and
certificates delivered pursuant to any provision hereof from any person believed
by the Rights  Agent to be the Chairman of the Board,  any Vice  Chairman of the
Board, the President, a Vice President, the Secretary or an Assistant Secretary,
the Clerk, an Assistant  Clerk,  the Treasurer or an Assistant  Treasurer of the
Company, and is authorized to apply to such officers for advice or

                                       29

<PAGE>



instructions in connection  with its duties,  and it shall not be liable for any
action  taken or  suffered  to be taken by it in good faith in  accordance  with
instructions  of any such  officer.  Any  application  by the  Rights  Agent for
written  instructions  from the Company may, at the option of the Rights  Agent,
set forth in writing  any action  proposed  to be taken or omitted by the Rights
Agent under this  Agreement  and the date on or after which such action shall be
taken or such omission shall be effective.  The Rights Agent shall not be liable
for any action taken by, or omission of, the Rights Agent in  accordance  with a
proposal  included in such  application  on or after the date  specified in such
application (which date shall not be less than five Business Days after the date
any officer of the Company actually receives such  application,  unless any such
officer shall have  consented in writing to an earlier  date)  unless,  prior to
taking any such action (or the effective  date in the case of an omission),  the
Rights  Agent  shall have  received  written  instructions  in  response to such
application specifying the action to be taken or omitted.

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

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

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

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

         Section 21. Change of Rights  Agent.  The Rights Agent or any successor
Rights Agent may resign and be discharged  from its duties under this  Agreement
upon  thirty (30) days'  notice in writing  mailed to the  Company,  and to each
transfer agent of the Common

                                       30

<PAGE>



Stock and the  Preferred  Stock,  by registered  or certified  mail,  and to the
holders of the Right  Certificates  by first-class  mail. The Company may remove
the Rights  Agent or any  successor  Rights  Agent (with or without  cause) upon
thirty (30) days'  notice in writing,  mailed to the Rights  Agent or  successor
Rights Agent, as the case may be, and to each transfer agent of the Common Stock
and Preferred  Stock by registered or certified  mail, and to the holders of the
Right  Certificates by first-class  mail. If the Rights Agent shall resign or be
removed or shall otherwise become incapable of acting, the Company shall appoint
a  successor  to the  Rights  Agent.  If the  Company  shall  fail to make  such
appointment  within a period of thirty  (30) days  after  giving  notice of such
removal  or  after  it has been  notified  in  writing  of such  resignation  or
incapacity by the resigning or incapacitated  Rights Agent or by the holder of a
Right Certificate (who shall, with such notice, submit his Right Certificate for
inspection by the Company),  then the incumbent  Rights Agent or the  registered
holder of any Right Certificate may apply to any court of competent jurisdiction
for the appointment of a new Rights Agent. Any successor  Rights Agent,  whether
appointed  by  the  Company  or by  such a  court,  shall  be (a) a  corporation
organized  and  doing  business  under the laws of the  United  States or of the
Commonwealth of Massachusetts or the State of New York (or of any other state of
the United States so long as such  corporation is authorized to do business as a
banking  institution in the  Commonwealth of  Massachusetts  or the State of New
York), in good standing,  which is authorized  under such laws to exercise stock
transfer or corporate  trust powers and is subject to supervision or examination
by federal or state  authority and which has at the time of its  appointment  as
Rights Agent a combined  capital and surplus of at least  $50,000,000  or (b) an
Affiliate  of a  corporation  described  in clause (a) of this  sentence.  After
appointment,  the  successor  Rights Agent shall be vested with the same powers,
rights, duties and responsibilities as if it had been originally named as Rights
Agent  without  further  act or deed;  but the  predecessor  Rights  Agent shall
deliver and transfer to the successor Rights Agent any property at the time held
by it hereunder, and execute and deliver any further assurance,  conveyance, act
or deed necessary for the purpose. Not later than the effective date of any such
appointment,  the  Company  shall  file  notice  thereof  in  writing  with  the
predecessor  Rights  Agent and each  transfer  agent of the Common Stock and the
Preferred Stock, and mail a notice thereof in writing to the registered  holders
of the Right  Certificates.  Failure  to give any  notice  provided  for in this
Section 21,  however,  or any defect  therein,  shall not affect the legality or
validity of the resignation or removal of the Rights Agent or the appointment of
the successor Rights Agent, as the case may be.

         Section 22. Issuance of New Right Certificates.  Notwithstanding any of
the provisions of this  Agreement or of the Rights to the contrary,  the Company
may, at its option, issue new Right Certificates  evidencing Rights in such form
as may be approved by its Board of Directors to reflect any adjustment or change
in the  Exercise  Price per  share and the  number or kind or class of shares of
stock or other securities or property  purchasable under the Right  Certificates
made in  accordance  with the  provisions  of this  Agreement.  In addition,  in
connection  with the  issuance or sale of shares of Common Stock  following  the
Distribution  Date and prior to the redemption or expiration of the Rights,  the
Company  (a) shall,  with  respect  to shares of Common  Stock so issued or sold
pursuant  to the  exercise  of stock  options  or  under  any  employee  plan or
arrangement, or upon the exercise, conversion or exchange of

                                       31

<PAGE>



securities  hereafter issued by the Company,  and (b) may, in any other case, if
deemed necessary or appropriate by the Board of Directors of the Company,  issue
Right  Certificates  representing the appropriate number of Rights in connection
with  such  issuance  or  sale;  provided,  however,  that  (i)  no  such  Right
Certificate  shall be issued if, and to the extent  that,  the Company  shall be
advised  by  counsel  that such  issuance  would  create a  significant  risk of
material  adverse  tax  consequences  to the  Company or the person to whom such
Right Certificate  would be issued,  and (ii) no such Right Certificate shall be
issued if, and to the extent that, appropriate  adjustments shall otherwise have
been made in lieu of the issuance thereof.

         Section 23.       Redemption and Termination.

