IMMUNOMEDICS INC
10-K, 1998-09-28
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                             -------------------
                                  FORM 10-K

(Mark One)
   [x]                       ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
                                OF THE SECURITIES EXCHANGE ACT OF 1934

                                FOR THE FISCAL YEAR ENDED JUNE 30, 1998

                                                  OR

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

                       COMMISSION FILE NUMBER: 0-12104

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

                             -------------------

                   Delaware                       61-1009366
          (State of incorporation) (I.R.S. Employer Identification No.)

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

     The Company's telephone number, including area code: (973) 605-8200

                             -------------------
         Securities registered pursuant to Section 12(b) of the Act:
                                     None

         Securities registered pursuant to Section 12(g) of the Act:

                         Common Stock, $.01 par value
                               (Title of class)

    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 requirement for the past 90 days. Yes _X_ No ____

    Indicate by check mark if disclosure of delinquent  filers  pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of the Company's knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

    As of September 24, 1998,  37,586,087  shares of the Company's  common stock
were outstanding, and the aggregate market value of voting and non-voting common
equity held by  non-affiliates  of the registrant,  computed by reference to the
last reported sale price for the Company's  common equity on the Nasdaq National
Market at that date, was $87,645,237.

                     Documents Incorporated by Reference:

    Portions  of the  Company's  definitive  Proxy  Statement  to be  mailed  to
stockholders  in  connection  with the  Annual  Meeting of  Stockholders  of the
registrant  to  be  held  on  November  4,  1998  (the  '1998  Definitive  Proxy
Statement'),  which  will be filed with the  Commission  not later than 120 days
after the end of the fiscal year to which this report relates,  are incorporated
by reference in Part III hereof.

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<PAGE>
                                    PART I

Item 1 -- Business

Introduction

    Immunomedics,  Inc. (the 'Company') is a biopharmaceutical  company applying
innovative  proprietary   technology   in   antibody   and   peptide  selection,
modification and chemistry to the development of products for the detection  and
treatment of cancers and other diseases.  Integral to these  products are highly
specific   monoclonal    antibodies    designed    to   deliver   radioisotopes,
chemotherapeutic agents, toxins, dyes or other substances to a specific  disease
site or organ system.

    The  Company  is  developing  a line of in  vivo  imaging  products  for the
detection of various  cancers and other  diseases.  In April,  1991, the Company
filed a Product License Application,  now called a Biologics License Application
('BLA'),  to which an amendment was filed in June,  1993, with the U.S. Food and
Drug  Administration  ('FDA') seeking approval to manufacture and market, in the
United  States,  the Company's  proprietary  in vivo  colorectal  cancer imaging
product,  CEA-Scan'r'.  On June 28, 1996, the FDA licensed CEA-Scan for use with
other  standard  diagnostic  modalities  for the  detection of recurrent  and/or
metastatic  colorectal  cancer.  In March,  1992,  the  Company  filed  with the
Committee for Proprietary  Medicinal  Products ('CPMP') to market the product in
Europe. On October 4, 1996, the Company was granted  marketing  authorization by
the European  Commission for use of CEA-Scan in the 15 countries  comprising the
European Union for the same  indication as approved in the United States.  Phase
III clinical trials of CEA-Scan for the detection of lung cancer are continuing,
and the Company is in discussion with both the FDA and CPMP to evaluate Phase II
clinical  trial data for the detection of breast cancer.  However,  no assurance
can be given as to if,  or when,  final  regulatory  approvals  for any of these
additional indications for CEA-Scan may be forthcoming.  In February,  1992, the
Company filed with the Health  Protection  Branch ('HPB') to market  CEA-Scan in
Canada.  On September 16, 1997, the Company received a notice of compliance from
the HPB permitting it to market  CEA-Scan in Canada 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 BLA for LeukoScan with the FDA for the same indication
approved in Europe,  plus an additional  indication  for the diagnosis of acute,
atypical  appendicitis.  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
and a marketing  application  was filed in Switzerland  in September,  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 will instead  publish its Phase III efficacy  data.  As with all  regulatory
filings, there can be no assurance that such filings will be approved by the FDA
or by the HPB. Phase III trials for infected prostheses are continuing,  and the
Company is examining other applications for the product.

    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 (see 'Products and Projects in
Development').

    The  Company  also  is  applying  its   expertise  in  antibody   selection,
modification  and  chemistry  to develop  therapeutic  products for cancer using
humanized  monoclonal  antibodies  labeled with radioisotopes or conjugated with
drugs or  unlabeled  monoclonal  antibodies.  The Company has been  conducting a
multicenter   Phase   I/II   clinical   trial  with   LymphoCide'TM'   (formerly
ImmuRAIT-LL2),  a non-Hodgkin's B-cell lymphoma therapeutic product.  This trial
was designed to obtain knowledge about targeting and dosing with the murine form
of the monoclonal  antibody.  The Company has now advanced the humanized form of
LymphoCide into Phase I/II clinical trials and is discontinuing  trials with the
murine  form (see 'In Vivo  Therapeutic  Products').  Solid tumor  therapy  with
CEA-Cide'r'  for treatment of patients with  inoperable,  residual and recurrent
solid tumors is advancing into Phase I/II

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<PAGE>


clinical trials in the U.S. and European Union. CEA-Cide targets receptor
sites on CEA-expressing solid tumors of the breast, lung, digestive and other
organ systems.

    On November 24, 1997, the Company entered into a Distribution Agreement with
Eli Lilly  Deutschland  GmbH  ('Lilly')  pursuant  to which Lilly  packages  and
distributes  LeukoScan  within the countries  comprising  the European Union and
certain other countries subject to receipt of certain regulatory approvals.

    Effective as of April 6, 1998, the Company terminated its license agreements
with Mallinckrodt  Medical,  B.V. and Mallinckrodt Medical, Inc. The Company has
entered  into an  agreement  with Lilly to  distribute  CEA-Scan in the European
Union and an  agreement  with the ICS  Division  of Bergen  Brunswig  Speciality
Corporation  to  provide  product  support  services  in  the  U.S.,   including
distribution,  order  management  and  customer  service for  CEA-Scan and other
products from time to time.

    The Company assumed full  responsibility for sales and marketing of CEA-Scan
worldwide and has employed its own sales and marketing organizations in the U.S.
and Europe and  negotiated  local  distribution  agreements  in certain  markets
outside the U.S. (see 'Marketing, Sales and Distribution' for the current status
of these agreements).

    In  November,  1997,  the Company was awarded  damages in the amount of $1.8
million,  including  interest in its arbitration claim against  Pharmacia,  Inc.
('Pharmacia')  for breach of  contract  and  fiduciary  duty  arising out of the
license  agreement with a predecessor  of Pharmacia that had been  terminated in
1995 (see 'Legal Proceedings').

    In June,  1998, the Company  announced its intention to form a joint venture
with Beckman  Coulter,  Inc. for the  development of compatible  technologies to
advance the next generation of cancer therapeutics. Beckman Coulter will license
a  bi-specific  antibody  targeting  technology  known as 'Affinity  Enhancement
System' to IBC  Pharmaceuticals,  LLC, the new joint  venture.  The Company will
license technology and commercialization expertise to the venture.

    The Company was  incorporated  in Delaware in 1982. The Company's  principal
offices are located at 300 American Road,  Morris Plains,  New Jersey 07950. The
Company's telephone number is (973) 605-8200. The Company also has a subsidiary,
Immunomedics  Europe,  with offices  located in Hillegom,  The  Netherlands,  to
assist the  Company in  managing  sales and  marketing  efforts  and  coordinate
clinical trials in Europe.

Products and Projects in Development

In Vivo Imaging Products

    The Company's in vivo imaging products utilize  radioimmunodetection,  which
involves  injecting a patient with a radioisotope  linked, or conjugated,  to an
antibody.  An antibody is a protein that can  recognize and  selectively  attach
itself to a specific  substance called an antigen.  Such antigens are present on
tumor cells,  white blood cells that accumulate at the sites of infections,  and
other  disease  entities.  By attaching a  radioisotope  to a  disease-targeting
antibody,  the  radioisotope  may be delivered to a disease site for imaging.  A
gamma camera (standard nuclear medicine equipment used for imaging) is then used
to detect and  display  radioisotope  concentrations,  revealing  the  presence,
location and approximate size of the site of disease.

    The Company's in vivo imaging products utilize only one of the upper arms of
the antibody,  the Fab' fragment.  The Company uses its proprietary chemistry to
produce the Fab'  fragment  of a  mouse-derived  antibody  capable of direct and
virtually instant attachment or 'labeling' with  technetium-99m.  Technetium-99m
is the radioisotope most frequently used in nuclear medicine because of its high
quality imaging capabilities,  short half-life,  widespread availability and low
cost.  The use of a fragment of the antibody,  rather than the whole,  minimizes
the human body's immune response to the injection of  mouse-derived  antibodies.
This  benefit is enhanced by the low Fab' dosage used in the  Company's  imaging
products.  An  additional  advantage  of using  technetium-99m  and an  antibody
fragment is that  imaging is  enhanced  in the liver,  the first site of distant
metastasis  for many  cancers.  Intact  antibodies  and  certain  other  imaging
radioisotopes accumulate in the liver, potentially interfering with adequate

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<PAGE>


imaging  of tumors  in this  organ.  Finally,  technetium-99m  labeled  antibody
fragments not taken up by tumors are quickly excreted via the kidneys, enhancing
tumor-to-background ratios in other regions.

    The Company's in vivo imaging  products,  contained in single vials,  can be
easily  prepared  by nuclear  medicine  technicians  without  assistance  from a
radiochemist or nuclear pharmacist. Once the technetium-99m is added to the vial
in a saline solution,  the product is ready for injection in approximately  five
minutes.

    On June 28, 1996,  the FDA licensed  CEA-Scan  for use in  conjunction  with
other standard diagnostic modalities for the detection of the presence, location
and extent of recurrent and/or metastatic colorectal cancer. On October 4, 1996,
this  product  also  was  approved  by the  European  Commission  for  the  same
indication.  On September 16, 1997, the Company  received a notice of compliance
from the HPB  permitting  it to market  CEA-Scan  in Canada  for  recurrent  and
metastatic colorectal cancer. In addition, the Company  has six proposed in vivo
imaging  products  or  indications  in various  stages of  clinical  testing and
regulatory  review by the FDA -- five for cancer imaging  (CEA-Scan for lung and
breast  cancer,  AFP-Scan  for liver and germ cell  cancer  and  LymphoScan  for
non-Hodgkin's  lymphoma) and one for imaging  infectious  diseases  (LeukoScan).
Clinical  trials of  PCP-Scan'TM'  ('PCP') for imaging of  Pneumocystis  carinii
pneumonia  were  discontinued  as the Company  continues to assess the product's
commercial value.

    The antibody in CEA-Scan is directed at  carcinoembryonic  antigen  ('CEA'),
which is  abundant at the site of  virtually  all cancers of the colon or rectum
(both primary tumors and  metastases).  CEA is also  associated  with many other
cancers,  and the Company  estimates  that three  quarters  of all human  cancer
patients  have  elevated  CEA levels at some of their  tumor  sites.  As part of
receiving FDA approval for CEA-Scan,  the Company has agreed to conduct Phase IV
clinical  studies to  evaluate  the  product  following  re-administration.  The
Company  also is  performing  Phase III clinical  trials,  using  CEA-Scan,  for
imaging lung cancer.  In addition,  Phase II clinical  trials for breast  cancer
imaging have been completed, results of which are currently being discussed with
FDA and  CPMP  officials  to  determine  whether  such  data  will  support  the
submission  of  applications  for this  additional  indication  in the U.S.  and
Europe, respectively.

    LeukoScan is a  monoclonal  antibody  fragment  which seeks out and binds to
granulocytes  (white blood cells)  associated  with a potentially  wide range of
infectious and inflammatory diseases. On February 14, 1997, the Company received
European  regulatory approval to market the product for detecting and diagnosing
osteomyelitis  (bone  infection)  in  long  bones  and in  diabetic  foot  ulcer
patients.  On December 19, 1996,  the Company filed a BLA with the FDA,  seeking
approval to market  LeukoScan  in the U.S. for the same  indication  approved in
Europe,  plus  an  additional   indication  for  diagnosis  of  acute,  atypical
appendicitis.  A New Drug Submission for the same indications as in the U.S. was
filed with the HPB in Canada on March 24, 1998, and a marketing  application was
filed in Switzerland in September, 1998.

    Three other imaging  products are being studied  pursuant to IND's submitted
to the FDA.  The Company  also has ongoing  clinical  trials in Europe for these
agents:

            -- LymphoScan, employing an antibody capable of targeting an antigen
               on non-Hodgkin's  B-cell lymphomas (Phase III clinical trials are
               underway).

            -- AFP-Scan,    employing   an   antibody   capable   of   targeting
               alpha-fetoprotein,  a marker on liver cancer and germ-cell tumors
               of  the  ovaries  and  testes  (Phase  II  clinical   trials  are
               underway).

            -- MyeloScan'TM',  Tc-99m -- labeled  murine  antibody  for  nuclear
               imaging of bone marrow for detection of metastatic marrow disease
               (Phase I/II clinical trials are completed).

In Vivo Therapeutic Products

    The Company is applying its  expertise in antibody  selection,  modification
and chemistry to cancer therapeutics,  using monoclonal  antibodies labeled with
therapeutic  radioisotopes  or conjugated with drugs.  The Company is engaged in
developing   anti-cancer   products,   principally   with  a  technique   called
radioimmunotherapy.  This technique may deliver radiolabeled  therapeutic agents
to tumor sites more

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selectively  than  current  radiation  therapy  technologies,  while  minimizing
debilitating  side  effects.  The  Company  conducted a  multicenter  Phase I/II
clinical  trial  with  the  murine  form of its  non-Hodgkin's  B-cell  lymphoma
proposed  therapeutic  product,  LymphoCide,  for over four years.  This product
consists  of  a  monoclonal  antibody,   highly  specific  in  targeting  B-cell
lymphomas, labeled with the radioisotope iodine-131. In this Phase I/II clinical
trial of  LymphoCide,  several  patients,  all of whom were  late-stage and were
unresponsive  to  other   therapies,   experienced   varying  degrees  of  tumor
regression.  Reversible  bone marrow  toxicity was also observed.  By conducting
this trial,  the Company  increased  its  knowledge  of antibody  targeting  and
dosage.  The Company has now advanced its humanized  antibody program into Phase
I/II clinical  trials and is  discontinuing  its trials with the murine antibody
form of LymphoCide.  The Company is currently conducting,  in collaboration with
the Center for Molecular  Medicine and  Immunology  ('CMMI')  (also known as the
Garden State Cancer Center) and other academic or research centers,  research on
murine and humanized forms of targeting  antibodies,  alternative  radioisotopes
and new conjugation methods (see 'Research Programs').

Research Programs

    The Company incurred approximately $11,738,000, $13,114,000 and $12,504,000,
in total research and development expense during its fiscal years ended June 30,
1998, 1997 and 1996, respectively.

Antibody Engineering

    A major  obstacle in the field of monoclonal  antibody  therapy has been the
patient's  immune response to mouse-derived  antibodies,  making repeated use of
such  products  impracticable.  The  Company  has made  significant  progress in
humanizing  certain mouse antibodies (i.e.,  replacing  certain  components of a
mouse antibody with human  antibody  components),  and with respect  thereto the
Company  has  licensed  technology  from a  third  party.  Moreover,  using  the
techniques of molecular biology, the Company's scientists have re-engineered the
humanized   antibodies   with  improved   characteristics,   such  as  favorable
pharmacokinetic   properties  and  increased   radionuclide   and  drug  loading
capacities.

    During the past four fiscal years, the Company,  in collaboration  with CMMI
and other  investigators,  continued  to  demonstrate  successful  targeting  in
patients with the Company's  humanized  monoclonal  antibodies (hMN-14 and hLL2)
against the CEA cancer marker and non-Hodgkin's  B-cell lymphoma,  respectively,
as compared to the murine counterparts (MN-14 and LL2). The anticancer humanized
antibodies  are about 95% human and have shown very good uptake in the patients'
tumors.  The  Company  has now begun  focusing  on the study of these  humanized
monoclonal antibodies labeled with a pure beta-emitting isotope,  yttrium-90, in
patients with the appropriate target tumors (discussed below).

Alternative Radioisotopes

    The Company has used iodine-131 to label its  anti-lymphoma  antibody (LL2),
which has been  evaluated in a phase I/II clinical  trial against  non-Hodgkin's
lymphoma.   This  disease  has   previously   been  found  to  respond  well  to
radioimmunotherapy   using   iodine-131-labeled,    murine-based   anti-lymphoma
antibodies by  investigators  at several  institutions.  However,  one potential
drawback of an  iodine-131-labeled  LL2  antibody is the finding  that LL2, as a
rapidly internalizing antibody, is readily metabolized with the iodine-131-bound
metabolite quickly excreted from the target cell. This means that full advantage
is not taken of the eight-day  half-life of the iodine-131  radionuclide in this
one particular disease.  In contrast,  yttrium-90 from administered  yttrium-90-
labeled LL2 has been shown to be retained inside lymphoma cells for long periods
after  antibody  metabolism.   For this reason,  and also for reasons of greater
efficacy against larger tumors and the potential for out-patient use due to lack
of any associated gamma-ray emissions,   the Company's scientists have developed
yttrium-90-LL2  as  a  second-generation  product.   The Company has developed a
proprietory technology using a compound called 'DOTA' to tightly  bind  yttrium-
90  to  antibodies,   assuring   that  the  isotope  will  stay  attached during
circulation, and thus minimally impact the bone marrow and other organ  systems.
The  Company  has  begun  Phase  I/II  clinical  trials  with yttrium-90-labeled
humanized antibodies, and early reports are

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promising,  with some evidence of tumor regression.  The Company is not alone in
substituting   yttrium-90  for  iodine-131  as  an  antibody-delivered   isotope
therapeutic.  At least  one  other  competitor  is  labeling  an  antibody  with
yttrium-90 for similar indications. There can be no assurance that the Company's
clinical  trials  will  result  in a  successful  BLA  submission,  or that  the
resulting product will prove successful in the marketplace.

Other Antibody-Directed Therapy Approaches

    The  Company  is  continuing  work  on  selective  coupling  of  therapeutic
site-specific   agents  onto  engineered   carbohydrate   residues  on  antibody
fragments.  The proprietary  antibody  constructs offer the advantage of loading
multiple  therapeutic  moieties onto antibody fragments at a particular site and
in a manner,  which is known not to interfere with antigen binding.  The Company
also is  continuing  to  investigate  'pre-targeting',  whereby an  antibody  is
administered first and then followed by a separate radionuclide  administration.
Secondary recognition groups are attached, one to the targeting antibody and the
other to the  radionuclide,  such  that the  radionuclide  is  localized  to the
antibody  pre-targeted  to the tumor  site.  Using such  methods in  preclinical
animal tumor models,  target-to-blood  uptake ratios of  radionuclide  have been
improved by orders of  magnitude  compared to the antibody  radiolabeled  in the
conventional manner. The advantage of markedly increased  target-to-blood ratios
is somewhat offset by the greater complexity involved in multiple administration
and timing of  reagents.  Accordingly,  there can be no assurance at the present
time that this 'pre-targeting'  approach will offer a practical  alternative for
radioimmunotherapy.  Further,  other  companies  also  developing  pre-targeting
methods may prove to be more successful or faster to commercialization.

Peptides

    During fiscal year 1998,  the Company  continued to improve its  proprietary
methods for  technetium-99m  radiolabeling of peptides,  which were developed in
fiscal year 1996, up to  clinical-scale  levels using  single-vial  kits.  These
automated  synthetic methods will be generally  applicable to the preparation of
radioconjugates  of  other  diverse  chelate-peptides,  and  will  enable  rapid
evaluation of different  peptide-receptor  systems directly with peptide analogs
labeled with technetium-99m,  the optimum imaging radionuclide.  This technology
has  been  applied  to the  preparation  of  analogs  of  somatostatin  and  has
demonstrated  reagent utility in  pre-clinical in vivo models.  In related work,
similar novel synthetic  methods have also been used to prepare  chelate-peptide
conjugates which can be radiolabeled with indium-111 and yttrium-90.

Intraoperative Cancer Detection

    The Company has been developing intraoperative cancer detection applications
with CEA-Scan, utilizing hand-held,  radiation-detecting probes. The Company has
learned that surgeons  have  successfully  used CEA-Scan in this way,  within 48
hours of its injection and external imaging. The Company has remained in contact
with these surgeons, one of whom reported to the Society of Surgical Oncology on
a prospective study of CEA-Scan imaging and probe-guided  surgery in twenty (20)
patients.  That study concluded that the probe and CEA-Scan  provided useful new
information in 7 of 20 patients, encouraging more aggressive postoperative care,
including chemotherapy. A U.S. patent was issued in 1990 to the Company for this
and endoscopic  applications.  The Company has discussed with the FDA the use of
CEA-Scan with gamma probes, and is planning clinical trials along lines proposed
by the FDA,  with the  objectives  of gaining  regulatory  approval for this new
intraoperative  use of CEA-Scan.  However,  there can be no assurance  that such
clinical trials or regulatory filings will be successful.

