IMCLONE SYSTEMS INC/DE
10-Q, 1997-08-13
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM 10-Q

              [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                  OF THE SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended June 30, 1997

              [ ] 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 0-19612

                          IMCLONE SYSTEMS INCORPORATED
             (Exact name of registrant as specified in its charter)

            DELAWARE                                       04-2834797
  (State or other jurisdiction                 (IRS Employer Identification No.)
of incorporation or organization)             

    180 VARICK STREET, NEW YORK, NY                            10014
(Address of principal executive offices)                    (Zip Code)

                                 (212) 645-1405
               Registrant's telephone number, including area code

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

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_____

Applicable only to corporate issuers:

Indicate the number of shares outstanding of each of the registrant's classes of
common stock, as of the latest practicable date.

          Class                                Outstanding as of August 12, 1997
          -----                                ---------------------------------
Common Stock, par value $.001                           24,105,055 Shares

<PAGE>

                          IMCLONE SYSTEMS INCORPORATED

                                      INDEX

                                                                        Page No.
                                                                        --------
PART I - FINANCIAL INFORMATION

      Item 1.    Financial Statements                                 

                 Balance Sheets - June 30, 1997 (unaudited)
                 and December 31, 1996                                      1
                                                                           
                 Unaudited Statements of Operations - Three and six        
                 months ended June 30, 1997 and 1996                        2
                                                                           
                 Unaudited Statements of Cash Flows - Six                  
                 months ended June 30, 1997 and 1996                        3
                                                                           
                 Notes to Financial Statements                              4
                                                                           
      Item 2.    Management's Discussion and Analysis of                   
                 Financial Condition and Results of Operations              5
                                                                           
PART II - OTHER INFORMATION                                                
                                                                           
      Item 4.    Submission of Matters to a Vote of Security Holders       11
                                                                           
      Item 6.    Exhibits and Reports on Form 8-K                          12
                                                                          
<PAGE>

Part 1 - FINANCIAL INFORMATION
Item 1 - Financial Statements

                          IMCLONE SYSTEMS INCORPORATED
                                 Balance Sheets
                        (in thousands, except share data)


                                                         June 30,   December 31,
                      Assets                               1997         1996 
                                                        ----------  ------------
                                                        (unaudited)
Current assets:
  Cash and cash equivalents ........................   $   2,559      $   2,734
  Securities available for sale ....................      28,532         10,780
  Prepaid expenses .................................         450            122
  Other current assets .............................       1,294            479
                                                       ---------      ---------
         Total current assets ......................      32,835         14,115
                                                       ---------      ---------
Property and equipment:
   Land ............................................         340            340
   Building and building improvements ..............       8,969          8,969
   Leasehold improvements ..........................       4,832          4,832
   Machinery and equipment .........................       5,576          5,159
   Furniture and fixtures ..........................         536            536
   Construction in progress ........................         627            320
                                                       ---------      ---------
         Total cost ................................      20,880         20,156
    Less accumulated depreciation and amortization .     (10,418)        (9,606)
                                                       ---------      ---------
         Property and equipment, net ...............      10,462         10,550
                                                       ---------      ---------
Patent costs, net ..................................       1,048            977
Deferred financing costs, net ......................          60             65
Amount due from officer and stockholder ............          90            101
Other assets .......................................          85             77
                                                       ---------      ---------
                                                       $  44,580      $  25,885
                                                       =========      =========
         Liabilities and Stockholders' Equity

Current liabilities:
  Accounts payable .................................   $   1,384      $   1,059
  Accrued expenses and other .......................         731          1,366
  Interest payable .................................         191            238
  Deferred revenue .................................         208           --
  Current portion of long-term liabilities .........       3,380          3,858
                                                       ---------      ---------
         Total current liabilities .................       5,894          6,521
                                                       ---------      ---------
Long-term debt .....................................       2,200          2,200
Other long-term liabilities, less current portion ..         435            575
                                                       ---------      ---------
         Total liabilities .........................       8,529          9,296
                                                       ---------      ---------
Commitments and contingencies

Stockholders' equity:
  Preferred stock, $1.00 par value;
    authorized 4,000,000 shares;
    none issued and outstanding ....................        --             --
Common stock, $.001 par value;
    authorized 45,000,000 shares;
    issued 24,138,872 and 20,248,122 at
    June 30, 1997 and December 31, 1996,
    respectively; outstanding 24,088,055 and
    20,233,699 at June 30, 1997 and
    December 31, 1996, respectively ................          24             20
Additional paid-in capital .........................     145,912        118,760
Accumulated deficit ................................    (109,364)      (101,973)
Treasury stock, at cost; 50,817 and 14,423 shares
    at June 30, 1997 and December 31, 1996,
    respectively ...................................        (492)          (169)
Unrealized loss on securities available for sale ...         (29)           (49)
                                                       ---------      ---------
         Total stockholders' equity ................      36,051         16,589
                                                       ---------      ---------
                                                       $  44,580      $  25,885
                                                       =========      =========

                 See accompanying notes to financial statements.


                                     Page 1

<PAGE>

                          IMCLONE SYSTEMS INCORPORATED
                            Statements of Operations
                      (in thousands, except per share data)
                                   (unaudited)

<TABLE>
<CAPTION>
                                                          Three Months Ended       Six Months Ended
                                                               June 30,                June 30,
                                                         --------------------    --------------------
                                                            1997        1996        1997        1996
                                                         --------    --------    --------    --------
<S>                                                      <C>         <C>         <C>         <C>   
Revenues:
   Product development milestone revenues ............   $  2,500    $   --      $  2,500    $   --
   Research and development funding from third
        parties and other ............................        696          75         771         150
                                                         --------    --------    --------    --------
                 Total revenues ......................      3,196          75       3,271         150
                                                         --------    --------    --------    --------
Operating expenses:
   Research and development ..........................      3,257       2,593       8,652       4,918
   General and administrative ........................      1,272         845       2,355       1,587
                                                         --------    --------    --------    --------
                Total operating expenses .............      4,529       3,438      11,007       6,505
                                                         --------    --------    --------    --------
Operating loss .......................................     (1,333)     (3,363)     (7,736)     (6,355)
                                                         --------    --------    --------    --------
Other (income) expense:
   Interest and other income .........................       (440)       (261)       (685)       (454)
   Interest and other expense ........................        145         200         340         547
                                                         --------    --------    --------    --------
               Net interest and other (income) expense       (295)        (61)       (345)         93
                                                         --------    --------    --------    --------

Net loss before extraordinary item ...................     (1,038)     (3,302)     (7,391)     (6,448)

Extraordinary loss on extinguishment of debt .........       --         1,267        --         1,267
                                                         --------    --------    --------    --------
Net loss .............................................   $ (1,038)   $ (4,569)   $ (7,391)   $ (7,715)
                                                         ========    ========    ========    ========
Net loss per common share:
     Loss before extraordinary loss on
       extinguishment of debt ........................   $  (0.04)   $  (0.17)   $  (0.33)   $  (0.34)

     Extraordinary loss on extinguishment of debt ....       --         (0.06)       --         (0.07)

                                                         --------    --------    --------    --------
               Net loss per common share .............   $  (0.04)   $  (0.23)   $  (0.33)   $  (0.41)
                                                         ========    ========    ========    ========

Weighted average shares outstanding ..................     24,033      19,595      22,702      18,730
                                                         ========    ========    ========    ========
</TABLE>


                 See accompanying notes to financial statements.


                                     Page 2

<PAGE>

                          IMCLONE SYSTEMS INCORPORATED
                            Statements of Cash Flows
                                 (in thousands)
                                   (unaudited)

<TABLE>
<CAPTION>
                                                                                 Six Months Ended
                                                                                     June 30,
                                                                               --------------------
                                                                                 1997        1996
                                                                               --------    --------
<S>                                                                            <C>         <C>      
Cash flows from operating activities:
 Net loss ..................................................................   $ (7,391)   $ (7,715)
 Adjustments to reconcile net loss to net cash used in operating activities:
   Extraordinary loss on extinguishment of debt ............................       --         1,267
   Depreciation and amortization ...........................................        866         910
   Discounted interest amortization ........................................       --           156
   Expense associated with issuance
       of options and warrants .............................................      2,634        --
   Loss on sale of investments .............................................          3        --
   Changes in:
      Prepaid expenses .....................................................       (328)       (145)
      Other current assets .................................................       (815)       (285)
      Due from officer .....................................................         11          13
      Other assets .........................................................         (8)       --
      Interest payable .....................................................        (47)       (111)
      Accounts payable .....................................................        325         (75)
      Accrued expenses and other ...........................................       (635)       (251)
      Deferred revenue .....................................................        208        --
                                                                               --------    -------- 
             Net cash used in operating activities .........................     (5,177)     (6,236)
                                                                               --------    -------- 

Cash flows from investing activities:
   Acquisitions of property and equipment ..................................       (436)       (294)
   Purchases of securities available for sale ..............................    (54,777)    (25,635)
   Sales of securities available for sale ..................................     37,042       7,047
   Additions to patents ....................................................       (120)        (44)
                                                                               --------    -------- 
             Net cash used in investing activities .........................    (18,291)    (18,926)
                                                                               ========    ========

Cash flows from financing activities:
   Net proceeds from issuance of common stock ..............................     23,162      13,560
   Proceeds from exercise of stock options and warrants ....................      1,360       1,831
   Purchase of treasury stock ..............................................       (323)        (19)
   Payments of other liabilities ...........................................       (906)        (29)
                                                                               --------    --------
             Net cash provided by financing activities .....................     23,293      15,343
                                                                               --------    --------


Net decrease in cash and cash equivalents ..................................       (175)     (9,819)

Cash and cash equivalents at beginning of period ...........................      2,734      10,207
                                                                               --------    --------
Cash and cash equivalents at end of period .................................   $  2,559    $    388
                                                                               ========    ========
</TABLE>

                 See accompanying notes to financial statements.


                                     Page 3
<PAGE>

                          IMCLONE SYSTEMS INCORPORATED
                          NOTES TO FINANCIAL STATEMENTS
                                   (unaudited)

(1) Basis of Presentation

     The financial statements of ImClone Systems Incorporated (the "Company") as
of June 30,  1997 and for the three and six months  ended June 30, 1997 and 1996
are  unaudited.  In  the  opinion  of  management,   these  unaudited  financial
statements  include  all  adjustments,   consisting  only  of  normal  recurring
adjustments,  necessary  for a fair  presentation.  These  financial  statements
should be read in  conjunction  with the financial  statements and notes thereto
included in the Company's Annual Report on Form 10-K for the year ended December
31,  1996,  as  filed  with  the   Securities  and  Exchange   Commission   (the
"Commission").

     Results for the interim periods are not  necessarily  indicative of results
for the full years.

(2) Related Party Transactions

     As of June 30, 1997, a promissory note (the "new  promissory  note") in the
original  principal amount of $110,000 given to the Company by its President and
CEO totaled  $90,000.  The new promissory  note replaces an original  promissory
note (the  "original  promissory  note")  which was due upon the  earlier  of on
demand  by the  Company  or April  30,  1997,  bore  interest  at the rate of 8%
compounded  quarterly  and  covered  miscellaneous  cash  advances  made  to the
President  and CEO  through  the date of its  issuance  in March  1995.  The new
promissory  note was  payable as to $15,000 no later than May 15, 1997 and as to
the remainder  upon the earlier of on demand by the Company or December 31, 1997
and bears  interest at the rate of 5% compounded  quarterly.  The new promissory
note covers the  remaining  balance of the original  promissory  note,  interest
thereon and  additional  miscellaneous  cash advances made since the date of the
original note totaling  $15,000.  As of August 12, 1997 the aggregate  amount of
the new promissory note, including interest totaled approximately $88,000.

(3) Net Loss Per Share

     Net loss per share is  computed  based on the  weighted  average  number of
shares outstanding. Common stock equivalents are not included in the computation
of average shares outstanding because they are anti-dilutive.

(4) Reclassification

     Certain amounts  previously  reported have been  reclassified to conform to
current year presentation.


                                     Page 4
<PAGE>

Item 2 - Management's Discussion and Analysis of Financial Condition and Results
         of Operations

     The following discussion and analysis by management is provided to identify
certain  significant factors which affected the Company's financial position and
operating  results  during the period  included  in the  accompanying  financial
statements.

Results of Operations

Six Months Ended June 30, 1997 and 1996

Revenues

     Revenues for the  six-month  periods  ended June 30, 1997 and June 30, 1996
were $3,271,000 and $150,000,  respectively.  Revenues in both periods  included
research and development  support fees of $150,000 from the Company's  corporate
partnership  with the  Wyeth/Lederle  Vaccine division of American Home Products
Corporation  ("American Home") in infectious disease vaccines.  Revenues for the
six-month  period  ended  June 30,  1997  also  included  milestone  revenue  of
$1,500,000 and contract research support of $417,000 from the Company's research
and  license   agreement   with  Merck  KGaA   ("Merck")  in  cancer   vaccines.
Additionally,  the  six-month  period  ended June 30,  1997  included  milestone
revenue of $1,000,000 and royalty fees of $204,000 from the Company's  strategic
alliance with Abbott Laboratories ("Abbott") in diagnostics.