                  (a) The Board of  Directors of the Company may, at its option,
redeem all but not less than all of the then outstanding  Rights at a redemption
price of $0.02 per Right,  subject to  adjustments  as provided in Section 23(d)
hereof (such redemption price being  hereinafter  referred to as the "Redemption
Price").  The Rights may be redeemed  only until the  earliest of (i) 5:00 p.m.,
Boston  time,  on the  tenth day after  the  Stock  Acquisition  Date,  (ii) the
declaration  by the Board of  Directors  that any Person is an  Adverse  Person,
(iii) the occurrence of a Section 13 Event, or (iv) the Final  Expiration  Date.
The Rights may not be redeemed at any time while there is an Acquiring Person or
an  Adverse  Person or at any time on or after  the date of a change  (resulting
from one or more proxy or consent  solicitations) in a majority of the directors
in office at the  commencement  of any such  solicitation if any Person who is a
participant in any such  solicitation is an Adverse Person or has stated (or, if
upon the commencement of such  solicitation a majority of the Board of Directors
of the  Company  has  determined  in good faith) that such Person (or any of its
Affiliates or Associates)  intends to take, or may consider  taking,  any action
which would result in such person  becoming an  Acquiring  Person or which would
cause the  occurrence  of a  Triggering  Event  unless  there are  Disinterested
Directors then in office and redemption of the Rights is authorized by the Board
of Directors, including at least a majority of the Disinterested Directors.

                  (b)  Immediately  upon the action of the Board of Directors of
the Company  ordering  the  redemption  of the  Rights,  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 the Rights  Agent and to all such
holders at their last  addresses as they appear upon the  registry  books of the
Rights Agent or, prior to the  Distribution  Date, on the registry  books of the
Transfer  Agent for the Common  Stock.  Any notice which is mailed in the manner
herein  provided shall be deemed given,  whether or not the holder  receives the
notice.  Each  such  notice of  redemption  will  state the  method by which the
payment of the Redemption Price will be made. Neither the Company nor any of its
Affiliates or Associates may redeem, acquire or purchase for value any Rights at
any time in any manner

                                       32

<PAGE>



other than that specifically set forth in this Section 23, or in connection with
the purchase,  acquisition  or redemption of shares of Common Stock prior to the
Distribution Date.

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

                  (d) In the event the Company  shall at any time after the date
of this  Rights  Agreement  (i) pay any  dividend  on Common  Stock in shares of
Common  Stock,  (ii)  subdivide  the  outstanding  shares of Common Stock into a
greater number of shares or (iii) combine the outstanding shares of Common Stock
into a smaller number of shares of the outstanding  shares of Common Stock, then
and in each such event the  Redemption  Price  after such event  shall equal the
Redemption Price immediately  prior to such event multiplied by a fraction,  the
numerator  of  which  is the  number  of  shares  of  Common  Stock  outstanding
immediately  prior to such event and the  denominator  of which is the number of
shares of Common  Stock  outstanding  immediately  after such  event;  provided,
however, that in each case such adjustment to the Redemption Price shall be made
only if the amount of the  Redemption  Price  shall be reduced or  increased  by
$0.002 per Right.

         Section 24.       Exchange.

                  (a) The Company may, only if there are Disinterested Directors
then in  office  and such  action  is  authorized  by the  Board  of  Directors,
including at least a majority of the Disinterested  Directors then in office, at
any time on or after the occurrence of a Section  11(a)(ii) Event,  exchange all
or part of the then outstanding and exercisable  Rights (which shall not include
Rights that have become void pursuant to the  provisions of Section 7(e) hereof)
for shares of Common Stock or Preferred Stock (or any combination thereof) at an
exchange ratio of one share of Common Stock or one  one-hundredth  of a share of
Preferred  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").

                  (b)  Immediately  upon the action 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 or one  one-hundredths  of a
share of Preferred  Stock (or any  combination  thereof)  equal to the number of
such Rights held by such holder  multiplied by the Exchange  Ratio.  The Company
shall  promptly give notice of any such  exchange in accordance  with Section 26
hereof;  provided,  however,  that the  failure to give,  or any defect in, such
notice  shall not affect the  validity  of such  exchange.  Each such  notice of
exchange  will  state the method by which the  exchange  of the shares of Common
Stock or  Preferred  Stock for Rights will be effected  and, in the event of any
partial  exchange,  the number of Rights  which will be  exchanged.  Any partial
exchange shall be effected pro rata based on the number of Rights

                                       33

<PAGE>



(other than Rights which have become void pursuant to the  provisions of Section
7(e) hereof) held by each holder of Rights.

         Section 25.       Notice of Certain Events.

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

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

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


                                       34

<PAGE>



                  Perini Corporation
                  73 Mt. Wayte Avenue
                  Framingham, Massachusetts  01701
                  Attention:  Corporate Secretary

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

                  State Street Bank and Trust Company
                  150 Royall Street
                  Canton, Massachusetts 02021
                  Attention: Rights Agent

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

         Section 27. Supplements and Amendments.  Prior to the Distribution Date
and subject to the penultimate  sentence of this Section 27, the Company and the
Rights Agent shall, if the Company so directs, supplement or amend any provision
of this  Agreement as the Company may deem  necessary  or desirable  without the
approval of any holders of  certificates  representing  shares of Common  Stock.
From and after the Distribution Date and subject to the penultimate  sentence of
this  Section  27, the  Company and the Rights  Agent  shall,  if the Company so
directs,  supplement or amend this Agreement  without the approval of any holder
of Right  Certificates  in order (i) to cure any  ambiguity,  (ii) to correct or
supplement any provision contained herein which may be defective or inconsistent
with any other provisions  herein,  (iii) to shorten or lengthen any time period
hereunder (which  shortening or lengthening shall be effective only if there are
Disinterested Directors then in office and shall require the concurrence of such
Disinterested  Directors if (A) such supplement or amendment  occurs at or after
the time a Person  becomes an Acquiring  Person or an Adverse Person or (B) such
supplement or amendment occurs on or after the date of a change  (resulting from
one or more proxy or consent  solicitations) in a majority of the directors then
in  office at the  commencement  of such  solicitation  if any  Person  who is a
participant in such solicitation is an Adverse Person or has stated (or, if upon
the commencement of such  solicitation,  a majority of the Board of Directors of
the  Company  has  determined  in good  faith)  that such  Person (or any of its
Affiliates or Associates)  intends to take, or may consider  taking,  any action
which would result in such Person  becoming an  Acquiring  Person or which would
cause the occurrence of a Triggering Event), or (iv) to change or supplement the
provisions  hereof  in any  manner  which  the  Company  may deem  necessary  or
desirable and which shall not  adversely  affect the interests of the holders of
Right Certificates (other than an Acquiring Person, an Adverse

                                       35

<PAGE>



Person or any Affiliate or Associate of such a Person); provided,  however, that
this  Agreement  may not be  supplemented  or amended to  lengthen,  pursuant to
clause (iii) of this sentence, (A) a time period relating to when the Rights may
be redeemed at such time as the Rights are not then  redeemable or (B) any other
time period unless such lengthening is for the purpose of protecting,  enhancing
or  clarifying  the rights of, and the benefits to, the holders of Rights.  Upon
the  delivery of such  certificate  from an  appropriate  officer of the Company
which states that the proposed supplement or amendment is in compliance with the
terms of this Section 27, the Rights  Agent shall  execute  such  supplement  or
amendment. Notwithstanding anything contained in this Agreement to the contrary,
no supplement or amendment shall be made on or after the Distribution Date which
changes the Redemption  Price,  the Final Expiration Date, the Exercise Price or
the number of one one-hundredths of a share of Preferred Stock for which a Right
is exercisable  or which affects any right vested in the Rights Agent.  Prior to
the  Distribution  Date,  the interests of the holders of Rights shall be deemed
coincident with the interests of the holders of Common Stock.