Government Grants

    During  fiscal year 1998,  the Company was awarded a phase I Small  Business
Innovation Research ('SBIR') grant from The National Cancer Institute ('NCI') of
the National  Institutes of Health, for $100,000,  to design a hormone releasing
peptide  imaging agent which will be used to  non-invasively  image breast tumor
receptors. Such an agent could potentially provide very specific benchmark

                                      5
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information  which  could  categorize  tumors,  stage the  disease,  determine a
cost-effective course of therapy and monitor treatment progress.

    In  September  1998,  the  Company  was  awarded two phase I SBIR grants for
$100,000 each. The first is to produce monoclonal  antibody-based agents for use
in early detection of cancer by positron-emission tomography ('PET'). The second
is for  improving  tumor  radioimmunotherapy  by peptide  nucleic  acid  ('PNA')
pre-targeting. (see 'In Vivo Imaging Products').

Relationship with The Center for Molecular Medicine and Immunology

    The Company's product development has involved, to varying degrees,  CMMI, a
specialized  cancer  research  center,  for the  performance  of  certain  basic
research and patient evaluations, the results of which are made available to the
Company pursuant to a collaborative  research and license  agreement.  CMMI is a
not-for-profit  corporation  funded  primarily by grants from the NCI.  CMMI was
previously  located  adjacent  to  the  Company's  former  Newark,  New  Jersey,
manufacturing  facility  (Newark  Facility),  but in  November  1996,  moved  to
improved facilities in Belleville, New Jersey. Dr. David M. Goldenberg, Chairman
of the Board and former Chief Executive Officer of the Company,  is the founder,
current  President and a member of the Board of Trustees of CMMI. Dr. Goldenberg
devotes  more of his  time  working  for  CMMI  than  for the  Company.  Certain
consultants to the Company have employment relationships with CMMI, and Dr. Hans
Hansen, an officer of the Company,  is an adjunct member of CMMI.  Despite these
relationships,  CMMI is  independent of the Company,  and CMMI's  management and
fiscal  operations  are the  responsibility  of CMMI's  Board of  Trustees  (see
'Certain Relationships and Related Transactions').

    Effective July, 1995, the Company amended its license agreement with CMMI to
assist CMMI in complying  with Internal  Revenue  Service  criteria for its then
recently completed tax-exempt financing.  Under the terms of the amended license
agreement,  the Company has the right of first  negotiation to obtain exclusive,
worldwide  licenses from CMMI to manufacture and market  potential  products and
technology covered by the license agreement under terms representing fair market
price,  to be negotiated  in good-faith at the time the license is obtained.  To
date, no products have been licensed from CMMI.  The Company  retains  licensing
rights to inventions  made during the term of the agreement for a period of five
years from the time of disclosure.  The amended license agreement  terminates on
December  31,  1999,  with the  Company  having  the  right  to seek  good-faith
negotiation to extend the agreement for an additional five-year period.

    The  potential  for  conflicts  of  interest  may exist in the  relationship
between the Company and CMMI,  and the  provisions of the agreement  between the
Company and CMMI have been designed to prevent such  conflicts  from  occurring.
The  Company and CMMI have agreed  that  neither  will have any right,  title or
interest in or to the research grants, contracts or other agreements obtained by
the other. The decision as to whether a potential  product has reached the stage
of  development  such that it must be offered by CMMI to the  Company is made by
the Board of Trustees of CMMI, and Dr.  Goldenberg has agreed not to participate
in the determination of any such issue.  Similarly,  the decision by the Company
as to whether or not to exercise  its right of first  negotiation  or release of
any  potential  product  offered by CMMI is determined by a majority vote of the
Board of Directors (or a subcommittee  thereof),  and Dr.  Goldenberg has agreed
not to participate in the determination of any such issue.

    The  Company  has  reimbursed  CMMI for  expenses  incurred on behalf of the
Company,  including  amounts  incurred  pursuant to research  contracts,  in the
amount of approximately $98,000, $69,000 and $64,000 during the years ended June
30, 1998, 1997 and 1996, respectively.  The Company also provides, at no cost to
CMMI, laboratory materials and supplies in connection with research conducted in
areas of potential interest to the Company.

    During each of the years  ending June 30,  1998,  1997 and 1996 the Board of
Directors of the Company made grants to CMMI of  $200,000,  to support  research
and  clinical  work being  performed  at CMMI,  such  grants to be expended in a
manner  deemed  appropriate  by the Board of  Trustees  of CMMI.  Pursuant  to a
collaborative  research  and license  agreement,  dated as of January 21,  1997,
between  the  Company  and CMMI,  the  Company  has agreed to pay CMMI an annual
license fee of

                                      6
<PAGE>


$200,000,  for which the Company  has the first right and option to  negotiate a
worldwide commercialization license.

Business Risks

    The Company's  products are in various stages of development and face a high
degree of  technological,  regulatory  and  competitive  risk. In addition,  the
Company's products must be approved for marketing by regulatory agencies such as
the FDA (with the exception of CEA-Scan and LeukoScan,  which have been licensed
as  discussed  above),  and no  assurance  can be  given  as to if or when  such
approvals could be  forthcoming.  Product  discovery and development  activities
require  substantial cash outlays.  At least until CEA-Scan and/or LeukoScan are
successfully  commercialized,  future  revenues  will be dependent in large part
upon the Company entering into new arrangements with collaborative  partners and
upon public and private financings.  In addition,  the Company has only recently
established  a sales and  marketing  organization,  including  the  addition  of
specialized  sales  forces in the U.S.  and Europe  (see  'Marketing,  Sales and
Distribution'). No assurance can be given that the Company's manufacturing costs
will be economically  viable, or that the Company can develop an effective sales
and marketing strategy to effectively promote any marketed product.

    The  risks  discussed  herein  reflect  the  Company's  immediate  stage  of
development.  Inherent in this stage is a range of additional  risks,  including
the Company's  history of losses and the need for, and uncertainty of, obtaining
future financing. The Company also faces numerous risks stemming from the nature
of the  biopharmaceutical  industry,  including  the  risk  of  competition  and
competing patents, the risk of regulatory change, including potential changes in
health care coverage, and uncertainties  associated with obtaining and enforcing
patents and proprietary technology, among others.

Marketing, Sales and Distribution

In Vivo Products

    The Company's  marketing strategy  initially  consisted of forming corporate
alliances with pharmaceutical  companies for the sale and distribution of its in
vivo  imaging  and  therapeutic  products,  whereby  the  partner's  established
marketing,  sales and distribution networks would minimize the Company's need to
expend  funds to develop  these  areas of  expertise.  However,  the Company now
believes that development of its own sales force,  complementary to those of its
partners,  will be necessary to increase the  likelihood  of  maximizing  market
penetration for its imaging products.

    In  March,   1995,  the  Company  entered  into  a  license  agreement  with
Mallinckrodt Medical B.V., pursuant to which Mallinckrodt Medical B.V. marketed,
sold and distributed CEA-Scan throughout Western Europe and in specified Eastern
European  countries,  subject to receipt of regulatory approval in the specified
countries.

    In April,  1996,  the  Company  entered  into a Marketing  and  Distribution
Agreement  with  Mallinckrodt  Medical,  Inc.,  pursuant  to which  Mallinckrodt
Medical,  Inc.,  marketed,  sold and distributed  CEA-Scan for use in colorectal
cancer diagnostic  imaging in the U.S. on a consignment  basis, and was required
to commit financial resources to that effort. The Company retained manufacturing
and  co-promotional  rights,  paid Mallinckrodt  Medical,  Inc. a pre-determined
amount  or  percentage  of the net  selling  price,  and was  allowed  to commit
additional  financial  resources  to  promotional   activities.   In  connection
therewith,  the Company  entered into an agreement with MMD Specialty  Services,
Inc.  ('MMD')  pursuant to which MMD provided the  Company,  during  fiscal year
1998,  with a  full-time  oncology  sales  force for the  marketing  and sale of
CEA-Scan in the United States.

    In April,  1997, the Company  launched  LeukoScan in Europe.  All marketing,
selling and distribution rights to the product have been retained by the Company
and the Company continues to build a sales and marketing organization to support
this effort.  Accordingly,  the Company has moved its European operations to new
facilities in Hillegom, The Netherlands.  In November, 1997, the Company entered
into a  Distribution  Agreement  with Lilly pursuant to which Lilly packages and
distributes  LeukoScan  within the countries  comprising  the European Union and
certain  other  countries  subject to the receipt of  regulatory  approval.  The
Company has established sales representation in major

                                      7
<PAGE>


European markets,  including Germany, the United Kingdom,  France and Italy. The
expansion  of the  sales  and  marketing  organization  also  has  enhanced  the
Company's  capability to market  products in Europe  through the  appointment of
BYK-Gulden as distributor  in Italy,  and local  distributors  in Spain (Nuclear
Iberica) and Greece (P.N.  Gerolymontes S.A.). The European headquarters support
staff and  infrastructure  has been expanded to include a sales  manager,  and a
physician with responsibilities as Medical Director.

    The Company was  dissatisfied  with the performance of Mallinckrodt  Medical
B.V.  and  Mallinckrodt  Medical,   Inc.,   (collectively,   the  'Mallinckrodct
Affiliates') under the respective agreements.  After protracted discussions with
Mallinckrodt  management,  the  Company  decided it was in the best  interest of
customers and shareholders to terminate its agreements with Mallinckrodt and, on
April 6, 1998, assumed full control of marketing,  sales and distribution of all
its products  (See 'Legal  Proceedings').  On that date,  the Company  appointed
Lilly to  distribute  CEA-Scan  in the  European  Union and a division of Bergen
Brunswig Company as a non-exclusive U.S.  distributor of CEA-Scan.  Upon further
review,  the Company  determined  that the sales and marketing  efforts would be
better supported through a structure that directly identified the Company to its
customers.  Accordingly,  in May 1998, the Company revised its arrangements with
BBSC,  entering into an agreement with Integrated  Commercialization  Solutions,
Inc.  ('ICS'),  a subsidiary of Bergen  Brunswig  Corporation and terminated the
original  agreement.  Under  the new  agreement,  ICS  serves as an agent of the
Company providing  product support services  including  customer service,  order
management, distribution, invoicing and collection.

    On September  9, 1998,  the Company  entered  into an agreement  with Syncor
International,  the world's leading  provider of radiopharmacy  services,  under
which Syncor will make CEA-Scan  available to its hospitals and clinic  accounts
throughout  the U.S.,  supported by  Immunomedics'  sales and technical  support
specialists.  Syncor will support the  Company's  efforts with their own team of
field specialists as well as the licensed  radiopharmacists who manage their 118
U.S.   facilities.   The  Company  continues  to  have  discussions  with  other
radiopharmacy chains regarding arrangements which will make CEA-Scan more widely
available to hospitals  and clinics,  but as of the date of this report no other
agreements  have  been  consumated,  and  there  can be no  assurance  that  any
additional agreements will be entered into.

    On January 1, 1998, in anticipation of the Company taking an increasing role
in the marketing and sales of its  products  worldwide,  the Company appointed a
vice president of marketing. On May 1, 1998, the Company acquired  substantially
all of its MMD contract sales organization following  which  the  Company  added
additional representatives in territories formerly covered by Mallinckrodt.  The
Company also has appointed a national  sales  director and a marketing  manager,
each with more than a decade of experience in the  pharmaceutical  industry.  By
October 1, 1998, the Company expects to have 22 sales  representatives and three
regional managers concentrated in major metropolitan markets.

    Prior to April 1998, the marketing of CEA-Scan was adversely impacted by the
absence of field  training  personnel  and  materials  dedicated to training new
users how to  properly  perform,  process and  interpret  CEA-Scan  studies.  In
response, the Company has hired a manager of technical services with more than a
decade of nuclear medical technology  consulting,  and more recently,  a Western
region  technical  specialist.  Three similarly  skilled Company  employees also
provide technical support to customers on an ad-hoc basis.

    The Company  recently  repositioned its marketing and sales efforts to focus
on the  contributions  of CEA-Scan to the  evaluation  of patients  with primary
colorectal cancer, up to a third of whom have unsuspected  metastatic disease at
the time of the disease  being  discovered.  In such cases,  CEA-Scan  holds the
possibilities of detecting those  metastases  before the patient is taken to the
operating  room,  allowing for  alternative  courses of action.  By  encouraging
preoperative  imaging with CEA-Scan,  the Company hopes to prepare  surgeons for
the day when the  residual  radiation  from those  preoperative  studies  can be
detected  by  gamma  probes,  thus  reducing  the  likelihood  that  unsuspected
malignant  tissue will be  inadvertently  left behind.  Also, by  'benchmarking'
colorectal  cancer  patients for  metastases  before  surgery,  surgeons can use
CEA-Scan to routinely follow those same patients for recurrence.  The Company is
initiating a clinical trial modeled after a paper presented at the 1998 World

                                      8
<PAGE>


Federation  of Surgical  Oncology  Societies  meeting.  The authors  followed 40
rectal cancer patients with CT,  colonoscopy,  blood studies and CEA-Scan over a
five-year period.  They concluded that only CEA-Scan picked up recurrent disease
at a point  when it was  still  surgically  curable  in about a  quarter  of the
patients suffering a relapse.

Manufacturing

    To date, the Company has manufactured all investigational agents used in its
clinical  trial programs and currently  manufactures  CEA-Scan and LeukoScan for
commercial use. The Company performs antibody processing and purification of its
clinical products at its Morris Plains, New Jersey, facility (see 'Properties').
The Company has entered into a manufacturing  agreement with SP Pharmaceuticals,
formerly  the  Oncology  Division of  Pharmacia  & Upjohn,  pursuant to which SP
Pharmaceuticals   performs  certain  end-stage  portions  of  the  manufacturing
process.  Under the terms of such  agreement,  the Company pays  according to an
established  price structure for these services.  The Company has identified and
qualified a second entity to perform similar end-stage manufacturing as a second
source to SP Pharmaceuticals.

    In February, 1997, the Company closed its Newark, New Jersey,  manufacturing
facility and moved these operations to the Company's Morris Plains headquarters,
which also  houses  regulatory,  medical,  research  and  development,  finance,
marketing  and  executive  offices  (see  'Properties').  The  Company  has  now
scaled-up to  commercial  levels its  antibody  purification  and  fragmentation
manufacturing  processes.  The  new  manufacturing  facility  consists  of  four
independent  antibody-manufacturing suites, several support areas, and a quality
control  ('QC')  laboratory.  Start-up  validation  and  inspection  of the  new
facility has been completed,  encompassing the adoption of a new, more efficient
manufacturing  process.  In May,  1998, the  manufacturing  facility and product
manufacturing  processes  were approved by the CPMP of the European  Commission.
The facility and processes are under final review by the FDA. However, there can
be no assurance at this time that the FDA will approve this facility in a timely
manner to meet the manufacturing needs of the Company.

    The Company's  proposed  monoclonal  antibody products are currently derived
from  ascites  fluid  produced in mice,  and the  Company  has  entered  into an
agreement  with a  third-party  supplier for the  production  of ascites  fluid.
Although  CEA-Scan  has been  approved  in the U.S.,  Canada,  and  Europe,  and
LeukoScan has been approved in Europe,  regulatory authorities,  particularly in
Europe,  have expressed  concerns about the use of ascites for the production of
monoclonal  antibodies.  The Company  believes that its current  quality control
procedures help ensure the purity of the ascites used in its products, but there
can be no  assurance  that the  regulatory  authorities  will  agree  that these
procedures will be adequate for future products. The Company's effort to convert
to cell culture  production for certain  monoclonal  antibodies is  progressing.
Products manufactured by cell culture processes will require regulatory approval
for  this   substantial   change  in  process,   and  will  require   additional
manufacturing equipment and resources for this effort.

Patents and Proprietary Rights

    The Company actively pursues a policy of seeking patent protection,  both in
the United States and abroad, for its proprietary technology.  The Company has a
diverse  patent  portfolio  for  its  in  vivo  diagnostic  products,  currently
consisting of 54 issued United States  patents and 192 issued  foreign  patents,
with 38 U.S. patent applications  pending, of which 5 have been allowed, and 134
foreign patent applications pending, of which 18 have been allowed.  Included in
the  foregoing are 8 United States  patents and their foreign  counterparts,  to
which the Company has rights  pursuant to an  exclusive  license  granted by Dr.
Goldenberg.  The  Company  also has certain  rights with  respect to patents and
patent  applications owned by CMMI, by virtue of a license agreement between the
Company and CMMI.

    The Company owns or has licensed  patents that contain broad claims covering
significant aspects of current radioimmunodetection technology for tumor imaging
with radiolabeled  antibodies and antibody fragments.  These U.S. issued patents
expire beginning in 1999, subject to extension under certain circumstances.  The
Company's patents also contain broad claims relating to tumor therapy with

                                      9
<PAGE>


radiolabeled  antibodies and antibody  fragments.  These patents  contain claims
covering the Company's potential in vivo cancer imaging and therapeutic products
currently under development.

    In  September,  1997,  the  Company  was issued a U.S.  patent for  modified
radioantibody  fragments  that are cleared from the body with reduced  uptake by
the kidneys.

    In  October,  1997,  the  Company  was issued a U.S.  Patent  covering a new
technology for detecting and treating infectious and inflammatory  lesions using
a  chimeric  (or  hybrid)   antibody.   This  hybrid  antibody  consists  of  an
antigen-binding  part that targets human granulocytes, combined with a different
antibody  region that bonds to receptors  on human  mononuclear  lymphoid  cells
which are involved in chronic infections and  inflammations.  This represents an
extension  of  the  LeukoScan  technology  to  more  chronic  infections  and to
inflammations.

    In November  and  December,  1997,  the Company was issued two U.S.  patents
covering   broad   claims   for   drugs   designed   to   treat   and   diagnose
chemotherapy-resistant cancers or infections. Resistance to anti-cancer drugs is
related to the  increased  expression  of certain  proteins  on the  membrane of
resistant  cells,  such  as  P-glycoprotein   which  gives  rise  to  multi-drug
resistance  (MDR). The process makes the use of the antibodies fused together to
result  in a  bi-specific  weapon  to  target  both  the  cancer  cells  and the
P-glycoproteins of MDR.  Attaching  diagnostic imaging agents to the bi-specific
drugs for the potential identification of tumors expressing  P-glycoproteins and
MDR is also covered in the patent.

    Also in December,  1997,  two U.S.  patents were issued to the Company.  One
covers a method for  removing  non-malignant  cells or  tissue,  such as ectopic
tissue,  retained tissue,  normal organ tissue and bone marrow, using antibodies
to target the cells or tissue and a cytotoxic  agent linked to the antibodies to
kill the cells.  This  technique  is useful for  removal of tissues  that may be
difficult  to access  using  surgery.  The  second  patent  covers a method  for
reducing  the   immunogenicity   of  avidins  such  as  streptavidin,   using  a
carbohydrate polymer.

    In January,  1998,  the Company  was issued a U.S.  patent for  polyspecific
antibody conjugates useful for treating infections.  The conjugates have binding
components  that seek out different types of white blood cells that are found in
large numbers at sites of infections.

    In  February,   1998,  the  Company  was  awarded  a  U.S.  patent  covering
disease-seeking  antibody  technology  for  detection  and  treatment of cancer,
infections,  clots and coronary heart disease.  The patent covers small antibody
molecules, or fragments,  that target disease with payloads of isotopes,  drugs,
fluorescent  dyes and other  substances  that  detect  and treat  diseases.  The
antibody  fragments attach payloads to unique proteins on the surface of tumors,
drug  resistant  bacteria,  blood  clots,  and even blood cells that  collect on
fat-clogged  arteries.  The  patent  further  grants  exclusive  rights  to  use
hand-held  radiation-detecting  probes,  laparoscopes  and  endoscopes to locate
disease sites where these antibody fragments and their payloads attach.

    In March,  1998,  a U.S.  patent  was issued to the  Company  covering a new
method for labeling  proteins  with  radioactive  phosphorus  atoms for therapy,
using a labeling  molecule that is more stable than those  previously  used. The
claims also cover proteins labeled with the stable radiophosphorus group.

    In April and May, 1998, the Company was awarded two U.S. Patents  containing
multiple   claims  for  detecting  and  treating   cancers  and  infectious  and
cardiovascular   lesions  by  delivering  imaging  or  therapeutic  agents  with
targeting  antibodies,  fragments or peptides.  The first uses a  'pre-targeting
approach'  involving a first step of localizing a molecule to the diseased area,
followed by enhanced  bonding of the matched  molecule  bearing a diagnostic  or
therapeutic  agent.  The  patent  claims an  improvement  in this  method  using
naturally  occurring  molecules carrying  diagnostic and therapeutic agents. The
second patent covers new methods of attaching  technetium or rhenium isotopes to
peptides. The invention solves a problem in labeling targeting peptides.

    Also  in May,  1998,  a U.S.  patent  was  issued  to the  Company  covering
radiometal-binding  analogues of a peptide  which binds to certain  receptors on
certain  types  of  hormone-sensitive   tumors,   especially  ovarian,   breast,
pancreatic and prostate cancers.

    In June,  1998,  the  Company  was  awarded a  Japanese  patent and two U.S.
patents  related  to new  radiopharmaceuticals  that are  either  already  being
commercialized or are in various stages of

                                      10
<PAGE>


development for imaging or treating cancers,  infections or other diseases.  The
Japanese patent,  the counterpart of an already issued U.S.  patent,  covers the
Company's  basic  method  of  attaching   technetium  and  rhenium  isotopes  to
disease-targeting antibodies.