Operating: Research and Development

     Total operating  expenses for the six-month periods ended June 30, 1997 and
June 30,  1996 were  $11,007,000  and  $6,505,000,  respectively.  Research  and
development  expenses for the six-month periods ended June 30, 1997 and June 30,
1996  were  $8,652,000  and  $4,918,000,  respectively.  Such  amounts  for  the
six-month periods ended June 30, 1997 and June 30, 1996 represented 79% and 76%,
respectively,  of total operating expenses.  The $3,734,000 increase in research
and  development  expenses  for the  six-month  period  ended June 30,  1997 was
primarily  attributable to a one-time $2,233,000 non-cash  compensation  expense
recorded in connection with the extension of the term of an officer's warrant to
purchase  397,000  shares of the Company's  common  stock,  $.001 par value (the
"Common  Stock").  The increase is also  attributable  to costs  associated with
additional staffing, contract manufacturing and testing, and expenditures in the
functional  areas  of  product  development,   manufacturing  and  clinical  and
regulatory  affairs to support the manufacture of C225 for human clinical trials
as well as  travel-related  expenses to pursue  strategic  partnerships for C225
(and other product  candidates).  The remaining  increase reflects growth in the
area of discovery research for future product candidates.

General and Administrative

     General and administrative expenses include administrative personnel costs,
costs incurred in connection with pursuing  arrangements with corporate partners
and  technology  licensors,  and expenses  associated  with  applying for patent
protection  for the Company's  technology  and  products.  Such expenses for the
six-month  periods  ended June 30,  1997 and June 30, 1996 were  $2,355,000  and
$1,587,000,  respectively,  an  increase of  $768,000  or 48%.  The  increase in
general and administrative  expenses primarily reflects (i) $279,000 in non-cash
compensation  expense  recorded in connection with an option grant to an officer
and (ii)  additional  staffing  to support  the  expanding  research,  clinical,
development and manufacturing efforts of the Company, particularly with its lead
therapeutic   product   candidate,   C225.  The  Company   expects  general  and
administrative  expenses  to  increase  in future  periods  to  support  planned
increases in research and development.


                                     Page 5

<PAGE>

Interest and Other Income/Expense

     Interest and other income was $685,000 for the six-month  period ended June
30, 1997 compared to $454,000 for the  six-month  period ended June 30, 1996, an
increase of $231,000 or 51%.  The  increase was  primarily  attributable  to the
increased  interest  income  earned from higher cash  balances in the  Company's
investment  portfolio  resulting from the proceeds  received from a public stock
offering  completed in March 1997.  Interest and other  expense was $340,000 and
$547,000  for the  six-month  periods  ended  June 30,  1997 and June 30,  1996,
respectively, a decrease of $207,000 or 38%. Interest and other expense for both
periods primarily  included interest on two outstanding  Industrial  Development
Revenue  Bonds with an aggregate  principal  amount of  $4,313,000  and interest
recorded on the  liability to Pharmacia and UpJohn Inc.  ("Pharmacia"),  for the
reacquisition  of the worldwide  rights to  Interleukin - 6 mutein  ("IL-6m") as
well as clinical material manufactured and supplied by Pharmacia to the Company.
The decrease was  primarily  attributable  to the May 1996  exchange of debt for
Company Common Stock with the Oracle Group and a Company Director.

Net Losses

     The  Company  had net  losses  of  $7,391,000  or $0.33  per  share for the
six-month  period ended June 30, 1997,  compared  with  $7,715,000  or $0.41 per
share for the six-month period ended June 30, 1996. The decrease in the net loss
for the six-month  period ended June 30, 1997 was primarily due to the fact that
the net loss for the six-month  period ended June 30, 1996 included a $1,267,000
or $0.07 per share  extraordinary  loss on early  extinguishment  of debt.  This
extraordinary loss resulted from the issuance of Company Common Stock in lieu of
cash  repayment  of a  $2,500,000  loan  due the  Oracle  Group  and a  $180,000
long-term note owed to a Company Director.

Three Months Ended June 30, 1997 and 1996

Revenues

     Revenues for the three-month  periods ended June 30, 1997 and June 30, 1996
were  $3,196,000 and $75,000,  respectively.  Revenues in both periods  included
research and  development  support fees of $75,000 from the Company's  corporate
partnership with American Home in infectious disease vaccines.  Revenues for the
three-month  period  ended  June 30,  1997 also  included  milestone  revenue of
$1,500,000 and contract research support of $417,000 from the Company's research
and  license  agreement  with  Merck  in  cancer  vaccines.   Additionally,  the
three-month  period ended June 30, 1997 included milestone revenue of $1,000,000
and royalty fees of $204,000 from the Company's  strategic  alliance with Abbott
in diagnostics.

Operating: Research and Development

     Total operating  expenses for the  three-month  periods ended June 30, 1997
and June 30, 1996 were  $4,529,000 and  $3,438,000,  respectively.  Research and
development  expenses for the  three-month  periods ended June 30, 1997 and June
30, 1996 were  $3,257,000  and  $2,593,000,  respectively.  Such amounts for the
three-month  periods ended June 30, 1997 and June 30, 1996  represented  72% and
75%,  respectively,  of total  operating  expenses.  The  $664,000  increase  in
research and development  expenses for the six-month  period ended June 30, 1997
was  primarily  attributable  to  costs  associated  with  additional  staffing,
contract  manufacturing and testing, and expenditures in the functional areas of
product  development,  manufacturing  and  clinical  and  regulatory  affairs to
support  the   manufacture  of  C225  for  human  clinical  trials  as  well  as
travel-related  expenses to pursue  strategic  partnerships  for C225 (and other
product  candidates).  The  remaining  increase  reflects  growth in the area of
discovery research for future product candidates.


                                     Page 6

<PAGE>

General and Administrative

     General and administrative expenses include administrative personnel costs,
costs incurred in connection with pursuing  arrangements with corporate partners
and  technology  licensors,  and expenses  associated  with  applying for patent
protection  for the Company's  technology  and  products.  Such expenses for the
three-month  periods ended June 30, 1997 and June 30, 1996 were  $1,272,000  and
$845,000,  respectively, an increase of $427,000 or 51%. The increase in general
and  administrative   expenses  primarily  reflects  (i)  $150,000  in  non-cash
compensation  expense  recorded in connection with an option grant to an officer
and (ii)  additional  staffing  to support  the  expanding  research,  clinical,
development and manufacturing efforts of the Company, particularly with its lead
therapeutic   product   candidate,   C225.  The  Company   expects  general  and
administrative  expenses  to  increase  in future  periods  to  support  planned
increases in research and development.

Interest and Other Income/Expense

     Interest and other income was  $440,000  for the  three-month  period ended
June 30, 1997  compared to $261,000  for the  three-month  period ended June 30,
1996, an increase of $179,000 or 69%. The increase was primarily attributable to
the increased  interest income earned from higher cash balances in the Company's
investment  portfolio  resulting from the proceeds  received from a public stock
offering  completed in March 1997.  Interest and other  expense was $145,000 and
$200,000  for the  three-month  periods  ended June 30, 1997 and June 30,  1996,
respectively,  a decrease of $55,000 or 28%. Interest and other expense for both
periods primarily  included interest on two outstanding  Industrial  Development
Revenue  Bonds with an aggregate  principal  amount of  $4,313,000  and interest
recorded on the liability to Pharmacia,  for the  reacquisition of the worldwide
rights  to IL-6m as well as  clinical  material  manufactured  and  supplied  by
Pharmacia to the Company.  The decrease was  primarily  attributable  to the May
1996  exchange  of debt for  Company  Common  Stock with the Oracle  Group and a
Company Director.

Net Losses

     The  Company  had net  losses  of  $1,038,000  or $0.04  per  share for the
three-month  period ended June 30, 1997,  compared with  $4,569,000 or $0.23 per
share for the  three-month  period ended June 30, 1996.  The decrease in the net
loss for the  three-month  period ended June 30, 1997 was  primarily  due to the
fact that the net loss for the three-month period ended June 30, 1996 included a
$1,267,000  or $0.06 per share  extraordinary  loss on early  extinguishment  of
debt. This extraordinary loss resulted from the issuance of Company Common Stock
in lieu of cash  repayment  of a  $2,500,000  loan due the  Oracle  Group  and a
$180,000 long-term note owed to a Company Director.


                                     Page 7

<PAGE>

Liquidity and Capital Resources

     The Company's cash and cash  equivalents and securities  available for sale
totaled  $28,950,000 at August 12, 1997; on June 30, 1997 such balances  totaled
$31,091,000. The current balances in the Company's cash and cash equivalents and
securities  available for sale primarily reflects the proceeds received from the
March 1997 public offering of 3,000,000 shares of Common Stock .

     In May 1996,  the Company  extended  its  collaboration  with Merck for the
development  of a  therapeutic  cancer  vaccine,  BEC-2,  for use in  small-cell
carcinoma and in malignant melanoma. The collaboration  continues a research and
license  agreement  between the two companies signed in December 1990. Under the
terms of the modified agreement,  the Company could receive up to $11,700,000 in
license  fees,  research  and  development  support  and  milestone  payments in
addition to moneys  previously  received under the original  agreement.  Of such
$11,700,000,  as of June 30, 1997,  the Company  earned  $1,500,000 in milestone
payments,  and research and support  payments of $417,000  which is the first of
eight quarterly research and support payments totalling  $4,700,000.  In return,
Merck will receive  marketing  rights to BEC-2 for all  therapeutic  indications
outside  North  America.  Formerly the rights of Merck were  confined to Europe,
Australia and New Zealand.  Merck will also share in the  development  costs for
the  United  States  and  Europe  and  will pay all  development  costs in other
territories.  The Company will be entitled to royalties based upon product sales
outside of North America, if any.

     In December 1996,  the Company  signed an agreement with Finova  Technology
Finance, Inc. to finance the lease of laboratory and computer-related  equipment
and make certain  building and leasehold  improvements  to facilities  involving
payments aggregating approximately $2,500,000. At July 31, 1997, the Company had
$1,799,000 available under this agreement.

     In December  1996, the Company and Abbott  modified  their 1992  diagnostic
strategic  alliance  to provide for an  exclusive  sublicensing  agreement  with
Chiron   Diagnostics   ("Chiron")   for  the   Company's   patented  DNA  signal
amplification  technology,  AMPLIPROBE.  Under the terms of the  agreement,  all
sales of Chiron branched DNA diagnostic probe technology in countries covered by
Company  patents will be subject to a royalty to Abbott to be passed  through to
the Company. Royalties on all Chiron sales of AMPLIPROBE are paid on a quarterly
basis by Abbott and recognized upon receipt by the Company.

     In May 1997,  a European  patent was issued for the  Company's  proprietary
Repair Chain Reaction  ("RCR") DNA probe technology which was licensed to Abbott
under the 1992  strategic  alliance  discussed in the preceding  paragraph.  The
issuance of the patent  entitled the Company to receive two  milestone  payments
totaling  $1,000,000 and royalty payments on sales in covered European countries
for products  using the  Company's  RCR  technology.  Abbott will be entitled to
deduct from  royalties  otherwise  due, 25% of such royalties due for a two-year
period and 50%  thereafter  until a total of  $500,000  has been  deducted.  The
$1,000,000 in milestone  payments and $75,000 in royalty payments  covering 1995
and 1996 were received in June 1997.

     The  Company  has  expended  and will  continue  to  expend  in the  future
substantial  funds to continue  the research and  development  of its  products,
conduct   pre-clinical  and  clinical  trials,   establish   clinical-scale  and
commercial-scale  manufacturing  in its own  facilities or in the  facilities of
others,  and  market its  products.  In  addition,  $2,113,000  and  $2,200,000,
respectively,  in  Industrial  Development  Revenue Bonds issued by the New York
Industrial  Development  Agency  ("NYIDA")  on behalf of the Company in 1986 and
1990 become due in  December  1997 and May 2004,  respectively.  The Company has
granted a security interest in substantially  all facility  equipment located in
its New York City facility to secure the obligations of the Company to the NYIDA
relating to the 1986 and 1990 Industrial Development Revenue Bonds.


