BIOGEN INC
10-Q, 1998-08-13
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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               SECURITIES AND EXCHANGE COMMISSION                Total Pages- 19
                    WASHINGTON, D.C. 20549                     Exhibit Index- 19


                          FORM 10-Q
(Mark one)

[X] Quarterly Report Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934

For the quarterly period ended      JUNE 30, 1998

                             OR

[ ] Transition Report Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934

For the transition period from                   to

                Commission File Number 0-12042



                         BIOGEN, INC.


    (Exact name of registrant as specified in its charter)


          Massachusetts                            04-3002117
   (State or other jurisdiction of     (I.R.S. Employer Identification No.)
  incorporation or organization)

14 Cambridge Center, Cambridge, MA                       02142
(Address of principal executive offices)           (Zip Code)


     Registrant's telephone number, including area code:  (617) 679-2000

     Former name, former address and former fiscal year, if changed since
last report:   Not Applicable


     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days.
                         Yes  X    No
Number of shares outstanding of each of the issuer's classes of common stock, as
of August 12, 1998:

  Common Stock, par value $0.01                    73,732,655
      (Title of each class)                    (Number of Shares)







                          B I O G E N , I N C .                           Page 2
                          ----------------------


                                  INDEX


                                                                        Page No.
PART I - FINANCIAL INFORMATION

   Condensed Consolidated Statements of Income -
     Three months and six months ended June 30, 1998 and 1997 . .           3

   Condensed Consolidated Balance Sheets -
     June 30, 1998 and December 31, 1997. . . . . . . . . . . . .           4

   Condensed Consolidated Statements of Cash Flows -
     Six months ended June 30, 1998 and 1997 . . . . . . . . . . .          5

   Notes to Condensed Consolidated Financial Statements . . . .             6

   Management's Discussion and Analysis of Financial
     Condition and Results of Operations  . . . . . . . . . . . . .        10

PART II - OTHER INFORMATION                                                16



                    * * * * * * * * * * * * * * * * * *



















Note concerning trademarks:   AVONEX(R) is a registered trademark
                              of Biogen, Inc.

                              HIRULOG(R)  is a registered trademark
                              of The Medicines Company.










                                                                          Page 3
<TABLE>
                         BIOGEN, INC. AND SUBSIDIARIES
                  CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                  (unaudited)
                    (in thousands, except per share amounts)
<CAPTION>

                                         Three Months              Six Months
                                       Ended June 30,            Ended June 30,
                                   ----------------------    ------------------
                                      1998        1997          1998      1997
                                   ----------------------    ------------------
<S>                                 <C>         <C>          <C>       <C>
REVENUES

   Product sales . . . . . . . .    $ 87,073    $56,440      $163,173  $109,056
   Royalties . . . . . . . . . .      41,739     36,007        80,111    78,222
   Interest  . . . . . . . . . .       6,963      5,206        13,931    10,113
                                     -------     ------       -------   -------

      Total revenues . . . . . .     135,775     97,653       257,215   197,391
                                     =======     ======       =======   =======

EXPENSES

  Cost of sales. . . . . . . . .      17,171     11,444        32,044    23,188
  Research and development . . .      42,135     32,014        79,255    69,922
  Selling, general and
      administrative . . . . . .      28,481     20,960        54,484    42,124
  Other, net   . . . . . . . . .         724       (190)          770       144
                                      ------      ------       ------   -------

Total expenses . . . . . . . . .      88,511     64,228       166,553   135,378
                                     -------     ------       -------   -------

INCOME BEFORE INCOME TAXES . . .      47,264     33,425        90,662    62,013

Income taxes . . . . . . . . . .      15,815     13,477        31,442    25,055
                                     -------     ------        ------   -------

NET INCOME . . . . . . . . . . .    $ 31,449    $19,948      $ 59,220  $ 36,958
                                      ======     ======        =======  =======

BASIC EARNINGS PER SHARE . . . .    $   0.43    $  0.27       $  0.80   $  0.50
                                      ======     ======        ======    ======
DILUTED EARNINGS PER SHARE . . .    $   0.41    $  0.26       $  0.77   $  0.48
                                      ======     ======        ======    ======
SHARES USED IN CALCULATING:
  BASIC EARNINGS PER SHARE . . .      73,772     73,887        73,854    73,578
                                      ======     ======        ======    ======
DILUTED  EARNINGS PER SHARE  . .      76,764     76,248        76,809    76,546
                                      ======     ======        ======    ======
</TABLE>




See Notes to Condensed Consolidated Financial Statements.







<TABLE>
                                                                          Page 4
                          BIOGEN, INC. AND SUBSIDIARIES
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                                 (in thousands)
<CAPTION>

                                                  June 30,1998       Dec.31,1997
                                                  (unaudited)
<S>                                               <C>                <C>
ASSETS
   Current assets
     Cash and cash equivalents. . . . . . . . .   $ 71,839           $ 70,358
     Marketable securities. . . . . . . . . . .    388,775            369,730
     Accounts receivable, net   . . . . . . . .     85,623             86,802
     Deferred tax asset . . . . . . . . . . . .     25,306             37,203
     Other current assets . . . . . . . . . . .     40,782             31,973
                                                   -------            -------
     Total current assets . . . . . . . . . . .    612,325            596,066
                                                   -------            -------
   Property, plant and equipment
     Cost . . . . . . . . . . . . . . . . . . .    254,053            240,513
     Less accumulated depreciation  . . . . . .     76,274             66,021
                                                   -------            -------
     Property, plant and equipment, net . . . .    177,779            174,492
                                                   -------            -------
   Other assets
     Patents, net . . . . . . . . . . . . . . .     16,105             14,935
     Marketable securities. . . . . . . . . . .     19,652             17,095
     Other  . . . . . . . . . . . . . . . . . .      7,710             11,237
                                                   -------            -------
     Total other assets. . . . . . . . . .  . .     43,467             43,267
                                                   -------            -------
                                                  $833,571           $813,825
                                                   =======            =======
LIABILITIES AND SHAREHOLDERS' EQUITY
   Current liabilities
     Accounts payable . . . . . . . . . . . . .   $ 17,842           $ 15,820
     Note payable . . . . . . . . . . . . . . .     14,559             24,817
     Current portion of long-term debt. . . . .      4,888              4,888
     Accrued expenses and other . . . . . . . .     68,287             78,358
                                                   -------            -------
     Total current liabilities. . . . . . . . .    105,576            123,883
                                                   -------            -------
   Long-term debt, less current portion             59,401             61,846
   Other long term liabilities . . . . . . . . .    15,798             15,132
   Put options . . . . . . . . . . . . . . . . .    33,335             76,671
   Commitments and contingencies . . . . . . . .

   Shareholders' equity
     Common stock  . . . . . . . . . . . . . . .       741                741
     Additional paid in capital  . . . . . . . .   511,460            516,880
     Retained earnings . . . . . . . . . . . . .   127,875             25,327
     Unrealized loss on
       marketable securities . . . . . . . . . .    (6,937)            (2,233)
     Cumulative translation adjustment . . . . .        (4)               (37)
     Treasury stock, at cost . . . . . . . . . .   (13,674)            (4,385)
                                                    -------            -------
   Total shareholders' equity  . . . . . . . . .    619,461            536,293
                                                    -------            -------
                                                   $833,571           $813,825
                                                    =======            =======
</TABLE>

See Notes to Condensed Consolidated Financial Statements.






                                                                          Page 5
<TABLE>
                        BIOGEN, INC. AND SUBSIDIARIES
                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                  (unaudited)
                                 (in thousands)
<CAPTION>

                                                     Six Months Ended
                                                         June 30,
                                              --------------------------------
                                                    1998          1997
                                              --------------  ----------------
<S>                                               <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES
   Net income. . . . . . . . . . . . . . . .      $ 59,220    $  36,958
   Adjustments to reconcile net income
    to net cash provided from
    operating activities:
    Depreciation and amortization . . . . . .       11,630        9,071
    Deferred income taxes . . . . . . . . . .       13,208         (318)
    Other . . . . . . . . . . . . . . . . . .           23        2,550
    Changes in:
     Accounts receivable  . . . . . . . . . .        1,179      (16,855)
     Other current and other assets . . . . .       (9,372)      (9,590)
     Accounts payable, accrued expenses and
      other current and long term
      liabilities . . . . . . . . . . . . . .       (7,383)      (3,571)
                                                   -------      -------
   Net cash provided from operating
    activities. . . . . . . . . . . . . . . .       68,505       18,245
                                                   -------      -------
CASH FLOWS FROM INVESTING ACTIVITIES
   Purchases of marketable securities . . . .     (350,035)    (217,012)
   Proceeds from sales and maturities of
     marketable securities. . . . . . . . . .      331,810      192,804
   Investment in collaborative partners . . .       (5,000)     (11,000)
   Acquisitions of property and equipment . .      (13,113)     (13,461)
   Additions to patents . . . . . . . . . . .       (2,974)      (3,562)
                                                  --------      -------
     Net cash used by investing activities. .      (39,312)     (52,231)
                                                  --------      -------
CASH FLOWS FROM FINANCING ACTIVITIES
   Repayments of note payable . . . . . . . .      (10,258)           -
   Proceeds from issuance of long-term debt .            -        4,545
   Payments of long-term deb  . . . . . . . .       (2,445)      (1,639)
   Purchases of treasury stock  . . . . . . .      (28,800)         -
   Tax benefit related to stock options . . .        4,723       21,001
   Issuance of common stock and option
     exercises. . . . . . . . . . . . . . . .        9,068       21,297
                                                  --------      -------
     Net cash (used by) provided from financing
     activities . . . . . . . . . . . . . . .      (27,712)      45,204
                                                   -------     --------
NET INCREASE IN CASH AND
  CASH EQUIVALENTS  . . . . . . . . . . . . .        1,481       11,218

CASH AND CASH EQUIVALENTS,
  BEGINNING OF PERIOD . . . . . . . . . . . .       70,358       62,032
                                                   -------      --------
CASH AND CASH EQUIVALENTS,
  END OF PERIOD  . . . . . . . . . . . . . .      $ 71,839    $  73,250
                                                   =======      ========
</TABLE>

See Notes to Condensed Consolidated Financial Statements.

                                                                          Page 6
                          BIOGEN, INC. AND SUBSIDIARIES
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (unaudited)

1.    In  the  opinion  of  management,  the  accompanying  unaudited  condensed
      consolidated  financial statements include all adjustments,  consisting of
      only normal recurring accruals,  necessary to present fairly the financial
      position,  results of  operations  and cash flows of Biogen,  Inc. and its
      subsidiaries  (the  "Company").  The  Company's  accounting  policies  are
      described  in  the  Notes  to  Consolidated  Financial  Statements  in the
      Company's  1997  Annual  Report  on Form  10-K.  Interim  results  are not
      necessarily indicative of the operating results for the full year.

      The  preparation  of financial  statements  in conformity  with  generally
      accepted  accounting  principles requires management to make estimates and
      assumptions that affect the reported amounts of assets and liabilities and
      disclosure  of  contingent  assets  and  liabilities  at the  date  of the
      financial  statements,  and the reported  amounts of revenues and expenses
      during the  reporting  period.  Actual  results  could  differ  from those
      estimates.  Certain  amounts  for the six months  ended June 30, 1997 have
      been reclassified to conform to the current period presentation.

      In June 1997, the Financial Accounting Standards Board issued Statement of
      Financial Accounting Standards Number 130 "Reporting Comprehensive Income"
      ("SFAS 130") and Statement of Financial  Accounting  Standards  Number 131
      "Disclosures  about  Segments of an  Enterprise  and Related  Information"
      ("SFAS  131").  The  Company  adopted  SFAS 130 and SFAS 131 on January 1,
      1998. SFAS 130 establishes  standards for reporting  comprehensive  income
      and its components in the consolidated financial statements. Comprehensive
      income for the three  months and six months  ended June 30, 1998 was $25.5
      million and $54.5 million,  respectively.  SFAS 131 establishes  standards
      for  reporting  information  on  operating  segments in interim and annual
      financial statements.

      On  June  15,  1998,  the  Financial  Accounting  Standards  Board  issued
      Statement of Financial  Accounting  Standards Number 133,  "Accounting for
      Derivative  Instruments and Hedging  Activities" ("SFAS 133"). SFAS 133 is
      effective for all fiscal quarters of all fiscal years beginning after June
      15, 1999  (January 1, 2000 for the  Company).  SFAS 133 requires  that all
      derivative  instruments  be recorded  on the  balance  sheet at their fair
      value.  Changes in the fair value of derivatives  are recorded each period
      in current earnings or other comprehensive income,  depending on whether a
      derivative is designated as part of a hedge transaction and, if it is, the
      type of hedge  transaction.  The Company has not yet determined the impact
      that the  adoption  of SFAS 133 will  have on its  financial  position  or
      results of operations.











                                                                          Page 7

Below is a summary of the shares  used in  calculating  basic and  diluted
earnings per share (in thousands):
<TABLE>
<CAPTION>

                            Three Months Ended     Six Months Ended
                                June 30,               June 30,
                         ---------------------    ---------------------------
                            1998       1997       1998         1997
                         ---------    --------   -----------   --------------
<S>                         <C>        <C>         <C>          <C>
Weighted average number
 of shares of common
 stock outstanding . . .    73,772     73,887      73,854       73,578
Dilutive stock options..     2,992      2,361       2,955        2,968
                            ------     ------      ------       ------
hares used in
 calculating diluted
 earnings per share. . .    76,764     76,248      76,809       76,546
                            ======     ======      ======       ======
</TABLE>


2.    As of June 30, 1998,  the Company had $20.0  million  outstanding  under a
      term loan  secured by a  laboratory  and  office  building  in  Cambridge,
      Massachusetts.  Principal  payments  of  $833,000  are  due  semi-annually
      through 2004 with the balance due on May 8, 2005.

