IMCLONE SYSTEMS INC/DE
8-K, 1997-02-28
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                   ----------

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


       Date of Report (Date of earliest event reported): February 25, 1997

                          IMCLONE SYSTEMS INCORPORATED
               (Exact Name of Registrant as Specified in Charter)


         Delaware                    0-19612                 04-2834797
State or Other Jurisdiction        (Commission             (IRS Employer
     of Incorporation)             File Number)          Identification No.)

                                              
                  180 Varick Street, New York, New York 10014
              (Address of principal executive offices) (Zip Code)

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


<PAGE>

Item 5. Other Events

   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
       OPERATIONS RELATING TO THE THREE YEAR PERIOD ENDED DECEMBER 31, 1996

     The following discussion and analysis by management is provided to identify
certain  significant factors which affected the financial position and operating
results of ImClone Systems  Incorporated (the "Company" or "ImClone") during the
periods included in the accompanying financial statements.

OVERVIEW AND RISK FACTORS

     The  Company  is a  biopharmaceutical  company  engaged  primarily  in  the
research and  development of therapeutic  products for the treatment of selected
cancers and  cancer-related  disorders.  The products under development  include
cancer therapeutics and cancer vaccines.  Since its inception in April 1984, the
Company has devoted  substantially  all of its efforts and resources to research
and  development  conducted  on its own behalf and through  collaborations  with
corporate partners and academic research and clinical institutions.  The Company
has generated a cumulative net loss of approximately $101,973,000 for the period
from  its  inception  to  December  31,  1996.  The  Company  expects  to  incur
significant additional operating losses over each of the next several years. The
major  sources of the  Company's  working  capital have been the proceeds of its
initial public  offering in November 1991, a second public offering in May 1993,
overseas  offerings in 1994,  the sale of its Cadus  Pharmaceutical  Corporation
("Cadus")  stock  holdings in December 1994 and April 1995,  the debt and equity
transaction  with a group of  investors  (the  "Oracle  Group") in August  1995,
public  offerings  completed in November 1995 and February 1996,  private equity
financings,  license  fees and  research  and  development  fees from  corporate
partners, and income earned on the investment of these funds. See "Liquidity and
Capital  Resources".  Since its inception through December 31, 1996, the Company
also has incurred  indebtedness  of $6,313,000  ($2,000,000  of which was repaid
March 31, 1992) under  Industrial  Development  Revenue  Bonds,  the proceeds of
which have been used for the  acquisition,  construction and installation of the
Company's  research and development  faciltiy in New York City. The Company also
has a remaining  obligation  to  Pharmacia  and UpJohn,  Inc.  ("Pharmacia")  at
December 31, 1996 in the amount of $1.9 million.  See Note 6(a) to the Financial
Statements.

     Substantially  all of the  Company's  products  are in the early  stages of
development,  clinical  studies or  research.  Substantially  all the  Company's
revenues were  generated from license and research  arrangements  with corporate
sponsors.  The Company's revenues under its research and license agreements with
corporate  sponsors have fluctuated and are expected to fluctuate  significantly
from period to period.  Similarly,  the  Company's  results of  operations  have
fluctuated  and are expected to fluctuate  significantly  from period to period.
These  variations  have been,  and are  expected to be,  based  primarily on the
timing of entering into supported research and license agreements, the status of
the Company's various  products,  the timing and level of revenues from sales by
its partner in diagnostics,  Abbott Laboratories ("Abbott"), of products bearing
the Company's  technology,  the addition or termination of research  programs or
funding support,  performance by the Company's corporate  collaborators of their
funding and marketing  obligations,  the  achievement  of specified  research or
commercialization milestones and variations in the level of expenditures for the
Company's  proprietary  products during any given period. The Company's products
will  require  substantial  additional  development  and  clinical  testing  and
investment prior to  commercialization.  To achieve profitable  operations,  the
Company,  alone or with others, must successfully develop,  introduce and market
its  products.  No  assurance  can be given  that any of the  Company's  product
development  efforts will be successfully  completed,  that required  regulatory
approvals  can  be  obtained  or  that  any  products,  if  developed,  will  be
successfully manufactured or marketed or achieve customer acceptance.


                                        1
<PAGE>

RESULTS OF OPERATIONS

Years Ended December 31, 1996 and December 31, 1995

     Revenues  for the years ended  December 31, 1996 and December 31, 1995 were
$600,000 and $800,000,  respectively.  Revenues for both years included $300,000
from its  corporate  partnership  with the  Wyeth-Lederle  Vaccine  Division  of
American  Home Products  Corporation  ("American  Home") in  infectious  disease
vaccines.  In  addition,  revenues  for the years  ended  December  31, 1996 and
December 31, 1995 included  royalty fees of $225,000 and contract  research fees
of $500,000,  respectively, from the Company's strategic alliance with Abbott in
diagnostics.  Finally,  the year ended  December  31, 1996  included  $75,000 in
license fees from the Company's cross-licensing agreement with Immunex for novel
hematopoietic growth factors.

     Total operating expenses for the years ended December 31, 1996 and December
31,  1995  were   $15,443,000  and  $12,507,000,   respectively.   Research  and
development expenses for the years ended December 31, 1996 and December 31, 1995
were $11,482,000 and $8,768,000,  respectively. Such amounts for the years ended
December 31, 1996 and December 31, 1995  represented 74% and 70%,  respectively,
of total operating expenses. The $2,714,000 increase in research and development
expenses is primarily  attributable  to costs  incurred for C225,  the Company's
lead  therapeutic  product  candidate.  This  includes  additional  staffing 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 and 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 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 year
ended  December 31, 1996 were  $3,961,000  compared to  $3,739,000  for the year
ended December 31, 1995. The $222,000  increase  primarily  reflects  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  years to support  planned  increases  in  research  and
development.


                                       2
<PAGE>

     Interest and other income was $918,000 for the year ended December 31, 1996
as compared to $3,120,000 for the year ended December 31, 1995. Other income for
the year ended December 31, 1995 included the sale of the remaining  one-half of
its  shares of  capital  stock of Cadus for  $3,000,000  to High  River  Limited
Partnership ("High River").  See "Liquidity and Capital Resources".  The greater
interest  income  earned  during the year ended  December 31, 1996  reflects the
Company's improved cash position from the November 1995 and February 1996 public
sales of shares of its Common  Stock.  See  "Liquidity  and Capital  Resources".
Interest  and other  expense was  $823,000  and  $1,054,000  for the years ended
December 31, 1996 and December  31,  1995,  respectively.  Such expense for both
years  primarily  includes  interest on two outstanding  Industrial  Development
Revenue  Bonds  with an  aggregate  principal  amount  of  $4,313,000,  interest
recorded on the  liability to Pharmacia for the  reacquisition  of the worldwide
rights  to  Interleukin-6  Mutein  ("IL-6m")  and the  contract  manufacture  of
clinical  material,  and interest  accrued and the  amortization of the non-cash
debt discount  recorded in connection  with the Company's  August 1995 financing
with the Oracle Group. See "Liquidity and Capital  Resources" and Notes 6(a) and
6(b) to the Financial Statements.

     The  Company  had net  losses  of  $16,015,000  or  $0.83  per  share,  and
$9,641,000  or $0.72  per  share,  for the years  ended  December  31,  1996 and
December 31, 1995,  respectively.  The net loss for the year ended  December 31,
1996  included  a  $1,267,000  or $0.07  per share  extraordinary  loss on early
extinguishment  of debt through the May issuance of 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. See "Liquidity and Capital Resources".

Years Ended December 31, 1995 and December 31, 1994

     Revenues  for the years ended  December 31, 1995 and December 31, 1994 were
$800,000 and $950,000,  respectively.  Revenues for the years ended December 31,
1995 and December 31, 1994  consisted of $300,000 from the  Company's  corporate
partnership with American Home in vaccines. In addition,  revenues for the years
ended December 31, 1995 and December 31, 1994 included contract research fees of
$500,000 and $400,000,  respectively, from the Company's strategic alliance with
Abbott in  diagnostics.  Finally,  license fees of $250,000 were recognized from
the Abbott alliance during the year ended December 31, 1994.

     Total operating expenses for the years ended December 31, 1995 and December
31,  1994  were   $12,507,000  and  $15,164,000,   respectively.   Research  and
development expenses for the years ended December 31, 1995 and December 31, 1994
were $8,768,000 and $11,816,000,  respectively. Such amounts for the years ended
December 31, 1995 and December 31, 1994  represented 70% and 78%,  respectively,
of total operating expenses.  The decrease in research and development  expenses
is  attributable  to the reduction in selected  personnel,  laboratory and third
party costs. Also, the Company incurred a one-time charge of $800,000 during the
year ended  December 31, 1994 for the  contract  manufacture  of IL-6m  clinical
material from Pharmacia.


                                       3
<PAGE>

     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 year
ended  December 31, 1995 were  $3,739,000  compared to  $3,348,000  for the year
ended December 31, 1994.  The increase is related  primarily to fees incurred in
connection  with the April 1995 Cadus stock sale, a loan  agreement  and related
financing  with the  Oracle  Group  completed  in August  1995,  a  contemplated
product-related  financing of C225 which the Company did not continue to pursue,
and transfer of the Company's patent representation to outside counsel.

     Interest and other income was  $3,120,000  for the year ended  December 31,
1995 as compared to $3,186,000 for the year ended  December 31, 1994.  Each year
included a gain from the sale of 50% of the Company's common and preferred Cadus
stock to an  unrelated  party for  $3,000,000.  Interest  and other  expense was
$1,054,000  and $821,000 for the years ended  December 31, 1995 and December 31,
1994,  respectively.  Such expense for both years primarily  reflect interest on
two outstanding Industrial Development Revenue Bonds with an aggregate principal
amount of  $4,313,000.  In addition,  interest and other  expense also  included
interest  recorded on the  liability to Pharmacia for the  reacquisition  of the
worldwide rights to IL-6m and the contract  manufacture of clinical material for
the Company's  trials of IL-6m.  See "Liquidity and Capital  Resources" and Note
6(a) to the  Financial  Statements.  Interest for the period ended  December 31,
1995 also includes accrued interest and the amortization of discounted  interest
incurred in connection with the August 1995 financing with the Oracle Group. See
Note 6(b) to the Financial Statements.

