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 March 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 May 14, 2001, there were 49,525,371 shares of the registrant's common
stock outstanding.

                                  Page 1 of 17






                       IMMUNOMEDICS, INC. AND SUBSIDIARIES

                                      INDEX

                                                                    Page No.

PART I - FINANCIAL INFORMATION

Item 1.             Consolidated Financial Statements (Unaudited):

                  Consolidated Balance Sheets -                        3
                  March 31, 2001 and June 30, 2000

                  Consolidated Statements of Operations                4
                  and Comprehensive Income (Loss)-
                  three and nine months ended March 31, 2001 and 2000

                  Condensed Consolidated Statements of Cash Flows -    5
                  nine months ended March 31, 2001 and 2000

                  Notes to Consolidated Financial Statements -         6
                  March 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   15


PART II - OTHER INFORMATION

Item 6.  Exhibits and Reports on Form 8-K                              16


SIGNATURES                                                             17
- ----------

                                 Page 2 of 17





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

                                                                                   March 31,        June 30,
                                                                                     2001             2000
                                                                                -------------    -------------
                                                                                           

                                 ASSETS

 Current Assets:

     Cash and cash equivalents ..............................................   $  14,558,407    $  11,114,079
     Marketable securities ..................................................      41,031,114       29,751,987
     Accounts receivable, net of allowance for
       doubtful accounts of $67,898 and $63,398 at
       March 31, 2001 and June 30, 2000,  respectively ......................         622,168          603,398
     Inventory ..............................................................       1,303,106        1,036,900
     Other current assets ...................................................       1,109,730        1,324,093
                                                                                -------------    -------------
          Total current assets ..............................................      58,624,525       43,830,457

 Property and equipment, net of accumulated
       depreciation of $8,471,608 and $7,760,638 at
       March 31, 2001 and June 30, 2000,  respectively ......................       3,528,168        3,970,680

 Other long-term assets ......................................................        276,157          225,000
                                                                                -------------    -------------
                                                                                $  62,428,850    $  48,026,137
                                                                                =============    =============

                  LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:

     Current portion of long-term debt ......................................   $     111,343    $     158,058
     Accounts payable .......................................................       1,900,350        1,836,283
     Deferred revenue .......................................................       9,000,000             --
     Other current liabilities ..............................................       1,828,342        1,683,266
                                                                                -------------    -------------
          Total current liabilities .........................................      12,840,035        3,677,607
                                                                                -------------    -------------

 Long-term debt ..............................................................           --             70,412

 Deferred revenue ............................................................      7,500,000             --

 Minority interest ...........................................................        182,000          182,000


 Commitments and Contingencies
 Stockholders' Equity:
     Preferred stock; $.01 par value, authorized 10,000,000 shares; .........            --               --
     Common stock; $.01 par value, authorized 70,000,000 shares;
          issued and outstanding 49,525,371 and 49,329,121 shares
          at March 31, 2001 and June 30, 2000,  respectively ................         495,254          493,291
     Capital contributed in excess of par ...................................     155,062,655      153,242,000
     Accumulated deficit ....................................................    (113,743,073)    (109,530,489)
     Accumulated other comprehensive income (loss) ..........................          91,979         (108,684)
                                                                                -------------    -------------
          Total stockholders' equity ........................................      41,906,815       44,096,118
                                                                                -------------    -------------
                                                                                $  62,428,850    $  48,026,137
                                                                                =============    =============

            See accompanying notes to consolidated financial statements

                                  Page 3 of 17






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


                                                             Three Months Ended                          Nine Months Ended
                                                                  March 31,                                  March 31,
                                                          2001               2000                    2001               2000

                                                    ----------------   ----------------        ----------------   -----------------
                                                                                                      
Revenues:
     Product sales                                      $   753,121       $  1,225,557            $  2,925,459        $  3,284,779
     Royalties and license fee                            1,503,160              5,523               1,506,807              11,094
     Research and development                               134,393            181,853                 435,697             506,335
     Interest and other                                     783,709            346,180               2,072,658             555,661
                                                    ----------------   ----------------        ----------------   -----------------
                                                          3,174,383          1,759,113               6,940,621           4,357,869
                                                    ----------------   ----------------        ----------------   -----------------

Costs and Expenses:
     Cost of goods sold                                      56,603             57,332                 419,413             195,216
     Research and development                             2,536,522          2,670,957               7,342,244           6,762,815
     Sales and marketing                                    598,528            753,911               1,929,548           2,343,215
     General and administrative                             822,171          1,032,553               2,265,315           1,984,555
                                                    ----------------   ----------------        ----------------   -----------------
                                                          4,013,824          4,514,753              11,956,520          11,285,801
                                                    ----------------   ----------------        ----------------   -----------------
Net loss before income tax benefit                         (839,441)        (2,755,640)             (5,015,899)         (6,927,932)

Income tax benefit                                          803,315                  -                 803,315                   -
                                                    ----------------   ----------------        ----------------   -----------------
Net loss                                                    (36,126)        (2,755,640)             (4,212,584)         (6,927,932)

Preferred stock dividends                                         -                  -                       -             496,684
                                                    ----------------   ----------------        ----------------   -----------------
Net loss allocable to common shareholders                   (36,126)        (2,755,640)             (4,212,584)         (7,424,616)
                                                    ================   ================        ================   =================

Comprehensive Income (Loss):
     Net loss                                               (36,126)        (2,755,640)             (4,212,584)         (6,927,932)
                                                    ----------------   ----------------        ----------------   -----------------
    Other comprehensive income (loss), net of tax:

         Foreign currency translation adjustments           (39,612)          (133,074)                (25,925)            (98,424)
         Unrealized gain (loss) on securities
           available for sale                               122,134            (25,438)                226,588             (25,438)
                                                    ----------------   ----------------        ----------------   -----------------
    Other comprehensive income (loss)                        82,522           (158,512)                200,663            (123,862)
                                                    ----------------   ----------------        ----------------   -----------------
Comprehensive income (loss)                             $    46,396       $ (2,914,152)           $ (4,011,921)       $ (7,051,794)
                                                    ================   ================        ================   =================
Per Share Data (Basic and Diluted):
     Net loss allocable to common shareholders              $ (0.00)           $ (0.06)                $ (0.09)            $ (0.18)
                                                    ================   ================        ================   =================
Weighted average number of common
   shares outstanding                                    49,521,082         47,811,205              49,488,699          42,219,357
                                                    ================   ================        ================   =================


           See accompanying notes to consolidated financial statements.

