PERINI CORP
SC 13D/A, 1996-12-18
GENERAL BLDG CONTRACTORS - NONRESIDENTIAL BLDGS
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                  SCHEDULE 13D
                               (AMENDMENT NO. 1)

                   UNDER THE SECURITIES EXCHANGE ACT OF 1934


                               PERINI CORPORATION
                               ------------------
                                (Name of Issuer)

                                COMMON STOCK and
                SERIES B CUMULATIVE CONVERTIBLE PREFERRED STOCK
                -----------------------------------------------
                         (Title of Class of Securities)

                                    713839108         
                               ------------------
                                 (CUSIP Number)


                              Eric R. Markus, Esq.
                           Wilmer, Cutler & Pickering
                              2445 M Street, N.W.
                             Washington, D.C. 20037
                             ----------------------
 (Name, Address and Telephone Number of Person Authorized to Receive Notices
                             and Communications)

            (Date of Event which Requires Filing of this Statement)

                               December 13, 1996
                               -----------------
If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Check the following box is a fee is being paid with the statement [ ].  (A fee
is not required only if the reporting person: (1) has a previous statement on
file reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7).

NOTE:  Six copies of this statement, including all exhibits, should be filed
with the Commission.  See Rule 13d-1(a) for other parties to whom copies are to
be sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).
<PAGE>   2
                                  SCHEDULE 13D


<TABLE>
 <S>                                                                                       <C>
 CUSIP NO.     713839108                                                                   PAGE 2 OF 10 PAGES
           -----------------                                                                                 
- ----------------------------------------------------------------------------------------------------------------------------
 1      NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

           PB CAPITAL PARTNERS, L.P  94-3248865

- ----------------------------------------------------------------------------------------------------------------------------
 2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                                                 (a) [X]+
                                                                                                                 (b) [X]+

- ----------------------------------------------------------------------------------------------------------------------------
 3      SEC USE ONLY


- ----------------------------------------------------------------------------------------------------------------------------
 4      SOURCE OF FUNDS*

           WC
- ----------------------------------------------------------------------------------------------------------------------------
 5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                         [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 6      CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
- ----------------------------------------------------------------------------------------------------------------------------
                        7     SOLE VOTING POWER
                  
                                 - 0 -
                       -----------------------------------------------------------------------------------------------------
      NUMBER OF         8     SHARED VOTING POWER    
        SHARES    
     BENEFICIALLY                92,350 (of Series B Shares) +      
       OWNED BY         ----------------------------------------------------------------------------------------------------
        EACH            9     SOLE DISPOSITIVE POWER
      REPORTING   
       PERSON                    - 0 -
        WITH            ----------------------------------------------------------------------------------------------------
                        10    SHARED DISPOSITIVE POWER

                                 92,350 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           92,350 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*                                                  [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

           61.51% (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 14     TYPE OF REPORTING PERSON*

           PN
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>
+  See Item 5 below.
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   3
                                  SCHEDULE 13D


<TABLE>
 <S>                                                                                       <C>
 CUSIP NO.     713839108                                                                   PAGE 3 OF 10 PAGES
           -----------------                                                                                 
- ----------------------------------------------------------------------------------------------------------------------------
 1      NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          RICHARD C. BLUM & ASSOCIATES, L.P., 94-3205364

- ----------------------------------------------------------------------------------------------------------------------------
 2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                                                 (a) [X]+
                                                                                                                 (b) [X]+

- ----------------------------------------------------------------------------------------------------------------------------
 3      SEC USE ONLY


- ----------------------------------------------------------------------------------------------------------------------------
 4      SOURCE OF FUNDS*

          Not Applicable
- ----------------------------------------------------------------------------------------------------------------------------
 5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                         [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 6      CITIZENSHIP OR PLACE OF ORGANIZATION

          California
- ----------------------------------------------------------------------------------------------------------------------------
                        7     SOLE VOTING POWER
                 
                                 -0-
                       -----------------------------------------------------------------------------------------------------
      NUMBER OF         8     SHARED VOTING POWER    
        SHARES   
     BENEFICIALLY                115,650 (of Series B Shares) +      
       OWNED BY        -----------------------------------------------------------------------------------------------------
        EACH            9     SOLE DISPOSITIVE POWER
      REPORTING  
       PERSON                    -0-
        WITH           -----------------------------------------------------------------------------------------------------
                        10    SHARED DISPOSITIVE POWER

                                 115,650 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           115,650 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*                                                  [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

           77.0% (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 14     TYPE OF REPORTING PERSON*

           PN, IA
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

+  See Item 5 below.

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   4
                                  SCHEDULE 13D


<TABLE>
 <S>                                                                                       <C>
 CUSIP NO.     713839108                                                                   PAGE 4 OF 10 PAGES
           -----------------                                                                                 
- ----------------------------------------------------------------------------------------------------------------------------
 1      NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          RICHARD C. BLUM & ASSOCIATES, INC., 94-2967812

- ----------------------------------------------------------------------------------------------------------------------------
 2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                                                 (a) [X]+
                                                                                                                 (b) [X]+

- ----------------------------------------------------------------------------------------------------------------------------
 3      SEC USE ONLY


- ----------------------------------------------------------------------------------------------------------------------------
 4      SOURCE OF FUNDS*

          Not Applicable
- ----------------------------------------------------------------------------------------------------------------------------
 5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                         [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 6      CITIZENSHIP OR PLACE OF ORGANIZATION

          California
- ----------------------------------------------------------------------------------------------------------------------------
                        7     SOLE VOTING POWER
                 
                                 -0-
                       -----------------------------------------------------------------------------------------------------
      NUMBER OF         8     SHARED VOTING POWER    
        SHARES   
     BENEFICIALLY                115,650 (of Series B Shares) +      
       OWNED BY        -----------------------------------------------------------------------------------------------------
        EACH            9     SOLE DISPOSITIVE POWER
      REPORTING  
       PERSON                    -0-
        WITH           -----------------------------------------------------------------------------------------------------
                        10    SHARED DISPOSITIVE POWER

                                 115,650 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          115,650 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*                                                  [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

          77.0% (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 14     TYPE OF REPORTING PERSON*

          CO
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

+  See Item 5 below.

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   5
                                  SCHEDULE 13D


<TABLE>
 <S>                                                                                       <C>
 CUSIP NO.     713839108                                                                   PAGE 5 OF 10 PAGES
           -----------------                                                                                 
- ----------------------------------------------------------------------------------------------------------------------------
 1      NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          RICHARD C. BLUM, ###-##-####

- ----------------------------------------------------------------------------------------------------------------------------
 2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                                                                 (a) [X]+
                                                                                                                 (b) [X]+

- ----------------------------------------------------------------------------------------------------------------------------
 3      SEC USE ONLY


- ----------------------------------------------------------------------------------------------------------------------------
 4      SOURCE OF FUNDS*

          Not Applicable
- ----------------------------------------------------------------------------------------------------------------------------
 5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)                         [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 6      CITIZENSHIP OR PLACE OF ORGANIZATION

          USA
- ----------------------------------------------------------------------------------------------------------------------------
                        7     SOLE VOTING POWER
                 
                                 -0-
                       -----------------------------------------------------------------------------------------------------
      NUMBER OF         8     SHARED VOTING POWER    
        SHARES   
     BENEFICIALLY                115,650 (of Series B Shares) +      
       OWNED BY        -----------------------------------------------------------------------------------------------------
        EACH            9     SOLE DISPOSITIVE POWER
      REPORTING  
       PERSON                    -0-
        WITH           -----------------------------------------------------------------------------------------------------
                        10    SHARED DISPOSITIVE POWER

                                 115,650 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          115,650 (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*                                                  [ ]


- ----------------------------------------------------------------------------------------------------------------------------
 13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

          77.0% (of Series B Shares) +
- ----------------------------------------------------------------------------------------------------------------------------
 14     TYPE OF REPORTING PERSON*

          IN
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

+  See Item 5 below.

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   6
                                                              Page 6 of 12 Pages


ITEM 1.          SECURITY AND ISSUER.

                 This Schedule 13D Amendment relates to the Series B Cumulative
Convertible Preferred Stock (the "Series B Shares") of the Perini Corporation
(the "Issuer") and the common stock of the Issuer into which such stock is
convertible.  As described more fully in Item 4 below, this Amendment is being
filed because of the decision of PB Capital Partners, L.P., a Delaware limited
partnership ("PB Capital"), to assign certain of its rights and obligations to
acquire the Series B Shares to Union Labor Life Insurance Company Separate
Account P ("Account P") and the approval thereof by the Issuer.

ITEM 2.          IDENTITY AND BACKGROUND.

                 This Schedule 13D Amendment is filed by and on behalf of PB
Capital, Richard C. Blum & Associates, L.P., a California limited partnership
("RCBA L.P."); Richard C. Blum & Associates, Inc., a California corporation
("RCBA Inc."); and Richard C. Blum, the Chairman and a substantial shareholder
of RCBA Inc. (collectively the "Reporting Persons").

                 PB Capital is a limited partnership whose principal business
is investing in securities and whose principal office is located at 909
Montgomery St., Suite 400, San Francisco, California 94133.  RCBA L.P. is the
sole general partner of PB Capital.

                 RCBA L.P. is a California limited partnership whose principal
business is acting as general partner for investment partnerships and providing
investment advisory and financial consulting services.  RCBA L.P.  is a
registered investment adviser with the Securities and Exchange Commission and
with the State of California.  The sole general partner of RCBA L.P. is RCBA
Inc.  The principal business office address of RCBA L.P. and RCBA Inc. is 909
Montgomery Street, Suite 400, San Francisco, California 94133.  The names of
the executive officers and directors of RCBA Inc., their addresses, citizenship
and principal occupations are as follows:

<TABLE>
<CAPTION>
 Name and Office Held          Business Address               Citizenship        Principal Occupation
 --------------------          ----------------               -----------        or Employment       
                                                                                 ---------------   

 <S>                           <C>                            <C>                <C>
 Richard C. Blum               909 Montgomery St.             USA                President and
 President, Chairman and       Suite 400                                         Chairman of
 Director                      San Francisco, CA                                 investment adviser

 Nils Colin Lind               909 Montgomery St.             Norway             Managing Director of
 Managing Director, Assistant  Suite 400                                         investment adviser
 Secretary and Director        San Francisco, CA

 Jeffrey W. Ubben              909 Montgomery St.             USA                Managing Director of
 Managing Director of          Suite 400                                         investment adviser
 Investments                   San Francisco, CA

 Alexander L. Dean             909 Montgomery St.             USA                Managing Director of
 Managing Director of          Suite 400                                         investment adviser
 Investments and Director      San Francisco, CA

 Peter E. Rosenberg            909 Montgomery St.             USA                Managing Director of
 Managing Director of          Suite 400                                         investment adviser
 Marketing and Director        San Francisco, CA

 Michael Kane                  909 Montgomery St.             USA                Managing Director of
 Managing Director of          Suite 400                                         investment adviser
 Investments                   San Francisco, CA

 John H. Steinhart             909 Montgomery St.             USA                Managing Director of
 Managing Director, Chief      Suite 400                                         investment adviser
 Administrative Officer, and   San Francisco, CA
 Secretary

 George F. Hamel, Jr.          909 Montgomery St.             USA                Managing Director of
 Managing Director of          Suite 400                                         investment adviser
 Marketing                     San Francisco, CA

 Marc Scholvinck               909 Montgomery St.             USA                Managing Director of
 Managing Director, Chief      Suite 400                                         investment adviser
 Financial Officer, and        San Francisco, CA
 Assistant Secretary

 Thomas L. Kempner             40 Wall Street                 USA                Chairman, Loeb
 Director                      New York, NY                                      Partners Corporation,
                                                                                 Investment Banking
                                                                                 Business
</TABLE>
<PAGE>   7
                                                              Page 7 of 12 Pages



                                     * * *

                 To the best knowledge of the Reporting Persons, none of the
entities or persons identified in this Item 2 has, during the past five years,
been convicted of any criminal proceeding (excluding traffic violations or
similar misdemeanors), nor been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such
proceeding was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities subject to,
federal or state securities laws or finding any violation with respect to such
laws.

ITEM 3.          SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

                 No change.

ITEM 4.          PURPOSE OF TRANSACTION.

                 PB Capital and RCBA L.P. entered into a Stock Purchase and
Sale Agreement with the Issuer on July 24, 1996 whereby PB Capital agreed to
acquire the Series B Shares.  The Stock Purchase and Sale Agreement with the
Issuer was amended on November 8, 1996.  A copy of the amendment is attached
hereto as Exhibit 4.2.  Among other things, the amendment granted PB Capital a
right to assign its obligations to acquire a portion of the Series B Shares to
financially-responsible third parties.  PB Capital assigned its rights and
obligations to acquire 34,500 shares of the Series B Shares to Account P
pursuant to an assignment agreement between PB Capital and Account P (the
"Assignment Agreement") on December 13, 1996, after a board meeting of the
Issuer at which such assignment was approved by the Issuer.  In addition, PB
Capital presently intends to assign its rights and obligations to acquire
23,300 shares of the Series B Shares to an account that RCBA, LP manages (with
full investment discretion) for The Common Fund for Non-Profit Organizations
("The Common Fund") or to transfer such shares to The Common Fund's account
after the closing.

                 The Reporting Persons are making this investment for
investment purposes and, if the transaction is consummated, intend to
participate actively in the direction of the Issuer.  The consummation of the
Stock Purchase and Sale Agreement pursuant to which this investment is to be
made will lead to the addition to the Issuer's Board of Directors of three
designees of the Reporting Persons, and membership of at least one of those
three new directors on each of the Committees of the Board of Directors of the
Issuer, except for the Executive Committee of the Board of Directors of the
Issuer on which all of the new directors will serve.  Also as reflected in
Exhibits 4.1 and 4.2, consummation of the transaction will also lead to the
amendment of the by-laws of the Issuer to provide that no action of the Board
of Directors on certain matters be taken without the prior favorable
recommendation of the Executive Committee and that the Executive Committee will
oversee the chief executive officer of the Issuer.  Finally, consummation of
the transactions contemplated by the Stock Purchase and Sale Agreement, as
amended, will lead to a management agreement (the "Management Agreement"),
included as part of Exhibit 4.2, between the Issuer and Tutor-Saliba
Corporation, a current holder of approximately 7.24% of the common stock of the
Issuer, by which Tutor-Saliba will supply the services of Ronald Tutor
("Tutor") to serve as acting chief operating officer of the Issuer.

                 The consummation of the Stock Purchase and Sale Agreement is
subject to certain significant contingencies set forth therein and in the
amendment, including approval of the transaction by the shareholders of the
Issuer at a special meeting and approval of the by-law amendment.

                 Other than as set forth in this statement, the Reporting
Persons do not have any present plans or proposals that relate to or would
result in any of the consequences listed in paragraphs (a)-(j) of Item 4 of
Schedule 13D, or any agreement regarding such matters, although they may in the
future take actions which would have such consequences.

ITEM 5.          INTEREST IN SECURITIES OF THE ISSUER.

                 (a), (b) According to information furnished to the Reporting
Persons by the Issuer, there were no shares of Series B Shares and
4,898,648 shares of Common Stock issued and outstanding as of November 27, 1996.

                 Based on the above information, after taking into account the
transactions described in Item 5(c) below, the following Reporting Persons will
report the following direct holdings and corresponding percentage interests in
the Series B Shares and Common Shares (assuming the conversion of all Series B
Shares into Common Shares):
<PAGE>   8
                                                              Page 8 of 12 Pages



<TABLE>
<CAPTION>
====================================================================================================================================
    NAME                                               SERIES B SHARES                      COMMON SHARES (AFTER CONVERSION)
                                             -------------------------------------      --------------------------------------------
                                              NUMBER OWNED          %AGE OWNED           NUMBER OWNED         %AGE OWNED
====================================================================================================================================
    <S>                                           <C>                      <C>                  <C>                        <C>
    PB Capital                                    92,350                   61.51%               1,907,626                  38.94%
- ------------------------------------------------------------------------------------------------------------------------------------
    RCBA, L.P. (for The Common Fund for           23,300                   16.65%                 481,296                   9.82%
    Non-Profit Organizations)
- ------------------------------------------------------------------------------------------------------------------------------------
    RCBA, L.P.                                         0                        0                       0                       0
- ------------------------------------------------------------------------------------------------------------------------------------
    RCBA Inc.                                          0                        0                       0                       0
- ------------------------------------------------------------------------------------------------------------------------------------
    Richard C. Blum                                    0                        0                       0                       0
====================================================================================================================================
</TABLE>

         Tutor has had discussions with RCBA, L.P. about being one of the
investors in PB Capital, and PB Capital plans to designate him as one of its
designees to the Board of the Issuer.  Tutor is the president of Tutor-Saliba
Corp. which is the owner of approximately 351,318 shares of Common Stock or
approximately 7.24% of the outstanding Common Stock of the Issuer.
Tutor-Saliba Corp. has sole voting and dispositive control over those shares
and no voting or dispositive control over the Series B Cumulative Convertible
Preferred Stock acquired by the Reporting Persons.  Although there is no formal
agreement, written or oral, regarding the acquisition, disposition or voting of
the securities of the Issuer as between the Reporting Persons, Tutor or
Tutor-Saliba Corp., the Reporting Persons and Tutor expect that they will be
consulting with each other and thus they and Tutor-Saliba Corp. may, for some
purposes, be deemed to be members of a group with respect to the Issuer. As
Chairman, director and a substantial shareholder of RCBA Inc., Richard C. Blum
might be deemed to be the beneficial owner of the securities beneficially owned
by RCBA Inc.  Although Mr. Blum is joining in this Schedule as a Reporting
Person, the filing of this Schedule shall not be construed as an admission that
he, or any of the other shareholders, directors or executive officers of RCBA
Inc. is, for any purpose, the beneficial owner of any of the securities that
are beneficially owned by RCBA Inc.

         As a result of the Assignment Agreement and Account P Shareholders
Agreement (defined below), the Reporting Persons and Account P may be deemed to
constitute a "group" within the meaning of Rule 13d-5 under the Act.  The
filing of this Schedule shall not be construed as an admission that the
Reporting Persons are the beneficial owner of any stock of the Issuer owned by
Account P.

         (c)     The Reporting Persons have engaged in no transaction involving
such shares or the Common Stock for the 60 days prior to the date of the event
requiring the filing of this statement except for: (i) the agreement to
purchase the Series B Shares described above, (ii) the assignment to Account P
of the rights and obligations to acquire 34,500 Series B Shares under the Stock
Purchase and Sale Agreement, and (iii) the issuance to PB Capital on November
8, 1996 by the Issuer of 47,267 shares of the Issuer's common stock (which such
shares were issued as a participation fee to PB Capital in exchange for its
purchase of a 100% participation in a $10 million extension of credit by
certain of the Issuer's lenders).  PB Capital subsequently distributed the
47,267 shares of the Issuer common stock pro rata to its investors.

         (d)     No change.

         (e)     No change.


ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT 
         TO SECURITIES OF THE ISSUER.

         None of the Reporting Persons or, to the best knowledge of the
Reporting Persons, the other persons named in Item 2, is a party to any
contract, arrangement, understanding or relationship with respect to any
securities of the Issuer, including but not limited to the transfer or voting
of any securities of the Issuer, finder's fees, joint ventures, loan or option
arrangements, puts or calls, guarantees of profits, division of profits or
loss, or the giving or withholding of proxies, except that:

         (a)     PB Capital will be a party to a voting agreement among it, the
                 Issuer, David Perini, Tutor, Bart Perini, and Tutor-Saliba
                 Corporation (and if they agree, Perini Memorial Foundation and
                 David B. Perini Testamentary Trust) to vote in favor of the
                 election of a director designated by PB Capital at the next
                 shareholder meeting of the Issuer.  The execution of this
                 agreement is a condition to PB Capital's acquisition of the
                 Series B Shares.
<PAGE>   9
                                                              Page 9 of 12 Pages


         (b)     For two years after the date that the Stock Purchase and Sale
                 Agreement closes, PB Capital and RCBA L.P. have agreed not to
                 purchase any securities, securities convertible into or
                 exchangeable for Series B Shares of the Issuer except for:
                 securities purchased or exchanged pursuant to the terms of the
                 Stock Purchase and Sale Agreement, securities issued by the
                 Issuer pursuant to stock splits, stock dividends,
                 recapitalization, securities purchased by a broker-dealer
                 affiliate of the Reporting Persons for the account of an
                 unaffiliated customer, securities issued pursuant to the
                 exercise of a warrant, option or other rights pursuant to a
                 distribution to stockholders of the Issuer or from the Issuer
                 directly, or securities issued pursuant to a business
                 combination between the Issuer and an entity which is not an
                 affiliate of the Reporting Persons.

         (c)     For two years after the date that the Stock Purchase and Sale
                 Agreement closes, PB Capital and RCBA L.P. have agreed to
                 allow the Issuer the right of first refusal to purchase (under
                 certain circumstances) the Series B Shares purchased pursuant
                 to the Stock Purchase and Sale Agreement or the Common Stock
                 into which it may be converted.

         (d)     Under the Management Agreement, Ronald Tutor will receive
                 options to purchase 150,000 shares of common stock of the
                 Issuer.

         (e)     As noted above, PB Capital, Account P, and the Issuer have
                 entered into the Assignment Agreement.  In addition, PB
                 Capital and Account P have entered into a shareholders
                 agreement (the "Account P Shareholders Agreement"), and RCBA
                 L.P. and Account P have entered into a services agreement (the
                 "Account P Services Agreement").  Under the Account P
                 Shareholders Agreement, Account P has agreed to a five-year
                 restriction on the transfer of the Series B Shares it acquires
                 from the Issuer (and any common shares issued in exchange
                 therefor), except that Account P will have the right to sell
                 or distribute a portion of its shares of Series B Shares (or
                 common shares issued in exchange therefor) on a pro rata basis
                 with PB Capital.  Under the Account P Services Agreement,
                 Account P has agreed to pay RCBA L.P. certain fees for
                 services rendered by RCBA in finding and structuring Account
                 P's investment in the Series B Shares and providing quarterly
                 reports on the performance thereof.  Additionally, RCBA has
                 agreed to share with Account P certain transaction fees, if
                 any, earned by it with respect to the Preferred Shares and
                 Account P has agreed to share with PB Capital certain expenses
                 incurred by PB Capital and Account P in making the investment
                 in the Series B Shares.

         (f)     It is expected that prior to the Closing of the transaction,
                 Account P, PB Capital and the Issuer will enter into a
                 Registration Rights Agreement (the "Registration Rights
                 Agreement") under which the Issuer has agreed, among other
                 things, upon the request of the holders of a majority of the
                 preferred Series B Shares to prepare and file with the
                 Securities and Exchange Commission a registration statement
                 for an offering to be made on a delayed or continuing basis
                 with respect to the common shares or other securities issued
                 upon conversion of the Series B Shares.  A copy of the
                 proposed form of Registration Rights Agreement is attached
                 hereto as part of Exhibit 4.2.

         (g)     It is further expected that prior to the Closing of the
                 transaction, Account P, PB Capital, the Issuer, The Common
                 Fund, and the holders of certain warrants to purchase shares
                 of common stock of the Issuer (the "Initial Warrantholders")
                 will enter into a Securityholders Agreement (the
                 "Securityholders Agreement") under which holders of the Series
                 B Shares, on the one hand, and the Initial Warrantholders, on
                 the other hand, have agreed, among other things, that each of
                 them may participate in a distribution in an underwritten
                 offering under a shelf registration of certain securities by
                 the other, and that each of them may under certain
                 circumstances require the other to become subject to a lockup
                 period with respect to the sale of securities of the Issuer.


ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

         Exhibit 4.2, being the Second Amendment to the Stock Purchase and Sale
Agreement between PB Capital, RCBA L.P. and the Issuer.

         The Stock Assignment and Assumption Agreement dated as of December 13,
1996, 1996 among PB Capital Account P, and the Issuer is being filed as an
exhibit to the Schedule 13D of Account P.

         The Shareholders Agreement dated as of December 13, 1996 between
Account P and PB Capital is being filed as an exhibit to the Schedule 13D of
Account P.

         The Services Agreement dated as of December 13, 1996 between Account P
and RCBA L.P. is being filed as an exhibit to the Schedule 13D of Account P.
<PAGE>   10
                                                             Page 10 of 12 Pages

         The form of Securityholders Agreement among Account P, PB Capital, the
Issuer, The Common Fund, and the Initial Warrantholders is being filed as an
exhibit to the Schedule 13D of Account P.
<PAGE>   11
                                                             Page 11 of 12 Pages


                                   SIGNATURES

         After reasonable inquiry and to the best of our knowledge and belief,
the undersigned certify that the information set forth in this statement is
true, complete and correct.

December 13, 1996

<TABLE>
<S>                                                        <C>
PB CAPITAL PARTNERS, L.P.                                  RICHARD C. BLUM & ASSOCIATES, L.P.

By       Richard C. Blum & Associates, L.P., its           By      Richard C. Blum & Associates, Inc., its
         General Partner                                           General Partner

         By      Richard C. Blum & Associates,                     By       /s/
                 Inc., its General Partner                                  ------------------------------------------------------
                                                                            John H. Steinhart, Chief
                                                                            Administrative Officer and Managing Director
                 By       /s/
                          ---------------------------------
                          John H. Steinhart, Chief
                          Administrative Officer and
                          Managing Director
</TABLE>


<TABLE>
<S>                                                        <C>
RICHARD C. BLUM & ASSOCIATES, INC.                         RICHARD C. BLUM

By       /s/                                               By      /s/
         ---------------------------------                         ----------------------------------
         John H. Steinhart, Chief Administrative                   By John H. Steinhart, Attorney-in-Fact
         Officer and Managing Director
</TABLE>
<PAGE>   12
                                                             Page 12 of 12 Pages

                                   EXHIBIT A

                            JOINT FILING UNDERTAKING

         The undersigned, being duly authorized thereunto, hereby execute this
agreement as an exhibit to the Schedule 13D to evidence the agreement of the
below-named parties, in accordance with the rules promulgated pursuant to the
Securities Exchange Act of 1934, to file this Schedule jointly on behalf of
each such party.

Dated:   December 13, 1996


<TABLE>
<S>                                                        <C>
PB CAPITAL PARTNERS, L.P.                                  RICHARD C. BLUM & ASSOCIATES, L.P.