                                     Page 8

<PAGE>

     In July  1993,  the  Company  entered  into a  termination  agreement  with
Erbamont,  Inc., now a subsidiary of Pharmacia,  to acquire the worldwide rights
to IL-6m,  a blood cell growth  factor,  which had been  licensed  to  Pharmacia
pursuant to a  development  and licensing  agreement.  In  consideration  of the
return of rights and the  transfer  of certain  material  and  information,  the
Company has paid  $1,928,000  and has further  obligations  to  Pharmacia.  Such
obligations, including those to pay for IL-6m material manufactured and supplied
by Pharmacia,  totaled $2,400,000 at March 31, 1996. In addition, the Company is
required to pay Pharmacia $2,700,000 in royalties on eventual sales of IL-6m, if
any.  In March,  1996,  the Company  entered  into a  Repayment  Agreement  with
Pharmacia  (the  "Repayment  Agreement")  pursuant to which it agreed to pay the
$2,400,000  over 24 months  commencing in March 1996, with interest only payable
during  the first six  months.  At August 1, 1997 the  remaining  obligation  to
Pharmacia  totaled  $835,000.  In connection with the Repayment  Agreement,  the
Company signed a Confession of Judgment, which can be filed by Pharmacia with an
appropriate court in the case of default by the Company.  Pursuant to a Security
Agreement  entered into with  Pharmacia,  the Company  pledged its  interests in
patents related to IL-6m and to heparanase to secure its  obligations  under the
Repayment Agreement.

     The Company's future working capital and capital  requirements  will depend
upon numerous  factors,  including  the progress of the  Company's  research and
development  programs,  pre-clinical  testing and clinical trials, the Company's
corporate partners  fulfilling their obligations to the Company,  the timing and
cost of seeking  regulatory  approvals,  the level of resources that the Company
devotes to the development of manufacturing,  marketing and sales  capabilities,
technological advances, the status of competitors and the ability of the Company
to maintain  existing and establish new  collaborative  arrangements  with other
companies to provide funding to the Company to support these activities.

     The  Company  expects to incur  substantial  funding  requirements  for the
expansion of operations,  including (i) the expansion of the clinical  trials of
C225 and the related  manufacturing  program to support these trials and (ii) in
an effort to develop new  product  candidates  the  expansion  of  research  and
development  activities  including among other things,  increased staffing,  the
acquisition  of  equipment,   and  the  consummation  of  new  outside  research
agreements. In addition, the entire $835,000 of outstanding debt to Pharmacia is
payable ratably throughout the period ending February 1998 and $2,113,000 of the
Industrial Development Revenue Bonds issued by the NYIDA becomes due in December
1997.  The Company  expects that its capital  resources,  including  the ongoing
research  support  of its  corporate  partners  will be  sufficient  to fund its
operations for approximately the next two years. However, the receipt of certain
of  such  ongoing  research  support  is  subject  to  attaining   research  and
development  milestones,  certain  of which  have not yet been  achieved.  These
milestones include, but are not limited to, receiving regulatory  permission for
the filing of an Investigational New Drug ("IND") application for the initiation
of a small cell lung carcinoma  clinical trial and reaching  certain  enrollment
levels for such trial relating to the BEC-2 cancer vaccine.  No assurance can be
given that  there will be no change in  projected  research  support  (including
research  and  development  milestones)  or  expenses  that  would  lead  to the
Company's  capital being consumed at a faster rate than currently  expected.  In
order to fund its capital  needs beyond  approximately  the next two years,  the
Company will require  significant  levels of  additional  capital and intends to
raise the necessary  capital  through  additional  arrangements  with  corporate
partners, equity or debt financings or from other sources. There is no assurance
that the Company will be successful in consummating any such  arrangements  with
corporate partners, financings or securing other sources.

         The Company has entered into preliminary discussions with several major
pharmaceutical  companies concerning the funding of research and development for
certain of its products in research.  No assurance can be given that the Company
will be successful in pursuing any such alternatives.  In addition,  the Company
may seek to enter into a significant strategic partnership with a pharmaceutical
company  for  the  development  of its  lead  product  candidate,  C225.  Such a
strategic  alliance could include an up-front  equity  investment and technology
access fees plus milestone fees and revenue  sharing.  There can be no assurance
that the Company will be successful in achieving  such an alliance,  nor can the
Company predict the amount of funds which might be available to it if it entered
into such an alliance or the time at which such funds would be made available.


                                     Page 9

<PAGE>

     The Company has outfitted and purchased equipment for a certain property to
create a  clinical-scale  production  facility  that  complies with current Good
Manufacturing  Practices regulations.  To be successful,  the Company's products
must be  manufactured  in commercial  quantities in compliance  with  regulatory
requirements  and at  acceptable  costs.  Although  the  Company  has  developed
products in the laboratory and in some cases has produced sufficient  quantities
of materials for  pre-clinical  animal trials and early stage  clinical  trials,
production in late stage clinical or commercial  quantities may create technical
challenges for the Company.  If it commercializes its products,  the Company may
adapt this  facility  for use as its  commercial-scale  manufacturing  facility.
However, the Company has limited experience in clinical-scale  manufacturing and
no experience in commercial-scale  manufacturing,  and no assurance can be given
that the Company will be able to make the  transition to late stage  clinical or
commercial  production.  The timing and any  additional  costs of  adapting  the
facility for commercial manufacturing will depend on several factors,  including
the progress of products through clinical trials, and are not yet determinable.

     Total capital  expenditures  made during the six months ended June 30, 1997
were $724,000 of which $567,000  related to the  refurbishment  and equipping of
the  Company's  manufacturing  facility  in New  Jersey and  $157,000  reflected
equipment and  computer-related  purchases for the corporate office and research
laboratories in New York.

Certain Factors Affecting Forward-Looking Statements--Safe Harbor Statement

     Except for the historical  information  contained herein, this Management's
Discussion  and Analysis of Financial  Condition and Results of  Operations  and
other portions of this report contain  forward-looking  statements  that involve
certain risks and uncertainties.  The Company's actual  operations,  performance
and results could differ  materially from those reflected in, or anticipated by,
these forward-looking  statements. In evaluating the Company and its operations,
performance and results,  investors  should  consider,  among other things,  the
scientific and business risks and  uncertainties  of new product  development in
the biotechnology field, the risk of rapid and significant technological change,
the risk of  development  by one or more  competitors  of products which compete
with the Company's  proposed products and the risks and uncertainties  discussed
in the Company's  public  filings with the  Commission,  including the Company's
most  recent  Annual  Report on Form  10-K  under the  captions  "Business"  and
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations."

Recently Issued Accounting Standards

     In February 1997, the Financial Accounting Standards Board issued Statement
of  Financial  Standards  No. 128 (SFAS 128),  "Earnings  Per  Share".  SFAS 128
establishes  standards  for  computing  and  presenting  earnings per share.  In
accordance  with the effective date of SFAS 128, the Company will adopt SFAS 128
as of December  31,  1997.  This  statement  is not  expected to have a material
impact on the Company's financial statements.


                                    Page 10

<PAGE>

PART II - OTHER INFORMATION

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

     (a) An annual meeting of stockholders was held on June 3, 1997 (the "Annual
Meeting").

     (b) The directors  elected at the Annual Meeting were Richard  Barth,  Jean
Carvais,  Vincent T. DeVita,  Jr., Robert F. Goldhammer,  David M. Kies, Paul B.
Kopperl,  William R. Miller, Harlan W. Waksal and Samuel D. Waksal. Such persons
are all of the  directors  of the  Company  whose  term of office as a  director
continued after the Annual Meeting.

     (c) The  matters  voted upon at the Annual  Meeting  and the results of the
voting, including broker non-votes where applicable, are set forth below.

     (i) Election of directors


Name                                In Favor       Withheld     Broker Non-Votes
- ----                                --------       --------     ----------------
Richard Barth                     20,671,171        778,505           N/A
Jean Carvais                      20,671,671        778,005           N/A
Vincent T. DeVita, Jr             20,671,671        778,005           N/A
Robert F. Goldhammer              20,671,671        778,005           N/A
David M. Kies                     20,761,371        778,305           N/A
Paul B. Kopperl                   20,671,571        778,105           N/A
William R. Miller                 20,671,671        778,005           N/A
Harlan W. Waksal                  20,671,571        778,105           N/A
Samuel D. Waksal                  20,671,271        778,405           N/A
                                                                
     (ii) The  stockholders  approved a  proposal  to amend the  Company's  1996
Incentive Stock Option Plan (the "1996 ISO Plan"), generally to (i) increase the
total number of shares of Common  Stock which may be issued  pursuant to options
which may be granted under the 1996 ISO Plan from 1,500,000 to 3,000,000,  which
number  shall be reduced by the number of shares of Common Stock which have been
or  may  be  issued  pursuant  to  options  granted  under  the  Company's  1996
Non-Qualified Stock Option Plan (the "1996 Non-Qualified Plan"); and (ii) change
certain  administration  provisions of the 1996 ISO Plan. The stockholders voted
8,737,903  shares in favor,  4,057,048  shares against,  45,245 shares abstained
from voting and there were 8,609,480 broker non-votes.

     (iii) The  stockholders  approved a proposal  to amend the  Company's  1996
Non-Qualified  Stock Option Plan,  generally to (i) increase the total number of
shares of Common  Stock  which may be issued  pursuant  to options  which may be
granted under the 1996  Non-Qualified  Plan from  1,500,000 to 3,000,000,  which
number  shall be reduced by the number of shares of Common Stock which have been
or may be issued  pursuant  to  options  granted  under the 1996 ISO Plan;  (ii)
change  certain  administration  provisions of the 1996  Non-Qualified  Plan and
(iii) clarify those persons  eligible to participate  in the 1996  Non-Qualified
Plan.  The  stockholders  voted  8,975,273  shares  in favor,  3,819,798  shares
against,  45,125 shares  abstained from voting and there were  8,609,480  broker
non-votes.

     (iv)  The   stockholders   approved  a  proposal  to  amend  the  Company's
Certificate  of  Incorporation  to increase the total number of shares of Common
Stock the Company is  authorized to issue from  30,000,000  shares to 45,000,000
shares.  The  stockholders  voted  19,145,871  shares in favor,  915,585  shares
against,  33,875 shares  abstained from voting and there were  1,354,345  broker
non-votes.

     (v) The stockholders  ratified the appointment by the Board of Directors of
KPMG Peat Marwick LLP as the Company's  independent certified public accountants
for the fiscal year ending December 31, 1997. The stockholders  voted 21,310,356
shares in favor,  112,160  shares  against,  and 27,160  shares  abstained  from
voting. Broker non-votes were not applicable.


                                    Page 11

<PAGE>

Item 6 - Exhibits and Reports on Form 8-K

     (a) Exhibits (numbered in accordance with Item 601 of Regulation S-K)

        Exhibit No.                        Description
        -----------                        -----------
            3.1         Certificate of Incorporation and all amendments thereto
           27.1         Financial Data Schedule
           99.1         1996 Incentive Stock Option Plan, as amended
           99.3         1996 Non-Qualified Stock Option Plan, as amended
               
     (b) Reports on Form 8-K:

        Date of Report                     Items Reported
        --------------                     --------------
         April 14, 1997                        Item 5
         June 3, 1997                          Item 5


                                    Page 12

<PAGE>

                                   SIGNATURES

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



                                                    IMCLONE SYSTEMS INCORPORATED
                                                    (Registrant)

Date:  August 13, 1997                           By  /s/ Samuel D. Waksal
                                                     ---------------------------
                                                     Samuel D. Waksal
                                                     President and Chief 
                                                     Executive Officer
                                         
Date: August 13, 1997                            By  /s/ Carl S. Goldfischer
                                                     ---------------------------
                                                     Carl S. Goldfischer
                                                     Vice President , Finance 
                                                     and Chief Financial Officer
                                     

                                     Page 13


                                                                     Exhibit 3.1

                          CERTIFICATE OF INCORPORATION
                                       OF
                          IMCLONE SYSTEMS INCORPORATED

     I, H. Kenneth Fish, the incorporator hereinafter named, for the purpose of
forming a corporation pursuant to the General Corporation Law of the State of
Delaware, do make this certificate, hereby declaring and certifying that this is
my act and deed and that the facts herein stated are true;

     FIRST: The name of the corporation (the "Corporation") is IMCLONE SYSTEMS
INCORPORATED.

     SECOND: The address of the registered office of the Corporation in the
State of Delaware is 100 West 10th Street, Wilmington, County of New Castle; and
the name of its registered agent at such address is The Corporation Trust
Company.

     THIRD: The purposes of the Corporation are to engage in research and
development, production, manufacturing and distribution of products based on
genetic engineering, including but not limited to such products based on
recombinant DNA techniques and monoclonal antibody techniques of production and
to provide consulting and other services as related to the foregoing business.

     To acquire, hold, dispose of, buy, sell, underwrite, handle on commission
and otherwise deal in stocks, shares, bonds, notes and obligations of the
interests in corporations, joint-stock companies, trusts, associations, firms or
persons and all forms of public and municipal securities of this or any other
country, or any right or interest therein, and while owner thereof, to exercise
all rights, powers and privileges of ownership in the same manner and to the
same extent that an individual might;

     To acquire, hold, use, dispose of buildings, plants, factories, mills,
machinery, works and all other real and personal property, tangible or
intangible, of whatever kind and wherever situated, or any right or interest
therein for the purposes of the foregoing businesses; patent rights and
privileges, inventions, formulae, trademarks and names, secret processes or any
right or interest therein; as a going business or otherwise, all or any part of
the assets of any corporation,


<PAGE>

joint-stock company, trust, association, firm or person, and in such cases to
assume all or any part of its or his liabilities.