                                  Page 4 of 17





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


                                                                          Nine Months Ended
                                                                              March 31,
                                                                    2001                       2000
                                                            ------------------         ----------------
                                                                                 

Cash flows from operating activities:

      Net loss                                                   $ (4,212,584)             $(6,927,932)

Adjustments to reconcile net loss to net cash provided by (used in)
operating activities:

      Depreciation                                                    710,970                  734,379
      Provision for allowance for doubtful accounts                     4,500                   18,000
      Amortization of bond premium                                     74,065                        -
      Non-cash expense relating to issuance of warrants               508,991                  517,374
      Compensation expense on stock options                            88,700                        -
      Deferred revenue                                             16,500,000                        -
      Changes in operating assets and liabilities                      82,873                 (174,360)
      Other                                                           (25,925)                (131,990)
                                                            ------------------         ----------------

          Net cash provided by (used in) operating activities      13,731,590               (5,964,529)
                                                            ------------------         ----------------

Cash flows from investing activities:

     Purchases of marketable securities                           (45,133,471)             (32,269,131)
     Proceeds from maturities of marketable securities             34,006,867               12,856,504
     Additions to property and equipment                             (268,458)                 (91,456)
                                                            ------------------         ----------------

          Net cash used in investing activities                   (11,395,062)             (19,504,083)
                                                            ------------------         ----------------

Cash flows from financing activities:

     Issuance of common stock, net                                          -               42,659,739
     Purchase of preferred stock, net                                       -               (5,950,000)
     Preferred stock dividends paid                                         -                 (535,500)
     Exercise of stock options                                      1,224,927                3,421,020
     Payments of debt                                                (117,127)                (106,529)
                                                            ------------------         ----------------

          Net cash provided by financing activities                 1,107,800               39,488,730
                                                            ------------------         ----------------

Increase in cash and cash equivalents                               3,444,328               14,020,118

Cash and cash equivalents at beginning of period                   11,114,079                3,469,261
                                                            ------------------         ----------------

Cash and cash equivalents at end of period                       $ 14,558,407             $ 17,489,379
                                                            ==================         ================



            See accompanying notes to consolidated financial statements.

                                  Page 5 of 17




                       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 management,  all adjustments
     (consisting of normal recurring accruals)  considered  necessary for a fair
     presentation  have been  included.  The balance  sheet at June 30, 2000 has
     been derived from the audited financial  statements at that date. Operating
     results for the nine-month  period ended March 31, 2001 are not necessarily
     indicative  of the results  that may be expected for the fiscal year ending
     June 30, 2001 or any other period.

     The  Company has not yet  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 operations are dependent
     on,  among other  things,  the success of the  Company's  commercialization
     efforts and market acceptance of the Company's products.

     Since its inception  in  1982,  the  Company's  source  of  funds  has been
     primarily  dependent on private and public offerings of equity  securities,
     revenues  from  research and  development  alliances,  product  sales and a
     license and development  agreement.  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  financial  statements  and
     footnotes  thereto included in the Company's Annual Report on Form 10-K for
     the fiscal year ended June 30, 2000.

(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 March 31, 2001 and June
     30, 2000 is accrued  interest  earned on cash  equivalents  and  marketable
     securities of $542,900 and $423,300, respectively.

(3)  Income Taxes

     The Company has never made payments of Federal or State income taxes and to
     date has not generated  book income;  therefore,  no income taxes have been
     reflected for the nine-month  period ended March 31, 2001. During the third
     quarter 2001, the Company recorded a tax benefit of $803,315 as a result of
     its sale of  approximately  $10,106,000  of New Jersey state net  operating
     losses.

                                  Page 6 of 17





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


 (4) Net Loss Per Share

     Basic and diluted net loss allocable to common shareholders is based on the
     net loss for the  relevant  period,  adjusted in the fiscal year ended June
     30, 2000 for Preferred  Stock  dividends,  divided by the weighted  average
     number of shares issued and outstanding during the period.  Preferred Stock
     dividends for the three and  nine-month  periods ended March 31, 2000 is $0
     and $496,684, respectively. For the nine-month period ended March 31, 2000,
     Preferred Stock dividends  consisted of $199,184  related to a 4% per annum
     stated value  increase in security and a $297,500  premium paid in December
     1999 in  connection  with the  redemption of Series F Preferred  Stock.  No
     Preferred  Stock  dividends  have been incurred since the redemption of the
     Series F Preferred  Stock in December 1999. For purposes of the diluted net
     loss per share  calculations,  the exercise or  conversion of all potential
     common  shares  is not  included  because  their  effect  would  have  been
     anti-dilutive, due to the net loss recorded for the periods ended March 31,
     2001 and 2000. The Company has certain securities  outstanding at March 31,
     2001 that could  potentially  dilute basic earnings per share in the future
     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.

(5)  Comprehensive Income (Loss)

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

(6)  Recently Issued Accounting Standards

     In June 1998,  SFAS No. 133,  Accounting  for  Derivative  Instruments  and
     Hedging Activities was issued and, as amended,  is effective for all fiscal
     years  beginning  after  June 15,  2000.  SFAS  No.  133  standardizes  the
     accounting  for  derivative   instruments   including  certain   derivative
     instruments embedded in other contracts and requires derivative instruments
     to be  recognized  as assets and  liabilities  and to be  recorded  at fair
     value. The Company is currently not a party to any derivative  instruments.
     Any future transactions  involving derivative instruments will be evaluated
     based on SFAS No. 133.

 (7) 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 March 31, 2001, the inventory balance consisted
     of $217,528 of raw materials and $1,085,578 of finished  goods. At June 30,
     2000,  the  inventory  balance  consisted of $373,234 of raw  materials and
     $663,666 of finished goods.

                                  Page 7 of 17



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

(8)  Stockholders' Equity

     At the Company's  Annual Meeting of  Stockholders  on December 6, 2000, the
     stockholders of the Company  approved an amendment to the 1992 Stock Option
     Plan to authorize an additional five million shares of Common Stock.

     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
     $509,000  for the  nine-month  period  ended March 31,  2001,  based on the
     estimated  value of the  warrants  as of the vesting  date of December  16,
     2000.