     The equity in the loss of affiliate of $342,000 for the year ended December
31, 1994 was  attributable to the Company's share in the losses of Cadus,  which
was  accounted for under the equity  method  during the year.  During 1994,  the
Company owned 28% of the common and preferred  stock of Cadus.  The terms of its
sale of 50% of its holdings in Cadus to High River for $3,000,000 were finalized
in December 1994; the cash  consideration was received by the Company on January
4, 1995.  On April 27, 1995,  sale of the  Company's  remaining  Cadus stock was
completed for $3,000,000 to High River.  See  "Liquidity and Capital  Resources"
and Note 2(e) to the Financial Statements.

     The  Company  had  net  losses  of  $9,641,000  or  $0.72  per  share,  and
$12,191,000  or $1.12 per  share,  for the years  ended  December  31,  1995 and
December 31, 1994,  respectively,  due to the factors discussed above. The lower
loss per share for the year ended  December 31, 1995 was primarily  attributable
to a lower net loss and an increase in the number of outstanding shares.



                                       4
<PAGE>

LIQUIDITY AND CAPITAL RESOURCES

     At December  31,  1996,  the Company  had a cash and cash  equivalents  and
securities available for sale balance of approximately $13.5 million,  virtually
all of  which  represents  the  remaining  balance  of the  proceeds  of  public
offerings of 3,000,000  shares of Common  Stock in November  1995 and  2,200,000
shares of Common Stock in February  1996.  Such balances  totaled  approximately
$10.9 million on February 13, 1997.

     The Company has financed its operations  primarily  through the proceeds of
an initial public offering in November 1991,  which raised  approximately  $31.7
million,  net of expenses,  supported  research funding and license  agreements,
interest income, the issuance of industrial  development bonds and the following
described  additional  financings.  In May 1993, the Company  completed a second
public Common Stock offering which raised  approximately  $10.4 million,  net of
expenses. In 1994, the Company completed several private offerings of its Common
Stock,  including offerings pursuant to Regulation S under the Securities Act of
1933,  as amended  (the "1933  Act").  The 1933 Act places  restrictions  on the
resale in the United States of shares  issued in a Regulation S offering.  These
various private offerings raised an aggregate of approximately $5.7 million.

     In December  1994 the Company  completed the sale of one-half of its shares
of capital stock of Cadus to High River for $3.0 million. During April 1995, the
Company  completed the sale of the  remaining  one-half of its shares of capital
stock of Cadus for $3.0 million, also to High River. In exchange for receiving a
now-expired  right to repurchase all the outstanding  shares of capital stock of
Cadus,  the  Company  granted to High River two  options to  purchase  shares of
Common Stock.  One option is for 150,000  shares at an exercise  price per share
equal to $2.00, subject to adjustment under certain circumstances, and the other
option is for  300,000  shares at an  exercise  price per share  equal to $0.69,
subject to adjustment under certain  circumstances.  Both options will expire on
April 26, 2000.

     In August 1995, the Oracle Group purchased 1,000,000 shares of Common Stock
for a  purchase  price of $1.5  million  and made a loan to the  Company  in the
aggregate  amount of $2.5  million  with a  two-year  maturity,  but  subject to
mandatory  prepayment,  in whole or in part,  upon  the  occurrence  of  certain
events,  including the raising of certain  additional funds. The loan carried an
annual  interest rate of 8%. The Oracle Group includes  Oracle  Partners,  L.P.,
Quasar  International  Partners C.V.,  Oracle  Institutional  Partners L.P., Sam
Oracle Fund, Inc. and Warren B. Kanders. The Oracle Group also received warrants
exercisable at any time until August 10, 2000  entitling the holders  thereof to
purchase  500,000  shares  of  Common  Stock at a price of $1.50  per  share and
500,000 shares of Common Stock at a price of $3.00 per share. As a result of the
Company's  offerings of shares of its Common Stock in November 1995 and February
1996,  the Oracle  Group was entitled to require the Company to apply 20 percent
of the  gross  proceeds  of the sale of the  shares  of  Common  Stock  from the
offerings to repay the loan.

                                 
                                       5
<PAGE>

     In May  1996,  the  Company  and  the  Oracle  Group  exchanged  the  notes
evidencing the 1995 loan in the aggregate  outstanding  principal amount of $2.5
million for 333,333  shares of Common Stock and the Company paid the accrued and
unpaid  interest  on the notes in the amount of  $143,000  in cash.  The Company
recorded an extraordinary  loss of $1,228,000 on the extinguishment of the debt.
The Company has  registered  such shares of Common Stock with the Securities and
Exchange  Commission  (the  "Commission")  under  a  registration  statement  in
accordance with the provisions of the 1933 Act.

     In July 1995,  a director  loaned the Company  $180,000  in exchange  for a
long-term note due two years from issuance at an annual  interest rate of 8%. As
part of the  transaction,  the director was granted 36,000  warrants to purchase
Company  Common Stock at $1.50 per share and an  additional  36,000  warrants to
purchase  Company Common Stock at $3.00 per share.  In May 1996, the Company and
the  director  exchanged  the note for  24,000  shares of  Common  Stock and the
Company  paid the  accrued  and  unpaid  interest  on the note in the  amount of
$10,000 in cash. The Company  recorded an  extraordinary  loss of $39,000 on the
extinguishment  of the debt.  The Company has  registered  such shares of Common
Stock with the Commission under a registration  statement in accordance with the
provisions of the 1933 Act.

     In November 1995, the Company  completed a public sale of 3,000,000  shares
of Common Stock at a per share price to the public of $3.75. Net proceeds to the
Company from this sale  totaled  approximately  $10.6  million  after  deducting
expenses  payable  by the  Company  in  connection  with  the  offering  and the
commission paid by the Company.

     In February 1996, the Company  completed a public sale of 2,200,000  shares
of Common Stock at a per share price to the public of $6.63. Net proceeds to the
Company from this sale  totaled  approximately  $13.6  million  after  deducting
expenses  payable  by the  Company  in  connection  with  the  offering  and the
commission paid by the Company.

     In May 1996,  the  Company  extended  its  collaboration  with  Merck  KGaA
(formerly  E. Merck)  ("Merck")  for the  development  of a  therapeutic  cancer
vaccine,  BEC-2, for use in small-cell lung 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  may  receive up to $11.7  million in license  fees,  research  and
development  support and milestone payments in addition to the monies previously
received under the original agreement.  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 North America.


                                       6
<PAGE>

     In June 1996,  the  Company  and the New York City  Industrial  Development
Agency (the  "NYIDA")  extended  the  maturity  of the  Company's  $2.1  million
repayment  obligation to the NYIDA for the 1986 Industrial  Revenue Bond,  which
was due on June 15, 1996, to December 15, 1997.

     In December  1996,  the Company  entered into a technology  cross-licensing
agreement with Immunex Corporation ("Immunex") relating to FLT3/FLK-2 ligand and
its receptor.  FLT3 ligand is a hematopoietic  growth factor. Under the terms of
the agreement,  the Company has exclusively licensed the receptor to Immunex for
use in the  manufacture  of the ligand.  In return,  the Company will receive an
initial  payment of $150,000  and a royalty  based on the sales of the ligand by
Immunex and its  sub-licensees.  Of the initial  $150,000  payment,  $75,000 was
recorded  as license  fee  revenue  for the year ended  December  31,  1996.  In
addition,  Immunex has granted the Company a non-exclusive license in the United
States  and  Canada  to use its  patented  FLT3/FLK-2  ligand,  manufactured  by
Immunex,  for ex-vivo stem cell expansion  together with an exclusive license to
distribute the ligand with its own proprietary  products for ex-vivo  expansion.
Immunex has agreed to seek to obtain the consent of its parent company, American
Home, to expand the territory of this license to include the world outside North
America.

     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.  The initial  royalty  payment of  approximately  $225,000,  which
covered  Ampliprobe sales from January 1992 through September 1996, was included
under the revenue caption  "research and development  funding from third parties
and other" for the year ended  December  31,  1996.  The  Company  received  the
initial royalty payment from Abbott in late January 1997.

     In December 1996,  the Company  signed an agreement with Finova  Technology
Finance, Inc. ("Finova") to finance the lease of laboratory and computer-related
equipment  and make certain  building  and  leasehold  improvements  to existing
facilities involving payments aggregating approximately $2,500,000. The first of
multiple intended leases has been signed at a cost of $421,000. Each lease has a
fair market value purchase option at the expiration of a 42-month term. Pursuant
to the agreement,  the Company issued to Finova a warrant expiring  December 31,
1999 to purchase 23,220 shares of Common Stock at an exercise price of $9.69 per
share.  The Company has  registered  such shares of Common Stock  underlying the
warrant with the Commission  under a registration  statement in accordance  with
the  provisions  of the 1933 Act.  See Notes  6(a),  10 and 11 to the  Financial
Statements.

     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,   $2.1  and  $2.2  million,
respectively,  in Industrial  Development  Revenue Bonds issued on behalf of the
Company in 1986 and 1990 become due in December 1997 and May 2004, respectively.
See Note 5 to the Financial Statements.

                                       7
<PAGE>

     In July 1993, the Company  entered into an 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 $1.4
million and has further  obligations to Pharmacia.  Such obligations,  including
those to pay for IL-6 mutein  material  manufactured  and supplied by Pharmacia,
totaled $2.4 million at March 31, 1996. In addition,  the Company is required to
pay Pharmacia $2.7 million 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 $2.4 million over
24 months  commencing in March 1996, with interest only payable during the first
six months.  At December 31, 1996 the remaining  obligation to Pharmacia totaled
$1.9 million. 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's budgeted cash expenditures for the twelve month period ending
December 31, 1997 total  approximately  $20.5  million.  Included in this budget
figure are $1.7 million of the  remaining  $1.9 million  obligation to Pharmacia
and the $2.1 million  Industrial  Revenue  Development  Bond debt payable to the
NYIDA in December  1997.  In  addition,  the budget  reflects  the  expansion of
operations to include  numerous new outside  research  agreements,  the proposed
hire of several  new  employees  during  1997 and  related  costs to support the
expansion of the  Company's  research and  development  programs,  including the
expanded  clinical  trials.  The Company  expects  that its  capital  resources,
including the ongoing research  support of its corporate  partners but excluding
the anticipated  proceeds from a proposed public offering of 3,000,000 shares of
Common Stock by the Company for which a  registration  statement  has been filed
with the  Commission  pursuant  to the 1933 Act but which has not as of the date
hereof been declared effective by the Commission (the "Proposed Offering"), will
be  sufficient to fund its  operations  through  1997.  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  the  successful  completion  of a pilot  manufacturing  run
relating  to the  BEC-2  cancer  vaccine  and the  nonoccurence  of third  party
opposition  filings against a currently  allowed patent of the Company in Europe
relating to the Abbott  strategic  alliance.  There can be no assurance that the
Company will achieve  these  milestones  in 1997,  if at all. If  difficulty  is
encountered in attaining these milestones, the Company may postpone the budgeted
expansion  of  operations  to allow for funding of its  operations  beyond 1997.
Accordingly,  in order to fund its capital  needs after 1997,  the Company  will
require  significant  levels of  additional  capital  and  intends  to raise the
necessary  capital through the Proposed  Offering and additional  equity or debt
financings, arrangements with corporate partners or from other sources.