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

         Section 29.  Determinations and Actions by the Board of Directors.  For
all  purposes  of this  Agreement,  any  calculation  of the number of shares of
Common Stock  outstanding  at any  particular  time,  including  for purposes of
determining the particular percentage of such outstanding shares of Common Stock
of which any Person is the Beneficial  Owner,  shall be made in accordance  with
the last sentence of Rule  13d-3(d)(1)(i)  of the General Rules and  Regulations
under the Exchange  Act as in effect on the date hereof.  The Board of Directors
of the Company (with, where specifically provided for herein, the concurrence of
the  Disinterested  Directors)  shall have the exclusive  power and authority to
administer  this  Agreement  and to exercise all rights and powers  specifically
granted  to the  Board  (with,  where  specifically  provided  for  herein,  the
concurrence  of the  Disinterested  Directors)  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 a  determination  to redeem or not
redeem the Rights or to amend the  Agreement).  All such actions,  calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
of Directors (or, where  specifically  provided for herein, by the Disinterested
Directors)  in good  faith  shall (x) be final,  conclusive  and  binding on the
Company,  the Rights Agent, the holders of the Rights and all other parties, and
(y) not subject any member of the Board of Directors or any of the Disinterested
Directors to any liability to the holders of the Rights or to any other person.

         Section 30. Benefits of this Agreement. Nothing in this Agreement shall
be construed to give to any person or  corporation  other than the Company,  the
Rights Agent and the registered holders of the Right Certificates (and, prior to
the Distribution Date, the

                                       36

<PAGE>



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 Right 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 (including, if at the time of such determination, there
is an Acquiring  Person or an Adverse  Person,  a majority of the  Disinterested
Directors  then in office)  determines in its good faith  judgment that severing
the invalid  language from the Agreement would  adversely  affect the purpose or
effect of the Agreement,  the right of redemption set forth in Section 23 hereof
shall be  reinstated  and shall not expire  until the close of  business  on the
tenth day following the date of such determination by the Board of Directors.

         Section 32.  Governing Law. This  Agreement,  each Right and each Right
Certificate  issued  hereunder  shall be deemed to be a contract  made under the
laws of the Commonwealth of Massachusetts and for all purposes shall be governed
by and construed in accordance with the laws of such Commonwealth  applicable to
contracts to be made and to be performed entirely within Massachusetts.

         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.



                                       37

<PAGE>


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

[Corporate Seal]

                              PERINI CORPORATION


                              By:  /s/ David B. Perini
                                   -----------------------------
                                   Name:  David B. Perini
                                   Title: Chairman & Chief Executive Officer


[Corporate Seal]


                              STATE STREET BANK AND TRUST
                              COMPANY, as Rights Agent


                              By:  /s/Margaret Prentice
                                   -----------------------------
                                   Name:  Margaret Prentice  
                                   Title: Administration Manager 




                                       38
<PAGE>



                                                                      Exhibit A

                                     FORM OF
                  CERTIFICATE OF VOTE OF DIRECTORS ESTABLISHING
                    SERIES A JUNIOR PARTICIPATING CUMULATIVE
                                 PREFERRED STOCK

                                       of

                               PERINI CORPORATION

               Pursuant to General Laws, Chapter 156B, Section 26
                      of the Commonwealth of Massachusetts

         We, David B. Perini, President, and Patricia A. Kelly, Clerk, of Perini
Corporation, located at 73 Mt. Wayte Avenue, Framingham, Massachusetts 07101, do
hereby  certify that at a meeting of the  directors of the  corporation  held on
September 23, 1988, the following vote  establishing and designating a series of
a class of stock and determining  relative  rights and  preferences  thereof was
duly adopted.

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

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

         Section 2.  Dividends and Distributions.

         (A) (i) The  holders  of shares of Series A  Preferred  Stock  shall be
entitled to receive,  when,  as and if declared by the Board of Directors out of
funds legally available for the purpose,  quarterly dividends payable in cash on
the first day of March,  June,  September  and  December in each year (each such
date  being  referred  to  herein  as  a  "Quarterly  Dividend  Payment  Date"),
commencing on the first Quarterly Dividend Payment Date after the first issuance
of a share or fraction of a share of Series A Preferred  Stock, in an amount per
share  (rounded to the  nearest  cent) equal to the greater of (a) $20.00 or (b)
subject to the provision for  adjustment  hereinafter  set forth,  100 times the
aggregate  per share amount of all cash  dividends,  and 100 times the aggregate
per  share  amount  (payable  in  kind)  of  all  non-cash  dividends  or  other
distributions  other  than a  dividend  payable  in shares of Common  Stock or a
subdivision of the outstanding  shares of Common Stock (by  reclassification  or
otherwise),  declared on the Common  Stock,  par value  $1.00 per share,  of the
Corporation (the "Common


<PAGE>



Stock") since the immediately  preceding  Quarterly  Dividend  Payment Date, or,
with  respect to the first  Quarterly  Dividend  Payment  Date,  since the first
issuance of any share or fraction  of a share of Series A Preferred  Stock.  The
multiple of cash and  non-cash  dividends  declared on the Common Stock to which
holders  of the  Series A  Preferred  Stock  are  entitled,  which  shall be 100
initially but which shall be adjusted from time to time as hereinafter provided,
is  hereinafter  referred  to as  the  "Dividend  Multiple".  In the  event  the
Corporation shall at any time after September 23, 1988 (the "Rights  Declaration
Date")  declare or pay any dividend on Common Stock  payable in shares of Common
Stock,  or  effect  a  subdivision  or  combination  or   consolidation  of  the
outstanding  shares of Common Stock (by  reclassification  or otherwise  than by
payment of a dividend in shares of Common Stock) into a greater or lesser number
of  shares  of  Common  Stock,  then in each  such  case the  Dividend  Multiple
thereafter  applicable  to the  determination  of the amount of dividends  which
holders of shares of Series A Preferred Stock shall be entitled to receive shall
be the Dividend Multiple  applicable  immediately prior to such event multiplied
by a fraction,  the  numerator  of which is the number of shares of Common Stock
outstanding  immediately  after such event and the  denominator  of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