By       Richard C. Blum & Associates, L.P., its           By      Richard C. Blum & Associates, Inc., its
         General Partner                                           General Partner

         By      Richard C. Blum & Associates,                     By       /s/
                 Inc., its General Partner                                  ------------------------------------------------------
                                                                            John H. Steinhart, Chief
                                                                            Administrative Officer and Managing Director
                 By       /s/                              
                          ---------------------------------
                          John H. Steinhart, Chief
                          Administrative Officer and
                          Managing Director
</TABLE>

<TABLE>
<S>                                                        <C>
RICHARD C. BLUM & ASSOCIATES, INC.                         RICHARD C. BLUM

By       /s/                                               By      /s/
         ---------------------------------                         ----------------------------------
         John H. Steinhart, Chief Administrative                   By John H. Steinhart, Attorney-in-Fact
         Officer and Managing Director
</TABLE>

<PAGE>   1
                                                                    EXHIBIT 4.2



                  SECOND AMENDMENT TO STOCK PURCHASE AGREEMENT


     This SECOND AMENDMENT (the "Amendment") to the Stock Purchase Agreement is
made this 8th day of November, 1996, by and among RICHARD C. BLUM & ASSOCIATES,
L.P., a California limited partnership ("RCBA"), PB CAPITAL PARTNERS, L.P., a
Delaware limited partnership ("Purchaser"), and PERINI CORPORATION, a
Massachusetts corporation ("Seller").  Capitalized terms not defined herein
shall have the meaning given them in the Stock Purchase and Sale Agreement (the
"Agreement"), dated July 24, 1996, by and among RCBA, Purchaser, and Seller.

     WHEREAS, RCBA, Purchaser, and Seller are parties to the Agreement; and

     WHEREAS, by letter agreements dated August 21, 1996, September 16, 1996,
September 30, 1996, and October 9, 1996, RCBA, Purchaser and Seller agreed to
change certain deadlines in the Agreement (collectively, the "First
Amendment"); and

     WHEREAS, RCBA, Purchaser, and Seller now wish to amend certain terms
thereof; and

     WHEREAS, except as amended hereby, the RCBA, Purchaser, and Seller desire
the Agreement, as amended, to continue in full force and effect.

     NOW, THEREFORE, in consideration of the premises and of the respective
representations, warranties, covenants, agreements and conditions contained
herein and in the Agreement, each of the parties agrees as follows:

     1.   Section 1.6 is amended and restated in its entirety as follows:

               1.6  "Bylaw Amendments" means the amendments to the Bylaws of
          the Seller, to be approved by the Board of Directors and the
          shareholders of Seller on or prior to the Closing Date, a true and
          correct copy of which is attached as Exhibit 1.6 hereto.

     2.   Section 1.28 is amended and restated in its entirety as follows:

               1.28  "Proxy Statement" means the proxy statement, complying
          with the requirements of the Securities Exchange Act of 1934 (the
          "Exchange Act"), sent to the shareholders of Seller in connection
          with the Shareholder Meeting of Seller with respect to, among  other
          matters, the Shareholder Meeting Matters.





<PAGE>   2
     3.   Section 2.1 is amended by replacing "September 9, 1996" with "January
31, 1997".

     4.   Section 3.5 is amended and restated in its entirety as follows:

               3.5  Rights Agreement.  The Rights Agreement shall be in full
          force and effect and not have been amended, modified or supplemented
          on or after the date of this Agreement other than as provided in the
          following sentence.  The Board of Directors of the Seller shall have
          (a) amended or waived provisions of the Rights Agreement such that
          neither the execution nor the delivery of this Agreement and the
          other Transaction Documents nor the fulfillment of the terms of this
          Agreement by the Seller nor the issuance of shares of Conversion
          Stock as herein contemplated will cause there to be a Stock
          Acquisition Date or a Distribution Date (as those terms are defined
          in the Rights Agreement), (b) amended the provisions of the Rights
          Agreement to provide that Purchaser shall not be deemed to be an
          Adverse Person (as that term is defined in the Rights Agreement), and
          (c) amended the provisions of the Rights Agreement (i) to lower, for
          at least thirty-eight months following the Closing, the threshold for
          definition of an Acquiring Person from beneficial ownership of 20% of
          the then issued and outstanding Common Stock to beneficial ownership
          10% of the then issued and outstanding Common Stock, and (ii) to
          change the Initial Expiration Date to a date that is at least
          thirty-eight months following the Closing.

     5.   Section 3.7 is amended by striking the words "upon ratification
within one year hereof of the sale of Shares described in this Agreement by
shareholders of Seller (including holders of the Shares)".

     6.   Article III is amended by adding the following after Section 3.14:

               3.15 Shareholder Meeting Matters. Seller shall have held
          the Shareholder Meeting and the shareholders of Seller shall have
          approved the Shareholder Meeting Matters by the requisite votes
          required by applicable law.

               3.16 Ronald Tutor. Ronald Tutor shall not be prevented from
          serving on the Board of Directors of Seller or from acting chief
          operating officer of Seller by (a) any action of a state or federal
          governmental authority, or (b) his death or disability.  No state or
          federal governmental authority shall have threatened to file a
          lawsuit or institute administrative action (x) to prevent Ronald
          Tutor from so serving, (y) to limit his role as





                                     - 2 -
<PAGE>   3
          officer or director of Seller, or (z) to seek civil or criminal
          damages or penalties against any of the parties hereto or Tutor
          should he serve as an officer or director of Seller, and, in the
          reasonable judgment of RCBA, there shall not be a material risk of
          such a suit or action.  Seller shall have entered into a management
          agreement with Tutor-Saliba Corporation in substantially the form of
          Exhibit 3.16 hereto, with such changes as shall be required by any
          state or federal governmental authority (which changes are reasonably
          acceptable to Seller, Tutor-Saliba Corporation, and RCBA), and such
          agreement shall be in full force and effect.

               3.17 Conflict of Interest. RCBA has previously advised Seller of
          its insistence that RCBA, PB, and Seller avoid any and all possible
          conflict of interest issue arising out of PB's proposed investment in
          Seller and the relationship of a principal of RCBA to a United States
          Senator.  There fore, it is a condition to Closing (a) that the
          Senate Ethics Committee and regular counsel for the Senator on such
          matters shall each have given an opinion concerning RCBA's
          involvement with Seller that, in the reason able judgment of RCBA,
          does not require the imposition of material restrictions on the
          business of Seller or upon the ability of the Senator to vote on
          matters of concern to her constituents, and (b) that RCBA be assured
          by the Executive Committee of Seller's Board of Directors that it
          will cause Seller not to bid for a project when and if advised of
          RCBA's view that such bid could create a significant risk of exposing
          Seller, RCBA, PB, and/or the Senator to a conflict of interest
          problem.

     7.   Article IV is amended by adding the following after Section 4.9:

               4.10 Shareholder Meeting Matters. Seller shall have held
          the Shareholder Meeting and the shareholders of Seller shall have
          approved the Shareholder Meeting Matters by the requisite votes
          required by applicable law.

     8.   Section 5.22 is amended and restated in its entirety as follows:

               5.22 No Material Adverse Change.  Since the latest date as of
          which information with respect to the following items is given in the
          SEC Documents filed prior to July 24, 1996 and except as contained in
          the Transaction Documents and the transactions contemplated therein,
          there has not been:

                    (a)  any change that by itself or together with other
          changes has a Material Adverse Effect; or





                                    - 3 -
<PAGE>   4
                    (b)  any damage, destruction or loss (whether or not
          covered by insurance) materially adversely affecting the properties
          or business of Seller; or

                    (c)  except (i) as provided for in this Agreement or in the
          other Transaction Documents, or (ii) for the warrants to be issued to
          the banks listed on Exhibit 3.9 on the Closing Date, any change in
          the authorized capital of Seller or in its outstanding securities or
          any change in its ownership interests or any grant of any options,
          warrants, calls, conversion rights or commitments; or

                    (d)  any declaration or payment of any dividend or
          distribution in respect of the capital stock or any direct or
          indirect redemption, purchase or other acquisition of any of the
          capital stock of Seller (other than in accordance with the credit
          agreements described in Exhibit 3.9 and consented to by RCBA); or

                    (e)  any material increase in the compensation, bonus,
          sales commissions or fee arrangements payable or to become payable by
          Seller to any of its officers directors, stockholders, employees,
          consultants or agents, except for ordinary and customary bonuses and
          salary increased for employees in accordance with past practice; or

                    (f)  any work interruptions, labor grievances or claims
          filed, or any similar event or condition of any character, materially
          adversely affecting the business or future prospects of Seller; or

                    (g)  any sale or transfer, or any agreement to sell or
          transfer, any material assets property or rights of Seller to any
          person (other than any disposition by Seller of assets on terms
          substantially similar to those already disclosed to RCBA or otherwise
          consented to by RCBA); or

                    (h)  any cancellation, or agreement to cancel, any material
          indebtedness or other material obligation owing to Seller, provided
          that Seller may negotiate and adjust bills in the course of good
          faith disputes with customers in a manner consistent with past
          practice; or

                    (i)  any plan, agreement or arrangement granting any
          preferential rights to purchase or acquire any interest in any of the
          material assets, property or rights of Seller or requiring consent of
          any party to the transfer and assignment of any such assets, property
          or rights; or





                                    - 4 -
<PAGE>   5
                    (j)  any purchase or acquisition of, or agreement, plan or
          arrangement to purchase or acquire, any material property, rights or
          assets outside of the ordinary course of business of Seller; or

                    (k)  any waiver of any material rights or claims of Seller;
          or

                    (l)  any material breach, amendment or termination of any
          material contract, agreement, license, permit or other right to which
          Seller is a party; or

                    (m)  any material transaction by Seller outside the
          ordinary course of business; or

                    (n)  any capital expenditures or commitment by Seller,
          either individually or in the aggregate, exceeding $5,000,000.00; or

                    (o)  any change in accounting methods or practices
          (including any change in depreciation or amortization policies or
          rates) by Seller or the revaluation by Seller of any of its assets
          (other than a change in the valuation of the assets described in the
          parenthetical clause to Section 5.22(g) in connection with any such
          disposition); or

                    (p)  any creation or assumption by Seller of any mortgage,
          pledge, security interest or lien or other encumbrance on any asset
          other than:

                         (i)  liens arising under existing lease financing
          arrangements which are not material,

                         (ii) liens for taxes, assessments or other
          governmental charges not yet due or which are being contested in good
          faith and by appropriate proceedings if adequate reserves with
          respect thereto are maintained on the books of Seller in accordance
          with GAAP;

                        (iii) liens granted to the banks listed on Exhibit
          3.9; or

                         (iv) carriers', warehousemen's, mechancs',
          materialmen's, repairmen's or other like liens arising by operation
          of law in the ordinary course of business of Seller so long as (A)
          the underlying obligations are not overdue for a period of more than
          60 days or (B) such liens as are being contested in good faith and by
          appropriate proceedings





                                    - 5 -
<PAGE>   6
          and adquate reserves with respect thereto are maintained on the books
          of Seller in accordance with GAAP;

                    (q)  any entry into, amendment of, relinquishment,
          termination or non-renewal by Seller of any contract, lease
          transaction, commitment or other right or obligation that would have
          a Material Adverse Effect; or

                    (r)  any loan by Seller to any person or entity, incurring
          by Seller, of any indebtedness, guaranteeing by Seller of any
          indebtedness, issuance or sale of any debt securities of Seller or
          guaranteeing of any debt securities of others (other than loans to
          Seller from construction joint ventures in which Seller owns an
          interest not to exceed, in the aggregate, $35,000,000); or

                    (s)  the commencement or notice or threat of commencement
          of any material lawsuit or proceeding against or investigation of
          Seller or any of its affairs; or

                    (t)  negotiation or agreement by Seller or any officer or
          employee thereof to do any of the things described in the preceding
          clauses (a) through (s) (other than negotiations  with RCBA and its
          representatives regarding the transactions contemplated by this
          Agreement).

     9.   Article V is amended by adding the following after Section 5.25:

               5.26  Proxy Statement.  The Proxy Statement, sent to
          shareholders of Seller after the date hereof but before Closing, will
          not have included any untrue statement of a material fact, or omitted
          to state any material fact, necessary to make the statements therein,
          in the light of the circumstances under which they were made, not
          misleading; provided, however, that this representation shall not
          encompass any information in the Proxy Statement that was furnished
          in writing to the Seller by or on behalf of Purchaser or RCBA for use
          specifically in connection with the preparation of the Proxy
          Statement.

               5.27  Liquidated Damages Clauses.  Except as set forth on
          Schedule 5.27, Seller does not currently have any construction
          contract that does not have a liquidated damages provision
          establishing Seller's maximum potential liability in the event of a
          breach.





                                    - 6 -
<PAGE>   7
               5.28  Ownership.  To the knowledge of Seller: (a) at no time
          during the preceding thirty-six months was there any person or group
          that had beneficial ownership of more than five percent (5%) of the
          $21.25 Preferred Stock, (b) the only persons or groups that have
          beneficial ownership of more than five percent (5%) of the Common
          Stock are listed on Schedule 5.28, (c) Schedule 5.28 shows the
          ownership of Common Stock of the persons or groups referred to in
          clause (b) of this Section as of the dates shown on Schedule 5.28,
          (d) the persons or groups referred to in clause (b) of this section
          do not own, directly or indirectly, any shares of the $21.25
          Preferred Stock except as otherwise shown on Schedule 5.28, and (e)
          at no time during the preceding thirty-six months did any of the
          persons or groups listed on Schedule 5.28 own fewer shares of Common
          Stock than the lowest amount shown with respect to such person or
          group on Schedule 5.28.

     10.  Section 7.2(d) is amended by adding the following at the end thereof:
"the shareholders of Seller shall have approved of such Bylaw Amendments, and".

     11.  Section 7.5(a) and (b) are each amended by inserting the phrase " AS
AMENDED," after the words "JULY 24, 1996".

     12.  Section 7.9 is amended and restated in its entirety as follows:

                7.9  Shareholder Meeting.  As promptly as reasonably
          possible after the date hereof, Seller shall call and hold a special
          meeting of the shareholders of Seller ("Shareholder Meeting"), to
          obtain shareholder approval for the issuance of the Class B Shares
          (in a manner that complies with the requirements of American Stock
          Exchange Rule 713), and the Bylaw Amendments (such items the
          "Shareholder Meeting Matters").  Seller shall recommend, and shall
          use commercially reasonable efforts (including the preparation and
          circulation of the Proxy Statement) to obtain approval for the
          Shareholder Meeting Matters.

     13.  Section 7.10 is amended and restated in its entirety as follows:

                7.10 Proxy Statement.  The Proxy Statement shall not be
          filed, and no amendment or supplement to the Proxy Statement shall be
          made, without consultation with RCBA and Purchaser. Seller shall
          notify RCBA and Purchaser promptly of the receipt by it of any
          comments from the SEC or its staff and of any request by the SEC for
          amendments or supplements to the  Proxy Statement and shall supply
          RCBA and Purchaser with copies of all





                                    - 7 -
<PAGE>   8
          correspondence between it and its representatives, on the one hand,
          and the SEC or the members of its staff, on the other hand, with
          respect to the Proxy Statement.

     14.  Section 7.12 is amended by striking the phrase: "Subsequent to
approval by the shareholders of the Seller of the Shareholder Meeting Matters
at the Shareholders Meeting,".

     15.  Article VII is amended by adding the following after Section 7.19:

               7.20  Appointment of Designated Directors.   Seller
          covenants and agrees that the holders of a majority of the Conversion
          Shares (as that term is defined in the Certificate of Vote) shall
          have the right, by sending written notice to Seller's board of
          directors, to nominate for election, designate, or remove Designated
          Directors and members of the Executive Committee (as and to the
          extent provided in Section 13 of the Certificate of Vote to the
          holders of a majority of the Series B Cumulative Convertible
          Preferred Stock), if all of the following conditions are satisfied:

                    (a)  there are no shares of Series B Cumulative Convertible
          Preferred Stock issued and outstanding;

                    (b)  notwithstanding the absence of oustanding shares of
          Series B Cumulative Convertible Preferred Stock, pursuant to the
          Certificate of Vote the number of Designated Directors pursuant to
          the Certificate of Vote is equal to or greater than one (1);

                    (c)  the holders of the Conversion Shares providing such
          notice certify the number of Conversion Shares that are outstanding,
          the number of shares that each of them owns, and that, in aggregate,
          they own a majority of the Conversion Shares outstanding (or the
          Company reasonably determines that they own such a majority); and

                    (d)  in the case of the nomination or election of a
          director, the notice contains the information with respect to the
          nominee which would be required by the then applicable rules of the
          Securities and Exchange Commission or the requirements of the
          national stock exchange on which the Company's Common Stock is then
          listed to be included in the Company's proxy statement for a meeting
          of stockholders at which such nominee were to be elected and the
          Board does not reasonably object to such nominee.





                                    - 8 -
<PAGE>   9
          Upon receipt of a notice referred to in the preceding sentence, the
          Board of directors of Seller shall, unless prohibited by applicable
          law, cause such nominations, designations, and removals of Designated
          Directors and members of the Executive Committee to be made
          effective.

     16.  Article IX is amended by replacing "September 9, 1996" with "January
31, 1997 " and by replacing "October 9, 1996" with "February 28, 1997".

     17.  Section 10.3(b)(ii) is amended by replacing the phrase "and 4.8" with
the phrase ", 4.8, or 4.10".

     18.  Section 10.3(c)(iii) is amended by replacing the phrase "and 4.8"
with the phrase ", 4.8, or 4.10".

     19.  Article XI is amended and restated in its entirety as follows:

               All representations and warranties contained in this Agreement
          shall survive the execution of this Agreement and the delivery of the
          Shares for a period of three years from the date of such delivery.

     20.  Article XIII is amended by adding at the end thereof the following:

          In addition, Purchaser shall have the right, prior to Closing, to
          assign its rights and obligations hereunder to purchase a specified
          number of shares (but not to exceed 65,000 shares) at the price
          provided by this Agreement to financially responsible third parties
          (other than persons to whom transfer would, following Closing, be
          prohibited pursuant to Section 14.12 or be prohibited by applicable
          law).  Such person or persons (each, a "Permitted Assignee") and
          Purchaser shall execute an assumption and assignment agreement (the
          "Assignment Agreement") reasonably acceptable to Seller whereby the
          Permitted Assignee agrees to be bound by the terms and conditions of
          the Agreement and makes the representations and warranties called for
          by Article VI (subject only to such changes as are necessary to
          address the legal nature of such person).  Once such assignment is
          duly executed, (a) the term "Purchaser" as used in this Agreement and
          the Transaction Documents shall mean PB Capital, L.P. and such
          Permitted Assignee, and (b) PB Capital, L.P. shall be released from
          its obligations under this Agreement insofar as they relate to its
          obligation to purchase the number of shares that such Permitted
          Assignee agreed to purchase under the Assignment Agreement.

     21.  Section 14.2 is amended and restated as follows:





                                    - 9 -
<PAGE>   10
               14.2 Expenses. Except as set forth in Section 10.3, Amendment
          No. 7 to Bridge Credit Agreement and Amendment No. 3 to Credit
          Agreement, that certain letter agreement dated as of November 7, 1996
          between Seller and Purchaser, or the following sentence, each party
          shall bear its own expenses.  Seller acknowledges that RCBA has
          incurred significant expenses in the interest of expediting and
          completing the transaction, and has also incurred due diligence
          expenses that will benefit Seller on an ongoing basis; therefore,
          immediately following Closing, Seller will  reimburse RCBA for its
          out of pocket expenses (including professional fees), but such
          reimbursement shall not exceed $150,000 unless RCBA and Seller
          otherwise agree.

     22.  Exhibit 1.7 is amended by replacing it in its entirety with Exhibit
1.7 hereto.

     23.  Exhibit 1.32 is amended by replacing it in its entirety with Exhibit
1.32 hereto.

     24.  Exhibit 3.12 is amended by replacing it in its entirety with Exhibit
3.12 hereto.





                                    - 10 -
<PAGE>   11
     IN WITNESS WHEREOF, the parties hereto have executed this Second
Amendment.


PB CAPITAL PARTNERS, L.P.                    PERINI CORPORATION                
                                                                               
By:  Richard C. Blum & Associates, L.P.,                                       
     its General Partner                                                       
                                             By:   /s/ DAVID B. PERINI
     By:  Richard C. Blum & Associates,           ----------------------------
          Inc., its General Partner               Name: David B. Perini
                                                  Title: Chairman and President

          By:   /s/ A. L. DEAN JR.
               ---------------------------
               Name: Alexander L. Dean Jr.
               Title: Managing Director


RICHARD C. BLUM & ASSOCIATES, L.P.

By:  Richard C. Blum & Associates, Inc.,
     its General Partner


     By:   /s/ A. L. DEAN JR.
          ---------------------------
          Name: Alexander L. Dean Jr.
          Title: Managing Director





                                     - 10 -
<PAGE>   12
                                SCHEDULE LIST



1.   Revised Exhibit 1.7

2.   Revised Exhibit 1.32

3.   Revised Exhibit 3.12

4.   Exhibit 3.16

5.   Revised Exhibit 1.6





<PAGE>   13
                        CERTIFICATE OF VOTE OF DIRECTORS
                                  ESTABLISHING
                SERIES B CUMULATIVE CONVERTIBLE PREFERRED STOCK
                             OF PERINI CORPORATION
                  (PURSUANT TO CHAPTER 156B, SECTION 26 OF THE
               GENERAL LAWS OF THE COMMONWEALTH OF MASSACHUSETTS)

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

         Perini Corporation, a corporation organized and existing under the
laws of the State of Massachusetts (hereinafter called the "Corporation"), and
having its principal office in this State at 73 Mt. Wayte Avenue, Framingham,
Massachusetts 01701, hereby certifies to the State Department of Massachusetts
that:

         FIRST: Pursuant to the authority granted to and vested in the Board of
Directors of the Corporation (hereinafter called the "Board of Directors" or
the "Board") in accordance with the provisions of Article ________ of the
Restated Articles of Organization of the Corporation (the "Articles"), the
Board of Directors, at a meeting duly convened and held on ____ __, 1996,
regarding the sale and issuance by the Corporation of cumulative convertible
preferred stock, adopted resolutions (the "Resolutions") classifying 500,000
shares of Preferred Stock of the Corporation into a single series to be
designated as "Series B Cumulative Convertible Preferred Stock" and setting the
preferences, conversion and other rights, voting powers, restrictions,
limitations as to dividends, qualifications, and terms and conditions of
redemption of such shares as follows:

                SERIES B CUMULATIVE CONVERTIBLE PREFERRED STOCK

                 1.       Designation and Amount.  There shall be a series of
         Preferred Stock designated as "Series B Cumulative Convertible
         Preferred Stock" and the number of shares constituting such series
         shall be 500,000, of which 150,150 shall be issued initially (the date
         of such issuance, the "Original Issue Date") and the remainder shall
         be reserved for issuance as dividends pursuant to Section 3 below. The
         number of shares designated as shares of Series B Cumulative
         Convertible Preferred Stock may be decreased (but not increased) by
         the Board of Directors without a vote of stockholders; provided,
         however, that such number may not be decreased without the approval of
         the holders of 66-2/3% of the then outstanding shares of Series B
         Cumulative Convertible Preferred Stock.


                 2.       Preemptive Rights.  Holders of shares of Series B
         Cumulative Convertible Preferred Stock are not entitled to any
         preemptive or subscription rights in respect of any securities of the
         Corporation.
<PAGE>   14
                 3.       Dividends.

                          (a)     The holders of shares of Series B Cumulative
         Convertible Preferred Stock shall be entitled to receive, when and as
         authorized and declared by the Board of Directors out of funds at the
         time legally available therefor, dividends at the Cash Dividend Rate
         (defined below) per annum times the Liquidation Preference (defined
         below in Section 4(a)) if paid in cash, or at the In-Kind Dividend
         Rate (defined below) per annum times the Liquidation Preference if
         paid in additional shares of Series B Cumulative Convertible Preferred
         Stock, and no more, which shall be fully cumulative, shall accrue with
         respect to any such share from the original date of issuance of such
         share without interest and shall be payable quarterly in arrears on
         March 15, June 15, September 15 and December 15 of each year (a
         "Dividend Payment Date"), commencing March 15, 1997 (except that if
         any such date is a Saturday, Sunday or legal holiday, then such
         dividend shall be payable on the next day that is not a Saturday,
         Sunday or legal holiday) to holders of record as they appear upon the
         stock transfer books of the Corporation on each March 1, June 1,
         September 1 and December 1 immediately preceding the payment dates, or
         such other dates as shall be fixed at the time of the authorization
         and declaration by the Board of Directors (or, to the extent permitted
         by applicable law, a duly authorized committee thereof), which date
         shall not be less than ten (10) nor more than sixty (60) days
         preceding the relevant dividend payment date.  For purposes hereof,
         the term "legal holiday" shall mean any day on which banking
         institutions are authorized to close in New York, New York.  The
         amount of dividends payable per share of Series B Cumulative
         Convertible Preferred Stock for each quarterly dividend period shall
         be computed by dividing the annual dividend amount by four and shall
         include fractional shares.  The amount of dividends payable for the
         initial dividend period and any period shorter than a full quarterly
         period during which shares are outstanding shall be computed on the
         basis of a 360-day year of twelve 30-day months and the actual number
         of days elapsed in the period in which payable.  No interest shall be
         payable in respect of any dividend payment on the Series B Cumulative
         Convertible Preferred Stock or any other Parity  Dividend Stock (as
         hereinafter defined) which may be in arrears.  The "Cash Dividend
         Rate" shall be 9 percent per annum if a Special Default (defined
         below) has occurred and is continuing at any time during the
         applicable Annual Payment Period (defined below) or Semiannual Payment
         Period (defined below), and shall be 7 percent per annum at all other
         times. The "In-Kind Dividend Rate" shall be 12 percent per annum if a
         Special Default has occurred and is continuing at any time during the
         applicable Annual Payment Period or Semiannual Payment Period, and
         shall be 10 percent per annum at all other times.





                                     - 2 -
<PAGE>   15
                          (b)     Any dividend payments may be made, in the
         sole discretion of the Board of Directors, as follows (for purposes of
         this determination, the Designated Directors (defined below in Section
         13) shall not vote):

                                  (i)   Prior to December 15, 1999:

                                        (1)     on or prior to the Original
         Issue Date and prior to December 15, 1997 and 1998, the Board of
         Directors shall determine whether dividend payments payable on the
         next four Dividend Payment Dates beginning December 15 (each, an
         "Annual Payment Period") shall be paid in (i) cash or (ii) additional
         shares of Series B Cumulative Convertible Preferred Stock valued at
         the Liquidation Preference (but not in any combination of cash and
         additional shares of Series B Cumulative Convertible Preferred Stock);
         provided, however, that the first Annual Payment Period shall commence
         March 15, 1997, and run for three Dividend Payment Dates if the
         Original Issue Date is between December 15, 1996 and March 15, 1997;

                                        (2)     in the event that, during an
         Annual Payment Period when the Board has elected to pay dividends on
         the Series B Cumulative Convertible Preferred Stock in cash, the
         Corporation fails to authorize, declare and pay in cash on a Dividend
         Payment Date the full amount of the cash dividend due at the Cash
         Dividend Rate, then, on or prior to such Dividend Payment Date, the
         Board shall authorize, declare and pay a supplemental stock dividend
         in shares of Series B Cumulative Convertible Preferred Stock (valued
         at the Liquidation Preference) equal to the difference between the
         dividend that would have been paid in-kind at the In-Kind Dividend
         Rate (assuming that the Board had elected to pay dividends for such
         period in-kind and assuming that a Special Default existed) and the
         cash dividend actually declared and paid on such Dividend Payment Date
         and on the previous Dividend Payment Date during such Annual Payment
         Period, if any.