(9)  Debt

     On October  28,  1998,  the Company  entered  into an  Equipment  Financing
     Agreement with the New England Capital  Corporation,  pursuant to which the
     Company has received $450,000,  at the interest rate of 9.52% per annum, to
     be repaid over a 36-month period.  The proceeds of such financing were used
     to exercise the early  purchase  options for  equipment  previously  leased
     through a master  lease  agreement.  The  financing  is  secured by various
     equipment  and an  irrevocable  letter of credit in the amount of $225,000.
     The letter of credit is  collateralized  by a cash deposit of an equivalent
     amount which is included in "Other  long- term assets" on the  accompanying
     consolidated  balance sheet. At March 31, 2001, the Company's  indebtedness
     under this agreement was $111,343 due in equal installments over the next 8
     months. The Company paid $3,286 and $6,903 for the three-month  periods and
     $12,646  and $23,245 for the  nine-month  periods  ended March 31, 2001 and
     2000, respectively, in interest under this agreement.

(10) 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 U.S.  and  throughout
     Europe.

     The following tables present financial  information based on the geographic
     location of the  facilities of  Immunomedics,  Inc. as of and for the three
     and nine-month periods ended March 31, 2001 and 2000:

                               Page 8 of 17





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




         Three Months Ended
                                 March 31, 2001

                                         United States                    Europe                     Total
                                         -------------                    ------                 ----------
                                                                                       
         Revenues                         $2,612,309                     $562,074                $3,174,383
         Net income (loss)                  (283,876)                     247,750                   (36,126)

                                 March 31, 2000

                                         United States                    Europe                     Total
                                         -------------                    ------                 ----------
         Revenues                         $1,086,138                     $672,975                $1,759,113
         Net income (loss)                (2,936,717)                     181,077                (2,755,640)



         Nine Months Ended
                                 March 31, 2001

                                         United States                    Europe                     Total
                                         -------------                    ------                 ----------
         Revenues                         $5,055,286                   $1,885,335                $6,940,621
         Net income (loss)                (4,953,115)                     740,531                (4,212,584)

                                 March 31, 2000

                                         United States                  Europe                       Total
                                         -------------                  ------                   ----------
         Revenues                         $2,485,513                   $1,872,356                $4,357,869
         Net income (loss)                (7,350,999)                     423,067                (6,927,932)



(11) Development and License Agreement with Amgen

     On  December  17,  2000,  the  Company  signed a  Development  and  License
     Agreement  with Amgen Inc. The 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
     Agreement,  the Company  received an up-front  payment of $18 million  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
     million 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  $1,500,000 as royalties
     and license fee revenue for the current quarter.  The remaining  balance of
     $16,500,000  is  recorded  as  "Deferred  revenue",   of  which  $9,000,000

                              Page 9 of 17



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



     is part of current liabilities and $7,500,000 is in the long-term liability
     section of the accompanying consolidated balance sheet at March 31, 2001.






























                             Page 10 of 17






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

Overview

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-Business Risks" in the Company's
Annual  Report on Form 10-K for the fiscal  year ended June 30,  2000 (the "2000
10-K"),  (iii) the risks described elsewhere under the caption "Business" in the
2000 10-K and (iv) the risks  described  elsewhere in the 2000 10-K. The Company
assumes no obligation to update its forward-looking statements.

Since its inception,  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  infectious
diseases.  The Company  has  incurred  significant  operating  losses  since its
formation in 1982 and through the quarter ended March 31, 2001, had not earned a
profit since its inception.  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 March 31,  2001,  the Company had an
accumulated  deficit  of  approximately  $113,743,000.  The  Company  expects to
continue to experience  operating  losses,  exclusive of any license fees, until
such time, if at all, that it is able to generate sufficient revenues from sales
of CEA-Scan(R), LeukoScan(R) and its other potential products.

On June 28,  1996,  the  U.S.  Food and  Drug  Administration  ("FDA")  licensed
CEA-Scan for use with other standard diagnostic  modalities for the detection of
recurrent and/or metastatic  colorectal cancer. On October 4, 1996, the European
Commission  granted  marketing  authorization  for use of this product in the 15
countries  comprising the European Union for the same  indication.  On September
16, 1997, the Company received a notice of compliance from the Health Protection
Branch ("HPB")  permitting it to market CEA-Scan in Canada for colorectal cancer
for recurrent and metastatic colorectal cancer.

On  February  14,  1997,  the Company  was  granted  regulatory  approval by the
European  Commission  to  market  LeukoScan(R),  an in vivo  infectious  disease
diagnostic  imaging  product,  in all 15  countries  which  are  members  of the
European  Union,  for  the  detection  and  diagnosis  of  osteomyelitis   (bone
infection)  in long bones and in diabetic foot ulcer  patients.  On December 19,
1996, the Company filed a Biologics License  Application,  or BLA, for LeukoScan
with the FDA for the same  indication  approved  in Europe,  plus an  additional
indication  for the diagnosis of acute,  atypical  appendicitis.  As part of the
review  process,  the  Company is in  discussions  with the FDA to  address  its
comments  regarding the adequacy of the Company's data to support final approval
for these indications. Consistent with the Company's decision to focus primarily
on cancer  therapeutic  products,  on April 12, 2000,  the Company  withdrew the
CEA-Scan breast cancer imaging application  submitted on January 26, 1999 to the

                             Page 11 of 17




European Medicines Evaluation Agency (EMEA). A New Drug Submission for LeukoScan
for the same  indications  as in the U.S.  was  filed  with the HPB in Canada on
March 24,  1998.  The Company  also has decided  not to  continue  pursuing  the
broadening  of its  approval  for  LeukoScan  in Europe to  include  the  acute,
atypical  appendicitis  indication,  but has  instead  published  its  Phase III
efficacy data.

On December 17, 2000,  the Company  signed a Development  and License  Agreement
with Amgen Inc.  The  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  Agreement,  the
Company  received an up-front  payment of $18 million  from Amgen on February 1,
2001. Also,  pursuant to the Agreement,  the Company could  potentially  receive
clinical  milestone  payments totaling $65 million.  In addition,  the Agreement
provides for royalties on net sales and for one-time  sales  milestone  payments
ranging from $50 to $225 million if and when annual net sales reach $500 million
to $1 billion.  Additional compensation would be payable to the Company for each
second  generation  product developed by Amgen. No assurances can be given as to
whether any applicable  milestones  will be met or with respect to the aggregate
amount that will be paid to the Company under this Agreement.

CEA-Scan  and  LeukoScan  are the only  products  which the Company is currently
licensed to market and sell.  To date,  the Company has  received  only  limited
revenues from the sale of these  products.  There can be no assurance that these
products will achieve market acceptance or generate  significant  sales.  Unless
the Company receives substantial  revenues from these products,  future revenues
will be  dependent  in large part upon its  receiving  payments  from  corporate
partners under licensing and research  agreements (such as the Amgen development
and license  agreement)  or from  government  grants.  However,  there can be no
assurance  that the Company will receive such payments  (beyond the payment made
to date under the Amgen agreement) in a timely manner, or at all.