                  (ii) Notwithstanding anything else contained in this paragraph
(A), the  Corporation  shall,  out of funds legally  available for that purpose,
declare a dividend or  distribution  on the Series A Preferred Stock as provided
in this paragraph (A)  immediately  after it declares a dividend or distribution
on the Common Stock (other than a dividend  payable in shares of Common  Stock);
provided that, in the event no dividend or distribution shall have been declared
on the Common Stock during the period  between any  Quarterly  Dividend  Payment
Date and the next  subsequent  Quarterly  Dividend  Payment  Date, a dividend of
$20.00 per share on the Series A Preferred Stock shall  nevertheless be paid out
of funds legally available for the purpose on such subsequent Quarterly Dividend
Payment Date.

         (B) Dividends  shall begin to accrue and be  cumulative on  outstanding
shares of Series A Preferred Stock from the Quarterly Dividend Payment Date next
preceding the date of issue of such shares of Series A Preferred  Stock,  unless
the date of issue of such  shares  is  prior to the  record  date for the  first
Quarterly  Dividend  Payment Date, in which case  dividends on such shares shall
begin to accrue  from the date of issue of such  shares,  or unless  the date of
issue is a Quarterly  Dividend  Payment  Date or is a date after the record date
for the  determination of holders of shares of Series A Preferred Stock entitled
to receive a quarterly dividend and before such Quarterly Dividend Payment Date,
in either of which events such dividends shall begin to accrue and be cumulative
from such Quarterly  Dividend  Payment Date.  Accrued but unpaid dividends shall
not bear interest.  Dividends paid on the shares of Series A Preferred  Stock in
an amount less than the total  amount of such  dividends at the time accrued and
payable on such shares shall be  allocated  pro rata on a  share-by-share  basis
among all such shares at the time outstanding.  The Board of Directors may fix a
record  date for the  determination  of holders of shares of Series A  Preferred
Stock  entitled  to  receive  payment  of a dividend  or  distribution  declared
thereon, which record date shall be no more than 60 days prior to the date fixed
for the payment thereof.

         Section 3.  Voting  Rights.  In  addition  to any other  voting  rights
required by law, the

                                       2
<PAGE>



holders of shares of Series A Preferred  Stock shall have the  following  voting
rights:

         (A) Subject to the provision for adjustment hereinafter set forth, each
share of Series A Preferred  Stock shall entitle the holder thereof to 100 votes
on all matters  submitted to a vote of the stockholders of the Corporation.  The
number  of votes  which a  holder  of a share of  Series  A  Preferred  Stock is
entitled to cast, as the same may be adjusted  from time to time as  hereinafter
provided,  is hereinafter  referred to as the "Vote Multiple".  In the event the
Corporation shall at any time after the Rights  Declaration Date (i) declare any
dividend on Common Stock payable in shares of Common Stock,  (ii)  subdivide the
outstanding  Common Stock, or (iii) combine the outstanding  Common Stock into a
smaller  number of shares,  then in each such case the Vote Multiple  thereafter
applicable  to the  determination  of the  number  of votes  per  share to which
holders of shares of Series A Preferred  Stock  shall be  entitled  shall be the
Vote  Multiple  immediately  prior to such event  multiplied  by a fraction  the
numerator  of  which  is the  number  of  shares  of  Common  Stock  outstanding
immediately  after  such  event and the  denominator  of which is the  number of
shares of Common Stock that were outstanding immediately prior to such event.

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

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

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

                                       3
<PAGE>



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

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

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

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

                                       4
<PAGE>



         Section 4.  Certain Restrictions.

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

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

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

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

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

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

         Section 5.  Reacquired  Shares.  Any shares of Series A Preferred Stock
purchased or

                                       5
<PAGE>



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

         Section 6.  Liquidation,  Dissolution or Winding Up. Upon any voluntary
liquidation, dissolution or winding up of the Corporation, no distribution shall
be made (x) to the  holders  of shares of stock  ranking  junior  (either  as to
dividends  or upon  liquidation,  dissolution  or  winding  up) to the  Series A
Preferred  Stock  unless,  prior  thereto,  the  holders  of  shares of Series A
Preferred  Stock  shall have  received  an amount  equal to  accrued  and unpaid
dividends and  distributions  thereon,  whether or not declared,  to the date of
such payment, plus an amount equal to the greater of (1) $10,000.00 per share or
(2) an  aggregate  amount per share,  subject to the  provision  for  adjustment
hereinafter set forth, equal to 100 times the aggregate amount to be distributed
per share to holders of Common  Stock,  or (y) to the holders of any other class
or  series  of  stock  ranking  on a  parity  (either  as to  dividends  or upon
liquidation,  dissolution  or  winding  up) with the Series A  Preferred  Stock,
except  distributions made ratably on the Series A Preferred Stock and all other
such parity stock in proportion to the total amounts to which the holders of all
such shares are entitled upon such  liquidation,  dissolution  or winding up. In
the event the  Corporation  shall at any time  declare  or pay any  dividend  on
Common  Stock  payable in shares of Common  Stock,  or effect a  subdivision  or
combination  or  consolidation  of the  outstanding  shares of Common  Stock (by
reclassification  or otherwise than by payment of a dividend in shares of Common
Stock) into a greater or lesser number of shares of Common  Stock,  then in each
such case the aggregate  amount to which holders of shares of Series A Preferred
Stock were entitled  immediately prior to such event under the proviso in clause
(x) of the preceding  sentence shall be adjusted by multiplying such amount by a
fraction  the  numerator  of which is the  number  of  shares  of  Common  Stock
outstanding  immediately  after such event and the  denominator  of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