      As of June 30, 1998,  the Company had $44.3  million  outstanding  under a
      loan agreement with a bank for financing the construction of the Company's
      biological  manufacturing  facility in North  Carolina (the  AConstruction
      Loan@).  The  Construction  Loan is secured by the  facility.  Payments of
      $805,000 are due quarterly  through 2006 with the balance due on March 31,
      2007.

      Terms  of  the  loan  agreements  include  various  covenants,   including
      financial  covenants,  which  require the Company to maintain  minimum net
      worth, cash flow and various financial ratios.

3.    Inventories, which are included in other current assets, are stated at the
      lower of cost or market with cost determined under the  first-in/first-out
      ("FIFO") method. Raw materials include inventory used in the production of
      pre-clinical  and  clinical  products,  which are expensed as research and
      development costs when consumed.  Inventories,  net of applicable reserves
      and allowances, at June 30, 1998 and December 31, 1997 are as follows:
<TABLE>
<CAPTION>

                                         (In Thousands)
                              June 30, 1998        December 31, 1997
                             ------------------   -------------------

          <S>                    <C>                   <C>
          Raw materials          $ 3,685               $ 4,957
          Work in process         17,743                 8,132
          Finished goods           8,816                 9,870
                                  ------                ------
                                 $30,244               $22,959
                                  ======                ======
</TABLE>







                                                                          Page 8

4.  On July 3, 1996, Berlex Laboratories, Inc. ("Berlex") filed suit against
    Biogen in the United States District Court for the District of New Jersey
    alleging infringement by Biogen of Berlex's "McCormick" patent in the United
    States in the production of Biogen's AVONEX(R)(Interferon beta-1a).  Berlex
    seeks a judgment granting it damages, a trebling of any damages awarded and
    a permanent injunction restraining Biogen from the alleged infringement.  An
    unfavorable ruling in the Berlex suit could have a material adverse effect
    on the Company's results of operations and financial position.  The Company
    believes that it has meritorious defenses to the Berlex claim; however, the
    ultimate outcome is not determinable at this time. Prior to the date of the
    suit filed by Berlex on the McCormick patent, Biogen had filed a suit
    against Schering AG ("Schering"), Berlex and the Board of Trustees of the
    Leland Stanford Jr. University ("Stanford") in the United States District
    Court for the District of Massachusetts for a declaratory judgment of
    non-infringement and invalidity of the McCormick patent contending that
    AVONEX(R), its manufacturing process and intermediates used in that process
    do not infringe the McCormick patent and that such patent is not valid.  In
    November 1996, the U.S. District Court in Massachusetts ruled that it had
    jurisdiction and Berlex's New Jersey action was transferred to Massachusetts
    and consolidated for pre-trial purposes with the Massachusetts case. In
    February 1997, the U.S. District Court in Massachusetts dismissed Biogen's
    declaratory judgment action as to Schering without  prejudice  if such
    dismissal  is later  shown to result in an injustice  to Biogen.  Biogen and
    Stanford  subsequently  entered into an agreement  voluntarily   dismissing
    Stanford  from  the  suit.  The  suit involving  Berlex is still  pending.
    A trial is not  expected  before the early part of 1999.

    In June 1996, ASTA Medica  Aktiengesellschaft  ("ASTA") filed for
    arbitration against  Biogen  with the  International  Chamber of  Commerce
    ("ICC") in connection with a dispute with Biogen regarding a License,
    Development and Supply Agreement, dated May 30, 1989 (the "1989 Agreement"),
    among Biogen, ASTA and Bioferon Biochemische Substanzen GmbH & Co
    ("Bioferon"). Bioferon was a joint venture between Biogen and Rentschler
    Arzneimittel GmbH & Co. of Laupheim, Germany, which entered bankruptcy in
    1993. In the proceeding, ASTA had asked for a  determination  that Biogen
    could not  terminate  the 1989 Agreement as to ASTA solely as a result of
    Bioferon's  bankruptcy and a further determination  that  Biogen was
    required  to supply  ASTA with recombinant beta interferon.  On March 13,
    1998, the ICC arbitration panel ruled  that,  as between  Biogen  and ASTA,
    the 1989  Agreement  was not terminated as a result of the bankruptcy of
    Bioferon,  but that Biogen was not required to perform  Bioferon's
    obligations  under the 1989 Agreement and, as a result,  had no obligation
    to supply recombinant beta interferon to ASTA. Under the 1989 Agreement,
    ASTA was granted an exclusive  license for a number  of  European  countries
    to  certain  intellectual  property relating to recombinant beta interferon,
    including Biogen's European Fiers patent  which has since been revoked by
    the European  Patent  Office.  In light of the  panel's  decision, Biogen
    has  notified  ASTA  that it was terminating  the 1989  Agreement  based on
    ASTA's  conduct  and failure to perform.  On March 19, 1998,  ASTA notified
    Biogen that it deemed Biogen's termination of the 1989 Agreement to be
    invalid. On or about May 14, 1998, ASTA filed a complaint  against Biogen in
    the United States District Court for the District of Massachusetts  seeking
    enforcement of the arbitration decision, injunctive relief, damages, relief
    pursuant to the Massachusetts Consumer Protection Act (Mass. Gen L. ch. 93A)
    and other

                                                                          Page 9

    relief arising out of additional  tort and contract  claims.  ASTA alleges
    that Biogen's termination of the 1989 Agreement based on ASTA's conduct is
    invalid and that ASTA is Biogen's  exclusive  licensee of recombinant beta
    interferon in the territories  specified in the 1989  Agreement.  To date,
    ASTA has not served  Biogen with the  complaint  in this case.  If served,
    Biogen intends to vigorously defend the lawsuit.

    On May 6, 1998,  a jury found in favor of the Company and  rejected all of
    the  plaintiff's  claims in a class action lawsuit  initiated  against the
    Company in 1994 in the United  States  District  Court for the District of
    Massachusetts. The  plaintiffs'  claims  in the  lawsuit  related  to the
    Company's 1994 public comments regarding  HIRULOG(R)  (bivalirudin) direct
    thrombin inhibitor.

    On or about  July 17,  1998,  Biogen  received a letter  demanding  relief
    pursuant to the Massachusetts  Consumer  Protection Act (Mass. Gen. L. ch.
    93A) on  behalf  of  an  alleged   class  of  persons   who  have  filled
    prescriptions  at pharmacies  owned and/or operated by CVS Pharmacy,  Inc.
    The demand purports to be made in connection with litigation filed against
    CVS and others in the  Massachusetts  Superior  Court  styled  Weld v. CVS
    Pharmacy, Inc., et al. Civil Action No. 98-0897-F. Biogen understands that
    the Weld plaintiffs filed an amended  complaint on or about July 15, 1998,
    naming Biogen (and other major pharmaceutical manufacturers) as additional
    defendants. Plaintiffs have yet to serve this amended complaint on Biogen.
    In pertinent  part,  the demand seeks  unspecified  monetary and equitable
    relief  from Biogen on account of  Biogen's  alleged  participation  in a
    direct  mailing program  to CVS  customers.  Plaintiffs  claim  that this
    alleged program violates these customers'  statutory and common law rights
    to privacy as well as Chapter 93A.  Biogen  disputes the claims  raised in
    the demand letter,  and intends to vigorously  oppose any subsequent legal
    action that may be taken in connection with the demand letter.  If served,
    Biogen also intends to vigorously oppose the claims  asserted in the Weld
    action.

5.  Income tax expense as a percent of pre-tax  income for the quarters  ended
    June 30, 1998 and 1997 was 33.5% and 40.3%,  respectively.  The  effective
    tax rate varied from U.S. statutory rates in the current quarter primarily
    due to an increase in European  sales and to the  utilization  of research
    and development credits. The effective tax rate varied from U.S. statutory
    rates in the comparable  period of 1997  primarily  due to the benefit of
    research and development and investment tax credits  partially  offset by
    foreign losses for which the Company received no tax benefit.

















                                                                         Page 10

                          BIOGEN, INC. AND SUBSIDIARIES
                MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                       CONDITION AND RESULTS OF OPERATIONS

Overview

Biogen,  Inc.  (the  ACompany@  or  ABiogen@)  is  a  biopharmaceutical  company
principally  engaged in the business of developing,  manufacturing and marketing
drugs for human health care. The Company  currently  derives revenues from sales
of  AVONEX(R)  (Interferon  beta-1a) for the  treatment  of  relapsing  forms of
multiple sclerosis  ("MS")and from royalties on worldwide sales by the Company=s
licensees  of a number of  products  covered  under  patents  controlled  by the
Company,  including  alpha  interferon  and hepatitis B vaccines and  diagnostic
products.

Results of Operations

For the quarter  ended June 30, 1998,  the Company  reported net income of $31.4
million or $0.41 per diluted  share as  compared  to $19.9  million or $0.26 per
diluted share for the  comparable  period of 1997. For the six months ended June
30, 1998, the Company  recorded net income of $59.2 million or $0.77 per diluted
share as compared to $37 million or $0.48 per diluted  share for the  comparable
period of 1997.

Total revenues for the current quarter were $135.8 million, as compared to $97.7
million in the quarter ended June 30, 1997, an increase of $38.1 million or 39%.
The increase in total  revenues  was  primarily  due to  increased  sales of the
Company=s  product  AVONEX(R).  Product sales for the current quarter were $87.1
million compared to $56.4 million for the comparable period in 1997, an increase
of $30.7  million  or 54.4%.  The growth in 1998 was due to an  increase  in the
sales volume of AVONEX(R)in  the United States as well as expansion into several
new countries in the European Union ("EU").  In March 1997, the Company received
regulatory  approval to market  AVONEX(R) in the fifteen member countries of the
EU. By the end of 1997, AVONEX(R) had received reimbursement approval and was on
the market in all of the EU countries.  In addition,  in April 1998, the Company
received approval to market AVONEX(R) in Canada.  AVONEX(R) sales outside of the
United States were  approximately $19 million in the current quarter as compared
to  approximately  $3 million in the  comparable  period of 1997.  Revenues from
royalties for the current  quarter were $41.7 million as compared to $36 million
for the  comparable  period  of 1997,  an  increase  of $5.7  million  or 15.8%,
primarily   as  a  result  of  an   increase  in  alpha   interferon   sales  by
Schering-Plough  Corporation   ("Schering-Plough")as  well  as  an  increase  in
royalties on sales of Hepatitis B vaccines sold by SmithKline and Merck.  In May
1998,  the Company and Schering  Corporation,  a subsidiary of  Schering-Plough,
amended the terms of the license agreement under which  Schering-Plough pays the
Company  royalties  on worldwide  sales of  Schering-Plough's  alpha  interferon
product, Intron(R) A. Under the terms of the amendment, Schering-Plough acquired
Biogen's  patent  application  and agreed to pay certain  sums on U.S.  sales of
Intron(R)  A from July 2002  until  expiration  of the alpha  interferon  patent
expected to be issued to  F.Hoffman-LaRoche,  Inc. and Genentech Inc., which was
the subject of a lawsuit filed by the Company. The lawsuit has been settled.

Total  revenues  for the six months  ended June 30, 1998 were $257.2  million as
compared  to $197.4  million in the  comparable  period of 1997,  an increase of
$59.8 million or 30.3%, primarily due to increased sales of


                                                                         Page 11

AVONEX(R).  Revenues from product sales for the six-month  period ended June 30,
1998  increased  $54.1  million  or 49.6% to $163.2  million,  or 63.5% of total
revenues,  compared  to  $109.1  million,  or 55.3% of  total  revenues,  in the
comparable  period of 1997.  Royalties during the six months ended June 30, 1998
increased  $1.9  million,  or 2.4% from the  comparable  period of 1997 to $80.1
million.

The Company  expects product sales as a percentage of total revenues to continue
to  increase  in the near term as the  Company  continues  to  market  AVONEX(R)
worldwide, and expects sales from AVONEX(R) in Europe to continue to increase as
a percentage  of total  product  sales.  The Company,  however,  expects to face
increasing   competition  in  the  MS  marketplace  from  existing  and  new  MS
treatments.  In the near term,  the Company  expects  overall  sales of licensee
products and royalty revenues to fluctuate depending on changes in sales volumes
for specific products, patent expirations,  new licensing arrangements,  if any,
or other developments.  Licensee sales levels may also fluctuate from quarter to
quarter  due to the  timing and extent of major  events  such as new  indication
approvals or government sponsored vaccination programs.

Interest  income for the current  quarter was $7.0 million,  an increase of $1.8
million or 34.6% as compared to $5.2 million in the  comparable  period of 1997.
For the six  months  ended June 30,  1998,  interest  income  was $13.9  million
compared to $10.1 million in the comparable  period of 1997, an increase of $3.8
million or 37.6%.  The  increase  in  interest  income is  primarily a result of
increased funds invested.

Total  expenses for the current  quarter were $88.5 million as compared to $64.2
million in the quarter  ended June 30,  1997,  an  increase of $24.3  million or
37.9%.  Cost of sales in the current quarter totaled $17.2 million,  an increase
of $5.8  million  from the  quarter  ended June 30,  1997.  Cost of sales in the
current quarter  includes  product costs relating to sales of AVONEX(R) of $13.9
million  compared to $8.8  million in the  quarter  ended June 30,  1997.  Gross
margins  for  product  sales  remained  flat at  approximately  84% for both the
current  quarter and the  comparable  period of 1997.  Cost of sales relating to
royalty  revenue  for the current  quarter was $3.3  million as compared to $2.6
million in the  comparable  period of 1997.  Gross  margins  on royalty  revenue
declined  slightly to 92.1% for the current quarter as compared to 92.8% for the
comparable  period of 1997.  The Company  expects that gross  margins on royalty
revenue will fluctuate in the future based on the impact of one-time royalty and
milestone payments.