     To conduct any other lawful act or activity for which corporations may be
organized under the General Corporation Law of Delaware.

     FOURTH: The total number of shares of capital stock which the Corporation
shall have authority to issue is one million (1,000,000) shares of common stock
with a par value of five cents ($0.05) per share.

     FIFTH: The name and the mailing address of the incorporator is as follows:

                  NAME         MAILING ADDRESS
                  ----         ---------------

          H. Kenneth Fish      Foley, Hoag & Eliot
                               One Post Office Square
                               Boston, Massachusetts 02109

     SIXTH: The names and the mailing addresses of the initial directors are as
follows:

          Harlan Waxsel        101 West 81st Street
                               Unit 712
                               New York, New York

          Jack Waxsel          260 Hornwood Drive
                               Dayton, Ohio 45405

          Salvatore Vernace    Pomona Professional Plaza
                               Route 45
                               Pomona, New York 10970

     SEVENTH: The original by-laws of the Corporation shall be adopted by the
incorporator Thereafter, the power to make, alter, or repeal the by-laws, and to
adopt any new by-law, shall be vested in the board of directors of the
Corporation.

     EIGHTH: Elections of directors need not be by written ballot unless the
by-laws of the corporation shall so provide.

<PAGE>

     NINTH: Each person who at any time is, or shall have been, a director or
officer of the Corporation, and is threatened to be or is made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative, by reason of the fact that he is, or
was, a director or officer of the Corporation, or served at the request of the
Corporation as a director, officer, employee, trustee, or agent of another
corporation, partnership, joint venture, trust or other enterprise, shall be
indemnified against expenses (including attorneys' fees), judgments, fines and
amounts paid in settlement actually and reasonably incurred by him in connection
with any such action, suit or proceeding to the full extent provided by the
General Corporation Law of the State of Delaware. The foregoing Jack Waxsel
right of indemnification shall in no way be exclusive of any other rights of
indemnification to which any such director, officer, employee, or agent may be
entitled, under any by-law, agreement, vote of stockholders or disinterested
directors or otherwise.

     TENTH: Whenever a compromise or arrangement is proposed between this
Corporation and its creditors or any class of them and/or between this
Corporation and its stockholders or any class of them, any court of equitable
jurisdiction within the State of Delaware may, on the application in a summary
way of this Corporation or of any creditor or stockholder thereof, or on the
application of any receiver or receivers appointed for this Corporation under
the provisions of Section 291 of Title 8 of the Delaware Code or on the
application of trustees in dissolution or of any receiver or receivers appointed
for this Corporation under the provisions of Section 279 of Title 8 of the
Delaware Code, order a meeting of the creditors or class of creditors, and/or of
the stockholders or class of stockholders of this Corporation, as the case may
be, to be summoned in such manner as said court directs. If a majority in number
representing three-fourths in value of the creditors or class of creditors
and/or of the stockholders or class of stockholders of this Corporation, as the
case may be, agree to any compromise or arrangement and to any reorganization of
this Corporation as consequence of such compromise or arrangement, the said
compromise or arrangement and the said reorganization shall, if sanctioned by
the court to which the said application has been made, be binding on all the
creditors or class of creditors, and/or on all the stockholders or class of
stockholders of this Corporation, as the case may be, and also on this
Corporation.

<PAGE>

     IN WITNESS WHEREOF, I have hereunto set my hand and seal this 24th day of
April, 1984.

[Seal]                                       /s/ H. Kenneth Fish
                                             -----------------------------
                                             H. Kenneth Fish, Incorporator

<PAGE>

               CERTIFICATE OF CORRECTION FILED TO CORRECT A
               CERTAIN ERROR IN THE CERTIFICATE OF INCORPORATION
               OF IMCLONE SYSTEMS INCORPORATED FILED IN THE
               OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON
               APRIL 26, 1984, AND RECORDED IN THE OFFICE OF THE
               RECORDER OF DEEDS FOR NEW CASTLE COUNTY, DELAWARE,
               ON APRIL 26, 1984

     IMCLONE SYSTEMS INCORPORATED, a corporation organized and existing under
and by virtue of the General Corporation Law of the State of Delaware,

     DOES HEREBY CERTIFY:

     1. The name of the corporation is IMCLONE SYSTEMS INCORPORATED.

     2. That a Certificate of Incorporation was filed by the Secretary of State
of Delaware on April 26, 1984 and recorded in the office of the Recorder of
Deeds of New Castle County on April 26, 1984 and that said certificate requires
correction as permitted by subsection (F) of section 103 of The General
Corporation Law of the State of Delaware.

     3. The inaccuracy or defect of said certificate to be corrected is as
follows:

          The surname of two of the initial directors referred to in paragraph
     SIXTH is Waksal rather than Waxsel.

     4. Paragraph SIXTH of the certificate is corrected to read as follows:

     SIXTH: The names and the mailing addresses of the initial directors are as
follows:

          Harlan Waksal                 101 West 81st Street
                                        Unit 712
                                        New York, New York

          Jack Waksal                   260 Hornwood Drive
                                        Dayton, Ohio 45405

          Salvatore Vernace             Pomona Professional Plaza
                                        Route 45
                                        Pomona, New York 10970


<PAGE>

     IN WITNESS WHEREOF, said IMCLONE SYSTEMS INCORPORATED has caused this
certificate to be signed by Jack Waksal and Salvatore Vernace, a majority of its
Directors, 26th day of April, 1984.

                                           IMCLONE SYSTEMS INCORPORATED

                                           /s/ Salvatore Vernace
                                           -------------------------------------
Michael A. Stetl Notary Public
in and for the State of Ohio               /s/ Jack Waksal
                                           -------------------------------------
My Commission expires Dec. 4, 1985
/s/ Michael A. Stetl
- ------------------------------------
5/30/84

<PAGE>

                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION

     ImClone Systems Incorporated, a corporation organized and existing under
and by virtue of the General Corporation Law of the State of Delaware, DOES
HEREBY CERTIFY:

     FIRST: That the Board of Directors of said Corporation, by the unanimous
written consent of its members dated September 13, 1984 filed with the minutes
of the Board, adopted a resolution proposing and declaring advisable the
following amendment to the Certificate of Incorporation of said Corporation:

     RESOLVED, that the Certificate of Incorporation of ImClone Systems
     Incorporated be amended by changing the FOURTH Article so that as amended
     said Article shall be and read as follows: "The total number of shares of
     capital stock which the Corporation shall have authority to issue is two
     million (2,000,000) shares of common stock with a par value of five cents
     ($0.05) per share.

     SECOND: That in lieu of a meeting and vote of stockholders, the
stockholders have given written consent to said amendment in accordance with the
provisions of section 228 of the General Corporation Law of the State of
Delaware and written notice of the adoption of the amendment has been given as
provided in section 228 of the General Corporation Law of the State of Delaware
to every stockholder entitled to such notice.

     THIRD: That the aforesaid amendment was duly adopted in accordance with the
applicable provisions of sections 242 and 228 of the General Corporation Law of
the State of Delaware.

<PAGE>

     IN WITNESS WHEREOF, said ImClone Systems Incorporated has caused this
certificate to be signed by Harlan Waksal, its President, and attested by H.
Kenneth Fish, its Secretary, this 29th day of September, 1984

                                        IMCLONE SYSTEMS INCORPORATED

                                        By /s/ Harlan W. Waksal M.D.
                                        --------------------------------------
                                           Harlan Waksal, its President
ATTEST:

By /s/ H. Kenneth Fish
   --------------------------------
   H. Kenneth Fish, Secretary


<PAGE>

                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION

     ImClone Systems Incorporated, a corporation organized and existing under
and by virtue of the General Corporation Law of the State of Delaware, DOES
HEREBY CERTIFY:

     FIRST: That the Board of Directors of said Corporation, by the unanimous
written consent of its members dated May 20, 1986 filed with the minutes of the
Board, adopted a resolution proposing and declaring advisable the following
amendment to the Certificate of Incorporation of said Corporation.

     RESOLVED, that the Certificate of Incorporation of ImClone Systems
     Incorporated be amended by changing the FOURTH Article so that as amended
     said Article shall be and read as follows: "The total number of shares of
     capital stock which the Corporation shall have authority to issue is seven
     million (7,000,000) shares of common stock with a par value of five cents
     ($0.05) per share."

     SECOND: That in lieu of a meeting and vote of stockholders, the
stockholders have given written consent to said amendment in accordance with the
provisions of section 228 of the General Corporation Law of the State of
Delaware and written notice of the adoption of the amendment has been given as
provided in section 228 of the General Corporation Law of the State of Delaware
to every stockholder entitled to such notice.

     THIRD: That the aforesaid amendment was duly adopted in accordance with the
applicable provisions of sections 242 and 228 of the General Corporation Law of
the State of Delaware.


<PAGE>

     IN WITNESS WHEREOF, said ImClone Systems Incorporated has caused this
certificate to be signed by Harlan Waksal, its President, and attested by John
Landes, its Secretary, this 16th day of June 1986.

                                        IMCLONE SYSTEMS INCORPORATED

                                        By /s/ Harlan W. Waksal M.D.
                                        --------------------------------------
                                           Harlan Waksal, its President

ATTEST.

By /s/ John Landes
- ---------------------------------
   John Landes, Secretary

<PAGE>

                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION
                                       OF
                          IMCLONE SYSTEMS INCORPORATED

     The undersigned hereby certifies that the following amendment to the
Certificate of Incorporation of ImClone Systems Incorporated (the "Corporation")
has been duly adopted in accordance with the provisions of Sections 242 and 228
of the General Corporation Law of Delaware and that, pursuant to said Section
228, written notice of said adoption has been provided to those stockholders of
the Corporation who did not consent in writing to such adoption:

     That the Certificate of Incorporation of the Corporation be, and it hereby
is, amended by addition thereto of a new Article ELEVENTH as follows:

     ELEVENTH: To the maximum extent permitted by the General Corporation Law of
     the State of Delaware, as the same exists or may hereafter be amended, no
     director of this Corporation shall be personally liable to the Corporation
     or to any of its stockholders for monetary damages arising out of such
     director's breach of fiduciary duty as a director of the Corporation.

     IN WITNESS WHEREOF, said ImClone Systems Incorporated has caused this
certificate to be signed by Harlan Waksal, its President, and attested by John
Landes, its Secretary, this 27 day of May, 1987.

                                        
ATTEST:                                 IMCLONE SYSTEMS INCORPORATED


/s/ John B. Landes                      By /s/ Harlan W. Waksal M.D.
- -------------------------               --------------------------------------
John B. Landes, Secretary                  Harlan Waksal, its President

<PAGE>

                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION
                                       OF
                          IMCLONE SYSTEMS INCORPORATED

                           Pursuant to Section 242 of
                      The Delaware General Corporation Law

     We, Harlan W. Waksal, Executive Vice President, and John B. Landes,
Secretary, respectively, of ImClone Systems Incorporated, a corporation
organized and existing under and by virtue of the Delaware General Corporation
Law (the "Corporation"), do hereby certify as follows:

     FIRST: That the Board of Directors of the Corporation duly adopted the
following amendment to the Certificate of Incorporation of the Corporation,
proposing and declaring such amendment to be advisable and directing that such
amendment be submitted to the stockholders of the Corporation for their
approval. The Amendment is that Article NINTH of the Certificate of
Incorporation of the Corporation be amended to read in its entirety as follows:

     "NINTH (a) Each person who was or is made a party or is threatened to be
made a party to or is involved in any action, suit or proceeding, whether civil,
criminal, administrative or investigative (hereinafter a "proceeding"), by
reason of the fact that he or she, or a person of whom he or she is the legal
representative, is or was a director or officer of the Corporation or is or was
serving at the request of the Corporation as a director, officer, employee or
agent of another corporation or of a partnership, joint venture, trust or other
enterprise, including service with respect to employee benefit plans, whether
the basis of such proceeding is alleged action in an official capacity as a
director, officer, employee or agent or in any other capacity while serving as a
director, officer, employee or agent, shall be indemnified and held harmless by
the Corporation to the fullest extent authorized by the Delaware General
Corporation Law, as the same exists or may hereafter be amended, against all
expense, liability and loss (including attorneys' fees, judgments, fines, excise
taxes or penalties under the Employee Retirement Income Security Act and amounts
paid or to be paid in settlement) reasonably incurred or suffered by such person
in connection therewith, and such indemnification shall continue as to a person
who has ceased to be a director, officer, employee or agent and shall inure to
the benefit of his or her heirs, executors and administrators, provided,
however, that, except as provided in paragraph (b) hereof, the Corporation shall
indemnify any such person seeking indemnification in connection with a
proceeding (or part thereof) initiated by such person only if such proceeding
(or part thereof) was authorized by the board of directors of the Corporation.
The right to indemnification conferred in this Article NINTH shall be a contract
right and shall include the


<PAGE>

right to be paid by the Corporation the expenses incurred in defending any such
proceeding in advance of its final disposition; provided, however, that, if the
Delaware General Corporation Law requires, the payment of such expenses incurred
by a director or officer in his or her capacity as a director or officer (and
not in any other capacity as a director or officer, including, without
limitation, service to an employee benefit plan) in advance of the final
disposition of a proceeding, shall be made only upon delivery to the Corporation
of an undertaking, by or on behalf of such director or officer, to repay all
amounts so advanced if it shall ultimately be determined that such director or
officer is not entitled to be indemnified under this Article NINTH or otherwise.
The provisions of this paragraph (a) shall apply to any member of any Committee
appointed by the Board of Directors as fully as though such person shall have
been an officer or director of the Corporation. The Corporation may, by action
of its Board of Directors, provide indemnification to employees and agents of
the Corporation with the same scope and effect as the foregoing indemnification
of directors and officers.