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

         Section 7.  Consolidation,  Merger,  etc. In case the Corporation shall
enter into any consolidation,  merger, combination or other transaction in which
the shares of Common  Stock are  exchanged  for or changed  into other  stock or
securities,  cash or any other  property,  then in any such  case the  shares of
Series A  Preferred  Stock  shall at the same  time be  similarly  exchanged  or
changed  into an amount  per share  (subject  to the  provision  for  adjustment
hereinafter  set  forth)  equal to 100  times  the  aggregate  amount  of stock,
securities,  cash or any other property  (payable in kind),  as the case may be,
into which or for which each share of Common Stock is changed or exchanged, plus
accrued  and unpaid  dividends,  if any,  payable  with  respect to the Series A
Preferred  Stock. In the event the Corporation  shall at any time declare or pay
any dividend on Common Stock payable in shares of Common Stock, or effect

                                       6
<PAGE>



a subdivision or  combination  or  consolidation  of the  outstanding  shares of
Common Stock (by  reclassification or otherwise than by payment of a dividend in
shares of Common  Stock)  into a  greater  or lesser  number of shares of Common
Stock,  then in each such case the  amount set forth in the  preceding  sentence
with  respect to the  exchange or change of shares of Series A  Preferred  Stock
shall be adjusted by  multiplying  such amount by a fraction  the  numerator  of
which is the number of shares of Common Stock outstanding immediately after such
event and the  denominator of which is the number of shares of Common Stock that
were outstanding immediately prior to such event.

         Section 8.  Redemption.

         (A) For  purposes  of this  Section  8, the  following  terms  have the
meanings indicated:

                  (i) "Acquiring  Person" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates (as such term is
hereinafter  defined) and Associates  (as such term is  hereinafter  defined) of
such Person, shall be the Beneficial Owner (as such term is hereinafter defined)
of 20% or more of the  shares of Common  Stock then  outstanding,  but shall not
include the Corporation, any subsidiary of the Corporation, any employee benefit
plan of the  Corporation or any subsidiary  thereof or any entity holding shares
of Common Stock  organized,  appointed or established by the  Corporation or any
subsidiary thereof for or pursuant to the terms of any such plan.

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

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

                           (a)  which  such  Person  or  any  of  such  Person's
         Affiliates or Associates  beneficially owns, directly or indirectly (as
         determined  pursuant to Rule 13d-3 of the General Rules and Regulations
         under the Exchange Act) or has the right to dispose of;

                           (b)  which  such  Person  or  any  of  such  Person's
         Affiliates  or  Associates  has (A) the right to acquire  (whether such
         right is exercisable immediately or 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 (other than rights initially  exercisable for Series A Preferred
         Stock),  warrants or options, or otherwise;  provided,  however, that a
         Person  shall  not  be  deemed  the   "Beneficial   Owner"  of,  or  to
         "beneficially  own,"  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) the  right  to vote  pursuant  to any  agreement,
         arrangement  or  understanding  (whether or not in writing);  provided,
         however, that a Person shall not be deemed the "Beneficial

                                       7
<PAGE>



         Owner" of, or to "beneficially own," any security under this clause (B)
         if the agreement,  arrangement or  understanding  to vote such security
         (1) arises solely from a revocable  proxy given in response to a public
         proxy or consent solicitation made pursuant to, and in accordance with,
         the applicable rules and regulations of the Exchange Act and (2) is not
         also then  reportable by such person on Schedule 13D under the Exchange
         Act (or any comparable or successor report); or

                           (c)  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  clause  (B)  of
         subparagraph   (b)  of  this  paragraph  (iii))  or  disposing  of  any
         securities of the Corporation.

                  (iv) "Disinterested Director" shall mean (A) any member of the
Corporation's  Board of  Directors  who is not an  officer  or  employee  of the
Corporation or any of its  subsidiaries and who is not an Acquiring Person or an
Affiliate  or an  Associate  of an  Acquiring  Person or nominee of an Acquiring
Person or any such Affiliate or Associate and was a member of the  Corporation's
Board of Directors prior to the Rights  Declaration Date, and (B) any Person who
subsequently  becomes a member of the Company's Board of Directors who is not an
Acquiring  Person or an Affiliate  or an  Associate  of an  Acquiring  Person or
nominee of an  Acquiring  Person or any such  Affiliate  or  Associate,  if such
Person's   nomination  is   recommended   or  approved  by  a  majority  of  the
Disinterested Directors.

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

         (B)  Subject  to Section 4 hereof,  the  Corporation  may,  at any time
(unless otherwise prevented by law) by the affirmative vote of a majority of the
directors  then in  office,  including,  if at the time of such vote there is an
Acquiring Person, a majority of the Disinterested  Directors,  redeem all or any
portion of the Series A Preferred Stock then  outstanding.  The amount per share
of Series A Preferred  Stock to be redeemed to be paid upon any such  redemption
shall be equal to $10,000.00 plus accrued and unpaid dividends,  if any, payable
with  respect  thereto.  The total sum  payable  per share of Series A Preferred
Stock on the date on which  the  Corporation  redeems  any  shares  of  Series A
Preferred  Stock  (the  "Redemption  Date") is  hereinafter  referred  to as the
"Redemption Price."

         (C) If less than all of the  outstanding  shares of Series A  Preferred
Stock are to be redeemed, the Corporation shall select the shares to be redeemed
by lot.  Notice  of  redemption  pursuant  to this  Section  8 shall  be sent by
first-class  mail,  postage  prepaid,  to the holders of record of the shares of
Series A Preferred  Stock to be redeemed at their  respective  addresses  as the
same shall appear on the books of the  Corporation.  Such notice shall be mailed
not less than 30 nor more than 60 days in advance of the  applicable  Redemption
Date and shall specify the Redemption  Date, the Redemption  Price and the place
at which payment may be obtained as to such shares.  At any time on or after the
Redemption Date applicable thereto, the holders

                                       8
<PAGE>



of  record  of  shares  of  Series  A  Preferred  Stock to be  redeemed  on such
Redemption Date shall be entitled to receive the Redemption  Price therefor upon
actual delivery to the Corporation or its agent of the certificates representing
the shares to be redeemed.