Research and development expenses for the current quarter were $42.1 million, an
increase of $10.1  million or 31.6% as  compared  to the quarter  ended June 30,
1997. This increase was primarily due to an increase in clinical trial costs and
an increase in the Company=s  development  efforts related to other research and
development  programs  in  its  pipeline.  The  Company  expects  that,  in  the
long-term,  research  and  development  expenses  will  increase  as the Company
continues to expand its development  efforts with respect to new products and as
it  conducts   clinical   trials  of  these  products.   Selling,   general  and
administrative  expenses for the current quarter were $28.5 million, an increase
of $7.5 million or 35.7% as compared to the quarter  ended June 30,  1997.  This
increase was primarily due to higher selling and marketing  expenses  related to
sales of AVONEX(R),  principally in support of the ongoing  European  launch and
higher legal costs. The Company expects that selling, general and administrative
expenses will increase in the near and long-term as the
                                                                         Page 12

Company  continues to put in place the commercial  infrastructure  and sales and
marketing organizations necessary to sell AVONEX(R) worldwide.

Total expenses for the six-month  period ended June 30, 1998 were $166.6 million
as compared to $135.4 million in the  comparable  period of 1997, an increase of
$31.2  million or 23%. Cost of sales for the six months ended June 30, 1998 were
$32 million as compared to $23.2  million in the  comparable  period of 1997, an
increase of $8.8  million or 37.9%.  Cost of sales for the six months ended June
30,  1998 and 1997  included  $26 million and $16.6  million,  respectively,  of
product costs related to the sales of AVONEX(R). Gross margins for product sales
decreased  slightly to 84.1% for the six months  ended June 30, 1998 as compared
to 84.8% for the  comparable  period of 1997.  Cost of sales relating to royalty
revenue  decreased  $0.6 million to $6 million for the six months ended June 30,
1998 as  compared  to $6.6  million  for the  comparable  period of 1997.  Gross
margins on royalty revenue increased  slightly to 92.5% for the six months ended
June 30, 1998 as compared to 91.6% for the comparable period of 1997.

Research and development  expenses for the current  six-month  period were $79.3
million as compared to $69.9 million in the comparable period of 1997.  Included
in research and development  expenses for the six months ended June 30, 1997 was
a one-time  license fee of $5 million to CV  Therapeutics,  Inc.  Excluding  the
one-time license fee, research and development expenses for the six months ended
June 30, 1998,  increased  $14.4 million or 22.2% from the comparable  period of
1997. This increase was primarily due to an increase in clinical trial costs and
an increase in the Company's  development  efforts related to other research and
development  programs  in its  pipeline.  Selling,  general  and  administrative
expenses  for the  six-month  period  ended June 30, 1998 were $54.5  million as
compared to $42.1 million in the comparable period of 1997, an increase of $12.4
million or 29.5%.  This  increase was  primarily  due to the higher  selling and
marketing  expenses  related to sales of  AVONEX(R),  primarily  in Europe,  and
higher legal fees.

Income tax expense as a percent of pre-tax  income for the  quarters  ended June
30,  1998 and 1997 was 33.5% and 40.3%,  respectively.  The  effective  tax rate
varied from U.S.  statutory  rates in the current  quarter  primarily  due to an
increase in European sales and to the  utilization  of research and  development
credits.  The  effective tax rate in the  comparable  period of 1997 varied from
U.S.  statutory  rates  primarily due to the benefit of research and development
and  investment  tax  credits  offset by foreign  losses  for which the  Company
received no tax benefit.  The  Company=s  effective  tax rate for the six months
ended June 30, 1998 was 34.7%, and is expected to continue at or near this level
for the remainder of 1998.

Financial Condition

At June 30, 1998,  cash, cash  equivalents and short term marketable  securities
were $460.6  million  compared  with $440.1  million at December  31,  1997,  an
increase of $20.5 million.  Working  capital  increased  $34.6 million to $506.7
million  from  December  31,  1997 to June  30,  1998.  Net cash  provided  from
operating  activities  for the  six-month  period  ended June 30, 1998 was $68.5
million,  compared with $18.2  million in the  comparable  period of 1997.  Cash
outflows  for the six  months  ended  June 30,  1998,  included  investments  in
property and equipment  and patents of $16.1  million and $5 million  related to
research  collaboration  agreements.  Cash  outflows from  financing  activities
included note payable and loan  repayments of $12.7 million and  repurchases  of
the Company's common stock

                                                                         Page 13

at a total  cost of  $28.8  million.  Cash  inflows  from  financing  activities
included  $13.8  million from common stock  option and purchase  plan  activity,
including tax benefits related to stock options.

Several legal  proceedings were pending during the current quarter which involve
the Company.  See Note 4 of the Notes to the  Condensed  Consolidated  Financial
Statements and Part II Item 1 - Legal  Proceedings.  See also Item 1 - Business,
APatents and Other  Proprietary  Rights@ of the Company=s  Annual Report on Form
10-K for the fiscal year ended December 31, 1997 for  discussions of these legal
proceedings.

The Company  believes that existing funds and cash  generated from  operations
are  adequate  to  satisfy  its  working   capital  and  capital   expenditure
requirements in the foreseeable future. However, the Company may seek to raise
additional capital to take advantage of favorable  conditions in the market or
in connection with the Company's development activities.











































                                                                         Page 14

Outlook

Safe Harbor Statement under Private Securities Litigation Reform Act of 1995

In  addition  to  historical  information,  this  quarterly  report on Form 10-Q
contains  forward-looking  statements that involve risks and uncertainties  that
could cause actual  results to differ  materially  from those  reflected in such
forward-looking  statements.  Reference is made in particular to forward-looking
statements  regarding the anticipated level of future royalty revenues,  product
sales,  expenses and profits and  predictions as to the  anticipated  outcome of
pending  litigation.  These and all other  forward-looking  statements  are made
based on the  Company=s  current  belief as to the  outcome  and  timing of such
future  events.  Factors  which  could cause  actual  results to differ from the
Company=s  expectations and which could negatively  impact the Company=s results
of operations are discussed below and elsewhere in this Management=s  Discussion
and Analysis of Financial Condition and Results of Operations.

Dependence on AVONEX(R) Sales and Royalty Revenue

The Company's ability to sustain increases in revenues and profitability will be
primarily  dependent on the level of revenues and  profitability  from AVONEX(R)
sales. The Company's  ability to sustain  profitability  from sales of AVONEX(R)
will depend on a number of factors,  including:  continued market  acceptance of
AVONEX(R)  worldwide;  the Company's ability to maintain a high level of patient
satisfaction  with  AVONEX(R);  the nature of regulatory  and pricing  decisions
related  to  AVONEX(R)  worldwide  and the  extent to which  AVONEX(R)  receives
reimbursement  coverage;  market  acceptance  of  AVONEX(R)  outside  the United
States;  successful  resolution  of  the  lawsuit  with  Berlex  related  to the
"McCormick"  patent,  which if decided in  Berlex's  favor could have a material
adverse  effect on the Company's  financial  position and results of operations;
the  Company's  ability to sustain  market  share of  AVONEX(R)  in light of the
introduction  of competitive  products for the treatment of multiple  sclerosis;
the  success of  ongoing  development  work  related to  AVONEX(R)  in  expanded
multiple sclerosis indications and the continued  accessibility of third parties
to vial,  label, and distribute  AVONEX(R) on acceptable terms. The Company also
receives  royalty  revenues  which  contribute   significantly  to  its  overall
profitability.  The  Company's  ability  to  maintain  the level of its  royalty
revenues will depend on a number of factors, including: sustaining the scope and
validity of existing  patents;  the efforts of licensees in the clinical testing
and marketing of products from which the Company derives revenue; and the timing
and extent of royalties from additional  licensing  opportunities.  In addition,
licensee  sales levels may  fluctuate  from quarter to quarter due to the timing
and  extent of major  events  such as new  indication  approvals  or  government
sponsored vaccination programs.  There can be no assurance that the Company will
achieve a positive outcome with respect to any of the factors  discussed in this
Section or that the timing and extent of the  Company's  success with respect to
any  combination  of these  factors  will be  sufficient  to result in sustained
increases in revenues or  profitability  or the sustained  profitability  of the
Company.  For a further  discussion of risks regarding drug development,  patent
matters,  including the Berlex lawsuit on the "McCormick" patent, competition in
the multiple sclerosis market and regulatory  matters,  see the Company's Annual
Report on Form 10-K for the period  ended  December  31, 1997 under the headings
"Business - Risks Associated with Drug


                                                                         Page 15

Development",  "Business - Patents and Other  Proprietary  Rights",  "Business -
Competition   and  Marketing   -AVONEX(R)(interferon   beta-1a)",   "Business  -
Regulation",  "Legal  Proceedings" and "Management's  Discussion and Analysis of
Financial Condition and Results of Operations - Outlook."


New Products

AVONEX(R) is currently  the only  product  sold by the  Company.  The  Company=s
long-term  viability and growth will depend on the  successful  development  and
commercialization   of  other   products  from  its  research   activities   and
collaborations.  The Company has begun to expand its development efforts related
to other potential  products in its pipeline.  The expansion of the pipeline may
include  increases in spending on internal  projects,  the  acquisition of third
party   technologies  or  products  or  other  types  of  investments.   Product
development  involves a high degree of risk.  Many important  factors affect the
Company=s ability to successfully develop and commercialize drugs, including the
ability to obtain and maintain  necessary  patents and licenses,  to demonstrate
safety and  efficacy  of drug  candidates  at each stage of the  clinical  trial
process,  to  meet  applicable  regulatory  standards  and to  receive  required
regulatory  approvals,  to be capable of producing drug candidates in commercial
quantities at reasonable costs, to compete  successfully  against other products
and to market products successfully.  There can be no assurance that the Company
will be successful in its efforts to develop and commercialize new products.

































                                                                         Page 16
                           PART II - OTHER INFORMATION



Item 1 - Legal Proceedings

On May 6, 1998,  a jury found in favor of the  Company and  rejected  all of the
plaintiff's  claims in a class action lawsuit  initiated  against the Company in
1994 in the United States District Court for the District of Massachusetts.  The
plaintiffs'  claims in the lawsuit related to the Company's 1994 public comments
regarding HIRULOG(R) (bivalirudin) direct thrombin inhibitor.

On or about July 17, 1998, Biogen received a letter demanding relief pursuant to
the Massachusetts  Consumer  Protection Act (Mass. Gen. L. ch. 93A) on behalf of
an alleged class of persons who have filled  prescriptions  at pharmacies  owned
and/or  operated  by CVS  Pharmacy,  Inc.  The  demand  purports  to be  made in
connection  with  litigation  filed against CVS and others in the  Massachusetts
Superior  Court  styled Weld v. CVS  Pharmacy,  Inc.,  et al.  Civil  Action No.
98-0897-F.  Biogen  understands  that  the  Weld  plaintiffs  filed  an  amended
complaint  on  or  about  July  15,  1998,   naming   Biogen  (and  other  major
pharmaceutical  manufacturers) as additional defendants.  Plaintiffs have yet to
serve this amended  complaint on Biogen.  In  pertinent  part,  the demand seeks
unspecified  monetary  and  equitable  relief from Biogen on account of Biogen's
alleged  participation in a direct mailing program to CVS customers.  Plaintiffs
claim that this alleged program violates these  customers'  statutory and common
law rights to privacy as well as Chapter 93A.  Biogen disputes the claims raised
in the demand  letter,  and intends to vigorously  oppose any  subsequent  legal
action that may be taken in connection with the demand letter. If served, Biogen
also intends to vigorously oppose the claims asserted in the Weld action.

In June 1996,  ASTA Medica  Aktiengesellschaft  ("ASTA")  filed for  arbitration
against Biogen with the International  Chamber of Commerce ("ICC") in connection
with  a  dispute  with  Biogen  regarding  a  License,  Development  and  Supply
Agreement,  dated May 30, 1989 (the "1989  Agreement"),  among Biogen,  ASTA and
Bioferon  Biochemische  Substanzen GmbH & Co ("Bioferon").  Bioferon was a joint
venture  between  Biogen and  Rentschler  Arzneimittel  GmbH & Co. of  Laupheim,
Germany, which entered bankruptcy in 1993. In the proceeding, ASTA had asked for
a  determination  that Biogen could not terminate the 1989  Agreement as to ASTA
solely as a result of Bioferon's  bankruptcy  and a further  determination  that
Biogen was required to supply ASTA with recombinant  beta  interferon.  On March
13, 1998, the ICC arbitration  panel ruled that, as between Biogen and ASTA, the
1989 Agreement was not terminated as a result of the bankruptcy of Bioferon, but
that Biogen was not required to perform  Bioferon's  obligations  under the 1989
Agreement  and,  as a  result,  had no  obligation  to supply  recombinant  beta
interferon  to ASTA.  Under the 1989  Agreement,  ASTA was granted an  exclusive
license  for a number of European  countries  to certain  intellectual  property
relating to  recombinant  beta  interferon,  including  Biogen's  European Fiers
patent which has since been revoked by the European  Patent Office.  In light of
the panel's  decision,  Biogen  notified ASTA that it was  terminating  the 1989
Agreement  based on ASTA's  conduct and failure to perform.  On March 19,  1998,
ASTA notified Biogen that it deemed  Biogen's  termination of the 1989 Agreement
to be invalid.  On or about May 14, 1998, ASTA filed a complaint  against Biogen
in the United States  District Court for the District of  Massachusetts  seeking
enforcement of the arbitration decision,




                                                                         Page 17

injunctive  relief,  damages,  relief  pursuant  to the  Massachusetts  Consumer
Protection Act (Mass. Gen L. ch. 93A) and other relief arising out of additional
tort and contract  claims.  ASTA alleges that Biogen's  termination  of the 1989
Agreement based on ASTA's conduct is invalid and that ASTA is Biogen's exclusive
licensee of recombinant beta interferon in the territories specified in the 1989
Agreement.  To date, ASTA has not served Biogen with the complaint in this case.
If served, Biogen intends to vigorously defend the lawsuit.