The Company is also  engaged in  developing  other  biopharmaceutical  products,
which are in various stages of development and clinical testing.

The Company has  developed  and filed an  Investigational  New Drug  application
("IND")  for two other in vivo  cancer  imaging  products:  AFP-Scan(R)  for the
detection and  diagnosis of liver and germ cell  cancers,  currently in Phase II
clinical trials,  and  LymphoScan(TM) for diagnosis and staging of non-Hodgkin's
lymphomas, currently in Phase III clinical trials.

Results of Operations

Revenues  for the  nine-month  period  ended March 31, 2001 were  $6,941,000  as
compared to $4,358,000 for the same period in 2000,  representing an increase of
$2,583,000.  Product  sales for the  nine-month  period  ended  March  31,  2001
decreased  by  $360,000  as  compared  to the same  period of 2000,  principally
reflecting the Company's focus towards the development of therapeutic  products.
Royalties and license fee revenue for the nine-month period ended March 31, 2001
increased by $1,496,000 as compared to the same period of 2000, primarily due to
recognition of a portion of the up-front  payment  received in conjunction  with
the development and license  agreement with Amgen in the amount of $1.5 million.
Research and development  revenue for the nine-month period ended March 31, 2001
decreased by $71,000 as compared to same period of 2000,  primarily due to lower
grant revenue.  Interest and other income for the nine-month  period ended March
31,  2001  increased  by  $1,517,000,  as  compared  to the same period of 2000,

                             Page 12 of 17





primarily due to more cash available for investments as a result of infusions of
private  equity  capital  during  fiscal  2000 and the  up-front  payment of $18
million from Amgen in February 2001.

Revenues  for the  three-month  period ended March 31, 2001 were  $3,174,000  as
compared to $1,759,000 for the same period in 2000,  representing an increase of
$1,415,000.  Product  sales for the  three-month  period  ended  March 31,  2001
decreased  by  $472,000  as  compared  to the same  period of 2000,  principally
reflecting the Company's focus towards the development of therapeutic  products.
Royalties  and license fee revenue for the  three-month  period  ended March 31,
2001  increased by $1,498,000 as compared to the same period of 2000,  primarily
due to recognition of a portion of the up-front  payment received in conjunction
with the  development  and  license  agreement  with Amgen in the amount of $1.5
million. Research and development revenue for the three-month period ended March
31, 2001 decreased by $47,000 as compared to same period of 2000,  primarily due
to lower grant  revenue.  Interest and other income for the  three-month  period
ended March 31, 2001  increased by  $438,000,  as compared to the same period of
2000,  primarily  due to more  cash  available  for  investments  as a result of
infusions of private equity capital during fiscal 2000 and the up-front  payment
of $18 million from Amgen in February 2001.

Total  operating  expenses for the  nine-month  period ended March 31, 2001 were
$11,957,000 as compared to $11,286,000 for the same period in 2000, representing
an increase of  $671,000.  Research  and  development  costs for the  nine-month
period ended March 31, 2001 increased by $579,000 as compared to the same period
in 2000,  primarily due to increased  research and development and manufacturing
expenses, including lab supplies, associated with producing therapeutic products
to be used in clinical trials.  Sales and marketing  expenses for the nine-month
period  ended  March  31,  2001,  decreased  by  $414,000  primarily  due to the
Company-wide reorganization/restructuring. Cost of goods sold for the nine-month
period ended March 31, 2001 increased by $224,000 as compared to the same period
in 2000, primarily due to reserves recorded for previously capitalized inventory
due to approaching  expiration dates.  General and administrative  costs for the
nine-month  period ended March 31, 2001 increased by $281,000 as compared to the
same period of 2000,  primarily due to the recognition of an expense of $360,000
as a fee, for a financial  advisor,  associated with the Company's entering into
the Licensing  and  Development  Agreement  with Amgen (see Note 11 to Unaudited
Consolidated  Financial  Statements),  partially  offset by a decrease  of other
administrative expenses.

Total operating  expenses for the  three-month  period ended March 31, 2001 were
$4,014,000 as compared to $4,515,000  for the same period in 2000,  representing
an increase of $501,000.  Research  and  development  costs for the  three-month
period ended March 31, 2001 decreased by $134,000 as compared to the same period
in  2000,  primarily  due to the  capitalization  of  finished  goods  inventory
partially  offset  by  increased  manufacturing  expenses,  including  supplies,
associated with producing such products.  Cost of goods sold for the three-month
period ended March 31, 2001 were  essentially  unchanged as compared to the same
period in 2000.  Sales and marketing  expenses for the three-month  period ended
March 31,  2001  decreased  by  $155,000 as compared to the same period in 2000,
primarily due to reduced expenses in Europe.  General and  administrative  costs
for the  three-month  period  ended  March 31,  2001  decreased  by  $210,000 as
compared  to the same period of 2000,  primarily  due to the  recognition  of an
expense of $517,000 for the three-month period ended March 31, 2000,  associated
with  warrants  issued to a financial  advisor in  December  1999 (see Note 8 to
Unaudited  Consolidated  Financial  Statements)  as  compared  to an  expense of
$360,000  for the  three-month  period  ended  March  31,  2001,  as a fee for a

                             Page 13 of 17




financial advisor, associated with the Company's entering into the Licensing and
Development  Agreement  with  Amgen  (see  Note  11  to  Unaudited  Consolidated
Financial Statements).

Net loss allocable to common  shareholders for the nine-month period ended March
31, 2001 was $4,213,000, or $0.09 per share, as compared to $7,425,000, or $0.18
per share, for the same period in 2000. The $3,212,000  decrease in the net loss
allocable to common  shareholders  in 2001 as compared to 2000 was primarily due
to the Company's increased revenues principally from interest on investments and
the  recognized  portion of the Amgen fee,  the income tax  benefit of  $803,315
related  to the  sale of  approximately  $10,106,000  of New  Jersey  state  net
operating  losses and the Company's not incurring any preferred  stock dividends
during the nine-month  period ended March 31, 2001,  partially  offset by higher
operating  expenses.  In  addition,  the net loss per share  allocable to common
shareholders  for the  nine-month  period  ended March 31,  2001 was  positively
impacted by the higher weighted average number of common shares  outstanding for
this  period,  as  compared  to the same  period in 2000.  The  increase  in the
weighted  average  number  of  shares  outstanding  was  primarily  due  to  the
conversion in late calendar year 2000 of the Company's  Series F Preferred Stock
and the issuance of Common Stock  pursuant to the  Company's  equity  financings
during fiscal year 2000.