     (b) If a claim under paragraph (a) of this Article is not paid in full by
the Corporation within thirty days after a written claim has been received by
the Corporation, the claimant may at any time thereafter bring suit against the
Corporation to recover the unpaid amount of the claim and, if successful in
whole or in part, the claimant shall be entitled to be paid also the expense of
prosecuting such claim. It shall be a defense to any such action (other than an
action brought to enforce a claim for expenses incurred in defending any
proceeding in advance of its final disposition where the required undertaking,
if any is required, has been tendered to the Corporation) that the claimant has
not met the standards of conduct which make it permissible under the Delaware
General Corporation Law for the Corporation to indemnify the claimant for the
amount claimed, but the burden of proving such defense shall be on the
Corporation. Neither the failure of the Corporation (including its Board of
Directors, independent legal counsel, or its stockholders) to have made a
determination prior to the commencement of such action that indemnification of
the claimant is proper in the circumstances because he or she has met the
applicable standard of conduct set forth in the Delaware General Corporation
Law, nor an actual determination by the Corporation (including its Board of
Directors, independent legal counsel, or its stockholders) that the claimant has
not met such applicable standard of conduct, shall be a defense to the action or
create a presumption that the claimant has not met the applicable standard of
conduct.

     (c) The Corporation may maintain insurance, at its expense, to protect
itself and any director, officer, employee or agent of the Corporation or
another corporation, partnership, joint venture, trust or other enterprise
against any such expense, liability, or loss, whether or not the Corporation
would have the power to indemnify such person against such expense, liability or
loss under the Delaware General Corporation Law.

     (d) The provisions of this Article NINTH shall be in addition to and not in
limitation of any other rights, indemnities, or limitations of liability to
which any director or officer may be entitled, as a matter of law or under any
By-Law, agreement, vote of stockholders or otherwise."

<PAGE>

     SECOND: That a special meeting of the stockholders of said Corporation was
duly called and held, upon notice in accordance with Section 222 of the Delaware
General Corporation Law, at which meeting the necessary number of shares as
required by statute were voted in favor of the Amendment.

     THIRD: That the Amendment set forth in Article FIRST hereof was duly
adopted in accordance with the applicable provisions of Section 242 of the
Delaware General Corporation law.

     IN WITNESS WHEREOF, we have signed this certificate this 28 day of March
1988.

                                             /s/ Harlan W. Waksal
                                             ------------------------------
                                             Harlan W. Waksal
                                             Executive Vice President

Attest

/s/ John B. Landes
- ------------------------
John B Landes
Secretary

<PAGE>

                            CERTIFICATE 0F AMENDMENT
                                       TO
                          CERTIFICATE OF INCORPORATION
                                       OF
                          IMCLONE SYSTEMS INCORPORATED

                under section 242 or the General Corporation law
                            of the State of Delaware


The undersigned, being the Executive Vice President of IMCLONE SYSTEMS
INCORPORATED, a Delaware corporation (the "Corporation") DOES HEREBY CERTIFY as
follows:

     FIRST: The Certificate of Incorporation of the Corporation is hereby
amended by deleting Article FOURTH in its entirety and inserting the following
in lieu thereof:

          "FOURTH: (a) the total number of shares of capital stock which the
Corporation shall have the authority to issue shall be 16,000,000 shares, of
which 15,000,000 shares shall be Common Stock with a par value of one cent
($.0l) per share, and 1,000,000 shares shall be Preferred Stock with a par value
of one dollar ($1.00) per share.

     A statement of the designations of the authorized classes of stock or of
any series thereof, and the voting powers, full or limited, or no voting powers,
preferences and relative, participating, optional or other special rights, and
qualifications, limitations or restrictions thereof, or of the authority of the
Board of Directors to fix by resolution or resolutions such designations and
other terms not fixed by the Certificate of Incorporation, is as follows:

          1. The Board of Directors is authorized, subject to the limitations
     prescribed by law and in accordance with the provisions hereof, to provide
     for the issuance or Preferred Stock in one or more series, from time to
     time and, by filing a certificate of designations pursuant to the General
     Corporation Law, to establish the number of shares to be included in each
     such series, and to fix the designation, voting powers, full or limited, or
     no voting powers, preferences, and relative, participating, optional or
     other special rights, and qualifications, limitations or restrictions of
     the shares of each such series. The authority of the Board or Directors
     with respect to each such series shall include, but not be limited to, the
     determination or fixing of the following:

               (i) The distinctive designation and number of shares comprising
          such series;

<PAGE>

               (ii) The dividend rate of such series, the conditions and time
          upon which such dividends shall be payable, the relation which such
          dividends shall bear to the dividends payable on any other class or
          classes of stock or series thereof, or any other series of the same
          class, and whether such dividends shall be cumulative or
          non-cumulative;

               (iii) The conditions upon which the shares of such series shall
          be subject to redemption by the Corporation and the times, prices and
          other terms and provisions upon which the shares of the series may be
          redeemed;

               (iv) Whether or not the shares of the series shall be subject to
          the operation of a retirement or sinking fund to be applied to the
          purchase or redemption of such shares and, if such retirement or
          sinking fund be established, the annual amount thereof and the terms
          and provisions relative to the operation thereof;

               (v) Whether or not the shares of the series shall be convertible
          into or exchangeable for shares or any other class or classes, with or
          without par value, or of any other series of the same class, and, it
          provision is made for conversion or exchange, the times, prices,
          rates, adjustments, and other terms and conditions of such conversion
          or exchange;

               (vi) Whether or not the shares of the series shall have voting
          rights, in addition to the voting rights provided by law, and, if so,
          subject to the limitation hereinafter set forth, the terms of such
          voting rights;

               (vii) The rights of the shares of the series in the event of
          voluntary or involuntary liquidation, dissolution, or upon the
          distribution of assets of the Corporation;

               (viii) Any other powers, preferences and relative participating,
          optional or other special rights, and qualifications, limitations or
          restrictions thereof, of the shares of such series, as the Board of
          Directors may deem advisable and as shall not be inconsistent with the
          provisions of this Certificate of Incorporation.

     2. The holders of shares of the Preferred Stock of each series shall be
entitled to receive, when and as declared by the Board of Directors, out of
funds legally available for the payment of dividends, dividends at the rates
fixed by the Board of Directors for such series, and no more, before any
dividends, other than dividends payable in Common Stock, shall be declared and
paid, or set apart for payment, on the Common Stock with respect to the same
dividend period.

     3. The holders of shares of the Preferred Stock of each series shall be
entitled upon liquidation or dissolution or upon the distribution of the assets
of the corporation to such preferences as provided in the resolution or
resolutions creating such series of Preferred Stock, and no more, before any
distribution or the assets of the Corporation shall be made to the holders

<PAGE>

of shares of the Common Stock. Whenever the holders of shares of the Preferred
Stock shall have been paid the full amounts to which they shall be entitled, the
holders of shares of the Common Stock shall be entitled to share ratably in all
assets of the corporation remaining.

     4. At all meetings of the stockholders of the corporation, the holders of
shares of the Common Stock shall be entitled to one vote for each share of
Common Stock held by them. Except as otherwise provided by a resolution or
resolutions of the Board of Directors creating any series of Preferred Stock or
by the Delaware General Corporation Law, the holders of shares of the Common
Stock issued and outstanding shall have and possess the exclusive right to
notice of stockholders' meetings and the exclusive power to vote.

     (b) A director shall be fully protected in relying in good faith upon the
books of account of the Corporation or statements prepared by any of its
officials as to the value and amount of the assets, liabilities and/or net
profits of the Corporation, or any other facts pertinent to the existence and
amount of surplus or other funds from which dividends might properly be declared
and paid.

     (c) The Corporation shall be entitled to treat the person in whose name any
share, right or option is registered as the owner thereof, for all purposes, and
shall not be bound to recognize any equitable or other claim to or interest in
such share, right or option on the part of any other person, whether or not the
Corporation shall have notice thereof, save as may be expressly provided by the
laws of the state of Delaware. 

     SECOND: That such amendment was duly adopted by the Board of Directors of
the Corporation and by the Stockholders of the Corporation in accordance with
Section 242 of the General Corporation Law of the State of Delaware.

     IN WITNESS WHEREOF, this Certificate of Amendment to this Certificate of
Incorporation of the Corporation has been signed, and the statements made herein
affirmed as true under the penalties of perjury, this l2th day of June, 1991.


                                             /s/ Harlan W. Waksal
                                             -----------------------------
                                             Harlan W. Waksal
                                             Executive Vice President

ATTEST: /s/ John B. Landes
        --------------------------
        John B. Landes

<PAGE>

                            CERTIFICATE OF AMENDMENT
                                       To
                          CERTIFICATE OF INCORPORATION
                                       0F
                          IMCLONE SYSTEMS INCORPORATED
                Under Section 242 of the General Corporation Law
                            of the State of Delaware

     The undersigned, being the Executive Vice President of IMCLONE SYSTEMS
INCORPORATED, a Delaware corporation (the "Corporation") DOES HEREBY CERTIFY as
follows:

     FIRST: The Certificate of Incorporation of the Corporation is hereby
amended by deleting the first paragraph of Article FOURTH in its entirety and
inserting the following in lieu thereof:

          "FORTH: (a) The total number of shares of capital stock which the
     corporation shall have the authority to issue in thirty million
     (30,000,000) shares or Common Stock with a par Value of one tenth of one
     cent ($.001) per share and four million (4,000,000} shares of Preferred
     Stock with par value of one dollar ($1.00) per share."

     SECOND: The Certificate of Incorporation of the Corporation is further
amended to add a new Article TWELFTH to read as follows;

          "TWELFTH: Each outstanding share of Common Stock, par value $.01 per
     share, is hereby re-classified and changed into one and one-half shares of
     Common Stock, par value $.00l per share, and upon the filing of this
     amendment to the Certificate of Incorporation, each outstanding share of
     Common Stock, par value $.01 per share, shall be split up and converted
     into one and one-half shares of Common Stock, par value $.00l per share."

     THIRD: That such amendment was duly adopted by the Board of Directors of
the Corporation and by the Stockholders of the corporation in accordance with
Section 242 of the General Corporation Law of the State of Delaware.

<PAGE>

     IN WITNESS HEREOF, this Certificate of Amendment to the Certificate of
Incorporation of the Corporation has been signed, and the statements made herein
affirmed as true under the penalties of perjury, this 16th day of' September,
1991.

                                        /s/ Harlan W. Waksal
                                        --------------------------
                                        Harlan W. Waksal,
                                        Executive Vice President

ATTEST: /s/ John B. Landes
        ----------------------------
        John B. Landes, Secretary

<PAGE>

                            CERTIFICATE OF AMENDMENT
                                       TO
                          CERTIFICATE OF INCORPORATION
                                       OF
                          IMCLONE SYSTEMS INCORPORATED

                Under Section 242 of the General Corporation Law
                            of the State of Delaware

The  undersigned,   being  the  Executive  Vice  President  of  IMCLONE  SYSTEMS
INCORPORATED,  a Delaware corporation (the "Corporation") DOES HEREBY CERTIFY as
follows:

     FIRST: The Certificate of Incorporation of the Corporation is hereby
amended so that Article FOURTH (a) shall read in its entirety as follows:

     "FOURTH: (a) The total number of shares of capital stock which the
Corporation shall have the authority to issue is forty-five million (45,000,000)
shares of Common Stock with a par value of one tenth of one cent ($.001) per
share and four million (4,000,000) shares of Preferred Stock with a par value of
one dollar ($1.00) per share."

     SECOND: That such amendment was duly adopted by the Board of Directors of
the Corporation and by the Stockholders of the Corporation in accordance with
Section 242 of the General Corporation Law of the State of Delaware.