Item 4 - Submission of Matters to a Vote of Security Holders

         (a)      The  information  set forth in this Item 4 relates  to matters
                  submitted to a vote at the Annual Meeting of  stockholders  of
                  Biogen, Inc. on June 19, 1998.

         (b)      Not applicable.

         (c)      A proposal to elect Alan Belzer, Dr. Mary L. Good, Dr. Kenneth
                  Murray  and James W.  Stevens  to serve for three  year  terms
                  ending in 2001 and until their successors are duly elected and
                  qualified was approved with the following vote:
<TABLE>
<CAPTION>


                  Nominee                    For           Authority Withheld
                  ------------------    ---------------  ---------------------
                  <S>                     <C>                   <C>
                  Alan Belzer             55,661,193            222,728
                  Mary L. Good            55,655,853            228,068
                  Kenneth Murray          55,743,926            139,995
                  James W. Stevens        55,681,831            202,090
</TABLE>

                  A proposal to ratify the  selection of Price  Waterhouse  LLP
                  as the  Company's  independent  accountants  for the fiscal
                  year ending   December  31,  1998  was  approved  with
                  55,760,281 affirmative votes,  39,934 negative votes,  83,706
                  abstentions and 0 broker non-votes.

          (d)     Not applicable.



Item 5 - Other Information

To be  considered  for inclusion in the proxy  statement  relating to the Annual
Meeting  of  stockholders  to be held in  1999,  stockholder  proposals  must be
received no later than January 8, 1999. To be considered for presentation at the
Annual Meeting, although not included in the proxy statement,  proposals must be
received no later than 60 days,  but not more than 90 days,  prior to the Annual
Meeting.  All  stockholder  proposals  should be marked for the attention of the
Vice President-General Counsel, Biogen, Inc., 14 Cambridge Center, Cambridge, MA
02142.











                                                                         Page 18

Item 6 - Exhibits and Reports on Form 8-K

         (a)     Exhibits

                 No. 27Financial Data Schedule (for EDGAR filing purposes only).

         (b)     On April  8,  1998,  the  Company  filed a report  on Form 8-K
                 disclosing  the  issuance of 3,350  shares of its Common Stock
                 under Regulation S of the Securities Act of 1933.

                 On May 7,  1998,  the  Company  filed a report  on Form 8-K to
                 disclose a decision by the U.S. Federal District Court for the
                 District of  Massachusetts  in connection  with a class action
                 suit  relating to the  Company's  1994 public  comments  about
                 HIRULOG(R)  (bivalirudin) direct thrombin inhibitor.  The jury
                 rejected  all  claims  made  by  the  plaintiffs  against  the
                 Company.



                                   SIGNATURES

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

                                        BIOGEN, INC.

Dated: August 13, 1998                         /s/Timothy M. Kish
                                        ----------------------------------
                                                Timothy M. Kish
                                          Vice President-Finance and
                                            Chief Financial Officer


<PAGE>


                                                                         Page 19
                           PART II - OTHER INFORMATION

EXHIBITS


Index to Exhibit.


  No. 10.1.1           Agreement and Amendment between the Company and Schering
                       Corporation dated May 1, 1998.*

  No. 10.1.2           1985 Non-Qualified Stock Option Plan, as amended through
                       June 20, 1998 and restated.

  No. 10.1.3           1982 Incentive Stock Option Plan, as amended through
                       June 20, 1998 and restated.

  No. 27               Financial Data Schedule (for EDGAR filing purposes only).





         *Confidential  treatment  requested  as  to  certain  portions,   which
         portions  are  omitted and filed  separately  with the  Securities  and
         Exchange Commission.


         ***Biogen,  Inc. has omitted from this Exhibit  10.1.1  portions of the
Agreement for which Biogen, Inc. has requested  confidential  treatment from the
Securities  and Exchange  Commission.  The portions of the  Agreement  for which
confidential  treatment  has been  requested are marked with X's in brackets and
such  confidential  portions have been filed  separately with the Securities and
Exchange Commission.***



                             AGREEMENT AND AMENDMENT

         This  Agreement and Amendment  (this "Biogen  Amendment") is made as of
this lst day of May, 1998, by and between Biogen, Inc., a corporation  organized
under the laws of the  Commonwealth  of  Massachusetts  and having its principal
place  of  business  at 14  Cambridge  Center,  Cambridge,  Massachusetts  02142
("Biogen"),  and Schering Corporation, a corporation organized under the laws of
the State of New  Jersey  and having its  principal  place of  business  at 2000
Galloping Hill Road, Kenilworth, New Jersey 07033 ("Schering").

                                   WITNESSETH:

         WHEREAS,   Schering  and  Biogen,   as  successor  to  Biogen  N.V.,  a
corporation organized under the laws of the Netherlands Antilles, are parties to
an Exclusive License and Development Agreement, dated December 8, 1979, relating
to human recombinant leukocyte interferon (such agreement, as amended to date by
the Prior Amendments as defined below, the "Biogen-Schering Agreement"); and

         WHEREAS,  certain  patent  rights owned or  controlled  by Schering and
Biogen, on the one hand, and by Hoffmann-La Roche, Inc. ("Roche") and Genentech,
Inc. ("Genentech"), on the other hand, covering the use, manufacture and sale of
the  respective  interferon  alpha  products of Schering  and Roche have been in
dispute as among Biogen, Schering, Roche and Genentech and have been the subject
of  an  interference   proceeding  before  -the  Board  of  Patent  Appeals  and
Interferences  of the United  States  Patent  and  Trademark  Office  ("USPTO"),
entitled David V. Goeddel and Sidney Pestka v. Charles  Weissmann,  Interference
No.  101,601 (the  "Interference"),  which  awarded  priority to the Goeddel and
Pestka Application (the "Roche/Genentech Patent Application") over the Weissmann
Application in the Interference.  This  Interference  decision has been appealed
('Interference  Appeal") to the United States District Court for the District of
Massachusetts (the "Court"); and

         WHEREAS,  all the parties wish to avoid the risk and expense  attendant
upon further  litigation and to settle all claims which have been brought in the
Interference  Appeal,  and in order to accomplish these objectives,  the parties
wish to enter  into a  settlement  agreement  as of the same date  hereof  which
specifies  the terms and  conditions  agreed to by the  parties to  resolve  the
Interference Appeal (the "Settlement Agreement"); and

         WHEREAS, in connection with the Settlement Agreement, Schering, Biogen,
Genentech  and Roche  (where  applicable)  have  agreed to execute  this  Biogen
Amendment and the Fourth Amendment to that certain  agreement dated May 14, 1985
by and between  Schering  and Roche  relating  to  recombinant  human  leukocyte
interferon (such agreement,  as amended by prior amendments  thereto,  dated May
14, 1985, August 27, 1986, and October 9, 1986, the "Roche-Schering  Agreement")
(the  "Fourth  Amendment,"  and the Biogen  Amendment  and the Fourth  Amendment
together, the "Amendments"); and

         WHEREAS,  Schering and Biogen agree to the  assignment of the Weissmann
Application to Schering upon the receipt of all required  governmental  consents
and approvals and the  observance of all  applicable  waiting  periods under the
Hart-Scott-Rodino  Antitrust Improvements Act ("HSR Act") in connection with the
Biogen  Amendment,  the  Fourth  Amendment  and the  Settlement  Agreement  (the
"Governmental Approvals"); and

         WHEREAS,  Schering recognizes that (i) royalty payments might have been
due to Biogen under the Biogen Agreement if the Weissmann  Application prevailed
and (ii) the  payments to be made  hereunder  are made in  consideration  of the
assignment to Schering of the Weissmann Application and the grant to Schering of
the rights set forth in Section 3.2.

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein,  the parties hereto,  intending to be legally bound, do hereby
agree as follows:

         1.    Definitions.

         1.1. All capitalized  terms used herein and not otherwise defined shall
have the respective earnings set forth in the Biogen-Schering Agreement.

1.2.  "Additional Patent Rights" shall mean any United States patents that shall
issue to  Biogen  from the  following  patent  applications  or any  divisional,
continuation, continuation-in-part, continuing prosecution application, reissue,
renewal or extension thereof or substitute therefor:[xxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxx]; however, U.S. Serial No. 471, 30 1, filed March 3, 1983 is excluded from
this definition.

<PAGE>

         1.3.     "Biogen Patent" shall mean U.S. Patent No. 4,530,901 entitled
"Recombinant DNA Molecules and
Their Use in Producing Interferon-Like Polypeptides," issued on July 23, 1985.

         1.4.  "Prior  Amendments"  shall mean the amendments and supplements to
the Exclusive icense and Development  Agreement dated as of December 8, 1979, by
and between Biogen, Biogen .V., and Biogen N.V. and Schering,  executed prior to
the date hereof,  including without  limitation the following:  (i) Supplemental
Agreement,  dated as of March 11, 1983, by and between Biogen N.V.,  Biogen B.V.
and  Schering;  (ii)  Amendatory  Agreement,  dated as of May 14,  1985,  by and
between  Biogen B.V. and Schering;  (iii)  Amendment and  Settlement  Agreement,
dated as of September 29, 1988 by and between Biogen,  Biogen B.V. and Schering;
(iv)  Amendment,  dated as of March 20,  1989 by and  between  Biogen  B.V.  and
Schering;  (v) Amendment,  dated as of March 23, 1992, by and between Biogen and
Schering;  and (vi) Supplemental  Amendment and Agreement,  dated as of March 1,
1994, by and between Schering and Biogen.

        1.5. "Roche Patent Rights" shall mean any United States patents that
shall issue from patent  applications  owned or controlled by Roche
individually or jointly with Genentech,  that were the subject of the
Interference,  including, but not limited to,[xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxx] or from any divisional,  continuation,  continuation-in-part,
continuing  prosecution application, reissue or extension thereof or substitute
therefor.

         1.6.     "Royalty Termination Date" shall mean (as applicable):

         a) with  respect to  Additional  Patent  Rights for any given  Licensed
Product  or  Licensed  Combination  Product,  the last to expire  of any  issued
Additional  Patent  Rights which has a claim that covers the  manufacture,  use,
offer to sell,  sale,  export or import of such  Licensed  Product  or  Licensed
Combinations Product (both as defined in the Biogen-Schering Agreement); or

         b) with  respect to the Roche  Patent  Rights,  for any given  Licensed
SCHERING  Product the last to expire of any issued Roche Patent Rights which has
a claim that covers the manufacture,  use, sale, offer to sell, export or import
of such Licensed SCHERING Products, as defined by the Roche-Schering  Agreement,
as amended by the Fourth Amendment.

         1.7.     "Weissmann Application" shall mean U.S. Serial No. 471,301
filed March 2, 1983.

         2. Roche Patent  Rights.  Biogen hereby  acknowledges  that Schering is
entering into the Fourth Amendment with Roche under

<PAGE>

which  Roche has  agreed to grant  Schering  an  exclusive  (even as to  Roche),
non-transferable  license  and  an  immunity  from  suit  under  the  Roche  and
Roche/Genentech  Patent  Rights  for use  solely  within  the  United  States to
manufacture,  have manufactured,  import,  export,  use, offer to sell, and sell
Licensed  SCHERING  Products  (as such terms are  defined by the  Roche-Schering
Agreement,  as amended by the Fourth Amendment).  Biogen also acknowledges that,
for consideration  granted herein, it retains no right, title or interest in the
rights granted to Schering by Roche in the Roche-Schering  Agreement, as amended
by the Fourth Amendment.

         3. Assignment of Weissmann Application.

         3.l.  Biogen hereby  agrees to assign,  transfer and convey to Schering
all of its right,  title and  interest in and to the  Weissmann  Application  by
executing  and  delivering,  within  ten  (10)  days of the last to occur of the
Governmental Approvals, an Assignment of Patent Rights substantially in the form
of Exhibit A attached hereto (the "Patent Assignment"). Biogen further covenants
and agrees that it will from time to time,  if requested  by Schering,  execute,
acknowledge  and deliver such  additional  documents and  instruments  as may be
reasonably necessary to effectuate the foregoing assignment.

         3.2. Biogen also agrees that it will assign to Schering, as assignee of
the  Weissmann  Application,   contemporaneously  with  the  assignment  of  the
Weissmann  Application,  the right (i) to contest or consent to the  decision of
the Board of Patent Appeals and  Interferences of the USPTO rendered on December
15, 1995 in the  Interference  and (ii) to take such  actions as Schering in its
sole  discretion  may  determine  in  order  to  carry  on  or to  conclude  the
Interference and the Interference Appeal.

         3.3. If, for any reason,  the Court does not approve,  or withdraws its
approval of, the Settlement  Agreement,  or the Settlement Agreement is declared
null and void ab initio after the assignments contemplated in paragraphs 3.1 and
3.2 herein occur,  then such assignments shall be deemed null and void ab initio
and have no further force and effect and Schering shall execute, acknowledge and
deliver  such  documents  and  instruments  as may be  reasonably  necessary  to
effectuate  the  reassignment  to  Biogen of all  rights  assigned  pursuant  to
Sections 3.1 and 3.2 herein.

         4.    Covenants of Schering.

         4.1.  Schering  hereby  covenants  and agrees that it shall (i) seek to
enforce in a commercially  reasonable matter Article 11 of the Fourth Amendment;
(ii) keep Biogen informed in


<PAGE>

a reasonably prompt manner of all substantive actions of which Schering is aware
have been  taken with  respect to the Roche  Patent  Rights;  and (iii)  provide
Biogen with copies of all substantive filings and substantive correspondence, to
the extent  permissible  under law, with respect to the Roche Patent Rights that
Schering receives from Roche
or any governmental authority.

         4.2.     Schering hereby represents and warrants that, other
than with  respect  to  certain  confidential  financial  terms  which have been
deleted, the copy of the Roche-Schering Agreement provided to Biogen on the date
hereof is true and correct.