                                  (ii)  On or after December 15, 1999:

                                        (1)     On or prior to December 15,
         1999 and on or prior to each June 15 and December 15 thereafter, the
         Board of Directors shall determine whether dividend payments accruing
         on the next two Dividend Payment Dates beginning on such Dividend
         Payment Date (each a "Semiannual Payment Period") shall be paid in (i)
         cash or (ii) additional shares of Series B Cumulative Convertible
         Preferred Stock valued at the Liquidation Preference (but





                                     - 3 -
<PAGE>   16
         not in any combination of cash and additional shares of Series B
         Cumulative Convertible Preferred Stock);

                                        (2)     in the event that, during a
         Semiannual Payment Period when the Board has elected to pay dividends
         on the Series B Cumulative Convertible Preferred Stock in cash, the
         Corporation fails to authorize, declare and pay in cash on a Dividend
         Payment Date the full amount of the cash dividend due at the Cash
         Dividend Rate, then, on such Dividend Payment Date, the Board shall
         authorize, declare and pay a supplemental stock dividend in shares of
         Series B Cumulative Convertible Preferred Stock (valued at the
         Liquidation Preference) equal to the difference between the dividend
         that would have been paid in-kind at the In-Kind Dividend Rate
         (assuming that the Board had elected to pay dividends for such period
         in-kind and assuming that a Special Default existed) and the cash
         dividend actually declared and paid on such Dividend Payment Date and
         on the previous Dividend Payment Date during such Semiannual Payment
         Period, if any.

                                  (iii) All shares of Series B Cumulative
         Convertible Preferred Stock issued as a dividend with respect to the
         Series B Cumulative Convertible Preferred Stock shall thereupon be
         duly authorized, validly issued, fully paid and nonassessable.

                          (c)     In the case of shares of Series B Cumulative
         Convertible Preferred Stock issued on the Original Issue Date,
         dividends shall accrue and be cumulative from such date.  In the case
         of shares of Series B Cumulative Convertible Preferred Stock issued as
         a dividend on shares of Series B Cumulative Convertible Preferred
         Stock, dividends shall accrue and be cumulative from the dividend
         payment date in respect  of which such shares were (or should have
         been) issued as a dividend.

                          (d)     Each fractional share of Series B Cumulative
         Convertible Preferred Stock outstanding shall be entitled to a ratably
         proportionate amount of all dividends accruing with respect to each
         outstanding share of Series B Cumulative Convertible Preferred Stock,
         and all such dividends with respect to such outstanding fractional
         shares shall be cumulative and shall accrue (whether or not declared),
         and shall be payable in the same manner and at such times as provided
         for above with respect to dividends on each outstanding share of
         Series B Cumulative Convertible Preferred Stock.  Each fractional
         share of Series B Cumulative Convertible Preferred Stock outstanding
         shall also be entitled to a ratably proportionate amount of any other
         distributions made with respect to each outstanding share of Series B
         Cumulative Convertible Preferred Stock, and all such





                                     - 4 -
<PAGE>   17
         distributions shall be payable in the same manner and at the same time
         as distributions on each outstanding share of Series B Cumulative
         Convertible Preferred Stock.

                          (e)     No dividends or other distributions shall be
         authorized, declared, paid or set apart for payment on any shares of
         Common Stock or other stock of the Corporation ranking junior as to
         dividends to the Series B Cumulative Convertible Preferred Stock
         (collectively, the "Junior Dividend Stock") except for dividends or
         distributions that are not Extraordinary Equity Payments (defined
         below in Section 8(h)).

                          (f)     If at any time any dividend on the $21.25
         Convertible Exchangeable Preferred Stock (the "$21.25 Preferred
         Stock") or any other stock of the Corporation hereafter issued ranking
         senior as to dividends to the Series B Cumulative Convertible
         Preferred Stock (collectively with the $21.25 Preferred Stock, the
         "Senior Dividend Stock") shall be in arrears, in whole or in part,
         then (except to the extent allowed by the terms of such Senior
         Dividend Stock) no cash dividend shall be authorized, declared, paid
         or set apart for payment on the Series B Cumulative Convertible
         Preferred Stock unless and until all accrued and unpaid dividends with
         respect to the Senior Dividend Stock for all payment periods ending on
         or prior to the date of payment of the current dividend on the Series
         B Cumulative Convertible Preferred Stock shall have been authorized,
         declared and paid or set apart for payment.  Dividends payable in
         additional shares of Series B Cumulative Convertible Preferred  Stock
         are permitted and not subordinated in payment to payment of dividends
         on the Senior Dividend Stock.

                          (g)     No dividends or other distributions shall be
         authorized, declared, paid or set apart for payment on any class or
         series of the Corporation's stock heretofore or hereafter issued
         ranking, as to dividends, on a parity with the Series B Cumulative
         Convertible Preferred Stock (the "Parity Dividend Stock") for any
         period unless full cumulative dividends have been, or
         contemporaneously are, authorized, declared and paid or set apart in
         trust for such payment on the Series B Cumulative Convertible
         Preferred Stock for all dividend payment periods terminating on or
         prior to the date of payment of such full cumulative dividends.  No
         full dividends (other than dividends payable in additional shares of
         Series B Cumulative Convertible Preferred Stock) shall be authorized,
         declared, paid or set apart for payment on the Series B Cumulative
         Convertible Preferred Stock for any period unless full cumulative
         dividends have been, or contemporaneously are, authorized, declared
         and paid or set apart for payment on the Parity Dividend Stock for all
         dividend periods terminating on or prior to the date of payment of
         such full cumulative dividends.  When accrued dividends are not paid





                                     - 5 -
<PAGE>   18
         in full on the Series B Cumulative Convertible Preferred Stock and the
         Parity Dividend Stock, all cash dividends authorized, declared and
         paid or set apart for payment on the Series B Cumulative Convertible
         Preferred Stock and the Parity Dividend Stock shall be authorized,
         declared, paid or set apart for payment pro rata so that the amount of
         dividends authorized, declared, paid or set apart for payment per
         share on the Series B Cumulative Convertible Preferred Stock and the
         Parity Dividend Stock shall in all cases bear to each other the same
         ratio that accrued and unpaid dividends per share on the Series B
         Cumulative Convertible Preferred Stock and the Parity Dividend Stock
         bear to each other.

                 4.       Liquidation Preference.

                          (a)     The liquidation preference of the Series B
         Cumulative Convertible Preferred Stock shall be $200.00 per share (the
         "Liquidation Preference").  Subject to the full payment of the
         liquidation preferences of the $21.25 Preferred Stock and the shares
         of stock of the Corporation hereafter issued ranking senior as to
         liquidation rights to the Series B Cumulative Convertible Preferred
         Stock (the "Senior Liquidation Stock"), in the event of a liquidation,
         dissolution or winding up of the Corporation, whether voluntary or
         involuntary, the holders of shares of Series B Cumulative Convertible
         Preferred Stock shall be entitled to receive out of the assets of the
         Corporation, whether such assets are stated capital or surplus of any
         nature, an amount equal to the dividends accrued and unpaid on such
         shares on the date of final distribution to such holders, whether or
         not declared, without interest, plus a sum equal to the Liquidation
         Preference, and no more, before any payment shall be made or any
         assets distributed to the holders of shares of Common Stock or any
         other class or series of the Corporation's stock hereafter issued
         ranking junior as to liquidation rights to the Series B Cumulative
         Convertible Preferred Stock (collectively, the "Junior Liquidation
         Stock").

                          (b)     The assets of the Corporation available for
         distribution after the liquidation preferences of the Senior
         Liquidation Stock are fully met shall be distributed ratably among the
         holders of the Series B Cumulative Convertible Preferred Stock and any
         other class or series of the Corporation's stock hereafter issued
         ranking on a parity as to liquidation rights with the Series B
         Cumulative Convertible Preferred Stock in proportion to the respective
         preferential amounts to which each is entitled (but only to the extent
         of such preferential amounts); provided, however, that after payment
         in full of the Liquidation Preferences, the holders of the shares of
         the Series B Cumulative Convertible Preferred Stock shall not be
         entitled to any further participation in any distribution of assets by
         the Corporation.  Neither a consolidation or merger of the Corporation
         with or into





                                     - 6 -
<PAGE>   19
         another corporation nor a merger of any other corporation with or into
         the Corporation, nor a sale or transfer of all or any part of the
         Corporation's assets for cash, securities or other property, will be
         considered a liquidation, dissolution or winding up of the
         Corporation.

                 5.       Limitation on Share Repurchase.  If at any time any
         dividends on the Series B Cumulative Convertible Preferred Stock shall
         be in arrears or the Corporation shall have failed to make any
         purchase of shares of Series B Cumulative Convertible Preferred Stock
         tendered to it pursuant to Section 7, the Corporation shall not -- and
         the Corporation shall not permit any other corporation or legal entity
         directly or indirectly controlled by the Corporation (collectively,
         the "subsidiaries") to -- repurchase, redeem, retire or otherwise
         acquire any shares of  Junior Dividend Stock, Junior Liquidation
         Stock, or any warrants, rights, calls or options exercisable for or
         convertible into any shares of Junior Dividend Stock or Junior
         Liquidation Stock, except by conversion into or exchange for shares of
         Junior Dividend Stock or Junior Liquidation Stock and other than
         purchases, redemptions, retirements or acquisitions made pursuant to
         and as required by the terms of any employee incentive or benefit plan
         of the Corporation or any subsidiary of the Corporation in effect on
         July 24, 1996 or as amended or adopted by the Corporation with
         approval of the Executive Committee of the Corporation.
         Notwithstanding the preceding sentence, any subsidiary which is wholly
         owned by the Corporation may repurchase, redeem, retire or otherwise
         acquire shares of its stock.

                 6.       Redemption at Option of the Corporation.

                          (a)     So long as shares of Common Stock shall have
         traded on the Primary Exchange (defined below) (i) for at least forty
         (40) of the forty-five (45) trading days (each of which trading days
         shall be after the third anniversary of the Original Issue Date (the
         "Third Anniversary")) immediately preceding the Determination Date
         (defined below), and (ii) on each of the ten (10) consecutive trading
         days immediately prior to the Determination Date (defined below), at a
         Closing Price (as hereinafter defined) in excess of the Hurdle
         Percentage (defined below) of the conversion price then in effect for
         the Series B Cumulative Convertible Preferred Stock for each such
         trading day, all, but not less than all, of Series B Cumulative
         Convertible Preferred Stock may thereafter be redeemed at the election
         of the Board of Directors made on any date (the "Determination Date")
         on or after the Third Anniversary, for the Redemption Price (defined
         below in Section 7(b)), plus an amount in cash equal to accrued and
         unpaid dividends thereon, whether or not authorized or declared, to
         but excluding the date fixed for redemption.  For purposes of the
         determination of the Board called for in the





                                     - 7 -
<PAGE>   20
         preceding sentence, the Designated Directors (defined below in Section
         13) shall not vote. The date on which such shares shall be redeemed
         shall be a date that is at least ten (10), but no more than thirty
         (30), business days after the Determination Date (during which period
         the holders of the Series B Cumulative Convertible Preferred Stock
         may, but shall not be required to, convert such stock into Common
         Stock).  The Hurdle Percentage shall be 150% from and after the Third
         Anniversary, and to the fifth anniversary of the Original Issue Date;
         thereafter, the Hurdle Percentage shall be 125%.  "Primary Exchange"
         shall mean the American Stock Exchange or such other principal
         national securities exchange or quotation system on which the Common
         Stock of the Corporation is quoted or listed or admitted to trading.

                          (b)     Not more than thirty (30) nor less than ten
         (10) business days prior to the redemption date fixed by the Board of
         Directors, the Corporation shall give notice by hand or overnight
         courier to the holders of record of shares of the Series B Cumulative
         Convertible Preferred Stock to be redeemed, addressed to such holders
         at their last addresses as shown upon the stock transfer books of the
         Corporation.  Each such notice of redemption shall specify the date
         fixed for redemption; the Redemption Price (defined below in Section
         7(b)) plus an amount in cash equal to accrued and unpaid dividends
         thereon, whether or not authorized or declared, to but excluding the
         date fixed for redemption; the place or places of payment; that
         payment will be made upon presentation and surrender of the shares of
         Series B Cumulative Convertible Preferred Stock; that on and after the
         redemption date dividends will cease to accrue on such shares; the
         then effective conversion price pursuant to Section 8; and that the
         right of holders to convert shares of Series B Cumulative Convertible
         Preferred Stock shall terminate at the close of business on the
         business day prior to the redemption date (unless the Corporation
         defaults in the payment of the Redemption Price plus an amount in cash
         equal to accrued and unpaid dividends thereon, whether or not
         authorized or declared, to but excluding the date fixed for
         redemption).

                          (c)     Any notice as herein provided shall be deemed
         to be given when delivered to the address specified in the preceding
         section. On or after the date fixed for redemption as stated in such
         notice, each holder of the shares called for redemption, unless such
         holder has exercised such holder's right to convert shares of Series B
         Cumulative Convertible Preferred Stock as provided above, shall
         surrender the certificate representing such shares to the Corporation
         at the place designated in such notice and shall thereupon be entitled
         to receive payment of the Redemption Price (defined below in Section
         7(b)) plus an amount in cash equal to accrued and unpaid dividends
         thereon, whether or not authorized or declared, to but excluding the
         date fixed for redemption.  If less than all the shares





                                     - 8 -
<PAGE>   21
         evidenced by any such surrendered certificate are redeemed, a new
         certificate shall be  issued representing the unredeemed shares.
         Notice having been given as aforesaid, if, on the date fixed for
         redemption, funds necessary for the redemption shall be available
         therefor and shall have been irrevocably deposited or set aside in
         trust for the holders of the shares of Series B Cumulative Convertible
         Preferred Stock, then, notwithstanding that the certificates
         representing any shares so called for redemption shall not have been
         surrendered, dividends with respect to the shares so called shall
         cease to accrue after the date fixed for redemption, such shares shall
         no longer be deemed outstanding, the holders thereof shall cease to be
         stockholders of the Corporation and all rights whatsoever with respect
         to the shares so called for redemption (except the right of the
         holders to receive the Redemption Price plus an amount in cash equal
         to accrued and unpaid dividends thereon, whether or not authorized or
         declared, to but excluding the date fixed for redemption, without
         interest upon surrender of their certificates therefor) shall
         terminate.  If funds legally available for such purpose are not
         sufficient for redemption of the shares of Series B Cumulative
         Convertible Preferred Stock to be redeemed, then the certificates
         representing such shares shall be deemed not to be surrendered, such
         shares shall remain outstanding and the rights of holders of shares of
         Series B Cumulative Convertible Preferred Stock thereafter shall
         continue to be only those of a holder of shares of the Series B
         Cumulative Convertible Preferred Stock.

                          (d)     Except as provided in Section 7, the shares
         of Series B Cumulative Convertible Preferred Stock shall not be
         subject to the operation of any mandatory purchase, retirement or
         sinking fund.

                 7.       Mandatory Repurchase and Repurchase at Option of the
                          Holder.

                          (a)     On the eighth anniversary of the Original
         Issue Date, the Corporation shall purchase from each holder of shares
         of Series B Cumulative Convertible Preferred Stock one-third of the
         number of shares of the Series B Cumulative Convertible Preferred
         Shares held by such holder on such eighth anniversary.   On the ninth
         anniversary of the Original Issue Date, the Corporation shall purchase
         from each holder of shares of Series B Cumulative Convertible
         Preferred Stock one-half of the number of shares of the Series B
         Cumulative Convertible Preferred Shares held by such holder on such
         ninth anniversary.  On the tenth anniversary of the Original Issue
         Date, the Corporation  shall purchase from each holder of shares of
         Series B Cumulative Convertible Preferred Stock the number of shares
         of the Series B Cumulative Convertible Preferred Shares held by such
         holder on such tenth anniversary.  Repurchases made pursuant to this
         Section 7(a) shall be effected on such anniversary date (or such other
         day as the





                                     - 9 -
<PAGE>   22
         holder and the Corporation may agree) and shall be for the Redemption
         Price (defined below in Section 7(b)) plus an amount in cash equal to
         the accrued and unpaid dividends thereon, whether or not authorized or
         declared, to but excluding the date fixed for repurchase.  Any shares
         of Series B Cumulative Convertible Preferred Stock which would have
         accrued but have not been paid on any shares tendered for purchase
         shall be deemed to be tendered for purchase.

                          (b)     (i)   If one or more Special Defaults
         shall occur at any time or from time to time on or after the Original
         Issue Date, each holder of shares of the Series B Cumulative
         Convertible Preferred Stock shall have the right, at such holder's
         option exercisable at any time within 120 days after the happening of
         each such Special Default, to require the Corporation to purchase all
         or any part of the shares of Series B Cumulative Convertible Preferred
         Stock then held by such holder as such holder may elect at the
         Redemption Price (defined below) plus, in each case, an amount in cash
         equal to the accrued and unpaid dividends thereon, whether or not
         authorized or declared, to but excluding the date fixed for
         redemption. Any shares of Series B Cumulative Convertible Preferred
         Stock which would have accrued but have not been paid on any shares
         tendered for purchase shall be deemed to be tendered for purchase.
         The "Redemption Price" shall be the Liquidation Preference where there
         have been no Special Defaults, and -- after there has been one or more
         Special Defaults -- shall be 130% of the greater of the Liquidation
         Preference or the market value of the Common Stock (valued at the
         average of the Closing Prices on the preceding twenty (20) trading
         days immediately prior to the occurrence of the Special Default) into
         which the Series B Cumulative Convertible Preferred Stock would then
         be convertible assuming such shares to be immediately convertible
         (whether or not such shares were then actually convertible);

                                  (ii)  A "Special Default" shall mean any
         of the following events which occur after the Original Issuance Date
         and while any shares of the Series B Cumulative Convertible Preferred
         Stock are outstanding:

                                        (1)     the disbanding or other
         restructuring, reorganization, or reconstitution (including without
         limitation change in the number of members) of the Executive Committee
         of the Board without the prior written approval of a majority of the
         members of the Executive Committee who were members prior to such
         change (and, for so long as the holders of the Series B Cumulative
         Convertible Preferred Stock shall have the right to designate more
         than one director to the Executive Committee pursuant to Section 13(b)
         below, including the members so designated by the holders of the
         Series B Cumulative Convertible Preferred Stock);





                                     - 10 -
<PAGE>   23
                                        (2)     the taking of any of the
         following actions by the Corporation or the Board without the approval
         of a majority of the members of the Executive Committee of the Board
         (whether or not such action was taken by the Board in view of its
         fiduciary duties pursuant to the last sentence of Section 3.3(A) of
         the By-Laws of the Corporation, as amended): (A)  any borrowing or
         guarantee by the Corporation exceeding $15 million, (B) except for
         issuance of stock or stock options pursuant to the Corporation's
         incentive compensation plans or programs, any issuance of stock
         (whether common or preferred, whether voting or non-voting, whether
         junior, pari passu, or senior to the Series B Cumulative Convertible
         Preferred Stock) other than Common Stock of the Corporation in an
         aggregate amount not exceeding five percent (5%) of the Common Stock
         of the Corporation issued and outstanding on the Original Issue Date,
         (C) any strategic alliance (other than a construction joint venture)
         involving a capital commitment by the Corporation exceeding $5
         million, (D) any asset sale by the Corporation or lease as lessor
         exceeding $5 million (other than equipment dispositions in the normal
         course of business); (E) any redemption or amendment of the Rights
         (defined below) or the preferred stock of the Corporation issuable
         upon the exercise of such Rights, or any amendment of the Rights
         Agreement (defined below), and (F) any termination of (other than a
         termination upon expiration) or amendment to the management agreement
         between the Corporation and Tutor-Saliba Corporation; provided,
         however, that for purposes of this Section 8(b)(ii)(2), approval of
         the Executive Committee shall not be required for any decision by the
         Board of Directors to redeem the Series B Cumulative Convertible
         Preferred Stock pursuant to Section 6(a);


                                        (3)     any change by the Corporation
         in the composition of the Executive Committee of the Board which
         results in members of such Committee selected by the holders of the
         Series B Cumulative Convertible Preferred Stock pursuant to Section
         13(b) below being fewer than the number of directors that the holders
         of the Series B Cumulative Convertible Preferred Stock are then
         entitled to designate pursuant to that provision or the failure of the
         Corporation to nominate for director the persons designated by the
         holders of the Series B Cumulative Convertible Preferred Stock in
         accordance with Section 13(a) below; or

                                        (4)     solely for purposes of the
         right to elect additional directors pursuant to Section 9(b) and not
         for purposes of any other Section, the failure of the Corporation to
         authorize, declare, and pay dividends payable in Series B Cumulative
         Convertible Preferred Stock when due in accordance with Section 3.





                                     - 11 -
<PAGE>   24
                          (c)     The date fixed for each such repurchase shall
         be (x) the anniversary of the Original Issue Date immediately
         succeeding the notice given pursuant to Section 7(a), or (y) the 121st
         day following the occurrence of the Special Default giving rise to a
         repurchase pursuant to Section 7(b).  The place of payment shall be at
         an office or agency in Boston, Massachusetts fixed therefor by the
         Corporation or, if not fixed, at the principal executive office of the
         Corporation.

                          (d)     The Corporation shall, within 20 days of the
         occurrence of a Special Default, give a written notice thereof by
         registered or certified mail, postage prepaid, return receipt
         requested, to the holders of record of shares of the Series B
         Cumulative Convertible Preferred Stock, addressed to such holders at
         their last addresses as shown upon the stock transfer books of the
         Corporation. Each such notice shall specify the Special Default which
         has occurred and the date of such occurrence, the place or places of
         payment, the then effective conversion price pursuant to Section 8,
         the then effective repurchase price and the date the right of such
         holder to require such repurchase shall terminate.  Any notice that is
         mailed as herein provided shall be conclusively presumed to have been
         duly given, whether or not the holder of shares of Series B Cumulative
         Convertible Preferred Stock receives such notice; and failure to give
         such notice by mail, or any defect in such notice, to the holders  of
         any shares shall not affect the validity of the proceedings for the
         repurchase of any other shares of Series B Cumulative Convertible
         Preferred Stock.

                          (e)     (i)   On the date fixed for any such
         repurchase, each holder of shares of Series B Cumulative Convertible
         Preferred Stock who elects to have shares of Series B Cumulative
         Convertible Preferred Stock held by it purchased shall surrender the
         certificate representing such shares to the Corporation at the place
         designated in such notice together with an election to have such
         purchase made and shall thereupon be entitled to receive payment
         therefor provided in this Section 7.  If less than all the shares
         represented by any such surrendered certificate are repurchased, a new
         certificate shall be issued representing the unpurchased shares.
         Dividends with respect to the shares of Series B Cumulative
         Convertible Preferred Stock so purchased shall cease to accrue after
         the date so purchased, such shares shall no longer be deemed
         outstanding after such date and the holders thereof shall cease to be
         stockholders of the Corporation and all rights whatsoever with respect
         to the shares so purchased shall terminate.





                                     - 12 -
<PAGE>   25
                                  (ii)  If the funds legally available for
         such purchase are not sufficient to purchase all the shares of Series
         B Cumulative Convertible Preferred Stock tendered to the Corporation
         for purchase, the Corporation shall purchase the greatest number of
         whole shares for which such funds are so available on a pro rata basis
         among all tendering holders based on the ratio of the number of shares
         tendered by each of them to the aggregate amount of all shares so
         tendered, and the certificates representing the unpurchased shares
         shall be deemed not to be surrendered for repurchase, such unpurchased
         shares shall remain outstanding and the rights of the holders of
         shares of Series B Cumulative Convertible Preferred Stock thereafter
         shall continue to be those of a holder of shares of the Series B
         Cumulative Convertible Preferred Stock; provided, however, the
         Corporation shall thereafter be required to repurchase all such
         remaining shares at the first date it has sufficient funds legally
         available for such purpose at the price it would have paid at the date
         such shares were actually tendered and the Corporation shall give
         notice as aforesaid to each holder whose shares were not repurchased
         for such reason and such holder shall thereafter have the right to
         elect to have such shares repurchased, such election to be made within
         30 days of receipt of such notice.  For purposes of this Section, the
         Corporation shall be deemed not to have sufficient funds legally
         available for any such purchase if the Board of Directors reasonably
         determines that immediately after such repurchase the Corporation
         would be insolvent.

                                  (iii) For so long as there remain shares
         of Series B Cumulative Convertible Preferred Stock that have been
         surrendered for repurchase in accordance with this Section 7 that have
         not been so repurchased by the Corporation:  (1) the number of members
         of the Board of Directors shall be increased by such number as is
         necessary to allow the election of the directors specified in clause
         (2) of this Section, and (2) the holders of the Series B Cumulative
         Convertible Preferred Stock, voting separately as a class, shall have
         the right to elect an additional number of directors to the Board of
         Directors such that the Designated Directors (defined below in Section
         13) who are serving on the Board of Directors, plus the directors
         elected by such holders voting as a class under this clause,
         constitute a majority of Board.  The right of the holders of the
         Series B Cumulative Convertible Preferred Stock to vote for such
         additional directors shall terminate when shares of the Series B
         Cumulative Convertible Preferred Stock properly tendered for
         repurchase pursuant to this Section 7 have been repurchased.  The term
         of office of all directors so elected shall terminate immediately upon
         the termination of the right of the holders of the Series B Cumulative
         Convertible Preferred Stock to vote for such additional directors, and
         the number of directors of the Board of Directors shall immediately
         thereafter be reduced.





                                     - 13 -
<PAGE>   26
                                  (iv)  The foregoing right of the holders
         of the Series B Cumulative Convertible Preferred Stock with respect to
         the election of additional directors may be exercised at each annual
         meeting of stockholders or at any special meeting of stockholders held
         for such purpose.  If the right to elect additional directors shall
         have accrued to the holders of the Series B Cumulative Convertible
         Preferred Stock more than thirty (30) days preceding the date
         established for the next annual meeting of stockholders, the President
         of the Corporation shall, within five (5) days after the delivery to
         the Corporation at its principal office of a written request for a
         special meeting signed by the holders of at least 10% of all
         outstanding shares of the Series B Cumulative Convertible Preferred
         Stock, call a special meeting of the holders of the Series B
         Cumulative Convertible Preferred Stock to be held as promptly as
         practicable after the delivery of such  request for the purpose of
         electing such additional directors.

                                  (v)   The holders of the Series B
         Cumulative Convertible Preferred Stock voting as a class shall have
         the right to remove with or without cause at any time and replace any
         directors such holders shall have elected pursuant to this Section 7
         and the holders of each other class of stock of the Corporation shall
         not have the right to remove any such directors.