    The  U.S.  patent  extends  the  labeling   technology  to  receptor-binding
peptides,  providing a new method for attaching  technetium and rhenium isotopes
to this new class of targeting agents.

    In July,  1998, two U.S. patents were issued to the Company covering nuclear
imaging and MRI (Magnetic  Resourance  Imaging)  methods to reveal  anatomically
displaced  cells or tissues by using very special  detector  molecules to locate
abnormal  cells or tissues by external  scanning of the patient.  Management  of
endometriosis,  a painful and debilitating  disease occurring in about 10-15% of
women ages 20-40, may be improved as a result of this new targeting method.

    Also in July,  1998,  the  Company  was issued  another  U.S.  patent  which
provides  a method  of  protecting  non-cancerous  tissues  and  cells  from the
toxicities of treating  cancer with  radiation or  chemotherapy  by  selectively
targeting protective drugs to such tissues. Subsequently,  thereapeutic doses of
radiation or drugs given to the  patient  kill cancer cells while normal tissues
and cells, such as in bone marrow, are protected by the drug.

    In August,  1998,  two U.S.  patents were issued to the  Company.  The first
covers  humanized  antibodies  that target  lymphoma and leukemia  cells and are
useful for  imaging  and  therapy,  in  conjunction  with drugs and  radioactive
agents.  The  second  patent  has  broad  claims to a new type of  vaccine  that
operates in stages and is able to induce a more complete immune response against
antigens found on tumors and infectious agents.

    Pursuant to a License  Agreement  between  the  Company and Dr.  Goldenberg,
certain patent applications owned by Dr. Goldenberg were licensed to the Company
at the time of the  Company's  formation in exchange for a royalty in the amount
of 0.5% of the first  $20,000,000 of annual net sales of all products covered by
any of such patents and 0.25% of annual net sales of such  products in excess of
$20,000,000. Dr. Goldenberg's Amended and Restated Employment Agreement with the
Company  dated  November  1,  1993  (the  'Employment  Agreement')  extends  the
ownership  rights of the Company,  with an obligation  to diligently  pursue all
ideas,  discoveries,  developments and products,  into the entire medical field,
which, at any time during his past or continuing  employment by the Company (but
not when performing  services for CMMI), Dr. Goldenberg has made or conceived or
hereafter  makes or  conceives,  or the  making  or  conception  of which he has
materially  contributed  to or hereafter  contributes  to, all as defined in the
Employment Agreement (collectively 'Goldenberg Discoveries').

    Further,  pursuant to the Employment Agreement,  Dr. Goldenberg will receive
incentive  compensation  of 0.5% on the first  $75,000,000 of all defined Annual
Net  Revenue of the  Company  and 0.25% on all such Annual Net Revenue in excess
thereof  (collectively  'Revenue  Incentive  Compensation').  Annual Net Revenue
includes the  proceeds of certain  dispositions  of assets or interests  therein
(other than defined Undeveloped  Assets),  including defined Royalties,  certain
equivalents  thereof  and,  to the extent  approved  by the  Board,  non-royalty
license fees.  Revenue  Incentive  Compensation will be paid with respect to the
period  of Dr.  Goldenberg's  employment,  and two years  thereafter,  unless he
unilaterally  terminates his employment without cause or he is terminated by the
Company for cause. With respect to the period that Dr. Goldenberg is entitled to
receive Revenue Incentive Compensation on any given products, it will be in lieu
of any other  percentage  compensation  based on sales or  revenue  due him with
respect to such products under this Agreement or the existing License  Agreement
between the Company and Dr.  Goldenberg.  With  respect to any periods  that Dr.
Goldenberg is not receiving such Revenue Incentive Compensation for any products
covered  by  patented  Goldenberg   Discoveries  or  by  certain  defined  Prior
Inventions  of Dr.  Goldenberg,  he will receive 0.5% on  cumulative  annual net
sales of, royalties on, certain equivalents thereof, and, to the extent approved
by the Board, other consideration  received by the Company for such products, up
to a cumulative  annual  aggregate of  $75,000,000  and 0.25% on any  cumulative
Annual Net Revenue in excess of $75,000,000 (collectively 'Incentive Payments').
A $100,000  annual  minimum  payment will be paid in the  aggregate  against all
Revenue  Incentive  Compensation and Royalty Payments ('Annual Minimum Payment')
and the License Agreement (discussed above).

                                      11
<PAGE>


    Dr.  Goldenberg  also will  receive  a  percent,  not less  than 20%,  to be
determined by the Board, of net consideration (including license fees) which the
Company receives for any disposition, by sale, license or otherwise (discussions
directed to which commence  during the term of his employment plus two years) of
any defined  Undeveloped Assets of the Company which are not budgeted as part of
the Company's  strategic  plan. Dr.  Goldenberg will receive not less than a 20%
interest  in  the  Company's  investment  in  IBC  Pharmaceuticals,   LLC,  upon
consummation of the joint venture between the Company and Beckman Coulter, Inc.

    Dr.  Goldenberg  will not be entitled  to any  incentive  compensation  with
respect to any products,  technologies or businesses acquired from third parties
for a total consideration in excess of $5,000,000, unless the Company had made a
material  contribution  to  the  invention  or  development  of  such  products,
technologies or businesses prior to the time of acquisition.  Except as affected
by a  defined  Change  in  Control  or  otherwise  approved  by the  Board,  Dr.
Goldenberg  will also not be entitled to any Revenue  Incentive  Compensation or
Incentive  Payments  other than the Annual  Minimum  Payment with respect to any
time during the period of his employment (plus two years,  unless  employment is
terminated  by  mutual  agreement  or by Dr.  Goldenberg's  death  or  permanent
disability)  that he is not the  direct  or  beneficial  owner of  shares of the
Company's  voting stock with an aggregate  market value of at least twenty times
his defined annual cash compensation.

    The Company has agreed to extend Dr. Goldenberg's employment agreement for a
five-year period.  Pursuant  to  this  extension,  Dr.  Goldenberg's annual base
salary will continue at $265,000. Further, the Company acknowledged and approved
Dr. Goldenberg's continuing involvement with CMMI and IBC Pharmaceuticals, LLC.

    Pursuant to a License  Agreement dated July 7, 1983, the Company must pay to
Dr. F. James Primus,  a co-inventor  with Dr.  Goldenberg of certain  monoclonal
antibodies and  immunoassays  which are the subject matter of a U.S.  patent and
foreign  counterparts  thereof  that  are  owned  jointly  by  Drs.  Primus  and
Goldenberg,  a royalty in the amount of 0.25% of the first $20,000,000 of annual
net  sales  of  certain  products  utilizing  a  CEA-specific   antibody  (e.g.,
CEA-Scan),  and  0.125%  of  annual  net  sales of such  products  in  excess of
$20,000,000.

    The Company has entered into patent license  agreements with  non-affiliated
companies, pursuant to which the Company granted to the licensee, for an initial
non-refundable fee plus royalties,  a non-exclusive  license under the Company's
patents to manufacture  and sell certain cancer  imaging  products.  To date, no
royalties have been received under these licenses. In addition,  the Company has
sought to enter  into  patent  license  agreements  with  companies  that may be
developing  or  marketing  products  that could  infringe  on one or more of the
patents  which the Company owns or has  licensed.  In certain  situations,  such
companies  have declined to enter into license  agreements  with the Company and
have raised  questions as to the scope and validity of certain of the  Company's
patents. Discussions are continuing with these companies and the Company intends
to vigorously  protect and enforce its patent  rights.  Although there can be no
assurances as to the outcome of any patent  disputes,  the Company believes that
its patents are valid and will be upheld if challenged.

    In November of 1996, the Company brought suit in The Netherlands  against F.
Hoffmann-LaRoche  and its Roche Diagnostics  subsidiary and European  affiliates
for  infringement of the Company's  European patent covering  specific  anti-CEA
antibodies  which  Roche  is  using  in  its  CEA   immunoassay.   Roche  denied
infringement  and countered with nullity actions in The Netherlands and Germany,
seeking to invalidate the Company's Dutch and German  patents.  A trial was held
on the  infringement  claim  before the  Patent  Court in The Hague on August 8,
1997,  resulting in dismissal of the action.  The dismissal was based in part on
the trial judge's  inability to resolve  validity issues without a full trial of
the nullity action. The Company has appealed.

    A trial on the Dutch nullity  action was held before the Patent Court in The
Hague on June 5, 1998,  resulting in dismissal of that action and maintenance of
all claims of the Company's  patent.  Affirmation of the validity of this patent
is important  because its claims also protect the antibody used in the Company's
in vivo CEA-Scan cancer imaging product and CEA-Cide cancer therapy product,  as
well as the use of highly  specific CEA  antibodies  for a number of other uses.
Trial in the German nullity action is scheduled for December,  1998. The Company
believes  that  its  European  patents  are  valid  and  infringed,  and that an
unfavorable outcome in the infringement and nullity actions is unlikely.

                                      12
<PAGE>


    In July,  1998, a license  agreement was signed between the Company and Dako
A/B under the  Company's  worldwide  patents for  specific  anti-CEA  monoclonal
antibodies,  which  Dako  markets  for in vitro use.  The  Company is engaged in
active  discussions  with  other  companies  that  may  be  using  its  patented
technology without the Company's approval in current products or products now in
development or clinical testing.

    The Company also relies in part on trade  secrets,  unpatented  know-how and
continuing  technological  advancements to maintain its competitive position. It
is the  practice of the Company to enter into  confidentiality  agreements  with
employees,  consultants  and  corporate  sponsors.  There  can be no  assurance,
however, that these measures will prevent the unauthorized  disclosure or use of
the Company's trade secrets and know-how.

    The mark  'IMMUNOMEDICS'  is  registered in the United States and 20 foreign
countries, and the Company's logo also is registered in the United States and in
several  foreign  countries.  The mark  'IMMUSTRIP'  is registered in the United
States and Canada.  The mark 'CEA-SCAN' is registered in the United States and 8
foreign  countries  and an  application  for a European  Community  Trademark is
pending.  The mark  'LEUKOSCAN' is registered in the United States and 9 foreign
countries,  application is pending in Canada,  and an application for a European
Community Trademark is also pending.  The mark 'LYMPHOSCAN' is registered in the
United  States  and 9  foreign  countries,  and an  application  for a  European
Community  Trademark  is  pending.  In  addition,  the  Company  has applied for
registration  in the  United  States for  several  other  trademarks  for use on
products now in development  or testing,  and for  corresponding  foreign and/or
European Community Trademarks for certain of those marks.

Government Regulation

    The  manufacture  and marketing of  pharmaceutical  or  biological  products
requires  approval of the FDA and comparable  agencies in foreign countries and,
to a lesser extent,  state  regulatory  authorities.  In the United States,  the
regulatory  approval process for antibody-based  products,  which are considered
'biologics' under FDA regulations, is similar to that for any new drug for human
use. The FDA has  established  mandatory  procedures  and safety  standards that
apply to the clinical  testing,  manufacturing  and marketing of  pharmaceutical
products.  Noncompliance  with  applicable  requirements  can  result  in fines,
recalls or seizure of  products,  total or  partial  suspension  of  production,
refusal  of the FDA to  approve  product  license  applications  or to allow the
Company to enter into supply contracts,  and criminal prosecution.  The FDA also
has  the  authority  to  revoke   previously   granted   product   licenses  and
establishment licenses.

    Generally,  there is a  substantial  period  of time  between  technological
conception of a proposed  product and its  availability for commercial sale. The
period  between  technological  conception  and  filing of a  Biologics  License
Application with the FDA is usually five to ten years for in vivo products and a
minimum  of two to three  years for in vitro  diagnostic  products.  The  period
between the date of  submission to the FDA and the date of approval has averaged
two to four years for in vivo products,  although the approval  process may take
longer, as was the case with CEA-Scan.

    The amount of time taken for this approval process is a function of a number
of variables, including the quality of the submission and studies presented, the
potential  contribution  that the compound  will make in improving the diagnosis
and/or  treatment of the disease in question and the workload at the FDA.  There
can be no assurance that any new product will successfully  proceed through this
approval  process or that it will be  approved in any  specific  period of time.
Depending  upon  marketing  and  distribution   plans  and  arrangements  for  a
particular product, the Company may require additional time before a proposed in
vivo product is available for commercial sale.

    The steps required before  biological  products can be produced and marketed
usually include preclinical non-human studies, the filing of an IND application,
human  clinical  trials and the filing and  approval  of a BLA.  In  addition to
obtaining  FDA  approval  for  each  product,  the FDA  must  also  approve  any
production facilities for the product.

    Pre-clinical  studies are  conducted in the  laboratory  and in animal model
systems  to gain  preliminary  information  on the drug's  effectiveness  and to
identify major safety problems. The results of

                                      13
<PAGE>


these  studies are  submitted to the FDA as part of the IND  application  before
approval can be obtained for the  commencement  of testing in humans.  The human
clinical testing program required for a new biologic or  pharmaceutical  product
involves several phases. The initial clinical  evaluation,  Phase I, consists of
administering  the  product and testing  for safe and  tolerable  dosages  while
noting the  effectiveness of the product at the various dose levels.  Typically,
for  cancer  agents,  testing  is  done  with a small  group  of  patients  with
widespread cancers that have been unresponsive to other forms of therapy.  Phase
II  involves  a  study  to  evaluate  the  effectiveness  of the  product  for a
particular   indication   and  to  refine   optimal   dosage  and   schedule  of
administration  and identify possible side effects and risks in a larger patient
group.  When a product is determined  to be effective in Phase II trials,  it is
then  evaluated  in Phase III  clinical  trials.  Phase III  trials  consist  of
additional  testing for effectiveness and safety with a further expanded patient
group,  usually at multiple  test sites.  A therapeutic  cancer  product must be
compared to standard  treatments,  if such  treatments  exist,  to determine its
relative effectiveness in randomized trials.

    Human clinical  trials of in vivo monoclonal  antibody  products may combine
Phase I and Phase II trials.  In selected  cases,  a more  traditional  Phase II
study may be performed to examine the  effectiveness  of a single product in one
or a limited number of configurations or dose schedules in a single tumor type.

    When Phase III studies are  complete,  the results of the  pre-clinical  and
clinical studies, along with manufacturing information, are submitted to the FDA
in  the  form  of  a  BLA.  The  BLA  involves   considerable  data  collection,
verification  and  analysis,  as well as the  preparation  of  summaries  of the
production and testing processes,  pre-clinical studies and clinical trials. The
BLA is submitted to the FDA for product marketing approval. The FDA must approve
the BLA and manufacturing facilities before the product may be marketed. The FDA
may also require post-marketing  testing,  including extensive Phase IV studies,
and  surveillance to monitor the effects of the product in general use.  Product
approvals  may be  withdrawn  if  compliance  with  regulatory  standards is not
maintained or if problems occur following initial  marketing.  In addition,  the
FDA may in some  circumstances  impose  restrictions on the use of the drug that
may limit its market  potential,  and also make it  difficult  and  expensive to
administer.

    The Company seeks to have its proposed products, when applicable, designated
as  'Orphan  Drugs'  under the  Orphan  Drug Act of 1983.  The  Orphan  Drug Act
generally provides incentives to manufacturers to develop and market products to
treat  relatively  rare diseases,  i.e.,  diseases  affecting fewer than 200,000
persons in the United States.  The Company has received Orphan Drug  designation
for, among others, AFP-Scan,  LymphoScan and LymphoCide, the Company's liver and
germ-cell  imaging,   lymphoma  imaging  and  lymphoma   therapeutic   products,
respectively,  and for CEA-Scan for the diagnosis of medullary thyroid cancer. A
drug that receives  Orphan Drug  designation and is the first product to receive
FDA  marketing  approval  for its  product  claim is  entitled  to a  seven-year
exclusive  marketing period in the United States for that claim for the product.
However,  a drug that is considered by the FDA to be different from a particular
Orphan Drug is not barred from sale in the United States during this  seven-year
exclusive marketing period.

    Manufacture  of a biological  product must be in a facility  approved by the
FDA  for  such  product.  The  manufacture,  storage  and  distribution  of both
biological and nonbiological drugs must be in compliance with Good Manufacturing
Practices ('GMP').  Manufacturers must continue to expend time, money and effort
in the  area  of  production  and  quality  control  to  ensure  full  technical
compliance with those requirements.  The labeling,  advertising and promotion of
drug  or  biological   product  must  be  in  compliance   with  FDA  regulatory
requirements.  Failure  to  comply  with  applicable  requirements  relating  to
manufacture,  distribution  or promotion can lead to FDA demands that production
and  shipment  cease,  and, in some cases,  that  products  be  recalled,  or to
enforcement  actions  that  can  include  seizures,   injunctions  and  criminal
prosecution.  Such  failures,  or new  information  reflecting on the safety and
effectiveness  of the drug that comes to light after approval,  can also lead to
FDA withdrawal of approval to market the product.

    The drug approval process is similar in other countries and is also
regulated by specific agencies in each geographic area. Approval by the FDA
does not ensure approval in other countries. Generally,

                                      14
<PAGE>


however, products that are approved by the FDA in the U.S. will ultimately
gain marketing approval in other countries, but may require considerable
additional time to do so.

    The Company's  ability to commercialize  its products  successfully may also
depend  in  part on the  extent  to  which  reimbursement  for the  cost of such
products  and  related  treatment  will  be  available  from  government  health
administration authorities, private health insurers and other organizations.

    The  Company's  present and future  business is also  subject to  regulation
under state and Federal law regarding work place safety,  laboratory  practices,
the use and handling of  radioisotopes,  environmental  protection and hazardous
substance  control and to other present and possible  future local,  federal and
foreign regulations. The Company believes its operations comply, in all material
respects, with applicable environmental laws and regulations, and the Company is
continuing  its  efforts  to  ensure  its full  compliance  with  such  laws and
regulations.

Competition

    The biotechnology  industry is highly competitive,  particularly in the area
of cancer diagnostic, imaging and therapeutic products. The Company is likely to
encounter  significant   competition  with  respect  to  its  proposed  products
currently  under  development.  A number of  companies  which are engaged in the
biotechnology  field, and in particular the development of cancer diagnostic and
therapeutic  products,   have  financial,   technical  and  marketing  resources
significantly greater than those of the Company. Some companies with established
positions in the pharmaceutical industry may be better equipped than the Company
to develop,  refine and market  products  based on  technologies  applied to the
diagnosis  and  treatment  of cancers and  infectious  diseases.  The  Company's
ability to compete in the future will depend,  in part, on its ability to foster
an  environment  in which  multi-disciplinary  teams  work  together  to develop
low-cost, well-defined processes and bring cost-beneficial products successfully
through  clinical  testing and  regulatory  approval.  A  significant  amount of
research and antibody-based  technology are also carried out at universities and
other non-profit research  organizations,  which are becoming increasingly aware
of the  commercial  value of their  findings  and are  becoming  more  active in
seeking patent and other proprietary rights, as well as licensing revenues.

    The Company is pursuing an area of product development in which there is the
potential for extensive technological  innovation in relatively short periods of
time.  The Company's  competitors  may succeed in  developing  products that are
safer or more effective than those of the Company's  potential  products.  Rapid
technological  change or  developments  by others  may  result in the  Company's
present products and potential products becoming obsolete or non-competitive.

    The Company  believes  that the  technological  attributes  of its  proposed
diagnostic imaging products, including the ease of use (e.g., single vial, rapid
imaging),  employment of technetium-99m (the most widely available radioisotope)
and its use of an  antibody  fragment  (better  liver  imaging,  decreased  HAMA
response) will enable the Company to compete effectively in the marketplace.

Employees

    As of September  28, 1998,  the Company  employed 115 persons on a full-time
basis,  24 of whom are in research and development  departments,  20 of whom are
engaged in clinical research and regulatory  affairs,  18 of whom are engaged in
operations  and   manufacturing,   and  53  of  whom  are  engaged  in  finance,
administration,  sales and marketing. Of these employees, 25 hold M.D., Ph.D. or
other  advanced  degrees.  The Company  believes that it has been  successful in
attracting skilled and experienced  scientific personnel;  however,  competition
for such  personnel  continues to be intense.  The  Company's  employees are not
covered by a collective bargaining agreement,  and the Company believes that its
relationship with its employees is excellent.

Item 2 -- Properties

    The Company's  headquarters is located at 300 American Road,  Morris Plains,
New Jersey,  where it leases  approximately 60,000 square feet. On May 29, 1998,
the Company  exercised its right to renew the lease,  which otherwise would have
expired in May 1999, for an additional term of three years expiring

                                      15
<PAGE>


in May,  2002 at a base annual  rental of  $441,000.  The lease  provides  for a
second  renewal  period of five years  expiring on May, 2007. The lease provides
for an option to purchase the facility,  subject to certain terms and conditions
as specified in the lease.  The Company's  manufacturing,  regulatory,  medical,
research and development laboratories,  finance, marketing and executive offices
are currently located in this facility,  occupying  approximately  60,000 square
feet. The Company has also completed the  construction  and equipping of a 7,500
square-foot  commercial-scale  manufacturing  facility  within the Morris Plains
headquarters,  which consists of four independent antibody manufacturing suites,
several support areas, and a QC laboratory (see  'Manufacturing').  In addition,
the Company's European Subsidiary,  Immunomedics Europe, leases executive office
space in Hillegom, The Netherlands.

