UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q

(Mark One)

[X] Quarterly  Report  Pursuant  to Section 13 or 15(d) of the  Securities
Exchange Act of 1934. For the period ended December 31, 2001

                                       OR

[ ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934.  For the transition  period from ____________ to_____________


Commission File Number:    0-12104
                        --------------------------------------------------------

                               IMMUNOMEDICS, INC.
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

             Delaware                                 61-1009366
- ---------------------------------             ---------------------------------
 (State or other jurisdiction of              (IRS Employer Identification No.)
 incorporation or organization)

 300 American Road, Morris Plains, New Jersey                     07950
- --------------------------------------------------------------------------------
(Address of principal executive offices)                        (Zip code)

                                 (973) 605-8200
- --------------------------------------------------------------------------------
              (Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed  by  Section  13 or 15 (d) of the  Securities  Exchange  Act of 1934
during the preceding 12 months (or for such shorter  period that the  registrant
was  required  to file such  reports),  and (2) has been  subject to such filing
requirements for the past 90 days.

                                                                 [X] Yes  [ ] No

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

As of February 13, 2001, there were 49,691,293 shares of the registrant's common
stock outstanding.

                                  Page 1 of 19




                       IMMUNOMEDICS, INC. AND SUBSIDIARIES

                                      INDEX

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

Item 1.  Consolidated Financial Statements (Unaudited):

                Consolidated Balance Sheets -                            3
                December 31, 2001 and June 30, 2001

                Consolidated Statements of Operations
                and Comprehensive Loss -                                 4
                three and six months ended December 31, 2001 and 2000

                Condensed Consolidated Statements of Cash Flows -        5
                six months ended December 31, 2001 and 2000

                Notes to Consolidated Financial Statements -             6
                December 31, 2001

Item 2.  Management's Discussion and Analysis of                        11
                Financial Condition and Results of Operations

Item 3.  Quantitative and Qualitative Disclosures About Market Risks    16


PART II - OTHER INFORMATION
- ---------------------------

Item 1.  Legal Proceedings                                              17

Item 4.  Submission of Matters to a Vote of Security Holders            17

Item 6.  Exhibits and Reports on Form 8-K                               18


SIGNATURES                                                              19
- ----------

                                 Page 2 of 19




Part I - Financial Information
Item 1. Consolidated Financial Statements (Unaudited):

                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
                           Consolidated Balance Sheets
                                   (Unaudited)




                                                                       December 31,              June 30,
                                                                          2001                     2001
                                                                       ------------            ------------
                                                                                         
                              ASSETS

Current Assets:

     Cash and cash equivalents                                         $ 19,735,753            $  8,607,901
     Marketable securities                                               27,771,043              44,682,954
     Accounts receivable, net of allowance for
       doubtful accounts of $140,439 and $125,440 at
       December 31, 2001 and June 30, 2001,  respectively                   766,315                 792,598
     Inventory                                                              973,513                 750,769
     Other current assets                                                 3,619,638               1,151,548
                                                                       ------------            ------------
          Total current assets                                           52,866,262              55,985,770


Property and equipment, net of accumulated
       depreciation of $9,217,079 and $8,711,412 at
       December 31, 2001 and June 30, 2001,  respectively                 4,364,598               3,395,310

Other long-term assets                                                       51,157                 276,157
                                                                       ------------            ------------
                                                                       $ 57,282,017            $ 59,657,237
                                                                       ============            ============

                        LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:

     Current portion of long-term debt                                 $         -             $     70,412
     Accounts payable                                                     2,026,416               1,607,176
     Deferred revenue                                                     9,000,000               9,000,000
     Other current liabilities                                            1,649,928               2,106,254
                                                                       ------------            ------------
          Total current liabilities                                      12,676,344              12,783,842
                                                                       ------------            ------------

Deferred revenue                                                          2,975,728               5,250,000

Minority interest                                                           182,000                 182,000

Commitments and Contingencies
Stockholders' Equity:
     Preferred stock; $.01 par value, authorized 10,000,000 shares;
          issued and outstanding 0 shares
          at December 31, 2001 and June 30, 2001                                 -                       -
     Common stock; $.01 par value, authorized 70,000,000 shares;
          issued and outstanding 49,681,293 and 49,533,871 shares
          at December 31, 2001 and June 30, 2001, respectively              496,813                 495,339
     Capital contributed in excess of par                               155,700,103             155,116,973
     Accumulated deficit                                               (115,045,349)           (114,281,279)
     Accumulated other comprehensive income                                 296,378                 110,362
                                                                       ------------            ------------
          Total stockholders' equity                                     41,447,945              41,441,395
                                                                       ------------            ------------
                                                                       $ 57,282,017            $ 59,657,237
                                                                       ============            ============



     See accompanying notes to unaudited consolidated financial statements.

                                  Page 3 of 19




                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
          Consolidated Statements of Operations and Comprehensive Loss
                                   (Unaudited)


                                                                  Three Months Ended               Six Months Ended
                                                                      December 31,                    December 31,

                                                                   2001          2000             2001          2000
                                                               -----------   -----------      -----------    -----------
                                                                                                 
Revenues:

     Product sales                                             $   892,464   $   934,194      $ 1,873,136    $ 2,172,338
     Royalties and license fee                                   2,402,138         1,931        4,677,603          3,647
     Research and development                                       65,196       161,131          150,803        301,304
     Interest and other                                            553,764       632,531        1,227,005      1,288,949
                                                               -----------   -----------      -----------    -----------
                                                                 3,913,562     1,729,787        7,928,547      3,766,238
                                                               -----------   -----------      -----------    -----------
Costs and Expenses:

     Cost of goods sold                                            186,734       334,890          354,186        416,453
     Research and development                                    2,962,897     2,591,659        5,886,462      4,805,722
     Sales and marketing                                           690,766       717,898        1,322,883      1,277,377
     General and administrative                                    655,095       780,708        1,129,086      1,443,144
                                                               -----------   -----------      -----------    -----------
                                                                 4,495,492     4,425,155        8,692,617      7,942,696
                                                               -----------   -----------      -----------    -----------
Net loss                                                       $  (581,930)  $(2,695,368)     $  (764,070)   $(4,176,458)
                                                               ===========   ===========      ===========    ===========

Comprehensive Loss:

    Net loss                                                   $  (581,930)  $(2,695,368)     $  (764,070)   $(4,176,458)
                                                               -----------   -----------      -----------    -----------
    Other comprehensive income (loss), net of tax:
       Foreign currency translation adjustments                    (54,148)       54,291           62,469         13,687
       Unrealized gain (loss) on securities available for sale    (126,262)      126,092          123,547        104,454
                                                               -----------   -----------      -----------    -----------
    Other comprehensive income (loss)                             (180,410)      180,383          186,016        118,141
                                                               -----------   -----------      -----------    -----------
Comprehensive loss                                             $  (762,340)  $(2,514,985)     $  (578,054)   $(4,058,317)
                                                               ===========   ===========      ===========    ===========
Per Share Data (Basic and Diluted):
    Net loss                                                   $     (0.01)  $     (0.05)     $     (0.02)   $     (0.08)
                                                               ===========   ===========      ===========    ===========
Weighted average number of common
    shares outstanding                                          49,565,125    49,501,654       49,551,620     49,472,859
                                                               ===========   ===========      ===========    ===========


     See accompanying notes to unaudited consolidated financial statements.

                                  Page 4 of 19




                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
                 Condensed Consolidated Statements of Cash Flows
                                   (Unaudited)



                                                                                 Six Months Ended
                                                                                   December 31,
                                                                           2001                  2000
                                                                       ------------         ------------
                                                                                      

Cash flows from operating activities:

      Net loss                                                         $   (764,070)        $ (4,176,458)

Adjustments to reconcile net loss to net cash
      used in operating activities:

      Depreciation                                                          505,667              475,543
      Provision for allowance for doubtful accounts                          14,999               27,107
      Amortization of bond premium                                           54,114               33,257
      Non-cash expense relating to issuance of warrants                           -              508,991
      Compensation expense on stock options                                  53,220               66,000
      Deferred revenue                                                   (2,274,272)                   -
      Changes in operating assets and liabilities                        (2,716,637)              97,160
      Other                                                                  62,469               13,687
                                                                       ------------         ------------
          Net cash used in operating activities                          (5,064,510)          (2,954,713)
                                                                       ------------         ------------

Cash flows from investing activities:

      Purchases of marketable securities                                          -          (32,993,924)
      Proceeds from maturities of marketable securities                  17,206,344           27,885,721
      Additions to property and equipment                                (1,474,955)            (203,367)
                                                                       ------------         ------------
          Net cash provided by (used in) investing activities            15,731,389           (5,311,570)
                                                                       ------------         ------------

Cash flows from financing activities:

      Exercise of warrants                                                  376,875                    -
      Exercise of stock options                                             154,510            1,159,275
      Payments of debt                                                      (70,412)             (77,155)
                                                                       ------------         ------------
          Net cash provided by financing activities                         460,973            1,082,120
                                                                       ------------         ------------

Increase (decrease) in cash and cash equivalents                         11,127,852           (7,184,163)

Cash and cash equivalents at beginning of period                          8,607,901           11,114,079
                                                                       ------------         ------------
Cash and cash equivalents at end of period                             $ 19,735,753         $  3,929,916
                                                                       ============         ============



     See accompanying notes to unaudited consolidated financial statements.