         If such notice of redemption  shall have been duly given,  and if on or
before any Redemption Date the funds necessary for such redemption  (taking into
account any  conversions)  shall have been deposited by the  Corporation  with a
bank or trust company  designated  by the Board of Directors and having  capital
and  surplus of at least  $50,000,000  in trust for the pro rata  benefit of the
holders of the  shares of Series A  Preferred  Stock so called  for  redemption,
then,  notwithstanding  that any  certificate  for shares of Series A  Preferred
Stock so called for redemption shall not have been surrendered for cancellation,
from and after such  Redemption  Date (unless there shall have been a default in
payment  of the  Redemption  Price) all  shares of Series A  Preferred  Stock so
called for redemption shall no longer be deemed to be outstanding and all rights
with respect to such shares shall forthwith cease and terminate, except only the
right of the holders  thereof to receive  from such bank or trust  company  upon
surrender of their  certificate  or  certificates  at any time after the time of
such deposit the funds so deposited,  without interest. The balance of any funds
so  deposited  and  unclaimed at the end of one year from such  Redemption  Date
shall be released or repaid to the  Corporation,  after which the holders of the
shares so called for redemption  shall look only to the  Corporation for payment
thereof, without interest.

         Section 9.  Ranking.  Unless  otherwise  provided  in the  Articles  of
Organization   of  the  Corporation  or  a  Certificate  of  Vote  of  Directors
Establishing  a Class of Stock relating to a  subsequently-designated  series of
Preferred  Stock of the  Corporation,  the Series A  Preferred  Stock shall rank
junior to the Corporation's $21.25 Convertible  Exchangeable Preferred Stock and
any other  series of the  Corporation's  Preferred  Stock,  as to the payment of
dividends and the distribution of assets on liquidation,  dissolution or winding
up and and shall rank senior to the Common Stock.

         Section 10. Amendment.  The Articles of Organization of the Corporation
and this  Certificate  of Vote shall not be amended  in any manner  which  would
materially  alter or change the  powers,  preferences  or special  rights of the
Series A Preferred  Stock so as to affect them adversely  (within the meaning of
Section  77 of Chapter  156B of the  Massachusetts  General  Laws)  without  the
affirmative vote of the holders of two-thirds or more of the outstanding  shares
of Series A Preferred Stock, voting separately as a class.

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

         IN WITNESS WHEREOF AND UNDER THE PENALTIES OF PERJURY, we have hereunto
signed our names this 23rd day of September in the year 1988.



                                       9
<PAGE>



                                      President




                                      Clerk





                                       10



                                                                     Exhibit  B

                           [Form of Right Certificate]


Certificate No. R-                                           ____________ Rights
 

NOT  EXERCISABLE  AFTER  JANUARY 21, 2007 OR EARLIER IF NOTICE OF  REDEMPTION IS
GIVEN.  THE RIGHTS ARE SUBJECT TO REDEMPTION,  AT THE OPTION OF THE COMPANY,  AT
$0.02 PER RIGHT ON THE TERMS SET FORTH IN THE RIGHTS  AGREEMENT.  [UNDER CERTAIN
CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING PERSON (AS SUCH TERM IS
DEFINED IN THE RIGHTS  AGREEMENT) AND ANY  SUBSEQUENT  HOLDER OF SUCH RIGHTS MAY
BECOME NULL AND VOID].  (THE RIGHTS  REPRESENTED BY THIS CERTIFICATE ARE OR WERE
BENEFICIALLY  OWNED BY A PERSON  WHO WAS OR  BECAME  AN  ACQUIRING  PERSON OR AN
ASSOCIATE OR AFFILIATE OF AN ACQUIRING  PERSON (AS SUCH TERMS ARE DEFINED IN THE
RIGHTS AGREEMENT).  THIS RIGHT CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY
BECOME VOID UNDER  CERTAIN  CIRCUMSTANCES  AS  SPECIFIED  IN SECTION 7(6) OF THE
RIGHTS AGREEMENT.]


                                                Right Certificate

                                                PERINI 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
Shareholder  Rights  Agreement  dated as of September  23, 1988,  as amended and
restated as of May 17, 1990,  as further  amended and restated as of January 17,
1997 (the  "Rights  Agreement")  between  Perini  Corporation,  a  Massachusetts
corporation (the "Company"),  and The First National Bank of Boston (the "Rights
Agent"),  to purchase from the Company at any time after the  Distribution  Date
(as such term is  defined  in the  Rights  Agreement)  and prior to the close of
business  on January  21,  2007 at the  office or  offices  of the Rights  Agent
designated  for  such  purpose,   or  its   successors  as  Rights  Agent,   one
one-hundredth of a share of a fully paid,  non-assessable  share of the Series A
Junior  Participating  Cumulative Preferred Stock (the "Preferred Stock") of the
Company,  at a purchase price of $________ per one one-hundredth of a share (the
"Exercise Price"), upon presentation and surrender of this Right

                                        1

<PAGE>



Certificate  with the Form of Election to Purchase  and the related  Certificate
duly executed. The number of Rights evidenced by this Right Certificate (and the
number of shares which may be purchased upon exercise  thereof) set forth above,
and the Exercise  Price per share set forth  above,  are the number and Exercise
Price as of January 17, 1997,  based on the Preferred  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 Right 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 a Acquiring  Person, or an Affiliate or
Associate of an Acquiring Person,  such Rights shall become null and void and no
holder  hereof  shall have any right with  respect to such Rights from and after
the occurrence of such Section 11(a)(ii) Event.

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

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


                                        2

<PAGE>



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

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this  Certificate may be redeemed by the Board of Directors of the Company at
its option at a  redemption  price of $0.02 per Right  (payable in cash,  Common
Stock or other consideration deemed appropriate by the Board of Directors).

         No  fractional  shares of stock will be issued upon the exercise of any
Right or Rights  evidenced  hereby  (other  than  fractions  which are  integral
multiples of one one-hundredth of a share of Preferred Stock,  which may, at the
election of the  Company,  be  evidenced by  depositary  receipts),  but in lieu
thereof a cash payment will be made, as provided in the Rights Agreement.