                                       8
<PAGE>

     The Company has entered into  preliminary  discussions  with several  major
pharmaceutical  companies regarding various alternatives  concerning the funding
of research and  development  for certain of its  products.  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
license 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.

     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  Industrial  Development  Revenue Bond
and the 1990 Industrial Development Revenue Bond, which were issued to finance a
portion of the cost of this facility.

     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 plans
to 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 year ended  December 31, 1996
were  $693,000.  Of the total  capital  expenditures  made during the year ended
December 31, 1996,  $421,000 has been reimbursed in accordance with the terms of
the Finova  agreement  mentioned  above  which  provides  for  improvements  and
equipping of the Company's  manufacturing facility in New Jersey. The balance of
capital additions was for equipment and computer-related  purchases for both the
New Jersey  facility and the corporate  office and research  laboratories in New
York.

     At December 31, 1996, the Company had net operating loss  carryforwards for
federal income tax purposes of approximately $97,350,000 which expire at various
dates from 2000  through  2011.  At December  31, 1996 the Company had  research
credit  carryforwards of approximately  $1,883,000 which expire at various dates
between the years 2001 and 2011. Pursuant to Section 382 of the Internal Revenue
Code of 1986, as amended,  the annual utilization of the Company's net operating
loss and research credit carryforwards may be limited if the Company experiences
a change in ownership of more than 50% within a three-year  period.  The Company
believes that one or more of such ownership changes may have occured since 1986.
Therefore,  the Company may be  significantly  limited in utilizing  its tax net
operating loss carryforwards  arising before such ownership  change(s) to offset
future  taxable  income.  Similarly,  the Company may be restricted in using its
research credit carryforwards  arising before such ownership change(s) to offset
future federal income tax expense.


                                        9
<PAGE>

RECENTLY ISSUED ACCOUNTING STANDARDS

     In June 1996, the Financial  Accounting Standards Board issued Statement of
Financial  Accounting  Standards ("SFAS") No. 125,  Accounting for Transfers and
Servicing of Financial Assets and  Extinguishments of Liabilities.  SFAS No. 125
is effective for transfers and servicing of financial assets and extinguishments
of  liabilities  occurring  after  December  31,  1996  and  is  to  be  applied
prospectively.  This Statement provides  accounting and reporting  standards for
transfers and servicing of financial assets and  extinguishments  of liabilities
based on consistent application of a financial-components  approach that focuses
on control.  It distinguishes  transfers of financial assets that are sales from
transfers that are secured borrowings. Management of the Company does not expect
that  adoption  of SFAS No.  125 will have a  near-term  material  impact on the
Company's financial position, results of operations, or liquidity.    

CERTAIN FACTORS AFFECTING FORWARD-LOOKING STATEMENTS

     This report  contains  forward-looking  statements  that involve  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, certain factors should be considered,  including, among
other things, the factors discussed above under "Overview and Risk Factors", and
the risks and uncertainties discussed in 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",  in the Company's
Quarterly  Reports on Form 10-Q and in the  Company's  other reports filed under
the Exchange Act.



                                       10
<PAGE>

                              FINANCIAL STATEMENTS

Index to Financial Statements

Financial Statements

Independent Auditors' Report.................................. ...........   F-2

Balance Sheets at December 31, 1996 and 1995..............................   F-3

Statements of Operations for the 
  Years Ended December 31, 1996, 1995, and 1994...........................   F-4

Statements of Stockholders' Equity for the 
  Years Ended December 31, 1996, 1995, and 1994...........................   F-5

Statements of Cash Flows for the 
  Years Ended December 31, 1996, 1995, and 1994...........................   F-6

Notes to Financial Statements.............................................   F-7



                                      F-1
<PAGE>

INDEPENDENT AUDITORS' REPORT

The Board of Directors
ImClone Systems Incorporated:

     We have audited the financial statements of ImClone Systems Incorporated as
listed  in  the  accompanying   index.   These  financial   statements  are  the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

     We conducted  our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

     In our opinion,  the financial statements referred to above present fairly,
in all material respects, the financial position of ImClone Systems Incorporated
as of December 31, 1996 and 1995, and the results of its operations and its cash
flows for each of the years in the three year period ended December 31, 1996, in
conformity with generally accepted accounting principles.

     As  discussed  in Note 2(h) to the  financial  statements,  the Company has
adopted  Statement of Financial  Accounting  Standards No. 123,  Accounting  for
Stock-Based Compensation, in 1996.

     
                                           /s/ KMPG Peat Marwick LLP
                                           KPMG Peat Marwick LLP

New York, New York
February 18, 1997


                                      F-2
<PAGE>

                          IMCLONE SYSTEMS INCORPORATED

                                 Balance Sheets
                        (in thousands, except share data)

                                                  December 31,     December 31,
                  Assets                            1996               1995
                                                  ------------    -------------
Current assets:
 Cash and cash equivalents .....................   $   2,734       $  10,207 
 Securities available for sale .................      10,780            --
 Prepaid expenses ..............................         122             115
 Amount due from officer and stockholder .......         101             132
 Other current assets ..........................         479              26
                                                   ---------       ---------
      Total current assets .....................      14,216          10,480
                                                   ---------       ---------
Property and equipment:                                            
  Land .........................................         340             340
  Building and building improvements ...........       8,969           8,969
  Leasehold improvements .......................       4,832           4,832
  Machinery and equipment ......................       5,159           4,796
  Furniture and fixtures .......................         536             526
  Construction in progress .....................         320            --
                                                   ---------       ---------
      Total cost ...............................      20,156          19,463
    Less accumulated depreciation                                  
        and amortization .......................      (9,606)         (7,984)
                                                   ---------       ---------
      Property and equipment, net ..............      10,550          11,479
                                                   ---------       ---------
Patent costs, net ..............................         977             707
Deferred financing costs, net ..................          65              74
Other assets ...................................          77              63
                                                   ---------       ---------
                                                   $  25,885       $  22,803
                                                   =========       =========
           Liabilities and Stockholders' Equity                    
                                                                   
Current liabilities:                                               
 Accounts payable ..............................   $   1,059       $     992
 Accrued expenses and other ....................       1,366             826
 Interest payable ..............................         238             343
 Current portion of long-term liabilities ......       3,858           4,584
                                                   ---------       ---------
      Total current liabilities ................       6,521           6,745
                                                   ---------       ---------
Long-term debt .................................       2,200           2,200
Long-term notes payable, net ...................        --             1,928
Other long-term liabilities,                                       
  less current portion..........................         575             107
                                                   ---------       ---------
      Total liabilities ........................       9,296          10,980
                                                   ---------       ---------
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 30,000,000 shares;                                  
    issued 20,248,122 and 16,819,622                               
    at  December 31, 1996 and                                      
    December 31, 1995, respectively;                               
    outstanding 20,233,699 and                                     
    16,806,919 at December 31, 1996 and                            
    December 31, 1995, respectively ............          20              17
  Additional paid-in capital ...................     118,760          97,914
  Accumulated deficit ..........................    (101,973)        (85,958)
  Treasury stock, at cost; 14,423                                  
    and 12,703 shares at December 31, 1996                         
    and December 31, 1995, respectively ........        (169)           (150)
  Unrealized loss on securities                                    
    available for sale .........................         (49)           --
                                                   ---------       ---------
      Total stockholders' equity ...............      16,589          11,823
                                                   ---------       ---------
                                                   $  25,885       $  22,803
                                                   =========       =========    

                 See accompanying notes to financial statements.

                                       

                                      F-3
<PAGE>

                          IMCLONE SYSTEMS INCORPORATED

                            Statements of Operations
                      (in thousands, except per share data)
<TABLE>
<CAPTION>

                                                             Year Ended December 31,
                                                       ---------------------------------
                                                          1996         1995        1994
                                                       ---------    ---------   --------
<S>                                                     <C>         <C>         <C>     
Revenues:
     License fees from third parties ................   $     75    $   --      $    250
     Research and development funding from third
        parties and other ...........................        525         800         700
                                                        --------    --------    --------
                   Total revenues ...................        600         800         950
                                                        --------    --------    --------
Operating expenses:
     Research and development .......................     11,482       8,768      11,816
     General and administrative .....................      3,961       3,739       3,348
                                                        --------    --------    --------
                  Total operating expenses ..........     15,443      12,507      15,164
                                                        --------    --------    --------
Operating loss ......................................    (14,843)    (11,707)    (14,214)
                                                        --------    --------    --------
Other (income) expense:
     Interest and other income ......................       (918)     (3,120)     (3,186)
     Interest and other expense .....................        823       1,054         821
     Equity in loss of affiliate ....................       --          --           342
                                                        --------    --------    --------
                 Net interest and other income ......        (95)     (2,066)     (2,023)
                                                        --------    --------    --------
Loss before extraordinary item ......................    (14,748)     (9,641)    (12,191)
Extraordinary loss on extinguishment of debt.........      1,267        --          --
                                                        --------    --------    --------
Net loss ............................................   $(16,015)   $ (9,641)   $(12,191)
                                                        ========    ========    ========
Net loss per common share:
        Loss before extraordinary item ..............   $  (0.76)   $  (0.72)   $  (1.12)
        Extraordinary loss on extinguishment of debt.       0.07        --          --
                                                        --------    --------    --------
        Net loss per common share ...................   $  (0.83)   $  (0.72)   $  (1.12)
                                                        ========    ========    ========
Weighted average shares outstanding .................     19,371      13,311      10,903
                                                        ========    ========    ========
</TABLE>


                 See accompanying notes to financial statements

                                      F-4
<PAGE>

                          IMCLONE SYSTEMS INCORPORATED

                       Statements of Stockholders' Equity
                  Years Ended December 31, 1994, 1995, and 1996
                        (in thousands, except share data)

<TABLE>
<CAPTION>
                                                                                                             
                                                                    Additional                                    
                                             Common Stock             Paid-in        Accumulated      Treasury     
                                       --------------------------
                                          Shares         Amount       Capital          Deficit         Stock       
                                       --------------   ---------  --------------  ----------------  -----------   
                                       