                                  Page 5 of 19



                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
                   Notes to Consolidated Financial Statements
                                   (Unaudited)

(1)  Business Overview and Basis of Presentation

     The   accompanying   unaudited   consolidated   financial   statements   of
     Immunomedics,   Inc.  (the  "Company"),  which  incorporate  the  Company's
     majority  owned  subsidiaries,   have  been  prepared  in  accordance  with
     generally accepted accounting  principles for interim financial information
     and the  instructions  to Form  10-Q and  Rule  10-01  of  Regulation  S-X.
     Accordingly,  the  statements  do not  include all of the  information  and
     footnotes required by generally accepted accounting principles for complete
     annual financial  statements.  In the opinion of the Company's  management,
     all adjustments  (consisting only of normal recurring  accruals)  necessary
     for a fair presentation  have been included.  The balance sheet at June 30,
     2001  has  been  derived  from  the  Company's  audited  2001  consolidated
     financial  statements.  Operating  results for the  six-month  period ended
     December 31, 2001 are not necessarily indicative of the results that may be
     expected  for the full  fiscal  year  ending  June 30,  2002,  or any other
     period.  Certain adjustments and reclassifications  were made to conform to
     the current year presentation.

     The  Company  has  not  achieved  profitable  operations  and  there  is no
     assurance that profitable operations,  if achieved, could be sustained on a
     continuing  basis.  Further,  the  Company's  future  success  will be even
     dependent   on,  among  other   things,   the  success  of  the   Company's
     commercialization  efforts and market  acceptance of the Company's  current
     and future products.

     Since its inception in 1982,  the Company's  principal  source of funds has
     been  private  and  public  sales of equity  securities,  and,  to a lesser
     extent,  revenues  from  research and  development  alliances,  and product
     sales.  The Company  believes that its existing  working  capital should be
     sufficient  to  meet  its  capital  and  liquidity   requirements  for  the
     foreseeable future.

     For  further  information,  refer  to  the  annual  consolidated  financial
     statements and footnotes thereto included in the Company's Annual Report on
     Form 10-K for the fiscal year ended June 30, 2001.

(2)  Cash Equivalents and Marketable Securities

     The  Company   considers  all  highly  liquid   investments  with  original
     maturities  of three months or less,  at the time of  purchase,  to be cash
     equivalents. Included in other current assets at December 31, 2001 and June
     30, 2001 is accrued  interest  earned on cash  equivalents  and  marketable
     securities of approximately $430,000 and $652,000, respectively.

(3)  Income Taxes

     The Company has never made payments of Federal or state income taxes and to
     date has not  generated  net income;  therefore,  no income taxes have been
     reflected  for the  six-month  period ended  December 31, 2001 or any prior
     period.

                                  Page 6 of 19




                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
                   Notes to Consolidated Financial Statements
                                   (Unaudited)

(4)  Net Loss Per Share

     Basic  and  diluted  net  loss  per  share is based on the net loss for the
     relevant period divided by the weighted  average number of shares of common
     stock  issued and  outstanding  during the period.  For the purposes of the
     diluted net loss per share calculations,  the exercise or conversion of all
     potential shares of common stock is not included because their effect would
     have been  anti-dilutive,  due to the net loss  recorded  for the three and
     six-month periods ended December 31, 2001 and 2000. The Company had certain
     securities outstanding at December 31, 2001 and 2000 that were not included
     in the  computation  of diluted  earnings per share  because to do so would
     have  been  anti-dilutive  for the  periods  presented.  The  common  stock
     equivalents  excluded from the diluted per share calculation were 2,606,750
     and 2,239,500 at December 31, 2001 and 2000, respectively.

(5)  Comprehensive Loss

     Comprehensive  loss consists of net loss, net unrealized  gains (losses) on
     securities  available  for sale and certain  foreign  currency  translation
     adjustments  and is presented in the unaudited  consolidated  statements of
     operations and comprehensive loss.

(6)  Inventory

     Inventory  is stated  at the  lower of  average  cost  (which  approximates
     first-in,   first-out)  or  market,  and  includes  materials,   labor  and
     manufacturing  overhead.  At  December  31,  2001,  the  inventory  balance
     consisted of $140,000 of raw materials and $834,000 of finished  goods.  At
     June 30, 2001, the inventory balance consisted of $140,000 of raw materials
     and $611,000 of finished goods.

(7)  Marketable Securities

     The amortized  cost,  gross  unrealized  holding  gains,  gross  unrealized
     holding  losses and fair value of  available-for-sale  securities  by major
     security type at December 31, 2001 and June 30, 2001 were as follows:




                                                   Gross            Gross       Estimated
                                 Amortized       Unrealized       Unrealized       Fair
                                    Cost            Gain             Loss         Value
- -------------------------------------------------------------------------------------------
                                                                   

  December 31, 2001
  Corporate Debt Securities     $ 27,328,000     $  443,000      $        0    $ 27,771,000
                                ============     ==========      ===========    ===========

  June 30, 2001
  Corporate Debt Securities     $ 44,364,000     $  351,000      $  (32,000)   $ 44,683,000
                                ============     ==========      ===========    ===========




                                 Page 7 of 19



                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
                   Notes to Consolidated Financial Statements
                                   (Unaudited)

(8)  Geographic Segment

     The Company  manages its operations as one line of business of researching,
     developing,   manufacturing  and  marketing   biopharmaceutical   products,
     particularly  antibody-based  diagnostics and  therapeutics  for cancer and
     infectious diseases, and it currently reports as a single industry segment.
     The  Company  markets  and sells its  products  in the  United  States  and
     throughout Europe.

     The following tables present financial  information based on the geographic
     location  of the  facilities  of the  Company  as of and for the  three and
     six-month periods ended December 31, 2001 and 2000:

     Three Months Ended
     ------------------
                                December 31, 2001
                                -----------------

                           United States           Europe           Total
                           -------------           ------           -----
     Revenues              $ 3,281,384          $  632,178       $ 3,913,562
     Net income (loss)        (697,475)            115,545          (581,930)

                                December 31, 2000
                                -----------------

                           United States           Europe           Total
                           -------------           ------           -----
     Revenues              $ 1,191,355          $  538,432       $ 1,729,787
     Net income (loss)      (2,751,219)             55,851        (2,695,368)



     Six Months Ended
     ----------------
                                December 31, 2001
                                -----------------

                           United States           Europe           Total
                           -------------           ------           -----
     Revenues              $ 6,635,715          $ 1,292,832      $ 7,928,547
     Net income (loss)      (1,107,089)             343,019         (764,070)

                                December 31, 2000
                                -----------------

                           United States           Europe           Total
                           -------------           ------           -----
     Revenues              $ 2,442,977          $ 1,323,261      $ 3,766,238
     Net income (loss)      (4,669,239)             492,781       (4,176,458)


                                 Page 8 of 19


                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
                   Notes to Consolidated Financial Statements
                                   (Unaudited)

(9)  Development and License Agreement with Amgen

     On  December  17,  2000,  the  Company  signed a  Development  and  License
     Agreement  (the "Amgen  Agreement")  with Amgen Inc.  ("Amgen").  The Amgen
     Agreement provides Amgen with the exclusive rights to clinical  development
     and  commercialization  of  the  Company's  naked  CD22  antibody  product,
     epratuzumab, for the treatment of non-Hodgkin's lymphoma in the territories
     of North America and Australia.

     Pursuant  to the Amgen  Development  and  License  Agreement,  the  Company
     received an up-front  payment of $18,000,000 from Amgen on the closing date
     of February 1, 2001 and could potentially  receive clinical  milestones and
     future  royalties.  The up-front payment of $18,000,000 is being recognized
     as revenue  of  $750,000  per month  over a period of 24 months,  beginning
     February 2001,  which is  management's  best estimate of the period of time
     required for the parties to fulfill their obligations under the Development
     and  License   Agreement   related  to  the   manufacture  of  epratuzumab.
     Accordingly,  the Company recognized $4,500,000 and $2,250,000 as royalties
     and license fee revenue for the six and three-month  periods ended December
     31,  2001,   respectively.   The  remaining   balance  of  $9,750,000   and
     $14,250,000,  is  recorded  as  "Deferred  revenue",  in  the  accompanying
     unaudited  consolidated  balance  sheets at December  31, 2001 and June 30,
     2001, respectively.

     Also  pursuant to the Amgen  Agreement,  Amgen is obligated to pay a supply
     fee to the Company for materials shipped. The fee was originally payable at
     the  point in time  when  Amgen  has  released  a  sufficient  quantity  of
     epratuzumab  to satisfy  its  requirements  of  epratuzumab  for use in the
     conduct of all Pivotal  Trials deemed  necessary by the FDA for approval of
     its United  States  BLA.  If the  Company  fails to comply  with its supply
     obligations  under the  agreement,  then Amgen does not owe the Company any
     fee. As of December 31, 2001,  Amgen has not yet released  such quantity of
     epratuzumab, however, Amgen and the Company have mutually agreed to arrange
     for  funds  to be  paid to the  Company  for the  materials  shipped  since
     inception of the Amgen Agreement. In accordance with this mutual agreement,
     the Company  invoiced Amgen in December 2001 for an amount of approximately
     $2.2 million  covering all shipments of materials made through December 31,
     2001. Such amount is recorded in the  accompanying  consolidated  financial
     statements  as a  receivable  due from Amgen  classified  as other  current
     assets  (the money was  received in January  2002) and as deferred  revenue
     which will be recognized upon the Company fulfilling its supply obligations
     set  forth  in  the  Amgen  Agreement.   Costs  incurred  relating  to  the
     manufacture of the materials supplied to Amgen are recorded as research and
     development  expense as incurred as there is no assurance that such amounts
     as incurred will be reimbursed by Amgen in the future.