Item 3 -- Legal Proceedings

    Pursuant to its 1991 agreement with Adria Laboratories Division of Erbamont,
Inc., which later became  Pharmacia,  Inc. and  subsequently  Pharmacia & Upjohn
('Pharmacia'),  the Company granted to Pharmacia an exclusive  license to market
and sell  CEA-Scan,  AFP-Scan  and  LymphoScan  products  for certain  specified
indications  in the United  States and Canada.  In June,  1994,  the Company and
Pharmacia,  in the context of discussions  directed towards  restructuring their
relationship,  agreed to release Pharmacia from certain obligations, whereby the
Company  regained  the  marketing  and  selling  rights  and  assumed  financial
responsibility  for all future  clinical,  marketing and selling  activities for
LymphoScan  and  AFP-Scan.  On August 2, 1995,  the Company  announced  that its
agreement with Pharmacia was  terminated,  and that the Company had regained the
North  American  marketing  and  selling  rights for  CEA-Scan  from  Pharmacia.
Subsequent to  termination  of the  Agreement,  the Company and  Pharmacia  were
unable to agree on the amount of a final  payment by Pharmacia to the Company to
satisfy Pharmacia's  remaining  obligations.  In June, 1996, the Company filed a
claim against  Pharmacia before the American  Arbitration  Association  claiming
damages for breach of contract and  fiduciary  duty in the amount of $60 million
plus punitive damages.  Arbitration proceedings commenced soon thereafter. Final
closing  arguments  were made on September 17, 1997.  On November 28, 1997,  the
Company was awarded damages in the amount of $1.8 million, including interest.

    As described in 'Business -- Marketing, Sales and Distribution', the Company
terminated its  agreements  with the  Mallinckrodt  Affiliates on April 6, 1998.
Pursuant to the  agreements,  the Company has the right to audit certain aspects
of performance of the Mallinckrodt Affiliates. Further, the Company has reserved
all of its rights and remedies in connection  with the  agreements  until a full
assessment of compliance  with the terms and  conditions of the  agreements  has
been completed.

    The Company is involved in various  other claims and  litigation  arising in
the normal  course of  business.  Management  believes  that the outcome of such
claims and litigation  will not have a material  adverse effect on the Company's
financial position and results of operations.

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

    No matter was  submitted to a vote of securities  holders  during the fourth
quarter of fiscal year 1998.

Executive Officers of the Registrant

    The Executive  Officers of the Company and their  positions with the Company
are as follows:
<TABLE>
<CAPTION>

Name                              Age                  Position with the Company
- ----------------------------  -----------  -------------------------------------------------
<S>                           <C>          <C>
David M. Goldenberg.........          60   Chairman of the Board and Director
Robert J. DeLuccia..........          53   President, Chief Executive Officer and Director
Hans J. Hansen..............          65   Vice President, Research and Development
Kevin F.X. Brophy...........          46   Vice President, Finance & Administration and
                                           Chief Financial Officer
Joseph E. Presslitz.........          56   Vice President, Regulatory Affairs
Melvin Snyder...............          55   Vice President, Marketing and Business
                                           Development
</TABLE>

                                      16
<PAGE>


    Each of the Executive Officers was elected as such by the Board of Directors
of the Company and holds his office at the  discretion of the Board of Directors
or until his  earlier  death or resignation,  except that Dr. Goldenberg and Mr.
DeLuccia hold their offices pursuant to  employment  agreements  (See 'Executive
Compensation').

    Dr. David M.  Goldenberg  founded the Company in July,  1982, and since that
time, has been Chairman of the Board of the Company.  Dr.  Goldenberg  served as
Chief Executive Officer from July, 1982,  through July, 1992, and from February,
1994  through  May 1998.  Dr.  Goldenberg  was  Professor  of  Pathology  at the
University of Kentucky  Medical Center from 1973 until 1983 and Director of such
University's Division of Experimental  Pathology from 1976 until 1983. From 1975
to 1980 he also served as Executive  Director of the Ephraim McDowell  Community
Cancer  Network,  Inc.,  and from 1978 to 1980 he was  President  of the Ephraim
McDowell Cancer Research  Foundation,  Inc.,  both in Lexington,  Kentucky.  Dr.
Goldenberg is a graduate of the  University  of Chicago  College and Division of
Biological  Sciences  (S.B.),  the  University of  Erlangen-Nuremberg  (Germany)
Faculty of Natural Sciences (Sc.D.),  and the University of Heidelberg (Germany)
School of Medicine  (M.D.).  He has written or co-authored more than 950 journal
articles,  book  chapters  and  abstracts  on  cancer  research,  detection  and
treatment,   and  has  researched  and  written   extensively  in  the  area  of
radioimmunodetection  using radiolabeled antibodies. In addition to his position
with the Company, Dr. Goldenberg is President of CMMI, an independent non-profit
research center,  and its clinical unit, the Garden State Cancer Center. He also
holds the position of Adjunct  Professor of Microbiology and Immunology with the
New York Medical  College in Valhalla,  New York. In 1985 and again in 1992, Dr.
Goldenberg received an 'Outstanding  Investigator grant' award from the National
Cancer Institute  ('NCI') for his work in  radioimmunodetection,  and in 1986 he
received the New Jersey Pride Award in Science and  Technology.  Dr.  Goldenberg
was  honored as the ninth Herz  Lecturer of the Tel Aviv  University  Faculty of
Life  Sciences.  In  addition,  he  received  the 1991  Mayneord  3M  Award  and
Lectureship of the British  Institute of Radiology for his  contributions to the
development  of  radiolabeled  monoclonal  antibodies  used in the  imaging  and
treatment of cancer.  Dr. Goldenberg was also named the co-recipient of the 1994
Abbott  Award by the  International  Society for  Oncodevelopmental  Biology and
Medicine.

    Robert J. DeLuccia  has over 28 years of pharmaceutical  industry experience
including sales, marketing,  new product development and general management.  In
1994, Mr. DeLuccia was appointed  President of Sanofi  Winthrop  Pharmaceuticals
U.S.,  the U.S.  subsidiary of Paris based Sanofi.  In 1984, he joined  Winthrop
Pharmaceuticals  as vice president of marketing for its imaging and  therapeutic
product  lines and held  positions  of  increasing  responsibility  in  Sterling
Winthrop  Pharmaceuticals.  His  pharmaceutical  career began in 1970 as a sales
representative for Pfizer Laboratories, and over the succeeding 14 years he rose
to the position of vice president of marketing and sales  operations of Pfizer's
Roerig Division. Mr. DeLuccia holds a master's degree in Business Administration
from Iona College.

    Dr. Hans J. Hansen has been Vice President, Research and Development,  since
March 1987. Prior to joining the Company in 1985 as Director of Cell Biology, he
was for three years the  Director  of Product  Development  at Ortho  Diagnostic
Systems, Inc., a subsidiary of Johnson & Johnson Corporation, where he developed
monoclonal antibodies for the diagnosis of leukemia and other cancers. From 1969
to 1982,  Dr.  Hansen  was with  Hoffmann-La  Roche in a variety  of  positions,
becoming  Director of the Department of Immunology in 1982. While at Hoffmann-La
Roche,  he developed the first in vitro  diagnostic  CEA  immunoassay  and had a
major  role  in  establishing  its  clinical  importance  in the  diagnosis  and
management  of cancer.  Dr.  Hansen has spent 38 years  conducting  clinical and
basic  research  in the fields of cancer and  autoimmune  disease.  His work has
resulted in the issuance of eight United States patents and over 90 publications
relating to cancer and autoimmune diseases.

    Mr. Kevin F.X.  Brophy has been Vice President,  Finance and Administration,
and  Chief Financial Officer  since January 1998.  Prior to joining the Company,
Mr.  Brophy  was  Assistant  Treasurer  with  Harris  Chemical  Group,  Inc.,  a
leveraged  buyout  group,  from  February 1996 until December 1997  From October
1980 until April 1995,  Mr.  Brophy  held  a  series of financial positions with
American Cyanamid Company  including Controller of Lederle Pharmaceuticals,  and
Director of Finance for Cyanamid Great Britain and Cyanamid Latin America. Prior
to American Cyanamid Company,  he was employed by KPMG Peat Marwick.  Mr. Brophy
is a  Certified Public Account  licensed in New Jersey.  He is a graduate of St.
Peters College and attended Fairleigh Dickinson University graduate school.

    Dr. Joseph  E.  Presslitz  has  been employed by the Company since February,
1992,  and  has  served  as  Vice President, Regulatory Affairs since September,
1997, and prior thereto as Executive Director,

                                      17
<PAGE>


Regulatory  Affairs.  From 1985 until 1992,  he held the  position of  Director,
International  Regulatory  Affairs at the Lederle Division of American Cyanamid.
From 1980 until 1985, he was Director of  Laboratories  at  Masti-Kure,  Inc., a
veterinary pharmaceutical company. Prior thereto, Dr. Presslitz spent nine years
in research and development in the areas of infectious  disease and rheumatology
at Pfizer, Inc. He received his Ph.D. in biochemistry from St. Louis University,
and post-doctoral  training in molecular biology at the Massachusetts  Institute
of Technology.

    Mr. Mel Snyder has been Vice President of Marketing and Business Development
since January 1998 after  serving as  consultant,  director of marketing,  since
February 1997. In 1975, Mr. Snyder founded  ProClinica Inc., a medical education
and marketing  communications company in New York. Over the succeeding 19 years,
its  clients   included  New  England   Nuclear,   the   predecessor  to  DuPont
radiopharmaceuticals;  the former  Hoffmann-LaRoche  Medi-Physics  division, and
Amersham.  In 1988, Mr. Snyder launched RadNET,  The Nuclear Network,  the first
online  doctor-to-doctor  computer network,  designed to enable sharing of cases
and information  among nuclear  physicians and technologists  worldwide.  He has
been active in the Society of Nuclear  Medicine since 1978. At the 1992 and 1993
SNM annual  meetings,  he ran  categorical  seminars on 'Marketing  Your Nuclear
Medicine  Department  under Managed Care.' He has lectured in the U.S. and Japan
on managed care and disease  management.  He has  consulted  for some of Japan's
largest pharmaceutical companies, on strategies for entering the U.S. healthcare
market.  For the first two years after the dissolution of the Soviet Union,  Mr.
Snyder was  consultant  to the  Ministry of Health & Welfare of the  Republic of
Ukraine,  helping that nation to convert seized Soviet  military  factories into
medical products manufacturing. Mr. Snyder holds a bachelor's degree from Lehigh
University.

                                      18
<PAGE>

                                   PART II

Item 5 -- Market For Registrant's Common Stock and Related Stockholder Matters

    The Company's Common Stock is traded on The Nasdaq National Market under the
symbol 'IMMU'. The table below sets forth for the periods indicated the high and
low sales prices for the Company's Common Stock, as reported by The Nasdaq Stock
Market.  As of September  24, 1998,  there were  approximately  1,140 holders of
record of the Company's Common Stock.

                 Fiscal Quarter Ended                      High        Low
- -------------------------------------------------------  ---------  ---------

September 30, 1996.....................................     13         6 3/8
December 31, 1996......................................      8 5/8     4 1/2
March 31, 1997.........................................      7 3/8     3 5/8
June 30, 1997..........................................      6 1/16    3 11/16
                                                               ---        ---
September 30, 1997.....................................      5 1/2     3 15/16
December 31, 1997......................................      5 1/2     3  1/8
March 31, 1998.........................................      5 1/8     2  3/4
June 30, 1998..........................................      6 5/8     3  3/4
                                                               ---        ---

Item 6 -- Selected Financial Data (fiscal year ended June 30)

<TABLE>
<CAPTION>


                                                   1998       1997       1996       1995       1994
                                                 ---------  ---------  ---------  ---------  ---------
<S>                                              <C>        <C>        <C>        <C>        <C>
                                                       (In thousands, except per share amounts)

Total revenues.................................  $   7,595  $   3,841  $   1,700  $   3,189  $   4,237
Total operating expenses.......................     19,406     17,775     15,000     14,593     19,293
Net loss prior to dividends....................    (11,811)   (13,934)   (13,300)   (11,404)   (15,056)
Dividends on preferred stock...................     --             13     --         --         --
Net loss.......................................    (11,811)   (13,947)   (13,300)   (11,404)   (15,056)
Net loss per common share......................  $   (0.32) $   (0.39) $   (0.40) $   (0.38) $   (0.50)
Weighted average shares outstanding............     36,643     35,445     32,904     30,098     30,051
Cash, cash equivalents and marketable
  securities...................................  $   7,583  $  15,024  $  28,691  $  22,814  $  25,230
Total assets...................................     14,942     22,635     35,720     28,224     31,833
Stockholders' equity(1)........................     10,526     17,446     31,153     23,629     27,395

</TABLE>
- ---------

(1) The  Company  has not paid cash  dividends  on its  Common  Stock  since its
    inception.

Item 7 -- Management's Discussion and Analysis of Financial Condition and
Results of Operations

Overview

    Statements made in this Form 10-K,  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 pursuant to the 'safe harbor' provisions of the Private
Securities  Litigation  Reform Act of 1995.  The  Company's  actual  results may
differ  materially  from  the  results  anticipated  in  these   forward-looking
statements as a result of a variety of factors,  including  those  identified in
'Business'  and elsewhere in this Annual Report on Form 10-K for the fiscal year
ended June 30, 1998.

    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.  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 the
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

                                      19
<PAGE>


Health  Protection  Branch  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,   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 for LeukoScan with the
FDA for the same indication  approved in Europe,  plus an additional  indication
for the diagnosis of acute, atypical  appendicitis.  As with all filings,  there
can be no  assurance  that  regulatory  approval  for such  indications  will be
received.

    The Company is also engaged in developing other biopharmaceutical  products,
which are in various stages of development and clinical testing. The Company has
not achieved profitable  operations and does not anticipate achieving profitable
operations  during  fiscal year 1999.  The Company will  continue to  experience
operating  losses  until  such  time,  if at all,  that  it is able to  generate
sufficient revenues from sales of CEA-Scan,  LeukoScan and its other proposed in
vivo products.  Further, the Company's working capital will continue to decrease
until such time, if at all,  that the Company is able to generate  positive cash
flow from operations or until such time, if at all, that the Company receives an
additional  infusion  of cash from the sale of the  Company's  securities,  from
other financing or from corporate  alliances to finance the Company's  operating
expenses and capital expenditures.

Results of Operations

Fiscal Year 1998 compared to Fiscal Year 1997

    Revenues for fiscal year 1998 were  $7,595,000  as compared to $3,841,000 in
fiscal year 1997, representing an increase of $3,754,000.  The product sales for
fiscal year 1998 were  $4,049,000 as compared to $1,387,000 in fiscal year 1997,
representing  an  increase  of  $2,662,000.  The  increase  in product  sales is
attributable  to  increased  market  acceptance  of  CEA-Scan  and the launch of
LeukoScan  in April  1997.  Royalties  and  license  fees for  fiscal  year 1998
decreased by $554,000,  primarily due to the receipt of a nonrecurring  $500,000
license fee from a corporate  partner in fiscal 1997.  Research and  development
revenue for fiscal year 1998  increased  by $550,000 as compared to fiscal 1997,
due to the recognition of previously  deferred  revenue received from Pharmacia.
Interest  and other  income  for  fiscal  year  1998  increased  by  $1,096,000,
primarily due to the receipt of an arbitration award of $1.8 million,  including
interest,  in its dispute with Pharmacia offset by a decrease in interest income
of  $721,000  due to  reduced  levels of cash  available  for  investments  (see
'Liquidity and Capital Resources').

    Total operating  expenses for fiscal year 1998 were  $19,406,000 as compared
to  $17,775,000  in fiscal year 1997,  representing  an increase of  $1,631,000.
Research and  development  costs decreased by $1,376,000 as compared to the same
period  in 1997,  primarily  due to a  decrease  in the  level  of  expenditures
required to obtain validation of the Company's  manufacturing facility and lower
cost associated with reduced patient  enrollment for clinical trials.  Sales and
marketing  expenses  for  fiscal  year  1998  were  $5,380,000  as  compared  to
$1,792,000  in  fiscal  year  1997,  representing  an  increase  of  $3,588,000,
primarily due to expenses of  $1,753,000  associated  with the  Company's  newly
hired  full-time  oncology sales force and operating  expenses for  Immunomedics
Europe  which  increased by  $1,632,000  as compared to the same period of 1997.
General and  administrative  costs for fiscal year 1998 decreased by $758,000 as
compared to the same period of 1997,  primarily  due to reduced legal costs as a
result of the  conclusion  of the  Pharmacia  arbitration,  which was settled in
November 1997.

    Net loss for the fiscal year 1998 was  $11,811,000,  or $0.32 per share,  as
compared to a net loss of $13,947,000,  or $0.39 per share, in fiscal year 1997.
The lower net loss of $2,136,000 in 1998 as compared to 1997 primarily  resulted
from  higher  revenues,  partially  offset  by  higher  operating  expenses,  as
discussed  above.  In  addition,  the net loss per  share  for  fiscal  1998 was
impacted by the higher weighted average number of shares outstanding during such
period as compared to fiscal 1997,  which  increase was  principally  due to the
conversion  of  the  Company's  preferred  stock  (see  'Liquidity  and  Capital
Resources').

                                      20
<PAGE>


Fiscal Year 1997 compared to Fiscal Year 1996

    Revenues for fiscal year 1997 were  $3,841,000  as compared to $1,700,000 in
fiscal year 1996, representing an increase of $2,141,000.  The product sales for
fiscal  year 1997 were  $1,387,000  as  compared to $55,000 in fiscal year 1996,
representing  an increase of $1,332,000  as the product  launch for CEA-Scan and
LeukoScan  did not  occur  until  October  1996 and  April  1997,  respectively.
Royalties and license fees for fiscal year 1997 increased by $456,000, primarily
due to the  receipt of a  nonrecurring  $500,000  license  fee from a  corporate
partner in fiscal 1997.  Research and  development  revenue for fiscal year 1997
increased by  $471,000,  as compared to fiscal  1996,  due to increased  grants.
Interest  and other  income for  fiscal  year 1997  decreased  by  $236,000,  as
compared to fiscal 1996,  primarily due to reduced  levels of cash available for
investments (see 'Liquidity and Capital Resources').

    Total  operating  expenses  for the  fiscal  year 1997 were  $17,775,000  as
compared  to  $15,000,000  in fiscal  year 1996,  representing  an  increase  of
$2,775,000.  Research and development costs increased by $610,000 as compared to
fiscal 1996 due to expenses  associated  with the  validation  of the  Company's
manufacturing  facility and expenses related to the filing of the application to
the FDA for approval of LeukoScan . Sales and marketing expenses for fiscal year
1997 were  $1,792,000 as compared to $630,000 in fiscal year 1996,  representing
an increase of $1,162,000,  primarily due to marketing  expenses for CEA-Scan of
$674,000 and  operating  expenses  for  Immunomedics  Europe which  increased by
$488,000 as compared to the same period of 1996. The general and  administrative
costs increased by $1,017,000 as compared to fiscal 1996, of which, $944,000 was
principally  due to  higher  legal  expenses  incurred  in  connection  with the
arbitration claim against Pharmacia.

    Net loss for the fiscal year 1997 was  $13,947,000,  or $0.39 per share,  as
compared to a net loss of $13,300,000,  or $0.40 per share, in fiscal year 1996.
The greater net loss resulted principally from higher general and administrative
expense partially offset by increased sales and royalty  revenues,  as explained
above.  The net loss per share for the fiscal  1997 was  impacted  by the higher
weighted average number of shares  outstanding during such period as compared to
fiscal  1996,  which  increase  was  principally  due to the  conversion  of the
Company's preferred stock (see 'Liquidity and Capital Resources').

Liquidity and Capital Resources

    At  June  30,  1998,   the  Company  had  working   capital  of  $5,466,000,
representing a decrease of $6,287,000 from June 30, 1997, and had no obligations
other  than  certain  lease  obligations  (see Note 11 of Notes to  Consolidated
Financial Statements). The decrease in working capital resulted principally from
the funding of operating expenses and capital expenditures.

    On June 27,  1996,  the Company  completed an equity  financing  pursuant to
Regulation S under the  Securities  Act of 1933  ('Regulation  S'),  pursuant to
which  several  foreign  investors  purchased  200,000  shares  of 5%  Series  D
Convertible  Preferred  Stock (the 'Series D Preferred')  for  $10,000,000.  The
terms of the transaction allowed the investors, at their discretion,  to convert
the Series D  Preferred  into  shares of the  Company's  common  stock  during a
24-month period which began in June 1996, at a price equal to 89% of the average
market  price per share over a 20-day  trading  period  surrounding  the date of
conversion.   Dividends  on  the  Series  D  Preferred  were  payable  annually,
commencing June 30, 1997, on all shares of Series D Preferred that have not been
converted into common stock as of the dividend payment date. In August 1997, the
Company made a dividend payment of $12,498 of the Series D Preferred. As of June
30,  1998,  all 200,000  shares of Series D Preferred  had been  converted  into
1,795,771 shares of the Company's common stock.