Net loss allocable to common shareholders for the three-month period ended March
31, 2001 was $36,000,  or $0.00 per share,  as compared to $2,756,000,  or $0.06
per share,  for the same period in 2000. The 2,720,000  decrease in the net loss
allocable to common  shareholders  in 2001 as compared to 2000 was primarily due
to the  Company's  increased  revenues,  decreased  expenses  and the income tax
benefit of  $803,315  related to the sale of  approximately  $10,106,000  of New
Jersey state net operating  losses.  The net loss per share  allocable to common
shareholders  for the  three-month  period  ended March 31, 2001 was  positively
impacted by the higher  weighted  average number of shares  outstanding for this
period,  as compared to the same period in 2000.  The  increase in the  weighted
average number of shares outstanding was primarily due to the issuance of Common
Stock pursuant to the Company's equity financings during fiscal year 2000.

Liquidity and Capital Resources

At March 31,  2001,  the  Company  had  working  capital of  $45,784,000,  which
represents an increase of $5,632,000 from June 30, 2000. The increase in working
capital  resulted  primarily from the up-front  payment of $18 million  received
from the Amgen  development  and  license  agreement  (see Note 11 to  Unaudited
Consolidated  Financial  Statements),  partially  offset by funding of operating
expenses as discussed above.

The Company's liquid asset position,  measured by its cash, cash equivalents and
marketable  securities,  was  $55,590,000  at March 31,  2001,  representing  an
increase  of  $14,724,000  from  June 30,  2000.  This  increase  was  primarily
attributable  to the  up-front  payment of $18 million  received  from the Amgen
development  and  license  agreement  (see  Note  11 to  Unaudited  Consolidated
Financial  Statements),  partially  offset by funding of  operating  expenses as
discussed  above.  It  is  anticipated  that  working  capital  and  cash,  cash
equivalents  and  marketable  securities  will decrease  during the remainder of
fiscal  year  2001  as a  result  of  planned  operating  expenses  and  capital
expenditures.  There can be no assurance  as to the amount of revenues,  if any,
that product sales will provide during the remainder of the current fiscal year.

On May 19,  2000,  the Company  gave notice to its  landlord  that it desired to
exercise its right to purchase the facilities which the Company presently leases

                             Page 14 of 17




at 300 American Road, Morris Plains, New Jersey (see "Properties"). The purchase
price under the lease is approximately  $6.5 million.  The Company plans to seek
mortgage  financing  with  respect to this  purchase.  If such  financing is not
available to the Company on acceptable  terms prior to the closing,  the Company
would expect to fund the purchase price on an interim basis from its own capital
resources  and would then likely  seek to mortgage  the  acquired  premises.  No
assurances  can be  given  that the  Company  will be able to  secure  favorable
financing either before or after the purchase of these facilities.

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 and selling products, 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.
Unless  there is a  significant  increase in product  revenues,  the Company may
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 proposed products and regulatory  filings
for new  indications  of existing  products.  There can be 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.


Item 3.  Quantitative and Qualitative Disclosures About Market Risks

See Item 7A of the Company's Annual Report on Form 10-K for the year ended
June 30, 2000.

                             Page 15 of 17




PART II

Item   6. Exhibits and Reports on Form 8-K

          (a) Exhibits

                 99       Risk Factors





















                             Page 16 of 17






                                   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: May 14, 2001                          /s/ Cynthia L. Sullivan
                                           -------------------------------

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









DATE: May 14, 2001                         /s/ Shailesh R. Asher
                                           --------------------------

                                             Shailesh R. Asher
                                             Controller and Acting Chief
                                             Financial Officer
                                             (Principal Financial and
                                              Accounting Officer)





                                  Page 17 of 17



Exhibit 99

RISK FACTORS

Certain  statements in this Quarterly Report on Form 10-Q and certain statements
made by the Company in other published documents (including, without limitation,
press  releases)  are  forward-looking  in  nature  and,  as  such,   constitute
"forward-looking  statements" under the Private Securities Litigation Reform Act
of 1995.  These  forward-looking  statements  include,  but are not  limited to,
statements  about the Company's plans,  objectives,  expectations and intentions
and  other  statements  contained  in this  Quarterly  Report  on  Form  10-Q or
elsewhere that are not historical  facts.  When used in this Quarterly Report on
Form 10-Q or elsewhere, the words "expects,"  "anticipates," "intends," "plans,"
"believes,"  "seeks" and  "estimates"  and  similar  expressions  are  generally
intended to identify forward-looking  statements.  Because these forward-looking
statements  involve risks and  uncertainties,  there are important  factors that
could cause actual results to differ  materially from those expressed or implied
by these  forward-looking  statements.  In other words, our performance might be
quite different from what the  forward-looking  statements  imply. The following
factors, as well as those discussed below in this "Risk Factors" section,  could
cause our performance to differ from the implied results:

     *    inherent  uncertainties  accompanying  the  marketing  of CEA-Scan and
          LeukoScan.

     *    inherent uncertainties involving new product development and
          marketing.

     *    inability  to obtain  capital  for  continued  product  development
          and commercialization.

     *    actions of regulatory authorities concerning product approval.

     *    actions of government and private organizations  concerning
          reimbursement of medical expenses.

     *    impact of competitive products and pricing.

     *    results of clinical trials.

     *    loss of key employees.

     *    changes in general economic and business conditions.

     *    changes in industry trends.

We have no obligation to release  publicly the result of any revisions to any of
our  "forward-looking  statements" to reflect events or circumstances that occur
after the date of this  Quarterly  Report or to reflect the  occurrence of other
unanticipated events.

                                  Page 1 of 10



We Have a History of Operating Losses and May Never Become Profitable

We have had  significant  operating  losses since our formation in 1982 and have
not earned a profit since our inception.  These operating  losses and failure to
be profitable  have been due mainly to the  significant  amount of money that we
have had to spend on research and  development.  As of March 31, 2001, we had an
accumulated  deficit of approximately  $113.7 million.  We expect to continue to
experience  operating  losses  until such time,  if at all,  that we are able to
generate sufficient revenues from sales of CEA-Scan(R),  LeukoScan(R) and/or our
other potential products.

We May Not Be Able to Successfully Develop a Market for Our Approved Products

CEA-Scan and LeukoScan are the only products which we are licensed to market and
sell. To date,  we have  received  only limited  revenues from the sale of these
products.  We cannot assure investors that these products or any of our proposed
products will achieve market acceptance or generate significant sales.