                               Page 9 of 19




                       IMMUNOMEDICS, INC. AND SUBSIDIARIES
                   Notes to Consolidated Financial Statements
                                   (Unaudited)

(10) Stockholders' Equity

     At the Company's  Annual Meeting of  Stockholders  on December 5, 2001, the
     stockholders  of  the  Company  approved  an  amendment,   restatement  and
     continuation  of the  Company's  1992 Stock  Option  Plan as the 2002 Stock
     Option Plan.

     On December 23,  1997,  the Company  entered into a Structured  Equity Line
     Flexible  Financing  Agreement  (the "Equity  Line") with an investor  (the
     "Investor"),  pursuant  to which,  subject to the  satisfaction  of certain
     conditions,  the  Company  could  have  received  up  to  an  aggregate  of
     $30,000,000 over a 36-month period.  The Company terminated the Equity Line
     as of  December  9, 1998.  As of the  termination  date,  the  Company  had
     received  a total of  $5,350,000  for which the  Company  issued  1,358,838
     shares of common  stock.  In connection  with the Equity Line,  the Company
     issued to the Investor two  four-year  warrants to purchase an aggregate of
     50,000 and 54,000  shares of common  stock at an exercise  price of $7.5375
     per share and $7.087 per share,  respectively.  The 50,000 warrants with an
     exercise  price of $7.5375 per share were  exercised in December  2001. The
     warrant for 54,000 shares of common stock continues to be outstanding as of
     December 31, 2001.

     On December 16, 1999, the Company issued a warrant  covering  75,000 shares
     of its  common  stock at an  exercise  price of $6.50 per share to induce a
     financial  advisor to enter into a financial  advisory  agreement  with the
     Company.  The Company recognized a final proportionate share of the general
     and administrative  expense associated with these warrants of approximately
     $277,000 and $509,000 for the three and six-month  periods  ended  December
     31, 2000,  respectively,  based on the estimated fair value of the warrants
     as of the vesting date of December 16, 2000.  These warrants were exercised
     in accordance  with their  original terms in December 2001 via a fair value
     cashless  transaction,  whereby the Company  issued 54,422 shares of common
     stock.


                              Page 10 of 19



Part I
Item 2. Management's Discussion and Analysis of Financial Condition and
Results of Operations

Overview

The Company is focused on  developing,  manufacturing  and marketing  monoclonal
antibody-based  products  for the  detection  and  treatment of cancer and other
serious diseases.  The Company's principal focus is therapeutic  antibodies that
can be designed to carry radioisotopes, chemotherapeutic agents, toxins, dyes or
other substances to a specific  target,  such as a disease site or organ system,
and bind to the target.  The Company has  several  such  antibodies  in clinical
development,  including  epratuzumab,  which is in Phase II and Phase III trials
for the treatment of patients  with  non-Hodgkin's  lymphoma.  This antibody has
been licensed to Amgen, Inc., for further development and  commercialization  in
North America and Australia.  The Company has two commercial  diagnostic imaging
agents CEA-Scan and LeukoScan, which utilize the Company's monoclonal antibodies
and are being sold for the detection of colorectal  cancers and bone infections,
respectively. These are the only products that the Company is currently licensed
to market and sell and to date,  the Company has received only limited  revenues
from the sale of these  products.  The  Company  is also  developing  new cancer
therapeutic  antibody technology involving the selective delivery of therapeutic
agents through pre-targeting, in collaboration with IBC Pharmaceuticals, LLC.

Since its  inception  in 1982,  the Company has been  engaged  primarily  in the
research  and  development  and,  more  recently,   the   commercialization   of
proprietary  products  relating to the  detection,  diagnosis  and  treatment of
cancer  and  other  serious  diseases.  The  Company  has  incurred  significant
operating  losses  and has never  earned a profit.  These  operating  losses and
failure to be profitable have been due mainly to the significant amount of money
that the Company has spent on research and development. As of December 31, 2001,
the  Company  had an  accumulated  deficit of  approximately  $115,045,000.  The
Company expects to continue to experience  operating  losses until such time, if
ever,  that it is able to generate  sufficient  revenues from sales of CEA-Scan,
LeukoScan and its other product candidates.

Certain Transactions with Related Parties

Certain of the Company's affiliates,  including members of its senior management
and Board of Directors and their respective  affiliates,  have relationships and
agreements  among  themselves  as well as  with  the  Company  that  create  the
potential  for both real,  as well as  perceived,  conflicts of interest.  These
include Dr. David M. Goldenberg,  our Chairman and Chief Scientific Officer, Ms.
Cynthia L. Sullivan,  our Chief Executive  Officer,  and certain  companies with
which  we  do  business,   including  the  Center  for  Molecular  Medicine  and
Immunology, IMG Technology, LLC, and IBC Pharmaceuticals, LLC.

For example, Dr. Goldenberg is the founder,  President and a member of the Board
of  Trustees  of  the  Center  for   Molecular   Medicine  and   Immunology,   a
not-for-profit corporation also known as the Garden State Cancer Center or CMMI,
that we contract with to conduct certain research  activities.  Dr. Goldenberg's
employment  agreement with us permits him to devote more of his time working for
CMMI  than  for  us,  and  other  key   personnel   of  our  company  also  have
responsibilities to both CMMI and us.

In addition,  the Company,  through its 80% owned subsidiary IMG Technology,  is
involved  in  a  joint  venture  with  Beckman   Coulter,   Inc.  known  as  IBC
Pharmaceuticals.  Dr.  Goldenberg  was  granted  a 20%  equity  interest  in IMG
Technology in accordance  with the terms of his employment  agreement,  and also
serves as Chairman of the Board of Directors of IBC.


                              Page 11 of 19



As a result of these and other  relationships,  the  potential for both real and
perceived  conflicts  of  interest  exists,  and  disputes  could arise over the
allocation of research  projects and ownership of intellectual  property rights.
In  addition,  in the event that the Company  becomes  involved  in  stockholder
litigation regarding these potential conflicts, the Company might be required to
devote  significant  resources and  management  time  defending the Company from
these claims, which could adversely affect its results of operations.

All of the Company's relationships with related parties are more fully described
in the  Company's  Annual  Report on Form 10-K for the year ended June 30, 2001,
and the Company's  Definitive Proxy Statement for the 2001 Annual Meeting,  both
of which  documents are on file with the Securities and Exchange  Commission and
available via the Commission's EDGAR website.

Results of Operations

Six Month Periods Ended December 31, 2001 Compared to 2000

Revenues for the six-month  period ended December 31, 2001 were  $7,929,000,  as
compared to $3,766,000 for the same period in 2000,  representing an increase of
$4,163,000,  or 111%.  Product sales for the six-month period ended December 31,
2001 were  $1,873,000,  as compared to  $2,172,000  for the same period in 2000,
representing  a decrease  of  $299,000,  principally  reflecting  the  Company's
continued transition in focus from development of diagnostic imaging products to
the development of therapeutic compounds. Royalties and license fee revenues for
the six-month period ended December 31, 2001 increased from $4,000 to $4,678,000
for the same period in 2000,  primarily due to the  recognition of $4,500,000 of
the  up-front  payment  received  in  February  2001 from  Amgen.  Research  and
development  revenues for the six-month period ended December 31, 2001 decreased
by $150,000 from $301,000 to $151,000 for the same period of 2000, primarily due
to a lower  rate of  funding  for  grants.  Interest  and other  income  for the
six-month period ended December 31, 2001 decreased by $62,000 from $1,289,000 to
$1,227,000 for the same period in 2000, primarily due to lower rate of return on
cash available for investments.

Total operating  expenses for the six-month  period ended December 31, 2001 were
$8,693,000,  as compared to $7,943,000 for the same period in 2000, representing
an increase  of  $750,000  or 9%.  Research  and  development  expenses  for the
six-month period ended December 31, 2001 increased by $1,080,000 from $4,806,000
to $5,886,000 for the same period in 2000,  primarily due to increased  research
and  development  efforts and  manufacturing  expenses,  including  lab supplies
associated with producing compounds to be used in clinical trials. Cost of goods
sold for the six-month  period ended December 31, 2001 decreased by $62,000 from
$416,000  to $354,000  for the same  period in 2000.  Cost of goods sold for the
six-month period ended December 31, 2000 included cost for expired inventory and
higher sales volume. Sales and marketing expenses for the six-month period ended
December 31, 2001 increased by $46,000, primarily due to the expenses associated
with the relocation of the Company's  European sales office from The Netherlands
to Germany and other  marketing  related  expenses.  General and  administrative
costs for the six-month  period ended December 31, 2001 decreased by $314,000 as
compared  to the same period of 2000,  primarily  due to the  recognition  of an
expense for the six-month period ended December 31, 2000 of $509,000  associated
with warrants issued to a financial  advisor in December 1999,  partially offset
by an increase of other administrative expenses.


                              Page 12 of 19



Net loss for the six-month period ended December 31, 2001 was $764,000, or $0.02
per share, as compared to $4,176,000, or $0.08 per share, for the same period in
2000.  The lower net loss in 2001 as compared to 2000  resulted  primarily  from
greater  royalties and license revenues  partially offset by increased costs and
expenses primarily  attributed to increased research and development  efforts as
discussed above.

Three Month Periods Ended December 31, 2001 Compared to 2000

Revenues for the  three-month  period ended December 31, 2001 were $3,914,000 as
compared to $1,730,000 for the same period in 2000,  representing an increase of
$2,184,000, or 126%. Product sales for the three-month period ended December 31,
2001,  were  $892,000  as  compared  to  $934,000  for the same  period in 2000,
representing  a  decrease  of  $42,000,  principally  reflecting  the  Company's
continued transition in focus from development of diagnostic imaging products to
the development of therapeutic compounds. Royalties and license fee revenues for
the  three-month  period ended  December 31, 2001  increased by $2,400,000  from
$2,000  to  $2,402,000  for  the  same  period  in  2000,  primarily  due to the
recognition of $2,250,000 of the up-front payment received in February 2001 from
Amgen.  Research  and  development  revenues  for the  three-month  period ended
December  31,  2001  decreased  from  $161,000 to $65,000 for the same period in
2000,  primarily  due to a lower rate of funding for grants.  Interest and other
income for the  three-month  period ended December 31, 2001 decreased by $79,000
from  $633,000 to $554,000 for the same period in 2000,  primarily  due to lower
rate of return on cash available for investments.