    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 may receive up to an  aggregate  of $30 million  over a
36-month period.  During each three-month period (each, an 'Investment Period'),
the Company, subject to the satisfaction of certain conditions,  can require the
Investor to  purchase  shares of the  Company's  common  stock for an  aggregate
purchase  price of between $1.0 million and $2.5 million,  and the Investor,  at
its option,  may  purchase  additional  shares of common  stock for an aggregate
purchase price of $1.0 million. The Company retains the right to provide that no
purchases can be made in any given  Investment  Period.  The Investor may select
the dates on which the purchase of shares of the

                                      21
<PAGE>


Company's  common stock will occur.  The purchase  price per share to be paid by
the Investor for the shares of the  Company's  common stock  acquired  under the
Equity Line will equal 98% of the lowest  sales price of the common stock during
the three  trading  days  immediately  preceding  the notice of  purchase by the
Investor.  The Investor's  obligation to purchase shares of the Company's common
stock under the Equity Line is subject to various conditions,  including,  among
other things,  the price of the Company's common stock being at least such price
as the  Company  may from time to time set as the  minimum  purchase  price.  In
addition, the Investor is not required to purchase, in any Investment Period, an
amount in excess of 8% of the product of the daily  average value of open market
trading of the common  stock and the  number of trading  days in the  Investment
Period during either the current or immediately preceding Investment Period. The
Company  granted the Investor the right to purchase an  additional  $1.0 million
during the  Investment  Period  ended May 31,  1998.  As of June 30,  1998,  the
Company  received a total of $4.5 million for which the Company issued 1,056,835
shares of common stock.

    In  connection  with  entering  into the Equity Line with an  Investor,  the
Investor  received a four-year warrant (the 'Warrant') to purchase 50,000 shares
of the common  stock at an  exercise  price  equal to $7.5375 per share (180% of
closing sales price of common stock at the time of issuance).  In addition,  the
Company has agreed to issue to the Investor,  at the end of each calendar  year,
an additional four-year warrant (each, an 'Additional Warrant' and collectively,
the 'Additional  Warrants') to purchase common stock in an amount equal to 5,000
shares for each $500,000 of common stock  purchased by the Investor  during such
year. The exercise price will be equal to 180% of the weighted  average purchase
price of the common stock  purchased by the Investor  during the year,  provided
that the number of shares issuable upon exercise of all the Additional  Warrants
will not exceed 125,000.

    In February 1994, the Company entered into a master lease  agreement,  which
was subsequently amended,  pursuant to which the Company may lease equipment for
research, development and manufacturing purposes having an aggregate acquisition
cost of up to  $2,200,000.  The basic  lease  payments  under the  master  lease
agreement  are  determined  based on current  market  rates of  interest  at the
inception  of each  equipment  schedule  take-down,  and are  payable in monthly
installments  over a four-year  period.  The lease  agreement  contains an early
purchase option, at an amount which is deemed to be fair value.

    On November 1, 1996,  December 9, 1996, April 1, 1997 and September 1, 1998,
the Company exercised early purchase options on equipment leased on February 14,
1994, April 1, 1994, June 1, 1994 and August 26, 1994,  respectively.  Under the
lease agreement,  continued compliance with certain financial ratios is required
and,  in the event of  default,  the  Company  will be  required  to  provide an
irrevocable letter of credit which is generally equal to the outstanding balance
of lease payments due at the time of default,  which was approximately  $412,000
at June 30, 1998. As of June 30, 1998,  the Company was not in  compliance  with
certain of these ratios, but the lessor has not yet declared an event of default
or  requested  a letter of credit.  The  Company  does not  believe  that such a
request  would have a material  adverse  effect on the  Company.  As of June 30,
1998, the Company has leased equipment with a cost basis aggregating  $1,247,000
under the master lease  agreement  and recorded  lease  expense for fiscal years
1998,  1997 and 1996 of  $348,000,  $497,000  and  $406,000,  respectively.  The
Company has a commitment  to refinance the  outstanding  lease  obligations  and
anticipates closing during the second quarter of fiscal year 1999.

    The  Company's  liquid  asset  position,  as  measured  by  its  cash,  cash
equivalents  and  marketable  securities,  was  $7,583,000  at  June  30,  1998,
representing a decrease of $7,441,000 from June 30, 1997. It is anticipated that
working  capital and cash,  cash  equivalents,  and marketable  securities  will
decrease during fiscal year 1999 as a result of planned  operating  expenses and
capital expenditures, offset in part by projected revenues from product sales in
the U. S. and Europe.  However,  there can be no assurance,  as to the amount of
revenues,  if any, these products will provide. At present, the Company believes
that its current cash  resources and funds  available  under the Equity Line, as
discussed above, will be sufficient to fund anticipated  operating  expenses and
capital expenditures through calendar year 1999.

    In  addition  to the funds  available  under the Equity  Line,  the  Company
believes that it may require additional  financial resources by the beginning of
calendar year 2000 in order for it to continue its

                                      22
<PAGE>


projected levels of research and development and clinical trials of its proposed
products and regulatory filings for new indications of existing products.

    In addition,  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.  Also, 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.  There can be no  assurance  that the Company will be able to obtain
additional funds in the future.

Impact of Year 2000

    The  Company  is in the  process  of  conducting  a review  of its  business
systems,  including its computer systems and  manufacturing  equipment,  and has
sent written  inquiries to its customers,  distributors  and vendors as to their
progress in identifying  and addressing  problems that their systems may face in
correctly  interpreting  and  processing  date  information  as  the  year  2000
approaches and is reached. This review is expected to be complete by March 1999.
Based on this  review,  the Company  will  implement a plan to achieve year 2000
compliance.  The Company believes that it will achieve year 2000 compliance in a
manner which will be non-disruptive to its operations.  In addition, the Company
has commenced work on various types of contingency planning to address potential
problem areas with internal  systems,  suppliers and other third  parties.  Year
2000  compliance  should  not have a  material  adverse  effect on the  Company,
including the Company's financial condition, results of operations or cash flow.
The Company  has  incurred  no costs to date  related to year 2000.  The Company
estimates the cost of its year 2000 efforts to be  approximately  $250,000.  The
total cost estimate is based on management's  current  assessment and is subject
to change.

    However,  the Company may  encounter  problems  with supplier and or revenue
sources which could adversely affect the Company's financial condition,  results
of operations or cash flow. The Company cannot accurately predict the occurrence
and or outcome of any such  problems,  nor can the dollar amount of such problem
be estimated. In addition,  there can be no assurance that the failure to ensure
year 2000  compliance by a third party would not have a material  adverse effect
on the Company.

                                      23
<PAGE>

Item 8 -- Financial Statements and Supplementary Data
<TABLE>

                         PART I. - FINANCIAL INFORMATION

                               IMMUNOMEDICS, INC.

                           CONSOLIDATED BALANCE SHEETS


<CAPTION>

                                       June 30,                 June 30,
                                       1998                     1997
                                       ______________           ______________
<S>                                    <C>                      <C>
ASSETS
Current Assets
  Cash and cash equivalents            $    7,568,147                6,013,355
  Marketable securities                        14,845                9,010,275
  Accounts receivable                       1,039,477                  559,017
  Inventory                                   913,927                  690,695
  Other current assets                        345,491                  667,983
                                       ______________           ______________
Total Current Assets                        9,881,887               16,941,325

Property and equipment, net of
   accumulated depreciation of
   $5,815,000 and $4,852,000 at
   June 30, 1998 and 1997,
   respectively                             5,059,935                5,693,193
                                       ______________           ______________
TOTAL ASSETS                           $   14,941,822               22,634,518
                                       ______________           ______________
</TABLE>
<TABLE>

<CAPTION>
LIABILITIES AND STOCKHOLDERS' EQUITY
<S>                                    <C>                      <C>
Current Liabilities
  Accounts Payable                     $    1,831,458                2,360,256
  Other current liabilities                 2,584,769                2,827,970
                                       ______________           ______________
Total Current Liabilities                   4,416,227                5,188,226

Commitments and Contingencies
  Preferred stock; $.01 par value,
   authorized 10,000,000 shares;
   Series D convertible, authorized
   200,000 shares; issued and
   outstanding none and 4,999
   shares at June 30, 1998 and 1997,
   respectively                                     0                       50
  Common stock; $.01 par value,
   authorized 70,000,000 shares;
   issued and outstanding 37,586,087
   and 36,297,170 shares at
   June 30, 1998 and 1997, respectively       375,861                  362,971
  Capital contributed in excess
   of par                                  97,987,728               93,111,855
  Accumulated deficit                     (87,837,979)             (76,027,392)
  Accumulated net unrealized
   loss on securities                             (15)                  (1,192)
                                       ______________           ______________
Total stockholders' equity                 10,525,595               17,446,292
                                       ______________           ______________
TOTAL LIABILITIES AND
STOCKHOLDERS' EQUITY                   $   14,941,822               22,634,518
                                       ______________           ______________
</TABLE>
See accompanying notes to consolidated financial statements.

                                       24
<PAGE>
<TABLE>

                               IMMUNOMEDICS, INC.

                      CONSOLIDATED STATEMENTS OF OPERATIONS



<CAPTION>
                                            Years ended June 30,
                            __________________________________________________

                            1998               1997              1996
                            ____________        ___________       ___________
<S>                         <C>                <C>            <C>
REVENUES:
  Product sales             $  4,049,031          1,387,042            54,609
  Royalties and licence
    fees                          33,751            587,764           131,278
  Research and development     1,170,252            620,543           150,000
  Interest and other           2,342,505          1,246,118         1,364,205
                            ____________        ___________        ___________
                               7,595,539          3,841,467         1,700,092
                            ____________        ___________        ___________

COST AND EXPENSES:
  Cost of goods sold             191,343             14,508             28,124
  Research and development    11,738,155         13,113,991         12,503,837
  Sales and marketing          5,379,728          1,792,117            630,091
  General and administrative   2,096,900          2,854,884          1,837,517
                            ____________        ___________        ___________
                              19,406,126         17,775,500         14,999,569
                            ____________        ___________        ___________
Net loss prior to
 dividends                   (11,810,587)       (13,934,033)       (13,299,477)
Dividends                              0             12,498                  0
                            ____________        ___________        ___________
Net Loss                    $(11,810,587)       (13,946,531)       (13,299,477)
                            ____________        ___________        ___________
Net loss per basic and
 diluted common share       $      (0.32)             (0.39)             (0.40)
                            ____________        ___________        ___________
Weighted average number of
 common shares outstanding    36,643,319         35,445,033         32,903,764
                            ____________        ___________        ___________
</TABLE>
See accompanying notes to consolidated financial statements.

                                       25
<PAGE>
<TABLE>
                                                                       IMMUNOMEDICS, INC.

                                                  Consolidated Statements of Changes in Stockholders' Equity
<CAPTION>

                                         Convertible              Common            Capital                  Accumulated
                                       Preferred Stock            Stock           Contributed                Unrealized
                                    --------------------------------------------   in Excess   Accumulated   Gain/(Loss)
                                       Shares   Amount      Shares       Amount     of Par       Deficit    On Securities     Total
                                    -----------------------------------------------------------------------------------------------
<S>                                   <C>      <C>       <C>           <C>       <C>          <C>             <C>      <C>
Balance, at June 30, 1995...........  124,527  $ 1,245   30,624,585    $ 306,246 $ 72,098,771 $ (48,781,384)  $ 4,297  $ 23,629,175
  Issuance of common stock
    in exchange for convertible
    preferred stock (Series B), net. (124,527)  (1,245)   2,000,584       20,006      (18,761)            0         0             0
  Issuance of convertible
    preferred stock (Series C), net.  200,000    2,000            0            0    9,980,500             0         0     9,982,500
  Issuance of common stock
    in exchange for convertible
    preferred stock (Series C), net. (171,585)  (1,716)   1,356,041       13,560      (11,844)            0         0             0
  Issuance of convertible
    preferred stock (Series D), net.  200,000    2,000            0            0    9,980,500             0         0     9,982,500
  Exercise of options to
    purchase common stock...........        0        0      324,275        3,243      865,183             0         0       868,426
  Net unrealized loss on securities.        0        0            0            0            0             0    (9,918)       (9,918)
  Net loss..........................        0        0            0            0            0   (13,299,477)        0   (13,299,477)
- -----------------------------------------------------------------------------------------------------------------------------------
Balance, at June 30, 1996...........  228,415      2,284 34,305,485      343,055   92,894,349   (62,080,861)   (5,621)   31,153,206
  Issuance of common stock
    in exchange for convertible
    preferred stock (Series C), net.  (28,415)      (284)   182,646        1,826       (1,542)            0         0             0
Issuance of common stock
    in exchange for convertible
    preferred stock (Series D), net. (195,001)    (1,950) 1,733,439       17,334      (15,384)            0         0             0
  Exercise of options to
    purchase common stock...........        0          0     75,600          756      234,432             0         0       235,188
  Dividend on preferred stock.......        0          0          0            0                    (12,498)        0       (12,498)
  Net unrealized gain on securities.        0          0          0            0            0             0     4,429         4,429
  Net loss..........................        0          0          0            0            0    13,934,033)        0   (13,934,033)
- -----------------------------------------------------------------------------------------------------------------------------------
Balance, at June 30, 1997...........    4,999         50 36,297,170      362,971   93,111,855   (76,027,392)   (1,192)   17,446,292
  Issuance of common stock
    in exchange for convertible
    preferred stock (Series D), net.   (4,999)       (50)    62,332          623         (573)            0         0             0
  Issuance of common stock
    pursuant to Equity Line,  net...        0          0  1,056,835       10,569    4,446,931             0         0     4,457,500
  Exercise of options to
    purchase common stock...........        0          0    169,750        1,698      429,515             0         0       431,213
  Net unrealized gain on securities.        0          0          0            0            0             0     1,177         1,177
  Net loss..........................        0          0          0            0            0   (11,810,587)        0   (11,810,587)
- -----------------------------------------------------------------------------------------------------------------------------------
                                    ===============================================================================================
Balance, at June 30, 1998                   0        $ 0 37,586,087    $ 375,861 $ 97,987,728 $ (87,837,979)    $ (15) $ 10,525,595
                                    ===============================================================================================
</TABLE>
See accompanying notes to consolidated financial statements.

                                       26
<PAGE>
<TABLE>


                               IMMUNOMEDICS, INC.

                      CONSOLIDATED STATEMENTS OF CASH FLOWS



<CAPTION>

                                             Years ended June 30,
                                       1998          1997           1996
                                       ____________  ____________  ____________
<S>                                    <C>           <C>           <C>
Cash Flows From Operating Activities:
  Net loss                             $(11,810,587)  (13,946,531)  (13,299,477)

Adjustments to reconcile net loss to
 net cash used in operating
 activities:
  Depreciation and amortization             962,943     1,139,163       944,282
  Amortization of bond premium                    0         7,245        61,632
  Change in operating assets and
   liabilities:
    Accounts receivable                    (480,460)     (555,880)           33
    Inventories                            (223,232)     (497,023)     (193,672)
    Other current assets                    322,492        54,171       (37,650)
    Accounts payable                       (528,798)      716,687)     (301,837)
    Other current liabilities              (243,201)      (95,229)      273,297
                                       ____________   ___________  ____________
Net Cash Used In Operating
 Activities                            $(12,000,843)  (13,177,397)  (12,553,392)
                                       ____________   ___________  ____________

Cash Flows Provided by (Used in)
 Investing Activities:
  Purchase of marketable securities     (10,345,629)  (36,095,876)  (32,047,487)
  Proceeds from maturities of
   marketable securities                 19,342,236    42,127,605    32,582,485
  Additions to property and
   equipment                               (329,685)     (722,165)   (2,331,869)
                                       ____________   ___________  ____________
Net cash provided by (Used in)
 investing activities                  $  8,666,922     5,309,564    (1,796,871)
                                       ____________   ___________  ____________

Cash Flows Provided by
 Financing Activities:
  Issuance of convertible stock, net              0             0    19,965,000
  Issuance of common stock, net           4,457,500             0             0
  Exercise of stock options                 431,213       235,188       868,426
                                       ____________   ___________  ____________
Net cash provided by financing
 activities                            $  4,888,713       235,188    20,833,426
                                       ____________   ___________  ____________

Increase / (decrease) in cash and
 cash equivalents                         1,554,792    (7,632,645)    6,483,163
Cash and Cash Equivalents, at
 beginning of year                        6,013,355    13,646,000     7,162,837
                                       ____________   ___________  ____________
Cash and Cash Equivalents, at
 end of year                           $  7,568,147     6,013,355    13,646,000
                                       ____________   ___________  ____________
                                       ____________   ___________  ____________
</TABLE>
See accompanying notes to consolidated financial statements.


                                       27
<PAGE>

                              IMMUNOMEDICS, INC.
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Business Overview

    Immunomedics,  Inc. (the 'Company') is engaged in  researching,  developing,
manufacturing   and   marketing   biopharmaceutical    products,    particularly
antibody-based  diagnostics and therapeutics for cancer and infectious diseases.
The Company  currently  markets and sells  CEA-Scan'r' in the U.S., and CEA-Scan
and LeukoScan'r' throughout Europe and in certain other markets outside the U.S.

    The Company's  operations encompass all the risks inherent in developing and
expanding a new business enterprise,  including: (1) a limited operating history
and uncertainty regarding the timing and amount of future revenues to be derived
from the Company's  technology;  (2)  obtaining  future  capital as needed;  (3)
attracting  and retaining key  personnel;  and (4) a business  environment  with
heightened  competition,   rapid  technological  change  and  strict  government
regulation.

2. Summary of Significant Accounting Policies

Principles of Consolidation

    The consolidated  financial statements include the accounts of Immunomedics,
Inc. and its wholly-owned subsidiary.  All significant intercompany balances and
transactions have been eliminated in consolidation.

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.

    The Company's  investments in cash equivalents and marketable securities are
available  for  sale  to  fund  growth  in  operations  as  the  Company  begins
commercialization of its products. The portfolio primarily consists of U.S.
government securities and corporate bonds.

Concentration of Credit Risk

    The  Company  invests  its  cash  in U.S.  Government  securities  and  debt
instruments  of  financial  institutions  and  corporations  with strong  credit
ratings. The Company has established  guidelines relative to diversification and
maturities  that  are  designed  to help  ensure  safety  and  liquidity.  These
guidelines are  periodically  reviewed to take advantage of trends in yields and
interest  rates.  During  fiscal  year 1998 and 1997,  one  company  represented
approximately 58% and 99%, respectively, of the Company's product sales.

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.

Property and Equipment

    Property  and  equipment  are  stated  at  cost  and  are  depreciated  on a
straight-line  basis  over  the  estimated  useful  lives  (5-10  years)  of the
respective assets. Leasehold improvements are capitalized and amortized over the
lesser of the life of the lease or the estimated  useful life of the asset.  The
Company reviews  long-lived assets for impairment  whenever events or changes in
business  circumstances  occur that  indicate  that the  carrying  amount of the
assets may not be  recoverable.  The  Company  assesses  the  recoverability  of
long-lived  assets held and to be used based on  undiscounted  cash  flows,  and
measures the impairment,  if any, using discounted cash flows.  SFAS No. 121 has
not had a material  impact on the  Company's  consolidated  financial  position,
operating results or cash flows.

                                      28
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

Revenue Recognition

    Payments  received under contracts to fund certain  research  activities are
recognized  as  revenue  in the  period in which  the  research  activities  are
performed.  Payments received in advance which are related to future performance
are deferred and recognized as revenue when the research projects are performed.

    Non-refundable payments received under licensing arrangements are recognized
as revenue in the period in which they are received.

    Revenue from the sale of  diagnostic  products is  recognized at the time of
shipment.

Research and Development Costs

    Research and development costs are expensed as incurred.

Income Taxes

    Income  taxes are  accounted  for under  the  asset  and  liability  method.
Deferred  tax  assets  and  liabilities   relate  to  the  expected  future  tax
consequences  of events that have been  recognized  in the  Company's  financial
statements  and tax  returns.  The Company  has not  recorded  any tax  benefits
associated with its net deferred tax assets.

Net Loss Per Share

    Basic and  diluted  loss per  common  share is based on the net loss for the
relevant period, adjusted for Preferred Stock dividends, divided by the weighted
average  number of shares  issued and  outstanding  during the  period.  For the
purposes of the diluted 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 years ended June 30,
1998, 1997 and 1996. The Company has certain securities  outstanding at June 30,
1998 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.

Use of Estimates

    The  preparation  of  financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure  of  contingent  assets  and  liabilities  at the  date of  financial
statements and the reported amounts of revenues and expenses during the reported
period. Actual results could differ from those estimates.

Employee Stock Options

    The Company  applies  Accounting  Principles  Board ('APB')  Opinion No. 25,
'Accounting  for Stock  Issued to  Employees,'  and  related  interpretation  in
accounting  for stock options  issued to employees.  Employee  stock options are
granted with an exercise price equal to the market price and, in accordance with
APB No. 25, compensation expense is not recognized.  Effective July 1, 1996, the
Company  adopted  the  disclosure  provisions  of SFAS No. 123,  Accounting  for
Stock-Based  Compensation.  For the fair  value of the  employee  stock  options
issued, see Note 7.