     IN WITNESS WHEREOF, this Certificate of Amendment to the Certificate of
Incorporation of the Corporation has been signed, and the statements hereto
affirmed as true under the penalties of perjury, this 18 day of July, 1997.

                                        /s/ Harlan W. Waksal
                                        -------------------------------
                                        Harlan W. Waksal
                                        Executive Vice President


Attest: /s/ John B. Landes
        --------------------------
        John B. Landes




                                                                    Exhibit 99.1

                          IMCLONE SYSTEMS INCORPORATED
                 1996 INCENTIVE STOCK OPTION PLAN, AS AMENDED(1)

                                    ARTICLE 1

                                 Purpose of Plan

     1.1 General Purpose. The purpose of this Incentive Stock Option Plan (the
"Plan") is to promote the interests of ImClone Systems Incorporated, and any
subsidiaries of such company, as from time to time may be formed or acquired
(collectively, the "Company"), by affording key executives and employees an
opportunity to acquire a proprietary interest in the Company pursuant to stock
options issued by the Company, and thus to create in such employees increased
personal interest in its continued success.

     1.2 Statutory Stock Option. Options granted under the Plan are intended to
be "incentive stock options" to which Section 422 of the Internal Revenue Code
of 1986, as amended (the "Code"), applies.

- ----------
(1) This plan was adopted by the Board on February 25, 1996 and approved by the
stockholders on June 3, 1996; it was amended by the Board on April 3, 1997 and
such amendments were ratified by the stockholders on June 3, 1997.


                                       1
<PAGE>

                                   ARTICLE II

                             Shares Subject to Plan

     2.1 Description of Shares. Subject to Article VII hereof, the stock to
which the Plan applies is shares of the Company's common stock, $.001 par value
("Common Stock"), either authorized but unissued or Treasury shares. The number
of shares of Common Stock to be issued or sold pursuant to options granted
hereunder shall not exceed 3,000,000 shares; provided, that such 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 1996
Non-Qualified Stock Option Plan (the "Non-Qualified Plan"), to the same extent
as if such sales had been made or options had been granted pursuant to this
Plan.

     2.2 Restoration of Unpurchased Shares. Any shares subject to an option
granted hereunder or under the Non-Qualified Plan that, for any reason, expires
or is terminated unexercised as to such shares may again be subject to an option
to be granted hereunder.

                                   ARTICLE III

                     Administration; Committees; Amendments

     3.1 Administration.. The Plan shall be administered by any of the
Compensation Committee, the Stock Option Committee (which is a subcommittee of
the Compensation Committee) (collectively, the "Committees") or the Company's
Board of Directors (the "Board"). The Committees shall be comprised of not less
than two persons who shall be appointed by the Board from among the members of
the Board. Members of the Committees shall not be eligible 


                                       2
<PAGE>

to become participants under the Plan while they are members of the Committees
or for a period of three months thereafter.

     3.2 Duration; Removal; Etc. The members of the Committees shall serve at
the pleasure of the Board, which shall have the power at all times to remove
members from the Committees or to add members thereto. Vacancies in the
Committees, however caused, shall be filled by action of the Board.

     3.3 Meetings; Actions of Committees. Each of the Committees and the Board
may select one of its members as its Chairman and shall hold its meetings at
such times and places as it may determine. All decisions or determinations of
each of the Committees and the Board shall be made by the majority vote or
decision of all of its members, whether present at a meeting or not; provided,
however, that any decision or determination reduced to writing and signed by all
of the members shall be as fully effective as if it had been made at a meeting
duly called and held. Each of the Committees and the Board may make such rules
and regulations for the conduct of its business not inconsistent herewith as it
may deem advisable.

     3.4 Interpretation. The interpretation and construction by any of the
Committees or the Board of the provisions of the Plan or of the options granted
hereunder shall be final, unless in the case of the Committees otherwise
determined by the Board. No member of the Board or of the Committees shall be
liable for any action taken or determination made in good faith.

     3.5 Amendments or Discontinuation. The Board may make such amendments,
changes, and additions to the Plan, or may discontinue and terminate the Plan,
as it may deem advisable from time to time; provided, however, that no action
shall affect or impair any options theretofore granted under the Plan, and
provided, further, however, that the affirmative vote of 


                                       3
<PAGE>

the owners of a majority of the outstanding shares of Common Stock present at a
meeting in person or by proxy and entitled to vote at the meeting shall be
necessary to effect any amendment to the Plan which would (a) increase the
number of shares of Common Stock subject to options granted under the Plan, or
(b) authorize the granting of options at a price below the minimum price
established by Section 5.3 hereof.

                                   ARTICLE IV

                  Participants; Maximum Grant; Duration of Plan

     4.1 Eligibility and Participation. Options shall be granted only to persons
("Participants") who at the time of granting are key executives or key employees
of the Company. Subject to the provisions of Section 4.3 hereof, the Committees
or the Board shall determine the key executives and key employees to be granted
options hereunder, the number of shares of Common Stock subject to such options,
the exercise prices of options, the terms thereof and any other provisions not
inconsistent with the Plan.

     4.2 Guidelines for Participation. In selecting Participants and determining
the numbers of shares of Common Stock for which options are to be granted the
Committees or the Board shall consult with officers and directors of the
Company, and shall take into account the duties of the respective employees,
their present and potential contributions to the success of the Company, and
such other factors as any of the Committees or the Board shall deem relevant.

     4.3 Maximum Grant. Notwithstanding anything to the contrary in the Plan,
the aggregate fair market value (determined as of the time the option is
granted) of the Common Stock for which any Participant may be granted options in
any calendar year (under all plans, including the 


                                       4
<PAGE>

Plan, providing for the grant of incentive stock options of the Company and its
parent and subsidiaries) shall not exceed $100,000.

     4.4 Duration of Plan. All options under the Plan shall be granted within
ten years from the date the Plan is adopted, or the date the Plan is approved by
the shareholders of the Company, whichever is earlier.

                                    ARTICLE V

                         Terms and Conditions of Options

     5.1 Individual Stock Option Agreements. All stock options granted pursuant
to the Plan shall be evidenced by stock option agreements ("Stock Option
Agreements"), which need not be identical, between the Company and the
Participant in such form as any of the Committees or the Board shall from time
to time approve, subject to the terms of the Plan.

     5.2 Number of Shares. Each Stock Option Agreement shall state the total
number of shares of Common Stock with respect to which the option is granted,
the terms and conditions of the option, and the exercise price or prices
thereof, it being understood that any of the Committees or the Board shall have
authority to prescribe in any Stock Option Agreement that the option evidenced
thereby may be exercisable in full or in part, as to any number of shares
subject thereto, at any time or from time to time during the term of the option,
or in such installments at such times during said term as any of the Committees
or the Board may determine; provided that no option granted pursuant to the Plan
shall be exercisable after the expiration of ten years from the date such option
is granted. A previously granted incentive stock option shall be treated as
outstanding until it is exercised in full or expires by reason of the lapse 


                                       5
<PAGE>

of time. Except as otherwise provided in any Stock Option Agreement, an option
may be exercised at any time or from time to time during the term of the option
as to any or all full (but no fractional) shares which have become purchasable
under such option. Any of the Committees or the Board shall have the right to
accelerate, in whole or in part, from time to time, conditionally or
unconditionally, the right to exercise any option granted hereunder.

     5.3 Option Price. The price at which the shares of Common Stock subject to
each option granted under this Plan may be purchased (the "option price" or
"exercise price") shall be determined by any of the Committees or the Board,
which shall have authority at the time the option is granted to prescribe in any
Stock Option Agreement that the price per share, with the passage of
pre-determined periods of time, shall increase from the original price to higher
prices, but in no case shall the original exercise price of any option be less
than 100% of the fair market value of such shares on the date the option is
granted, as determined by any of the Committees or the Board in accordance with
applicable Treasury Regulations. Notwithstanding anything contained to the
contrary herein, no option shall be granted to any employee who, at the time the
option is granted, owns more than 10% of the total combined voting power of all
classes of stock of the Company or of its parent or subsidiary unless, at the
time option is granted, the exercise price of the option is at least 110% of the
fair market value of the shares of Common Stock subject to the option and such
option by its terms is not exercisable after the expiration of five years from
the date such option is granted. For purposes of determining the ownership of
stock of the Company, the rules of Section 424(d) of the Code shall be applied.

     5.4 Method of Exercising Option; Full Payment. Subject to Section 6.1 and
6.2 hereof, options granted pursuant to the Plan may be exercised only if the
Participant was, at all 


                                       6
<PAGE>

times during the period beginning on the date the option was granted and ending
on the date of such exercise, an employee of the Company, a parent or subsidiary
of the Company, or a corporation or a parent or subsidiary of such corporation
issuing or assuming a stock option in respect of such option in a transaction to
which Section 424(a) of the Code applies. Options shall be exercised by written
notice to the Company, addressed to the Company at its principal place of
business. Such notice shall state the Participant's election to exercise the
option and the number of shares of Common Stock in respect of which it is being
exercised, and shall be signed by the Participant so exercising the option. Such
notice shall be accompanied by (a) the Stock Option Agreement (which, if not
exercised for all the shares thereto, shall be appropriately endorsed and
returned to the Participant; (b) payment of the full purchase price of such
shares, which payment shall be in cash, by check or in stock of the Company that
has been owned by the participant for at least six months, or notes of the
Company or, as agreed to by the Board, other consideration; and (c) such written
representations and other documents as may be desirable, in the opinion of the
Company's legal counsel, for purposes of compliance with state or Federal
securities or other laws. In the case of payment made in stock of the Company,
the stock shall be valued at its Fair Market Value (as hereinafter defined) on
the last business day prior to the date of exercise. The term "Fair Market
Value" for the Common Stock on any particular date shall mean the last reported
sale price of the Common Stock on the principal market on which the Common Stock
trades on such date or, if no trades of Common Stock are made or reported on
such date, then on the next preceding date on which the Common Stock traded. The
Company shall deliver a certificate or certificates representing shares of
Common Stock purchased pursuant to such notice to the purchaser as soon as
practicable after receipt of such notice, subject 


                                       7
<PAGE>

to Article VIII hereof. Any of the Committees or the Board may amend an already
outstanding Stock Option Agreement to add a provision permitted by clause (b) of
this Section 5.4, and no such amendment, by itself, shall be deemed to
constitute the grant of a new option for purposes of this Plan; provided that
this sentence shall not be determinative of whether any such amendment
constitutes a new grant for purposes of qualification as an Incentive Stock
Option.

     5.5 Rights as a Shareholder. No Participant shall have any rights as a
shareholder with respect to shares of Common Stock subject to an option granted
under the Plan until the date of the issuance to such Participant of stock
certificates in respect of such shares. No adjustment shall be made for
dividends or other rights for which the record date is prior to the date such
stock certificate is issued.

     5.6 Other Provisions. Stock Option Agreements entered into pursuant to the
Plan may contain such other provisions (not inconsistent with the Plan) as any
of the Committees or the Board may deem necessary or desirable, including, but
not limited to, covenants on the part of the Participant not to compete, not to
sell Common Stock obtained from the exercise of options for specified periods of
time, and remedies available to the Company in the event of the breach of any
such covenant.

                                   ARTICLE VI

                   Termination of Employment; Transferability

     6.1 Termination of Employment. Except as otherwise provided in connection
with the grant of any option or the termination of any Participant, the right to
exercise any unexercised


                                       8
<PAGE>

portion of any option granted under the Plan shall terminate immediately upon
termination of the employment relationship between the Participant and the
Company (or its parent or subsidiary, as the case may be), for any reason,
without regard to cause, other than by reason that the Participant dies or
becomes disabled (as defined in the Code). The option may not be exercised
thereafter, and the shares of Common Stock subject to the unexercised portion of
such option may again be subject to new options under the Plan.

     6.2 Death or Disability of Participant. Except as otherwise permitted in
connection with the grant of any option or the death or disability of a
Participant, in the event a Participant dies or is disabled while in the employ
of the Company or of a parent or subsidiary of the Company, any options
theretofore granted to him shall be exercisable only within the next 12 months
immediately succeeding such death or disability and then only in the case of
death (a) by the person or persons to whom the Participant's rights under the
option shall pass by will or the laws of descent and distribution, and, in the
case of disability, by such Participant or his legal representative, and (b) if
and to the extent that he was entitled to exercise the option at the date of his
death.

     6.3 Transferability. Options granted to a Participant under the Plan shall
not be transferable otherwise than by will, by the laws of descent and
distribution, or (if authorized in the applicable Stock Option Agreement)
pursuant to a qualified domestic relations order ("QDRO") as defined by the
Internal Revenue Code of 1986, as amended, or Title I of the Employee Retirement
Income Security Act of 1974, as amended, or the rules thereunder. During the
Participant's lifetime, options shall be exercised only by such Participant,
such Participant's 


                                       9
<PAGE>

guardian or legal representative, or (if authorized in the applicable Stock
Option Agreement) such Participant's transferee pursuant to a QDRO.