We May Not Receive  Approval to Sell  LeukoScan in the United States in a Timely
Manner

We have not yet received  approval from the FDA to market and sell  LeukoScan in
the United States and cannot assure  investors as to when, if ever, that we will
obtain approval.  In addition,  the FDA could impose conditions on its approval,
which could  significantly  affect the  commercial  viability  of the product or
could require us to undertake significant additional studies or otherwise expend
additional  significant  funds. If we do not receive approval to market and sell
LeukoScan  in the  United  States  in the  near  future  or if the  FDA  imposes
significant  conditions or  restrictions,  our business and operations  could be
significantly and adversely affected.

We May Not Be Able to Bring to Market the Products We Are  Currently  Developing
or Sustain their Sales After Approval

Before any of our products that we are currently developing can be marketed and
sold, we must undertake substantial research and development. All new products
face a high degree of uncertainty, including the following:

*    We may not receive regulatory approval to perform human clinical trials for
     the products we currently have planned or we may be unable to  successfully
     complete our ongoing clinical trials.

*    The  results  from  preclinical  studies  and  clinical  trials  may not be
     indicative of results that will be obtained in later-stage testing.

*    We may be unable to timely recruit a sufficient  number of patients for our
     clinical  trials.  Delays  in  planned  patient  enrollment  may  result in
     increased costs and delays.

*    We may be unable to obtain  approval  from the FDA and  comparable  foreign
     authorities  because we are unable to demonstrate  that the product is safe
     and effective for the intended  use, or obtaining  regulatory  approval may
     take  significantly  more time and cost  significantly  more  money than we
     currently anticipate.

                                  Page 2 of 10




*    We may discover that the product has undesirable or unintended side effects
     or other characteristics that make it impossible or impracticable for us to
     continue development or which may limit the product's commercial use.

*    We do not expect that any new product  which is  currently  in research and
     development will be commercially available for at least several years.

*    We may be unable  to  produce  the  product  in  commercial  quantities  at
     reasonable cost.

*    We may  be  unable  to  successfully  market  the  product  or to  find  an
     appropriate corporate partner, if necessary,  to assist us in the marketing
     of the product.

*    The product may not gain satisfactory market acceptance.

*    The product may be superseded  by another  product  commercialized  for the
     same  indication  or may  infringe  patents  issued to others,  which would
     prevent us from marketing and selling the product.

*    After  approval,  the product may be recalled or withdrawn at any time as a
     result  of  regulatory  issues,   including  those  concerning  safety  and
     efficacy.

If we are  unable to  continue  to  develop  products  that we can  successfully
market,  our business,  financial  condition  and results of operations  will be
significantly and adversely affected.

If We Do Not Obtain  Additional  Capital  When  Needed,  We May Be  Required  to
Curtail Our Operations

When our needs for cash deplete our existing capital position, we will be
required to significantly reduce our operating expenses, including the amount of
resources devoted to marketing and sales, product development and clinical
trials, which could have a significant and adverse effect on us. We cannot
assure investors that any additional financing will be available to us at all or
on terms we find acceptable or that the terms of any financing will not cause
substantial dilution to our existing stockholders.

Our Limited  Marketing  and Sales  Experience  and  Capability  Could Impact Our
Ability to Successfully Sell Our Current Products

We are relying,  in  substantial  part,  on our own limited  sales and marketing
organization to market CEA-Scan and LeukoScan.  We cannot assure  investors that
we can  successfully  maintain and continue to build our sales force.  If we are
unable  to  continue  to build  and  maintain  our sales  force,  our  financial
condition and operating results may be significantly and adversely affected.

                                  Page 3 of 10




We May Have to Rely on  Partners to Help Us Market and Sell Our  Products  Under
Development

The  marketing  and sale of our  proposed  products  may be  dependent  upon our
entering into arrangements with corporate  partners,  such as our agreement with
Amgen.  We  cannot  assure  investors  that  we will be  successful  in  forming
relationships   other   than  our   relationship   with   Amgen  or  that  these
relationships, even if formed, will be successful.

We Could Be Temporarily  Unable to Sell Our Products If Our Agreements  with Our
Distributors Were Terminated

We currently do not have the  resources to  internally  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 terminated,  we will be required to
enter into arrangements with other government approved third parties in order to
be able to distribute our products.  We will be unable to continue 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
significantly and adversely effected.

We Could Be  Temporarily  Unable to Sell Our Products If Our Agreement  with Our
End Stage Manufacturer Was Terminated

We rely on a single  third party to perform  certain  end-stage  portions of the
manufacturing  process for CEA-Scan and LeukoScan  which we are unable or do not
have the resources to perform.  If this third party were to become  unavailable,
we would be unable to complete the  manufacturing  process until we entered into
an agreement with another  qualified  entity.  We cannot give assurances that we
will be able to negotiate an agreement  with another entity on terms we consider
acceptable,  if at all. Even if we were able to do so, any substantial  delay in
our ability to manufacture our products could significantly and adversely affect
our operations.

Our Internal Manufacturing Capability May Limit What We Can Sell

If demand for our approved  product  increases  significantly,  we cannot assure
investors that we will continue to have the capacity to  manufacture  commercial
quantities successfully.  In addition, if any of our other products are approved
for marketing and sale, we cannot assure investors that we will continue to have
the capacity and  expertise to  manufacture  commercial  quantities  of multiple
products  successfully or with acceptable  profit margins.  If we were even only
temporarily unable to manufacture  sufficient quantities of our products to meet
demand, our business could be significantly and adversely effected.

We May Be Unable to Continue to Use Mouse Fluids for Future Products Which Could
Require Us to Make  Expensive  and Time  Consuming  Changes to Our  Products  in
Development

CEA-Scan and certain of our other imaging  agents are derived from ascites fluid
produced in mice. Regulatory authorities, particularly in Europe, have expressed
concerns  about  the  use  of  mice  fluid  for  the  production  of  monoclonal
antibodies.  We cannot assure  investors that regulatory  authorities will agree

                                  Page 4 of 10




that our quality control procedures will be adequate for future products.  While
we are continuing our  development  efforts to produce certain of our monoclonal
antibodies  using cell culture methods,  this process  constitutes a substantial
production change, which will require additional manufacturing equipment and new
regulatory approval.  We cannot assure investors that we will have the resources
to acquire the additional  manufacturing equipment and resources or that we will
receive the required  regulatory  approval on a timely basis, if at all. We also
have contracted with a third party for the development and production of certain
humanized  antibodies,   but  we  cannot  assure  that  these  efforts  will  be
successful.