                 8.       Conversion.

                          (a)     Right of Conversion.  Each share of Series B
         Cumulative Convertible Preferred Stock, whether issued originally or
         in-kind as a dividend payment, shall be convertible at the option of
         the holder thereof, at any time (provided, however, that where the
         Corporation has elected to redeem such stock, the option of the holder
         described in this section must be exercised prior to the close of
         business on the business day prior to the date fixed for redemption of
         such share as herein provided), into fully paid and nonassessable
         shares of Common Stock and such other securities and property as
         hereinafter provided, at the rate of that number of shares of Common
         Stock for each full share of Series B Cumulative Convertible Preferred
         Stock that is equal to the Liquidation Preference plus an amount in
         cash equal to the accrued and unpaid dividends thereon, whether or not
         authorized or declared, divided by the conversion price applicable per
         share of Common Stock.  For purposes of this Section 8(a), the
         "conversion price" applicable per share of Common Stock shall
         initially be equal to Nine Dollars and Sixty-Eight Cents ($9.68), and
         shall be adjusted from time to time after the Original Issue Date in
         accordance with the provisions of this Section 8.





                                     - 14 -
<PAGE>   27
                          (b)     Conversion Procedures.

                                  (i)   Any holder of shares of Series B
         Cumulative Convertible Preferred Stock desiring to convert such shares
         into Common Stock shall surrender the certificate or certificates
         representing such shares of Series B Cumulative Convertible Preferred
         Stock at the office of the transfer agent for the Series B Cumulative
         Convertible Preferred Stock, which certificate or certificates, if the
         Corporation shall so require, shall be duly endorsed to the
         Corporation or in blank, or accompanied by proper instruments of
         transfer to the Corporation or in blank, accompanied by irrevocable
         written notice to the Corporation that the holder elects so to convert
         such shares of Series B Cumulative Convertible Preferred Stock and
         specifying the name or names (with address or addresses) in which a
         certificate or certificates evidencing shares of  Common Stock are to
         be issued.

                                  (ii)  Subject to Section 8(k) hereof, no
         payments or adjustments in respect of dividends on shares of Series B
         Cumulative Convertible Preferred Stock surrendered for conversion or
         on account of any dividend on the Common Stock issued upon conversion
         shall be made upon the conversion of any shares of Series B Cumulative
         Convertible Preferred Stock.

                                  (iii) The Corporation shall, as soon as
         practicable after such deposit of certificates representing shares of
         Series B Cumulative Convertible Preferred Stock accompanied by the
         written notice and compliance with any other conditions herein
         contained, deliver at such office of the transfer agent to the person
         for whose account such shares of Series B Cumulative Convertible
         Preferred Stock were so surrendered or to the nominee or nominees of
         such person certificates representing the number of full shares of
         Common Stock to which such person shall be entitled as aforesaid,
         together with a cash adjustment in respect of any fraction of a share
         of Common Stock as hereinafter provided.  Subject to the following
         provisions of this paragraph, such conversion shall be deemed to have
         been made as of the date of such surrender of the shares of Series B
         Cumulative Convertible Preferred Stock to be converted, and the person
         or persons entitled to receive the Common Stock deliverable upon
         conversion of such Series B Cumulative Convertible Preferred Stock
         shall be treated for all purposes as the record holder or holders of
         such Common Stock on such date.

                          (c)     Adjustment of Conversion Price.  The
         conversion price at which a share of Series B Cumulative Convertible
         Preferred Stock is convertible into Common Stock shall be subject to
         adjustment from time to time as follows:





                                     - 15 -
<PAGE>   28
                                  (i)   (1)     In case the Corporation
         shall pay or make a dividend or other distribution on its Common Stock
         exclusively in Common Stock or shall pay or make a dividend or other
         distribution on any other class of stock of the Corporation which
         dividend or distribution includes Common Stock or shall exchange
         outstanding Rights (as defined in Section 8(j) hereof) for shares of
         Common Stock, the conversion price in effect at the opening of
         business on the day following the date fixed for the determination of
         stockholders entitled to receive such dividend or other distribution
         or to exchange such Rights shall be reduced by multiplying such
         conversion price by a fraction of which the numerator shall be the
         number of shares of Common Stock outstanding at the close of business
         on the date fixed for such determination and the denominator shall be
         the sum of such number of shares and the total number of shares
         constituting such dividend or other distribution or exchange, such
         reduction to become effective immediately after the opening of
         business on the day following the date fixed for such determination.

                                        (2)     In case the Corporation shall
         issue or otherwise sell or distribute shares of Common Stock for a
         consideration per share in cash or property less than the most recent
         Closing Price prior to the time of such issuance (and, if shares are
         issued, sold, or distributed pursuant to the exercise or conversion of
         options, warrants, convertible securities, or other rights, the
         exercise or conversion price thereof when such options, warrants,
         convertible securities, or rights were granted or issued was less than
         the Closing Price (defined below in Section 8(h) at the time of
         issuance of such options, warrants, convertible securities, or other
         rights), the conversion price then in effect shall be reduced by
         multiplying such conversion price by a fraction of which the numerator
         shall be the number of shares of Common Stock outstanding immediately
         prior to such issuance, sale or distribution plus the number of shares
         of Common Stock which the aggregate consideration received by the
         Corporation for such issuance, sale or distribution (such
         consideration, if other than cash, as determined by the Board of
         Directors, whose determination shall be conclusive and described in a
         vote of the Board of Directors) would purchase at the current market
         price per share and the denominator shall be the number of shares of
         Common Stock outstanding immediately after giving effecting to such
         issuance, sale or distribution.

                                  (ii)  In case the Corporation shall pay or
         make a dividend or other distribution on its Common Stock consisting
         exclusively of, or shall otherwise issue to all or substantially all
         holders of its Common Stock, rights or warrants entitling the holders
         thereof to subscribe for or purchase shares of





                                     - 16 -
<PAGE>   29
         Common Stock at  a price per share less than the then current market
         price per share (determined as provided in subparagraph (vii) of this
         Section 8(c)) of the Common Stock on the date fixed for the
         determination of stockholders entitled to receive such rights or
         warrants, the conversion price in effect at the opening of business on
         the day following the date fixed for such determination shall be
         reduced by multiplying such conversion price by a fraction of which
         the numerator shall be the number of shares of Common Stock
         outstanding at the close of business on the date fixed for such
         determination plus the number of shares of Common Stock which the
         aggregate of the offering price of the total number of shares of
         Common Stock so offered for subscription or purchase would purchase at
         such current market price and the denominator shall be the number of
         shares of Common Stock outstanding at the close of business on the
         date fixed for such determination plus the number of shares of Common
         Stock so offered for subscription or purchase, such reduction to
         become effective immediately after the opening of business on the day
         following the date fixed for such determination.  In case any rights
         or warrants referred to in this subparagraph (ii) in respect of which
         an adjustment shall have been made shall expire unexercised, the
         conversion price shall be readjusted at the time of such expiration to
         the conversion price that would have been in effect if no adjustment
         had been made on account of the distribution or issuance of such
         expired rights or warrants.  For the purposes of this Section
         8(c)(ii), if both a Distribution Date and a Section 11(a)(ii) Event
         (as such terms are defined in the Rights Agreement by and between the
         Corporation and the First National Bank at Boston, dated as of
         September 23, 1988, as amended (the "Rights  Agreement")) shall have
         occurred, then the later to occur of such events shall be deemed to
         constitute an issuance of rights to purchase shares of Common Stock.

                                  (iii) In case outstanding shares of Common
         Stock shall be subdivided into a greater number of shares of Common
         Stock, the conversion price in effect at the opening of business on
         the day following the day upon which such subdivision becomes
         effective shall be proportionately reduced, and conversely, in case
         outstanding shares of Common Stock shall each be combined into a
         smaller number of shares of Common Stock, the conversion price in
         effect at the opening of business on the day following the day upon
         which such combination becomes effective shall be proportionately
         increased, such reduction or increase, as the case may be, to become
         effective immediately after the opening  of business on the day
         following the day upon which such subdivision or combination becomes
         effective.

                                  (iv)  (1)     In case the Corporation
         shall, by dividend or otherwise, make a Section 8(c)(iv) Distribution
         (defined below in Section 8(h)) to





                                     - 17 -
<PAGE>   30
         all or substantially all holders of its Common Stock, the conversion
         price shall be reduced so that the same shall equal the price
         determined by multiplying the conversion price in effect immediately
         following the close of business on the Determination Date (as defined
         in Section 8(h)) by a fraction of which the numerator shall be the
         current market price per share (determined as provided in subparagraph
         (vii) of this Section 8(c)) of the Common Stock on the Determination
         Date less the fair market value (as determined by the Board of
         Directors, whose determination shall be conclusive and described in a
         resolution of the Board of Directors), on the date of such
         effectiveness, of the portion of the Section 8(c)(iv) Distribution so
         distributed applicable to one share of Common Stock and the
         denominator shall be such current market price per share of the Common
         Stock, such reduction to become effective immediately prior to the
         opening of business on the day following the Determination Date.  If
         the Board of Directors so determines as aforesaid the fair market
         value of any distribution for purposes of this subparagraph (iv) by
         reference to the actual or when-issued trading market for any
         Securities comprising such distribution, it must in doing so consider
         the prices in such market over the same period used in computing the
         current market price per share of Common Stock pursuant to
         subparagraph (vii) of this Section 8(c).

                                        (2)     Notwithstanding the foregoing,
         if the Corporation elects to reserve, for distribution to the holders
         of the Series B Cumulative Convertible Preferred Stock upon the
         conversion of the shares of Series B Cumulative Convertible Preferred
         Stock, the evidences of the Corporation's indebtedness, shares of any
         class of stock, or assets that would have been distributed to the
         holders of the Series B Cumulative Convertible Preferred Stock if they
         had converted their shares into shares of Common Stock so that any
         such holder converting shares of Series B Cumulative Convertible
         Preferred Stock will receive upon such conversion, in addition to the
         shares of the Common Stock to which such holder is entitled, the
         amount and kind of such evidences of the Corporation's indebtedness,
         shares of any class of stock, or assets which such holder would have
         received if such holder  had, immediately prior to the Determination
         Date for such distribution of securities, converted its shares of
         Series B Cumulative Convertible Preferred Stock into Common Stock, the
         fair market value of the Securities shall, for purposes of this
         subparagraph (iv), be deemed to be zero.

                                  (v)   Subject to the last sentence of this
         subparagraph (v), in case the Corporation shall, by dividend or
         otherwise, at any time distribute to all holders of its Common Stock
         cash (excluding any cash representing an amount per share of capital
         stock of the Corporation to the extent such cash does not





                                     - 18 -
<PAGE>   31
         constitute an Extraordinary Equity Payment), the conversion price
         shall be reduced so that the same shall equal the price determined by
         multiplying the conversion price in effect immediately prior to the
         effectiveness of the conversion price reduction contemplated by this
         subparagraph (v) by a fraction of which the numerator shall be the
         current market price per share (determined as provided in subparagraph
         (vii) of this Section 8(c)) of the Common Stock on the Determination
         Date less the amount of cash so distributed and not excluded as above
         provided applicable to one share of Common Stock and the denominator
         shall be such current market price per share of the Common Stock, such
         reduction to become effective immediately prior to the opening of
         business on the day following the Determination Date.  Notwithstanding
         the foregoing, if the Corporation elects to reserve the cash to be
         distributed for distribution to the holders of the Series B Cumulative
         Convertible Preferred Stock upon the conversion of the shares of
         Series B Cumulative Convertible Preferred Stock so that any such
         holder converting shares of Series B Cumulative Convertible Preferred
         Stock will receive upon such conversion, in addition to the shares of
         the Common Stock to which such holder is entitled, the amount of cash
         which such holder would have received if such holder had, immediately
         prior to the Determination Date for such distribution of cash,
         converted its shares of Series B Cumulative Convertible Preferred
         Stock into Common Stock, then the conversion price shall not be so
         reduced.

                                  (vi)  In case a tender or exchange offer
         made by the Corporation or any subsidiary of the Corporation for all
         or any portion of the Corporation's Common Stock shall expire and such
         tender or exchange offer shall involve the payment by the Corporation
         or such subsidiary of consideration per share of Common Stock having a
         fair market value (as determined by the  Board of Directors, whose
         determination shall be conclusive and described in a resolution of the
         Board of Directors) at the last time (the "Expiration Time") tenders
         or exchanges may be made pursuant to such tender or exchange offer (as
         it shall have been amended) that exceeds the current market price per
         share (determined as provided in subparagraph (vii) of this Section
         8(c)) of the Common Stock on the Trading Day next succeeding the
         Expiration Time, the conversion price shall be reduced so that the
         same shall equal the price determined by multiplying the conversion
         price in effect immediately prior to the Expiration Time by a fraction
         of which the numerator shall be the number of shares of Common Stock
         outstanding (including any tendered or exchanged shares) on the
         Expiration Time multiplied by the current market price per share
         (determined as provided in subparagraph (vii) of this Section 8(c)) of
         the Common Stock on the Trading Day next succeeding the Expiration
         Time and the denominator shall be the sum of (x) the fair market value
         (determined as





                                     - 19 -
<PAGE>   32
         aforesaid) of the aggregate consideration payable to stockholders
         based on the acceptance (up to any maximum specified in the terms of
         the tender or exchange offer) of all shares validly tendered or
         exchanged and not withdrawn as of the Expiration Time (the shares
         deemed so accepted, up to any such maximum, being referred to as the
         "Purchased Shares") and (y) the product of the number of shares of
         Common Stock outstanding (less any Purchased Shares) on the Expiration
         Time and the current market price per share (determined as provided in
         subparagraph (vii) of this Section 8(c)) of the Common Stock on the
         Trading Day next succeeding the Expiration Time, such reduction to
         become effective immediately prior to the opening of business on the
         day following the Expiration Time.

                                  (vii) For purposes of any computation
         under this section, the current market price per share of Common Stock
         on any date shall be deemed to be the volume-weighted average trading
         price of the Common Stock for the five-day period before the earlier
         of the day in question and the "ex" date with respect to any issuance
         or distribution requiring such computation; provided, however, that
         for purposes of clause (3) of this paragraph, the current market price
         per share shall be deemed to be the volume-weighted average trading
         price of the Common Stock for the five-day period after the "ex date."
         For purposes of this subparagraph (vii), the term "ex" date, (1) when
         used with respect to any issuance or distribution, means the first
         date on which the Common Stock trades regular way on the relevant
         exchange or in the relevant market from which the Closing Price was
         obtained without the right to receive such issuance or distribution,
         (2) when used with respect to any subdivision or combination of shares
         of Common Stock, means the first date on which the Common Stock trades
         regular way on such exchange or in such market after the time at which
         such subdivision or combination becomes effective, and (3) when used
         with respect to any tender or exchange offer, means the first date on
         which the Common Stock trades regular way on such exchange or in such
         market after the Expiration Time of such offer.

                                 (viii) The Corporation may make such
         reductions in the conversion price, in addition to those required by
         subparagraphs (i), (ii), (iii), (iv), (v) and (vi) of this Section
         8(c), as it considers to be advisable to avoid or diminish any income
         tax to holders of Common Stock or rights to purchase Common Stock
         resulting from any dividend or distribution of stock (or rights to
         acquire stock) or from any event treated as such for income tax
         purposes.

                                  (ix)  No adjustment in the conversion
         price shall be required unless such adjustment would require an
         increase or decrease of at least 1% in the conversion price; provided,
         however, that any adjustments which by





                                     - 20 -
<PAGE>   33
         reason of this subparagraph (ix) are not required to be made shall be
         carried forward and taken into account in any subsequent adjustment.

                                  (x)   Notwithstanding any other provision
         of this Section 8 and without implication that the contrary would
         otherwise be true, no issuance, dividend or distribution requiring
         adjustment of the conversion price pursuant to Section 8(c) hereof
         shall be deemed to have occurred in the event that, upon, following or
         in connection with the redemption or expiration of the Rights or the
         termination of the Rights Agreement or otherwise, the Corporation
         enters into a new agreement that is comparable in purpose and effect
         to the Rights Agreement (as determined by the Board of Directors,
         whose determination shall be conclusive) and distributes rights to
         purchase Preferred Stock (or other similar stock purchase rights under
         such agreement that are attached to the Common Stock) to the holders
         of Common Stock.

                                  (xi)  Whenever the conversion price is
         adjusted as herein provided:

                                        (1)     the Corporation shall compute
         the adjusted conversion price and shall prepare a certificate signed
         by the Treasurer of the Corporation setting forth the adjusted
         conversion price and showing in reasonable detail the acts upon which
         such adjustment is based, and such certificate shall forthwith be
         filed with the transfer agent for the Series B Cumulative Convertible
         Preferred Stock; and

                                        (2)     a notice stating the conversion
         price has been adjusted and setting forth the adjusted conversion
         price shall forthwith be required, and as soon as practicable after it
         is required, such notice shall be mailed by the Corporation to all
         record holders of shares of Series B Cumulative Convertible Preferred
         Stock at their last addresses as they shall appear upon the stock
         transfer books of the Corporation.

                          (d)     No Fractional Shares.  No fractional shares
         or scrip representing fractional shares of Common Stock shall be
         issued upon conversion of Series B Cumulative Convertible Preferred
         Stock.  If more than one certificate representing shares of Series B
         Cumulative Convertible Preferred Stock shall be surrendered for
         conversion at one time by the same holder, the number of full shares
         issuable upon conversion thereof shall be computed on the basis of the
         aggregate number of shares of Series B Cumulative Convertible
         Preferred Stock so surrendered.  Instead of any fractional share of
         Common Stock that would otherwise be issuable upon conversion of any
         shares of Series B Cumulative





                                     - 21 -
<PAGE>   34
         Convertible Preferred Stock, the Corporation shall pay a cash
         adjustment in respect of such fractional interest in an amount equal
         to the same fraction of the market price per share of Common Stock (as
         determined by the Board of Directors or in any manner prescribed by
         the Board of Directors, which, so long as the Common Stock is listed
         on the Primary Exchange, shall be the reported last sale price regular
         way on the Primary Exchange) at the close of business on the day of
         conversion.

                          (e)     Reclassification, Consolidation, Merger, or
         Sale of Assets. If any capital reorganization or reclassification of
         the capital stock of the Corporation, or consolidation or merger of
         the Corporation with another corporation, or the sale of all or
         substantially all of its assets to another corporation shall be
         effected in such a way that holders of Common Stock shall be entitled
         to receive stock, securities, cash or other property with respect to
         or in exchange for Common Stock, then, as a  condition of such
         reorganization, reclassification, consolidation, merger or sale,
         lawful and adequate provision shall be made whereby the holders of the
         Series B Cumulative Convertible Preferred Stock shall have the right
         to acquire and receive upon conversion of the Series B Cumulative
         Convertible Preferred Stock, which right shall be pari passu with the
         rights of holders of Parity Dividend Stock and senior to the rights of
         the holders of Junior Dividend Stock and Junior Liquidation Stock (but
         after and subject to the rights of holders of Senior Dividend Stock
         and Senior Liquidation Stock, if any), such shares of stock,
         securities, cash or other property issuable or payable (as part of the
         reorganization, reclassification, consolidation, merger or sale) with
         respect to or in exchange for such number of outstanding shares of
         Common Stock as would have been received upon conversion of the Series
         B Cumulative Convertible Preferred Stock at the conversion price then
         in effect, whether or not such stock is then convertible.  The
         Corporation will not effect any such consolidation, merger or sale,
         unless prior to the consummation thereof the successor corporation (if
         other than the Corporation) resulting from such consolidation or
         merger or the corporation purchasing such assets shall assume by
         written instrument in reasonable and customary form mailed or
         delivered to the holders of the Series B Cumulative Convertible
         Preferred Stock at the last address of each such holder appearing on
         the books of the Corporation, the obligation to deliver to each such
         holder such shares of stock, securities or assets as, in accordance
         with the foregoing provisions, such holder may be entitled to
         purchase.





                                     - 22 -
<PAGE>   35
                          (f)     Reservation of Shares; Transfer Taxes; Etc.

                                  (i)   The Corporation shall at all times
         reserve and keep available, out of its authorized and unissued stock,
         solely for the purpose of effecting the conversion of the Series B
         Cumulative Convertible Preferred Stock, such number of shares of its
         Common Stock or Common Stock free of preemptive rights as shall from
         time to time be sufficient to effect the conversion of all shares of
         Series B Cumulative Convertible Preferred Stock from time to time
         outstanding. The Corporation shall from time to time, in accordance
         with the laws of the State of Massachusetts, increase the number of
         authorized shares of Common Stock if at any time the number of shares
         of authorized and unissued Common Stock shall not be sufficient to
         permit the conversion of all the then  outstanding shares of Series B
         Cumulative Convertible Preferred Stock.

                                  (ii)  If any shares of Common Stock
         required to be reserved for purposes of conversion of the Series B
         Cumulative Convertible Preferred Stock hereunder require registration
         with or approval of any governmental authority under any Federal or
         State law before such shares may be issued upon conversion, the
         Corporation will in good faith and as expeditiously as possible
         endeavor to cause such shares to be duly registered or approved, as
         the case may be.  If the Common Stock is listed on the American Stock
         Exchange or any other national securities exchange or national
         quotation service, the Corporation will list and keep listed on such
         exchange, upon official notice of issuance, all shares of Common Stock
         issuable upon conversion of the shares of Series B Cumulative
         Convertible Preferred Stock.

                                  (iii) The Corporation shall pay any and
         all issue or other taxes that may be payable in respect of any issue
         or delivery of shares of Common Stock on conversion of the Series B
         Cumulative Convertible Preferred Stock.  The Corporation shall not,
         however, be required to pay any tax which may be payable in respect of
         any transfer involved in the issue or delivery of Common Stock (or
         other securities or assets) in a name other than that in which the
         shares of Series B Cumulative Convertible Preferred Stock so converted
         were registered, and no such issue or delivery shall be made unless
         and until the person requesting such issue has paid to the Corporation
         the amount of such tax or has established, to the satisfaction of the
         Corporation, that such tax has been paid.





                                     - 23 -
<PAGE>   36
                          (g)     Prior Notice of Certain Events. In case:

                                  (i)   the Corporation shall declare or
         authorize a redemption or repurchase of in excess of five percent of
         the then outstanding shares of Common Stock; or

                                  (ii)  the Corporation shall authorize the
         granting to all holders of Common Stock of rights or warrants to
         subscribe for or purchase any shares of stock of any class or of any
         other rights or warrants (other than pursuant to the Rights Agreement
         or, following the redemption or expiration of the Rights or the
         termination of the Rights Agreement, any new  shareholder rights
         agreement that is comparable in purpose and effect to the Rights
         Agreement); or

                                  (iii) of any reclassification of Common
         Stock (other than a subdivision or combination of the outstanding
         Common Stock, or a change in par value, or from par value to no par
         value, or from no par value to par value), or of any consolidation or
         merger to which the Corporation is a party and for which approval of
         any stockholders of the Corporation shall be required, or of the sale
         or transfer of all or substantially all of the assets of the
         Corporation or of any compulsory share exchange whereby the Common
         Stock is converted into other securities, cash or other property; or

                                  (iv)  of the voluntary or involuntary 
         dissolution, liquidation or winding up of the Corporation;

         then the Corporation shall cause to be filed with the transfer agent
         for the Series B Cumulative Convertible Preferred Stock, and shall
         cause to be mailed to the holders of record of the Series B Cumulative
         Convertible Preferred Stock, at their last addresses as they shall
         appear upon the stock transfer books of the Corporation, at least
         fifteen days prior to the applicable record date hereinafter
         specified, a notice stating, as the case may be, (x) the record date
         (if any) for the purpose of such dividend, distribution, redemption,
         repurchase or granting of rights or warrants or, if no record date is
         to be set, the date as of which the holders of Common Stock of record
         to be entitled to such dividend, distribution, redemption, rights or
         warrants are to be determined or (y) the date on which such
         reclassification, consolidation, merger, sale, transfer, share





                                     - 24 -
<PAGE>   37
         exchange, dissolution, liquidation or winding up is expected to become
         effective, and the date, if any, as of which it is expected that
         holders of shares of Common Stock of record shall be entitled to
         exchange their shares of Common Stock for securities or other property
         deliverable upon such reclassification, consolidation, merger, sale,
         transfer, share exchange, dissolution, liquidation or winding up (but
         no failure to mail such notice or any defect therein or in the mailing
         thereof shall affect the validity of the corporate action required to
         be specified in such notice).

                          (h)     Definitions.  The following definitions shall
         apply to terms used in this Section 8:


                                  (i)   "Closing Price" on any day shall
         mean the closing sale price regular way on such day or, in case no
         such sale takes place on such day, the average of the reported closing
         bid and asked prices regular way, in each case on the Primary
         Exchange, or, if not quoted or listed or admitted to trading on any
         national securities exchange or quotation system, the average of the
         closing bid and asked prices of the Common Stock on the
         over-the-counter market on the day in question as reported by the
         National Quotation Bureau Incorporated, or a similarly generally
         accepted reporting service, or if not so available in such manner, as
         furnished by any American Stock Exchange member firm selected from
         time to time by the Board of Directors of the Corporation for that
         purpose.

                                  (ii)  "Determination Date" shall mean,
         with respect to any dividend, distribution or other transaction or
         event in which the holders of Common Stock have the right to receive
         any cash, securities or other property or assets or in which the
         Common Stock (or other applicable security) is exchanged for or
         converted into any combination of cash, securities or other property,
         the date fixed for determination of stockholders entitled to receive
         such cash, securities or other property or assets (whether such date
         is fixed by the Board of Directors or by statute, contract or
         otherwise).

                                  (iii) "Extraordinary Equity Payment" shall
         mean:

                                        (1)     the declaration or payment on
         or after the Original Issue Date by the Corporation, or any of its
         subsidiaries of any dividend or distribution on any class or series of
         its stock other than:

                                                (A)      any dividend or 
         distribution from one subsidiary of the Corporation to a
         wholly-owned subsidiary of the Corporation or from a subsidiary of the
         Corporation to the Corporation; provided that all of such dividend
         paid or distribution made, net of applicable withholding taxes, is
         received by the Corporation, or such recipient subsidiary;

                                                (B)      any regularly scheduled
         (whether or not overdue) periodic cash dividend on the $21.25
         Preferred Stock and Series B





                                     - 25 -
<PAGE>   38
         Cumulative Convertible Preferred Stock in accordance with the terms
         thereof as in effect on the Original Issue Date;

                                                (C)      any cash dividends on 
         the Common Stock or other capital stock after September 1, 2001 that do
         not exceed in aggregate more than twenty-five percent (25%) of the
         Corporation's consolidated net income available for distribution to
         common shareholders (after preferred dividends); provided, however,
         that the Corporation shall have elected, for the preceding four fiscal
         quarters, to pay cash dividends on the Series B Cumulative Convertible
         Preferred Stock and shall have paid in full such dividends in cash
         when due;

                                        (2)     any repurchases, redemptions,
         retirements or other acquisitions directly or indirectly by the
         Corporation or any of its subsidiaries on or after the Original Issue
         Date of any stock of the Corporation or any of its subsidiaries (other
         than a wholly-owned subsidiary) (other than redemptions or repurchases
         of the Series B Cumulative Convertible Preferred Stock in accordance
         with Sections 6 and 7).