<S>                                        <C>          <C>        <C>             <C>               <C>           
Balance at December 31, 1993 .......       9,510,183    $     10   $      79,497   $       (64,126)  $     (150)   
                                       --------------   ---------  --------------  ----------------  -----------   
Issuance of common stock ...........       3,067,502           3           5,133                                   
Advances to officer and                
    stockholder ....................                                                                               
Amortization of deferred               
    compensation ...................                                                                               
Net loss ...........................                                                       (12,191)                
                                       --------------   ---------  --------------  ----------------  -----------   
Balance at December 31, 1994 .......      12,577,685    $     13   $      84,630   $       (76,317)  $     (150)   
                                       --------------   ---------  --------------  ----------------  -----------   
Issuance of common stock ...........       4,000,000           4          11,998                                   
Options exercised ..................         156,750                         162                                   
Warrants exercised .................          15,300                          23                                   
Payment of promissory notes ........          57,184                          36                                   
Proceeds from promissory notes .....                                           2                                   
Debt discount ......................                                       1,063                                   
Net loss ...........................                                                        (9,641)                
                                       --------------   ---------  --------------  ----------------  -----------   
Balance at December 31, 1995 .......      16,806,919    $     17   $      97,914   $       (85,958)  $     (150)   
                                       --------------   ---------  --------------  ----------------  -----------   
Issuance of common stock ...........       2,200,000           2          13,560                                   
Options exercised ..................         266,275                         846                                   
Warrants exercised .................         604,892           1           2,960                                   
Options granted to non-employees....                                          95
Extinguishment of debt .............         357,333                       3,260                                   
Debt discount ......................                                         125                                   
Treasury shares ....................          (1,720)                                                       (19)   
Changes in unrealized loss on          
    securities available for sale ...                                                                              
Net loss ............................                                                     (16,015)                
                                       --------------   ---------  --------------  ----------------  -----------   
Balance at December 31, 1996 ........     20,233,699    $     20   $     118,760  $      (101,973)  $     (169)   
                                       ==============   =========  ==============  ================  ===========   
                                  
<CAPTION>
                                                                              Unrealized                            
                                             Amount                             Loss on                      
                                             Due from                          Securities                    
                                           Officer and        Deferred        Available                      
                                           Stockholder      Compensation       for Sale           Total      
                                          --------------  -----------------  -------------   ----------------
                                                                                                             
<S>                                       <C>             <C>                <C>             <C>                                   
Balance at December 31, 1993 ........     $        (398)  $            (21)  $          -    $        14,812                       
                                          --------------  -----------------  -------------   ----------------
Issuance of common stock ............                                                                  5,136 
Advances to officer and                                                                                      
    stockholder .....................               398                                                  398 
Amortization of deferred                                                                                     
    compensation ....................                                   21                                21 
Net loss ............................                                                                (12,191)
                                          --------------  -----------------  -------------   ----------------
Balance at December 31, 1994 ........     $           -   $              -   $          -    $         8,176 
                                          --------------  -----------------  -------------   ----------------
Issuance of common stock ............                                                                 12,002 
Options exercised ...................                                                                    162 
Warrants exercised ..................                                                                     23 
Payment of promissory notes .........                                                                     36 
Proceeds from promissory notes ......                                                                      2 
Debt discount .......................                                                                  1,063 
Net loss ............................                                                                 (9,641)
                                          --------------  -----------------  -------------   ----------------
Balance at December 31, 1995 ........     $           -   $              -   $          -    $        11,823 
                                          --------------  -----------------  -------------   ----------------
Issuance of common stock ............                                                                 13,562 
Options exercised ...................                                                                    846 
Warrants exercised ..................                                                                  2,961 
Options granted to non-employees....                                                                      95
Extinguishment of debt ..............                                                                  3,260 
Debt discount .......................                                                                    125 
Treasury shares .....................                                                                    (19)
Changes in unrealized loss on                                                                         
    securities available for sale ...                                                 (49)               (49)
Net loss ............................                                                                (16,015)
                                          --------------  -----------------  -------------   ----------------
Balance at December 31, 1996 ........     $           -   $              -   $        (49)   $        16,589 
                                          ==============  =================  =============   ================
</TABLE>
                 See accompanying notes to financial statements



                                      F-5
<PAGE>

                          IMCLONE SYSTEMS INCORPORATED

                            Statements of Cash Flows
                                 (in thousands)
<TABLE>
<CAPTION>

                                                                 Year Ended December 31,
                                                           ----------------------------------
                                                               1996       1995       1994
                                                           -----------  ---------- ----------
<S>                                                        <C>         <C>         <C>      

 Net loss ..............................................   $(16,015)   $ (9,641)   $(12,191)
 Adjustments to reconcile net loss to net
      cash used in operating activities:
  Depreciation and amortization ........................      1,704       1,789       1,844
  Expense associated with issuance
      of options .......................................         95        --            21
  Equity in loss of affiliate ..........................       --          --           342
  Loss on sale of investments ..........................       --          --            23
  Fees associated with commercialization
     and license agreement rights ......................       --          --           117
  Extraordinary loss on early
     extinguishment of debt ............................      1,267
  Discounted interest amortization .....................        156         222        --
  Write-off of fixed assets ............................       --             2        --
  Write-off of patent costs ............................       --           126          29
  Changes in:
   Prepaid expenses ....................................         (7)        (37)         19
   Other current assets ................................       (453)         42          (4)
   Due from officer ....................................         31          24        (111)
   Other assets ........................................        (14)        115        (110)
   Interest payable ....................................       (105)        328          (1)
   Accounts payable ....................................         67        (624)        780
   Accrued expenses and other ..........................        540         421         434
                                                            --------    --------    --------
     Net cash used in operating activities .............    (12,734)     (7,233)     (8,808)
                                                           --------    --------    --------
Cash flows from investing activities:
  Acquisitions of property and equipment ...............       (693)        (36)       (434)
  Proceeds from sale of equipment ......................        421        --          --
  Purchases of securities available for sale ...........    (32,665)       --          --
  Sales of securities available for sale ...............     21,836        --         5,350
  Additions to patents .................................       (343)       (186)       (176)
  Investment in and advances to affiliate ..............       --          --           405
                                                           --------    --------    --------
     Net cash (used in) provided by investing activities    (11,444)       (222)      5,145
                                                           --------    --------    --------
Cash flows from financing activities:
  Issuance of common stock .............................     13,562      12,002       5,534
  Proceeds from exercise of stock options and warrants .      3,807         185        --
  Purchase of treasury stock ...........................        (19)       --          --
  Proceeds from long-term notes payable ................       --         2,680        --
  Proceeds from short-term notes payable ...............       --           100         220
  Repayment of short-term notes payable ................       --          (284)       --
  Repayment of long-term debt ..........................       --          --          (400)
  Payments of other liabilities ........................       (645)        (53)        (55)
                                                           --------    --------    --------
     Net cash provided by financing activities .........     16,705      14,630       5,299
                                                           --------    --------    --------
Net (decrease) increase in cash and cash equivalents ...     (7,473)      7,175       1,636
Cash and cash equivalents at beginning of period .......     10,207       3,032       1,396
                                                           --------    --------    --------
Cash and cash equivalents at end of period .............   $  2,734    $ 10,207    $  3,032
                                                           ========    ========    ========
</TABLE>

                 See accompanying notes to financial statements



                                      F-6
<PAGE>

ImClone Systems Incorporated
NOTES TO FINANCIAL STATEMENTS

(1)  Organization and Basis of Preparation

     ImClone Systems Incorporated (the "Company") is a biopharmaceutical company
engaged  primarily in the research and  development of therapeutic  products for
the  treatment  of cancer and cancer  related  disorders.  The  Company  employs
accounting  policies that are in accordance with generally  accepted  accounting
principles in the United States.

     The Company  expects  that its  capital  resources,  including  the ongoing
research  support of its  corporate  partners,  will be  sufficient  to fund its
operations through 1997. If, however, difficulty is encountered in attaining the
milestones  necessary for continued research support, the Company would postpone
the budgeted  expansion  of  operations  to allow for funding of its  operations
beyond 1997.  Accordingly,  in order to fund its capital  needs after that time,
the Company will require significant levels of additional capital and intends to
raise the  necessary  capital  through  additional  equity  or debt  financings,
arrangements  with  corporate  partners or from other  sources.  The Company has
entered into preliminary discussions with several major pharmaceutical companies
regarding   various   alternatives   concerning  the  funding  of  research  and
development  for certain of its  products.  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
license 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.

     The  biopharmaceutical   industry  is  subject  to  rapid  and  significant
technological  change.  The Company has numerous  competitors,  including  major
pharmaceutical  and  chemical  companies,   specialized   biotechnology   firms,
universities and other research  institutions.  These competitors may succeed in
developing  technologies and products that are more effective than any which are
being  developed by the Company or which would render the  Company's  technology
and  products  obsolete  and  non-competitive.  Many of these  competitors  have
substantially  greater  financial and technical  resources  and  production  and
marketing  capabilities  than the Company.  In addition,  many of the  Company's
competitors  have   significantly   greater   experience  than  the  Company  in
pre-clinical testing and human clinical trials of new or improved pharmaceutical
products  and in  obtaining  Food  and Drug  Administration  ("FDA")  and  other
regulatory approvals on products for use in health care. The Company is aware of
various products under  development or manufactured by competitors that are used
for the prevention,  diagnosis or treatment of certain  diseases the Company has
targeted for product development,  some of which use therapeutic approaches that
compete directly with certain of the Company's product  candidates.  The Company
has limited experience in conducting and managing pre-clinical testing necessary
to enter clinical trials required to obtain government approvals and has limited
experience in conducting clinical trials. Accordingly, the Company's competitors
may succeed in  obtaining  FDA  approval  for  products  more  rapidly  than the
Company,  which could adversely affect the Company's  ability to further develop
and market its products. If the Company commences  significant  commercial sales
of its  products,  it will  also be  competing  with  respect  to  manufacturing
efficiency and marketing capabilities, areas in which the Company has limited or
no experience.



                                      F-7
<PAGE>

(2)  Summary of Significant Accounting Policies

(a)  Cash Equivalents

     Cash  equivalents  consist  primarily  of  U.S.   government   instruments,
commercial  paper,  master notes and other readily  marketable debt instruments.
The  Company   considers  all  highly  liquid  debt  instruments  with  original
maturities not exceeding three months to be cash equivalents.

(b)  Investments in Securities

     The Company  classifies its investment in debt and equity securities in one
of three categories: trading, available-for-sale,  or held-to-maturity.  Trading
securities  are bought and held  principally  for the purpose of selling them in
the near term.  Held-to-maturity  securities  are those  securities in which the
Company has the  ability and intent to hold the  security  until  maturity.  All
other securities not included in trading or  held-to-maturity  are classified as
available-for-sale.