Certain  Potential  Conflicts  of Interest  Exist with The Center for  Molecular
Medicine and Immunology Which Could Affect Our Operations

Dr.  David M.  Goldenberg,  our  Chairman and Chief  Executive  Officer,  is the
founder,  President  and a member of the Board of  Trustees  of the  Center  for
Molecular  Medicine and Immunology  ("CMMI"),  a not-for-profit  cancer research
center. Dr. Goldenberg devotes more of his time working for CMMI than for us. In
addition,  other key personnel currently have  responsibilities both to CMMI and
us. As a result,  the  potential  for  conflict of interest  exists and disputes
could  arise  over  the  allocation  of  research   projects  and  ownership  of
intellectual property rights.

We May Not Be Able to Obtain Government  Regulatory  Approval in a Timely Manner
to Market and Sell Our Products

Regulation  by  governmental  authorities  in  the  United  States  and  foreign
countries  is a  significant  factor in the  manufacture  and  marketing  of our
presently marketed and proposed products as well as our research and development
activities.  All of our proposed  products will require  regulatory  approval by
governmental  agencies prior to commercialization  and our products must undergo
rigorous   preclinical  and  clinical  testing  and  other  premarket   approval
procedures by the FDA and comparable  foreign  authorities.  In addition,  since
certain of our potential  products involve the application of new  technologies,
regulatory  approvals  may take longer  than for  products  produced  using more
conventional  methods.  Once we begin  clinical  trials for a new  diagnostic or
therapeutic  product,  it may  take  five to ten  years or more to  receive  the
required  regulatory  approval to commercialize that product and begin to market
it to the  public.  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 lengthy process of
seeking these approvals,  and the subsequent compliance with applicable statutes
and regulations,  will require us to expend substantial resources. If we fail to
obtain  or  are  otherwise   substantially  delayed  in  obtaining,   regulatory
approvals,  our business and  operations  could be  significantly  and adversely
affected.

In  responding to a new drug  application,  or a biologic  license  application,
government   regulators  may  grant  marketing  approvals,   request  additional
information or further research,  or deny the application if they determine that
the application does not satisfy its regulatory approval criteria. Approvals may
not be granted on a timely basis, if at all, or if granted may not cover all the
clinical   indications  for  which  we  are  seeking  approval  or  may  contain
significant   limitations   in   the   form   of   warnings,    precautions   or
contraindications with respect to conditions of use. Even after approval, we may
be  required  to  recall or  withdraw  a  product  as a result  of  subsequently
discovered safety or efficacy concerns.

                                  Page 5 of 10





Our Business Involves the Use of Hazardous Materials

In addition to laws and regulations  enforced by the FDA, we are also subject to
regulation  under  various  other  foreign,  federal,  state or  local  laws and
regulations.  Our  research  and  development  involve  the  controlled  use  of
hazardous materials,  chemicals,  viruses and various radioactive compounds. The
risk of  accidental  contamination  or injury  from  these  materials  cannot be
completely  eliminated.  If an accident occurs,  we could be held liable for any
damages that result and any liability could exceed our resources.

We Must Maintain Our  Manufacturing  Facilities in  Accordance  With  Government
Regulatory Requirements

Our  facilities  are subject to  inspection  by the FDA and  comparable  foreign
authorities. A separate license is sometimes required for commercial manufacture
of any product.  Failure to maintain  these  licenses or to meet the  regulatory
inspection  criteria would result in disruption to our  manufacturing  processes
and could have a significant and adverse effect on our business and operations.

We  Have  Agreed  to  Certain  Covenants  in  our  1999  Financing  Which  Place
Restrictions on the Operation of our Business

In connection with the Company's December 1999 financing,  the Company agreed to
certain  covenants,  including  covenants that will apply until such time as the
investors in that offering and their affiliates beneficially own less than 5% of
our common stock.  Among other things, the Company agreed that without the prior
consent of the  investors,  the Company may not sell its business to anyone that
is an affiliate of the Company,  unless the sale is for  consideration  at least
equal  to (a) the  fair  market  value  in the  event  of a sale of  assets  (as
determined  in good faith by the  Company's  board of directors) or (b) the then
current market price in the event of a sale of stock.  As of May 10, 2001,  such
investors in the aggregate beneficially owned 7.21% of the Company's outstanding
common stock.

Changes to Health Care Reimbursement Could Adversely Affect Our Operations

Our ability to  successfully  commercialize  our products will depend in part on
the  extent to which  reimbursement  for the cost of our  products  and  related
treatment will be available from government health  administration  authorities,
private health insurers and other  organizations.  These third-party  payers are
increasingly  challenging  the price of medical  products and services.  Several
proposals have been made that may lead to a government-directed  national health
care system.  Adoption of this type of system could further limit  reimbursement
for medical products,  and we cannot assure investors that adequate  third-party
coverage will be available to enable us to maintain  price levels  sufficient to
realize an  appropriate  return on our  investment  in product  development.  In
addition,  we also cannot assure  investors that the U.S.  government or foreign
governments  will not  implement a system of price  controls.  Any system  might
significantly   and  adversely   affect  our  ability  to  market  our  products
profitably.

                                  Page 6 of 10




The Loss of Key Employees Could Adversely Affect our Operations

As a small  biotechnology  company, we are heavily dependent upon the talents of
Dr. Goldenberg and certain key scientific personnel. If Dr. Goldenberg or any of
our other key personnel leave our employ,  our operations could be significantly
and adversely affected. In addition,  from time to time we have a need to expand
our management and scientific personnel.  Competition for qualified personnel in
the biotechnology and pharmaceutical  industries is intense and we cannot assure
investors  that we will be  successful  in our  recruitment  efforts.  If we are
unable to retain or, when needed,  attract additional qualified  personnel,  our
operations also could be significantly and adversely affected.

We Face Substantial  Competition in the Biotechnology  Field and May Not Be Able
to Successfully Compete

The biotechnology  industry is highly  competitive,  particularly in the area of
cancer  diagnostic  and  therapeutic   products.  We  are  likely  to  encounter
significant  competition  with respect to our  existing  products as well as our
products  currently  under  development.  A number of companies,  including IDEC
Pharmaceuticals,  Genentech,  SmithKline Beecham,  Nycomed Amersham, and Coulter
Pharmaceutical,  are engaged in the  biotechnology  field, and in particular the
development  of  cancer  diagnostic  and  therapeutic  products.  Many of  these
companies  have  significantly   greater  financial,   technical  and  marketing
resources  than  us.  In  addition,  many  of  these  companies  may  have  more
established positions in the pharmaceutical  industry and may be better equipped
than us to develop, refine and market their products.