                                   ARTICLE VII

                               Capital Adjustments

     7.1 Capital Adjustments. If any change is made in the shares of Common
Stock subject to the Plan or subject to any option granted under the Plan
(through merger, consolidation, reorganization, recapitalization, stock
dividend, split-up, combination of shares, exchange of shares, issuance of
rights to subscribe, or change in capital structure), appropriate adjustments
shall be made by any of the Committees or the Board as to the maximum number of
shares subject to the Plan and the number of shares and price per share subject
to outstanding options as shall be equitable to prevent dilution or enlargement
of option rights; provided, however, that any such adjustment shall comply with
the rules of Section 424(a) of the Code and provided further that in no event
shall any adjustment be made that would cause any option granted hereunder to be
considered other than an incentive stock option. Any determination made by any
of the Committees or the Board under this Article VII shall be final, binding
and conclusive upon each Participant.

                                  ARTICLE VIII

                            Legal Requirements, Etc.

     8.1 Revenue Stamps. The Company shall be responsible and shall pay for any
transfer, revenue, or documentary stamps with respect to shares issued upon the
exercise of options granted under the Plan.


                                       10
<PAGE>

     8.2 Legal Requirements. The Company shall not be required to issue
certificates for shares upon the exercise of any option unless and until, in the
opinion of the Company's legal counsel, such issuance would not result in a
violation of any state or Federal securities or other law. Certificates for
shares, when issued, shall have, if required in the opinion of the Company's
legal counsel, the following legend, or statements of other restrictions,
endorsed thereon, and may not be immediately transferable:

     The shares of Common Stock evidenced by this certificate have been issued
     to the registered owner in reliance upon written representations that these
     shares have been purchased for investment. These shares may not be sold,
     transferred, or assigned unless, in the opinion of the Company and its
     legal counsel, such sales, transfer, or assignment will not be in violation
     of the Securities Act of 1933, as amended, applicable rules and regulations
     of the Securities and Exchange Commission and any applicable state
     Securities laws.

     8.3 Private Offering. The options to be granted under the Plan are
available only to a limited number of present and future key executives and
employees of the Company and its subsidiaries who have knowledge of the
Company's financial condition, management, and affairs. Such options are not
intended to provide additional capital for the Company but are to encourage
stock ownership by the Company's key personnel. By the act of accepting an
option, in the absence of an effective registration statement under the
Securities Act of 1933, as amended, Participants shall agree that upon exercise
of such option, they will acquire the shares of Common Stock that are the
subject thereof for investment and not with any intention at such time to resell
or redistribute the same, and they shall confirm such agreement at the time of
exercise,


                                       11
<PAGE>

but the neglect or failure to confirm the same in writing shall not be a
limitation of such agreement.

                                   ARTICLE IX

                                     General

     9.1 Application of Funds. The proceeds received by the Company from the
sale of shares of Common Stock pursuant to the exercise of options therefor
shall be used for general corporate purposes.

     9.2 Right of the Company to Terminate Employment. Nothing contained in the
Plan or in a Stock Option Agreement shall confer upon any Participant any right
to be continued in the employ of the Company or of any subsidiary of the
Company, or interfere in any way with the right of the Company, or such
subsidiary, to terminate his employment for any reason whatsoever, with or
without cause, at any time.

     9.3 No Obligation to Exercise. The granting of an option hereunder shall
impose no obligation upon the Participant to exercise such option.

     9.4 Effectiveness of Plan. The Plan shall become effective upon its
adoption by the shareholders of the Company. Options may be granted under the
Plan prior to the approval of the Plan by the Shareholders, but no such option
may be exercised prior to such approval.

     9.5 Other Benefits. Participation in the Plan shall not preclude a
Participant from eligibility in any other stock benefit plan of the Company or
any old age benefit, insurance, pension, profit sharing, retirement, bonus or
other plan which the Company has adopted, or may, at any time, adopt for the
benefit of its parents' or its subsidiaries' executives and/or employees.


                                       12
<PAGE>

     9.6 Company Records. Records of the Company as to a Participant's period of
employment, termination of employment and the reason therefor, leaves of
absence, re-employment, and other matters will be conclusive for all purposes
hereunder.

     9.7 Tax Requirement. The exercise or surrender of any option under this
Plan shall constitute a Participant's full and complete consent to whatever
action the Committee elects to satisfy the Federal and state withholding
requirements, if any, which the Committee in its discretion deems applicable to
such exercise.

     9.8 Interpretations and Adjustments. To the extent permitted by law, an
interpretation of the Plan and a decision on any matter within any of the
Committees' or Board's discretion made in good faith is binding on all persons.
A misstatement or other mistake of fact shall be corrected when it becomes
known, and the person responsible shall make such adjustment on account thereof
as he considers equitable and practicable.

     9.9 Information. The Company shall, upon request or as may be specifically
required hereunder, furnish or cause to be furnished, all of the information or
documentation which is necessary or required by any of the Committees or the
Board to perform its duties and functions under the Plan.

     9.10 Notice of Disqualifying Disposition. If a Participant sells or
otherwise disposes of any share of Common Stock transferred to him pursuant to
the exercise of an option granted hereunder within two years from the date of
the granting of the option or within one year of the transfer of such shares to
him (i.e., a "disqualifying disposition"), the Participant, within ten days
thereafter, shall furnish to any of the Committees or the Board at the principal
offices of the Company, written notice of such sale or other disposition.


                                       13
<PAGE>

     9.11 Governing Law. The Plan and any and all options granted thereunder
shall be governed by, and construed and enforced in accordance with, the laws of
the State of New York from time to time in effect.

     9.12 Certain Definitions.

          9.12.1 "Parent". The term "parent" shall mean a "parent corporation"
as defined in Section 424(e) of the Code.

          9.12.2 "Subsidiary". The term "subsidiary" shall mean a "subsidiary
corporation" as defined in Section 424(f) of the Code.

          9.12.3 "Incentive Stock Option". The term "incentive stock option"
shall mean an option described in Section 422(b) of the code.

          9.12.4 "Disabled." The term "disabled" shall have the definition set
forth in Section 22(a)(3) of the Code.


                                       14



                                                                    Exhibit 99.3

                          IMCLONE SYSTEMS INCORPORATED

               1996 NON-QUALIFIED STOCK OPTION PLAN, AS AMENDED(1)

                                    ARTICLE I

                                 Purpose of Plan

     1.1 General Purpose. The purpose of this Non-Qualified Stock Option Plan
(the "Plan") is to promote the interests of ImClone Systems Incorporated (the
"Company") by affording key consultants, advisors, directors and employees an
opportunity to acquire a proprietary interest in the Company pursuant to stock
options issued by the Company, and thus to create in such persons increased
personal interest in its continued success.

     1.2 Statutory Stock Option. Options granted under the Plan are intended to
be "non-qualified" stock options under the Internal Revenue Code of 1986, as
amended (the "Code").

- ----------
(1) This plan was adopted by the Board on February 25, 1996 and approved by the
stockholders on June 3, 1996; it was amended by the Board on April 3, 1997 and
such amendments were ratified by the stockholders on June 3, 1997.


                                       1
<PAGE>

                                   ARTICLE II

                             Shares Subject to Plan

     2.1 Description of Shares. Subject to Article VIII hereof, the stock to
which the Plan applies is shares of the Company's common stock, $.001 par value
("Common Stock"), either authorized but unissued or Treasury shares. The number
of shares of Common Stock to be issued or sold pursuant to options granted
hereunder shall not exceed 3,000,000 shares; provided, that such 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 1996
Incentive Stock Option Plan (the "Incentive Stock Option Plan") to the same
extent as if such sales had been made or options had been granted pursuant to
this Plan.

     2.2 Restoration of Unpurchased Shares. Any shares subject to an option
granted hereunder that, for any reason, expires or is terminated unexercised as
to such shares may again be subject to an option to be granted hereunder.

                                   ARTICLE III

                     Administration; Committees; Amendments

     3.1 Administration. The Plan shall be administered by any of the
Compensation Committee, the Stock Option Committee (which is a subcommittee of
the Compensation Committee) (collectively, the "Committees") or the Board of
Directors of the Company (the "Board"). The Committees shall be comprised of not
less than two persons who shall be appointed by the Board from among the members
of the Board. Members of the Committees and 


                                       2
<PAGE>

the Board shall be eligible to become participants under the Plans and may
receive discretionary and non-discretionary grants of options.

     3.2 Duration; Removal; Etc. The members of the Committees shall serve at
the pleasure of the Board, which shall have the power at all times to remove
members from the Committees or to add members thereto. Vacancies in the
Committees, however caused, shall be filled by action of the Board.

     3.3 Meetings; Actions of Committee. Each of the Committees may select one
of its members as its Chairman and shall hold its meetings at such times and
places as it may determine. All decisions or determinations of the Committees
and the Board shall be made by the majority vote or decision of all of its
members, whether present at a meeting or not; provided, however, that any
decision or determination reduced to writing and signed by all of the members
shall be as fully effective as if this had been made at a meeting duly called
and held. Each of the Committees and the Board may make such rules and
regulations for the conduct of its business not inconsistent herewith as it may
deem advisable.

     3.4 Interpretation. The interpretation and construction by any of the
Committees or the Board of the provisions of the Plan or of the options granted
hereunder shall be final, unless in the case of the Committees otherwise
determined by the Board. No member of the Board or of the Committees shall be
liable for an action taken or determination made in good faith.

     3.5 Amendments or Discontinuation. The Board may make such amendments,
changes, and additions to the Plan, or may discontinue and terminate the Plan,
as it may deem advisable from time to time; provided, however, that no action
shall affect or impair any options theretofore granted under the Plan, and
provided, further, however, that the affirmative vote of 


                                       3
<PAGE>

the owners of a majority of the outstanding shares of Common Stock present at a
meeting in person or by proxy and entitled to vote shall be necessary to effect
any amendment to the Plan which would increase the number of shares of Common
Stock subject to options granted under the Plan.

                                   ARTICLE IV

                  Participants; Maximum Grant; Duration of Plan

     4.1 Eligibility and Participation. Options shall be granted only to persons
("Participants") who at the time of granting are key consultants, advisors,
directors or employees of the Company. Any of the Committees or the Board shall
determine the key consultants, advisors, directors and employees to be granted
options hereunder, the number of shares of Common Stock subject to such options,
the exercise prices of options, the terms thereof and any other provisions not
inconsistent with the Plan.

     4.2 Guidelines for Participation. In selecting Participants and determining
the numbers of shares of Common Stock for which options are to be granted, any
of the Committees or the Board shall consult with officers and directors of the
Company, and shall take into account the duties of the respective persons, their
present and potential contributions to the success of the Company, and such
other factors as any of the Committees or the Board shall deem relevant.

     4.3 Duration of Plan. All options under the Plan shall be granted within
ten years from the date the Plan is approved by the shareholders of the Company.


                                       4
<PAGE>

                                    ARTICLE V

                         Terms and Conditions of Options

     5.1 Individual Stock Option Agreements. All stock options granted pursuant
to the Plan shall be evidenced by stock option agreements ("Stock Option
Agreements"), which need not be identical, between the Company and the
Participant in such form as any of the Committees or the Board shall from time
to time approve, subject to the terms of the Plan.

     5.2 Number of Shares. Each Stock Option Agreement shall state the total
number of shares of Common Stock with respect to which the option is granted,
the terms and conditions of the option, and the exercise price or prices
thereof, it being understood that any of the Committees or the Board shall,
subject to the terms of Article VII hereof, have authority to prescribe in any
Stock Option Agreement that the option evidenced thereby may be exercisable in
full or in part, as to any number of shares subject thereto, at any time or from
time to time during said term as any of the Committees or the Board may
determine; provided that no option granted pursuant to the Plan shall be
exercisable after the expiration of ten years from the date such option is
granted. Except as otherwise provided in any Stock Option Agreement, an option
may be exercised at any time or from time to time during the term of the option
as to any or all full (but no fractional) shares which have become purchasable
under such option. Subject to the terms of Article VII hereof, any of the
Committees or the Board shall have the right to accelerate, in whole or in part,
from time to time, conditionally or unconditionally, the right to exercise any
option granted hereunder.


                                       5
<PAGE>

     5.3 Option Price. Subject to the terms of Article VII hereof, the price at
which the shares of Common Stock subject to each option granted under this Plan
may be purchased (the "option price" or "exercise price") shall be determined by
any of the Committees or the Board, which shall have the authority at the time
the option is granted to prescribe in any Stock Option Agreement that the price
per share, with the passage of pre-determined periods of time, shall increase
from the original price to higher prices.