     Trading  and  available-for-sale  securities  are  recorded  at fair value.
Held-to-maturity  securities  are recorded at amortized  cost,  adjusted for the
amortization or accretion of premiums or discounts. Unrealized holding gains and
losses on trading securities are included in earnings.  Unrealized holding gains
and losses,  net of related tax effect,  on  available-for-sale  securities  are
excluded from earnings and are reported as a separate component of stockholders'
equity   until   realized.   Realized   gains  and  losses   from  the  sale  of
available-for-sale securities are determined on a specific identification basis.

     A decline in the market value of any available-for-sale or held-to-maturity
security  below  cost that is deemed to be other  than  temporary  results  in a
reduction  in  carrying  amount to fair  value.  The  impairment  is  charged to
earnings  and a new cost basis for the  security is  established.  Premiums  and
discounts   are   amortized   or   accreted   over  the  life  of  the   related
held-to-maturity security as an adjustment to yield using the effective interest
method. Dividend and interest income are recognized when earned.

     At December 31, 1996,  all  investments  in securities  were  classified as
available-for-sale.

(c) Property and Equipment

     Property and  equipment are stated at cost.  Depreciation  of furniture and
equipment is provided by  straight-line  methods over estimated  useful lives of
three to twelve years,  and leasehold  improvements are being amortized over the
related lease term (including optional renewal periods (Note 10)) or the service
lives of the improvements, whichever is shorter.

(d) Patent Costs

     Patent and patent application costs are amortized on a straight-line  basis
over their respective expected useful lives, up to a 15-year period.

(e) Deferred Financing Costs

     Costs incurred in obtaining the Industrial  Development Revenue Bonds (Note
5) are amortized  using the  straight-line  method over the terms of the related
bonds.

                                      F-8
<PAGE>

(f)  Investment in and Advances to Affiliate

     Cadus Pharmaceutical Corporation ("Cadus") was incorporated in January 1992
to develop  novel  classes  of  therapeutics  that  target  signal  transduction
pathways.  The  Company  held a 50%  investment  in the  capital  stock of Cadus
through  November  1994.  In December  1994,  an  agreement  was reached for the
Company to sell  one-half of its shares of capital  stock of Cadus to High River
Limited Partnership ("High River") for total consideration of $3.0 million.  The
gain in 1994 on sale of the  Cadus  shares  was  recorded  in the  Statement  of
Operations  as other  income  for the year ended  December  31,  1994.  The cash
consideration was received by the Company on January 4, 1995.

     During April 1995, the Company completed the sale of the remaining one-half
of its shares of capital stock of Cadus for $3.0 million, also to High River. In
exchange for receiving a now-expired  right to  repurchase  all the  outstanding
shares of capital stock of Cadus,  the Company granted to High River two options
to  purchase  shares of Common  Stock.  One option is for  150,000  shares at an
exercise  price per share equal to $2.00,  subject to  adjustment  under certain
circumstances,  and the other option is for 300,000  shares at an exercise price
per share equal to $0.69,  subject to adjustment  under  certain  circumstances.
Both options will expire on April 26, 2000.

 (g) Revenue Recognition

     License fees are recognized if the Company  enters into license  agreements
with third parties that provide for the payment of non-refundable  fees when the
agreement  is  signed  or when all  parties  concur  that  specified  goals  are
achieved.  These fees are recognized as license fee revenues in accordance  with
the terms of the particular agreement.

     Research and  development  funding  revenue is derived  from  collaborative
agreements  with third parties and is recognized in accordance with the terms of
the respective  contracts.  Revenue from certain  agreements is recognized using
the  percentage of completion  method based on contract  costs  incurred to date
compared with total estimated contract costs.

     Revenue  recognized  in the  accompanying  statements  of operations is not
subject to repayment.  Revenue  received  that is related to future  performance
under such contracts is deferred and recognized as revenue when earned.

(h)  Stock Option Plan

     Prior to January 1, 1996,  the Company  accounted for its stock option plan
in accordance with the provisions of Accounting  Principles  Board (APB) Opinion
No. 25, Accounting for Stock Issued to Employees,  and related  interpretations.
As such, compensation expense would be recorded on the date of grant only if the
current market price of the underlying  stock  exceeded the exercise  price.  On
January 1, 1996, the Company adopted Statement of Financial Accounting Standards
No. 123 ("SFAS No. 123"), Accounting for Stock-Based Compensation, which permits
entities to recognize  as expense over the vesting  period the fair value of all
stock based awards on the date of grant. Alternatively, SFAS No. 123 also allows
entities to continue to apply the  provisions  of APB Opinion No. 25 and provide
pro forma net income and pro forma earnings per share  disclosures  for employee
stock  option  grants made in 1995 and future  years as if the  fair-value-based
method  defined in SFAS No. 123 had been  applied.  The  Company  has elected to
continue to apply the provisions of APB Opinion No. 25 and provide the pro forma
disclosure provisions of SFAS No. 123.

(i)  Research and Development

     Research and development expenditures made pursuant to certain research and
development  contracts  with  academic  institutions,  and  other  research  and
development costs, are expensed as incurred.


                                      F-9
<PAGE>

(j)  Income Taxes

     Effective January 1, 1993 the Company adopted SFAS No. 109,  Accounting for
Income  Taxes.  SFAS No.  109  requires  a change  from the  deferred  method of
accounting for income taxes to the asset and liability  method of accounting for
income taxes. Under the asset and liability method of SFAS No. 109, deferred tax
assets and liabilities  are recognized for the expected future tax  consequences
of events that have been recognized in the Company's financial statements or tax
returns.

(k)  Use of Estimates

     Management  of the Company has made a number of estimates  and  assumptions
relating  to the  reporting  of assets and  liabilities  and the  disclosure  of
contingent  assets and  liabilities  to prepare  these  financial  statements in
conformity with generally accepted accounting  principles.  Actual results could
differ from those estimates.

(l)  Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of

     The Company  adopted the  provisions  of SFAS No. 121,  Accounting  for the
Impairment of Long-Lived  Assets and for Long-Lived Assets to Be Disposed Of, on
January 1, 1996.  This  statement  requires that  long-lived  assets and certain
identifiable  intangibles be reviewed for impairment  whenever events or changes
in  circumstances  indicate  that the  carrying  amount  of an asset  may not be
recoverable.  Recoverability  of  assets  to be held and used is  measured  by a
comparison of the carrying  amount of an asset to future net cash flows expected
to be generated by the asset. If such assets are considered to be impaired,  the
impairment  to be  recognized  is measured  by the amount by which the  carrying
amount of the assets  exceeds  the fair value of the  assets.  Adoption  of this
Statement did not have a material  impact on the Company's  financial  position,
results of operations, or liquidity.

(m)  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.

(n)  Reclassification

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


                                      F-10
<PAGE>

(3) Securities Available-For-Sale

     Securities available-for-sale of $10,780,000 at December 31, 1996 consisted
of  mortgage-backed  debt securities.  The amortized cost of such securities was
$10,829,000  and the net unrealized  holding losses were $49,000 at December 31,
1996. These securities  available-for-sale  have maturities ranging from 1997 to
1999.

(4) Accrued Expenses and Other

     The following items are included in accrued expenses and other:

                                               December 31,      December 31,
                                                  1996              1995
                                               ------------      ------------
Salaries and other
  payroll related expenses .................    $  782,000         $206,000
Legal and accounting fees ..................       217,000          145,000
Other ......................................       367,000          475,000
                                                ----------         --------
                                                $1,366,000         $826,000
                                                ==========         ========

(5) Long-term Debt

     Long-term debt is comprised of the following:

                                               December 31,         December 31,
                                                  1996                 1995
                                               ------------         ------------
10.75% Bond due 1997 .................         $ 2,113,000          $ 2,113,000
11.25% Bond due 2004 .................           2,200,000            2,200,000
Less current portion .................          (2,113,000)          (2,113,000)
                                               -----------          -----------
                                               $ 2,200,000          $ 2,200,000
                                               ===========          ===========

     On December 31, 1986, the New York City Industrial  Development Agency (the
"NYIDA")  issued an  Industrial  Development  Revenue  Bond (the "1986 Bond") on
behalf of the Company in the amount of  $2,113,000.  During  December  1994, the
Bond's  original  maturity  date of December  15, 1994 was  extended to June 15,
1996.  During June 1996, the Company and the NYIDA extended the maturity date an
additional  eighteen  months to December 15, 1997. The proceeds from the sale of
this  Bond  were  used by the  Company  for the  acquisition,  construction  and
installation  of the  Company's  research and  development  facility in New York
City.

     In August 1990, the NYIDA issued  another  Industrial  Development  Revenue
Bond (the "1990 Bond") in the amount of $2,200,000. The Bond is due May 1, 2004.
The  proceeds  from  the  sale of the  Bond  were  used by the  Company  for the
acquisition,  construction  and  installation  of  the  Company's  research  and
development facility in New York City.

     The Company has granted a security  interest in substantially all equipment
located in its New York City facility to secure the  obligations  of the Company
to the NYIDA relating to the 1986 Bond and the 1990 Bond.


                                      F-11
<PAGE>

(6) Long-term Liabilities and Notes Payable

     (a) Other Long-term Liabilities

     Other long-term liabilities is comprised of the following:

                                                  December 31,    December 31,
                                                     1996            1995
                                                  ------------    ------------
Liability to reacquire IL-6m rights ............  $ 1,917,000     $ 2,400,000
Liability under capital lease  obligations .....      354,000         125,000
Liability under license agreement ..............       49,000          53,000
Less current portion ...........................   (1,745,000)     (2,471,000)
                                                  -----------     -----------
                                                  $   575,000     $   107,000
                                                  ===========     ===========

     In July 1993, the Company  entered into an agreement  with Erbamont,  Inc.,
now a subsidiary of Pharmacia  and Upjohn,  Inc.  ("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 $1.4 million and has further obligations to Pharmacia. Such
obligations,  including those to pay for IL-6 mutein material  manufactured  and
supplied by Pharmacia,  totaled $2.4 million at March 31, 1996. In addition, the
Company is required to pay Pharmacia $2.7 million 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 $2.4 million over 24 months  commencing  in March 1996,  with  interest only
payable  during  the  first six  months.  At  December  31,  1996 the  remaining
obligation to Pharmacia  totaled $1.9 million.  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.