Total operating expenses for the three-month period ended December 31, 2001 were
$4,495,000 as compared to $4,425,000  for the same period in 2000,  representing
an increase of $70,000.  Research and  development  expenses for the three-month
period  ended  December  31, 2001  increased  by  $371,000  from  $2,592,000  to
$2,963,000 for the same period in 2000,  primarily due to increased research and
development   efforts  and  manufacturing   expenses,   including  lab  supplies
associated with producing compounds to be used in clinical trials. Cost of goods
sold for the  three-month  period ended  December 31, 2001 decreased by $148,000
from $335,000 to $187,000 in the same period in 2000. Cost of goods sold for the
three-month  period ended December 31, 2000 included cost for expired inventory.
Sales and marketing  expenses for the three-month period ended December 31, 2001
decreased  by $27,000.  General  and  administrative  costs for the  three-month
period  ended  December  31, 2001  decreased by $126,000 as compared to the same
period  of  2000,  primarily  due to  the  recognition  of an  expense  for  the
three-month period ended December 31, 2000 of $277,000  associated with warrants
issued to a financial advisor in December 1999,  partially offset by an increase
of other administrative expenses.

Net loss for the  three-month  period ended  December 31, 2001 was $582,000,  or
$0.01 per share,  as compared to  $2,695,000,  or $0.05 per share,  for the same
period  in 2000.  The  lower  net  loss in 2001 as  compared  to 2000  primarily
resulted  from  greater  royalties  and  license  revenues  partially  offset by
increased costs and expenses as discussed above.

Liquidity and Capital Resources

At December  31, 2001 the Company  had  working  capital of  $40,190,000,  which
represents a decrease of $3,012,000  from June 30, 2001. The decrease in working
capital  resulted  primarily from the funding of operating  expenses and capital
expenditures.


                              Page 13 of 19



The Company's liquid asset position,  measured by its cash, cash equivalents and
marketable  securities,  was  $47,507,000  at December 31, 2001,  representing a
decrease  of  $5,784,000  from  June  30,  2001.  This  decrease  was  primarily
attributable  to the funding of operating  expenses and capital  expenditures as
discussed  above.  It  is  anticipated  that  working  capital  and  cash,  cash
equivalents  and  marketable  securities  will decrease  during the remainder of
fiscal  year  2002  as a  result  of  planned  operating  expenses  and  capital
expenditures,  offset in part by projected  revenues  from product  sales in the
United States and Europe.  However, there can be no assurance,  as to the amount
of revenues, if any, these products will provide.

In October 2001, the Company entered into a Distribution  Agreement with Logosys
Logistik GmbH pursuant to which Logosys  packages and distributes  LeukoScan and
CEA-Scan  within the countries  comprising  the European Union and certain other
countries.

The  Company is  obligated  under an  operating  lease for  facilities  used for
research and development,  manufacturing  and office space. On May 29, 1998, the
Company  exercised  its right to renew  for an  additional  term of three  years
expiring in May 2002 at a base annual rate of $441,000. On November 1, 2001, the
Company  renewed for an additional  term of twenty years expiring on October 31,
2021 at a base annual rate of $545,000,  which is fixed for the first five years
and increases  thereafter every five years, which includes an additional area of
15,000 square feet.

In order to support the clinical trial and future commercial  requirements,  the
Company  plans  to  expand  its  manufacturing  facility  and has  entered  into
construction  agreements for a cost of approximately  $6.3 million.  The Company
plans to fund this  project  through  its  working  capital  or other  financing
arrangements.  The facility plan includes  design of two distinct  manufacturing
suites, containing six new bioreactors, which will allow flexibility in terms of
the amount of therapeutic antibodies that can be produced. The Company has begun
design/construction,  and project that the  facility  will be completed in about
eight months.

To date, the Company has never generated positive cash flow from operations. The
Company  believes that its existing working capital should be sufficient to meet
its  capital  and  liquidity  requirements  for  the  foreseeable  future.  This
expectation represents a forward-looking  statement under the Private Securities
Litigation  Reform Act of 1995.  Actual results could differ materially from the
Company's  expectation  as a result  of a number  of  risks  and  uncertainties,
including  the risks  described  in  Exhibit 99 annexed  hereto.  The  Company's
working  capital  and  working  capital  requirements  are  affected by numerous
factors and there is no  assurance  that such  factors  will not have a negative
impact on the Company's liquidity.  Principal among these are the success of its
product  commercialization,  the  technological  advantages  and  pricing of the
Company's products, the impact of the regulatory  requirements applicable to the
Company and access to capital  markets  that can  provide  the Company  with the
resources  when  necessary  to fund its  strategic  priorities.  The  Company is
engaged in continuous  discussions with investment  bankers regarding  financing
opportunities.  The Company will require additional financial resources after it
utilizes its current  liquid  assets in order for it to continue  its  projected
levels of research and development and clinical trials of its product candidates
and regulatory  filings for new indications of existing  products.  There can no
assurance that any additional  financing will be available to the Company at all
or on terms it finds  acceptable  or that the terms of such  financing  will not
cause substantial dilution to existing stockholders.

The Company  intends to supplement its financial  resources from time to time as
market conditions permit through additional financing and through  collaborative
marketing and distribution agreements. The Company continues to evaluate various
programs to raise  additional  capital and to seek additional  revenues from the
licensing of its  proprietary  technology.  At the present time,  the Company is
unable to determine  whether any of these future  activities  will be successful
and, if so, the terms and timing of any definitive agreements.


                              Page 14 of 19



Critical Accounting Policies

In December 2001, the U.S. Securities and Exchange Commission issued a statement
concerning  certain views of the Commission  regarding the appropriate amount of
disclosure by publicly held companies with respect to their critical  accounting
policies.  In particular,  the  Commission  expressed it's view that in order to
enhance investor understanding of financial statements, companies should explain
the effects of critical accounting  policies as they are applied,  the judgments
made in the  application  of these  policies,  and the  likelihood of materially
different  reported  results if  different  assumptions  or  conditions  were to
prevail.  The Company has since carefully  reviewed the disclosures  included in
its filings  with the  Commission,  including,  without  limitation,  its Annual
Report on Form 10-K for the year ended June 30,  2001 and  accompanying  audited
consolidated  financial  statements  and related notes  thereto,  as well as its
definitive proxy statement for the 2001 Annual Meeting.  Based upon this review,
the  Company  continues  to believe  that its  disclosures  with  respect to its
critical  accounting  policies provide investors with a full and fair discussion
of these policies, their application and effect.  Nonetheless,  the Company will
continue to review its critical accounting policies in the future to ensure that
full and complete  disclosure is made. The Company's SEC filings can be obtained
without charge via the Commission's EDGAR website at www.sec.gov.

Recently Issued Accounting Pronouncements

In July 2001, the FASB issued SFAS No. 141, Business Combinations,  and SFAS No.
142,  Goodwill  and Other  Intangible  Assets.  SFAS No. 141  requires  that all
business  combinations  be accounted  for under a single  method -- the purchase
method. Use of the pooling-of-interests  method no longer is permitted. SFAS No.
141  requires  that  the  purchase  method  be used  for  business  combinations
initiated  after June 30, 2001. SFAS No. 142 requires that goodwill no longer be
amortized to earnings, but instead be reviewed for impairment.  SFAS No. 142 has
no impact on the historical  financial  statements of the Company as the Company
does not have any goodwill or  intangible  assets which  resulted  from business
combinations.

Private Securities Litigation Reform Act of 1995

Statements  made in this Form  10-Q,  other  than  those  concerning  historical
information,  should be considered  forward-looking and subject to various risks
and   uncertainties.   Such   forward-looking   statements  are  made  based  on
management's  belief as well as assumptions  made by, and information  currently
available to, management.  Such forward-looking  statements are made pursuant to
the "safe harbor" provisions of the Private Securities  Litigation Reform Act of
1995.  The Company's  actual  results could differ  materially  from the results
anticipated  in these  forward-looking  statements  as a result of a variety  of
factors, including (i) the risks described in Exhibit 99 to this Form 10-Q, (ii)
the risks described under the caption  "Business  Risks" in the Company's Annual
Report on Form 10-K for the fiscal year ended June 30,  2001 (the "2001  10-K"),
(iii) the risks  described  elsewhere  under the caption  "Business" in the 2001
10-K and (iv) the  risks  described  elsewhere  in the 2001  10-K.  The  Company
assumes no obligation to update its forward-looking statements.


                              Page 15 of 19


Item 3. Quantitative and Qualitative Disclosures About Market Risks

The  following  discussion  about  the  Company's  exposure  to  market  risk of
financial  instruments  contains  forward-looking  statements  under the Private
Securities  Litigation  Reform Act of 1995. Actual results may differ materially
from  those  described  due to a  number  of  factors,  including  uncertainties
associated  with  general  economic  conditions  and  conditions  impacting  the
biotechnology industry.