                                  (iv)  "Fundamental Change" shall mean the
         occurrence of any transaction or event in connection with a plan or
         agreement to which, in either case, the Corporation is a party
         pursuant to which all or substantially all of the shares of Common
         Stock shall be exchanged for, converted into, acquired for or
         constitute solely the right to receive cash, securities, property or
         other assets (whether by means of an exchange offer, liquidation,
         tender offer, consolidation, merger, combination, reclassification,
         recapitalization or otherwise); provided, however, in the case of a
         plan involving more than one such transaction or event, for purposes
         of adjustment of the conversion price, such Fundamental Change shall
         be deemed to have occurred when substantially all of the shares of
         Common Stock of the Corporation shall be exchanged for, converted into
         or acquired for or constitute solely the right to receive cash,
         securities, property or other assets, but the adjustment shall be
         based upon the consideration which the holders of Common Stock
         received in such transaction or event as a result of which more than
         50% of the shares of Common Stock of the Corporation shall have been
         exchanged for, converted into, or acquired for or constitute solely
         the right to receive cash, securities, property or other assets;
         provided, further, that such term does not include (i) any such
         transaction or event in which the Corporation and/or any of its
         subsidiaries are the issuers of all the cash, securities, property or
         other assets exchanged, acquired or otherwise issued in such
         transaction or  event, or (ii) any such transaction or event in which
         the holders of Common Stock receive securities of an issuer other than
         the Corporation if, immediately following such





                                     - 26 -
<PAGE>   39
         transaction or event, such holders hold a majority of the securities
         having the power to vote normally in the election of directors of such
         other issuer outstanding immediately following such transaction or
         other event.

                                  (v)   "Section 8(c)(iv) Distribution"
         shall mean evidences of the Corporation's indebtedness, shares of any
         class of stock, or assets, including securities, but excluding any
         rights or warrants referred to in subparagraph (ii) of Section 8(c),
         excluding any dividend or distribution paid in cash, and excluding any
         dividend or distribution referred to in subparagraph (i) of Section
         8(c).

                                  (vi)  "Trading Day" shall mean a day on
         which the national securities exchange or the NASDAQ National Market
         System used to determine the Closing Price is open for the transaction
         of business or the reporting of trades.

                          (i)     Dividend or Interest Reinvestment Plans.
         Notwithstanding the foregoing provisions, the issuance of any shares
         of Common Stock pursuant to any plan providing for the reinvestment of
         dividends or interest payable on securities of the Corporation and the
         investment of additional optional amounts in shares of Common Stock
         under any such plan, and the issuance of any shares of Common Stock or
         options or rights to purchase such shares pursuant to any employee
         benefit plan or program of the Corporation or pursuant to any option,
         warrant, right or exercisable, exchangeable or convertible security
         issued or outstanding on the Original Issue Date (except as expressly
         provided in Section 8(c)(i) or 8(c)(ii) with respect to certain events
         under the Rights Agreement), and any issuance of Rights (defined
         below) or other rights referred to in Section 8(c)(x), shall not be
         deemed to constitute an issuance of Common Stock, options, warrants,
         rights, or exercisable, exchangeable or convertible securities by the
         Corporation or any of its subsidiaries to which any of the adjustment
         provisions described above in this Section 8 applies.  There shall
         also be no adjustment of the conversion price in case of the issuance
         of any stock (or options, warrants, rights, or securities convertible
         into or exchangeable or exercisable for stock) of the Corporation
         except as specifically described in this Section 8.  If any action
         would require adjustment of the conversion price pursuant to  more
         than one of the provisions described above, only one adjustment shall
         be made and such adjustment shall be the amount of adjustment which
         has the highest absolute value to the holders of Series B Cumulative
         Convertible Preferred Stock.

                          (j)     Preferred Share Purchase Rights.  So long as
         Preferred Share Purchase Rights, of the kind authorized and declared
         on September 23, 1988 and distributed by the Corporation in September
         1988 as the same have been





                                     - 27 -
<PAGE>   40
         and may hereafter be amended ("Rights"), are attached to the
         outstanding shares of Common Stock of the Corporation, each share of
         Common Stock issued upon conversion of the shares of Series B
         Cumulative Convertible Preferred Stock prior to the earliest of any
         Distribution Date (as defined in the Rights Agreement), the date of
         redemption of the Rights or the date of expiration of the Rights shall
         be issued with Rights in an amount equal to the amount of Rights then
         attached to each such outstanding share of Common Stock.

                          (k)     Certain Additional Rights.  In case the
         Corporation shall, by dividend or otherwise, authorize, declare or
         make a distribution on its Common Stock referred to in Section
         8(c)(iv) or Section 8(c)(v), the holder of each share of Series B
         Cumulative Convertible Preferred Stock, upon the conversion thereof
         subsequent to the close of business on the date fixed for the
         determination of stockholders entitled to receive such distribution
         and prior to the effectiveness of the conversion price adjustment in
         respect of such distribution pursuant to Section 8(c)(iv) or Section
         8(c)(v), shall be entitled to receive for each share of Common Stock
         into which such share of Series B Cumulative Convertible Preferred
         Stock is converted, the portion of the evidences of indebtedness,
         shares of stock, cash and assets so distributed applicable to one
         share of Common Stock; provided, however, that, at the election of the
         Corporation (whose election shall be evidenced by a vote of the Board
         of Directors) with respect to all holders so converting, the
         Corporation may, in lieu of distributing to such holder any portion of
         such distribution not consisting of cash or securities of the
         Corporation, pay such holder an amount in cash equal to the fair
         market value thereof (as determined by the Board of Directors, whose
         determination shall be conclusive and described in a vote of the Board
         of Directors).  If any conversion of a share of Series B Cumulative
         Convertible Preferred Stock described in the immediately preceding
         sentence occurs prior to the payment date for a distribution to
         holders of Common Stock which the holder of the share of Series B
         Cumulative Convertible Preferred Stock so converted is entitled to
         receive in accordance with the immediately preceding sentence, the
         Corporation may elect (such election to be evidenced by a resolution
         of the Board of Directors) to distribute to such holder a due bill for
         the evidences of indebtedness, shares of stock, cash or assets to
         which such holder is so entitled; provided that such due bill (i)
         meets any applicable requirements of the principal national securities
         exchange or other market on which the Common Stock is then traded and
         (ii) requires payment or delivery of such evidences of indebtedness,
         shares of stock, cash or assets no later than the date of payment or
         delivery thereof to holders of Common Stock receiving such
         distribution. The rights provided in this Section 8(k) with respect to
         distribution referred to in Section 8(c)(iv) or





                                     - 28 -
<PAGE>   41
         Section 8(c)(v) shall be in lieu of, and not in addition to, the
         rights accorded to holders of Series B Cumulative Convertible
         Preferred Stock in those Sections.

                          (l)     Other.  Notwithstanding any other provision
         in this Section 8 to the contrary, if the Corporation shall, by
         dividend or otherwise, authorize, declare or make a distribution on
         its Common Stock referred to in Section 8(c)(iv) and such distribution
         shall include shares of stock of one or more corporations that
         immediately prior to such distribution was or would have been a
         subsidiary (a "Spin-Off"), the holder of each share of Series B
         Cumulative Convertible Preferred Stock shall be entitled to receive
         its pro rata share of the securities distributed in the Spin-Off as if
         such holder had been the holder of record of the number of shares of
         Common Stock into which the Series B Cumulative Convertible Preferred
         Stock would be convertible (but for any restrictions on convertibility
         contained in this Certificate of Vote) as of the record date for such
         distribution.  The rights provided in this Section 8(l) with respect
         to Spin-Offs shall be in lieu of, and not in addition to, the rights
         accorded to holders of Series B Cumulative Convertible Preferred Stock
         with respect to Spin-Offs in Section 8(c)(iv).

                 9.       Voting Rights.

                          (a)     General.  The holders of shares of Series B
         Cumulative Convertible Preferred Stock shall each initially have
         Twenty and Sixty-Five Thousand Six Hundred and Forty-Eight
         Hundred-Thousandths (20.65648) votes for each share held, which such
         shares shall be  voted as a class with the holders of the Common Stock
         on all matters on which the Common Stock may vote, except as set forth
         below.  Upon the occurrence of any event that causes an adjustment to
         the conversion price pursuant to Section 8(c), the number of votes
         possessed by each share of Series B Cumulative Convertible Stock shall
         be adjusted such that the number of  votes possessed by each such
         share immediately after the event giving rise to the adjustment under
         Section 8(c) shall be equal to (x) the number of votes possessed by
         such share immediately preceding such event, multiplied by (y) the
         conversion price immediately preceding such event, divided by (z) the
         conversion price immediately after such event.  Any shares of Series B
         Cumulative Convertible Preferred Stock held by the Corporation or any
         entity controlled by the Corporation shall not have voting rights
         hereunder and shall not be counted in determining the presence of a
         quorum.





                                     - 29 -
<PAGE>   42
                          (b)     Special Default Voting Rights.

                                  (i)   Whenever a Special Default exists,
         (1) the number of members of the Board of Directors shall be increased
         by such number as is necessary to allow the election of the directors
         specified in clause (2), and (2) the holders of the Series B
         Cumulative Convertible Preferred Stock, voting separately as a class,
         shall have the right to elect an additional number of directors to the
         Board of Directors such that Designated Directors selected by the
         holders of the Series B Cumulative Convertible Preferred Stock, plus
         the directors elected by such holders voting as a class under this
         clause, constitute a majority of Board. Notwithstanding the foregoing
         sentence, the holders of the Series B Cumulative Convertible Preferred
         Stock (voting separately as a class) will not have the right to vote
         for additional directors pursuant to this Section 9(b) where (x) such
         holders have exercised their right to elect additional directors
         pursuant to Section 7(e)(iii), and (y) such additional directors
         continue to serve as such.  The right of the holders of the Series B
         Cumulative Convertible Preferred Stock to vote for such additional
         directors shall terminate at the earlier to occur of (A) when such
         Special Default no longer exists or (ii) two years after the election
         of directors pursuant to clause (2) of the first sentence of this
         Section.  The term of office of all directors so elected shall
         terminate immediately upon the termination of the right of the holders
         of the Series B Cumulative Convertible Preferred Stock to vote for
         such additional directors, and the number of directors of the Board of
         Directors shall immediately thereafter be  reduced.

                                  (ii)  The foregoing right of the holders
         of the Series B Cumulative Convertible Preferred Stock with respect to
         the election of additional directors may be exercised at each annual
         meeting of stockholders or at any special meeting of stockholders held
         for such purpose.  If the right to elect directors shall have accrued
         to the holders of the Series B Cumulative Convertible Preferred Stock
         more than thirty (30) days preceding the date established for the next
         annual meeting of stockholders, the President of the Corporation
         shall, within five (5) days after the delivery to the Corporation at
         its principal office of a written request for a special meeting signed
         by the holders of at least 10% of all outstanding shares of the Series
         B Cumulative Convertible Preferred Stock, call a special meeting of
         the holders of the Series B Cumulative Convertible Preferred Stock to
         be held as promptly as practicable after the delivery of such request
         for the purpose of electing such additional directors.

                                  (iii) The holders of the Series B
         Cumulative Convertible Preferred Stock referred to above voting as a
         class shall have the right to remove





                                     - 30 -
<PAGE>   43
         with or without cause at any time and replace any directors such
         holders shall have elected pursuant to this Section 9(c) and the
         holders of each other class of stock of the Corporation shall not have
         the right to remove any such directors.

                          (c)     Class Voting Rights.  So long as any shares
         of the Series B Cumulative Convertible Preferred Stock are
         outstanding, the Corporation shall not, directly or indirectly,
         without the affirmative vote or consent of the holders of at least 66
         2/3% (unless a higher percentage shall then be required by applicable
         law or the Corporation's Articles) of all outstanding shares of the
         Series B Cumulative Convertible Preferred Stock voting separately as a
         class:  (i) amend, alter or repeal any provision of the Articles,
         Certificate of Vote, or the bylaws of the Corporation, if such
         amendment, alteration or repeal would alter the contract rights, as
         expressly set forth herein, of the Series B Cumulative Convertible
         Preferred Stock or otherwise to adversely affect the rights of the
         holders thereof or the holders of the Common Stock, (ii) create,
         authorize or issue, or amend the terms of in a manner adversely affect
         the rights of the holders the Series B Cumulative Convertible
         Preferred Stock, or reclassify shares of any authorized stock of the
         Corporation into, or increase the authorized amount of, any Senior
         Dividend Stock, Senior Liquidation Stock, Parity Dividend Stock, or
         Parity Liquidation Stock or any security convertible into such senior
         or Parity Stock, or (iii) approve a Fundamental Change.

                 10.      Outstanding Shares.  For purposes of this Certificate
         of Vote, all shares of Series B Cumulative Convertible Preferred Stock
         issued by the Corporation shall be deemed outstanding except (i) from
         the date fixed for redemption pursuant to Section 6 hereof, all shares
         of Series B Cumulative Convertible Preferred Stock that have been so
         called for redemption under Section 6, to the extent provided
         thereunder; (ii) from the date of surrender of certificates
         representing shares of Series B Cumulative Convertible Preferred
         Stock, all shares of Series B Cumulative Convertible Preferred Stock
         converted into Common Stock or repurchased pursuant to Section 7
         hereof; and (iii) from the date of registration of transfer, all
         shares of Series B Cumulative Convertible Preferred Stock held of
         record by the Corporation or any majority-owned subsidiary of the
         Corporation.





                                     - 31 -
<PAGE>   44
                 11.      Transfer Restrictions.

                          (a)     Legends on Series B Cumulative Convertible
         Preferred Stock and Common Stock. The certificates representing shares
         of Series B Cumulative Convertible Preferred Stock shall, unless
         otherwise agreed by the Corporation and the holders of any such
         certificates, bear a legend substantially to the following effect:

                 "THE SHARES REPRESENTED BY THIS CERTIFICATE AND ANY SECURITIES
                 ISSUABLE UPON CONVERSION OR EXCHANGE HEREOF MAY NOT BE OFFERED
                 OR SOLD EXCEPT PURSUANT TO (i) AN EFFECTIVE REGISTRATION
                 STATEMENT UNDER THE SECURITIES ACT OF 1933, OR (ii) AN
                 APPLICABLE EXEMPTION FROM REGISTRATION THEREUNDER.  ANY SALE
                 PURSUANT TO CLAUSE (ii) OF THE PRECEDING SENTENCE MUST BE
                 ACCOMPANIED BY AN OPINION OF COUNSEL REASONABLY SATISFACTORY
                 TO PERINI CORPORATION TO THE EFFECT THAT SUCH EXEMPTION FROM
                 REGISTRATION IS AVAILABLE IN CONNECTION WITH SUCH SALE.  IN
                 ADDITION, THE VOTING, SALE, ASSIGNMENT, TRANSFER, PLEDGE OR
                 HYPOTHECATION OF THE SHARES REPRESENTED BY THIS CERTIFICATE IS
                 FURTHER SUBJECT TO RESTRICTIONS WHICH ARE CONTAINED IN THE
                 RESTATED ARTICLES OF ORGANIZATION OF PERINI  CORPORATION, IN
                 THE CERTIFICATE OF VOTE GOVERNING THESE SHARES AND IN A STOCK
                 PURCHASE AGREEMENT DATED AS OF JULY 24, 1996, AS AMENDED, A
                 COPY OF EACH OF WHICH IS ON FILE WITH PERINI CORPORATION AND
                 WILL BE FURNISHED BY THE CORPORATION TO THE STOCKHOLDER ON
                 REQUEST AND WITHOUT CHARGE."

                          (b)     Transfer Agent Requirements.  The transfer
         agent (which may be the Corporation) for the Series B Cumulative
         Convertible Preferred Stock shall not be required to accept for
         registration of transfer any shares of Series B Cumulative Convertible
         Preferred Stock bearing the legend contained in paragraph (a) above,
         except upon presentation of evidence satisfactory to transfer agent
         that the restrictions on transfer of shares of the Series B Cumulative
         Convertible Preferred Stock referred to in the legend in paragraph (a)
         have been





                                     - 32 -
<PAGE>   45
         complied with, all in accordance with such reasonable regulations as
         the Corporation may from time to time agree with the transfer agent
         for shares of the Series B Cumulative Convertible Preferred Stock.

                 12.      Status of Acquired Shares.  Shares of Series B
         Cumulative Convertible Preferred Stock redeemed or repurchased by the
         Corporation, received upon conversion pursuant to Section 8 or
         otherwise acquired by the Corporation will be restored to the status
         of authorized but unissued shares of Preferred Stock, without
         designation as to class, and may thereafter be issued, but not as
         shares of Series B Cumulative Convertible Preferred Stock.

                 13.      Special Covenants.

                          (a)     Nomination of Directors.  Effective as of the
         Original Issue Date, the Corporation shall elect to the board of
         directors three directors designated by the holders of such stock
         (such directors, together with their replacements as provided below,
         the "Designated Directors"), one of whom shall be a Class I director,
         one of whom shall be a Class II director, and one of whom shall be a
         Class III director.  The holders of a majority of the Series B
         Cumulative Convertible Preferred Stock shall designate the classes of
         such initial Designated Directors.

                                  (i)   In the event that any Designated
         Director shall resign, be unable to serve, or be removed (a "Replaced
         Designated Director"), the holders of a majority of the Series B
         Cumulative Convertible  Preferred Stock shall have the right to
         designate a replacement to serve as Designated Director until the next
         meeting of shareholders at which directors of the same class as the
         Replaced Designated Director are elected.  Any Designated Director may
         be removed from the Board, with or without cause, by the holders of a
         majority of the Series B Cumulative Convertible Preferred Stock.

                                  (ii)  Except as provided below, at any
         time when the term of a Designated Director shall have ended and there
         shall be a meeting of shareholders of the Corporation to elect
         directors, the Corporation shall nominate for election to the board of
         directors, as a successor to any Designated Director serving pursuant
         to Section 13(a) or clause (i) of such provision, such person as is
         designated to be a Designated Director by the holders of a majority of
         the Series B Cumulative Convertible Preferred Stock.

                                  (iii) In the event that the holders of the
         Series B Cumulative Convertible Preferred Stock dispose of such stock
         or Conversion





                                     - 33 -
<PAGE>   46
         Shares (defined below) representing more than sixty-six and two-thirds
         percent (66-2/3%) and less than or equal to eighty percent (80%) of
         the voting power of the Series B Cumulative Convertible Preferred
         Stock issued on the Original Issue Date (plus any payment-in-kind
         dividends paid thereon), the number of Designated Directors shall be
         reduced to two.  If there are then more than two Designated Directors
         serving on the board, the holders of a majority of the Series B
         Cumulative Convertible Preferred Stock shall remove one such
         Designated Director and the holders of such stock shall not have any
         right, pursuant to clause (ii) or otherwise, to cause the Corporation
         to nominate a designated successor to such removed director.

                                  (iv)  In the event that the holders of the
         Series B Cumulative Convertible Preferred Stock dispose of such stock
         or Conversion Shares representing more than eighty percent (80%) and
         less than or equal ninety percent (90%) of the voting power of the
         Series B Cumulative Convertible Preferred Stock issued on the Original
         Issue Date (plus any payment-in-kind dividends paid thereon), the
         number of Designated Directors shall be reduced to one.  If there is
         then more than one Designated Director serving on the board, the
         holders of a majority of the Series B Cumulative Convertible Preferred
         Stock shall remove all but one such Designated Director and the
         holders of such stock shall not have any right, pursuant to clause
         (ii) or  otherwise, to cause the Corporation to nominate a designated
         successor to such removed director(s).

                                  (v)   In the event that the holders of the
         Series B Cumulative Convertible Preferred Stock dispose of such stock
         or Conversion Shares representing more than ninety percent (90%) of
         the voting power of the Series B Cumulative Convertible Preferred
         Stock issued on the Original Issue Date (plus any payment-in-kind
         dividends paid thereon), there shall be no Designated Directors and
         any Designated Directors then serving on the board shall be removed,
         and their terms in office shall immediately expire, without any
         further action of the holders of such stock.

                                  (vi)  The right to nominate directors
         pursuant to this provision is in addition to, and not in limitation
         of, any other rights and powers of the Series B Cumulative Convertible
         Preferred Stock.  Directors nominated by the holders of the Series B
         Cumulative Convertible Preferred Stock in their capacity as holders of
         capital stock of the Corporation and not pursuant to clause (i), (ii),
         or (iii) above are not Designated Directors for purposes of this
         Certificate of Vote.

                                  (vii) The vote of the holders of Series B
         Cumulative Convertible Preferred Stock referred to in this Section may
         be exercised at a





                                     - 34 -
<PAGE>   47
         meeting of such holders or by written consent of holders with the
         requisite percentage of the voting power outstanding.

                                 (viii) Upon the reasonable request of the
         Corporation, the holders of the Series B Cumulative Convertible
         Preferred Stock shall certify in writing to the Corporation their
         holding of Conversion Shares.

                                  (ix)  For purposes of this Section:

                                        (1)     "voting power" shall mean the
         number of votes each such share possesses in the election of
         directors; and

                                        (2)     "Conversion Shares" shall mean
         the shares of Common Stock which are both (A) issuable or issued upon
         conversion of the Series B Cumulative Convertible Preferred Stock
         pursuant to the terms of this Certificate of Vote of Directors, and
         (B) held by a person who either (x) acquired the shares of the Series
         B Cumulative Convertible Preferred Stock from which the shares
         referred to in clause (A) of this definition  were converted and has
         held such Common Stock continuously thereafter, or (y) acquired the
         shares referred to in clause (A) of this definition from a person
         referred to in clause (B)(x) of this definition through a distribution
         to the partners by, or dissolution of, a partnership.

                          (b)     Appointment to Executive Committee.  At any
         time at which the holders of the Series B Cumulative Convertible
         Preferred Stock shall have the right to nominate directors for
         election to the board pursuant to Section 13(a) hereof, such holders
         shall also have the right to designate a like number of persons from
         among the members of the board of directors to be members of the
         Executive Committee of the board (the "Designated Executive Committee
         Members").  In the event that any Designated Executive Committee
         Member shall resign, be unable to serve, or be removed, the holders of
         a majority of the Series B Cumulative Convertible Preferred Stock
         shall have the right to designate a replacement Designated Executive
         Committee Member.  Any Designated Executive Committee Member may be
         removed from the Executive Committee, with or without cause, by the
         holders of a majority of the Series B Cumulative Convertible Preferred
         Stock.

                          (c)     Approval of Certain Actions.  Neither the
         Corporation nor the Board shall take any of the following actions
         without the approval of a majority of the members of the Executive
         Committee of the Board: (A)  any borrowing or guarantee by the
         Corporation exceeding $15 million, (B) except for





                                     - 35 -
<PAGE>   48
         issuance of stock or stock options pursuant to (x) the Corporation's
         incentive compensation plans and programs, (y) any warrants
         outstanding on the Original Issue Date, or (z) the Rights, any
         issuance of stock (whether common or preferred, whether voting or
         non-voting, whether junior, pari passu, or senior to the Series B
         Cumulative Convertible Preferred Stock) other than Common Stock in an
         aggregate amount not exceeding five percent (5%) of the Common Stock
         issued and outstanding on the Original Issue Date, (C) any strategic
         alliance (other than a construction joint venture) involving a capital
         commitment by the Corporation exceeding $5 million, (D) any asset sale
         by the Corporation or lease by it as lessor exceeding $5 million
         (other than equipment dispositions in the normal course of business);
         (E) any redemption or amendment of the Rights or the preferred stock
         of the Corporation issuable upon the exercise of such Rights, or any
         amendment of the Rights Agreement; and (F)  any termination of (other
         than a termination upon  expiration) or amendment to the management
         agreement between the Corporation and Tutor-Saliba Corporation;
         provided, however, that for purposes of this Section 13(c), approval
         of the Executive Committee shall not be required for any decision by
         the Board of Directors to redeem the Series B Cumulative Convertible
         Preferred Stock pursuant to Section 6(a).  Notwithstanding the
         foregoing sentence, the board of directors of the Corporation may take
         any of the actions specified in the preceding sentence if, after
         having consulted with and considered the advice of outside counsel, it
         has reasonably determined in good faith that the failure of the board
         to take such action would be likely to cause the members of such board
         to breach their fiduciary duties under applicable law.

                 14.      Severability of Provisions.  Whenever possible, each
         provision hereof shall be interpreted in a manner as to be effective
         and valid under applicable law, but if any provision hereof is held to
         be prohibited by or invalid under applicable law, such provision shall
         be ineffective only to the extent of such prohibition or invalidity,
         without invalidating or otherwise adversely affecting the remaining
         provisions hereof.  If a court of competent jurisdiction should
         determine that a provision hereof would be valid or enforceable if a
         period of time were extended or shortened or a particular percentage
         were increased or





                                     - 36 -
<PAGE>   49
         decreased, then such court may make such change as shall be necessary
         to render the provision in question effective and valid under
         applicable law.





                                     - 37 -
<PAGE>   50
                         REGISTRATION RIGHTS AGREEMENT


                 REGISTRATION RIGHTS AGREEMENT dated as of _____________ ___,
1996 between PERINI CORPORATION, a Massachusetts corporation (together with its
successors, the "Company"), PB CAPITAL PARTNERS, L.P. ("PB"), UNION LABOR LIFE
INSURANCE COMPANY SEPARATE ACCOUNT P ("Account P" and, together with PB, the
"Initial Stockholders").

                 WHEREAS, as required by the terms and conditions of the Stock
Purchase Agreement dated as of July 24, 1996, as amended (the "Stock
Agreement"), among the Company, PB, and Richard C. Blum & Associates, L.P.
("RCBA"), the Company shall issue to PB on the Closing (as defined in the Stock
Agreement), the Series B Preferred Stock (as defined herein) which such stock
is convertible into common stock of the Company, par value $1.00 per share;

                 WHEREAS, PB -- with the Company's consent -- has assigned its
rights and obligations under the Stock Agreement to acquire a portion of the
Series B Preferred Stock to Account P, and Account P has accepted such
assignment;

                 WHEREAS, the Company has agreed with the Initial Stockholders,
for their benefit and for the benefit of the other holders of the Series B
Preferred Stock and holders of Conversion Shares (as defined in the Stock
Agreement) to provide certain rights as set forth herein;

                 NOW THEREFORE the parties hereto agree as follows:


                                   ARTICLE I

                                  DEFINITIONS

                 SECTION 1.1.  Definitions.  Unless otherwise defined herein,
the following terms used in this Agreement shall have the meanings specified
below.