     During fiscal 1992, the Company  entered into a capital lease agreement for
laboratory  equipment  which was recorded as an asset in the amount of $262,000.
The lease extends over a five-year  period and has a bargain  purchase option at
the end of the lease term. At December 31, 1996, the accumulated depreciation on
this equipment totaled $180,000. See also Note 10.

     In December 1996,  the Company  signed an agreement with Finova  Technology
Finance, Inc. ("Finova") to finance the lease of laboratory and computer-related
equipment  and make certain  building  and  leasehold  improvements  to existing
facilities involving payments aggregating approximately $2,500,000. The first of
multiple  intended  leases was signed in December 1996 at a cost of $421,000 and
related to  equipment  previously  purchased by the Company  during  1996.  This
capital lease has been treated as a  sale-leaseback  transaction  and no gain or
loss was  recognized  on the sale.  Each lease has a fair market value  purchase
option at the expiration of a 42-month  term. At December 31, 1996,  accumulated
depreciation  on these assets totaled  $6,000.  Pursuant to the  agreement,  the
Company issued to Finova a warrant expiring December 31, 1999 to purchase 23,220
shares of Common  Stock at an  exercise  price of $9.69 per share.  The  Company
recorded a non-cash debt discount of  approximately  $125,000 in connection with
this financing,  which discount is being amortized over the 42-month term of the
first lease. See also Notes 10 and 11.

     In  connection  with the  Company's  production  and eventual  marketing of
certain  products,  the Company entered into a license  agreement which requires
minimum  annual  royalty  payments  throughout  the term of the  agreement.  The
agreement  expires in 2004 and calls for  minimum  annual  payments  of $10,000,
which are creditable against royalties that may be due from sales. To the extent
the minimum annual royalties are not expected to be offset by sales, the Company
has charged the net present value of these payments to  operations.  An interest
rate of 10% was used to discount the cash flows.

                                      F-12
<PAGE>

           (b) Long-term Notes Payable, net

         Long-term notes payable is comprised of the following:

                                                 December 31,    December 31,
                                                     1996           1995
                                                 ------------    ------------
Liability for director
  promissory note, including interest ........   $     --        $   186,000
Liability for long-term loan,
  including interest .........................         --          2,583,000
Less loan discount ...........................         --           (841,000)
                                                 ----------      -----------
                                                 $     --        $ 1,928,000
                                                 ==========      ===========

     In July 1995,  a director  loaned the Company  $180,000  in exchange  for a
long-term note due two years from issuance at an annual  interest rate of 8%. As
part of the  transaction,  the director was granted 36,000  warrants to purchase
Company  common stock at $1.50 per share and an  additional  36,000  warrants to
purchase  Company common stock at $3.00 per share.  In May 1996, the Company and
the  director  exchanged  the note for  24,000  shares of  Common  Stock and the
Company  paid the  accrued  and  unpaid  interest  on the note in the  amount of
$10,000 in cash. The Company  recorded an  extraordinary  loss of $39,000 on the
extinguishment  of the debt.  The Company has  registered  such shares of Common
Stock with the Commission under a registration  statement in accordance with the
provisions of the Securities Act of 1933 (the "1933 Act").

     On August 11, 1995, the Oracle Group purchased  1,000,000  shares of Common
Stock for a purchase price of $1.5 million and made a loan to the Company in the
aggregate  amount of $2.5  million  with a  two-year  maturity,  but  subject to
mandatory  prepayment,  in whole or in part,  upon  the  occurrence  of  certain
events,  including the raising of certain  additional funds. The loan carried an
annual  interest rate of 8%. The Oracle Group includes  Oracle  Partners,  L.P.,
Quasar  International  Partners C.V.,  Oracle  Institutional  Partners L.P., Sam
Oracle Fund, Inc. and Warren B. Kanders. The Oracle Group also received warrants
exercisable at any time until August 10, 2000  entitling the holders  thereof to
purchase  500,000  shares  of  Common  Stock at a price of $1.50  per  share and
500,000 shares of Common Stock at a price of $3.00 per share. As a result of the
Company's  offerings of shares of its Common Stock in November 1995 and February
1996,  the Oracle  Group was entitled to require the Company to apply 20 percent
of the  gross  proceeds  of the sale of the  shares  of  Common  Stock  from the
offerings to repay the loan.

     In May 1996,  the Company and the Oracle Group  exchanged  the notes in the
aggregate  outstanding  principal  amount of $2.5 million for 333,333  shares of
Common Stock and the Company  paid the accrued and unpaid  interest on the notes
in the amount of $143,000 in cash. The Company recorded an extraordinary loss of
$1,228,000 on the  extinguishment  of the debt. The Company has registered  such
shares of Common Stock with the  Commission  under a  registration  statement in
accordance with the provisions of the 1933 Act.


                                      F-13
<PAGE>

(7)  Research Agreements

     The Company has entered into several  research and  development  agreements
with third parties. Generally, the agreements provide for the Company to receive
research and development funding, milestone payments, royalties, or license fees
or a combination  thereof.  In return, the Company has granted licenses to these
third  parties to market or  manufacture  and market  certain of its products in
specified fields of use and in specified geographic areas.

     Revenues  for the years ended  December 31,  1996,  December 31, 1995,  and
December 31, 1994 were $600,000,  $800,000, and $950,000 respectively.  Revenues
for each year  consisted of $300,000  from its  corporate  partnership  with the
Wyeth-Lederle Vaccine Division of American Home Products Corporation  ("American
Home") in infectious disease vaccines. In addition,  revenues for the year ended
December 31, 1996 included royalty fees of $225,000 from the Company's strategic
alliance with Abbott  Laboratories  ("Abbott") in diagnostics.  Revenues for the
years ended December 31, 1995, and December 31, 1994 included  contract research
fees of $500,000 and $400,000,  respectively, also from the Abbott alliance. The
year ended  December  31, 1996 also  included  $75,000 in license  fees from the
Company's  cross-licensing  agreement with Immunex  Corporation  ("Immunex") for
novel  hematopoietic  growth  factors.  Finally,  license fees of $250,000  were
recognized from the Abbott alliance during the year ended December 31, 1994.

     Revenues for all three years were derived from United States sources.

(8)  Capital Stock

     (a) Stock Option Plans:

     In February 1986, the Company  adopted an Incentive Stock Option Plan and a
Nonqualified  Stock  Option Plan (the "86 Plans").  On February  25,  1996,  the
Company adopted an additional  Stock Option Plan and  Nonqualified  Stock Option
Plan (the "96 Plans") which were approved by  shareholders at its Annual Meeting
held June 3, 1996.  Combined,  the 86 and 96 Plans  provide for the  granting of
options to purchase up to 3,000,000  shares of Common Stock to key employees and
advisors.  Incentive  stock  options may not be granted at a price less than the
fair market value of the stock at the date of grant.  Options  under both the 86
and 96 Plans expire ten years from the date of grant.  Certain  options  granted
under these plans vest over three- to five-year  periods.  At December 31, 1996,
options  to  purchase  2,103,577  shares of Common  Stock were  outstanding  and
525,625 shares were available for grant.

     A summary of stock option activity follows:

                                                               Weighted average
                                                   Number of     exercise price 
                                                    shares          per share
                                                   ----------      ----------
Balance at December 31, 1993 ................         969,321        $8.75
1994 activity
     Granted ................................         254,500         3.94
     Exercised ..............................            --
     Canceled ...............................        (331,742)       10.21
                                                   ----------        
Balance at December 31, 1994 ................         892,079        $6.83
1995 activity
     Granted ................................         752,000         1.91
     Exercised ..............................        (156,750)        1.04
     Canceled ...............................        (120,375)        1.45
                                                   ----------        
Balance at December 31, 1995 ................       1,366,954        $2.34
1996 activity
     Granted ................................       1,077,875         9.85
     Exercised ..............................        (266,275)        3.18
     Canceled ...............................         (74,977)        2.58
                                                   ----------        
Balance at December 31, 1996 ................       2,103,577        $6.08
                                                   ----------        

                                      F-14
<PAGE>

     In June 1996, the Company granted options to purchase 116,000 shares of its
Common Stock to certain  Scientific  Advisory Board members in consideration for
future  services.  The fair  value of the grant was  approximately  $756,000  as
calculated using the Black-Scholes option pricing model. Compensation expense is
being recognized  ratably over the four year vesting period of the options.  See
Note 8(c) for weighted average  assumptions used. During the year ended December
31, 1996, the Company recognized  approximately  $95,000 in compensation expense
relating to the above grants.

     During April 1995, the Company completed the sale of the remaining one-half
of its  shares of capital  stock of Cadus for $3.0  million  to High  River.  In
exchange for receiving a now-expired  right to  repurchase  all the  outstanding
shares of capital stock of Cadus,  the Company granted to High River two options
to  purchase  shares of Common  Stock.  One option is for  150,000  shares at an
exercise  price per share equal to $2.00,  subject to  adjustment  under certain
circumstances,  and the other option is for 300,000  shares at an exercise price
per share equal to $0.69,  subject to adjustment  under  certain  circumstances.
Both options will expire on April 26, 2000. The 450,000  options have a weighted
average exercise price of $1.13.

     On February 2, 1995,  exercise  prices for certain  granted and outstanding
Incentive and Nonqualified Stock Options with original exercise prices in excess
of $1.25 per share were offered to be repriced to $1.25 per share,  by vote of a
Special  Subcommittee of the  Compensation  Committee of the Board of Directors.
Benefit of repricing  was  confined to  individuals  who  continued to serve the
Company as employees or  consultants,  and 645,000  options  were  repriced.  In
connection with the offer of repricing,  the vesting  schedule of those choosing
to accept  repriced  options was  extended to June 30, 1995 for options  already
vested or to vest  prior to June 30,  1995.  The  closing  trading  price of the
Company's common stock on February 2, 1995 was $0.69.

(b)  Warrants

     As of December 31, 1996, a total of 3,275,645  common  shares were issuable
under outstanding warrants.  Such warrants have been issued to certain officers,
directors and other employees of the Company,  certain Scientific Advisory Board
members,  certain  investors and certain credit providers and investors.  