The  Company's  holdings of financial  instruments  are  comprised  primarily of
corporate debt. All such instruments are classified as securities  available for
sale. The Company does not invest in portfolio equity  securities or commodities
or use financial  derivatives for trading purposes.  The Company's debt security
portfolio  represents  funds held  temporarily  pending use in its  business and
operations.  The Company  manages  these funds  accordingly.  The Company  seeks
reasonable  assuredness  of the  safety of  principal  and market  liquidity  by
investing  in rated fixed  income  securities  while at the same time seeking to
achieve a favorable rate or return.  The Company's market risk exposure consists
principally  of exposure to changes in interest  rates.  The Company's  holdings
also are exposed to the risks of changes in the credit  quality of issuers.  The
Company  typically invests in highly liquid debt instruments with fixed interest
rates.  The Company  currently  holds one security with a variable rate based on
three month Libor.

The table below  presents the  principal  amounts and related  weighted  average
interest  rates by its fiscal  year of  maturity  for the  Company's  investment
portfolio as of December 31, 2001:



                                                                                                       Fair
                           2002          2003          2004        2005       2006        Total        Value
                           ----          ----          ----        ----       ----        -----        -----
                                                             (in thousands)
                                                                                

Fixed rate               $ 8,455       $ 9,275       $ 1,500    $     --    $   999      $20,229     $ 20,769
Average interest rate       6.68%         5.84%         6.39%         --       7.28%        6.30%          --
Variable rate            $    --       $    --       $ 6,993    $     --    $    --      $ 6,993     $  7,002
Average interest rate         --            --          2.34%         --         --         2.34%          --
                         -------       -------       -------     -------    -------      -------     --------
        Total            $ 8,455       $ 9,275       $ 8,493    $     --    $   999      $27,222     $ 27,771
                         =======       =======       =======     =======    =======      =======     ========




                              Page 16 of 19



Part II - Other Information

Item 1.  Legal Proceedings

The  Company  is  pursuing  an  infringement  suit  in the  Netherlands  against
Hoffmann-La  Roche.  The suit seeks an  injunction  against the sale by Roche of
certain  immunoassays  that the Company believes infringe it's European patents,
as well as monetary damages for past infringement. The Patent Court in The Hague
originally  dismissed  the action in August  1997,  which the  Company has since
appealed.  Roche has since  initiated  nullity actions in the Netherlands and in
Germany, seeking to invalidate the Company's patents in those countries, and may
take other countermeasures. A trial on the Dutch nullity action was held in June
1998  resulting in dismissal of Roche's suit and  maintenance  of the  Company's
patent claims.  Roche has since  appealed.  A trial on the German nullity action
held in December 1998 preserved the Company's patent claims in amended form. The
Company believes these claims,  as amended,  continue to be infringed by Roche's
immunoassays.  Roche has not  appealed  this  ruling.  The  appeals of the Dutch
infringement and nullity actions were heard  concurrently on March 2, 2000. In a
partial decision rendered in February 2001, the validity of the Company's patent
claims,  as amended  consistent with the German action,  was upheld,  as was the
jurisdiction  of the Dutch Court to issue a cross-border  injunction.  The Dutch
Appeals Court was unable,  however,  to reach a decision on the  infringement by
Roche and has since solicited  additional  submissions from each side. Moreover,
Roche has  appealed  the  remaining  holdings of the Appeals  Court to the Dutch
Supreme  Court.  The Company and its patent  counsel  believe that the Company's
patent claims are valid and that an unfavorable outcome is unlikely. However, to
the extent that Roche  contests or challenges the Company's  patent  claims,  or
files  further  appeals or nullity  actions,  the Company may incur  significant
costs for defending such patents, even if ultimately successful.

The Company is also involved in an action against  Cytogen,  Inc. and C.R. Bard,
Inc.  for  alleged  infringement  of certain  of the  Company's  patent  rights.
Discovery was completed on the liability  issues and a Markman  hearing on claim
interpretation  was held in September 2001. The result was generally  favorable,
although  one issue was not  completely  resolved.  Both sides have since  filed
summary  judgment  motions  and these are  expected  to be heard in the next few
months.  Although  the  Company  believes  that its patent  claims are valid and
infringed,  there can be no  assurance  that the court will agree or that a jury
will find  actual  infringement.  It is  possible  that the  Company  will incur
significant costs in pursuing the suit without a reward of monetary damages.

On December 18,  2001,  a patent was issued to  Genentech  following a prolonged
interference  proceeding.  The Company and its patent  counsel are  studying the
patent and its  prosecution  history to  determine  whether  this patent poses a
material risk of infringement  to the Company,  as well as whether the patent is
unenforceable  on other  grounds.  It is too early to  determine  what,  if any,
action  will be  necessary  on the part of the  Company.  In the event  that the
Company  needs to acquire a license  there can be no assurance  that it would be
available on commercially reasonable terms, if at all.


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

The Company's  annual meeting of  stockholders  was held on December 5, 2000. At
that meeting, David M. Goldenberg,  Cynthia L. Sullivan,  Morton Coleman, Marvin
E.  Jaffe,  Mary E.  Paetzold  and  Richard  R.  Pivirotto  were  re-elected  as
directors. The stockholders also ratified the Company's selection of KPMG LLP as
the Company's  independent auditors for the fiscal year ending June 30, 2002 and
approved the adoption of the Company's 2002 Stock Option Plan.


                           Page 17 of 19



The following number of shares were voted with respect to the matters considered
at the annual meeting:
                                                                     BROKER
                          FOR          AGAINST       ABSTENTION     NON-VOTE
                          ---          -------       ----------     --------
Election of
directors:

David M.
Goldenberg            38,287,381     3,034,421           0             0

Cynthia L.
Sullivan              38,288,431     3,033,371           0             0

Morton Coleman        40,828,365       493,437           0             0

Marvin E. Jaffe       40,823,090       498,712           0             0

Mary E. Paetzold      40,818,015       503,787           0             0

Richard  R.
Pivirotto             40,811,340       510,462           0             0

Selection of
auditors - KPMG       41,123,494       163,100        35,208           0

2002 Stock
Option Plan
adoption              21,665,697     2,473,861        71,812      17,110,432


Item   6.         Exhibits and Reports on Form 8-K

                  (a)  Exhibits.
                       99.1 Risk Factors

                  (b)  Reports on Form 8-K.
                       During the quarter for which this Report on Form 10Q is
                       filed,  the  registrant  filed no reports on Form 8-K.


                          Page 18 of 19




                                   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.


                                            IMMUNOMEDICS, INC.
                                            ------------------
                                              (Registrant)




DATE: February 13, 2002                     /s/ Cynthia L. Sullivan
                                            ----------------------------------

                                            Cynthia L. Sullivan
                                            President, Chief Executive Officer
                                            and Director
                                            (Principal Executive Officer)





DATE: February 13, 2002                     /s/ Gerard G. Gorman
                                            --------------------------

                                            Gerard G. Gorman
                                            Vice President Finance and
                                            Chief Financial Officer
                                            (Principal Financial and
                                             Accounting Officer)



                         Page 19 of 19



                                  EXHIBIT 99.1

                                  RISK FACTORS


Factors That May Affect The Future Results of Immunomedics, Inc.

The  risks  and  uncertainties  described  below  are not the only ones we face.
Additional  risks  and  uncertainties  not  presently  known  to us or that  are
currently deemed  immaterial may also impair our business,  financial  condition
and results of operations.  If any of these risks actually occur,  our business,
financial  condition  and results of operations  could be  materially  adversely
affected.  An  investment in our stock is very  speculative  and involves a high
degree of risk.

Risks Relating to Our Business, Industry and Strategy

We have a history of operating losses and may never become profitable.

We have received only limited  revenue from the sale of our  diagnostic  imaging
products,  and have never  received  revenue from the  commercialization  of any
therapeutic  product.  We have incurred  significant  operating losses since our
formation in 1982 and have not earned a profit since that time.  These operating
losses and our failure to be profitable  have been due mainly to the significant
amount of money that we have spent on our research and development  programs. As
of December  31,  2001,  we had an  accumulated  deficit of  approximately  $115
million. We expect to continue to experience  significant operating losses as we
attempt to develop and commercialize our product  candidates.  If we fail in our
attempts to develop successful  therapeutic products, it is likely that we would
never achieve significant  revenues or become profitable,  either of which would
seriously jeopardize our ability to continue as a going concern.

Most of our therapeutic  product candidates are at an early stage of development
and we may not be able to successfully develop and commercialize them.

Most of our  therapeutic  product  candidates  are still at the early  stages of
preclinical  and  clinical   development.   Significant   further  research  and
development, financial resources and management time will be required to develop
commercially  viable  therapeutic  products and obtain the necessary  regulatory
approvals.  We may never be able to successfully  develop and  commercialize any
therapeutic product candidates. If we fail to gain timely approval from the U.S.
Food and Drug Administration,  or FDA, and other foreign regulatory  authorities
to  commercialize  our product  candidates,  we will be unable to  generate  the
revenues we will need to execute our business plan.

Our ability to market future  products will depend upon our first  obtaining and
then maintaining regulatory approvals,  both of which are subject to a number of
risks and uncertainties.

In order  to  obtain  the  regulatory  approvals  necessary  for the  successful
commercialization  of our  product  candidates,  we will be required to complete
extensive  clinical  trials in humans to demonstrate  the safety and efficacy of
each product  candidate to the  satisfaction  of the FDA and applicable  foreign
regulatory authorities. Even once we begin clinical trials for a new diagnostic


                                  Page 1 of 12



or  therapeutic  product,  it may take up to ten  years or more to  receive  the
required  regulatory  approval to commercialize that product and begin to market
it to the public. In addition,  each stage of clinical  development is generally
more  costly  than  the  prior  stage,  and we may  need to  expend  substantial
resources  on  a  product   candidate  only  to  determine  that  it  cannot  be
successfully commercialized.  Various Federal and, in some cases, state statutes
and regulations also govern or influence the  manufacturing,  safety,  labeling,
storage,  record  keeping and  marketing of these  products.  The  expensive and
lengthy process of obtaining these approvals,  and the maintenance of compliance
with applicable statutes and regulations,  will require us to expend substantial
financial resources and management time.