                 "Account P" has the meaning set forth in the introductory
paragraph hereof.

                 "Affiliate" means, with respect to any Person, any of (i) a
director or executive officer of such Person, (ii) a spouse, parent, sibling or
descendant of such Person (or a spouse, parent, sibling or descendant of any
director or executive officer of such Person) and (iii) any other Person that,
directly or indirectly, controls, or is controlled by or is under common
control with such Person.  For the purpose of this definition, "control"
(including the terms "controlling", "controlled by" and "under common control
with"), as used with respect to any Person, means the possession,





<PAGE>   51
directly or indirectly, of the power to direct or cause the direction of the
management or policies of such Person, whether through the ownership of voting
securities or by contract or agency or otherwise.

                 "Business Day" means a day except a Saturday, Sunday or other
day on which commercial banks in New York City are authorized by law to close.

                 "Common Stock" means the common stock, par value $1.00 per 
share, of the Company.

                 "Company" has the meaning set forth in the introductory
paragraph hereof.

                 "Conversion Shares" means (i) any shares of Common Stock or
other securities issued or issuable upon the conversion of any shares of Series
B Preferred Stock; (ii) the shares of Common Stock or other securities issued
to PB as a participation fee in connection with PB's purchase of a 100%
participation interest in a $10,000,000 extension of credit to the Company
pursuant to the Bridge Credit Agreement dated as of February 26, 1996 among
Perini Corporation ("Perini"), the Bridge Banks listed in the Bridge Credit
Agreement, and Morgan Guaranty Trust Company of New York, as Agent, as amended
through November __, 1996; or (iii) any securities issued or issuable with
respect to any of such shares or other securities referred to in clause (i) or
(ii) upon the conversion thereof into other securities or by way of stock
dividend or stock split or in connection with a combination of shares,
recapitalization, merger, consolidation or other reorganization or otherwise;
provided that any of such securities shall cease to be Conversion Shares when
such securities shall have (x) been disposed of pursuant to a Public Sale or
(y) ceased to be outstanding.

                 "Deferral Period" has the meaning set forth in Section 2.1(d).

                 "Effectiveness Period" means the period commencing on the date
hereof and ending on the date that all Conversion Shares shall have ceased to
be Registrable Securities.

                 "Exchange Act" means the Securities Exchange Act of 1934, or
any successor Federal statute, and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time.  Reference to a
particular section of the Securities Exchange Act of 1934 shall include a
reference to the comparable section, if any, of any such successor Federal
statute.

                 "Filing Date" has the meaning set forth in Section 2.1(a).

                 "Initial Stockholders" has the meaning set forth in the 
introductory paragraph hereof.





                                       2
<PAGE>   52
                 "Initial Shelf Registration" has the meaning set forth in
Section 2.1(a).

                 "Initiating Holders" has the meaning set forth in Section
2.1(a) hereof.

                 "Managing Underwriters" means the investment banking firm or
firms that shall manage or co-manage an Underwritten Offering.

                 "Notice Holder" means a holder of Registrable Securities who
has given notice of intention to distribute such holder's Registrable
Securities in accordance with Section 2.1(d).

                 "PB" has the meaning set forth in the introductory paragraph
hereof.

                 "Person" means an individual, a corporation, a partnership, a
limited liability partnership, a limited liability company, an association, a
trust or any other entity or organization, including a government or political
subdivision or an agency or instrumentality thereof.

                 "Prospectus" means the prospectus included in any Registration
Statement (including, without limitation, a prospectus that discloses
information previously omitted from a prospectus filed as part of an effective
registration statement in reliance upon Rule 430A promulgated under the
Securities Act), as amended or supplemented by any amendment or prospectus
supplement, including post-effective amendments, and all material incorporated
by reference or deemed to be incorporated by reference in such Prospectus.

                 "Public Sale" means any sale of Common Stock to the public
pursuant to an offering registered under the Securities Act or to the public
through a broker, dealer or market maker pursuant to the provisions of Rule 144
(or any successor provision then in effect) adopted under the Securities Act.

                 "Registrable Securities" means any Conversion Shares until the
date (if any) when (i) such Conversion Shares shall have been transferred or
exchanged and new certificates for them not bearing a legend restricting
further transfer shall have been delivered by the Company or (ii) if requested
to do so, the Company would be required to deliver certificates for such
Conversion Shares not bearing a legend restricting further transfer, and, in
each case, subsequent disposition of such Conversion Shares shall not require
registration or qualification under the Securities Act or any similar state law
then in force.

                 "Registration Statement" means any registration statement of
the Company which covers any of the Registrable Securities pursuant to the
provisions of this Agreement, including the Prospectus, amendments and
supplements to such registration statement, including post-effective
amendments, all exhibits, and all material





                                       3
<PAGE>   53
incorporated by reference or deemed to be incorporated by reference in such
registration statement.

                 "Restricted Securities" means the Series B Preferred Stock,
the Conversion Shares and any securities obtained upon exchange for or upon
conversion or transfer of or as a distribution on Series B Preferred Stock, the
Conversion Shares or any such securities; provided that particular securities
shall cease to be Restricted Securities when such securities shall have (x)
been disposed of pursuant to a Public Sale, (y) been otherwise transferred or
exchanged and new certificates for them not bearing a legend restricting
further transfer shall have been delivered by the Company and subsequent
disposition of them shall not require registration or qualification of them
under the Securities Act or any similar state law then in force or (z) ceased
to be outstanding.

                 "Rule 144" means Rule 144 under the Securities Act, as such
Rule may be amended from time to time, or any similar rule or regulation
hereafter adopted by the SEC.

                 "Rule 144A" means  Rule 144A under the Securities Act, as such
Rule may be amended from time to time, or any similar rule or regulation
hereafter adopted by the SEC.

                 "SEC" means the Securities and Exchange Commission or any
other Federal agency at the time administering the Securities Act.

                 "Securities Act" means the Securities Act of 1933, or any
similar Federal statute, and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time.  Reference to a
particular section of the Securities Act of 1933 shall include a  reference to
the comparable section, if any, of any such similar Federal statute.

                 "Selling Period" has the meaning set forth in Section 2.1(d).

                 "Series B Preferred Stock" means the Series B Cumulative
Convertible Preferred Stock originally issued to the Initial Stockholders in
accordance with the Stock Agreement, as such stock may be transferred or
otherwise assigned, but only to the extent not theretofore converted, redeemed
or expired in accordance with their respective terms.

                 "Series B Securityholder" means at any time any Stockholder 
or any holder of Conversion Shares.

                 "Shelf Registration" has the meaning set forth in Section
2.1(a).

                 "Special Counsel" means any law firm retained from time to
time by the holders of a majority of the Registrable Securities to be sold
pursuant to a Registration





                                       4
<PAGE>   54
Statement or during any Selling Period, as shall be specified by such holders
to the Company; provided that at no time there shall be more than one Special
Counsel the fees and expenses of which will be paid by the Company pursuant to
Section 2.4.

                 "Stock Agreement" has the meaning set forth in the recitals.

                 "Subsequent Shelf Registration" has the meaning set forth in 
Section 2.1(b).

                 "Stockholder" means a holder of Series B Preferred Stock.

                 "Underwritten Offering" means a registration in which
Registrable Securities are sold or to be sold to one or more underwriters for
reoffering to the public.


                                   ARTICLE II

                              REGISTRATION RIGHTS

                 SECTION 2.1  Shelf Registration.

                 (a)      As soon as practicable but in any event not later
than the date (the "Filing Date") that is sixty (60) days after receipt by the
Company of a written request by the holder or holders of a majority of all
outstanding Conversion Shares and Series B Preferred Stock (such  majority
determined, for purposes of this Section 2.1, based on the aggregate number of
Conversion Shares then outstanding plus the number of Conversion Shares into
which any outstanding shares of Series B Preferred Stock are then convertible)
(the "Initiating Holders"), the Company shall prepare and file with the SEC a
Registration Statement for an offering to be made on a delayed or continuous
basis pursuant to Rule 415 of the Securities Act (a "Shelf Registration")
registering the resale from time to time by the holders thereof of all of the
Registrable Securities upon and following conversion of the Series B Preferred
Stock (the "Initial Shelf Registration"). The Registration Statement for any
Shelf Registration shall be on Form S-3 or another appropriate form permitting
registration of such Registrable Securities for resale by such holders in the
manner or manners designated by them (including, without limitation, one or
more Underwritten Offerings).  The Company shall use its reasonable efforts to
cause the Initial Shelf Registration to become effective under the Securities
Act as promptly as is practicable and to keep the Initial Shelf Registration
continuously effective under the Securities Act until the end of the
Effectiveness Period.

                 (b)      If the Initial Shelf Registration or any Subsequent
Shelf Registration (as defined below) ceases to be effective for any reason at
any time during the Effectiveness Period (other than because all Registrable
Securities shall have been sold or shall have ceased to be Registrable
Securities), the Company shall use all





                                       5
<PAGE>   55
reasonable efforts to obtain the prompt withdrawal of any order suspending the
effectiveness thereof, and in any event shall within thirty days of such
cessation of effectiveness amend the Shelf Registration in a manner reasonably
expected to obtain the withdrawal of the order suspending the effectiveness
thereof, or file an additional Shelf Registration covering all of the
Registrable Securities (a "Subsequent Shelf Registration").  If a Subsequent
Shelf Registration is filed, the Company shall use all reasonable efforts to
cause the Subsequent Shelf Registration to become effective as promptly as is
practicable after such filing and to keep such Registration Statement
continuously effective until the end of the Effectiveness Period.

                 (c)      The Company shall supplement and amend the Shelf
Registration if required by the rules, regulations or instructions applicable
to the registration form used by the Company for such Shelf Registration, if
required by the Securities Act, or if reasonably requested by any holder of the
Registrable Securities covered by such Registration Statement or by any
Managing Underwriter of such Registrable Securities.

                 (d)      Each Series B Securityholder agrees that if it
wishes to sell any Registrable Securities pursuant to a Shelf Registration and
related Prospectus, it will do so only in accordance with this Section 2.1(d).
Each holder of Registrable Securities agrees to give written notice to the
Company at least six Business Days prior to any intended distribution of
Registrable Securities under the Shelf Registration, which notice shall specify
the date on which such holder intends to begin such distribution and any
information with respect to such holder and the intended distribution of
Registrable Securities by such holder required to amend or supplement the
Registration Statement with respect to such intended distribution of
Registrable Securities by such holder; provided that no holder may give such
notice unless such notice, together with notices given by other holders of
Registrable Securities joining in such notice or giving similar notices, covers
at least 30,000 Conversion Shares.  As promptly as is practicable after the
date such notice is provided, and in any event within five Business Days after
such date, the Company shall either:

                 (i)      (A) prepare and file with the SEC a post-effective
         amendment to the Shelf Registration or a supplement to the related
         Prospectus or a supplement or amendment to any document incorporated
         therein by reference or any other required document, so that such
         Registration Statement will not contain any untrue statement of a
         material fact or omit to state a material fact required to be stated
         therein or necessary to make the statements therein not misleading,
         and so that, as thereafter delivered to purchasers of the Registrable
         Securities being sold thereunder, such Prospectus will not contain any
         untrue statement of a material fact or omit to state a material fact
         required to be stated therein or necessary to make the statements
         therein, in light of the circumstances under which they were made, not
         misleading; (B) provide each Notice Holder a copy of any documents
         filed pursuant to Section 2.1(d)(i)(A); and (C) inform each Notice
         Holder that the Company has complied with its obligations in Section
         2.1(d)(i)(A) and that the





                                       6
<PAGE>   56
         Registration Statement and related Prospectus may be used for the
         purpose of selling all or any of such Registrable Securities (or that,
         if the Company has filed a post-effective amendment to the Shelf
         Registration which has not yet been declared effective, the Company
         will notify each Notice Holder to that effect, will use all reasonable
         efforts to secure the effectiveness of such post-effective amendment
         and will immediately so notify each Notice Holder when the amendment
         has become effective); each Notice Holder will sell all or any or such
         Registrable Securities pursuant to the Shelf Registration and related
         Prospectus only during the 45-day period  commencing with the date on
         which the Company gives notice, pursuant to Section 2.1(d)(i)(C), that
         the Registration Statement and Prospectus may be used for such purpose
         (such 45-day period is referred to as a "Selling Period"); each Notice
         Holder agrees that it will not sell any Restricted Securities pursuant
         to such Registration Statement or Prospectus after such Selling Period
         without giving a new notice of intention to sell pursuant to Section
         2.1(d) hereof and receiving a further notice from the Company pursuant
         to Section 2.1(d)(i)(C) hereof; or

                 (ii)      if, in the judgment of the Company, it is advisable
         to suspend use of the Prospectus for a period of time due to pending
         material corporate developments or similar material events that have
         not yet been publicly disclosed and as to which the Company believes
         public disclosure will be prejudicial to the Company, the Company
         shall deliver a certificate in writing, signed by its Chief Executive
         Officer, Chief Financial Officer or General Counsel, to the Notice
         Holders, the Special Counsel and the Managing Underwriters, if any, to
         the effect of the foregoing and, upon receipt of such certificate,
         each such Notice Holder's Selling Period will not commence until such
         Notice Holder's receipt of copies of the supplemented or amended
         Prospectus provided for in Section 2.1(d)(i)(A) hereof, or until it is
         advised in writing by the Company that the Prospectus may be used, and
         has received copies of any additional or supplemental filings that are
         incorporated or deemed incorporated by reference in such Prospectus.
         The Company will use all reasonable efforts to ensure that the use of
         the Prospectus may be resumed, and the Selling Period will commence,
         upon the earlier of (x) public disclosure of such pending material
         corporate development or similar material event or (y) a determination
         by the Company that, in the judgment of the Company, public disclosure
         of such material corporate development or similar material event would
         not be prejudicial to the Company.  Notwithstanding the foregoing, the
         Company shall not under any circumstances be entitled to exercise its
         right under this Section 2.1(d) to defer the commencement of a Selling
         Period more than one time in any three-month period or two times in
         any twelve-month period, and the period in which a Selling Period is
         suspended shall not exceed fifteen days unless the Company shall
         deliver to such Notice Holders a second certificate to the effect set
         forth above, which shall have the effect of extending the period
         during which such Selling Period is deferred by up to an additional
         fifteen days, or such shorter period of time as is specified in such
         second





                                       7
<PAGE>   57
         certificate.  In no event  shall the Company be permitted to extend
         the period during which such Selling Period is deferred from and after
         the date a Notice Holder provides notice to the Company in accordance
         with this Section 2.1(d) of its intention to distribute Registrable
         Securities (a "Deferral Period") beyond such 30-day period.

                 SECTION 2.2.  Registration Procedures.  In connection with the
Company's registration obligations under Section 2.1 hereof, the Company shall
effect such registrations to permit the sale of the Registrable Securities in
accordance with the intended method or methods of disposition thereof, and
pursuant thereto the Company shall as expeditiously as possible:

                 (a)      Prepare and file with the SEC a Registration
Statement or Registration Statements on any appropriate form under the
Securities Act available for the sale of the Registrable Securities by the
holders thereof in accordance with the intended method or methods of
distribution thereof, and use its reasonable efforts to cause each such
Registration Statement to become effective and remain effective as provided
herein; provided, that before filing any such Registration Statement or
Prospectus or any amendments or supplements thereto (other than documents that
would be incorporated or deemed to be incorporated therein by reference and
that the Company is required by applicable securities laws or stock exchange
requirements to file) the Company shall furnish to the Initial Stockholders,
the Initiating Holders, the Special Counsel and the Managing Underwriters of
such offering, if any, copies of all such  documents proposed to be filed,
which documents will be subject to the review of the Initial Stockholders, the
Initiating Holders, the Special Counsel and such Managing Underwriters, and the
Company shall not file any such Registration Statement or amendment thereto or
any Prospectus or any supplement thereto (other than such documents which, upon
filing, would be incorporated or deemed to be incorporated by reference therein
and that the Company is required by applicable securities laws or stock
exchange requirements to file) to which the holders of a majority of the
Registrable Securities covered by such Registration Statement, the Initial
Stockholders, the Initiating Holders or the Special Counsel shall reasonably
object in writing within two full Business Days.

                 (b)      Prepare and file with the SEC such amendments and
post-effective amendments to each Registration Statement as may be necessary to
keep such Registration Statement continuously effective for the applicable
period specified in Section 2.1; cause the related Prospectus to be
supplemented by any required Prospectus supplement, and as so supplemented to
be filed pursuant to Rule 424 (or any similar provisions then in force) under
the Securities Act; and comply with the provisions of the Securities Act with
respect to the disposition of all securities covered by such Registration
Statement during the applicable period in accordance with the intended methods
of disposition by the sellers thereof set forth in such Registration Statement
as so amended or such Prospectus as so supplemented.





                                       8
<PAGE>   58
                 (c)      Notify the selling Series B Securityholders, the
Initial Stockholders, the Initiating Holders, the Special Counsel and the
Managing Underwriters, if any, promptly, and (if requested by any such person)
confirm such notice in writing, (i) when a Prospectus, any Prospectus
supplement, a Registration Statement or a post-effective amendment to a
Registration Statement has been filed with the SEC, and, with respect to a
Registration Statement or any post-effective amendment, when the same has
become effective, (ii) of any request by the SEC or any other federal or state
governmental authority for amendments or supplements to a Registration
Statement or related Prospectus or for additional information, and of the
contents of such request, (iii) of the issuance by the SEC or any other federal
or state governmental authority of any stop order suspending the effectiveness
of a Registration Statement or the initiation or threatening of any proceedings
for that purpose, (iv) of the receipt by the Company of any notification with
respect to the suspension of the qualification or exemption from qualification
of any of the Registrable Securities for sale in any jurisdiction or the
initiation or threatening of any proceeding for such purpose, (v) of the
existence of any fact or happening of any event which makes any statement of a
material fact in such Registration Statement or related Prospectus or any
document incorporated or deemed to be incorporated therein by reference untrue
or which would require the making of any changes in the Registration Statement
or Prospectus in order that, in the case of the Registration Statement, it will
not contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary to make the statements
therein not misleading, and that in the case of the Prospectus, it will not
contain any untrue statement of a material fact or omit to state any material
fact or omit to state any material fact required to be stated therein or
necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading, provided that the Company shall not
be required to disclose such fact or event if such fact or event has not been
publicly disclosed, and (vi) of the Company's determination that a
post-effective amendment to a Registration Statement would be appropriate.

                 (d)      Use all reasonable efforts to obtain the withdrawal
of any order suspending the effectiveness of a Registration Statement, or the
lifting of any suspension of the qualification (or exemption from
qualification) of any of the Registrable Securities for sale in any
jurisdiction, at the earliest possible moment.

                 (e)      If reasonably requested by an Initial Stockholder,
the Initiating Holders, the Special Counsel, the Managing Underwriters, if any,
or the holders of a majority of the Registrable Securities being sold, (i)
promptly incorporate in a Prospectus supplement or post-effective amendment to
a Registration Statement such information as the Initial Stockholders, the
Initiating Holders, the Special Counsel, the Managing Underwriters, if any, or
such holders, in connection with any offering of Registrable Securities, agree
should be included therein as required by applicable law, and (ii) make all
required filings of such Prospectus supplement or such post-effective amendment
as promptly as is practicable after the Company has received notification of
the matters to be incorporated in such Prospectus supplement or post-effective
amendment; provided, that





                                       9
<PAGE>   59
the Company shall not be required to take any actions under this Section 2.2(e)
that are not, in the reasonable opinion of counsel for the Company, in
compliance with or required by applicable law.

                 (f)      Furnish to each selling Series B Securityholder, the
Special Counsel, the Initial Stockholders, and each Managing Underwriter, if
any, without charge, at least one conformed copy of the Registration Statement
or Statements and any amendment thereto, including financial statements but
excluding schedules, all documents incorporated or deemed to be incorporated
therein by reference and all exhibits (unless requested in writing by such
Series B Securityholder, Special Counsel, Initial Stockholders, or Managing
Underwriter).

                 (g)      Deliver to each selling holder of Registrable
Securities, the Special Counsel, the Initial Stockholders, and each Managing
Underwriter, if any, in connection with any offering of Registrable Securities,
without charge, as many copies of the Prospectus or Prospectuses relating to
such Registrable Securities (including each preliminary prospectus) and any
amendment or supplement thereto as such persons may reasonably request; and the
Company hereby consents to the use of such Prospectus or each amendment or
supplement thereto by each of the selling holders of Registrable Securities and
the underwriters, if any, in connection with any offering and sale of the
Registrable Securities covered by such Prospectus or any amendment or
supplement thereto.

                 (h)      Prior to any public offering of Registrable
Securities, to register or qualify or cooperate with the selling Series B
Securityholders, the Managing Underwriters, if any, and the Special Counsel in
connection with the registration or qualification (or exemption from such
registration or qualification) of such Registrable Securities for offer and
sale under the securities or Blue Sky laws of such jurisdictions within the
United States as any selling Series B Securityholder or Managing Underwriter
reasonably requests in writing to the Company; keep each such registration or
qualification (or exemption therefrom) effective during the period such
Registration Statement is required to be kept effective and do any and all
other acts or things necessary or advisable to enable the disposition in such
jurisdictions of the Registrable Securities covered by the applicable
Registration Statement; provided, that the Company will not be required to (i)
qualify generally to do business in any jurisdiction where it is not then so
qualified or (ii) take any action that would subject it to general service of
process in suits or to taxation in any such jurisdiction where it is not then
so subject.

                 (i)      Cause the Registrable Securities covered by the
applicable Registration Statement to be registered with or approved by such
other governmental agencies or authorities within the United States, except as
may be required solely as a consequence of the nature of a selling holder of
Registrable Securities, in which case the Company will cooperate in all
reasonable respects with the filing of such Registration Statement and the
granting of such approvals, as may be necessary to enable the selling





                                       10
<PAGE>   60
holder or holders thereof or the Managing Underwriters, if any, to consummate
the disposition of such Registrable Securities.

                 (j)      During any Selling Period (other than during a
Deferral Period), immediately upon the existence of any fact or the occurrence
of any event as a result of which a Registration Statement shall contain any
untrue statement of a material fact or omit to state any material fact required
to be stated therein or necessary to make the statements therein not
misleading, or a Prospectus shall contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading, promptly prepare and file a
post-effective amendment to each Registration Statement or a supplement to the
related Prospectus or any document incorporated therein by reference or file
any other required document (such as a Current Report on Form 8-K) that would
be incorporated by reference into the Registration Statement so that the
Registration Statement shall not contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary to make the statements therein not misleading, and so that the
Prospectus will not contain any untrue statement of a material fact or omit to
state any material fact or omit to state any material fact required to be
stated therein or necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading, as thereafter
delivered to the purchasers of the Registrable Securities being sold
thereunder, and, in the case of a post-effective amendment to a Registration
Statement, use all reasonable efforts to cause it to become effective as
promptly as is practicable.

                 (k)      Enter into such agreements (including, in the event
of an Underwritten Offering, an underwriting agreement in form, scope and
substance as is customary in Underwritten Offerings) and take all such other
actions in connection therewith (including, in the event of an underwritten
offering, those reasonably requested by the Managing Underwriters, if any, or
the holders of a majority of the Registrable Securities being sold) in order to
expedite or facilitate the disposition of such Registrable Securities and in
such connection, whether or not an underwriting agreement is entered into, and
if the registration is an underwritten registration, (i) make such
representations and warranties, subject to the Company's ability to do so, to
the holders of such Registrable Securities and the underwriters with respect to
the business of the Company and its subsidiaries, the Registration Statement,
Prospectus and documents incorporated by reference or deemed incorporated by
reference, if any, in each case, in form, substance and scope as are
customarily made by issuers to underwriters in underwritten offerings and
confirm the same if and when  requested; (ii) obtain opinions of counsel to the
Company and updates thereof (which counsel and opinions (in form, scope and
substance) shall be reasonably satisfactory to the Managing Underwriters, if
any, Special Counsel and the holders of a majority of the Registrable
Securities being sold) addressed to each of the underwriters covering the
matters customarily covered in opinions requested in underwritten offerings and
such other matters as may be reasonably requested by such Special Counsel and
Managing Underwriters; (iii) obtain "comfort"





                                       11
<PAGE>   61
letters and updates thereof from the independent certified public accountants
of the Company (and, if necessary, any other certified public accountants of
any subsidiary of the Company or any business acquired or to be acquired by the
Company for which financial statements and financial data is, or is required to
be, included in the Registration Statement), addressed to each of the Managing
Underwriters, if any, such letters to be in customary form and covering matters
of the type customarily covered in "comfort" letters in connection with
Underwritten Offerings; and (iv) deliver such documents and certificates as may
be reasonably requested by the holders of a majority of the Registrable
Securities being sold, the Special Counsel and the Managing Underwriters, if
any, to evidence the continued validity of the representations and warranties
of the Company and its subsidiaries made pursuant to clause (i) above and to
evidence compliance with any customary conditions contained in the underwriting
agreement or other agreement entered into by the Company.

                 (l)      If requested in connection with a disposition of
Registrable Securities pursuant to a Registration Statement, make available for
inspection by a representative of the holders of Registrable Securities being
sold, any Managing Underwriter participating in any disposition of Registrable
Securities, if any, and any attorney or accountant retained by such selling
holders or underwriter, financial and other records, pertinent corporate
documents and properties of the Company and its subsidiaries, and cause the
executive officers, directors and employees of the Company and its subsidiaries
to supply all information reasonably requested by any such representative,
Managing Underwriter, attorney or accountant in connection with such
disposition; subject to reasonable written assurances by each such person that
such information will only be used in connection with matters relating to such
Registration Statement.

                 (m)      Comply with all applicable rules and regulations of
the SEC and make generally available to its securityholders earning statements
(which need not be audited) satisfying the provisions of Section 11(a) of the
Securities Act and Rule 158 thereunder (or any similar rule promulgated under
the Securities Act) no later than 45 days after the end of any 12-month period
(or 90 days after the end of any 12-month period if such period is a fiscal
year) (i) commencing at the end of any fiscal quarter in which Registrable
Securities are sold to underwriters in a firm commitment or best efforts
underwritten offering, and (ii) if not sold to underwriters in such an
offering, commencing on the first day of the first fiscal quarter of the
Company commencing after the effective date of a Registration Statement, which
statements shall cover said 12-month periods.

                 (n)      Cooperate with the selling Series B Securityholders
to facilitate the timely preparation and delivery of certificates representing
Registrable Securities to be sold and not bearing any restrictive legends; and
enable such Registrable Securities to be in such denominations and registered
in such names as the selling Series B Securityholders may request.





                                       12
<PAGE>   62
                 (o)      Use all reasonable efforts to provide a CUSIP number
for the Registrable Securities not later than the effective date of the
registration.