     A summary of warrant activity follows:
                                                                 Weighted
                                              Number of      Average Exercise
                                               Shares         Price Per Share
                                              ---------      ----------------
Balance at December 31, 1993 ........         2,983,970            9.47
1994 Activity                                 
     Granted ........................            24,600            0.69
     Exercised ......................              --               --
     Cancelled ......................          (536,003)           6.61
                                              ---------        
Balance at December 31, 1994 ........         2,472,567           10.01
                                              
1995 Activity                                 
     Granted ........................         1,434,300            3.03
     Exercised ......................           (15,300)           1.50
     Cancelled ......................              --               --
                                              ---------        
Balance at December 31, 1995 ........         3,891,567            3.15
                                             
1996 Activity                                
     Granted .......................             23,220            9.69
     Exercised .....................           (604,892)           4.89
     Cancelled .....................            (34,250)          12.92 
                                              ---------        
Balance at December 31, 1996 .......          3,275,645            2.41     
                                              =========
                                       
     During  September  1996,  the Company  repriced  certain  warrants  held by
investors to purchase  80,700  shares of Common Stock in order to promote  their
exercise  prior to pending  expiration.  The warrants were repriced to an amount
which was ten percent less than the average  closing  price for the Common Stock
for the thirty  days  leading up to and  including  the day prior to the date of
exercise.  The fair  market  value of the  warrant  was  reflected  as a cost of
capital.

     During  November  1996,  the  Company  repriced  certain  warrants  held by
investors to purchase  130,000  shares of Common Stock in order to promote their
exercise  prior to pending  expiration.  The warrants were repriced to an amount
which was ten percent less than the average  closing  price for the Common Stock
for the thirty  days  leading up to and  including  the day prior to the date of
exercise. The fair  market  value of the  warrant  was  reflected  as a cost of
capital.

     In December 1995, the Company  granted its President a ten-year  warrant to
purchase  350,000  common  shares at an exercise  price  determined by the $5.50
trading  price of the stock on the date of grant.  The grant of the  warrant was
approved by shareholders at its Annual Meeting held June 3, 1996.

     On February 2, 1995  exercise  prices for certain  granted and  outstanding
warrants  were  offered to be  repriced  to $1.50 per share.  The benefit of the
repricing  was  confined to  individuals  who  continued to serve the Company as
employees or consultants, and 2,048,217 warrants were repriced. In consideration
for the offer of repricing,  those choosing to accept the repriced  warrants are
to pay the  Company  the  difference  in value  before  and after  repricing  as
calculated by use of the Black-Scholes  model, which payment can be made through
promissory  notes to the Company.  The closing  trading  price of the  Company's
common stock on February 2, 1995 was $.69.


                                      F-15
<PAGE>

     The  outstanding  warrants  expire  and are  exercisable  for the number of
shares of Common Stock as shown below:

March 1997....................................................         728,500
December 1999.................................................          47,820
March 2000....................................................          12,300
July 2000.....................................................          72,000
August 2000...................................................         925,000
November 2000.................................................          12,720
March 2001....................................................           2,500
May 2001......................................................       1,112,805
June 2003.....................................................          12,000
December 2005.................................................         350,000
                                                                    ----------
Total.............................................                   3,275,645
                                                                    ==========

(c)  SFAS No. 123:

     Options and Warrants

     In 1996, the Company  adopted the  provisions of SFAS No. 123,  "Accounting
for Stock Based  Compensation".  The  following  table  summarizes  the weighted
average  fair value of stock  options and  warrants  granted  during years ended
December 31, 1996 and 1995:

<TABLE>
<CAPTION>
                                                                Option Plans                     Warrant Plans   
                                                   -----------------------------------   ----------------------------------
                                                           1996              1995             1996               1995
                                                   ------------------   --------------   -------------    -----------------
                                                     Shares      $       Shares    $     Shares    $        Shares      $ 
                                                   ----------  ------   -------- -----   ------  -----    ---------   -----
<S>                                                 <C>        <C>      <C>      <C>     <C>     <C>      <C>         <C>  
Exercise price equals market value at date 
 of grant .....................................     1,077,875  $5.56    602,000  $1.07   23,220  $5.39    1,434,300   $0.64
                                                                
Exercise price exceeds market value at date of     
 grant ........................................          --    $  --    795,000  $0.32      --   $  --    2,048,217   $0.29
</TABLE>


     The above table share amounts for 1995 reflect the impact of the re-pricing
as discussed in Notes 8(a) and (b).

     The fair  value of stock  options  and  warrants  was  estimated  using the
Black-Scholes  option pricing model. The Black-Scholes  model considers a number
of variables  including the exercise  price and the expected life of the option,
the  current  price,  the  expected  volatility  and the  dividend  yield of the
underlying  stock,  and the risk-free  interest rate during the expected term of
the option. The following summarizes the weighted average assumptions used:

<TABLE>
<CAPTION>
                                                   Option Plans                      Warrant Plans
                                         ---------------------------------  --------------------------------
                                              1996             1995             1996              1995
                                         ---------------  ----------------  --------------   ---------------
<S>                                           <C>              <C>              <C>               <C>
     Expected life (years)...............     3.5              2.5              2.0 (1)           2.0
     Interest rate.......................     5.00%            5.00%            5.00%             5.00%
     Volatility..........................    85.13%           85.13%           85.13%            85.13%

</TABLE>

(1)  The weighted average  expected life does not include the warrants  repriced
     in 1996 as they were exercised simultaneously.

     The estimated  volatility  reflects the performance of the Company's Common
Stock over the twelve-month period ended December 31, 1996. The expected life of
the options and  warrants  reflects  the  anticipated  holding  period  prior to
exercise.  The  estimated  risk-free  interest  rate used is based on  risk-free
investment products with similar terms.

     The  following  table  summarizes   information  concerning  stock  options
outstanding at December 31, 1996:

<TABLE>
<CAPTION>

                                              Weighted
                                              Average       Weighted                    Weighted
                               Number         Remaining      Average      Number         Average
          Range of Exercise  Outstanding     Contractual     Exercise   Exercisable      Exercise
               Price         at 12/31/96        Term          Price     at 12/31/96       Price
          -----------------  -----------     -----------     --------   -----------      --------

<S>                               <C>             <C>          <C>         <C>             <C> 
       $ 0.33 - 0.69........      337,500         3.3          0.66        335,250         0.66
         1.03 - 1.91........      387,800         5.7          1.21        275,825         1.24
         2.00...............      150,000         3.3          2.00        150,000         2.00
         3.19 - 3.88........       47,250         8.8          3.80         11,813         3.77
         4.00 - 5.69........      136,750         7.9          5.22         71,688         5.09
         6.38 - 7.88........      107,652         9.4          7.20          3,126         6.38
         8.33 - 9.75........       72,000         9.1          9.10         43,000         9.14
         10.88 - 12.88......      844,625         9.4         10.90        165,250        10.89
         13.33 - 16.00......       20,000         2.9         13.40         19,500        13.33
                                ---------                                ---------
                                2,103,577         7.1          6.08      1,075,452         3.49
                                =========                                =========
</TABLE>

                                      F-16
<PAGE>

     As of December 31, 1996,  the  outstanding  warrants to purchase  3,275,645
common shares were all exercisable.  The weighted average remaining  contractual
term at December 31, 1996 for the 12,300  outstanding  warrants  exercisable  at
$.63 per share is 3.2  years,  the 24,600  exercisable  at $.69 per share is 3.0
years,  the 2,285,525  exercisable at $1.50 per share is 3.6 years,  the 498,500
exercisable at $3.00 per share is 5.8 years, the 21,500 exercisable at $4.00 per
share is 0.2 years, the 350,000 exercisable at $5.50 per share is 9.0 years, the
12,000  exercisable at $7.00 per share is 6.5 years,  the 23,220  exercisable at
$9.69 per share is 3.0 years,  the 6,000  exercisable at $10.00 per share is 3.9
years, and the 42,000 exercisable at $13.33 per share is 4.3 years.

     Pro  forma net loss and loss per share  reflect  compensation  cost of $3.6
million and $2.1 million,  respectively,  for the years ended  December 31, 1996
and 1995. The fair value of combined stock options and stock warrants awarded in
1996 and 1995 were as follows:

(Thousands of dollars, 
except per share amounts)                             1996          1995
- -------------------------                             ----          ----
Net loss                     As reported            $(16,015)      $ (9,641)
                             Pro forma              $(19,653)      $(11,728)
                           
Loss per share               As reported            $  (0.83)      $  (0.72)
                             Pro forma              $  (1.01)      $  (0.88)
                           
     The amounts  disclosed may not be representative of the effects on reported
net loss for future years.

(9)  Income Taxes

     The tax  effects of  temporary  differences  that give rise to  significant
portions of the deferred tax assets and deferred tax liabilities at December 31,
1996 and December 31, 1995 are presented below.
<TABLE>
<CAPTION>

                                                                      December 31,   December  31,
                                                                          1996           1995
                                                                      ------------   -------------
Deferred tax assets:
<S>                                                                      <C>        <C>         
    Liability to reacquire IL-6m rights and materials.............       $863,000    $  1,147,000
    Gain on sale of Cadus shares .................................           --         1,367,000
    Equity in loss of affiliate ..................................           --           917,000
    Research and development credit carryforward .................      1,883,000       1,757,000
    Compensation relating to the issuance of
     stock options and warrants ..................................      2,740,000       3,038,000
    Net operating loss carryforwards .............................     44,374,000      31,870,000
    Other ........................................................        958,000         540,000
                                                                     ------------    ------------
             Total gross deferred tax assets .....................     50,818,000      40,636,000
             Less valuation allowance ............................    (50,818,000)    (40,636,000)
                                                                     ------------    ------------
             Net deferred tax assets .............................   $       --      $       --
                                                                     ------------    ------------
Deferred tax liabilities:
   Property and equipment, principally due to
      depreciation and amortization...............................   $       --      $       --
                                                                     ------------    ------------
             Total gross deferred tax liabilities ................   $       --      $       --
                                                                     ============    ============
             Net deferred tax asset ..............................   $       --      $       --
                                                                     ============    ============
</TABLE>

     For the years ended  December 31, 1996 and  December 31, 1995,  the Company
established  an aggregate  valuation  allowance of $50,818,000  and  $40,636,000
respectively, to reflect management's belief that significant uncertainty exists
regarding the ultimate realization of its deferred tax assets.

     At December 31, 1996, the Company had net operating loss  carryforwards for
federal income tax purposes of approximately $97,350,000 which expire at various
dates from 2000  through  2011.  At December  31, 1996 the Company had  research
credit  carryforwards of approximately  $1,883,000 which expire at various dates
between  years 2001 and 2011.  Pursuant to Section 382 of the  Internal  Revenue
Code of 1986, as amended,  the annual utilization of the Company's net operating
loss and research credit carryforwards may be limited if the Company experiences
a change in ownership of more than 50% within a three-year  period.  The Company
believes  that one or more of such  ownership  changes may have  occurred  since
1986.  Therefore,  the Company may be significantly limited in utilizing its tax
net operating loss  carryforwards  arising  before such  ownership  change(s) to
offset future taxable income.  Similarly, the Company may be restricted in using
its research  credit  carryforwards  arising before such ownership  change(s) to
offset future federal income tax expense.