         5.     Amendments to the Biogen-Schering Agreement.

         5.1. Section 5.1 of the Biogen-Schering  Agreement is hereby amended by
deleting the second sentence (Le., the first full sentence) beginning on page 29
of the  Biogen-Schering  Agreement,  as  amended  by the Prior  Amendments,  and
substituting in lieu thereof the following:

         Such   earned   royalties   shall   be   paid   (i)  at  the   rate  of
         [xxxxxxxxxxxxxxxxx]  with  respect  to  Licensed  Products  other  than
         Licensed  Combination  Products and [xxx] times the "proration  factor"
         with      respect      to      Licensed       Combination      Products
         [xxxxxxxxxxxxxxxxxxxxxxxxx]   of  aggregate   Sales  Value   (including
         aggregate Sales Value of Licensed  Combination  Products) of such sales
         during    each    License    Year    and    (ii)   at   the   rate   of
         [xxxxxxxxxxxxxxxxxxxxxxxxxx]  with respect to Licensed  Products  other
         than  Licensed  Combination  Products  and  [xxx]times  the  "proration
         factor" with respect to Licensed  Combination Products on the aggregate
         Sales Value  (including  aggregate Sales Value of Licensed  Combination
         Products) of all such sales  [xxxxxxxxxxxxxxxxxx]in  each License Year;
         provided  that no royalties  shall be paid under any  circumstances  on
         Licensed Products or Licensed Combination Products sold or manufactured
         in the United  States  following  the date of  expiration of the Biogen
         Patent, i.e., July 23, 2002 (the "Patent Expiration Date"); except that

                  (A) After the Patent  Expiration  Date and through the Royalty
                  Termination   Date,  in   consideration   of  the  assignments
                  described  in Sections 3.1 and 3.2 above,  royalties  shall be
                  paid (I) with respect to Licensed  Products sold in the United
                  States during the periods  specified below other than Licensed
                  Combination Products, at the royalty rates specified below and
                  (ii) with respect to Licensed Combination Products sold in the
                  United  States  during  such  periods  at  the  royalty  rates
                  specified below times the "proration factor"
<PAGE>


                                                                 Royalty Rate
                                                                (Percent of
                           Royalty Period                        Sales Value)

                           After the Patent Expiration               [xxx]
                           Date until July 22, 2003

                           On or after July 23, 2003                 [xxx]
                           until July 22, 2004

                           On or after July 23, 2004                 [xxx]
                           until July 22, 2005

                           On or after July 23, 2005                 [xxx]
                           until July 22, 2006

                           On or after July 23, 2006                 [xxx]
                           until July 22, 2007

                           On or after July 23, 2007 and             [xxx]
                           until the Royalty Termination
                           Date

                  ; and

                  (B) After the Patent Expiration Date, with respect to Licensed
                  Products and Licensed Combination Products manufactured in the
                  United  States and sold outside the United  States,  royalties
                  shall be paid if and only to the extent that Biogen still owns
                  an unexpired  patent or supplementary  protection  certificate
                  covering  such  Licensed  Products  or  Licensed   Combination
                  Products  in the  country in which such  Licensed  Products or
                  Licensed  Combination  Products are sold.  Any such  royalties
                  shall  be paid (i) at the  rate of  [xxxx  xxxxxxxxxxxx]  with
                  respect to Licensed  Products other than Licensed  Combination
                  Products and [xxx] times the  "proration  factor" with respect
                  to    Licensed    Combination    Products    on   such   sales
                  [xxxxxxxxxxxxxxxx   xxxxxxxx]   of   aggregate   Sales   Value
                  (including  aggregate  Sales  Value  of  Licensed  Combination
                  Products) of sales during each License  Year;  and (ii) at the
                  rate of  [xxxxxxxxxxxxxxxxxxxxxx]  with  respect  to  Licensed
                  Products and [xxx] times the  "proration  factor" with respect
                  to  Licensed  Combination  Products  on such sales  within the
                  aggregate  Sales  Value  (including  aggregate  Sales Value of
                  Licensed  Combination  Products) of all sales  [xxxxxxxxxxxxxx
                  xxxxx] in each License Year.


<PAGE>

         For purposes of the foregoing subsections (A) and (B), the Roche Patent
         Rights  shall be deemed  to be a "patent  with  respect  to any  Biogen
         Invention" under Section 1. 14(a)(i) of this Schering-Biogen Agreement.


         5.2.[xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx].

         6.    Consents and Approvals; Cooperation.

         6.1.   Schering  and  Biogen  shall  in  good  faith  cooperate  to
obtain  all Governmental  Approvals.  Both parties  agree to: (i) take  promptly
all actions necessary  to make the  filings  required  of the  parties;  (ii)
comply at the earliest practicable date with any requests for additional
information received either by Biogen or Schering from a governmental authority;
and (iii) furnish to each other such  information  and  assistance as may
reasonably be requested in connection with the foregoing,  to the extent
permissible under law. Biogen and Schering  agree to provide the other with
copies of all  correspondence  between either of them (or their advisors) and
any government  antitrust entity relating to this Biogen  Amendment,  the
Fourth Amendment or the Settlement  Agreement to the extent  permissible  under
law.  Biogen and Schering agree that all meetings with a governmental  authority
relating to any matters described in this Section 6.1 shall include
representatives of both Biogen and Schering unless Biogen and Schering jointly
decide otherwise or the governmental  authority objects to such attendance.

         6.2.  Nothing in this Biogen  Amendment  shall require Biogen or
Schering,  as a consequence of any government action or threatened  action,  to
change,  modify, add, or delete any material term in this Biogen Amendment,  or
to take any other action that shall have a material adverse effect on such
party. Either party may provide notice to the other party that it concludes, in
good faith, it would not be feasible and  consistent  with the intentions of the
parties in entering into this Biogen Amendment to continue the  effectiveness of
this Biogen Amendment in the event any governmental agency seeks to enjoin or a
court enjoins the parties from acting pursuant to this Biogen Amendment or a
governmental  authority seeks to terminate this Biogen Amendment. Upon the
receipt of such notice by the other party, this Biogen Amendment shall be

<PAGE>

declared null and void ab initio and the Biogen-Schering  Agreement shall remain
in full force and effect as if this Biogen  Amendment and Patent  Assignment had
never been  executed,  and  Schering  shall  execute an  assignment  in mutually
satisfactory form assigning the Weissmann Application to Biogen.

         7.  Confidentiality.  No party  shall make any public  statements  with
respect to this Biogen Amendment or the transactions or agreements  contemplated
hereby,  the Fourth Amendment,  the Interference,  the Interference  Appeal, the
Settlement Agreement,  nor shall any of the parties hereto disclose to any third
party  the  terms  of  this  Biogen  Amendment  or any of the  other  agreements
referenced in this Section 7, or the relationships  created hereby,  without, in
any such case, the prior written consent of the other parties hereto,  except as
required by law or  regulation.  Each party may make a press release  concerning
this  Biogen  Agreement  or the  Settlement  Agreement,  but agree that prior to
making such release,  such party will submit the text thereof to the other party
and shall issue the release only with the approval of such party, which approval
shall not be unreasonably  withheld;  provided,  that, once information has been
released in accordance  with this Section 7, the  information  contained in such
release may  subsequently  be released by the releasing  party without the prior
approval or consent of the other party.

         8.  Revocation.  In addition to those rights specified in Paragraph 6.2
above, this Biogen Amendment and the Patent  Assignment (if executed),  shall be
null and void ab initio,  and Schering  shall  execute an assignment in mutually
satisfactory form assigning the Weissmann  Application to Biogen and the present
Biogen-Schering Agreement (prior to this Biogen Amendment), shall remain in full
force and  effect as if this  Biogen  Amendment  and the Patent  Assignment  (if
executed)  had never been  executed,  if (i) either a stay of  litigation in the
Interference Appeal agreed to by the parties in the Settlement  Agreement is not
granted by the court or is lifted by the court prior to the  termination  of the
Interference Appeal by Schering,  as assignee of Biogen, under the provisions of
Paragraph  3 of the  Settlement  Agreement;  (ii) the  Settlement  Agreement  is
properly  declared  null and void ab initio or a  governmental  authority  whose
prior  approval must be obtained,  enjoins,  rejects or rescinds the  Settlement
Agreement,  the Fourth Amendment, or this Biogen Amendment or otherwise fails to
render a final approval on or before  December 31, 1998; or (iii) Roche fails to
enter into the Fourth Amendment.

         9. Covenants of Biogen.  Section 12.1 of the Biogen-Schering  Agreement
shall apply to the  prosecution  of  Additional  Patent  Rights.  In addition,
Biogen  hereby  covenants  and agrees  that it shall (i) keep  Schering  fully
informed of all actions

<PAGE>

taken with respect to the Additional Patent Rights,  and (ii) provide Schering
with copies of all  proposed  filings and  correspondence  with respect to the
Additional  Patent  Rights at least thirty (30) days before  submission to the
relevant patent office, and give good faith  consideration to any comments and
suggestions of Schering with respect  thereto.  Any and all costs and expenses
incurred  by  Biogen in  connection  with any such  actions  shall be borne by
Biogen.

         10.      Miscellaneous.

         10.1.  This Biogen  Amendment  shall  constitute  an  amendment  of the
  Biogen-Schering Agreement within the meaning of Section 18 thereof.

         10.2. Except as expressly set forth herein,  all of the other terms and
  conditions  of the  Biogen-Schering  Agreement  shall remain in full force and
  effect.

         10.3. In the event of any  inconsistency  between this Biogen Amendment
  and the Biogen  Agreement  (as  previously  amended),  the  provisions of this
  Biogen Amendment shall govern.

         IN WITNESS WHEREOF, the parties have caused this Biogen Amendment to be
executed by their  respective  officers  hereunto duly authorized as of the date
and year first written above.


                                    SCHERING  CORPORATION


                                    By:  /s/Thomas C. Lauda
                                    Name:  Thomas C. Lauda
                                    Title: Vice President


                                    BIOGEN, INC.


                                    By:   /s/James R. Tobin
                                    Name:   James R. Tobin
                                    Title:  President & Chief Executive Officer











<PAGE>



                                                                      EXHIBIT A

                           Assignment of Patent Rights

         ASSIGNMENT OF PATENT RIGHTS, dated as of May _, 1998 from Biogen, Inc.,
a Massachusetts  corporation ("Biogen"),  to Schering Corporation,  a New Jersey
corporation ("Schering").

                                   WITNESSETH

         WHEREAS,  Biogen  and  Schering  have  entered  into an  Agreement  and
Amendment  dated as of even date hereof (the  "Biogen  Amendment"),  pursuant to
which Biogen has agreed to transfer  certain  patent rights to Schering upon the
receipt of certain governmental approvals and consents and observance of certain
waiting periods specified therein ("Governmental Approvals") in exchange for the
payment by Schering of certain royalties specified therein.

         NOW, THEREFORE, in consideration of the premises and in satisfaction of
its  obligation  under the  Biogen  Amendment  and for other  good and  valuable
consideration,  the  receipt,  adequacy  and  sufficiency  of  which  is  hereby
acknowledged,  Biogen  hereby  conveys,  transfers  and assigns to, and vests in
Schering  and its  successors  and  assigns,  all of Biogen's  right,  title and
interest,  in and to the patent rights  described on Schedule A attached  hereto
(the "Assigned Patent Rights").

         TO HAVE AND TO HOLD all of the  foregoing  Assigned  Patent Rights unto
Schering, its successors and assigns, to its and their own proper use forever:

         1. Biogen, for itself and its successors and assigns,  hereby covenants
that, at any time and from time to time after  delivery of this  instrument,  at
Schering's  request and expense but without further  consideration,  Biogen will
do,  execute,  acknowledge  and  deliver,  or will  cause to be done,  executed,
acknowledged  and  delivered,  all and every  such  further  acts,  conveyances,
instruments,  transfers,  assignments,  powers of  attorney  and  assurances  as
reasonably  may be required for the better  assuring,  conveying,  transferring,
confirming  and vesting in or to  Schering,  the  Assigned  Patent  Rights or to
enable  Schering,  its successors  and assigns,  to realize upon or otherwise to
enjoy the Assigned Patent Rights.

         2. This  instrument  is executed  by, and shall be binding upon Biogen,
its  successors  and  assigns,  for the uses and  purposes  above  set forth and
referred to, effective as of the date hereof.

<PAGE>

         3.Terms used herein shall have the same meaning that such  terms  have
when  used  in the  Biogen  Amendment.  In the  event  of any inconsistency
between the  provisions  hereof and the  provisions of the Biogen Amendment,
the provisions of the Biogen  Amendment  shall be  controlling.  The
representation  and  warranties  and other  terms and  conditions  of the Biogen
Amendment shall be  incorporated in and shall survive  execution and delivery of
this Assignment of Patent Rights.

        4. This  Assignment  of Patent Rights shall be governed by and construed
and enforced in accordance with the laws of the state of New Jersey.

         IN WITNESS WHEREOF,  Biogen and Schering have caused this Assignment of
Patent  Rights  to be  signed  by their  respective  authorized  officers  as an
instrument under seal, on the day and year first above written.



                                     SCHERING CORPORATION



                                     By:      __________________________
                                     Title:


                                     BIOGEN, INC.



                                     By:      ___________________________
                                     Title:





















<PAGE>



                                                                      SCHEDULE A
                             Assigned Patent Rights

         "Assigned Patent Rights" shall mean the patent application designated
as U.S. Serial No. 471,301 filed
March 2, 1983.















































                                  BIOGEN, INC.
                      1985 NON-QUALIFIED STOCK OPTION PLAN
                 (AS AMENDED THROUGH JUNE 20, 1998 AND RESTATED)


I.       PURPOSE OF THE PLAN

         The Plan is intended to  encourage  ownership of shares of Common Stock
of the  Company  by certain  employees  and  Directors  of the  Company  and its
Affiliates  and to  provide  an  additional  incentive  to those  employees  and
Directors to promote the success of the Company and its Affiliates.