A clinical  trial may be suspended or  terminated by us or the FDA, or otherwise
fail, for a number of reasons, including:

o    the  product  candidate  may  cause  unforeseen  adverse  side  effects  or
     demonstrate other  characteristics that make it impossible or impracticable
     for us to continue its development;

o    any positive results from  preclinical  studies and initial clinical trials
     may not be  predictive  of results  that will be  obtained  in  later-stage
     testing;

o    we may be unable to timely recruit a sufficient  number of patients for our
     clinical trials which may result in increased costs and delays;

o    we may not be able to  manufacture  sufficient  quantities  of the compound
     necessary to complete the clinical trial, or for later commercialization;

o    trial  results may  indicate  that the product  candidate is not as safe or
     effective as other available therapies; and

o    the clinical  investigators,  trial  monitors or trial subjects may fail to
     comply with the trial plan or protocol,  resulting in delays and additional
     expense.

Any failure or substantial delay in successfully  completing clinical trials and
obtaining  regulatory  approvals for our product  candidates,  particularly  the
ongoing Phase II, Phase III and future trials for  epratuzumab,  could  severely
harm our business and results of operation.  These  approvals may not be granted
on a timely basis, if at all, and even if granted may not cover all the clinical
indications  for which we are seeking  approval.  The approvals may also contain
significant   limitations   in   the   form   of   warnings,    precautions   or
contraindications  with respect to conditions of use. Even after approval can be
obtained,  we may be  required  to recall or  withdraw  a product as a result of
newly  discovered  safety or  efficacy  concerns,  either of which  would have a
materially adverse effect on our business and results of operations.

If we are  unsuccessful  in  completing  our shift in focus from our  diagnostic
imaging products to our pipeline of therapeutic product candidates, our business
will be materially and adversely affected.

As we complete the shift in our focus from diagnostic imaging to our therapeutic
product  candidates,  and as our  scientific  efforts  lead us into the study of
diseases  outside  of our area of  principal  expertise,  we will have to either
develop the necessary expertise internally, or form strategic collaborations to


                                  Page 2 of 12



obtain access to such expertise.  If we proceed  independently,  we will require
additional technical resources and personnel that may be difficult to obtain. If
we decide to enter into collaboration arrangements,  we may find it necessary to
relinquish  rights to some of our technologies,  products or product  candidates
that we would  otherwise  choose to pursue  independently.  If we are  unable to
acquire the  necessary  expertise  or enter into  collaborations  on  acceptable
terms, our ability to develop additional therapeutic product candidates would be
adversely affected.

If we are not able to  successfully  develop a market for our current and future
products,  our  ability  to  continue  as a  going  concern  would  be  severely
jeopardized despite any scientific accomplishments we may have achieved.

Our  diagnostic  imaging  products are the only products  which we are currently
permitted to market and sell and we do not yet have  approval to sell  LeukoScan
in the  United  States.  To date,  we have been able to  develop  only a limited
market for these products,  and as a result have received only limited  revenues
from the sale of these products.  We have not yet even begun to develop a market
for our therapeutic  product  candidates.  In the event we are unable to achieve
broad  market  acceptance  of our current or future  products,  our business and
financial condition would be materially and adversely affected.

We are dependent upon Amgen for the final development and  commercialization  of
epratuzumab in North America and Australia, and they may not be successful.

We have  licensed  epratuzumab  to Amgen in North  America and  Australia.  As a
result,   we  are  relying  on  Amgen  for  the  final   clinical   development,
commercialization and manufacture of epratuzumab in these markets. If Amgen does
not fully perform its  responsibilities  under our agreement,  or if the ongoing
clinical trials being conducted by Amgen are not successful for any reason,  the
future   commercialization   of  this  product   candidate   would  be  severely
jeopardized. In such event, we might never receive any of the milestone payments
or royalties that we are eligible to receive under our agreement and our ability
to fund the  development  and testing of our other product  candidates  would be
adversely affected.

We currently receive funds from a limited number of sources, and we will need to
find additional sources of funding in order to be successful.

To date,  we have  funded  our  research  and  development  programs  using cash
obtained principally from:

o    the sale of our equity securities;

o    payments from Amgen under our licensing agreement;

o    product sales of CEA-Scan and LeukoScan;

o    fees and grants from corporate, academic and governmental partners; and

o    interest income from our investments.


                                  Page 3 of 12



We may not continue to receive funding from any of these sources,  or the amount
of such funding may be dramatically  reduced.  Even if we do continue to receive
these  funds,  we will need to obtain  other  sources of funding to  continue to
conduct our research and development programs and execute our business plan.

If we are unable to obtain the additional capital we need on a timely basis, our
ability to operate and grow our business will be adversely affected.

We intend to continue expending  substantial financial resources on our research
and development programs, and we will need additional capital in order to obtain
regulatory  approvals and commercialize our therapeutic product  candidates.  If
our needs for cash depletes our existing resources we will be required to either
obtain additional capital quickly,  or else  significantly  reduce our operating
expenses  and capital  expenditures,  either of which could have a material  and
adverse effect on us.

Our future capital requirements will depend on numerous factors, including:

o    the progress of our research and development programs;

o    the progress of preclinical and clinical testing;

o    our need for manufacturing  sufficient quantities of our product candidates
     for clinical testing and commercialization;

o    the time and costs involved in obtaining regulatory approvals;

o    the cost of filing, prosecuting,  defending and enforcing our patent claims
     and other intellectual property rights;

o    competing technological and market developments;

o    our   ability   to   establish   collaborative   arrangements   with  large
     pharmaceutical companies and other qualified strategic partners; and

o    the  requirements   and  timing  of  entering  into  technology   licensing
     agreements and other similar arrangements.

While we believe that our existing  cash  resources,  will be sufficient to fund
our  operations  for at least the next 12 months,  we may need  additional  cash
before then for many reasons,  including changes in our research and development
plans, other factors affecting our operating  expenses,  the need for unexpected
capital  expenditures,  and  costs  associated  with any  acquisitions  of other
businesses, assets or technologies that we may choose to undertake.

Our  ability  to raise  future  capital  on  acceptable  terms  will  depend  on
conditions  in the public and private  debt and equity  markets,  our  operating
performance,  as well as the  overall  performance  of  other  companies  in the
biopharmaceutical  and biotechnology  sectors.  Additional  financing may not be
available  to us  when  we  need it on  terms  we  find  acceptable,  if at all.
Furthermore,  the  terms  of any  such  debt or  equity  financing  may  include
covenants  which  limit our  future  ability  to manage  the  business,  contain
preferences,  privileges and rights  superior to those enjoyed by holders of our
common  stock,  and cause  substantial  dilution to our  existing  stockholders.


                                  Page 4 of 12



Certain  potential for  conflicts of interest,  both real and  perceived,  exist
which could result in expensive and time-consuming litigation.

Certain of our affiliates,  including members of our senior management and Board
of Directors and their respective affiliates,  have relationships and agreements
among  themselves that create the potential for both real, as well as perceived,
conflicts of interest.  These include Dr. David M. Goldenberg,  our Chairman and
Chief Scientific Officer, Ms. Cynthia L. Sullivan,  our Chief Executive Officer,
and  certain  companies  with  which we do  business,  including  the Center for
Molecular  Medicine  and  Immunology,  or CMMI,  IMG  Technology,  LLC,  and IBC
Pharmaceuticals,  LLC. For example, Dr. Goldenberg is the founder, President and
a member of the Board of  Trustees of CMMI,  a  not-for-profit  cancer  research
center that we use to conduct  certain  research  activities.  Dr.  Goldenberg's
employment  agreement with us permits him to devote more of his time working for
CMMI  than  for  us,  and  other  key   personnel   of  our  company  also  have
responsibilities  to both CMMI and us. As a result,  the potential for both real
and perceived  conflicts of interest  exists,  and disputes could arise over the
allocation of research  projects and ownership of intellectual  property rights.
In  addition,  in the event that we become  involved in  stockholder  litigation
regarding these potential conflicts,  we might be required to devote significant
resources and  management  time  defending the company from these claims,  which
could adversely affect our results of operations.

If we cannot  successfully and efficiently  manufacture the compounds which make
up our products and product candidates, our ability to sell products and conduct
clinical trials will be impaired.

Our ability to supply the demand for our existing diagnostic  products,  as well
as conduct preclinical and clinical research and development programs,  depends,
in part, on our ability, or that of our partners, to manufacture our proprietary
compounds in accordance with FDA and other regulatory  requirements.  We have no
experience in manufacturing  these compounds in significant  quantities,  and we
may not be able to do so in the quantities and with the degree of purity that we
require.  We currently rely on our manufacturing  facilities in New Jersey,  and
the technical staff working there, for  substantially  all of our  manufacturing
needs. Any  interruption in manufacturing at this site,  whether by natural acts
or otherwise, would significantly and adversely affect our operations, and delay
our  research  and  development  programs.  We  have  encountered  manufacturing
difficulties  in the  past,  and it is  likely  that we will  encounter  similar
difficulties in the future. In addition, we may also have difficulties from time
to time obtaining the raw materials necessary in the manufacturing process.