                 (p)      Cause all Registrable Securities covered by the
Registration Statement to be listed on each securities exchange or quotation
system on which the Company's Common Stock is then listed no later than the
date the Registration Statement is declared effective and, in connection
therewith, to the extent applicable, to make such filings under the Exchange
Act (e.g., the filing of a Registration Statement on Form 8-A) and to have such
filings declared effective thereunder.

                 (q)      Cooperate and assist in any filings required to be
made with the National Association of Securities Dealers, Inc.

                 (r)      Provide and cause to be maintained a transfer agent
and registrar for all Registrable Securities covered by such registration
statement from and after a date not later than the effective date of such
Registration Statement.

                 SECTION 2.3.  Holder's Obligations.

                 (a)      Each holder of Registrable Securities agrees, by
becoming a transferee of any Registrable Securities, that no holder of
Registrable Securities shall be entitled to sell any of such Registrable
Securities pursuant to a Registration Statement or to receive a Prospectus
relating thereto, unless such holder has furnished the Company with the notice
required pursuant to Section 2.1(d) hereof (including the information required
to accompany such  notice) and, promptly after the Company's request, such
other information regarding such holder and the distribution of such
Registrable Securities as the Company may from time to time reasonably request.
The Company may exclude from such registration the Registrable Securities of
any holder who does not furnish such information provided above for so long as
such information is not so furnished.  Each holder of Registrable Securities as
to which any Registration Statement is being effected agrees promptly to
furnish to the Company all information required to be disclosed in order to
make the information previously furnished to the Company by such holder not
misleading.  Any sale of any Registrable Securities by any holder shall
constitute a representation and warranty by such holder that the information
relating to such holder and its plan of distribution is as set forth in the
Prospectus delivered by such holder in connection with such disposition, that
such Prospectus does not as of the time of such sale contain any untrue
statement of a material fact relating to such holder or its plan of
distribution and that such Prospectus does not as of the time of such sale omit
to state any material fact relating to such holder or its plan of distribution
necessary to make the statements in such Prospectus, in light of the
circumstances under which they were made, not misleading.

                 (b)      The Company agrees (x) that if any holder of
Registrable Securities shall send a written notice to the Company of an
intended distribution of





                                       13
<PAGE>   63
Registrable Securities under the Shelf Registration pursuant to Section 2.1(d),
the Company shall not to sell, make any short sale of, loan, grant any option
for the purchase of, effect any public sale or distribution of or otherwise
dispose of its equity securities or securities convertible into or exchangeable
or exercisable for any of such securities during the period from first day of
the applicable Selling Period until the date that is 90 days after the date
when such holder shall have made such distribution of Registrable Securities
under the Shelf Registration, as the holder or managing underwriter (in the
case of an Underwritten Offering) shall advise the Company (provided that if
the holder or managing underwriter shall fail to advise the Company of any such
date prior to the end of the applicable Selling Period, such period shall end
on the last day of the applicable Selling Period), except (i) as part of such
registration, (ii) pursuant to registrations on Form S-4 or S-8 or any
successor or similar forms thereto or (iii) as otherwise permitted by the
managing underwriter of such offering (if any), and (y) to use all reasonable
efforts to cause each holder of its equity securities or any securities
convertible into or exchangeable or exercisable for any of such securities, in
each case purchased from the Company at any time after the date of this
Agreement (other than in a  public offering) to agree not to sell, make any
short sale of, loan, grant any option for the purchase of, effect any public
sale or distribution of or otherwise dispose of such securities during such
period except as part of such underwritten registration; provided that no
holder of Registrable Securities included in any underwritten registration
shall be required to make any representations or warranties to the Company or
the underwriters other than representations and warranties regarding such
holder and such holder's intended method of distribution.

                 SECTION 2.4.  Registration Expenses.  All fees and expenses
incident to the Company's performance of or compliance with this Agreement
shall be borne by the Company whether or not any of the Registration Statements
become effective.  Such fees and expenses shall include, without limitation,
(i) all registration and filing fees (including, without limitation, fees and
expenses (x) with respect to filings required to be made with the National
Association of Securities Dealers, Inc. and (y) of compliance with federal
securities or Blue Sky laws (including, without limitation, fees and
disbursements of Special Counsel in connection with Blue Sky qualifications of
the Registrable Securities laws of such jurisdictions as the Managing
Underwriters, if any, or holders of a majority of the Registrable Securities
being sold may designate), (ii) printing expenses (including, without
limitation, expenses of printing certificates for Registrable Securities in a
form eligible for deposit with The Depositary Trust Company and of printing
prospectuses if the printing of prospectuses is requested by the Special
Counsel or the holders of a majority of the Registrable Securities included in
any Registration Statement), (iii) messenger, telephone and delivery expenses,
(iv) reasonable fees and disbursements of counsel for the Company and the
Special Counsel in connection with the Registration, (v) fees and disbursements
of all independent certified public accountants referred to in Section
2.2(k)(iii) hereof (including the expenses of any special audit and "comfort"
letters required by or incident to such performance) and (vi) Securities Act
liability insurance obtained by the Company in its sole discretion.  In





                                       14
<PAGE>   64
addition, the Company shall pay its internal expenses (including, without
limitation, all salaries and expenses of its officers and employees performing
legal or accounting duties), the expense of any annual audit, the fees and
expenses incurred in connection with the listing of the securities to be
registered on any securities exchange on which similar securities issued by the
Company are then listed and the fees and expenses of any person, including
special experts, retained by the Company.  Notwithstanding the provisions of
this Section 2.4, each seller of Registrable Securities shall pay all
registration expenses to the extent the Company is prohibited by applicable
Blue Sky laws from  paying for or on behalf of such seller of Registrable
Securities.

                 SECTION 2.5.  Indemnification.

                 (a)      The Company agrees to indemnify and hold harmless
each holder of Registrable Securities whose Registrable Securities are covered
by any registration statement, its directors and officers and each other
Person, if any, who controls such holder within the meaning of the Securities
Act, against any losses, claims, damages or liabilities, joint or several, to
which any such indemnified party may become subject under the Securities Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions
or proceedings, whether commenced or threatened, in respect thereof) arise out
of or are based upon any untrue statement or alleged untrue statement of any
material fact contained in any registration statement under which such
securities were registered under the Securities Act, any preliminary
prospectus, final prospectus or summary prospectus contained therein, or any
amendment or supplement thereto, or any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, and the Company will reimburse each such
indemnified party for any legal or any other expenses reasonably incurred by
them in connection with investigating or defending any such loss, claim,
liability, action or proceeding; provided that the Company shall not be liable
in any such case to the extent that any such loss, claim, damage, liability (or
action or proceeding in respect thereof) or expense arises out of or is based
upon an untrue statement or alleged untrue statement or omission or alleged
omission made in such registration statement, any such preliminary prospectus,
final prospectus, summary prospectus, amendment or supplement in reliance upon
and in conformity with written information furnished to the Company by or on
behalf of such holder specifically for use in the preparation thereof.  In
addition, the Company shall indemnify any underwriter of such offering and each
other Person, if any, who controls any such underwriter within the meaning of
the Securities Act in substantially the same manner and to substantially the
same extent as the indemnity herein provided to each Indemnified Party.  Such
indemnity shall remain in full force and effect regardless of any investigation
made by or on behalf of such holder or any such director, officer, underwriter
or controlling person and shall survive the transfer of such securities by such
holder.

                 (b)      Each prospective seller of Registrable Securities
hereunder shall indemnify and hold harmless (in the same manner and to the same
extent as set forth in





                                       15
<PAGE>   65
subdivision (a) of this Section 2.5) the Company, each  director of the
Company, each officer of the Company and each other person, if any, who
controls the Company within the meaning of the Securities Act, with respect to
any statement or alleged statement in or omission or alleged omission from such
registration statement, any preliminary prospectus, final prospectus or summary
prospectus contained therein, or any amendment or supplement thereof, if such
statement or alleged statement or omission or alleged omission was made in
reliance upon and in conformity with written information furnished to the
Company by or on behalf of such seller specifically for use in the preparation
of such registration statement, preliminary prospectus, final prospectus,
summary prospectus, amendment or supplement.  Any such indemnity shall remain
in full force and effect, regardless of any investigation made by or on behalf
of the Company or any such director, officer or controlling person and shall
survive the transfer of such securities by such seller.  The amount payable by
any prospective seller of Registrable Securities with respect to the
indemnification set forth in this subsection (b) in connection with any
offering of Registrable Securities will not exceed the amount of the gain
realized by such prospective seller pursuant to such offering.

                 (c)      Promptly after receipt by an indemnified party of
notice of the commencement of any action or proceeding involving a claim
referred to in the preceding subdivisions of this Section 2.5, such indemnified
party will, if a claim in respect thereof is to be made against an indemnifying
party, give written notice to the latter of the commencement of such action;
provided that the failure of any indemnified party to give notice as provided
herein shall not relieve the indemnifying party of its obligations under the
preceding subdivisions of this Section 2.5, except to the extent that the
indemnifying party is actually prejudiced by such failure to give notice.  In
case any such action is brought against an indemnified party, unless in such
indemnified party's reasonable judgment a conflict of interest between such
indemnified and indemnifying parties may exist in respect of such claim, the
indemnifying party shall be entitled to participate in and to assume the
defense thereof, jointly with any other indemnifying party similarly notified,
to the extent that the indemnifying party may wish, with counsel reasonably
satisfactory to such indemnified party, and after notice from the indemnifying
party to such indemnified party of its election so to assume the defense
thereof, the indemnifying party shall not be liable to such indemnified party
for any legal or other expenses subsequently incurred by the latter in
connection with the defense thereof.  No indemnifying party shall, without the
consent of the indemnified party, consent to entry of any judgment or enter
into any settlement of any such action which does not include as an
unconditional term  thereof the giving by the claimant or plaintiff to such
indemnified party of a release from all liability in respect to such claim or
litigation.  No indemnified party shall consent to entry of any judgment or
enter into any settlement of any such action the defense of which has been
assumed by an indemnifying party without the consent of such indemnifying
party.

                 (d)      If the indemnification provided for in the preceding
subdivisions of this Section 2.5 is unavailable to an indemnified party in
respect of any expense, loss,





                                       16
<PAGE>   66
claim, damage or liability referred to therein, then each indemnifying party,
in lieu of indemnifying such indemnified party, shall contribute to the amount
paid or payable by such indemnified party as a result of such expense, loss,
claim, damage or liability (i) in such proportion as is appropriate to reflect
the relative benefits received by the Company on the one hand and the holder or
underwriter, as the case may be, on the other from the distribution of the
Registrable Securities or (ii) if the allocation provided by clause (i) above
is not permitted by applicable law, in such proportion as is appropriate to
reflect not only the relative benefits referred to in clause (i) above but also
the relative fault of the Company on the one hand and of the holder or
underwriter, as the case may be, on the other in connection with the statements
or omissions which resulted in such expense, loss, damage or liability, as well
as any other relevant equitable considerations.  The relative benefits received
by the Company on the one hand and the holder or underwriter, as the case may
be, on the other in connection with the distribution of the Registrable
Securities shall be deemed to be in the same proportion as (i) the product of
the Liquidation Preference (as defined in Exhibit 1.7 of the Stock Agreement)
multiplied by the number of shares of Series B Preferred Stock into which the
Conversion Shares subject to the relevant distribution were converted, bears to
(ii) the gain realized by the selling holder or the underwriting discounts and
commissions received by the underwriter, as the case may be.  The relative
fault of the Company on the one hand and of the holder or underwriter, as the
case may be, on the other shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or
omission to state a material fact relates to information supplied by the
Company, by the holder or by the underwriter and parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission; provided that the foregoing contribution agreement shall
not inure to the benefit of any indemnified party if indemnification would be
unavailable to such indemnified party by reason of the proviso contained in the
first sentence of subdivision (a) of this Section 2.5, and in no  event shall
the obligation of any indemnifying party to contribute under this subdivision
(d) exceed the amount that such indemnifying party would have been obligated to
pay by way of indemnification if the indemnification provided for under
subdivisions (a) or (b) of this Section 2.5 had been available under the
circumstances.

                 The Company and the holders of Registrable Securities agree
that it would not be just and equitable if contribution pursuant to this
subdivision (d) were determined by pro rata allocation (even if the holders and
any underwriters were treated as one entity for such purpose) or by any other
method of allocation that does not take account of the equitable considerations
referred to in the immediately preceding paragraph and subdivision (c) of this
Section 2.5.  The amount paid or payable by an indemnified party as a result of
the losses, claims, damages and liabilities referred to in the immediately
preceding paragraph shall be deemed to include, subject to the limitations set
forth above, any legal or other expenses reasonably incurred by such
indemnified party in connection with investigating or defending any such action
or claim.





                                       17
<PAGE>   67
                 Notwithstanding the provisions of this subdivision (d), no
holder of Registrable Securities or underwriter shall be required to contribute
any amount in excess of the amount by which (i) in the case of any such holder,
the gain realized by such holder from the sale of Registrable Securities or
(ii) in the case of an underwriter, the total price at which the Registrable
Securities purchased by it and distributed to the public were offered to the
public exceeds, in any such case, the amount of any damages that such holder or
underwriter has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission.  No Person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation.

                 SECTION 2.6.  Rule 144; Rule 144A; Form S-3.

                 (a)      The Company will file all reports required to be
filed by it under the Securities Act and the Exchange Act and the rules and
regulations adopted by the Commission thereunder and will take such further
action as any holder of Registrable Securities may reasonably request, all to
the extent required from time to time to enable such holder to sell Registrable
Securities without registration under the Securities Act within the limitation
of the exemptions provided by (a) Rule 144 under the Securities Act, as such
Rule may be amended from time to time, or (b) any similar rule or regulation
hereafter adopted by the Commission.  Upon the request of any holder of
Registrable Securities, the Company will deliver to such holder a written
statement as to whether it has complied with such requirements.  The Company
further covenants that it will cooperate with any holder of Registrable
Securities and take such further reasonable action as any holder of Registrable
Securities may reasonably request (including, without limitation, making such
reasonable representations as any such holder may reasonably request), all to
the extent required from time to time to enable such holder to sell Registrable
Securities without registration under the Securities Act within the limitation
of the exemptions provided by Rule 144 and Rule 144A under the Securities Act.

                 (b)      For so long as any shares of Registrable Securities
are restricted securities within the meaning of Rule 144(a)(3) under the
Securities Act, the Company covenants and agrees that it shall, during any
period in which it is not subject to Section 13 or 15(d) of the Exchange Act,
make available to any holder of Registrable Securities in connection with the
sale of such holder Registrable Securities and any prospective purchaser of
Registrable Securities from such, in each case upon request, the information
specified in, and meeting the requirements of, Rule 144A(d)(4) under the
Securities Act.

                 (c)      The Company shall file the reports required to be
filed by it under the Exchange Act and shall comply with all other eligibility
requirements for use of Form S-3 set forth in the instructions to Form S-3
(other than Registration Requirement A.5).





                                       18
<PAGE>   68
                                  ARTICLE III

                                 MISCELLANEOUS

                 SECTION 3.1.  Notices.  All notices and other communications
provided for hereunder shall be dated and in writing and shall be deemed to
have been given (i) if given by telecopy, when such telecopy is transmitted to
the telecopy number specified in this Section 3.1 and telephonic confirmation
of receipt thereof is obtained or (ii) if given by mail, prepaid overnight
courier or any other means, when received at the address specified in this
Section 3.1 or when delivery at such address is refused.  Such notices shall be
addressed to the appropriate party to the attention of the person who executed
this Agreement at the address or telecopy number set forth under such party's
signature below (or to the attention of such other person or to such other
address or telecopy number as such party shall have furnished to each other
party in accordance with this Section 3.1).

                 SECTION 3.2.  Binding Nature of Agreement.  This Agreement
shall be binding upon and inure to the benefit of and be enforceable by the
parties hereto or their successors in interest, except as expressly otherwise
provided herein.

                 SECTION 3.3.  Descriptive Headings.  The descriptive headings
of the several sections and paragraphs of this Agreement are inserted for
reference only and shall not limit or otherwise affect the meaning hereof.

                 SECTION 3.4.  Specific Performance.  Without limiting the
rights of each party hereto to pursue all other legal and equitable rights
available to such party for the other parties' failure to perform their
obligations under this Agreement, the parties hereto acknowledge and agree that
the remedy at law for any failure to perform their obligations hereunder would
be inadequate and that each of them, respectively, shall be entitled to
specific performance, injunctive relief or other equitable remedies in the
event of any such failure.

                 SECTION 3.5.  GOVERNING LAW.  THIS AGREEMENT SHALL BE
CONSTRUED AND ENFORCED IN ACCORDANCE WITH, AND THE RIGHTS OF THE PARTIES SHALL
BE GOVERNED BY, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO THE
PRINCIPLES OF CONFLICTS OF LAW.  EACH OF THE PARTIES HERETO HEREBY SUBMITS TO
THE NONEXCLUSIVE JURISDICTION OF THE UNITED STATES DISTRICT COURT FOR THE
SOUTHERN DISTRICT OF NEW YORK AND OF ANY NEW YORK STATE COURT SITTING IN NEW
YORK CITY FOR PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR RELATING TO
THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.  EACH OF THE PARTIES
HERETO IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY





                                       19
<PAGE>   69
LAW, ANY OBJECTION WHICH SUCH PARTY MAY NOW OR HEREAFTER HAVE TO THE LAYING OF
THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM THAT ANY
SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT
FORUM.  EACH OF THE PARTIES HERETO IRREVOCABLY CONSENTS TO SERVICE OF PROCESS
IN THE MANNER PROVIDED FOR NOTICES IN SECTION 3.1.  NOTHING IN THIS AGREEMENT
WILL AFFECT THE RIGHT OF ANY PARTY TO THIS AGREEMENT TO SERVE PROCESS IN ANY
OTHER MANNER PERMITTED BY LAW.

                 SECTION 3.6.  WAIVER OF JURY TRIAL.  EACH OF PARTIES HERETO
HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL
PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS
CONTEMPLATED HEREBY.

                 SECTION 3.7.  Counterparts.  This Agreement may be executed
simultaneously in any number of counterparts, each of which shall be deemed an
original, but all such counterparts shall together constitute one and the same
instrument.

                 SECTION 3.8.  Severability.  In the event that any one or more
of the provisions contained herein, or the application thereof in any
circumstances, is held invalid, illegal or unenforceable in any respect for any
reason, the validity, legality and enforceability of any such provision in
every other respect and of the remaining provisions contained herein shall not
be in any way impaired thereby, it being intended that all of the rights and
privileges of the parties hereto shall be enforceable to the fullest extent
permitted by law.

                 SECTION 3.9.  Entire Agreement.  This Agreement is intended by
the parties hereto as a final and complete expression of their agreement and
understanding in respect to the subject matter contained herein.  This
Agreement supersedes all prior agreement and understandings, written or oral,
between the parties with respect to such subject matter.

                 SECTION 3.10.  Amendment and Waiver.  Any provision of this
Agreement may be amended if, but only if, such amendment is in writing and is
signed by the Company and Series B Securityholders owning, or having Series B
Preferred Stock convertible into, at least a majority of shares of Common Stock
either issued or issuable upon the conversion of all outstanding shares of
Series B Preferred Stock, provided that no such amendment may adversely affect
the rights of any Series B Securityholder unless signed by such Series B
Securityholder.  Any provision may be waived if, but only if, such waiver is in
writing and is signed by the party or parties waiving such provision and for
whose benefit such provision is intended.





                                       20
<PAGE>   70
                 SECTION 3.11.  No Third Party Beneficiaries.  Nothing in this
Agreement shall convey any rights upon any person or entity which is not a
party or an assignee of a party to this Agreement.

                 SECTION 3.12.  Effectiveness.  This Agreement shall become
effective immediately at such time when (i) the Agent shall have received duly
executed counterparts hereof signed by the Company and each of the Banks (or,
in the case of any party as to which an executed counterpart thereof shall not
have been received, receipt by the Agent in form satisfactory to it of
telegraphic, telex or other written confirmation from such party of execution
of a counterpart hereof by such party) and (ii) the Effective Date under the
Stock Agreement shall occur.

                 SECTION 3.13.  No Inconsistent Agreements.  The Company has
not entered into and will not enter into any registration rights agreement or
similar arrangements the performance by the Company of the terms of which would
in any manner conflict with, restrict or be inconsistent with the performance
by the Company of its obligations under this Agreement.

                 IN WITNESS WHEREOF, the parties have caused this Agreement to
be executed and delivered as of the date first above written.


                                    PERINI CORPORATION                        
                                                                              
                                                                              
                                    By:                                       
                                         -------------------------------      
                                         Name:                                
                                         Title:                               
                                                                              
                                                                              
                                    By:                                       
                                         -------------------------------      
                                         Name:                                
                                         Title:                               
                                                                              
                                    Address for Notices:                      
                                    --------------------                      
                                    73 Mount Wayte Avenue                     
                                    Framingham, MA  01701                     
                                    Facsimile number: (508) 628-2960          
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                     21                                                       
<PAGE>   71
                                    PB CAPITAL PARTNERS, L.P.                 
                                                                              
                                                                              
                                    By:     Richard C. Blum & Associates, L.P.,
                                            its General Partner
                                                                              
                                            By:   Richard C. Blum & Associates,
                                                  Inc., its General Partner
                                                                              
                                                  By:  
                                                       ------------------------
                                                       Name:            
                                                       Title:           
                                                                              
                                    Address for Notices:                      
                                    --------------------                      
                                    909 Montgomery Street                     
                                    Suite 400                                 
                                    San Francisco, California 94133           
                                    Attn:   Alexander Dean                    
                                    Facsimile Number:  415-434-3130           
                                                                              
                                                                              
                                    UNION LABOR LIFE INSURANCE COMPANY 
                                    SEPARATE ACCOUNT P          
                                                                              
                                    By:  
                                         -------------------------------------
                                         Name:                             
                                         Title:                            
                                                                              
                                    Address for Notices:                      
                                    --------------------                      
                                    111 Massachusetts Avenue, N.W.            
                                    Washington, D.C.  20001                   
                                    Attn:   Michael P. Steed                  
                                    Facsimile Number:  202-682-7970           





                                       22
<PAGE>   72
                                VOTING AGREEMENT


         THIS VOTING AGREEMENT, dated as of November __, 1996 (this
"Agreement"), is by and among PB CAPITAL PARTNERS, L.P.,  a Delaware limited
partnership ("PB"), PERINI CORPORATION, a Massachusetts corporation (the
"Corporation"), DAVID B. PERINI ("D. Perini"), [PERINI MEMORIAL FOUNDATION (the
"Foundation"),] BART PERINI ("B. Perini"), [DAVID B. PERINI TESTAMENTARY TRUST
(the "Trust"),] Ronald Tutor ("Tutor"), and TUTOR-SALIBA CORPORATION
("Tutor-Saliba"). PB, D. Perini, the Foundation, B. Perini, the Trust, Tutor,
and Tutor-Saliba are referred to collectively herein as the "Stockholders" and
each individually as a "Stockholder."

         WHEREAS, each Stockholder is the record and beneficial owner of (1)
that number of shares of Common Stock, par value $1.00 per share ("Common
Stock"), (2) that number of Series B Cumulative Convertible Preferred Stock
("Series B Cumulative Convertible Preferred Stock"), and (3) that number of
Series A Junior Participating Cumulative Preferred Stock ("Series A Junior
Participating Stock") of the Corporation, set forth opposite such Stockholder's
name on Exhibit A attached hereto (the Common Stock, Series B Cumulative
Convertible Preferred Stock, and Series A Junior Participating Stock, together
with any other series or classes of voting stock to be issued by the
Corporation, collectively the "Perini Voting Stock"); and

         WHEREAS, pursuant to a "Stock Purchase and Sale Agreement, dated July
24, 1996, by and among PB, Richard C. Blum & Associates, L.P. ("RCBA"), and the
Corporation (the "Stock Purchase Agreement"), the Corporation has agreed to
sell to PB, and PB has agreed to purchase from the Corporation, 150,150 shares
of Series B Cumulative Convertible Preferred Stock in consideration for the
payment to the Corporation of $30,030,000.00; and

         WHEREAS, PB has made the execution of this Voting Agreement a
condition to the purchase of the shares of Series B Cumulative Convertible
Preferred Stock and regards this Voting Agreement as integral to the economic
value of such securities; and

         WHEREAS, PB (together with certain of its assigns) are simultaneously
purchasing such securities; and

         WHEREAS, in order to induce PB to enter into the Stock  Purchase
Agreement, the Stockholders desire to enter into this Agreement, which shall
inure to the benefit of PB;
<PAGE>   73
                                     -2-

         NOW, THEREFORE, for and in consideration of $10.00 and the premises
and mutual covenants and agreements hereinafter contained, the Stockholders
hereby agree as follows:

         1.      Voting of Shares for Election of Directors.  Each Stockholder
hereby agrees to vote or cause to be voted all Perini Voting Stock owned or
hereafter acquired by him or it, or over which he or it has voting control in
such Stockholder's own right, in favor of the election to the Board of
Directors of the representative designated by PB at the next annual or special
meeting of stockholders at which directors will be elected("Meeting"), which
Director shall serve until his successor is elected and qualified or until his
earlier resignation or removal. At any time during the term of this Agreement,
the Corporation shall cause the nomination for election to the Board of
Directors of the representatives of PB designated in accordance with the
Certificate of Vote, and shall call such Stockholders' meetings as may be
necessary or requested by PB to effect any such election.  The representatives
designated by PB shall be reasonably satisfactory to the Corporation.

         2.      Term.  This Agreement shall remain in force and effect until
immediately after the holding of the next Meeting at which the Director
designated pursuant to Section 1 is elected.

         3.      Changes in Common Stock.  In the event that subsequent to the
date of this Agreement any shares or other securities (other than any shares or
securities of another corporation issued to the stockholders of the Corporation
pursuant to a plan of merger) are issued on, or in exchange for, any of the
shares of the Perini Voting Stock held by the Stockholders by reason of any
stock dividend, stock split, consolidation of shares, reclassification, or
consolidation involving the Corporation, such shares or securities shall be
deemed to be Perini Stock for purposes of this Agreement.

         4.      Representations of Stockholders.  Each Stockholder hereby
represents and warrants that (i) he owns and has the right to vote the number
of shares of the Perini Voting Stock set forth opposite his name on Exhibit A
attached hereto, (ii) each of the Stockholders has full power to enter into
this Agreement and has not, prior to the date of this Agreement, executed or
delivered any proxy or entered into any other voting agreement or similar
arrangement that would conflict with the purposes or provisions of this
Agreement, and (iii) he will not take any action inconsistent with the purposes
and provisions of this Agreement.