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


                                        3

<PAGE>



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

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

[Corporate Seal]                  PERINI CORPORATION

Attested:                         By___________________________
                                    Name:
                                    Title: [Chairman, President
By________________________                 or Vice President]
[Clerk or Assistant Clerk]


Countersigned:                    _____________________________
                                  Name:
THE FIRST NATIONAL BANK OF        Title: [Treasurer or
  BOSTON, as Rights Agent            Assistant Treasurer]


- --------------------------
Authorized Signature


                                        4

<PAGE>



                   [Form of Reverse Side of Right Certificate]

                               FORM OF ASSIGNMENT


FOR VALUE RECEIVED_____________________________________________
hereby sells, assigns and transfers unto

- ---------------------------------------------------------------
(Please print name and address of transferee)

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

Dated: _______________, 19__

                                          ----------------------------
                                          Signature


Signature Guaranteed:________________________


                                   CERTIFICATE

         The  undersigned  hereby  certifies by checking the  appropriate  boxes
that:

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

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

Dated: _____________, 19__                  _____________________________
                                            Signature

                                        5

<PAGE>



                                     NOTICE


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


                                        6

<PAGE>



                          FORM OF ELECTION TO PURCHASE

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

To PERINI CORPORATION:

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

Please insert social security
or other identifying number: ___________________________________


- ----------------------------------------------------------------
                         (Please print name and address)

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


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

Please insert social security
or other identifying number:____________________________________


- ----------------------------------------------------------------
                         (Please print name and address)
- ----------------------------------------------------------------

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

Dated: ______________, 19__
                                             -----------------------------
                                             Signature

Signature Guaranteed:_______________________

                                        7

<PAGE>


                                   CERTIFICATE


         The  undersigned  hereby  certifies by checking the  appropriate  boxes
that:

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

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


Dated:_________________, 19__              _____________________________
                                           Signature

                                     NOTICE

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





                                        8
<PAGE>
                                                                      Exhibit C

                  SUMMARY OF RIGHTS TO PURCHASE PREFERRED STOCK


         On  September  23, 1988,  the Board of Directors of Perini  Corporation
(the "Company") declared a dividend distribution of one Preferred Stock Purchase
Right for each outstanding  share of Common Stock of the Company to stockholders
of record at the close of business on October 6, 1988.  Each Right  entitles the
registered  holder  to  purchase  from  the  Company  a unit  consisting  of one
one-hundredth of a share (a "Unit") of Series A Junior Participating  Cumulative
Preferred  Stock, par value $1.00 per share (the "Preferred  Stock"),  at a cash
Exercise Price of $100.00 per Unit,  subject to adjustment.  The description and
terms of the Rights are set forth in a Shareholder  Rights Agreement dated as of
September  23,  1988,  as amended and  restated as of May 17,  1990,  as further
amended  and  restated  as of January  17,  1997,  between the Company and State
Street Bank and Trust Company, as Rights Agent.

         Initially,  the Rights will not be exercisable  and will be attached to
all outstanding  shares of Common Stock. No separate Right  Certificates will be
distributed  until the  Distribution  Date.  The Rights will  separate  from the
Common  Stock and the  Distribution  Date will occur upon the earliest of (i) 10
days  following a public  announcement  that a person or group of  affiliated or
associated  persons  (other than the Company and certain of its  affiliates  and
other  exempted  persons)  (an  "Acquiring   Person")  has  acquired  beneficial
ownership of 10% or more of the outstanding  shares of Common Stock (the date of
said announcement  being referred to as the "Stock Acquisition  Date"),  (ii) 10
business days  following the  commencement  of a tender offer or exchange  offer
that would result in a person or group becoming an Acquiring Person or (iii) the
declaration by the Board of Directors that any person is an "Adverse Person."

         For the purpose of determining  whether PB Capital Partners,  L.P. ("PB
Capital  Partners"),  The Union Labor Life  Insurance  Company  ("ULLICO"),  The
Common Fund for Non-Profit  Organizations ("The Common Fund"), Richard C. Blum &
Associates,  L.P. ("RCBA"), Ronald N. Tutor ("Tutor"),  Tutor-Saliba Corporation
("Tutor-Saliba") or any of their respective  affiliated or associated persons is
an Acquiring Person, none of such persons will be deemed to beneficially own (i)
any shares of Series B  Cumulative  Convertible  Preferred  Stock (the "Series B
Preferred  Stock")  of the  Company  issued or  issuable  pursuant  to the Stock
Purchase and Sale  Agreement by and among the Company,  PB Capital  Partners and
RCBA,  dated as of July 24,  1996,  as amended  (the  "Stock  Purchase  and Sale
Agreement"),  including shares issued or issuable as payment-in-kind  dividends,
(ii) any shares of the Common Stock issued or issuable  upon the  conversion  of
such shares of Series B Preferred Stock, (iii) any shares of Common Stock issued
or issuable pursuant to the  Participation  Agreement by and between the Company
and PB Capital  Partners  dated as of  November  4, 1996,  or (iv) any shares of
Common Stock issued or issuable to Tutor upon exercise of a certain stock option
granted to Tutor on January 17, 1997.

         For the purpose of  determining  whether a Stock  Acquisition  Date has
occurred,   PB  Capital  Partners,   ULLICO,   The  Common  Fund,  RCBA,  Tutor,
Tutor-Saliba and their

                                        1

<PAGE>



respective affiliated and associated persons, will be deemed not to beneficially
own (i) any shares of Series B Preferred Stock of the Company issued or issuable
pursuant to the Stock Purchase and Sale  Agreement,  including  shares issued as
payment-in-kind  dividends,  (ii) any  shares  of the  Common  Stock  issued  or
issuable upon the conversion of such shares of Series B Preferred  Stock,  (iii)
any shares of Common  Stock  issued or issuable  pursuant  to the  Participation
Agreement  by and  between  the  Company  and PB  Capital  Partners  dated as of
November 4, 1996, or (iv) any shares of Common Stock issued or issuable to Tutor
upon exercise of a certain stock option granted to Tutor on January 17, 1997.

         The Board of Directors  could declare a person to be an Adverse  Person
after  (1) a  determination  that  such  person,  alone  or  together  with  its
affiliates and associates, has become the beneficial owner of 10% or more of the
outstanding  shares of  Common  Stock  and (2) a  determination  by the Board of
Directors,   after  reasonable   inquiry  and   investigation,   including  such
consultation,   if  any,  with  such  persons  as  such  directors   shall  deem
appropriate,  that (a) such  beneficial  ownership by such person is intended to
cause, is reasonably likely to cause or will cause the Company to repurchase the
Common  Stock  beneficially  owned by such  person or to cause  pressure  on the
Company to take  action or enter into a  transaction  or series of  transactions
which  would  provide  such  person  with   short-term   financial   gain  under
circumstances  where the Board of Directors  determines  that the best long-term
interests of the Company and its stockholders,  but for the actions and possible
actions of such  person,  would not be served by taking  such action or entering
into  such  transaction  or  series  of  transactions  at that  time or (b) such
beneficial  ownership  is  causing or is  reasonably  likely to cause a material
adverse impact (including, but not limited to, impairment of relationships with
customers or  impairment of the  Company's  ability to maintain its  competitive
position) on the business or prospects of the Company;  provided,  however, that
the Board of  Directors of the Company may not declare a person to be an Adverse
Person if, prior to the time that such person acquired 10% or more of the shares
of Common Stock then outstanding, such person provided to the Board of Directors
in writing a statement of such  person's  purpose and  intentions  in connection
with  the  proposed  acquisition  of  Common  Stock,  together  with  any  other
information  reasonably requested of such person by the Board of Directors,  and
the Board of Directors,  based on such statement and such reasonable inquiry and
investigation,  including  such  consultation,  if any, with such persons as the
directors shall deem appropriate,  determines to notify and notifies such person
in writing that it will not declare such person to be Adverse  Person;  provided
further,  that the Board of Directors  may  expressly  condition in any manner a
determination  not to declare a person an Adverse  Person on such  conditions as
the Board of Directors may select,  including  without  limitation such person's
not acquiring more than a specified  amount of stock and/or on such person's not
taking actions  inconsistent with the purposes and intentions  disclosed by such
person in the statement provided to the Board of Directors.  No delay or failure
by the Board of Directors  to declare a person to be an Adverse  Person shall in
any  way  waive  or  otherwise  affect  the  power  of the  Board  of  Directors
subsequently to declare a person to be an Adverse Person.  In the event that the
Board of Directors  should at any time determine,  upon  reasonable  inquiry and
investigation,