Financial Instruments

    The  carrying  amounts of cash,  marketable  securities,  and other  current
assets and  current  liabilities  approximate  fair value due to the  short-term
maturity of these instruments.

Reclassification

    Certain 1996 and 1997 balances have been reclassified to conform to the 1998
presentation.

3. Marketable Securities

    The Company utilizes Statement of Financial Accounting Standards Number
115 ('SFAS No. 115'), 'Accounting for Certain Investments in Debt and Equity
Securities,' to account for

                                      29
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

investments in marketable securities. Under this accounting standard, securities
for which there is not the  positive  intent and ability to hold to maturity are
classified  as  available-for-sale  and are  carried at fair  value.  Unrealized
holding gains and losses on  securities  classified  as  available-for-sale  are
carried as a separate  component of stockholders'  equity. The Company considers
all of its current investments to be available-for-sale.  Consequently, pursuant
to SFAS No. 115, for the years ended June 30, 1998 and 1997,  unrealized holding
losses  of $0  and  $1,000,  respectively,  have  been  recorded  in a  separate
component of stockholders'  equity.  Marketable  securities at June 30, 1998 and
1997 consist of the following:

<TABLE>
<CAPTION>

                                                           Fair       Unrealized
                                                Cost      Market        Holding
June 30, 1998                                   Basis      Value      Gain/(Loss)
- --------------------------------------------  ---------  ---------  ---------------
<S>                                           <C>        <C>        <C>
Securities with contractual  maturities from date of Acquisition of greater than
  one year:
    U.S. Debt Securities....................  $  15,000  $  15,000     $  --
                                              ---------  ---------       -------
                                              ---------  ---------       -------
        Total Marketable Securities.........  $  15,000  $  15,000     $  --
                                              ---------  ---------       -------
                                              ---------  ---------       -------

                                                           Fair       Unrealized
                                                Cost      Market        Holding
June 30, 1997                                   Basis      Value      Gain/(Loss)
- --------------------------------------------  ---------  ---------  ---------------

Securities with  contractual  maturities from date of Acquisition of one year or
  less:
    U.S. Debt Securities....................  $2,459,000 $2,459,000    $  --
    Corporate Debt Securities...............  6,437,000  6,437,000        --
                                              ---------  ---------       -------
                                              $8,896,000 $8,896,000    $  --
                                              ---------  ---------       -------
                                              ---------  ---------       -------
Securities with contractual  maturities from date of Acquisition of greater than
  one year:
    U.S. Debt Securities....................  $ 115,000  $ 114,000     $  (1,000)
                                              ---------  ---------       -------
                                              ---------  ---------       -------
        Total Marketable Securities.........  $9,011,000 $9,010,000    $  (1,000)
                                              ---------  ---------       -------
                                              ---------  ---------       -------
</TABLE>

4. Inventory

    Inventory consists of the following at June 30:
<TABLE>
<CAPTION>

                                                                    1998       1997
                                                                  ---------  ---------
<S>                                                               <C>        <C>
Finished goods..................................................  $ 607,000  $ 691,000
Raw materials...................................................    307,000     --
                                                                  ---------  ---------
                                                                  $ 914,000  $ 691,000
                                                                  ---------  ---------
                                                                  ---------  ---------
</TABLE>

5. Property and Equipment

    Property and equipment consists of the following at June 30:
<TABLE>
<CAPTION>

                                                                 1998       1997
                                                              ----------  ---------
<S>                                                           <C>         <C>
Machinery and equipment.....................................  $2,909,000  $2,857,000
Leasehold improvements......................................   6,564,000   6,463,000
Furniture and fixtures......................................     666,000     637,000
Computer equipment..........................................     736,000     588,000
                                                              ----------  ---------
                                                              10,875,000  10,545,000
Accumulated depreciation and amortization...................  (5,815,000) (4,852,000)
                                                              ----------  ---------
                                                              $5,060,000  $5,693,000
                                                              ----------  ---------
                                                              ----------  ---------
</TABLE>

                                      30
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

    Fully amortized property and equipment  totaling  $1,553,000 were retired in
fiscal year 1997.

6. Other Current Liabilities

    Included  in other  current  liabilities  are  amounts  payable  to  medical
institutions   participating  in  the  Company's   clinical  trial  programs  of
approximately  $568,000  and  $458,000 at June 30, 1998 and 1997,  respectively.
Also  included are amounts  payable to various  legal  counsel of  approximately
$178,000 and $417,000, and accrued health insurance liabilities of approximately
$239,000 and $239,000 at June 30, 1998 and 1997, respectively.  Further included
at June 30, 1998 and 1997 is $292,000 and $892,000, respectively,  received from
a former corporate  partner for the funding of ongoing clinical trials (see Note
10).

7. Stockholders' Equity

    The Certificate of Incorporation of the Company authorizes 10,000,000 shares
of  preferred  stock at $.01 par value per  share.  The  preferred  stock may be
issued from time to time in one or more  series,  with such  distinctive  serial
designations,  rights and  preferences  as shall be  determined  by the Board of
Directors.

    On June 27,  1996,  the Company  completed an equity  financing  pursuant to
Regulation S,  pursuant to which several  foreign  investors  purchased  200,000
shares of 5% Series D Convertible Preferred Stock (the 'Series D Preferred') for
$10,000,000.  The  terms of the  transaction  allowed  the  investors,  at their
discretion,  to convert  the Series D  Preferred  into  shares of the  Company's
common stock during a 24-month period which began in June 1996, at a price equal
to 89% of the  average  market  price per  share  over a 20-day  trading  period
surrounding  the date of conversion.  As of June 30, 1998, all 200,000 shares of
Series D Preferred had been  converted  into  1,795,771  shares of the Company's
common stock.

    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 may receive up to an  aggregate  of $30 million  over a
36-month period.  During each three-month period (each, an 'Investment Period'),
the Company, subject to the satisfaction of certain conditions,  can require the
Investor to  purchase  shares of the  Company's  common  stock for an  aggregate
purchase price of between $1.0 million and $2.5 million and the Investor, at its
option, may purchase additional shares of common stock for an aggregate purchase
price  of $1.0  million.  The  Company  retains  the  right to  provide  that no
purchases can be made in any given  Investment  Period.  The Investor may select
the dates on which the  purchase of shares of the  Company's  common  stock will
occur. The purchase price per share to be paid by the Investor for the shares of
the Company's  common stock acquired under the Equity Line will equal 98% of the
lowest sales price of the common stock during the three trading days immediately
preceding the notice of purchase by the Investor.  The Investor's  obligation to
purchase  shares of the Company's  common stock under the Equity Line is subject
to various conditions, including, among other things, the price of the Company's
common  stock being at least such price as the Company may from time to time set
as the minimum  purchase  price.  In  addition,  the Investor is not required to
purchase,  in any Investment Period, an amount in excess of 8% of the product of
the daily  average  value of open  market  trading of the  common  stock and the
number of trading days in the  Investment  Period  during  either the current or
immediately  preceding  Investment  Period. The Company granted the Investor the
right to purchase an additional $1.0 million during the Investment  Period ended
May 31, 1998. As of June 30, 1998, the Company  received a total of $4.5 million
for which the Company issued 1,056,835 shares of common stock.

    In  connection  with  entering  into the Equity Line with an  Investor,  the
Investor  received a four-year warrant (the 'Warrant') to purchase 50,000 shares
of the common  stock at an  exercise  price  equal to $7.5375 per share (180% of
closing sales price of common stock at the time of issuance).  In addition,  the
Company has agreed to issue to the Investor,  at the end of each calendar  year,
an additional four-year warrant (each, an 'Additional Warrant' and collectively,
the 'Additional  Warrants') to purchase common stock in an amount equal to 5,000
shares for each $500,000 of common stock purchased by the

                                      31
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

Investor  during  such  year.  The  exercise  price will be equal to 180% of the
weighted  average  purchase price of the common stock  purchased by the Investor
during the year,  provided  that the number of shares  issuable upon exercise of
all the Additional Warrants will not exceed 125,000.

    Under the terms of the  Company's  1983 Stock Option  Plan,  as amended (the
'1983  Plan'),  stock options were granted to employees and members of the Board
of  Directors,  as  determined  by the  Compensation  Committee  of the Board of
Directors,  at fair market value,  become exercisable at 25% per year on each of
the first through fourth  anniversaries  of the date of grant,  and terminate if
not exercised  within ten years.  In June 1993, the 1983 Plan expired,  although
options granted under the 1983 plan which have not terminated may continue to be
exercised. On November 5, 1992, at the Company's Annual Meeting of Stockholders,
adoption of the Company's 1992 Stock Option Plan (the '1992 Plan') was ratified.
The basic  terms of the 1992 Plan are  substantially  similar to those under the
Company's  1983 Plan.  Under the 1992 Plan,  3,000,000  shares  were  originally
reserved for possible future  issuance upon exercise of stock options,  of which
1,025,875  were still  available at June 30, 1998 for future grant.  At June 30,
1998,  2,957,375  shares of common  stock  were  reserved  for  possible  future
issuance  upon  exercise of stock  options  outstanding  and future stock option
grants.

    Pursuant to the terms of the 1992 Plan, each outside Director of the Company
who had been a Director prior to July 1 is granted, on the first business day of
July of each year, an option to purchase  10,000 shares of the Company's  common
stock at fair market value.  On July 1, 1998,  50,000 stock options were granted
to these Directors.

    The  Company has adopted  the  disclosure-only  provisions  of SFAS No. 123,
Accounting  for  Stock-Based  Compensation,  and  applies  APB Opinion No. 25 in
accounting for the 1983 plan and, accordingly,  has not recognized  compensation
cost  for  stock  option  plan in its  financial  statements.  Had  the  Company
determined  compensation  cost  based  on  the  fair  value  at the  grant  date
consistent  with the  provisions  of SFAS 123, the Company's net loss would have
been the pro forma amounts indicated below:

                                                 1998        1997        1996
                                               ---------  ----------  ----------

Net loss -- as reported......................$11,810,587 $13,946,531 $13,299,477
Net loss -- pro forma........................ 11,957,299  14,225,532  13,463,193
Net loss per share -- as reported............        .32         .39         .40
Net loss per share -- pro forma..............        .33         .40         .41

    The fair value of each option  granted  during the three years ended June 30
is estimated on the date of grant using the Black-Scholes  option-pricing  model
with the following assumptions;  (I) dividend yield of 0%, (II) expected term of
8 years, 9.9 years and 9.9 years,  (III) expected  volatility of 42%, and (IV) a
risk-free  interest  rate of 5.57%,  6.5% and 6.5% for the years  ended June 30,
1998, 1997 and 1996,  respectively.  The weighted average fair value at the date
of grant for options granted during the years ended June 30, 1998, 1997 and 1996
was $2.55, $4.91 and $2.34 per share, respectively.

    The pro forma effects on net loss and net loss per share for 1998,  1997 and
1996 may not be  representative  of the pro forma  effects in future years since
(i)  compensation  cost is allocated on a  straight-line  basis over the vesting
periods of the grants,  which extends beyond the reported  years,  and (ii) does
not take into effect the proforma  compensation  expense  related to grants made
prior to the year ended June 30, 1996.

                                      32
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

    Information  concerning  options for the years ended June 30, 1998, 1997 and
1996 is summarized as follows:

                                                             Fiscal 1998
                                                      --------------------------
                                                                  Option Price
                                                       Shares         Range
                                                      ---------  ---------------

Outstanding, July 1, 1997...........................  2,220,250  $2.25 - 12.88
Granted.............................................    138,000   4.38 -  5.31
Exercised...........................................   (169,750)  2.25 -  3.63
Terminated..........................................   (201,000)  3.13 -  7.38
                                                      ---------
Outstanding, June 30, 1998..........................  1,987,500   2.25 - 12.88
                                                      ---------  ---------------
Exercisable, June 30, 1998..........................  1,078,500
                                                      ---------

                                                             Fiscal 1997
                                                      --------------------------
                                                                  Option Price
                                                       Shares         Range
                                                      ---------  ---------------

Outstanding, July 1, 1996...........................  2,280,475  $2.25 - 10.75
Granted.............................................    552,000   4.75 - 12.88
Exercised...........................................    (75,600)  2.25 -  3.63
Terminated..........................................   (536,625)  2.31 - 12.88
                                                      ---------
Outstanding, June 30, 1997..........................  2,220,250   2.25 - 12.88
                                                      ---------  ---------------

                                                             Fiscal 1996
                                                      --------------------------
                                                                  Option Price
                                                       Shares         Range
                                                      ---------  ---------------
Outstanding, July 1, 1995...........................  1,800,000  $2.25 - 10.75
Granted.............................................    890,500   2.31 -  9.50
Exercised...........................................   (324,275)  2.25 -  6.75
Terminated..........................................    (85,750)  2.63 -  6.63
                                                      ---------
Outstanding, June 30, 1996..........................  2,280,475   2.25 - 10.75
                                                      ---------  ---------------

8. Income Taxes

    The Company  utilizes SFAS No. 109 to account for income taxes.  Pursuant to
the accounting standard, the tax effects of temporary differences that give rise
to  significant  portions of the  Company's  deferred  tax assets as of June 30,
1998, 1997 and 1996 are presented below:

                                             1998         1997         1996
                                            ----------  -----------  -----------

Deferred tax assets:
    Net operating loss carry forwards..  $33,040,000  $29,210,000  $24,362,000
    Research and development credits...    4,160,000    3,830,000    3,253,000
    Property and equipment.............      647,000      500,000      293,000
    Other..............................      574,000      565,000      422,000
                                         -----------  -----------  -----------
        Total..........................   38,421,000   34,105,000   28,330,000
Valuation allowance....................  (38,421,000) (34,105,000) (28,330,000)
                                         -----------  -----------  -----------
Net deferred taxes.....................  $   --       $   --       $   --
                                         -----------  -----------  -----------
                                         -----------  -----------  -----------

    The  valuation  allowances  for fiscal  years 1998,  1997 and 1996 have been
applied to offset the deferred tax assets in recognition of the uncertainty that
such tax benefits  will be realized.  The  valuation  allowances  as of June 30,
1998, 1997 and 1996 include  $4,316,000,  $5,775,000 and $6,250,000  relating to
fiscal  years  1998,  1997 and 1996  operations,  respectively.  The tax benefit
assumed  using the  federal  statutory  tax rate of 34% has been  reduced  to an
actual  benefit  of  zero  due  principally  to  the  aforementioned   valuation
allowance.

    At June 30, 1998, the Company has available net operating loss carryforwards
for federal income tax reporting purposes of approximately $83,000,000,  some of
which expire beginning in fiscal 1999. The

                                      33
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

Company made no payments of federal or state income taxes during the years ended
June 30, 1998, 1997 and 1996.

9. Related-Party Transactions

    The Center for Molecular Medicine and Immunology ('CMMI') (also known as the
Garden State Cancer Center) is a not-for-profit corporation, established in 1983
by Dr.  David M.  Goldenberg,  Chairman  of the Board,  former  Chief  Executive
Officer and the major  shareholder of the Company.  CMMI is devoted primarily to
cancer research.

    Dr.  Goldenberg  currently  serves as the  President of CMMI  pursuant to an
employment agreement and devotes  substantially more of his working time to CMMI
than to the Company. Allocations between CMMI and the Company regarding research
projects  are  overseen  by the  Board  of  Trustees  of CMMI  and the  Board of
Directors  of the  Company,  excluding  Dr.  Goldenberg,  to minimize  potential
conflicts of interest.  Certain  employees of CMMI serve as  consultants  to the
Company.

    CMMI is currently  conducting  basic  research and patient  evaluations in a
number of areas of potential  interest to the  Company.  Effective in July 1995,
the Company amended its license  agreement with CMMI to assist CMMI in complying
with  Internal  Revenue  Service  criteria  for  its  then  recently   completed
tax-exempt  financing.  Under the original terms of the license  agreement,  the
Company had the right to an  exclusive,  worldwide  license to  manufacture  and
market  potential  products  developed by CMMI (other than those funded by third
parties) for specified royalty payments and on other specified terms.  Under the
amended license agreement,  the Company maintains the right of first negotiation
to obtain  exclusive,  worldwide  licenses from CMMI to  manufacture  and market
potential  products and technology  covered by the license agreement under terms
representing  fair market  price,  to be  determined  at the time the license is
obtained.

    The amended  license  agreement  terminates  on December 31, 1999,  with the
Company having the right to seek good-faith  negotiation to extend the agreement
for an additional  five-year period.  The Company retains such amended licensing
rights to inventions  made during the term of the agreement for a period of five
years from the time of  disclosure.  Prior to amendment,  the license  agreement
terminated on December 11, 2010, with the Company having the right to extend the
agreement for two additional  five-year  periods with  specified  minimum annual
royalties to be paid during these two periods.

    The  Company  has  reimbursed  CMMI for  expenses  incurred on behalf of the
Company,  including  amounts  incurred  pursuant to research  contracts,  in the
amounts of  approximately  $98,000,  $69,000 and $64,000  during the years ended
June 30, 1998, 1997 and 1996, respectively.  The Company also provides CMMI with
laboratory materials and supplies in connection with research conducted in areas
of potential interest to the Company at no cost to CMMI.

    During each of the years ended June 30,  1998,  1997 and 1996,  the Board of
Directors  of the  Company  authorized  grants to CMMI of  $200,000  to  support
research and clinical work being  performed at CMMI,  such grants to be expended
in a manner deemed  appropriate by the Board of Trustees of CMMI.  Pursuant to a
collaborative  research  and license  agreement,  dated as of January 21,  1997,
between the Company and CMMI, the Company has paid to CMMI an annual license fee
of $200,000 in fiscal years 1998 and 1997.

10. License and Distribution Agreements

    On November 24, 1997, the Company entered into a Distribution Agreement with
Eli Lilly  Deutschland  GmbH ('Lilly')  pursuant to which Lilly will package and
distribute  LeukoScan  within the countries  comprising  the European  Union and
certain  other  countries  subject  to receipt of  regulatory  approvals.  Also,
effective April 6, 1998, Lilly began packaging and distributing  CEA-Scan within
the countries  comprising the European  Union.  The Company pays Lilly a service
fee based primarily on the

                                      34
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

number of units of product  packaged and shipped.  The parties  contemplate that
other Company products may be handled under this arrangement when appropriate.

    Effective as of April 6, 1998, the Company  appointed a subsidiary of Bergen
Brunswig Specialty Corporation as a non-exclusive distributor of CEA-Scan in the
U.S.. Such subsidiary (currently Integrated  Commercialization  Solutions,  Inc.
('ICS'))  serves  as an  agent  of the  Company  in  providing  product  support
services, including customer service, order management,  distribution, invoicing
and collections.

    On November  28,  1997,  the Company was  awarded  $1.8  million,  including
interest,  from its arbitration  claim against  Pharmacia for breach of contract
and fiduciary  duty arising out of the license  agreement  with a predecessor of
Pharmacia  that had been  terminated  in 1995.  This  amount was  recognized  as
revenue  during the quarter ended December 31, 1997.  Additionally,  the Company
recognized  as revenue a portion of funds  previously  received  from  Pharmacia
pertaining  to CEA-Scan  clinical  trials for which the Company no longer has an
obligation. Such amounts had been recorded as deferred revenue.

    In  March  1995,  the  Company   entered  into  a  License   Agreement  with
Mallinckrodt Medical B.V., pursuant to which Mallinckrodt Medical B.V. marketed,
sold and distributed CEA-Scan throughout Western Europe and in specified Eastern
European countries. In April 1996, the Company entered into a U.S. Marketing and
Distribution  Agreement  with  Mallinckrodt  Medical,  Inc.,  pursuant  to which
Mallinckrodt Medical,  Inc., was to market, sell and distribute CEA-Scan for use
in colorectal  cancer  diagnostic  imaging in the U.S. on a  consignment  basis.
Effective  as of April 6, 1998,  the  Company  terminated  the  agreements  with
Mallinckrodt Medical B.V. and Mallinckrodt Medical Inc.. In addition,  effective
as of April 30, 1998,  the Company  terminated  its agreement with MMD Specialty
Services,  Inc.  and  employed  directly  substantially  all of the  people  who
previously comprised the contract sales force.

11. Commitments and Contingencies

    On November 1, 1993, the Company and Dr. Goldenberg entered into a five-year
employment  agreement  (the  'Agreement')  with an additional  one-year  assured
renewal and thereafter  automatically  renewable for additional one-year periods
unless  terminated by either party as provided in the Agreement.  Dr. Goldenberg
will  receive  an  annual  base  salary of not less than  $220,000,  subject  to
increases as determined by the Board of Directors.  Effective  July 1, 1997, the
Board of Directors  increased Dr.  Goldenberg's  annual base salary to $265,000.
The Company has agreed to extend Dr.  Goldenberg's  employment  agreement  for a
five-year period. Pursuant to this extension Dr. Goldenberg's annual base salary
will continue at $265,000.  Further,  the Company  acknowledged and approved Dr.
Goldenberg's  continuing  involvement with CMMI and IBC Pharmaceuticals,  LLC (a
joint venture being formed between the Company and Beckman Coulter, Inc.).