II.      DEFINITIONS

     1. "Company" means Biogen, Inc., a Massachusetts corporation.

     2.  "Affiliate"  means a  corporation  in respect of which the Company owns
directly or indirectly  fifty percent (50%) or more of the voting shares thereof
or which is otherwise controlled by the Company.

     3. "Committee" means the Stock and Option Plan Administration Committee of
the Board of Directors of the Company.

     4. "Option" means a stock option granted under this Plan.

III. SHARES SUBJECT TO THE PLAN

     The aggregate number of shares as to which Options may be granted from time
to time shall be  20,454,000  of the shares of Common  Stock of the Company (par
value $.01);  provided,  however that such aggregate  number shall be reduced by
the  number of shares  which has been sold  under,  or may be sold  pursuant  to
options  granted from time to time under,  the Company's  1982  Incentive  Stock
Option Plan (the "ISO Plan"),  to the same extent as if such sales had been made
or options granted pursuant to this Plan.

     If any  option  granted  under  this Plan or the ISO Plan  ceases to be
"outstanding", in whole or in part, other than by reason of the exercise of such
option,  the shares which were subject to such option shall be available for the
granting of other Options.  Any option shall be treated as  "outstanding"  until
such option is exercised in full,  terminates  under the provisions of this Plan
or the ISO Plan, as the case may be, or expires by reason of lapse of time.

     The aggregate number of shares as to which Options may be granted shall be
subject to change only by means of an amendment  adopted in  accordance  with
Article XI below, subject to the provisions of Article VIII.

IV.  ADMINISTRATION OF THE PLAN

     The Plan shall be  administered  by the  Committee.  The  membership of the
Committee shall be determined,  and shall be subject to change without cause and
without notice from time to time, by the Board of Directors of the Company.

     The Committee is  authorized to interpret the  provisions of the Plan or of
any Option and to make all rules and  determinations  necessary or advisable for
the  administration of the Plan.  Subject to the provisions of the Plan, Options
may be granted upon such terms and conditions as the Committee may prescribe.

     This Plan is  intended  to comply in all  respects  with Rule  16b-3 or its
successors  promulgated  under the Securities  Exchange Act of 1934 ("1934 Act")
with respect to participants  who are subject to Section 16 of the 1934 Act, and
any  provision in this Plan with respect to such persons  contrary to Rule 16b-3
shall be  deemed  null  and void to the  extent  permissible  by law and  deemed
appropriate by the Committee.

V.   ELIGIBILITY FOR PARTICIPATION

     The Committee  shall  determine  which  employees  and  Directors  shall be
eligible to  participate  in the Plan.  Without  limiting the  generality of the
foregoing, Options may be awarded for reasons of performance,  merit, promotion,
bonus or upon new employees joining the Company or any Affiliate.

     The Committee  may grant to one or more such  employees or Directors one or
more Options, and shall designate the number of shares to be optioned under each
Option so granted;  provided,  however,  that no Options  shall be granted after
December  31,  2002.  In no event shall any  employee be granted in any calendar
year options to purchase or receive more than 1,200,000  shares of the Company's
Common Stock pursuant to this Plan.

VI.  TERMS AND CONDITIONS OF OPTIONS

     No Option issued  pursuant to this Plan shall be an incentive  stock option
under Section 422 of the Internal Revenue Code of 1986, as amended.  Each Option
shall be set forth in writing in an Option agreement, duly executed on behalf of
the Company and by the person to whom such Option is granted. No Option shall be
deemed  to have been  granted  and no  purported  grant of any  Option  shall be
effective  until such  Option  shall have been  approved by the  Committee.  The
Committee may provide that Options be granted

<PAGE>

subject to such  conditions  as the Committee  may deem  appropriate,  including
without  limitation,  subsequent  approval by the shareholders of the Company of
this Plan or any amendments thereto. Each such Option agreement shall be subject
to at least the following terms and conditions:

     A. Option  Price:  Except as otherwise  determined  by the  Committee,  the
Option price per share for Options  granted under the Plan shall be equal to the
fair market  value per share of Common Stock on the date of grant of the Option;
provided,  however, that in no event shall the Option price be less than the par
value per share of Common  Stock.  Fair market value shall be the average of the
"high"  and "low"  sale  prices  as  reported  in the  National  Association  of
Securities  Dealers Automated  Quotation System ("NASDAQ") for the date of grant
of the Option or, if none,  for the most recent trading date thirty (30) days or
less  prior to the date of grant of the  Option  on which the  Common  Stock was
traded.

     B. Term of Option: Each Option shall terminate not more than ten (10) years
from the date of the grant  thereof,  or at such  earlier  or later  time as the
Committee shall expressly resolve.

     C. Date of Exercise: The Committee may prescribe the date or dates on which
the Option becomes exercisable, and may provide that the Option rights accrue or
become exercisable in installments over a period of months or years, or upon the
attainment of stated goals.

     D. Cancellation and Repurchase Rights: The Committee may stipulate that any
Option which becomes exercisable shall be subject to cancellation or that shares
purchased upon the exercise of such Option shall be subject to repurchase rights
in favor of the Company. In such event the Committee shall determine the date or
dates, or event or events,  upon which such  cancellation  or repurchase  rights
shall become effective or shall lapse, as the case may be.

     E.  Medium of  Payment:  The Option  price  shall be  payable  upon the
exercise of the Option.  It shall be payable in cash,  or, if  permitted  by the
Committee, in shares or other consideration.

     F.  Termination  of  Employment:  An Option  holder who ceases (for any
reason other than death or total and  permanent  disability  or  termination  of
employment  for cause) to be an  employee  or  Director  of the Company or of an
Affiliate  may  exercise  any Option  granted  to the  extent  that the right to
purchase  shares  thereunder has accrued on the date of such  termination.  Such
Option  shall be  exercisable  only within  three (3) months  after such date of
termination, or, if earlier, within

<PAGE>

the  originally  prescribed  term of the  Option,  unless  the  Committee  shall
authorize a  different  period.  Employment  shall not be deemed  terminated  by
reason of a transfer to another employer which is the Company or an Affiliate.

     An Option  holder  whose  employment  with the Company or an  Affiliate  is
terminated  by his/her  employer for cause or a Director who is removed from the
Board of Directors for cause shall forthwith upon such termination cease to have
any right to exercise any Option. For purposes of this paragraph,  "cause" shall
be deemed to include  dishonesty with respect to the employer,  insubordination,
substantial  malfeasance or  non-feasance  of duty,  unauthorized  disclosure of
confidential information,  and conduct substantially prejudicial to the business
of the Company or any Affiliate.  The  determination  of the Committee as to the
existence of cause shall be conclusive.

     An Option  holder to whom an Option has been granted under the Plan who
is absent from work with the Company or with an  Affiliate  because of temporary
disability,  or who is on a permitted  leave of absence for any  purpose,  shall
not, during the period of any such absence,  be deemed by virtue of such absence
alone,  to have  terminated his employment with the Company or with an Affiliate
except as the Committee may otherwise expressly provide.

     G. Total and  Permanent  Disability:  If an Option  holder  ceases to be an
employee or Director  of the Company or of an  Affiliate  by reason of total and
permanent disability,  as determined by the Committee, any Option held by him or
her on the date of disability  shall be exercisable as to all or any part of the
shares  subject to the Option,  all of which  shares shall be fully vested as of
the date of such  disability.  A disabled Option holder may exercise such Option
only  within a period of one (1) year  after the date as of which the  Committee
determines that he or she became disabled or within such different period as may
be determined by the Committee, or, if earlier, within the originally prescribed
term of the Option.

     H. Death:  If an Option  holder dies while the Option holder is an employee
or Director of the Company or of an Affiliate,  any Option held by him or her at
the  date of  death  shall be  exercisable  as to all or any part of the  shares
subject to the Option,  all of which shares shall be fully vested as of the date
of the Option holder's  death. A deceased Option holder's legal  representatives
or  one  who  acquires  the  Option  by  will  or by the  laws  of  descent  and
distribution may exercise such Option only within a period of one (1) year after
the date of death or within such  different  period as may be  determined by the
Committee, or, if earlier, within the originally prescribed term of the Option.


<PAGE>

     I.  Exercise of Option and Issue of Shares:  Options shall be exercised
by giving written notice to the Company, addressed to the Company at the address
specified in the Option agreement, with which the Option holder shall tender the
Option price.  Such written notice shall be signed by the person  exercising the
Option,  shall  state the number of shares  with  respect to which the Option is
being exercised,  and shall contain any warranty  required by Article VII of the
Plan. The issuance of the Option shares may be delayed by the Company if any law
or regulation requires the Company to take any action with respect to the Option
shares prior to the issuance  thereof.  Without  limiting the  generality of the
foregoing,  nothing  contained  herein shall be deemed to require the Company to
issue any Option shares if prohibited by law or applicable regulation.

     The shares shall, upon issuance, be evidenced by an appropriate certificate
or certificates in respect of paid-up, non-assessable shares.

     J.  Assignability  and  Transferability  of Option: By its terms, an Option
granted to an Option  holder  shall not be  transferable  by such Option  holder
other  than  (i) by will or by the  laws of  descent  and  distribution  or (ii)
pursuant  to a qualified  domestic  relations  order,  as defined by the Code or
Title 1 of the Employee  Retirement Income Security Act or the rules thereunder,
or  (iii)  as  otherwise  determined  by the  Committee  and  set  forth  in the
applicable Option agreement. The designation of a beneficiary of an Option by an
Option  holder  shall not be deemed a  transfer  prohibited  by this  paragraph.
Except as provided in the preceding  sentence,  an Option shall be  exercisable,
during an Option holder's lifetime,  only by the Option holder (or by his or her
legal representative) and shall not be assigned, pledged, or hypothecated in any
way  (whether  by  operation  of law or  otherwise)  and shall not be subject to
execution,  attachment or similar process.  Any attempted transfer,  assignment,
pledge,  hypothecation,  or other  disposition  of any  Option or of any  rights
granted thereunder contrary to the provisions of this Paragraph,  or the levy of
any attachment or similar process upon an Option or other such rights,  shall be
null and void.

     K. Other Provisions:  The Option agreements authorized under the Plan shall
be subject to such other terms and conditions,  including,  without  limitation,
restrictions  upon the  exercise  of the  Option,  as the  Committee  shall deem
advisable.

     L. Non-Employee, Non-Scientific Board Directors' Options: Each Director who
is not (i) an employee of the Company or any of its Affiliates, or (ii) a member
of the  Scientific  Board  of the  Company,  or  (iii)  elected  pursuant  to an
agreement or arrangement


<PAGE>

between shareholders of the Company or between the Company and its shareholders,
upon first being appointed or elected to the Board of Directors,  and upon every
third anniversary thereof,  shall be granted an Option to purchase 30,000 shares
of Common Stock. Each such Option shall have an exercise price equal to the fair
market value per share of Common Stock on the date of grant, as determined under
Section VI.A.  above,  and a term of ten (10) years, and shall be exercisable as
to one-third  (1/3) of the shares  subject  thereto upon  completion of one full
year of service on the Board of Directors after the date of grant,  and as to an
additional  one-third  (1/3)  upon  completion  of each  full  year  of  service
thereafter.  For any such  Director  serving in office on December 6, 1991,  the
first such Option  shall be granted on the date on which the most recent  Option
previously  granted to him, the vesting of which is  contingent  upon  continued
service on the Board of Directors,  becomes fully vested, and subsequent Options
under this Paragraph  shall be granted on every third  anniversary of such date.
Notwithstanding  the provision of Section XI  concerning  amendment of the Plan,
the  provisions of this Section VI.L.  shall not be amended more than once every
six months,  other than to comport with changes in the Internal  Revenue Code of
1986,  as amended,  the Employee  Retirement  Income  Security Act, or the rules
thereunder.  The grants of options  under this  Paragraph  L are  intended to be
non-discretionary  formula  awards  within the meaning of Rule  16b-3(c)(2)(ii).
Paragraph  F of  Article  VI,  which  cancels  the  Options  of any  Participant
determined by the Committee to have been  terminated for cause,  shall not apply
to the awards under this Paragraph L.

     M. Tax Withholding:  In the event that any federal,  state, or local income
taxes,  employment  taxes,  Federal  Insurance  Contributions  Act  ("F.I.C.A.")
withholdings  or other  amounts are required by applicable  law or  governmental
regulation to be withheld from the Option holder's salary in connection with the
exercise of an Option,  the Option  holder shall advance in cash to the Company,
or to any Affiliate of the Company which employs or employed the Option  holder,
the amount of such  withholdings  unless a  different  withholding  arrangement,
including the use of shares of the Company's  Common Stock, is authorized by the
Committee  (and  permitted  by law),  provided,  however,  that with  respect to
persons subject to Section 16 of the 1934 Act, any such withholding  arrangement
shall be in compliance with any applicable  provisions of Rule 16b-3 promulgated
under Section 16 of the 1934 Act. For purposes hereof,  the fair market value of
the shares withheld for purposes of payroll  withholding  shall be determined in
the manner provided in Section VI.A.  above,  as of the most recent  practicable
date  prior to the date of  exercise.  If the fair  market  value of the  shares
withheld is less than the amount of payroll  withholdings  required,  the Option
holder may be


<PAGE>

required to advance the difference in cash to the Company or the Affiliate
employer.

