EXHIBIT 4.12
                          REGISTRATION RIGHTS AGREEMENT

              REGISTRATION  RIGHTS  AGREEMENT dated as of January 17, 1997 among
PERINI CORPORATION,  a Massachusetts  corporation (together with its successors,
the  "Company"),  PB CAPITAL  PARTNERS,  L.P.  ("PB")  and THE 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, 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;
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.

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

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              "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  incorporated  by  reference  or  deemed to be
incorporated by reference in such registration statement.


                                        3





              "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  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.


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              "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 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

                                        5





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 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

                                        6





     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  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.


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              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.

              (c) Notify the selling Series B Securityholders, the Initial Stock
holders,   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

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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 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

                                        9





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 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

                                       10





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"  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

                                       11





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.

              (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.

                                       12





              (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 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

                                       13





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 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.


                                       14





              (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 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

                                       15





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, 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

                                       16





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.

              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.

                                       17






              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).


                                   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

                                       18





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 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

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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.

              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.


                                       20





              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.


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              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



                              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



                                       22




                               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
347652.c2


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