    Pursuant to the  Agreement,  Dr.  Goldenberg  may engage in other  business,
general  investment and scientific  activities,  provided such activities do not
materially  interfere with the performance of any of his  obligations  under the
Agreement,  allowing for those  activities  he presently  performs for CMMI (see
Note 9). The  Agreement  extends the  ownership  rights of the Company,  with an
obligation  to  diligently  pursue  all  ideas,  discoveries,  developments  and
products,  in the entire  medical field,  which,  at any time during his past or
continuing  employment  by the Company  (but not when  performing  services  for
CMMI), Dr. Goldenberg has made or conceived or hereafter makes or conceives,  or
the making or conception of which he has materially  contributed to or hereafter
contributes  to,  all as  defined  in the  Agreement  (collectively  'Goldenberg
Discoveries').

    Further,  pursuant to the Agreement, Dr. Goldenberg will receive, subject to
certain restrictions, incentive compensation of 0.5% on the first $75,000,000 of
all  defined  annual net revenue of the Company and 0.25% on all such annual net
revenue in excess thereof (collectively 'Revenue Incentive Compensation').  With
respect  to the period  that Dr.  Goldenberg  is  entitled  to  receive  Revenue
Incentive  Compensation on any given  products,  it will be in lieu of any other
percentage compensation

                                      35
<PAGE>


                              IMMUNOMEDICS, INC.
          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)

based on sales or  revenue  due him with  respect  to such  products  under this
Agreement  or the  existing  License  Agreement  between  the  Company  and  Dr.
Goldenberg.  With respect to any periods that Dr.  Goldenberg  is not  receiving
such  Revenue  Incentive  Compensation  for any  products  covered  by  patented
Goldenberg Discoveries or by certain defined prior inventions of Dr. Goldenberg,
he will  receive  0.5% on  cumulative  annual net sales of,  royalties,  certain
equivalents   thereof,   and,  to  the  extent  approved  by  the  Board,  other
consideration  received  by the Company for such  products,  up to a  cumulative
annual aggregate of $75,000,000 and 0.25% on any cumulative  annual aggregate in
excess of $75,000,000  (collectively  'Incentive  Payments').  A $100,000 annual
minimum  payment  will be paid in the  aggregate  against all Revenue  Incentive
Compensation and Royalty  Payments.  Dr. Goldenberg will also receive a percent,
not  less  than  20%,  to be  determined  by the  Board,  of  net  consideration
(including  license  fees) which the Company  receives for any  disposition,  by
sale,  license or otherwise  (discussions  directed to which commence during the
term of his employment plus two years) of any defined  Undeveloped Assets of the
Company which are not budgeted as part of the Company's strategic plan.

    On February 1, 1994,  the Company  entered  into a master  lease  agreement,
which  was  subsequently  amended,  pursuant  to which  the  Company  may  lease
equipment  for  research,  development  and  manufacturing  purposes  having  an
aggregate  acquisition cost of up to $2,200,000.  The basic lease payments under
the master  lease  agreement  are  determined  based on current  market rates of
interest at the inception of each equipment schedule  take-down,  and payable in
monthly  installments over a four-year period.  The lease agreement  contains an
early  purchase  option,  at an  amount  which is deemed  to be fair  value.  On
November 1, 1996,  December 9, 1996,  April 1, 1997 and  September 1, 1998,  the
Company  exercised  early purchase  options on equipment  leased on February 14,
1994, April 1, 1994, June 1, 1994 and August 26, 1994,  respectively.  Under the
lease agreement,  continued compliance with certain financial ratios is required
and,  in the event of  default,  the  Company  will be  required  to  provide an
irrevocable letter of credit which is generally equal to the outstanding balance
of lease payments due at the time of default,  which was approximately  $412,000
at June 30, 1998. As of June 30, 1998,  the Company was not in  compliance  with
certain of these ratios, but the lessor has not yet declared an event of default
or  requested  a letter of credit.  The  Company  does not  believe  that such a
request  would have a material  adverse  effect on the  Company.  As of June 30,
1998, the Company has leased equipment with a cost basis aggregating  $1,247,000
under the master lease  agreement  and recorded  lease  expense for fiscal years
1998,  1997 and 1996 of  $348,000,  $497,000  and  $406,000,  respectively.  The
Company has a commitment  to refinance the  outstanding  lease  obligations  and
anticipates closing during the second quarter of fiscal year 1999.

    The Company is obligated  under one operating  lease for facilities used for
research and  development,  manufacturing  and office space. The lease currently
expires in May 1999, with the latter containing  renewal provisions as specified
in the respective  lease.  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.  The lease  provides for a second  renewal  period of 5
years  expiring  May 2007.  The lease  provides  for an option to  purchase  the
facility,  subject to certain  terms and  conditions  as specified in the lease.
Lease expense  related to this lease was  approximately  $425,000,  $428,000 and
$453,000  in fiscal  years  1998,  1997 and 1996,  respectively.  Minimum  lease
commitments for facilities and equipment are as follows:

1999......................................................  $ 683,000
2000......................................................  $ 596,000
2001......................................................  $ 441,000
2002......................................................  $ 441,000
2003......................................................  $ 441,000

    The  Company is  involved in various  claims and  litigation  arising in the
normal course of business.  Management  believes that the outcome of such claims
and  litigation  will  not  have a  material  adverse  effect  on the  Company's
financial position and results of operations.

                                      36
<PAGE>

                         INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Stockholders of IMMUNOMEDICS, INC.:

    We  have   audited  the   accompanying   consolidated   balance   sheets  of
Immunomedics,  Inc. and subsidiary as of June 30, 1998 and 1997, and the related
consolidated statements of operations,  changes in stockholders' equity and cash
flows for each of the years in the three-year  period ended June 30, 1998. These
consolidated  financial  statements  are  the  responsibility  of the  Company's
management.  Our  responsibility is to express an opinion on these  consolidated
financial statements based on our audits.

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

    In our opinion,  the  consolidated  financial  statements  referred to above
present  fairly,   in  all  material   respects,   the  financial   position  of
Immunomedics,  Inc. and subsidiary as of June 30, 1998 and 1997, and the results
of their operations and their cash flows for each of the years in the three-year
period ended June 30, 1998, in conformity  with  generally  accepted  accounting
principles.

                                          KPMG PEAT MARWICK LLP

Short Hills, New Jersey
August 3, 1998

                                      37
<PAGE>

Item 9 -- Changes in and Disagreements with Accountants on Accounting and
Financial Disclosure

    None

                                   PART III

Item 10 -- Directors and Executive Officers of the Registrant

    The information  required for this item is incorporated  herein by reference
to the 1998 Definitive  Proxy  Statement.  See also  'Executive  Officers of the
Registrant' in Part I, following Item 4.

Item 11 -- Executive Compensation

    The information  required for this item is incorporated  herein by reference
to the 1998 Definitive Proxy Statement.

Item 12 -- Security Ownership of Certain Beneficial Owners and Management

    The information  required for this item is incorporated  herein by reference
to the 1998 Definitive Proxy Statement.

Item 13 -- Certain Relationships and Related Transactions

    The information  required for this item is incorporated  herein by reference
to the 1998 Definitive Proxy Statement.

                                   PART IV

Item 14 -- Exhibits, Financial Statement Schedules, and Reports on Form 8-K

    (a) Documents filed as part of this Report:

   1.      -- Consolidated Financial Statements:
             Consolidated Balance Sheets -- June 30, 1998 and 1997
             Consolidated  Statements of Operations for the years ended June 30,
             1998, 1997 and 1996 Consolidated Statements of Stockholders' Equity
             for the  years  ended  June 30,  1998,  1997 and 1996  Consolidated
             Statements  of Cash Flows for the years ended June 30,  1998,  1997
             and 1996 Notes to  Consolidated  Financial  Statements  Independent
             Auditors' Report -- KPMG Peat Marwick, LLP
   2.      -- Financial Statement Schedules:
             All  schedules  have  been  omitted   because  of  the  absence  of
             conditions  under  which they  would be  required  or  because  the
             required information is included in the financial statements or the
             notes thereto.
   3.      -- Articles of incorporation and by-laws
   3.1(a)    -- Certificate of Incorporation  of the Company,  as filed with the
             Secretary of State of the State of Delaware on July 6, 1982(e)
   3.1(b)    -- Certificate of Amendment of the Certificate of  Incorporation of
             the  Company as filed with the  Secretary  of State of the State of
             Delaware on April 4, 1983(e)
   3.1(c)    -- Certificate of Amendment of the Certificate of  Incorporation of
             the  Company as filed with the  Secretary  of State of the State of
             Delaware on December 14, 1984(e)
   3.1(d)    -- Certificate of Amendment of the Certificate of  Incorporation of
             the  Company as filed with the  Secretary  of State of the State of
             Delaware on March 19, 1986(e)
   3.1(e)    -- Certificate of Amendment of the Certificate of  Incorporation of
             the  Company as filed with the  Secretary  of State of the State of
             Delaware on November 17, 1986(e)
   3.1(f)    -- Certificate of Amendment of the Certificate of  Incorporation of
             the  Company as filed with the  Secretary  of State of the State of
             Delaware on November 21, 1990(f)
   3.1(g)    -- Certificate of Designation of Rights and  Preferences,  as filed
             with the  Secretary  of State of the State of  Delaware on March 1,
             1991(g)
   3.1(h)    -- Certificate of Amendment of the Certificate of  Incorporation of
             the Company,  as filed with the  Secretary of State of the State of
             Delaware on December 7, 1992(j)
   3.1(i)    --  Certificate  of  Designation  of Rights and  Preferences of the
             Company's  Series B  Convertible  Preferred  Stock  filed  with the
             Secretary of State of the State of Delaware on December 21, 1994(l)

                                      38
<PAGE>


   3.1(j)    -- Certificate  of   Designation  of Rights and  Preferences of the
             Company's  Series C Convertible  Preferred Stock, as filed with the
             Secretary  of  State of the  State of  Delaware  on  September  25,
             1995(n)
   3.1(k)    -- Certificate  of   Designation  of Rights and  Preferences of the
             Company's  Series D Convertible  Preferred Stock, as filed with the
             Secretary of State of the State of Delaware on June 26, 1996(o)
   3.1(l)    -- Certification  of  Amendment of the Certificate of Incorporation
             of the Company as filed with the Secretary of State of the State of
             Delaware on November 7, 1996(u).
   3.1(m)    -- Certificate  of   Designation  of Rights and  Preferences of the
             Company's Series E Junior  Participating  Preferred Stock, as filed
             with the Secretary of State of the State of Delaware on January 23,
             1998(r)
   3.2       -- Amended and Restated By-Laws of the Company(j)
   4.        -- Instruments defining the rights of security holders,   including
             indentures.
   4.1       -- Specimen Certificate for Common Stock(e)
   4.2       -- Structured Equity Line Flexible Financing Agreement,   dated  as
             of December 23,  1997, between Immunomedics, Inc. and Cripple Creek
             Securities, LLC(s)
   4.3       -- Registration Rights Agreement,  dated as of December  23,  1997,
             between Immunomedics, Inc. and Cripple Creek Securities, LLC(s)
   4.4       -- Common  Stock   Purchase   Warrant  issued   to   Cripple  Creek
             Securities, LLC(s)
   4.5       -- Form  of  additional  Common  Stock Purchase Warrant issuable to
             Cripple Creek Securities, LLC(s)
   4.6       -- Rights  Agreement,  dated   as  of  January  23,  1998,  between
             Immunomedics,  Inc. and American  Stock Transfer and Trust Company,
             as rights agent, and form of Rights Certificate(r)
  10.        -- Material contracts
  10.1(a)    -- 1983 Stock Option Plan, as amended(h)
  10.1(b)    -- Form of Stock Option Agreement(e)
  10.2       -- Exclusive License Agreement with David  M. Goldenberg,  dated as
             of July 14, 1982(a)
  10.3       -- Agreement among the Company,  David M. Goldenberg and the Center
             for Molecular Medicine and Immunology, Inc. dated, May, 1983(a)
  10.4       -- Memorandum  of  Understanding  with  David  M. Goldenberg, dated
             September 10, 1984(b)
  10.5       -- Immunomedics, Inc. 401(k) Retirement Plan(c)
  10.6       -- Executive   Supplemental   Benefits   Agreement  with  David  M.
             Goldenberg, dated as of July 18, 1986(c)
  10.7       -- License  Agreement  between Hoffmann-La Roche, Inc. and David M.
             Goldenberg, dated as of April 29, 1986(c)
  10.8       -- License Agreement with F. James Primus dated July 7, 1983(d)
  10.9       -- Amended and Restated License Agreement among the Company,   CMMI
             and David M. Goldenberg, dated December 11, 1990(h)
  10.10      -- Lease Agreement with Baker Properties Limited partnership, dated
             January 16, 1992(i)
  10.11      -- Imunomedics, Inc. 1992 Stock Option Plan(p)
  10.12      -- Amended and Restated  Employment  Agreement,  dated November  1,
             1993, between the Company and Dr. David M. Goldenberg(k)
  10.13      -- Amendment,  dated  March 11,  1995,  to the Amended and Restated
             License Agreement among the Company, CMMI, and David M. Goldenberg,
             dated December 11, 1990(m)
  10.14      -- Manufacturing Agreement,  dated as of April 4, 1996, between the
             Company and SP  Pharmaceuticals,  formerly the Oncology Division of
             Pharmacia & Upjohn  (Confidential  treatment has been requested for
             certain portions of the Agreement)(o)
  10.15      -- License  Agreement,  dated as of January 21,  1997,  between the
             Company and Center for Molecular Medicine and Immunology, Inc.(q)
  10.16      -- Distribution  Agreement,  dated as of November 24, 1997, between
             Immunomedics,  Inc. and Eli Lilly  Deutschland GmbH  (*Confidential
             treatment  has  been   requested   for  certain   portions  of  the
             Agreement)(t)
  10.17      -- Employment  Agreement,   dated  as  of  May  15,  1998,  between
             Immunomedics, Inc. and Robert DeLuccia.
  10.18      -- Distribution and Product Services Agreement, dated as of May 15,
             1998, between Immunomedics,  Inc. and Integrated  Commercialization
             Solutions, Inc.  (Confidentiality  treatment has been requested for
             certain portions of the Agreement).

                                      39
<PAGE>


  11.      -- Statement  recomputation  of  per  share  earnings -- Not required
             since such computation can be clearly  determined from the material
             contained in this Annual Report on Form 10-K.
  12.      -- Statements re computation of ratios -- Not applicable.
  21.      -- Subsidiaries of the Company -- Immunomedics Europe
  23.      -- Consent of Experts and Counsel
  23.1     -- Consent of Independent Accountants -- KPMG Peat Marwick LLP
  27.      -- Financial Data Schedule
    (a)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Registration  Statement  on Form  S-1  effective  October  6,  1983
             (Commission File No. 2-84940).
    (b)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Annual Report on Form 10-K for the year ended June 30, 1985.
    (c)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Annual Report on Form 10-K for the fiscal year ended June 30, 1986.
    (d)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Annual Report on Form 10-K for the fiscal year ended June 30, 1988.
    (e)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Annual Report on Form 10-K for the fiscal year ended June 30, 1990.
    (f)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Quarterly Report on Form 10-Q for the fiscal quarter ended December
             31, 1990.
    (g)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Quarterly  Report on Form 10-Q for the fiscal  quarter  ended March
             31, 1991.
    (h)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Registration   Statement  on  Form  S-2  effective  July  24,  1991
             (Commission File No. 33-41053).
    (i)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Registration  Statement  on Form S-2  effective  January  30,  1992
             (Commission File No. 33-44750).
    (j)      -- Incorporated by reference from the Exhibits to the The Company's
             Annual Report on Form 10-K for the fiscal year ended June 30, 1993.
    (k)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Quarterly  Report  on  Form  10-Q  for  the  fiscal  quarter  ended
             September 30, 1993.
    (l)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Quarterly Report on Form 10-Q for the fiscal quarter ended December
             31, 1994.
    (m)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Annual Report on Form 10-K for the fiscal year ended June 30, 1995.
    (n)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Quarterly  Report  on  Form  10-Q  for  the  fiscal  quarter  ended
             September 30, 1995.
    (o)      -- Incorporated by reference from the Exhibits to the  Registrant's
             Annual Report on Form 10-K for the fiscal year ended June 30, 1996.
    (p)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Quarterly  Report  on  Form  10-Q  for  the  fiscal  quarter  ended
             September 30, 1996.
    (q)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Quarterly Report on Form 10-Q for the fiscal quarter ended December
             31, 1996.
    (r)      --  Incorporated  by reference  from the Exhibits to the  Company's
             Registration Statement on Form 8-A, as filed with the Commission on
             January 29, 1998.
    (s)      --  Incorporated  by reference  from the exhibits to the  Company's
             Registration Statement on Form S-3, as filed with the Commission on
             January 29, 1998.
    (t)      --  Incorporated  by reference  from the exhibits to the  Company's
             Quarterly Report on Form 10-Q for the fiscal quarter ended December
             31, 1997.

       (b) Reports on Form 8-K:

    None

                                      40
<PAGE>

                                  SIGNATURES

    Pursuant  to the  requirements  of  Section  13 or 15(d)  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.

Date: September 28, 1998
                                          By       /s/ ROBERT J. DELUCCIA
                                              ................................
                               Robert J. DeLuccia
                          President and Chief Executive
                                     Officer
                          (Principal Executive Officer)
<TABLE>
    Pursuant to the  requirements  of the Securities  Exchange Act of 1934, this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
Registrant and in the capacities and on the dates indicated.
<CAPTION>

            Signature                              Title                         Date
- ----------------------------------  ------------------------------------  ------------------
<S>                                 <C>                                   <C>
     /s/ DAVID M. GOLDENBERG        Chairman                              September 28, 1998
 .................................
       David M. Goldenberg

      /s/ ROBERT J. DELUCCIA        President, Chief Executive Officer    September 28, 1998
 .................................    and Director (Principal Executive
        Robert J. DeLuccia            Officer)

      /s/ KEVIN F.X. BROPHY         Vice President, Finance &             September 28, 1998
 .................................    Administration (Principal
        Kevin F.X. Brophy             Financial and Accounting Officer)

   /s/ W. ROBERT FRIEDMAN, JR.      Director                              September 28, 1998
 .................................
     W. Robert Friedman, Jr.

       /s/ MARVIN E. JAFFE          Director                              September 28, 1998
 .................................
         Marvin E. Jaffe

     /s/ RICHARD R. PIVIROTTO       Director                              September 28, 1998
 .................................
       Richard R. Pivirotto

     /s/ WARREN W. ROSENTHAL        Director                              September 28, 1998
 .................................
       Warren W. Rosenthal

     /s/ RICHARD C. WILLIAMS        Director                              September 28, 1998
 .................................
       Richard C. Williams
</TABLE>

                                      41
<PAGE>

                                                                   Exhibit 10.17

Immunomedics, Inc.
300 American Road, Morris Plains, New Jersey 07950
May 15, 1998


Mr. Robert J. DeLuccia

Dear Mr. DeLuccia:

On behalf of Immunomedics, Inc., I am pleased to offer the position of President
and Chief Executive  Officer and member of the Board of Directors,  reporting to
the Chairman of the Board of Directors.

This position is a salary grade 21 and your base salary will be  $10,000.00  per
semi-monthly pay period equivalent to $240,000.00 on an annualized basis. Annual
performance  reviews will be conducted by the Board of Directors on July 1st and
adjustments will reflect your performance and responsibilities.

Additionally,  you will be entitled to four weeks of paid vacation  annually and
Immunomedics, Inc. will provide you with a car allowance of $750.00 per month.

The Company offers a Comprehensive Health Care Plan and a 401(K) Savings Plan to
its employees.  The 401(K) open enrollment dates are January 1st and July 1st of
each year. The Company matches a portion of the employee's  annual  contribution
and in past years it has been 25% of 5% of the employee's  annual salary.  There
is a 30-day  waiting  period  before an eligible  employee can be covered by our
health  care plan,  so please  arrange to keep your  current  coverage  in force
through this period.  Information  regarding  these  programs and other  Company
benefits  along  with   guidelines   commencing   employment  are  contained  in
Immunomedics'  orientation  package  which  is  issued  at the  time  employment
commences.

A stock option package of 200,000 shares of Immunomedics' common stock under the
Company's 1992 Stock Option Plan will be presented to the Compensation Committee
of the Board of  Directors  for  approval  and,  subject to this  approval,  the
exercise  price  will be based on the last sale  price of the  Company's  common
stock, as per the NASDAQ system,  on your date of hire. At the end of your first
year of employment you will be eligible to receive an additional 150,000 options
(as  determined by the Board),  based upon your  contribution  to the company in
meeting certain milestones.


<PAGE>


Thereafter,  you will be  eligible  to receive  additional  option  grants on an
annual basis, based upon your performance and the performance of the company, as
determined by the Board of Directors.

The  President  and Chief  Executive  Officer is  responsible  for the Company's
operations and financial activities, including the following functions:

*      Marketing and sales
*      Business development
*      Regulatory Affairs
*      Finance
*      Information systems and technology
*      Legal
*      Manufacturing and facilities
*      Human Resources
*      Investor and public relations, and
*      Oversight of foreign affiliates and operations.

In the area of basic research and related patent  activities,  the President and
Chief Executive Officer shall be indirectly  involved through the Chairman,  who
has responsibility for these functions.  The President and CEO shall consult and
advise the  Chairman  prior to any  strategic  policy  changes  that  affect the
Chairman's area of  responsibility.  However,  it is the Chairman's desire that,
when  appropriate,  research and  patent-related  functions  also come under the
direct authority of the President.