We have recently begun to scale up our manufacturing  facilities in anticipation
of future needs,  but our completion of this build-out is subject to a number of
risks  and   uncertainties.   If  we  are  unsuccessful  in  expanding  our  own
manufacturing  facilities,  or are otherwise unable to contract with a qualified
third-party to manufacture  these compounds on acceptable  terms, our ability to
complete preclinical and clinical testing and to supply commercial quantities of
our products  would be adversely  affected.  In addition,  if our  manufacturing
facilities fail to comply with FDA and other regulatory requirements,  we may be
required to suspend manufacturing,  perhaps for an extended period of time. This
could have a material adverse effect on our financial condition and cash flow.


                                  Page 5 of 12



Our collaboration agreements may fail or be terminated unexpectedly, which could
result  in  significant  delays  and  substantial  increases  in the cost of our
research, development and commercialization of our product candidates.

We are party to various  arrangements with academic,  governmental and corporate
partners.  The  successful  development  and  commercialization  of the  product
candidates  covered by these  arrangements will depend upon the ability of these
third  parties to fully perform their  contractual  responsibilities.  If any of
these parties  breaches or unexpectedly  terminates  their agreement with us, or
otherwise fails to conduct their activities in a timely manner,  the development
or  commercialization of our product candidates may be delayed. For example, the
Center for Molecular Medicine and Immunology,  a not-for-profit  cancer research
center of which Dr.  David M.  Goldenberg,  our  Chairman  and Chief  Scientific
Officer,  is President and a Trustee,  performs contracted pilot and preclinical
trials in areas of importance to us, as well as basic  research and  preclinical
evaluations  in a number of areas of  potential  interest to us. If CMMI were to
become  unwilling or unable to provide these  services on comparable  terms,  we
would have to quickly make alternative  arrangements  with third parties,  which
could  significantly  delay and  increase  the  expenses  associated  with these
programs.

Our dependence upon third parties for the  manufacture of proprietary  compounds
may have the effect of  increasing  our costs while also limiting our ability to
develop and deliver  these  compounds  on a timely  basis.  For  example,  if we
contract  with a third  party for the  development  and  production  of  certain
humanized   antibodies  and  this  party  does  not  perform  according  to  our
expectations,  our ability to complete the development and  commercialization of
these product candidates will be adversely affected.  In addition,  we currently
rely on a single third party, SP  Pharmaceuticals,  to perform certain end-stage
portions of the  manufacturing  process for  CEA-Scan and  LeukoScan.  We do not
currently  have the resources  necessary to perform these  processes,  and if SP
Pharmaceuticals  were to become unwilling or unable to do so for any reason,  we
would be unable to deliver these products to customers  until we entered into an
agreement  with another  qualified  manufacturer.  This could cause  substantial
delays in customer deliveries and adversely affect our results of operations.

While we intend to continue to enter into additional  collaborations and similar
agreements  as  opportunities  arise,  we may  not be able  to  negotiate  these
arrangements on favorable terms, if at all, and these  relationships  may not be
successful.

Our  future  success  will  depend  upon our  ability  to first  obtain and then
adequately  protect our patent and other  intellectual  property rights, as well
avoiding the infringement of the rights of others.

Our future success will be highly dependent upon our ability to first obtain and
then defend the patent and other intellectual  property rights necessary for the
commercialization  of our  product  candidates.  We have filed  numerous  patent
applications on the  technologies and processes that we use in the United States
and certain foreign countries. Although we have obtained a number of issued U.S.
patents to date, the patent  applications owned or licensed by us may not result
in additional  patents being issued.  Moreover,  these patents may not afford us
the  protection  we  need  against  competitors  with  similar  technologies  or
products.


                                  Page 6 of 12



Although  we  believe  it is  likely we will need to  license  technologies  and
processes from third parties in the ordinary course of our business,  we are not
currently  aware  of  any  material  conflict  involving  our  technologies  and
processes with any valid patents or other intellectual  property rights owned or
licensed  by  others.  In the  event  that a third  party  were to claim  such a
conflict  existed,  they could sue us for  damages as well as seek to prevent us
from  commercializing our product candidates.  It is possible that a third party
could  successfully  claim  that our  products  infringe  on their  intellectual
property rights. Uncertainties resulting from the litigation and continuation of
patent  litigation or other  proceedings could have a material adverse effect on
our  ability to  compete in the  marketplace.  Any  patent  litigation  or other
proceeding,  even if resolved in our favor, would require significant  financial
resources and management  time.  Some of our  competitors may be able to sustain
these costs more effectively than we can because of their substantially  greater
financial and managerial  resources.  If a patent litigation or other proceeding
is resolved  unfavorably to us, we may be enjoined from manufacturing or selling
our products  without a license from the other party,  in addition to being held
liable for significant damages. We may not be able to obtain any such license on
commercially acceptable terms, if at all.

Our ability to continue to sell one of our existing  products  and  successfully
commercialize  a  number  of  our  product  candidates  will  suffer  if we  are
unsuccessful in defending our European patents involving CEA antibodies.

We  are  currently  involved  in  patent  litigation  with  F.  Hoffmann-LaRoche
concerning  the  validity  of our  European  patents  covering  the  proprietary
antibody we use in CEA-Scan,  our cancer imaging product,  and labetuzumab,  our
cancer therapy  product  candidate.  These patents also cover the use of certain
highly  specific  anti-CEA  antibodies  which we believe  have a number of other
therapeutic uses. We believe that Hoffman-LaRoche has infringed our patents, and
they have  responded  by seeking to nullify the patents in  question.  If we are
unsuccessful  in these  proceedings,  our ability to execute our  business  plan
could be materially and adversely affected.

If we are unable to keep our trade secrets  confidential,  our  technologies and
other proprietary information may be used by others to compete against us.

In addition to our  reliance on patents,  we attempt to protect our  proprietary
technologies  and processes by relying on trade secret laws,  nondisclosure  and
confidentiality  agreements,  and licensing  arrangements with our employees and
other persons who have access to our proprietary  information.  These agreements
and  arrangements  may not provide  meaningful  protection  for our  proprietary
technologies  and  processes in the event of  unauthorized  use or disclosure of
such  information.  In  addition,  our  competitors  may  independently  develop
substantially  equivalent technologies and processes or otherwise gain access to
our trade secrets or technology,  either of which could materially and adversely
affect our competitive position.

We face  substantial  competition in the  biotechnology  industry and may not be
able to compete successfully against one or more of our competitors.

The biotechnology  industry is highly  competitive,  particularly in the area of
diagnostic and therapeutic  oncology  products.  In recent years there have been
extensive technological innovations achieved in short periods of time, and it is
possible  that future  technological  changes and  discoveries  by others  could
result in our products and product candidates quickly becoming  uncompetitive or
obsolete.  A number of companies,  including  IDEC  Pharmaceuticals,  Genentech,
Glaxo SmithKline,  Ligand Pharmaceuticals,  Millennium Pharmaceuticals,  Nycomed
Amersham,  Protein Design Laboratories,  Schering AG and Corixa Pharmaceuticals,
are engaged in the development of diagnostic and therapeutic  oncology products.


                                  Page 7 of 12



Many of these  companies have  significantly  greater  financial,  technical and
marketing  resources than we do. In addition,  many of these companies have more
established  positions in the  pharmaceutical  industry and are therefore better
equipped to  develop,  commercialize  and market  oncology  products.  Even some
smaller  competitors may obtain a significant  competitive  advantage over us if
they are able to discover  or  otherwise  acquire  patentable  inventions,  form
collaborative arrangements or merge with larger pharmaceutical companies.

We expect to face increasing  competition from universities and other non-profit
research  organizations.  These  institutions  carry out a significant amount of
research and development in the field of antibody-based  technologies,  and they
are increasingly  aware of the commercial value of their findings.  As a result,
they are demanding patent and other proprietary rights, as well as licensing and
future royalty revenues.

Our  limited  marketing  and  sales  experience  could  impair  our  ability  to
successfully sell products.

We are  currently  relying,  in  substantial  part, on our own limited sales and
marketing staff to market our current diagnostic imaging products,  CEA-Scan and
LeukoScan.   We  currently  have  no  marketing  or  sales  experience  for  our
therapeutic  product  candidates  and will need to attract  qualified  sales and
marketing  professionals  or identify  out-licensing  opportunities  in order to
commercialize any future therapeutic  products. If we are unable to successfully
build our sales force,  our ability to sell  products,  as well as our financial
condition and operating results, could be materially and adversely affected.

We could be temporarily unable to sell our diagnostic products if our agreements
with distributors are unexpectedly terminated.

We  currently  do not have the  internal  resources  necessary  to  develop  and
maintain the operating  procedures  required by the FDA and  comparable  foreign
regulatory  authorities to oversee distribution of our products. As a result, we
have entered into  arrangements  with third parties to perform this function for
the foreseeable future. If these agreements are unexpectedly terminated, we will
be required to quickly enter into comparable  arrangements  with other qualified
third  parties,  and we will be  unable  to  distribute  our  products  until an
acceptable alternative is identified. If we were even only temporarily unable to
distribute  our  products,  our  business  could  be  materially  and  adversely
affected.

We may never receive approval to sell LeukoScan in the United States.

We have not received  approval from the FDA to sell our LeukoScan product in the
United States,  and it remains unclear if we will ever obtain such approval.  In
addition,   the  FDA  could  impose  conditions  on  its  approval  which  could
significantly affect the commercial viability of the product. The FDA could also
require  us  to  undertake  additional  clinical  studies  or  otherwise  expend
additional funds before granting approval,  and we could determine not to pursue
our  application  any  further at that time.  If we do not  receive  approval to
market and sell  LeukoScan in the United  States,  our results of operations and
financial condition could be adversely affected.


                                  Page 8 of 12



In the event we are unable to  continue  to use mouse  fluids for certain of our
product  candidates,  we might need to make expensive and time consuming changes
in our development programs.