     N. Reload Options:  The Committee may authorize reload options ("Reload
Options") to purchase for cash or shares a number of shares of Common Stock. The
number of Reload  Options  shall equal (i) the number of shares of Common  Stock
used to exercise the underlying Options and (ii) to the extent authorized by the
Committee,  the  number  of  shares  of Common  Stock  used to  satisfy  any tax
withholding  requirement incident to the exercise of the underlying Options. The
grant of a Reload Option will become  effective  upon the exercise of underlying
Options  through the use of shares of Common  Stock held by the  optionee for at
least 6  months.  Reload  Options  must be  evidenced  in Option  agreements  or
amendments  to those  agreements.  The  Option  price per share of Common  Stock
deliverable  upon the exercise of a Reload Option shall be the fair market value
of a share of Common  Stock on the date the grant of the Reload  Option  becomes
effective. The term of each Reload Option shall be equal to the remaining option
term of the underlying  Option. No additional Reload Options shall be granted to
Option holders when Options and/or Reload Options are exercised  pursuant to the
terms of this Plan following termination of the Option holder's employment or on
account of death or total and permanent disability. All other provisions of this
Plan with respect to Options shall apply equally to Reload Options.

     O.  Rights  as a  Shareholder:  No Option  holder  shall  have  rights as a
shareholder  with respect to any shares covered by such Option except as to such
shares as have been  registered in the Company's  share  register in the name of
such person upon the due exercise of the Option.

VII. PURCHASE FOR INVESTMENT

     If and to the  extent  that the  issuance  of  shares  pursuant  to the
exercise of Options is deemed by the Company to be subject to the United  States
Securities Act of 1933, as now in force or hereafter amended ("1933 Act"), or to
the  securities  law of any other  jurisdiction,  the Company  shall be under no
obligation to issue shares covered by such exercise unless the person or persons
who  exercises or who exercise such Option shall make such warranty or take such
action as may be required by any  applicable  securities  law of any  applicable
jurisdiction and shall, in the case of the applicability of the 1933 Act, in the
absence of an effective registration under such Act with respect to such shares,
warrant to the  Company,  at the time of such  exercise,  that such person is or
that they are  acquiring  the  shares  to be  issued to such  person or to them,
pursuant to such exercise of the Option,  for investment and not with a view to,
or for sale in connection with, the distribution of any such shares; and in such

<PAGE>

events  the  person  or  persons  acquiring  such  shares  shall be bound by the
provisions  of a legend  endorsed  upon any share  certificates  expressing  the
requirements of any applicable  non-United  States  securities law, or, in cases
deemed governed by the 1933 Act, substantially the following legend, which shall
be endorsed upon the certificate or certificates evidencing the shares issued by
the Company pursuant to such exercise:

     "The shares have not been  registered  under the securities laws of any
country, including the United States Securities Act of 1933, as amended, and the
Company  may refuse to permit the sale or  transfer  of all or any of the shares
until (1) the Company has  received  an opinion of Counsel  satisfactory  to the
Company that any such transfer is exempt from registration  under all applicable
securities  laws or (2) in the case of sales or  transfers  to which the  United
States  Securities  Act of 1933 is applicable,  unless a registration  statement
with respect to such shares shall be effective under such Act, as amended."

      Without limiting the generality of the foregoing, the Company may delay
issuance  of the  shares  until  completion  of any action or  obtaining  of any
consent which the Company deems  necessary  under any  applicable law (including
without limitation state securities or "blue sky" laws).

VIII. ADJUSTMENTS UPON CHANGES IN CAPITALIZATION

      In the event that the  outstanding  Common Stock,  $.01 par value,  of the
Company is changed into or exchanged for a different number or kind of shares or
other  securities  of the  Company  or of another  corporation  by reason of any
reorganization,  merger,  consolidation,   recapitalization,   reclassification,
change in par value,  stock split-up,  combination of shares or dividend payable
in  capital  stock,  or the like,  appropriate  adjustment  shall be made in the
number and kind of shares for the purchase of which Options may be granted under
the Plan,  including Options to be granted pursuant to Article VI L hereof, and,
in  addition,  appropriate  adjustment  shall be made in the  number and kind of
shares and in the Option price per share subject to outstanding  Options so that
each Option holder shall be in a position  equivalent to the position the Option
holder  would  have  been  in  had  the  Option  holder  exercised  the  Options
immediately prior to the applicable event.

IX.  DISSOLUTION OR LIQUIDATION OF THE COMPANY

     Upon the dissolution or liquidation of the Company other than in connection
with transactions to which the preceding Article VIII is applicable, all Options
granted hereunder shall terminate and become null and void;  provided,  however,
that if the rights hereunder of an Option holder or one who acquired an

<PAGE>

Option by will or by the laws of descent  and  distribution  have not  otherwise
terminated  and expired,  the Option  holder or such person shall have the right
immediately  prior to such  dissolution  or  liquidation  to exercise any Option
granted hereunder to the extent that the right to purchase shares thereunder has
accrued as of the date of  exercise  immediately  prior to such  dissolution  or
liquidation.

X.   TERMINATION OF THE PLAN

     Unless the  Committee  shall  decide to reduce or,  subject to  shareholder
approval,  if required under Article XI, to extend the duration of the Plan, the
Plan shall  terminate on December 31,  2002.  Termination  of the Plan shall not
affect  any  Options  granted  or any Option  agreements  executed  prior to the
effective date of termination.

XI.  AMENDMENT OF THE PLAN

     The Plan may be amended by the  Committee  or the Board of Directors of the
Company  provided,  however,  that if the scope of any  amendment  is such as to
require  shareholder  approval in order to comply with Rule 16b-3 under the 1934
Act such amendment  shall require  approval by the  shareholders.  Any amendment
shall not affect  any  Options  theretofore  granted  and any Option  agreements
theretofore  executed by the Company and any Option holder unless such amendment
shall  expressly so provide.  No  amendment  shall  adversely  affect any Option
holder with respect to an outstanding Option without the written consent of such
Option holder. With the consent of the Option holder affected, the Committee may
amend any outstanding  Option  agreement in a manner not  inconsistent  with the
Plan, including,  without limitation,  to accelerate the date of exercise of any
installment of any Option.

XII. EMPLOYMENT RELATIONSHIP

     Nothing  herein  contained  shall be deemed to  prevent  the  Company or an
Affiliate from  terminating  the employment of any employee,  nor to prevent any
employee from terminating his/her employment with the Company or an Affiliate.

XIII.EFFECTIVE DATE

     This Plan first became effective on January 2, 1985.




                                  BIOGEN, INC.
                        1982 INCENTIVE STOCK OPTION PLAN
                 (AS AMENDED THROUGH JUNE 20, 1998 AND RESTATED)

 I.      DEFINITIONS AND PURPOSE

         A.  Definitions:  References  in this  document to the "Company" are to
Biogen,  Inc., a Massachusetts  corporation;  reference to the "Plan" are to the
Biogen,  Inc. 1982 Incentive Stock Option Plan;  references to the "Code" are to
the United States Internal  Revenue Code of 1986, as amended.  Unless  otherwise
specified or unless the context otherwise requires, the following terms, as used
in the Plan, have the following meanings:

         1. "Affiliate"  means a corporation  which, for purposes of Section 422
of the Code, is a parent or subsidiary of the Company, direct or indirect.

         2.  "Disability"  means  permanent  and total  disability as defined in
Section 105(d)(4) of the Code.

         3. "Key  Employee"  means an employee of the Company or of an Affiliate
(including, without limitation, an employee who is also serving as an officer of
the Company or of an  Affiliate),  designated by the Committee to be eligible to
be granted one or more Options under the Plan.

         4. "Option" means a right or option granted under the Plan.
         5.  "Participant"  means a Key Employee to whom one or more Options are
granted   under  the  Plan.   As  used  herein,   "Participant"   shall  include
"Participant's Survivors" where the context requires.

         6.  "Participant's  Survivors"  means a  deceased  Participant's  legal
representatives  and/or any person or persons  who  acquired  the  Participant's
rights to an Option by will or by the laws of descent and distribution.

         7.  "Shares"  mean those shares of the Common  Stock,  $.01 par value,
of the Company as to which Options
have been or may be granted under the Plan.

         B. Purposes Of The Plan: The Plan is intended to encourage ownership of
the  Shares  of the  Company  by Key  Employees  in  order to  attract  such Key
Employees,  to induce such Key  Employees to remain in the employ of the Company
or of an Affiliate and to provide additional incentive for such Key Employees to
promote

<PAGE>

the  success of the  Company or its  Affiliates.  It is  further  intended  that
Options issued  pursuant to the Plan shall be eligible to constitute  "incentive
stock options" within the meaning of Section 422 of the Code.

II.  SHARES SUBJECT TO THE PLAN

     The aggregate  number of Shares as to which Options may be granted from
time to time shall be 20,454,000;  provided,  however that such aggregate number
shall be reduced by the number of shares  which have been sold under,  or may be
sold  pursuant to options  granted  from time to time under the  Company's  1985
Non-Qualified Stock Option Plan (the "1985 Plan"), to the same extent as if such
sales had been made or options granted pursuant to this Plan.

     If any option  granted  under  this Plan or the 1985 Plan  ceases to be
"outstanding", in whole or in part, other than by reason of the exercise of such
option,  the shares which were subject to such option shall be available for the
granting of other Options.  Any option shall be treated as  "outstanding"  until
such option is exercised in full,  terminates  under the provisions of this Plan
or the 1985 Plan, as the case may be, or expires by reason of lapse of time.

     The aggregate number of Shares as to which Options may be granted shall
be subject to change only by means of an  amendment  of the Plan duly adopted by
the Company  and  approved by the  Shareholders  of the Company  within one year
before or after the date of the adoption of any such  amendment,  subject to the
provisions of Article VII.

III. ADMINISTRATION OF THE PLAN

     The  Plan  shall  be   administered   by  the  Stock  and  Option  Plan
Administration Committee of the Company (the "Committee"). The membership of the
Committee  shall be determined  and shall be subject to change without cause and
without notice from time to time, by the Company.

     The Committee is authorized to interpret the  provisions of the Plan or
of any Option and to make all rules and  determinations  necessary  or advisable
for the  administration  of the Plan. It may from time to time  determine  which
employees  of the  Company  or of  any  Affiliate  shall  be  designated  as Key
Employees and which of the Key Employees shall be granted  Options and,  subject
to the other provisions of the Plan, the number of Shares for which an Option or
Options shall be granted.  Subject to the provisions of the Plan, Options may be
granted upon such

<PAGE>

terms and conditions as the Committee may  prescribe;  provided,  however,  that
such terms and conditions  shall be prescribed in the context of preserving,  to
the extent reasonably  possible,  the United States tax status of the Options as
incentive stock options.

     This Plan is intended to comply in all respects  with Rule 16b-3 or its
successors  promulgated  under the Securities  Exchange Act of 1934 ("1934 Act")
with respect to participants  who are subject to Section 16 of the 1934 Act, and
any  provision in this Plan with respect to such persons  contrary to Rule 16b-3
shall be  deemed  null  and void to the  extent  permissible  by law and  deemed
appropriate by the Committee.

IV.  ELIGIBILITY FOR PARTICIPATION

     Each  Participant  must  be a Key  Employee  of  the  Company  or of an
Affiliate at the time an Option is granted.

     The  Committee  may  grant  to one or more  Key  Employees  one or more
Options,  and shall  designate  the number of Shares to be  optioned  under each
Option so granted;  provided,  however,  that no Options  shall be granted after
December 31, 2002, and provided further,  that the fair market value (determined
as of the date the  Options  are  granted)  of the Shares as to which  incentive
stock  options  granted  on or  after  January  1,  1987 by the  Company  or its
Affiliates  to any  individual  employee  under the Plan and/or  under any other
incentive  stock  option  plans are  exercisable  for the first  time in any one
calendar year shall not exceed $100,000.

     Notwithstanding  any of the  foregoing  provisions,  the  Committee may
authorize  the  grant of an  Option  to a person  not then in the  employ of the
Company or of an Affiliate, conditioned upon such person becoming eligible to be
a Participant  at or prior to the execution of the Option  agreement  evidencing
such Option.

     In no event shall any employee be granted in any calendar  year options
to purchase or receive more than 1,200,000  shares of the Company's Common Stock
pursuant to this Plan.

V.   TERMS AND CONDITIONS

     Each Option shall be set forth in writing in an Option agreement,  duly
executed on behalf of the Company and by the  Participant to whom such Option is
granted.  No Option shall be deemed to have been granted and no purported  grant
of any Option shall be effective, until such Option shall have been approved by

<PAGE>

the Committee. The Committee may provide that Options be granted subject to such
conditions as the Committee may deem appropriate,  including without limitation,
subsequent  approval  by the  shareholders  of the  Company  of this Plan or any
amendments thereto.  Each such Option agreement shall be subject to at least the
following terms and conditions:

     A. Option  Price:  If,  including for this purpose the Shares which are
the  subject of Options  previously  granted and  outstanding  or proposed to be
granted  hereunder,  the optionee owns 10% or less of the total combined  voting
power of all  classes of share  capital of the  Company,  the Option  price (per
share) of the Shares covered by each Option granted  hereunder shall be not less
than the fair market value (per share) of the Shares on the date of the grant of
the Option;  provided,  however, that in no event shall the Option price be less
than the par value per share of Common  Stock.  In all other  cases,  the Option
price shall be not less than 110% of the said fair market  value.  For  purposes
hereof, the fair market value shall be the average between the high and low sale
prices, as reported in the National  Association of Securities Dealers Automated
Quotation System ("NASDAQ") for the date of the grant of the Option or, if none,
for the most recent  trading  date thirty  (30)days or less prior to the date of
the grant of the Option on which the Common Stock was traded. If the fair market
value cannot be determined under the preceding sentence,  it shall be determined
in good faith by the Committee.

     B. Number of Shares:  Each  Option  shall state the number of Shares to
which it pertains.

     C. Term of Option:  Each  Option  shall  terminate  at such date as the
Committee,  at the time it authorizes the grant of the Option,  shall determine,
and shall be subject to earlier  termination as herein provided,  except that if
the option price is required under  Paragraph A of this Article V to be at least
110% fair market value,  each such Option shall terminate not more than five (5)
years from the date of the grant  hereof;  and provided  that in no case may the
term of any Option exceed ten (10) years.