                                        2

<PAGE>



including   consultation   with  such  persons  as  the  directors   shall  deem
appropriate,  that  such  person  has not met or  complied  with  any  condition
specified  by the Board of  Directors,  the Board of  Directors  may at any time
thereafter declare the person to be an Adverse Person.

         The Board of Directors may not declare any of the following entities an
Adverse Person: PB Capital Partners,  ULLICO,  The Common Fund, RCBA, Tutor, and
Tutor-Saliba,  and their respective  affiliated persons.  Any person that, on or
after January 17, 1997, was a limited  partner of PB Capital  Partners,  will be
deemed to be an  affiliated  person  of PB  Capital  Partners  for so long as PB
Capital Partners continues in existence and such person beneficially owns Common
Stock solely by virtue of its  ownership  of an interest in PB Capital  Partners
and/or of Common Stock beneficially owned by it prior to January 17, 1997.

         Until the Distribution Date (or earlier redemption or expiration of the
Rights),  (a) the Rights will be evidenced by the Common Stock  certificates and
will be transferred with and only with such Common Stock  certificates,  (b) new
Common Stock  certificates  issued after October 6, 1988 will contain a notation
incorporating  the  Shareholder  Rights  Agreement  by  reference,  and  (c) the
surrender for transfer of any certificates for Common Stock will also constitute
the transfer of the Rights  associated with the Common Stock represented by such
certificate.

         The Rights are not  exercisable  until the  Distribution  Date and will
expire at the close of business on January 21, 2007, unless previously  redeemed
by the Company as described below.

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

         In the  event  that a Stock  Acquisition  Date  occurs  or the Board of
Directors  determines that a person is an Adverse Person,  proper provision will
be made so that each holder of a Right will thereafter have the right to receive
upon  exercise that number of Units of Preferred  Stock of the Company  having a
market  value of two times the  exercise  price of the Right  (such  right being
referred  to as the  "Subscription  Right").  In the  event  that,  at any  time
following the Stock Acquisition Date, (i) the Company is acquired in a merger or
other  business  combination  transaction  or (ii) 50% or more of the  Company's
assets or earning power is sold,  each holder of a Right shall  thereafter  have
the right to receive,  upon  exercise,  common  stock of the  acquiring  company
having a market value equal to two times the  exercise  price of the Right (such
right  being  referred  to as the  "Merger  Right").  The holder of a Right will
continue to have the Merger Right  whether or not such holder has  exercised the
Subscription  Right.  Rights that are or were beneficially owned by an Acquiring
Person or an Adverse  Person may (under certain  circumstances  specified in the
Shareholder Rights Agreement) become null and void.

                                        3

<PAGE>



         At any time  after a Stock  Acquisition  Date  occurs  or the  Board of
Directors  determines that a person is an Adverse Person, the Board of Directors
may,  at its  option,  exchange  all or any  part of the  then  outstanding  and
exercisable  Rights for shares of Common Stock or Units of Preferred Stock at an
exchange  ratio of one share of Common Stock or one Unit of Preferred  Stock per
Right.

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

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

         Any of  the  provisions  of the  Shareholder  Rights  Agreement  may be
amended  by the  Board of  Directors  of the  Company  at any time  prior to the
Distribution  Date. From and after the Distribution Date, the Board of Directors
of the  Company  may,  subject to certain  limitations  specified  in the Rights
Agreement,  amend  the  Rights  Agreement  to  cure  any  ambiguity,  defect  or
inconsistency,  to  shorten  or  lengthen  any  time  period  under  the  Rights
Agreement,  or to make other changes that do not adversely  affect the interests
of the Rights  holders  (excluding the interests of Acquiring  Persons,  Adverse
Persons or their Affiliates or Associates).

         The Rights may be  redeemed  in whole,  but not in part,  at a price of
$0.02 per Right  (payable in cash,  Common Stock or other  consideration  deemed
appropriate  by the Board of  Directors)  by the Board of  Directors at any time
prior to the date on which a person is  declared  to be an Adverse  Person,  the
tenth day after the Stock  Acquisition Date or the occurrence of an event giving
rise to the Merger Right.  Immediately upon the action of the Board of Directors
ordering  redemption of the Rights, the Rights will terminate and thereafter the
only right of the holders of Rights will be to receive the redemption price.

         Until a Right  is  exercised,  the  holder  will  have no  rights  as a
stockholder of the Company (beyond those as an existing stockholder),  including
the right to vote or to receive

                                        4

<PAGE>


dividends.  While  the  distribution  of  the  Rights  will  not be  taxable  to
stockholders  or  to  the  Company,   stockholders   may,   depending  upon  the
circumstances,  recognize  taxable  income in the event that the  Rights  become
exercisable for Preferred Stock (or other  consideration)  of the Company or for
common stock of an acquiring company as set forth above.

         A copy of the  Shareholder  Rights  Agreement dated as of September 23,
1988,  as amended  and  restated  as of May 17,  1990,  as further  amended  and
restated as of January 17, 1997, has been filed with the Securities and Exchange
Commission as an Exhibit to a  Registration  Statement on Form 8-A/A.  A copy of
the Shareholder  Rights  Agreement is available free of charge from the Company.
This  summary  description  of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Shareholder Rights Agreement.





                                        5






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