CEA-Scan  and certain of our other  imaging  agents are derived  from the fluids
produced in mice. Regulatory authorities, particularly in Europe, have expressed
concerns  about  the use of  these  fluids  for  the  production  of  monoclonal
antibodies.  These regulatory authorities may determine that our quality control
procedures  for these  products  are  inadequate.  While we are  continuing  our
development  efforts  to  produce  certain of our  monoclonal  antibodies  using
alternative methods,  this process constitutes a substantial  production change,
which  in  itself  will  require  additional  manufacturing  equipment  and  new
regulatory  approvals.  In the  event  we have to  discontinue  the use of mouse
fluids,  we may not have the  resources  at the time to  acquire  the  necessary
manufacturing  equipment and expertise  that we will need to make the changes in
our development programs.

We may be liable for  contamination or other harm caused by hazardous  materials
that we use.

In addition to laws and regulations  enforced by the FDA, we are also subject to
regulation  under  various  other  foreign,  Federal,  state and local  laws and
regulations. Our research and development programs involve the controlled use of
viruses,  hazardous materials,  chemicals and various radioactive compounds. The
risk of  accidental  contamination  or injury from these  materials can never be
completely  eliminated,  and if an accident occurs,  we could be held liable for
any damages that result, which could exceed our available resources.

The nature of our business exposes us to significant liability claims, and our
insurance coverage may not be adequate to cover any future claims.

The use of our  compounds  in clinical  trials and any future sale exposes us to
liability claims which could be substantial. These claims might be made directly
by healthcare providers, medical personnel, patients, consumers,  pharmaceutical
companies and others selling or distributing  our compounds.  While we currently
have  product  liability  insurance  that we consider  adequate  for our current
business,  we may not be able to continue to obtain comparable  insurance in the
future at an acceptable  cost,  if at all. If for any reason we cannot  maintain
our existing or comparable liability  insurance,  our ability to clinically test
and market our products could be significantly  impaired.  Moreover,  the amount
and scope of our insurance coverage, as well as the indemnification arrangements
with third  parties upon which we rely,  may be  inadequate to protect us in the
event of a successful product liability claim. Any successful claim in excess of
our insurance  coverage  could  materially  and  adversely  affect our financial
condition and operating results.

The loss of key employees could adversely affect our operations.

We are  heavily  dependent  upon  the  talents  of  Dr.  Goldenberg,  our  Chief
Scientific Officer, Ms. Sullivan, our Chief Executive Officer, and certain other
key personnel. If Dr. Goldenberg, Ms. Sullivan or any of our other key personnel
were to unexpectedly  leave our company,  our business and results of operations
could be materially and adversely affected.  In addition,  as our business grows
we will  need to  continue  to  attract  additional  management  and  scientific
personnel.   Competition  for  qualified  personnel  in  the  biotechnology  and
pharmaceutical  industries  is  intense,  and we may  not be  successful  in our
recruitment efforts. If we are unable to attract,  motivate and retain qualified
professionals, our operations could be materially and adversely affected.


                                  Page 9 of 12



We are subject to certain covenants which place restrictions on the operation of
our business.

We are subject to contractual  covenants that provide that we may not enter into
certain  transactions without the prior consent of certain holders of our common
stock.  For example,  we may not sell our business to an affiliate  without such
approval  unless the sale is for  consideration  at least  equal to (a) the fair
market value of our company (as  determined  by our Board of  Directors)  in the
event of a sale of assets or (b) the then  current  market  price of our  common
stock in the event of a sale of stock. As a result of these covenants, we may be
unable to sell the company under  circumstances which you and other stockholders
would otherwise approve.

Our ability to achieve  significant  revenues from the sale of our products will
depend,  in part,  on the ability of  healthcare  providers  to obtain  adequate
reimbursement  from Medicare,  Medicaid,  private insurers and other health care
payers.

The continuing efforts of government and insurance companies, health maintenance
organizations  and other  payers of health care costs to contain or reduce costs
of health care may adversely  affect our future  revenues and ability to achieve
profitability.  Our ability to  successfully  commercialize  our future products
will depend,  in significant  part, on the extent to which health care providers
can obtain  appropriate  reimbursement  levels for the cost of our  products and
related treatment.  Third-party  payers are increasingly  challenging the prices
charged for diagnostic and therapeutic products and related services.  Also, the
trend towards managed health care in the United States and the concurrent growth
of  organizations  such as HMOs,  could control or  significantly  influence the
purchase  of  health  care  services  and  products.  In  addition,  legislative
proposals  to reform  health care or reduce  government  insurance  programs may
result in lower  prices or the actual  inability  of  prospective  customers  to
purchase our products. The cost containment measures that health care payers and
providers  are  instituting  and the  effect of any  health  care  reform  could
materially and adversely affect our ability to operate profitably.  Furthermore,
even if  reimbursement  is  available,  it may not be  available at price levels
sufficient for us to realize a positive return on our investment.

The  general  business  climate  is  uncertain  and we do not know how this will
impact our business.

Over the past 18 months, there have been dramatic changes in economic conditions
and the general  business climate has been negatively  impacted.  Indices of the
United States stock markets have fallen  precipitously,  and consumer confidence
has waned. Accordingly,  many economists theorize that the United States is in a
recession.  Compounding the general unease about the current business climate is
the still  unknown  economic  and  political  impact of the  September  11, 2001
terrorist  attacks and hostilities in Afghanistan.  We are unable to predict how
any of these factors may affect our business.


                                  Page 10 of 12



Risks Related to Our Common Stock

The market price of our stock is likely to continue to fluctuate widely based on
a number of factors, many of which are beyond our control.

The market price of our common stock has been,  and is likely to continue to be,
highly  volatile.  Furthermore,  the stock market  generally  and the market for
stocks of relatively small  biopharmaceutical  companies like us, have from time
to time  experienced  and likely  will again  experience  significant  price and
volume fluctuations that are unrelated to actual operating performance.

From time to time, stock market professionals  publish research reports covering
our business and future  prospects.  Due to a number of factors,  we may fail to
meet the  expectations  of securities  analysts or investors and our stock price
would likely decline as a result. These factors include:

o    announcements  by us, our partners or our competitors of clinical  results,
     technological   innovations,   product  sales,   new  products  or  product
     candidates;

o    the formation or  termination of our corporate  alliances and  distribution
     arrangements;

o    developments or disputes concerning our patent or other proprietary rights,
     and the issuance of patents in our field of business to others;

o    government regulatory action;

o    period-to-period fluctuations in the results of our operations; and

o    developments  and market  conditions  for  emerging  growth  companies  and
     biopharmaceutical companies, in general.

In the  past,  following  periods  of  volatility  in the  market  prices of the
securities of companies in our industry,  securities class action litigation has
often been instituted against those companies. If we face such litigation in the
future,  it would result in  substantial  costs and a diversion of  management's
attention and resources, which would negatively impact our business.

Our principal stockholder can significantly  influence all matters requiring the
approval by our stockholders.

As of December  31, 2001,  Dr.  Goldenberg,  our  Chairman and Chief  Scientific
Officer,  controlled the right to vote approximately  17.6% of our common stock.
As  a  result  of  this  voting  power,  Dr.   Goldenberg  has  the  ability  to
significantly  influence the outcome of  substantially  all matters which may be
put to a vote of our stockholders, including the election of our directors.

A  significant  number of our shares are eligible for resale which may lower the
market price of our common stock and impair our ability to raise new funds.

As of December 31, 2001, we had approximately  49,681,293 shares of common stock
outstanding,  8,181,249  of  which  were  held by our  directors  and  executive
officers.  These shares may be resold within the limitations imposed by Rule 144
under the Securities  Act. In addition,  we have an aggregate of up to 5,772,031
shares available for resale under a shelf registration  statement that was filed


                                  Page 11 of 12



for holders of our  securities on November 9, 1999. We also have, as of December
31, 2001,  2,552,750  shares  issuable  upon  exercise of stock options of which
1,205,500  were  exercisable  and 54,000  shares  issuable  upon the exercise of
warrants.  Sales of  substantial  amounts of shares of our common stock,  or the
mere prospect  that those sales will occur,  could cause the market price of our
common stock to decline. Those sales might make it more difficult for us to sell
equity and  equity-related  securities in the future at a time and price that we
consider appropriate.

We have adopted  anti-takeover  provisions  that may frustrate  any  unsolicited
attempt to acquire our company or remove or replace our  directors and executive
officers.

Provisions  of our  certificate  of  incorporation,  our  by-laws  and  Delaware
corporate law could make it more difficult for a third party to acquire  control
of our company in a  transaction  not  approved by our Board of  Directors.  For
example, we have adopted a stockholder rights plan which makes it more difficult
for a third party to acquire  control of our company  without the support of our
Board of  Directors.  In addition,  our Board of  Directors  may issue up to ten
million shares of preferred stock and determine the price,  rights,  preferences
and privileges,  including voting and conversion rights, of these shares without
any further vote or action by our stockholders.  The issuance of preferred stock
could have the effect of delaying, deterring or preventing an unsolicited change
in  control  of our  company,  or could  impose  various  procedural  and  other
requirements  that could make it more  difficult for holders of our common stock
to effect  certain  corporate  actions,  including the  replacement of incumbent
directors and the completion of  transactions  opposed by the incumbent Board of
Directors.  The rights of the  holders of our common  stock would be subject to,
and may be  adversely  affected  by, the rights of the holders of any  preferred
stock that may be issued in the future.

We are also  subject to Section 203 of the  Delaware  General  Corporation  Law,
which prohibits us from engaging in a business combination with any "interested"
stockholder  (as  defined in Section  203) for a period of three  years from the
date the person became an interested stockholder,  unless certain conditions are
met.

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