     D. Date of Exercise:  The  Committee may prescribe the date or dates on
which the Option  becomes  exercisable,  and may provide that the Option  rights
accrue or become  exercisable in installments  over a period of months or years,
or upon the  attainment  of stated goals.  The Committee may stipulate  that any
Option which becomes exercisable shall be subject to cancellation or that Shares
purchased upon the exercise of such Option shall

<PAGE>

be subject to  repurchase  rights in favor of the  Company.  In such event,  the
Committee shall determine the date or dates, or event or events, upon which such
cancellation or repurchase  rights shall become effective or shall lapse, as the
case maybe.

     E.  Medium of  Payment:  The option  price  shall be  payable  upon the
exercise of the Option.  It shall be payable in cash,  or, if  permitted  by the
Committee and by Section 422 of the Code, in shares or other consideration.

     F. Prior Options: By its terms, each Option granted prior to January 1,
1987  under the Plan to a  Participant,  shall not be  exercisable  while  there
is"outstanding"  any other incentive stock option (as defined in the predecessor
to Section 422 of the Code),  which was granted before the grant of such Option,
to such Participant to purchase Shares in the Company or in an Affiliate or in a
predecessor of the Company or of an Affiliate.

     G. Termination of Employment:  A Participant who ceases (for any reason
other than death or disability or termination by the Participant's  employer for
cause) to be an employee of the Company or of an  Affiliate,  may  exercise  any
Option  granted to such  Participant,  to the extent  that the right to purchase
Shares thereunder has accrued on the date of such termination of employment, but
only within three (3) months, or such shorter period as may be determined by the
Committee,  after such date, or, if earlier,  within the  originally  prescribed
term of the Option. A Participant's employment shall not be deemed terminated by
reason of a transfer to another employer which is the Company or an Affiliate.

     A Participant  whose  employment  is  terminated  by the  Participant's
employer for cause shall forthwith upon such termination cease to have any right
to exercise any Option. For purposes of this paragraph,  "cause" shall be deemed
to include dishonesty with respect to the employer, insubordination, substantial
malfeasance or  non-feasance  of duty,  unauthorized  disclosure of confidential
information,  and  conduct  substantially  prejudicial  to the  business  of the
Company or any Affiliate. The determination of the Committee as to the existence
of cause shall be conclusive on the Participant and Company.

      A Participant  to whom an Option has been granted under the Plan who is
absent  from work with the  Company or with an  Affiliate  because of  temporary
disability,  or who is on leave of  absence  for any  purpose  permitted  by any
authoritative interpretation of Section 422, shall not, during the period of any
such absence, be deemed, by virtue of such absence alone, to have terminated his
employment with the Company or with an

<PAGE>

Affiliate, except as the Committee may otherwise expressly provide.

     H. Disability: If a Participant ceases to be an employee of the Company
or of an Affiliate by reason of Disability, any Option held by him or her on the
date of  Disability  shall be  exercisable  as to all or any part of the  Shares
subject to the Option,  all of which shares shall be fully vested as of the date
of such Disability.  A Disabled Participant may exercise such Option only within
a period of one (1) year  after the date as of which  the  Committee  determines
that he or she became Disabled, or, if earlier, within the originally prescribed
term of the Option.

     I. Death: If a Participant dies while the Participant is an employee of
the  Company or of an  Affiliate,  any Option  held by him or her at the date of
death shall be  exercisable  as to all or any part of the Shares  subject to the
Option,  all of  which  shares  shall  be  fully  vested  as of the  date of the
Participant's death. A deceased Participant's Survivors may exercise such Option
only  within a period of one (1) year after the date of death,  or, if  earlier,
within the originally prescribed term of the Option.
     J.  Exercise of Option and Issue of Shares:  Options shall be exercised
by giving written notice to the Company, addressed to the Company at the address
specified in the Option  agreement,  with which the Participant shall tender the
Option price.  Such written notice shall be signed by the person  exercising the
Option,  shall  state the number of Shares  with  respect to which the Option is
being  exercised,  and shall  contain any  warranty  required by Article VI. The
issuance  of the Shares may be delayed by the  Company if any law or  regulation
requires  the Company to take any action with respect to the shares prior to the
issuance  thereof.  Without  limiting the generality of the  foregoing,  nothing
contained  herein  shall be deemed to require the Company to issue any Shares if
prohibited by law or applicable regulation.

     The  Shares  shall,  upon  delivery,  be  evidenced  by an  appropriate
certificate or certificates in respect of paid-up, non-assessable Shares.

     K. Rights as a  Shareholder:  No Participant to whom an Option has been
granted shall have rights as a shareholder with respect to any Shares covered by
such Option  except as to such Shares as have been  registered  in the Company's
share  register  in the name of such  Participant  upon the due  exercise of the
Option.
      L.        Assignability and Transferability of Options: By its

<PAGE>

terms,  an Option  granted to a  Participant  shall not be  transferable  by the
Participant  otherwise  than by will or by the laws of descent and  distribution
and  shall be  exercisable,  during  the  Participant's  lifetime,  only by such
Participant.  Such Option shall not be assigned, pledged, or hypothecated in any
way  (whether  by  operation  of law or  otherwise)  and shall not be subject to
execution,  attachment, or similar process. Any attempted transfer,  assignment,
pledge,  hypothecation,  or other  disposition  of any  Option or of any  rights
granted  thereunder  contrary to the provisions of this Paragraph L, or the levy
of any  attachment  or similar  process upon an Option or such rights,  shall be
null and void.

    M. Tax  Withholding:  In the event that any federal,  state, or local income
taxes,  employment  taxes,  Federal  Insurance  Contributions  Act  ("F.I.C.A.")
withholdings  or other  amounts are required by applicable  law or  governmental
regulation to be withheld from the Option holder's salary in connection with the
exercise of an Option,  the Option  holder shall advance in cash to the Company,
or to any Affiliate of the Company which employs or employed the Option  holder,
the amount of such  withholdings  unless a  different  withholding  arrangement,
including the use of shares of the Company's  Common Stock, is authorized by the
Committee  (and  permitted  by law),  provided,  however,  that with  respect to
persons subject to Section 16 of the 1934 Act, any such withholding  arrangement
shall be in compliance with any applicable  provisions of Rule 16b-3 promulgated
under Section 16 of the 1934 Act. For purposes hereof,  the fair market value of
the shares withheld for purposes of payroll  withholding  shall be determined in
the manner  provided in Section V.A.  above,  as of the most recent  practicable
date  prior to the date of  exercise.  If the fair  market  value of the  shares
withheld is less than the amount of payroll  withholdings  required,  the Option
holder may be required to advance the  difference  in cash to the Company or the
Affiliate employer.

     N. Reload  Options:  Concurrently  with the award of Options  under the
Plan, the Committee may authorize reload options ("Reload  Options") to purchase
for cash or shares a number of shares  of  Common  Stock.  The  number of Reload
Options  shall  equal (i) the number of shares of Common  Stock used to exercise
the underlying  Options and (ii) to the extent authorized by the Committee,  the
number of shares of Common Stock used to satisfy any tax withholding requirement
incident to the exercise of the underlying Options. The grant of a Reload Option
will become effective upon the exercise of underlying  Options or Reload Options
through the use of shares of Common  Stock held by the  optionee  for at least 6
months. Reload Options must be evidenced in Option agreements.
The Option price per share of Common Stock

<PAGE>

deliverable  upon  the  exercise  of a Reload  Option  shall  be  determined  in
accordance with Paragraph V.A. hereof on the date the grant of the Reload Option
becomes  effective.  The  term of each  Reload  Option  shall  be  equal  to the
remaining  option term of the underlying  Option.  No additional  Reload Options
shall be granted to Option  holders  when  Options  and/or  Reload  Options  are
exercised pursuant to the terms of this Plan following termination of the Option
holder's  employment or on account of death or total and  permanent  disability.
All other provisions of this Plan with respect to Options shall apply equally to
Reload Options.

     O. Other provisions:  The Option  agreements  authorized under the Plan
shall  be  subject  to such  other  terms  and  conditions,  including,  without
limitation, restrictions upon the exercise of the Option, as the Committee shall
deem advisable.  Any such Option  agreement  shall contain such  limitations and
restrictions upon the exercise of the Option as shall be necessary in order that
such Option can be an "incentive stock option" within the meaning of the Section
442 of the Code.

VI.  Purchase for Investment

     If, and to the extent  that,  the  issuance  of Shares  pursuant to the
exercise of Options is deemed by the Company to be subject to the United  States
Securities Act of 1933, as now in force or hereafter  amended,  ("1993 Act"), or
to the securities laws of any other jurisdiction,  the Company shall be under no
obligation  to issue the Shares  covered by such  exercise  unless the person or
persons who  exercises or who exercise  such Option shall make such  warranty as
may be required by any applicable securities law of any applicable  jurisdiction
and shall, in the case of the  applicability  of the 1933 Act, in the absence of
an effective registration under such Act with respect to such Shares, warrant to
the Company, at the time of such exercise,  that such person is or that they are
acquiring  the Shares to be issued to such  person or to them,  pursuant to such
exercise of the Option,  for  investment  and not with a view to, or for sale in
connection  with, the  distribution  of any such Shares;  and in such events the
person or persons  acquiring  such Shares shall be bound by the  provisions of a
legend endorsed upon any share  certificates  expressing the requirements of any
applicable non-United States securities law, or, in cases deemed governed by the
1933 Act substantially  the following  legend,  which shall be endorsed upon the
certificate or certificates evidencing the Shares issued by the Company pursuant
to such exercise:

     "The shares have not been  registered  under the  securitieslaws of any
     country  including  the UnitedStates Securities Act of 1933, as amended,and
     the Company may refuse to  permit  the sale or  transfer  of all or any of
     the shares  until (1) the  Company  has  received  an  opinion  of Counsel
     satisfactory to the Company that any such transfer is exempt from
     registration under all applicable  securities laws or (2) in the case of
     sales or  transfer  to which the  United States  Securities  Act  of  1933
     is applicable, unless a registration  statement  with  respect to such
     shares shall be effective under such Act, as amended."

     Without limiting the generality of the foregoing, the Company may delay
issuance  of the  Shares  until  completion  of any action or  obtaining  of any
consent which the Company deems  necessary  under any applicable law (including,
without limitation, state securities or "blue sky" laws).

VII. Adjustments upon Changes in Capitalization

     In the event that the outstanding  Common Stock, $.01 par value, of the
Company is changed into or exchanged for a different number or kind of shares or
other  securities  of the  Company  or of another  corporation  by reason of any
reorganization,  merger,  consolidation,   recapitalization,   reclassification,
change in par value,  stock split-up,  combination of shares or dividend payable
in  capital  stock,  or the like,  appropriate  adjustment  shall be made in the
number and kind of Shares for the purchase of which Options may be granted under
the Plan, and, in addition,  appropriate  adjustment shall be made in the number
and kind of Shares and in the  Option  price per share  subject  to  outstanding
Options so that each  Option  holder  shall be in a position  equivalent  to the
position the Option  holder would have been in had the Option  holder  exercised
the Options  immediately prior to the applicable event. No such adjustment shall
be made which shall,  within the meaning of Section 424 of the Code,  constitute
such a  modification,  extension  or  renewal of any Option as to cause it to be
considered as the grant of a new Option.

VIII.     Dissolution or Liquidation of the Company

         Upon the  dissolution  or  liquidation  of the  company  other  than in
connection with a transaction to which the preceding  Article VII is applicable,
all  Options  granted  hereunder  shall  terminate  and  become  null and  void;
provided,  however,  that if the rights of a  Participant  or the  Participant's
Survivors hereunder have not otherwise  terminated and expired,  the Participant
or the Participant's Survivors shall have the right

<PAGE>

immediately  prior to such  dissolution  or  liquidation  to exercise any Option
granted hereunder to the extent that the right to purchase Shares thereunder has
accrued as of the date of  exercise  immediately  prior to such  dissolution  or
liquidation.

IX.  Termination of the Plan

     The  Plan  shall  terminate  on  December  31,  2002.  The  Plan may be
terminated at an earlier date by vote of the  Shareholders;  provided,  however,
that  expiration  or any such  earlier  termination  shall not affect any Option
granted or Option agreements  executed prior to expiration or the effective date
of such termination.

X.   Amendment of the Plan

     The Plan may be  amended  by  action of the  Committee  or the Board of
Directors of the Company; provided,  however, that if the scope of any amendment
is such as to require shareholder  approval in order to preserve incentive stock
option treatment,  then such amendments shall also require approval,  within one
(1) year before or after the adoption thereof, by the shareholders, and provided
further  that if the scope of any  amendment  is such as to require  shareholder
approval  in order to comply  with  Rule  16b-3  under  the 1934 Act,  then such
amendment shall also require approval by the  shareholders.  Any amendment shall
not affect any Options theretofore granted and any Option agreements theretofore
executed by the Company and a Participant, unless such amendment shall expressly
so provide.  No amendment shall adversely affect any Participant with respect to
an outstanding Option without the written consent of such Participant.  With the
consent of the Option holder  affected,  the Committee may amend any outstanding
Option agreement in a manner not inconsistent with the plan, including,  without
limitation, to accelerate the date of exercise of any installment of any Option.

XI.  Employment Relationship

     Nothing herein  contained  shall be deemed to prevent the Company or an
Affiliate from  terminating  the  employment of a Participant,  nor to prevent a
Participant from terminating the Participant's employment with the Company or an
Affiliate.

XII. Effective Date

     This Plan first became effective as of January 8, 1982,  subject to the
approval,  within one (1) year after such adoption,  of the  shareholders of the
Company.


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<MULTIPLIER>                                   1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                         DEC-31-1998
<PERIOD-START>                            JAN-01-1998
<PERIOD-END>                              JUN-30-1998
<CASH>                                         71,839
<SECURITIES>                                  388,775
<RECEIVABLES>                                  87,268
<ALLOWANCES>                                    1,645
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                               0
                                         0
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<INCOME-PRETAX>                                90,662
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