     5.4 Method of Exercising Option; Full Payment. Subject to the terms of
Article VII hereof and Section 6.1 and Section 6.2 hereof, options granted
pursuant to the Plan may be exercised only if the Participant was, at all times
during the period beginning on the date the option was granted and ending on the
date of such exercise, a key consultant, advisor, director or employee of the
Company. Options shall be exercised by written notice to the Company, addressed
to the Company at its principal place of business. Such notice shall state the
Participant's election to exercise the option and the number of shares of Common
Stock in respect of which it is being exercised, and shall be signed by the
Participant so exercising the option. Such notice shall be accompanied by (a)
the Stock Option Agreement (which, if not exercised for all the shares subject
thereto, shall be appropriately endorsed and returned to the Participant); (b)
payment of the full purchase price of such shares, which payment shall be in
cash, by check or in stock of the Company that has been owned by the Participant
for at least six months, or notes of the Company or, as agreed to by the Board,
other consideration; and such written representations and other documents as may
be desirable, in the opinion of the Company's legal counsel, for purposes of
compliance with state or Federal securities or other laws. In the case of
payment made in stock of the Company, the stock shall be valued at its Fair


                                       6
<PAGE>

Market Value (as hereinafter defined) on the last business day prior to the date
of exercise. The term "Fair Market Value" for the Common Stock on any particular
date shall mean the last reported sale price of the Common Stock on the
principal market on which the Common Stock trades on such date or, if no trades
of Common Stock are made or reported on such date, then on the next preceding
date on which the Common Stock traded. The Company shall deliver a certificate
or certificates representing shares of Common Stock purchased pursuant to such
notice to the purchaser as soon as practicable after receipt of such notice,
subject to Article IX hereof. Any of the Committees or the Board may amend an
already outstanding Stock Option Agreement to add a provision permitted by
clause (b) of this Section 5.4, and no such amendment, by itself, shall be
deemed to constitute the grant of a new option for purposes of this Plan.

     5.5 Rights as a Shareholder. No Participant shall have any rights as a
shareholder with respect to shares of Common Stock subject to an option granted
under the Plan until the date of the issuance to such Participant of a stock
certificate in respect of such shares. No adjustment shall be made for dividends
or other rights for which the record date is prior to the date such stock
certificate is issued.

     5.6 Other Provisions. Stock Option Agreements entered into pursuant to the
Plan may contain such other provisions (not inconsistent with the Plan) as any
of the Committees or the Board may deem necessary or desirable, including, but
not limited to, covenants on the part of the Participant not to compete, not to
sell Common Stock obtained from the exercise of options for specified periods of
time, and remedies available to the Company in the event of the breach of any
such covenant.


                                       7
<PAGE>

                                   ARTICLE VI

                          Termination; Transferability

     6.1 Termination. Except as otherwise provided in connection with the grant
of any option or the termination of any Participant, the right to exercise any
unexercised portion of any option granted under the Plan shall terminate on the
date of termination of the relationship between the Participant and the Company,
for any reason, without regard to cause, other than by reason of death or
disability. The option may not be exercised thereafter, and the shares of Common
Stock subject to the unexercised portion of such option may again be subject to
new options under the Plan. Such restrictions shall not apply to the options
granted pursuant to Article VII which shall be exercisable in accordance with
the terms thereof.

     6.2 Death or Disability of Participant. Except as otherwise permitted in
connection with the grant of any option or the death or disability of a
Participant, in the event a Participant dies or is disabled while he is a
consultant, advisor, director or employee of the Company, any options
theretofore granted to him shall be exercisable only within the next 12 months
immediately succeeding such death or disability and then only (a) in the case of
death, by the person or persons to whom the Participants rights under the option
shall pass by will or the laws of descent and distribution, and in the case of
disability, by such Participant or his legal representative, and (b) if and to
the extent that he was entitled to exercise the option at the date of his death
or disability. Such restrictions shall not apply to the options of Participating
Directors which shall be exercisable in accordance with the terms set forth in
Article VII hereof.


                                       8
<PAGE>

     6.3 Transferability. Options granted to a Participant under the Plan shall
not be transferable otherwise than by will, by the laws of descent and
distribution, or (if authorized in the applicable Stock Option Agreement)
pursuant to a qualified domestic relations order ("QDRO") as defined by the
Internal Revenue Code of 1986, as amended, or Title I of the Employee Retirement
Income Security Act of 1974, as amended, or the rules thereunder. During the
Participant's lifetime, options shall be exercised only by such Participant,
such Participant's guardian or legal representative, or (if authorized in the
applicable Stock Option Agreement) such Participant's transferee pursuant to a
QDRO.

                                   ARTICLE VII

                                Directors' Grants

     7.1 Eligibility. Annually, on February 15 of each of the Company's Fiscal
Years, any Director of the Company who at the time is not a full-time employee
of the Company (a "Participating Director"), shall be granted an option for
2,500 shares of Common Stock. Each person who becomes a Participating Director
after the first day of the Company's fiscal year and within nine months of that
date shall be granted, on the date that person becomes a Participating Director,
an option for a number of shares of Common Stock determined by pro rating the
normal 2,500 share annual amount based on the period of time remaining in the
fiscal year in which such person becomes a Participating Director. No person who
owns 10% or more of the outstanding Common Stock of the Company (including
shares of Common Stock issuable upon exercise of outstanding options and
warrants), shall be granted options under this Article. Options under this
Article are non-discretionary.


                                       9
<PAGE>

     7.2 Options Terms. Options granted under this Article VII shall not be
exercisable until the date upon which the option holder has provided one year of
continuous service as a Participating Director following the date of grant of
such option. Options granted pursuant to this Article shall have an exercise
price equal to the Fair Market Value (as hereinafter defined) of the Common
Stock on the date of the grant. The term "Fair Market Value" for the Common
Stock on any particular date shall mean the last reported sale price of the
Common Stock on the principal market on which the Common Stock trades on such
date or, if no trades of Common Stock are made or reported on such date, then on
the next preceding date on which the Common Stock traded. Notwithstanding any
other provisions of this Plan, options granted under this Article shall remain
exercisable for ten years after the date of grant and the option holder (or his
legal representative or that of his estate) may continue to exercise an option
notwithstanding that the holder ceases to be a Participating Director.

     7.3 Other Provisions. In all other respects, Options granted under this
Article VII shall be subject to the other provisions of the Plan, including but
not limited to those governing method of exercise, exercise payment, tax
withholding, and transferability. Notwithstanding any other provisions of this
Plan, the provisions of this Article VII may not be amended more than once every
six months, other than to comport with changes in the Code.

                                  ARTICLE VIII

                               Capital Adjustments

     8.1 Capital Adjustments. If any change is made in the shares of Common
Stock subject to the Plan or subject to any option granted under the Plan
(through merger, consolidation,


                                       10
<PAGE>

reorganization, recapitalization, stock dividend, split-up, combination of
shares, exchange of shares, issuance of rights to subscribe, or change in
capital structure), appropriate adjustments shall be made by any of the
Committees or the Board as to the maximum number of shares subject to the Plan
and the number of shares and price per share subject to outstanding options as
shall be equitable to prevent dilution or enlargement of option rights. Any
determination made by any of the Committees or the Board under this Article VIII
shall be final, binding and conclusive upon each Participant.

                                   ARTICLE IX

                            Legal Requirements, Etc.

     9.1 Revenue Stamps. The Company shall be responsible and shall pay for any
transfer, revenue, or documentary stamps with respect to shares issued upon the
exercise of options granted under the Plan.

     9.2 Legal Requirements. The Company shall not be required to issue
certificates for shares upon the exercise of any option unless and until, in the
opinion of the Company's legal counsel, such issuance would not result in a
violation of any state or Federal securities or other law. Certificates for
shares, when issued, shall have, if required in the opinion of the Company's
legal counsel, the following legend, or statements of other restrictions,
endorsed thereon, and may not immediately be transferable:

     The shares of Common Stock evidenced by this certificate have been issued
     to the registered owner in reliance upon written representations that these
     shares have been purchased for investment. These shares may not be sold,
     transferred, or assigned unless, in the opinion of the Company and its
     legal counsel, such sale, transfer, or assignment will not be in violation
     of the Securities Act of 1933, as 


                                       11
<PAGE>

     amended, applicable rules and regulations of the Securities and Exchange
     Commission and any applicable state securities laws.

     9.3 Private Offering. The options to be granted under the Plan are
available only to a limited number of present and future key consultants,
advisors, directors and employees of the Company who have knowledge of the
Company's financial condition, management, and affairs. Such options are not
intended to provide additional capital for the Company, but are to encourage
stock ownership by the Company's key personnel. By the act of accepting an
option, in the absence of an effective registration statement under the
Securities Act of 1933, as amended, Participants shall agree that upon exercise
of such option, they will acquire the shares of Common Stock that are the
subject thereof for investment and not with any intention at such time to resell
or redistribute the same, and they shall confirm such agreement at the time of
exercise, but the neglect or failure to confirm the same in writing shall not be
a limitation of such agreement.

                                    ARTICLE X

                                     General

     10.1 Application of Funds. The proceeds received by the Company from the
sale of shares of Common Stock pursuant to the exercise of options therefor
shall be used for general corporate purposes.


                                       12
<PAGE>

     10.2 Right of the Company to Terminate Relationship. Nothing contained in
the Plan or in a Stock Option Agreement shall confer upon any Participant any
right to be continued as a consultant, advisor, director or employee of the
Company, or interfere in any way with the right of the Company to terminate such
relationship for any reason whatsoever, with or without cause, at any time.

     10.3 No Obligation to Exercise. The granting of an option hereunder shall
impose no obligation upon the Participant to exercise such option.

     10.4 Effectiveness of Plan. The Plan shall become effective upon its
adoption by the Board. Options may be granted under the Plan prior to the
approval of the Plan by the Shareholders, but no such option may be exercised
prior to such approval.

     10.5 Other Benefits. Participation in the Plan shall not preclude a
Participant from eligibility in any other stock benefit plan of the Company or
any old age benefit, insurance, pension, profit sharing, retirement, bonus or
other plan which the Company has adopted, or may, at any time, adopt.

     10.6 Tax Requirements. The exercise or surrender of any option under this
Plan shall constitute a Participant's full and complete consent to whatever
action any of the Committees or the Board elect to satisfy the Federal and state
withholding requirements, if any, which the Committee in its discretion deems
applicable to such exercise.

     10.7 Interpretations and Adjustments. To the extent permitted by Law, an
interpretation of the Plan and a decision on any matter within any of the
Committees' or the Board's discretion made in good faith is binding on all
persons. A misstatement or other mistake


                                       13
<PAGE>

of fact shall be corrected when it becomes known, and the person responsible
shall make such adjustment on account thereof as he considers equitable and
practicable.

     10.8 Information. The Company shall, upon request or as may be specifically
required hereunder, furnish or cause to be furnished, all of the information or
documentation which is necessary or required by any of the Committees or the
Board to perform its duties and functions under the Plan.

     10.9 Governing Law. The Plan and any and all options granted thereunder
shall be governed by, and construed and enforced in accordance with, the laws of
the State of New York from time to time in effect.

     10.10 Certain Definitions.

     10.10.1 "Parent". The term "parent" shall mean a "parent corporation" as
defined in Section 424(e) of the Code.

     10.10.2 "Subsidiary". The term "subsidiary" shall mean a "subsidiary
corporation" as defined in Section 424(f) of the Code.

     10.10.3 "Disabled". The term "disabled" shall have the definition set forth
in Section 22(a) (3) of the Code.


                                       14


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     Information taken from the June 30, 1997 Form 10-Q.
</LEGEND>
<MULTIPLIER>                                      1000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                                  DEC-31-1997
<PERIOD-START>                                     APR-01-1997
<PERIOD-END>                                       JUN-30-1997                                                       
<CASH>                                                   2,559
<SECURITIES>                                            28,532 
<RECEIVABLES>                                                0 
<ALLOWANCES>                                                 0 
<INVENTORY>                                                  0 
<CURRENT-ASSETS>                                        32,835 
<PP&E>                                                  20,880 
<DEPRECIATION>                                         (10,418)
<TOTAL-ASSETS>                                          44,580 
<CURRENT-LIABILITIES>                                    3,781 
<BONDS>                                                  4,313 
                                        0 
                                                  0 
<COMMON>                                                    24 
<OTHER-SE>                                              36,027 
<TOTAL-LIABILITY-AND-EQUITY>                            44,580 
<SALES>                                                      0 
<TOTAL-REVENUES>                                         3,196 
<CGS>                                                        0 
<TOTAL-COSTS>                                            4,529 
<OTHER-EXPENSES>                                             0 
<LOSS-PROVISION>                                             0 
<INTEREST-EXPENSE>                                         145 
<INCOME-PRETAX>                                         (1,038)
<INCOME-TAX>                                                 0 
<INCOME-CONTINUING>                                     (1,038)
<DISCONTINUED>                                               0 
<EXTRAORDINARY>                                              0 
<CHANGES>                                                    0 
<NET-INCOME>                                            (1,038)
<EPS-PRIMARY>                                            (0.04)
<EPS-DILUTED>                                                0     
                                                    


</TABLE>


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