                                      F-17
<PAGE>

(10)  Commitments

Leases

     The Company leases  premises  under an operating  lease, a portion of which
expired in 1993 and a portion of which expires in 1999. The Company has extended
the 1993  expired  portion of the lease  through 1997 at 85% of each year's fair
market  rental  value and from 1997 to 1999 at 100% of each  year's  fair market
rental value, for a portion of the premises.  The rate for the remaining portion
of the  premises  is  $264,000  annually  through  March 31,  1997 and  $285,000
annually  through March 31, 1999.  The estimated  future lease payment  schedule
below is based on the exercise of the renewal options  described above,  using a
fair market  rental  value of $10.00 per square  foot.  Rent  expense for leased
premises was approximately $508,000,  $493,000, and $467,000 for the years ended
December 31, 1996, 1995 and 1994, respectively.

     Future minimum lease payments under the capital and operating leases are as
follows:

                                                    Capital         Operating
                                                    Leases            Leases
                                                 ------------       ------------
Years ending December 31,
- -------------------------
1997 ...................................         $   203,000          $  516,000
1998 ...................................             142,000             513,000
1999 ...................................             141,000             291,000
2000 ...................................              71,000               8,000
2001 ...................................                --                 1,000
Thereafter .............................                --                  --
                                                 -----------          ----------
                                                 $   557,000          $1,329,000
Less interest expense ..................            (203,000)               --
                                                 -----------          ----------
                                                 $   354,000          $1,329,000
                                                 ===========          ==========

Supported Research

     The Company has entered into various  research and license  agreements with
certain  universities  to supplement  the Company's  research  activities and to
obtain for the Company rights to certain  technology.  The agreements  generally
require  the  Company  to fund the  research  and to pay  royalties  based  upon
percentages of revenues,  if any, on sales of products developed from technology
arising under these agreements.

Consulting Agreements

     The  Company  has  consulting  agreements  with  several of its  Scientific
Advisory Board members and other consultants. These agreements generally are for
a term of one year or are terminable at the Company's option.


                                      F-18
<PAGE>

(11) Supplemental  Cash Flow  Information  and Non-cash  Investing and Financing
     Activities are as Follows:
<TABLE>
<CAPTION>

(In Thousands)                                               1996          1995         1994   
                                                             ----          ----         ----   
<S>                                                         <C>           <C>         <C>    
Supplemental Cash Flow Information 
  Cash paid during the period for:
     Interest.............................................  $ 817.0       $ 504.0     $ 504.0
                                                            -------       -------     -------
Supplemental Non-cash Investing and Financing Activities
   Finova capital asset and lease obligation additions....    421.0          --           --
   Fair value of Finova warrant...........................    125.0          --           --
   Extinguishment of Oracle Group debt for stock..........  2,500.0          --           --
   Extinguishment of director debt for stock..............    180.0          --           --
   Unrealized loss on securities available for sale.......     49.0          --           --
</TABLE>

(12)  Related Party Transactions

     The outstanding  balance of total  miscellaneous  noninterest-bearing  cash
advances to the  President  and CEO of the Company on December  31, 1994 totaled
approximately  $156,000.  The officer  has  provided  the Company  with a demand
promissory  note  pursuant to which the officer is  obligated  to repay the debt
over a twenty four month period ending April 30, 1997.

     During the year ended  December  31,  1995,  the  Company  made  additional
miscellaneous non-interest-bearing cash advances to the officer totaling $7,000.
In addition, the officer repaid $31,000 of the demand promissory note during the
year ended  December 31, 1995.  This  brought the  outstanding  balance of total
miscellaneous  non-interest-bearing  cash advances to the officer of $132,000 at
December 31, 1995.

     During the year ended  December  31,  1996,  the  Company  made  additional
miscellaneous non-interest-bearing cash advances to the officer totaling $8,000.
In addition, the officer repaid $39,000 of the demand promissory note during the
year ended  December 31, 1996.  This  brought the  outstanding  balance of total
miscellaneous  non-interest-bearing  cash advances to the officer of $101,000 at
December 31, 1996.

     In March 1995,  two  directors  (one of whom is an officer) each loaned the
Company  $20,000 in exchange for short-term  notes due sixty days from issuance.
As part of the  transaction,  the directors  were each granted  2,460  five-year
warrants to purchase  Company common stock at $.625 per share, the stock closing
price on the date of the  promissory  note.  Each lender could accept payment of
principal and interest at 15% in Company  shares in lieu of cash,  also at $.625
per share. In May 1995, one director  accepted payment of $20,493 which included
principal and interest at 15%. The second lender accepted principal and interest
totaling $15,493 and 8,000 shares of Company common stock at $.625 per share.



                                      F-19
<PAGE>

     Also in March 1995,  a director and a  shareholder  each loaned the Company
$30,000 in exchange for short-term notes due sixty days from issuance. As a part
of the  transaction,  the  director  and  shareholder  were each  granted  3,690
five-year  warrants to purchase  Company  common  stock at $.625 per share,  the
stock closing price on the date of the promissory note. Each lender could accept
payment of principal and interest at 15% in Company shares in lieu of cash, also
at $.625 per share.  During May 1995,  the director  accepted  payment of 49,184
shares of  Company  common  stock at $.625  per  share,  while  the  shareholder
accepted $30,740 which included principal and interest at 15%.

     In May 1995, the Company loaned an officer $20,000 in exchange for a demand
promissory  note.  The  officer was  obligated  to repay the debt over a sixteen
month period  ended  September  17, 1996.  The loan was paid in full in December
1995.

     In January 1996, the Company paid Concord  International  Investment Group,
LP,  approximately  $163,000  for  services  rendered  by it to the  Company  in
connection with structuring a contemplated  product related  financing for C225.
Mr.  Robert F.  Goldhammer,  Chairman  of the Board of  Directors,  is a limited
partner of Concord International Investment Group, LP.

     In  August  1995 and  January  1996,  the  Company  paid  Delano &  Kopperl
Financial Advisors,  Inc. a total of approximately $69,000 for services rendered
by it to the Company in  connection  with  structuring  a  contemplated  product
related  financing  for C225.  Paul B.  Kopperl,  a director of the Company,  is
President, director, and 25% shareholder of Delano & Kopperl Financial Advisors,
Inc.


                                      F-20
<PAGE>

(13) Fair Value of Financial Instruments

     For the years ended December 31, 1996 and 1995,  the following  methods and
assumptions  were used to  estimate  the fair value of each  class of  financial
instrument:

     Cash and cash equivalents, accounts payable, accrued and other current
liabilities

     The carrying  amounts  approximate fair value because of the short maturity
of those instruments.

Long-term debt and notes payable

     Discounted  cash flow  analyses  were used to  determine  the fair value of
long-term  debt  and  notes  payable  because  quoted  market  prices  on  these
instruments were unavailable.  The fair value of these instruments  approximated
the carrying amount.

(14) Summary of Quarterly Results of Operations (Unaudited)

     The  following  unaudited  quarterly  financial  information  includes,  in
management's  opinion, all normal and recurring  adjustments necessary to fairly
present the Company's  results of  operations  and related  information  for the
periods  presented.  Net loss per share  has been  computed  using the  weighted
average shares outstanding  during each quarter.  Common stock equivalent shares
are excluded where the effect of their  inclusion would result in decreasing the
net loss per share.

<TABLE>
<CAPTION>
                                                                Quarter Ended
                                             ------------------------------------------------
(In thousands, except per share data)         3/31           6/30         9/30        12/31
                                             ---------    ---------     --------     --------
<S>                                          <C>           <C>          <C>          <C>    
Year ended December 31, 1996
Revenues .................................   $    75       $    75      $    75      $   375
Operating expenses .......................     3,066         3,438        3,714        5,225
                                             -------       -------      -------      -------
Operating loss ...........................    (2,991)       (3,363)      (3,639)      (4,850)
Net interest and other expense(income) ...       154           (61)         (97)         (91)
                                             -------       -------      -------      -------
Loss before extraordinary item ...........    (3,145)       (3,302)      (3,542)      (4,759)
Extraordinary loss on extinguishment
   of debt................................      --           1,267         --           --
                                             -------       -------      -------      -------
Net loss .................................   $(3,145)      $(4,569)     $(3,542)     $(4,759)
                                             =======       =======      =======      =======
Net loss per common share:
Loss before extraordinary item ...........   $ (0.18)      $ (0.17)     $ (0.18)     $ (0.25)
Extraordinary loss on extinguishment
   of debt ...............................      --            0.06         --           --
                                             -------       -------      -------      -------
Net loss per common share ................   $ (0.18)      $ (0.23)     $ (0.18)     $ (0.25)
                                             =======       =======      =======      =======

Year ended December 31, 1995
Revenues .................................   $    75       $    75      $   575      $    75
Operating expenses .......................     2,871         2,745        2,823        4,068
                                             -------       -------      -------      -------
Operating loss ...........................    (2,796)       (2,670)      (2,248)      (3,993)
Net interest and other expense(income) ...       218        (2,837)         267          286
                                             -------       -------      -------      -------
Net income (loss) ........................    (3,014)          167       (2,515)      (4,279)
                                             -------       -------      -------      -------
Net income (loss) per share ..............   $ (0.24)      $  0.01      $ (0.19)     $ (0.29)
                                             =======       =======      =======      =======
</TABLE>

                                      F-21
<PAGE>

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits.

     (c)  Exhibits (numbered in accordance with S-K Item 601)

          23  Consent of KPMG Peat Marwick LLP


<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


Date: February 27, 1997                 By /s/ JOHN B. LANDES
                                               --------------
                                               John B. Landes
                                               Vice President
                                               Business Development
                                               and General Counsel





The Board of Directors
ImClone Systems Incorporated:


     We consent to the incorporation by reference in the registration statements
Nos. 33-95860, 333-07339 and 333-21417 on Form S-3 and Nos. 333-10275 and
33-95894 on Form S-8 of ImClone Systems Incorporated of our report dated
February 18, 1997, with respect to the balance sheets of ImClone Systems
Incorporated as of December 31, 1996 and 1995, and the related statements of
operations, stockholders' equity and cash flows for each of the years in the
three-year period ended December 31, 1996, which report appears in the Form 8-K
of ImClone Systems Incorporated dated February 25, 1997.


                                                 /s/ KPMG PEAT MARWICK LLP
                                                 -----------------------------
                                                 KPMG PEAT MARWICK LLP


New York, New York
February 27, 1997



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