         5.      Enforceability; Validity. Irreparable damage would result in
the event that the provisions of this Agreement are not specifically enforced.
Therefore, the rights to, or obligations of, the parties hereto shall be
enforceable in a court of equity by a decree of specific performance and
appropriate injunctive relief may be applied for and granted in connection
therewith.  Such remedies, and all other remedies provided for in this
Agreement, shall, however, be cumulative and not exclusive and shall be in
addition to any other remedies which any party may have under this Agreement or
otherwise.
<PAGE>   74
                                     -3-


         6.      Benefit.  Subject to the provisions of Section 9, this
Agreement shall be binding upon, and inure to the benefit of, the respective
parties hereto and their successors, assigns, and transferees.

         7.      Governing Law.  This Agreement shall be governed by and
construed and enforced in accordance with the laws of the Commonwealth of
Massachusetts applicable to agreements made and to be performed entirely within
the Commonwealth of Massachusetts

         8.      Counterparts.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

         9.      Legending. Upon the execution of this Agreement, each
certificate or other instrument for Perini Voting Securities now registered or
to be issued in the name of the Stockholders shall be endorsed by the Secretary
of the Corporation as follows:

         "This certificate is subject to that certain Voting Agreement dated as
         of November __, 1996 by and among the Corporation and certain of the
         holders of its voting stock, a copy of which is on file in the office
         of the Corporation and is available upon request of any Stockholder
         without charge."

Provided, however, that each of the Trust and the Foundation shall be entitled
to withhold from the legending required by this Section up to ten percent (10%)
of its Perini Voting Stock and that such stock -- if disposed of to an
unaffiliated third party prior to the Meeting -- shall not be subject to this
Voting Agreement.

         10.     Terms.  All terms not otherwise defined in this Agreement
shall have the meaning set forth in the Stock Purchase Agreement.

         IN WITNESS WHEREOF, the Stockholders have executed this Agreement as
of the date first above written.


PERINI CORPORATION                        PB CAPITAL PARTNERS, L.P.
                                             

- -----------------------------------       -------------------------
By:
   -----------------------------
Its:
    ----------------------------
<PAGE>   75
                                      -4-

DAVID B. PERINI                          [PERINI MEMORIAL FOUNDATION
                                                   

- ----------------------------------       -----------------------------------
                                         By:
                                            ------------------------------
                                         Its:                              ]
                                             ------------------------------


BART PERINI                              [DAVID B. PERINI TESTAMENTARY 
                                         TRUST

- ----------------------------------       -----------------------------------
                                         By:
                                            ------------------------------
                                         Its:                              ]
                                             ------------------------------


RONALD TUTOR                             TUTOR-SALIBA CORP.


- ----------------------------------       -----------------------------------
                                         By:
                                            ------------------------------
                                         Its:
                                             ------------------------------
<PAGE>   76
<TABLE>
<CAPTION>
                                                              EXHIBIT A
                                                              ---------

================================================================================================================================
                                                                    SERIES B CUMULATIVE       SERIES A JUNIOR PARTICIPATING
                                        COMMON STOCK            CONVERTIBLE PREFERRED STOCK         PREFERRED STOCK
================================================================================================================================
 <S>                                    <C>                     <C>                                 <C>
 PB Capital
 Partners, L.P.
- --------------------------------------------------------------------------------------------------------------------------------
 David Perini
- --------------------------------------------------------------------------------------------------------------------------------
 David Perini Foundation
- --------------------------------------------------------------------------------------------------------------------------------
 Bart Perini
- --------------------------------------------------------------------------------------------------------------------------------
 Perini Testamentary Trust
- --------------------------------------------------------------------------------------------------------------------------------
 Tutor-Saliba Corporation
- --------------------------------------------------------------------------------------------------------------------------------
 Ronald Tutor
================================================================================================================================
</TABLE>
<PAGE>   77


                               November 8, 1996




Perini Corporation
73 Mt.  Wayte Avenue
Framingham, MA 0 1 701

Richard C. Blum & Associates, L.P.
909 Montgomery Street, Suite 400
San Francisco, CA 94133

PB Capital Partners, L.P.
909 Montgomery Street, Suite 400
San Francisco, CA 94133

                 Re: Closing Conditions to Stock Purchase Agreement

Dear Gentlemen:

                 This Letter Agreement ("Agreement") is entered into by and
among Richard C. Blum & Associates, L.P., a California limited partnership
("RCBA"), PB Capital Partners, L.P., a Delaware limited partnership
("Purchaser"), and Perini Corporation, a Massachusetts corporation ("Seller")
effective as of November 8, 1996 (RCBA, Purchaser and Seller shall collectively
be referred to as the "Parties").  Unless otherwise provided herein, all
capitalized terms shall have the meaning given to them in the Stock Purchase
and Sale Agreement dated July 24, 1996, as amended to and including the date of
this Agreement ("Stock Agreement"), by and among the Parties.

                 This Agreement is intended to provide the Parties with certain
interim representations and warranties relating to the current status of the
conditions which must be satisfied prior to the Closing of the Stock Agreement.
The Parties hereby agree that these interim representations and warranties do
not relieve any Party of the obligation to make such further representations
and warranties as are required under the terms of the Stock Agreement.

                 The Seller represents and warrants that, as of the date of
this Agreement, all of the representations and warranties contained in Sections
5.1 through 5.25 of the Stock Agreement, inclusive, are true and accurate in
all material respects, that there is no material violation of any
<PAGE>   78
covenant applicable to Seller pursuant to the Stock Agreement, and that there
has been no material failure to satisfy any condition required to be satisfied
prior to the date hereof.

                 Each of RCBA and Purchaser hereby represents and warrants that
it does not, as of the date hereof, have any actual knowledge of facts (i) that
constitute a violation by Seller of the covenants contained in Sections 7.7,
7.8, 7.9, 7.10, 7.14, 7.15 and 7.19 of the Stock Agreement, or (ii) that
constitute a breach by Seller of any representation and warranty contained in
Article 5 of the Stock Agreement (other than in Section 5.22). RCBA and
Purchaser further represent that RCBA has no right to terminate the Stock
Agreement pursuant to Section 7.4 thereof.

                 Furthermore, each of RCBA and Purchaser represents and
warrants that, as to Section 5.22 of the Stock Agreement, it does not deem any
changes affecting Seller (i) of which RCBA has been advised by Seller or (ii)
of which RCBA otherwise has actual knowledge, in either case as of the date of
this Agreement (collectively, "Known Changes"), to constitute a Material
Adverse Change within the meaning of the Stock Agreement.  Notwithstanding the
preceding sentence, (x) the Known Changes affecting Seller may, together with
any changes affecting Seller other than Known Changes, constitute a Material
Adverse Change within the meaning of the Stock Agreement, and (y) the further
deterioration in Seller's business after the date hereof due to Known Changes
affecting Seller may also constitute a Material Adverse Change.

                 This Agreement may be executed through the use of separate
signature pages or in any number of counterparts, and each of such counterparts
shall, for all purposes, constitute one agreement binding on all the Parties
hereto, notwithstanding that all the parties are not signatories to the same
counterpart.

                 Each of the Seller, RCBA and the Purchaser acknowledges that
the banks listed on Exhibit 3.9 to the Stock Purchase Agreement have relied on
this letter agreement in entering into Amendment No. 7 to the Bridge Credit
Agreement with the Seller and the Participation Agreement with the Purchaser.





                                       2
<PAGE>   79
                 IN WITNESS WHEREOF, the Parties hereto have entered into this
Agreement effective as of the DATE FIRST written above.

                                      Perini CORPORATION


                                      BY:
                                         ---------------------------------


                                      RICHARD C. BLUM & ASSOCIATES, L.P.



                                      BY:
                                         ---------------------------------


                                      PB CAPITAL PARTNERS, L.P.


                                      BY:
                                         ---------------------------------



                                       3
<PAGE>   80
                              MANAGEMENT AGREEMENT


         THIS MANAGEMENT AGREEMENT (the "Agreement") is made and entered into
as of November __, 1996 by and among Perini Corporation, a Massachusetts
corporation ("Perini"), Tutor-Saliba Corporation, a California corporation
("Tutor-Saliba") and Ronald N. Tutor ("Tutor"), an individual and President of
Tutor-Saliba.

         WHEREAS, Perini has had some difficulty meeting its cash requirements
for the past year due to, inter alia, its high level of capital-intensive civil
construction work and the cash support required by its real estate assets;

         WHEREAS, Perini's financial condition has impeded its ability to
perform on existing projects and to bid on new projects;

         WHEREAS, during the course of 1996, Perini engaged in an extensive
search for new capital to support its cash needs and to provide it the
opportunity to improve operations and improve its competitiveness in the
general contracting and construction industry;

         WHEREAS, as a result of its search for capital, Perini entered into a
Stock Purchase and Sale Agreement dated July 24, 1996 by and among Perini, PB
Capital Partners, L.P., a Delaware limited partnership ("PB Capital Partners"),
and Richard C. Blum & Associates, L.P., a California limited partnership
("RCBA") (as amended through the date hereof, the "Stock Purchase Agreement"),
pursuant to which it is contemplated that Perini will issue convertible
preferred stock to PB Capital Partners in exchange for an investment by PB
Capital Partners of $30,030,000 (the "Investment");

         WHEREAS, Tutor-Saliba is a limited partner of PB Capital Partners;

         WHEREAS, Tutor-Saliba directly owns approximately 7.24% of the
outstanding common stock, par value $1.00 per share (the "Common Stock") of
Perini;

         WHEREAS, Tutor-Saliba has from time to time engaged in construction
joint ventures with Perini under the name Tutor-Saliba/Perini;

         WHEREAS, considering the existing and potential relationships, direct
and indirect, between Tutor-Saliba and Perini, as well as Tutor's expertise and
achievements in the construction industry, the parties hereto desire, in
connection with and contingent upon the Investment, that Tutor-Saliba provide
the services of Tutor to Perini, for the purpose of providing direction to
Perini with respect to its ongoing and future construction operations and
improving Perini's operating efficiency and thus its ability to successfully
compete for new projects and in new areas;

         NOW THEREFORE, in consideration of the premises and of the mutual
covenants herein contained, the parties hereby agree as follows:
<PAGE>   81
         1.      Effectiveness.  Unless sooner terminated pursuant to Section 6
hereof, this Agreement shall become effective on the date of the closing of the
Investment (the "Effective Date").

         2.      Management.

                 (a)      Tutor-Saliba and Tutor each hereby agree to provide
to Perini the management services of Tutor, to assist Perini from time to time
(but for no more than ten (10) days in any calendar month, unless the parties
otherwise agree in writing) as described in Section 2(b) hereof or as the
parties hereto may otherwise agree.

                 (b)      Tutor shall initially serve as acting Chief Operating
Officer of Perini, and will provide direction with respect to Perini's ongoing
and future construction operations, with the goal of achieving greater
operating efficiencies, reducing Perini's need for working capital, reducing
Perini's exposure to risk by negotiating and bidding on construction projects
that will yield higher profit margins than current projects, negotiating with
Perini's lenders, bonding companies and insurers, and generally improving
Perini's cash flow situation and competitive position in the general
contracting and construction industry.

                 (c)      Perini hereby agrees to take all action which may be
required to:  (i) appoint Tutor acting Chief Operating Officer of Perini; (ii)
provide Tutor with the use of an office at Perini's principal executive offices
and administrative and other support services as may be reasonably necessary in
connection with the performance of Tutor's services under Section 2(b) hereof;
(iii) make available to Tutor the services of such of its employees and
consultants as may be reasonably necessary to the performance of the services
described in Section 2(b) above; and (iv) issue the Option (as defined below)
and otherwise pay the management fee pursuant to Section 3 hereof.

         3.      Compensation.  In return for the provision of Tutor's
services, Perini shall pay a management fee as follows:

                 (a)      On the Effective Date, Perini shall issue to Tutor,
pursuant to Perini's 1982 Stock Option and Long-Term Performance Incentive
Compensation Plan, as amended (the "Plan") (or, in the event options are
unavailable for issuance under such plan, with similar terms and conditions as
under the Plan), an option (the "Option") exercisable for 150,000 shares of
Common Stock, with an exercise price per share equal to the closing price of
the Common Stock on the American Stock Exchange on the day prior to the
Effective Date.  The Option will first become exercisable forty months after
the Effective Date.

                 (b)      Beginning on the Effective Date, Perini shall pay a
fee to Tutor-Saliba at the rate of $150,000 per year, such amount to be paid in
twelve equal monthly installments in arrears on the 15th of each month, or as
the parties hereto shall otherwise agree in writing.



                                      2
<PAGE>   82
         4.      Limitation of Liability.

                 (a)      Neither Tutor nor Tutor-Saliba makes any express or
implied representation, warranty or guaranty to Perini relating to the services
to be performed by Tutor pursuant to this Agreement or the quality or results
of such services.

                 (b)      Neither Tutor nor Tutor-Saliba shall be liable to
Perini or to any of its subsidiaries or affiliates or to any third party for
failure to perform the services to be performed by either of them pursuant to
this Agreement for any expense, claim, loss or damage, including, without
limitation, indirect, special, consequential or exemplary damages, suffered
other than by reason of such party's intentional failure to perform the
services to be performed by such party pursuant to this Agreement, or by reason
of action taken or omitted to be taken by such party which was in bad faith and
in a manner not reasonably believed by such party to be in the best interests
of Perini.

         5.      Indemnification.  Perini shall indemnify and hold Tutor and
Tutor-Saliba harmless against all loss, cost, liability and expense arising out
of the performance of this Agreement by Tutor and Tutor-Saliba, upon the same
terms and conditions as those provided to officers and directors of Perini by
Section 9 of the By-laws of Perini.  A true, complete and correct copy of
Section 9 of the By-laws of Perini is attached hereto as Exhibit A.

         6.      Termination.  Unless earlier terminated by the parties, this
Agreement shall terminate upon the earliest to occur of (i) December 31, 1998,
(ii) Tutor's inability to perform the services contemplated hereby, whether
because of death, disability or otherwise, (iii) written notice from Perini to
Tutor after, in the determination of a majority of the Executive Committee of
the Board of Directors of Perini, Tutor has failed to perform his obligations
under this Agreement, and (iv) the reasonable determination by the Board of
Directors or Executive Committee of Perini, and written notice thereof to
Tutor, that it would be inadvisable for Tutor to continue performing the
services contemplated by this Agreement.

         7.      Governing Law.  This Agreement shall be construed under and
governed by the internal laws of the Commonwealth of Massachusetts without
regard to its conflict of laws provisions.

         8.      Notices.  Any notice, request, demand or other communication
required or permitted hereunder shall be in writing and shall be deemed to have
been given if delivered or sent by facsimile transmission, upon receipt, or if
sent by registered or certified mail, upon the sooner of the date on which
receipt is acknowledged or the expiration of three days after deposit in United
States post office facilities properly addressed with postage prepaid.  All
notices to a party will be sent to the addresses set forth below or to such
other address or person as such party may designate by notice to each other
party hereunder:



                                      3
<PAGE>   83
TO TUTOR-SALIBA
OR TUTOR:                           Tutor-Saliba Corporation
                                    c/o Ronald N. Tutor
                                    15901 Olden Street
                                    Sylmar, CA 91342
With a copy to:                     [COUNSEL]

TO PERINI:                          Perini Corporation
                                    73 Mt. Wayte Avenue
                                    Framingham, MA 01701-9160
                                    Attn:  Mr. David B. Perini

With a copy to:                     Goodwin, Procter & Hoar  LLP
                                    Exchange Place
                                    Boston, MA  02109
                                    Fax (617) 523-1231
                                    Attn:  Richard A. Soden, Esq.

Any notice given hereunder may be given on behalf of any party by such party's
counsel or other authorized representative.

         9.      Entire Agreement.  This Agreement, including the exhibit
referred to herein, is complete, reflects the entire agreement of the parties
with respect to its subject matter, and supersedes all previous written or oral
negotiations, commitments and writings.  No promises, representations,
understandings, warranties and agreements have been made by any of the parties
hereto except as referred to herein; and all inducements to the making of this
Agreement relied upon by either party hereto have been expressed herein.

         10.     Assignability; Binding Effect.  This Agreement shall not be
assignable by any of the parties hereto without the written consent of the
other parties.  This Agreement shall be binding upon and enforceable by, and
shall inure to the benefit of, the parties hereto and their respective
successors and permitted assigns.

         11.     Execution in Counterparts.  For the convenience of the parties
and to facilitate execution, this Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which shall
constitute one and the same document.

         12.     Amendments.  This Agreement may not be amended or modified,
nor may compliance with any covenant set forth herein be waived, except by a
writing duly and validly executed by each party hereto, or in the case of a
waiver, the party waiving compliance.

         13.     Confidentiality.  Tutor-Saliba and Tutor each hereby agree (i)
to keep confidential and not use in any manner adverse to Perini or any of its
subsidiaries or affiliates any confidential information about Perini, any of
its subsidiaries or any of its affiliates,



                                      4
<PAGE>   84
including without limitation financial information, trade secrets, bidding
processes and other information with respect to actual or prospective bids made
or being considered to be made by any of them and (ii) to indemnify and hold
harmless Perini, its subsidiaries and its affiliates for any and all loss,
cost, liability and expense arising out of a breach of this provision.



                                      5
<PAGE>   85
         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed as of the date first set forth above by their duly authorized
representatives.

                                    PERINI CORPORATION

                                    
                                    By:                                       
                                       ---------------------------------------
                                    Title:

                                    
                                    
                                    TUTOR-SALIBA CORPORATION

                                    
                                    By:                                       
                                       ---------------------------------------
                                    Title:

                                    
                                    
                                    RONALD N. TUTOR

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



                                      6
<PAGE>   86
                                   EXHIBIT A



SECTION 9. Indemnification of Directors and Officers

      9.1  General. subject to the provision of this Section and any limittions
imposed by law, the corporation shall indemnify its directors and officers
against all expenses incurred by them in connection with any proceeding in
which they are involved by reason of their serving in such capacities except
that (i) no indemnification shall be provided for any director or officer with
respect to any matter as to which he shall have been adjudicated not to have
acted in good faith and in the reasonable belief that his action was in the
best interests of the corporation, or with respect to a criminal matter, that
he had reasonable cause to believe that his conduct was unlawful, and (ii) no
indemnification shall be provided for any director or officer with respect to a
proceeding by or in the right of the corporation in which he is adjudicated to
be liable to the corporation.  Such indemnification may be provided to an
officer or director in connection with a proceeding in which it is alleged that
he received an improper personal benefit by reason of his position, regardless
of whether the claim involves his services in such capacity, subject to the
foregoing limitation, unless it shall have been determined that an improper
personal benefit was received by the director or officer.  Except as provided
in Section 9.2. indemnification under this Section 9 shall be authorized in
each case as determined by the board of directors, which may act
notwithstanding that one or more of these members are parties to the proceeding
in question or otherwise have an interest in such indemnification.

      9.2  Mandatory Indemnification.  Notwithstanding any contrary provisions
of this Section, if a director or officer of the corporation has been wholly
successful on the merits in defense of any proceeding in which he was involved
by reason of his position or an a result of his servinq in such capacity
(including the termination of investigative or other proceedings without a
finding of fault on the part of the director of officer), he shall be
indemnified by the corporation against all expenses incurred by him in
connection therewith.

      9.3  Definitions.  For purposes of this Section 9:

           (a)    A"director" or "officer" means any person serving in an
office filled by appointment or election by the directors or the stockholders
and also includes (i) a director
<PAGE>   87
or officer of the corporation serving at the request of the corporation as a
director, officer, employee, trustee, partner or other agent of another
organization, (ii) any person who formerly served as a director or officer, and
(iii) the heirs or personal representatives of such persons;

           (b)    "Expenses" means all expenses (including attorneys fees and
disbursements) actually and reasonably incurred in defense of a proceeding or
in successfully seeking indemnification under Section 9.2 hereof, and any
judgments, awards, fines, penalties and reasonable amounts paid in settlement
of a proceeding; and

           (c)    A"proceeding" means any threatened, pending or completed
action, suit or proceeding, whether civil, criminal, administrative or
investigative, and any claim which could be the subject of a proceeding.

      9.4  Advances.  Except as limited by law, expenses incurred by a director
or officer in defending any proceeding in which he is involved by reason of
serving in such capacities may be paid by the corporation in advance of final
disposition of the proceeding upon receipt of his written undertaking to repay
such amount if it is ultimately determined that he is not eligible to be
indemnified, which undertaking shall be an unlimited general obligation but
need not be secured and may be accepted without regard to the financial ability
of such persons to make repayment; provided, that no such advance payment shall
be made if it is determined by the board of directors on the basis of the
circumstances known at the time (without further investigation) that said
director or officer will ultimately be ineligible to be indemnified under this
section 9.

      9.5  Settlement Proceedings.  If a proceeding is compromised or settled
in a manner which imposes a liability or obligation upon a director or officer,
(i) no indemnification shall be provided to him with respect to a proceeding by
or in the right of the corporation unless the board of directors determines in
its discretion that indemnification is appropriate under the circumstances, and
(ii) no indemnification shall be provided to him with respect to any other type
of proceeding if it is determined by the board of directors that said director
or officer is ineligible to be indemnified under this Section 9. The
determination by the board of directors in each case shall be made on the basis
of the circumstances know to it at that time without further investigation.

      9.6  Insurance.  The corporation shall have power to purchase and
maintain insurance on behalf of any director,
<PAGE>   88
officer, employee or agent of the corporation against any liability or cost
incurred by him in any such capacity or arising out of his status as such,
whether or not the corporation would have the power to indemnify him against
such liability or cost.

      9.7  Employee Benefit Plans. If the corporation or any of its directors
or officers sponsors, undertakes or incurs any responsibility as a fiduciary
with respect to an employee benefit plan, then, for purposes of indemnification
of such person under this Section (i) a "director" or "officer" shall be deemed
to include any director or officer of the corporation who serves at its request
in any capacity with respect to said plan, (ii) such director or officer shall
be deemed not to have failed to have acted in good faith and in the reasonable
belief that his action has in the best interests of the corporation if he acted
in good faith and in the reasonable belief that his action was in the beat
interest of the participants or beneficiaries of said plan, and (iii)
"expenses" shall be deemed to include any taxes or penalties assessed on such
director or officer with respect to said plan under applicable law.

      9.8  Other Provisions.  The provisions of this section 9 shall not be
construed to limit the power of the corporation to indemnify its officers or
directors to the full extent permitted by law and enter specific agreements or
arrangements for this purpose.  In addition, the corporation shall have power
to indemnify any of its agents or employees who are not directors or officers
on any terms consistent with law which it deems to be appropriate.

      9.9  Amendment.  The provisions of this Section 9 may be amended or
repealed by the stockholders; however, no such amendment or repeal which
adversely affects the rights of a director of officer under this Section 9 with
respect to his acts or omissions at any time prior to such amendment or repeal,
shall apply to him without consent.

<PAGE>   89

                          AMENDMENT TO BY-LAWS OF PERINI CORPORATION


                 1.       Section 3.3 of the By-Laws shall be amended and
restated in its entirety as follows:

                          "3.3    Executive Committee and Other Committees.
         The directors, by a vote of a majority of the directors then in
         office, shall elect from their number an Executive Committee composed
         of five members and may elect such other committees the directors
         shall determine, and delegate to them authority to act as and for the
         Board to the extent permitted by law and as provided herein.

                                  "(A)     Neither the board of directors nor
         the Corporation shall take any of the following actions without the
         prior approval of a majority of the members of the Executive
         Committee: (a)  any borrowing or guarantee by the corporation
         exceeding $15 million, (b) except for issuances of stock or stock
         options pursuant to the corporation's incentive compensation plans or
         programs, any issuance of stock (whether common or preferred, whether
         voting or non-voting, whether junior or senior to the Series B
         Cumulative Convertible Preferred Stock) other than Common Stock of the
         corporation in an amount not exceeding five percent (5%) of the issued
         and outstanding Common Stock on September __, 1996, (c) any strategic
         alliance (other than a construction joint venture) involving a capital
         commitment exceeding $5 million, (d) any asset sale or lease exceeding
         $5 million (other than equipment dispositions in the normal course of
         business); (e) any redemption or amendment of the Preferred Share
         Purchase Rights, of the kind authorized and declared on September 23,
         1988 and distributed by the Corporation in September 1988 as the same
         have been amended prior to September __, 1996 ('Rights'), or the
         preferred stock of the Corporation issuable upon the exercise of such
         Rights, or any amendment of the Rights Agreement by and between the
         Corporation and the First National Bank at Boston, dated as of
         September 23, 1988, as amended; and (f) any termination of (other than
         a termination upon expiration) or amendment to the management
         agreement between the Corporation and Tutor-Saliba Corporation;
         provided, however, that for purposes of this Section 3.3(A) of the
         By-Laws, approval of the Executive Committee shall not be required for
         any decision by the Board of Directors to redeem the Series B
         Cumulative Convertible Preferred Stock pursuant to Section 6(a) of the
         terms thereof.  Notwithstanding the foregoing sentence, the board of
         directors of the Corporation may take any of the actions specified in
         the preceding sentence if, after having consulted with and considered
         the advice of outside counsel, it has reasonably determined in good
         faith that the failure of the board to take such action would be
         likely to cause the members of such board to breach their fiduciary
         duties under applicable law.

                                  "(B)     The Executive Committee shall make
         the rules for the conduct of its business; provided, however, that it
         shall have no permanent
<PAGE>   90
         chairman, shall report its actions to the board of directors, and
         shall keep minutes of its meetings. Other Committees created and
         elected by the directors may exercise such powers other than those
         powers delegated to the Executive Committee, as the directors
         determine.  Except as the directors may otherwise determine, any such
         other committee may make the rules for the conduct of its business,
         but unless otherwise provided by the directors or waived, its business
         shall be conducted, or its actions taken as nearly as may be the same
         manner as is provided for by these by-laws with respect to meetings or
         for the conduct of business or the taking of action by the directors.

                                  "(C)     All members of such committees shall
         hold such offices, and all such committees shall exist, solely at the
         pleasure of the board of directors; provided, however, that the
         Executive Committee may not be disbanded, reorganized, or
         reconstituted without the prior written approval of a majority of the
         members of the Executive Committee as constituted prior to such change
         (if the holders of the Series B Cumulative Convertible Preferred Stock
         then have the right to designate more than one member of the Executive
         Committee pursuant to the Certificate of Vote establishing such
         series, including the members so designated by the holders of the
         Series B Cumulative Convertible Preferred Stock); provided further,
         however, that the board shall not take any action that would result in
         there being fewer members of the Executive Committee designated by the
         holders of the Series B Cumulative Convertible Preferred Stock than
         such holders are entitled to designate pursuant to the Certificate of
         Vote establishing such series. The board shall have the power to
         rescind any action of any committee (other than decisions or actions
         of the Executive Committee pursuant to Section 3.3(A) or 4.5 hereof);
         provided, however, that no such rescission shall have any retroactive
         effect."

                 2.       Section 4.5 of the By-Laws shall be amended by
replacing the phrase "subject to the direction of the directors" each time it
appears therein with "subject to the direction of the Executive Committee for
so long as it exists and thereafter subject to the direction of the directors."


                                     - 2 -



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