We also  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  technology.
These institutions are becoming  increasingly more aware of the commercial value
of their  findings  and more  active in  seeking  patent  and other  proprietary
rights, as well as licensing revenues.

Our Products May Be Rendered Obsolete By Rapid Technological Change

We are pursuing an area of product  development  in which there is the potential
for extensive technological  innovations in relatively short periods of time. We
cannot  assure  investors  that our  competitors  will not succeed in developing
products that are safer or more effective than our products. Rapid technological
change or developments  by others may result in our current  products as well as
those in development becoming noncompetitive or obsolete.

If We Are Unable to Protect Our Intellectual  Property Rights, We Could Lose Our
Competitive Advantage

Our commercial  success is highly  dependent upon patents and other  proprietary
rights that we own or license.  We cannot assure  investors that our key patents
will not be  invalidated  or will  provide  us  protection  that has  commercial
significance. Litigation may be necessary to protect our patent positions, which
could be costly and time  consuming.  If any of our key  patents  that we own or
license  are  invalidated,  our  business  may be  significantly  and  adversely
affected.  In addition,  other companies may independently develop similar trade
secrets  or  know-how  or  obtain  access  to our  trade  secrets,  know-how  or
proprietary  technology,  which could  significantly  and  adversely  affect our
business.

                                  Page 7 of 10




Our Products May Infringe Third Party Intellectual Property Rights

Other companies may have filed  applications  for, or have been issued,  patents
and obtained  other  proprietary  rights to technology  which may be potentially
useful to us.  Since we do not have the  resources  to  maintain  a staff  whose
primary  function is to  investigate  the level of protection  afforded to third
parties on devices and components  which we use in our products,  it is possible
that a third party could  successfully claim that our products infringe on their
intellectual  property  rights.  If this were to  occur,  we may be  subject  to
substantial  damages, and we may not be able to obtain appropriate licenses at a
cost we could  afford  and we may not have the  ability to timely  redesign  our
products.  If we are  required  to pay  damages  or are  unable to obtain  these
rights, our business could be significantly and adversely  affected.  Even if we
are successful in defeating any alleged  infringement  claims,  litigation could
result in a substantial diversion of managerial time and resources,  which could
be better and more fruitfully utilized on other activities.

Our Operations Could Suffer If We Are  Unsuccessful in Our Pending  Infringement
Claims Concerning Our CEA Antibodies

We  are  involved  in  certain  litigation  with  F.  Hoffmann-LaRoche  and  its
affiliates concerning the validity of our European patents covering the antibody
we use in our  CEA-Scan  cancer  imaging  product  and our  CEA-Cide(TM)  cancer
therapy product, as well as the use of highly specific anti-CEA antibodies for a
number of other uses.  We have claimed that they have  infringed  our patent and
they have counterclaimed  seeking to nullify the patents that were issued. If we
receive an unfavorable  outcome in any of these  matters,  our business could be
significantly and adversely affected.

Product  Liability  Claims  in  Excess  of the  Amount  of Our  Insurance  Would
Adversely Affect Our Financial Condition

The clinical testing,  marketing and  manufacturing of our products  necessarily
involve the risk of product liability. While we currently have product liability
insurance,  we cannot  assure  that we will be able to obtain  insurance  in the
future at an acceptable  cost, if at all. If we cannot  maintain our existing or
comparable  liability  insurance,  our ability to test clinically and market our
products may be significantly  impaired.  Moreover,  the amount and scope of our
insurance coverage or indemnification arrangements with any distributor or other
third party upon which we rely may be inadequate to protect us in the event of a
successful  product  liability  claim.  Any claim in excess of the amount of any
insurance we then had could  significantly  and  adversely  affect our financial
condition and operating results.

Our Principal  Stockholder Can Influence Most Matters Requiring  Approval By Our
Stockholders

As of May 10, 2001, Dr. Goldenberg,  our Chairman and Chief Scientific  Officer,
controlled the right to vote over approximately  22.8% of our common stock. As a
result of this voting power,  Dr.  Goldenberg  may have the ability to determine
the  election  of all of our  directors,  direct our  policies  and  control the
outcome  of  substantially  all  matters  which  may be  put  to a  vote  of our
stockholders.

                                  Page 8 of 10




Resales of Shares Held By Our  Directors  and  Executive  Officers May Lower the
Market Price of Our Common Stock

As of May  10,  2001,  we had a total  of  49,525,371  shares  of  common  stock
outstanding,  6,855,439  of  which  were  held by our  directors  and  executive
officers.  These shares may only be resold in limited quantities and only within
the limitations  imposed by Rule 144 under the Securities Act. The mere prospect
that these  shares may be publicly  resold  could lower the market price for our
common stock.

Our Stock Price Has Been Volatile

We believe  that a variety of factors have caused the market price of our common
stock to fluctuate substantially,  and that it will continue to fluctuate in the
future. These factors include:

*    actual or anticipated fluctuations in our operating results;

*    the status of our products in development;

*    new products or technical innovations by us or by our existing or potential
     competitors;

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

*    prolonged  periods of  regulatory  review of new  products  or new uses for
     existing products;

*    determinations regarding our patent applications and those of others;

*    trading strategies occurring in the market place with respect to our common
     stock; and

*    general market  conditions and other factors unrelated to us or outside our
     control.

Stockholders Could Be Adversely Affected By Our Anti-Takeover Provisions

Our board of  directors  has the  authority,  without  any  further  vote by our
stockholders, to issue up to 10,000,000 shares of preferred stock in one or more
series and to determine  the  designations,  powers,  preferences  and relative,
participating,  optional or other rights  thereof,  including the dividend rate,
whether dividends are cumulative,  conversion rights,  voting rights, rights and
terms of redemption,  redemption price and liquidation  preference.  Issuance of
preferred  stock could have the effect of delaying,  deterring  or  preventing a
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 ability to replace incumbent
directors  and to  accomplish  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.

                                  Page 9 of 10




Stockholders Should Not Expect That We Will Pay Dividends

We have  never  paid any  dividends  on our common  stock.  For the  foreseeable
future,  we expect to retain  earnings,  if any,  to finance the  expansion  and
development of our business.  Any future payment of dividends will be within the
discretion  of our Board of Directors and will depend upon a variety of factors,
including  our  earnings,  capital  requirements,  and  operating  and financial
condition.

                                  Page 10 of 10