The  President  and Chief  Executive  Officer will fulfill the  functions in the
designated  areas in accordance  with  Board-approved  budgets and shall have an
expenditure  authorization for items of up to $50,000,  provided the expenditure
will not cause budgeted amounts for the  corresponding  category to be exceeded.
Expenditures, contracts or commitments on behalf of the company above this level
or that are in an unbudgeted  category require final approval by the Chairman or
the Board of Directors if the expenditure exceeds the Chairman's  authorization.
This also applies to corporate  partnerships,  alliances  and deals,  as well as
financing arrangements, which require Board approval.


<PAGE>


In all areas of the company, the President and Chief Executive Officer will have
hiring, firing and related personnel responsibilities, but should confer in this
regard with the Chairman on matters involving Executive Directors, and Corporate
Vice Presidents and Officers.

Except as indicated  above,  the  Chairman  shall not deal  directly  with these
functions  or staff  without  the prior  agreement  of the  President  and Chief
Executive Officer.

If you are voluntarily terminated by the company,  except for cause, the company
will provide you with  severance  compensation  amounting to two weeks for every
one  month's  employment  to a maximum  of nine (9)  months,  payable in monthly
installments  from the date of your  termination  or until  you  commence  other
employment, whichever comes first.

In the  event of a change  of  control,  all of your  stock  options  will  vest
immediately  and if you are not retained by the new  employer,  the company will
provide  you  severance   compensation  amounting  to  no  less  than  9  months
continuation of your prevailing base salary.

It is Company policy to have each new employee acknowledge the following:

*    Employment  eligibility   verification  and  proper I-9  documentation.  In
     compliance with federal law,  Immunomedics,  Inc. must verify the status of
     every  individual  offered  employment with the Company to ensure that they
     are  authorized  to be  lawfully  employed  in the United  States.  In this
     connection, it will be necessary for you to submit verification as required
     by law of your  identity  and  employment  authorization  as a condition to
     employment with Immunomedics, Inc.

*    Your  acknowledgment  and  execution  of your  agreement  not  to  disclose
     proprietary information, agreement to assign all discoveries and inventions
     to Immunomedics and a covenant not to compete or to solicit  employees away
     from the Company.

Your  employment  is scheduled to commence on June 1, 1998.  On that day you are
scheduled  to attend a new  employee  orientation  at 8:30  a.m.  with the Human
Resources department.

By accepting this employment offer, you hereby represent that your employment by
Immunomedics,  Inc.  does  not  violate  the  terms of any  employment  or other
agreement  to which you are or have  previously  been a party.  Further,  as set
forth in Immunomedics'  employment application and its handbook, your employment
relations with Immunomedics is on an "at-will" basis.  Additionally,  this offer
is contingent  on the  completion of  satisfactory  reference  checks which Korn
Ferry is currently conducting.


<PAGE>


Bob, everyone associated with Immunomedics,  Inc. is excited about the Company's
prospects - especially with you as President and Chief Executive Officer. Kindly
indicate  your  acceptance  of our  offer of  employment  under  the  terms  and
conditions  outlined  in this  letter by  signing  and dating the bottom of this
letter.  Please  forward  the  executed  copy  to  my personal fax this weekend.
Original  copies will then be available  for you to sign,  with  other personnel
forms, in our Human Resources department, next week.

If you have any questions or need  additional  information,  please feel free to
call me.  We look forward with pleasure to welcoming you to Immunomedics.


Sincerely,


/s/ David M. Godenberg

David M. Goldenberg, Sc.D., M.D.
Chairman

DMG/dsb
Enclosures


UNDERSTOOD AND ACCEPTED:



/s/ Robert J. DeLuccia                                            May 15th, 1998
- ------------------------------                        --------------------------
Robert J. DeLuccia                                                         Date

<PAGE>


                                                                   Exhibit 10.18












                  DISTRIBUTION AND PRODUCT SERVICES AGREEMENT*

                            Dated as of May 15, 1998

                                     Between

                  INTEGRATED COMMERCIALIZATION SOLUTIONS, INC.

                                       and

                               IMMUNOMEDICS, INC.
- --------
*     Confidential portions omitted and filed separately with the Securities and
      Exchange Commission.





<PAGE>



                            DISTRIBUTION AND PRODUCT
                               SERVICES AGREEMENT

         This Distribution and Product Services Agreement ("Agreement")  made as
of  this  15th  day  of  May,  1998 by and between  INTEGRATED COMMERCIALIZATION
SOLUTIONS, INC. ("ICS") and IMMUNOMEDICS, INC. ("IMMU").

                                    RECITALS

         A. IMMU, a Delaware  corporation,  is a biopharmaceutical  Company that
manufactures  and  sells  pharmaceutical  products  including  CEA-Scan(r)  (the
"Product") which has U.S.F.D.A. approval for human use.

         B. ICS, a  California  corporation  and a  wholly-owned  subsidiary  of
Bergen Brunswig Specialty Company,  a California  corporation,  which is a major
operating  division  of  Bergen  Brunswig  Corporation,  is in the  business  of
providing  distribution and product support services to drug  manufacturers  and
other sectors of the healthcare industry.

         C. IMMU  desires  to engage  ICS to provide  product  support  services
including   Customer   Account  Set-up,   Customer   Service/Order   Management,
Warehousing/Distribution,    Invoicing/Accounts    Receivable   Management   and
Credit/Collection  Services for the Product and such other IMMU  products as the
parties may agree from time to time to add by addendum hereto.

         NOW  THEREFORE,  for good and valuable  consideration,  the receipt and
sufficiency  of  which is  hereby  acknowledged,  the  parties  hereto  agree as
follows:

         1.       Appointment

                  1.1. IMMU hereby  appoints ICS as its  non-exclusive  agent to
provide  product  support  services  for the Product in the U.S.A.  and the U.S.
territories.  ICS  represents  and  warrants  that  it has  the  facilities  and
personnel  necessary  to  satisfactorily  and timely  perform the services to be
provided by it under this Agreement.

                  1.2. IMMU hereby engages ICS to provide the services described
in this  Agreement  for the fees listed in Schedule "A"  attached  hereto and by
this reference made a part hereof.

         2.       Services

                  For the fees  listed in  Schedule  "A",  ICS will  provide the
following services:




                                       -2-

<PAGE>



                  2.1.     Customer Account Set-up

                           ICS  will establish,  maintain and update a  customer
data base to support IMMU and perform the following activities.

                           2.1.1.   Obtain   all   necessary  documentation   to
establish  new  customer  accounts,  including,  without  limitation,  a  credit
application and the appropriate current  radioactive materials handling  license
as  issued  by  the  Nuclear Regulatory  Commission or other governmental agency
having jurisdiction; and

                           2.1.2.   Perform  the  necessary procedures to verify
extension of credit to customers.   The  cost  of third party verification (TRW,
D&B, etc.) shall be borne by IMMU.

                  2.2.     Customer Service/Order Management.

                           ICS will  provide customer service representatives to
perform the following order process management activities.

                           2.2.1.  Staffing during normal customer service hours
(8:00 a.m. CT to 6:00 p.m. CT) including a live operator greeting;

                           2.2.2.   Management of inbound telephone calls, faxes
and EDI transmissions relating to ordering, marketing and distribution;

                           2.2.3.   New  account  processing,  including  credit
verification; and

                           2.2.4.   Coordinating  inquiries regarding technical,
clinical  and  medical  issues  and  referring  directly  to  IMMU  to assure an
appropriate response by IMMU.

                  2.3.     Warehousing/Distribution.

                           ICS  will  provide  the  following   warehousing  and
distribution services:

                           2.3.1.   Warehouse  and  inventory the Product at the
ICS distribution facility at [*]. Product that  has met all  regulatory  product
release  requirements will be received and placed in inventory for distribution.
ICS and IMMU will comply with all FDA regulations  including  product lot record
retention.

                           2.3.2.   Maintain    inventory    under   appropriate
conditions as specified by IMMU.





                                       -3-

<PAGE>



                           2.3.3.   Provide  continuous  inventory  maintenance,
security and control.

                           2.3.4.   Package  (including  packaging  and shipping
materials) and ship designated q uantities pursuant to customer requirements and
IMMU guidelines.

                           2.3.5.   Shipment/handling    of     outdated/damaged
products in accordance with FDA regulations and IMMU direction.

                           2.3.6.   Maintain a database required to facilitate a
recall in accordance with  FDA guidelines  and  requirements  should  that  ever
become necessary.

         2.4.     Invoicing/Accounts Receivable Management

                  2.4.1. ICS will invoice customers in the name of IMMU, on IMMU
invoices.

                  2.4.2.   Product  pricing  will  be  determined  by  IMMU  and
communicated to ICS. Price changes will be communicated in writing to ICS.

                  2.4.3.  Special  handling  charges  (including drop shipments)
will be invoiced to the customers  for  non-standard  shipments,  as agreed with
IMMU.

                  2.4.4. ICS will maintain  appropriate accounts receivable data
(including   detailed  aged  trial  balances)  to  facilitate  customer  account
management and collections.

                  2.4.5.  Payments will be directed to be made to a lockbox at a
bank selected by IMMU.  IMMU shall cause  remittance  advices to be forwarded to
ICS on a timely basis for cash application.

                  2.4.6.  ICS  will  be  responsible  for  dispute   resolution,
deduction management, etc.

         2.5.     Credit/Collection

                  2.5.1.  ICS will verify and establish  credit within the broad
guidelines established by IMMU.

                  2.5.2.  Credit  holds will be placed on any  account  which is
sixty (60) days past due. Release of credit hold must be authorized by IMMU.





                                       -4-

<PAGE>



                  2.5.3.  ICS will establish the capability of accepting  credit
card payments and IMMU will accept orders for payment via credit card.

                  2.5.4.  All  credits  to be issued to  customers,  other  than
clerical, recording or invoicing errors, require pre-approval of IMMU.

                  2.5.5.  IMMU shall bear the ultimate  credit risk for the IMMU
accounts.

         2.6.     Other

                  2.6.1.  IMMU  will pay all  costs,  expenses,  insurance,  and
import duties, if any, for delivery of all Product to the ICS facility. ICS will
visually  inspect  each  shipment of Product for  external  container or package
damage or loss in  transit  (based  upon  records  provided  to ICS from  IMMU).
Contingent  upon  ICS  receiving  the   appropriate   records  to  enable  batch
verification,  ICS shall  notify  IMMU when damage or loss has  occurred  within
three  business  days of receipt of Product by ICS.  ICS will store and ship all
Product in compliance with good manufacturing  practice guidelines and other FDA
requirements.  ICS will store Product at 2 (degree) to 8 (degree)  centigrade at
all times.

                  2.6.2.  Upon receipt of the order  transmission  from customer
service Product will be shipped in regulatory  compliant  refrigerated  shippers
(which will be directed to maintain the required  temperature).  Orders received
by [*] will be shipped  [*].  ICS will make every  reasonable  effort to process
orders  received  after  [*].  in the event of an  emergency.  Products  will be
distributed on an FEFO (first expired, first out) basis.

                  2.6.3.   Emergency Deliveries.  In emergencies Product will be
shipped same day if necessary and costs will be passed through to the customer.

         3.       Data  Management  and  Reporting  (Key  Program  Activity  and
Management Reports)

                  The  following  types of reports will be available to IMMU for
the fees listed in Schedule "A" attached hereto:

                  3.1.     transmission of daily sales by unit and dollars

                  3.2.     sales reports by territory/region

                  3.3.     inventory reports

                  3.4.     credits





                                       -5-

<PAGE>



                  3.5.     new accounts

                  3.6.     chargeback, rebate data

                           IMMU  and  ICS  will  jointly  determine the types of
reports, data elements and formats,  and the  frequency  of reports that will be
required to provide key management and program oversight information. IMMU shall
receive up to [*] of the above standard reports without additional charge. There
will  be  additional  charges  for  any  further reports  requested,  based upon
programming charges.

                           It  is  intended  that IMMU will have the ability and
the right to access via electronic  media the data  maintained  by ICS on behalf
of IMMU for reporting purposes.

         4.       Recalls

                  4.1.  In the event  that it  becomes  necessary  to  conduct a
recall,  market withdrawal or field correction (a "Recall") of any Product, IMMU
shall conduct the Recall and shall have primary responsibility therefor, and ICS
shall cooperate with IMMU in recalling any affected  Product.  If the Recall was
due to the acts or omissions of IMMU,  then IMMU shall pay or reimburse,  as the
case may be,  all of ICS's  direct  out-of-pocket  expenses,  including  but not
limited to any  reasonable  attorney's  fees and  expenses,  incurred  by ICS in
connection with performing any such Recall. If the Recall was due to the acts or
omissions of ICS,  then ICS shall pay or  reimburse,  as the case may be, all of
IMMU's  direct  out-of-pocket  expenses,   including  but  not  limited  to  any
reasonable  attorneys  fees or  expenses,  incurred by IMMU in  connection  with
performing any such Recall.  Each of the parties shall use its  reasonable  best
efforts to minimize the expenses of Recall when it occurs. IMMU shall inform ICS
of the proposed  Recall within  forty-eight  (48) hours of the initiation of the
Recall. IMMU and ICS will jointly develop Recall standard operating procedures.

                  4.2.     FDA Correspondence and Inspections

                           Each  of  the  parties shall provide the other with a
copy  of  any  correspondence  or  notices  received  by  such  party  from  FDA
specifically relating to distribution  of the Product  within  three (3) days of
receipt.  Each party shall also provide the other copies of any responses to any
such correspondence or notices within three (3)days of making the response.  ICS
shall  notify  IMMU  of  any  FDA  inspections  of ICS's facilities specifically
relating to any of the Product  and,  if reasonably possible,  shall afford IMMU
the opportunity  to be present at such inspection.





                                       -6-

<PAGE>



         5.       Delivery of Product/Risk

                  5.1. IMMU shall deliver, and ICS shall accept, such quantities
of the Product as shall be necessary for ICS to fill orders for the Product. All
Product  delivered  to ICS will be held by ICS as agent for IMMU and will remain
at all times under and subject to the  ownership,  direction and control of IMMU
until sold through ICS to IMMU's  customers.  Pricing  shall be  established  by
IMMU.  Title to the Product held by ICS will pass directly from IMMU to the IMMU
customers who purchase the Product through ICS. IMMU shall bear the risk of loss
of the Product not yet delivered by ICS to a customer, whether by fire, theft or
other  casualty;  provided,  however,  that ICS shall indemnify IMMU for Product
which is lost or  damaged  as a result of ICS's  negligence.  During the term of
this Agreement, ICS will store Product at its facility in [*].

                  5.2. ICS shall accept  returns from  customers only with prior
written  approval of IMMU. ICS shall forward  unusable Product to IMMU for final
disposition in accordance with applicable regulations.

         6.       Certain Obligations of the Parties

                  6.1.  IMMU and ICS will  jointly  develop  standard  operating
procedures  ("SOP's") as may be required  from time to time in  accordance  with
IMMU directives and consistent with FDA regulations.

                  6.2.     IMMU will deliver Product in boxes containing one (1)
vial per box.
                  6.3. IMMU will provide package inserts for all single vial and
other quantities.

                  6.4.  IMMU  warrants and  represents to ICS that the execution
and  performance  of this  Agreement  will not breach any existing  contracts or
arrangements that IMMU has entered into with any third parties.

                  6.5.  IMMU will assist ICS in training  ICS  customer  support
personnel concerning CEA-Scan.

         7.       Term And Termination

                  7.1.     Initial Term

                           This Agreement shall be effective as of May 15, 1998,
and shall continue  in full  force  and  effect  thereafter  for a period of [*]
from  such  effective  date  unless  sooner  terminated as provided herein. This
Agreement shall automatically renew for successive [*] periods unless terminated
as provided herein.




                                       -7-

<PAGE>




                  7.2.     Termination Without Cause

                           This  Agreement  may  be  terminated  by either party
without cause on one hundred eighty (180) days written notice to the other.

                  7.3. A party may terminate  this  Agreement  immediately  upon
written notice for the following causes:

                           7.3.1.  the commencement of a voluntary case or other
proceeding seeking  liquidation,  reorganization or other relief with respect to
the other party of its debts under any  bankruptcy,  insolvency,  corporation or
other similar law now or hereafter in effect; or (ii) the other party's making a
general  assignment for the benefit of creditors,  or the other party's becoming
insolvent,  or the other party taking any  corporate  action to authorize any of
the foregoing;

                           7.3.2.   the  other party's failure to pay any amount
that is due to the  non-breaching  party under this  Agreement  and such failure
continues for seven (7)days after the other party receives notice of such breach
from the non-breaching party;

                           7.3.3.   the other party's  failure to perform any of
its material obligations under this  Agreement,  and such failure  continues for
thirty (30) days  after the other party receives notice  of such breach from the
non-breaching party; provided, however, if the other party has commenced to cure
such breach within such thirty (30) days, but such cure is not completed  within
said thirty (30)days, the other party shall be afforded the amount of additional
time reasonably necessary to complete said cure, provided  that the other  party
diligently pursues curing the breach until completion; and

                           7.3.4.   the  other  party's  failure  to perform the
services as described in Section 2 for a period of more than thirty (30) days as
a result of a force majeure event specified in Section 22.

                  7.4. All accrued payment obligations of the parties under this
Agreement,  and  Sections  11 through 15,  inclusive,  of this  Agreement  shall
survive the termination of this Agreement and,  except as provided  elsewhere in
this Agreement, no termination of this Agreement shall affect any obligations or
liabilities  arising,  or based upon acts or omissions  occurring,  prior to the
date of such termination.  All fees shall be non-refundable.  Within thirty (30)
days of  termination,  ICS shall return to IMMU or destroy,  in accordance  with
IMMU's  instructions  and at IMMU's cost,  all  inventory of Product  previously
delivered to ICS and not sold to customers.  If ICS shall have  terminated  this
Agreement  without cause, or if IMMU shall have terminated for cause,  ICS shall
pay the freight costs to deliver such inventory to IMMU. If this




                                       -8-

<PAGE>



Agreement  shall  have  terminated  for any  other  reason,  IMMU  shall pay the
reasonable freight costs to deliver such inventory to IMMU.

         8.       Disaster Recovery

                  ICS and IMMU shall  cooperate  to develop a disaster  recovery
service specific to IMMU's needs during the implementation  process.  This shall
be drafted as a standard operating procedure ("SOP").

         9.       Compensation - Fees for Services

                  9.1.     Consignment Distribution Fee

                           IMMU  shall  pay  fees to ICS as detailed in Schedule
"A".  ICS shall invoice IMMU within [*] of the previous calendar month end. IMMU
shall pay all invoices within [*] of the invoice date.

                  9.2.     Hourly Fees

                           In  addition  to  the fees  for  services detailed in
Sections 1,  2 and 3,  the  following services will  be provided by ICS on an as
required  basis  and  shall  be  billed at the rate of [*] per hour as listed in
Schedule "A":

                           The  provision  of  custom sales reports requested by
IMMU  for  specific  territories and/or time periods.   The creation of software
designed to produce such custom sales  reports and all other  services  required
by  IMMU  for  the  provision  of  custom management report set-up. A reasonable
estimate of such charge shall be provided in advance.

                  9.3.     Travel Costs

                           IMMU  will  pay  to ICS all reasonable costs incurred
while  traveling  for  and  on  behalf  of IMMU at IMMU's request.  A reasonable
estimate of such charge shall be provided in advance.

                  9.4.     Auditing Rights

                           ICS  shall  keep records relating to the transactions
covered  by  this Agreement, which records  shall be available for inspection by
IMMU  to  confirm  that the correct amounts have been paid under this Agreement.
Such  inspections shall take place not more than once per year at ICS's  offices
and on no less than thirty (30) days notice and during normal business hours.

         10.      Compliance with Laws




                                       -9-

<PAGE>




                  10.1.  During the term of this  Agreement,  each  party  shall
conduct its activities in connection  with this Agreement in compliance with all
applicable laws. Specifically, ICS shall comply with all applicable Requirements
of Law related to the storage,  handling and  distribution of Product,  and IMMU
shall comply with all applicable Requirements of Law related to the importation,
manufacture, distribution, labeling, storage, sale and handling of Product. IMMU
shall  have the  right,  not more than once per year and on no less than  thirty
(30) days notice and during normal business  hours, to inspect ICS's  facilities
to confirm  compliance  with all applicable  Requirements  of Law related to the
storage,  handling and distribution of Product,  provided that IMMU acknowledges
that such  inspection  shall be limited to such  extent  required to comply with
laws and to maintain the confidentiality of ICS's other customers and clients.

                  10.2. IMMU agrees and does hereby represent and warrant to ICS
during the term of this  Agreement  that (1) all Product,  and each  shipment of
each,  or other  delivery now and  hereafter  made by IMMU to or on the order of
ICS, will not be, at the time of shipment or delivery,  adulterated,  misbranded
or otherwise  prohibited  within the meaning of the Act or within the meaning of
any applicable state or municipal law and (2) the Product is not, at the time of
shipment  or  delivery  to  ICS,  merchandise  which  may not be  introduced  or
delivered for  introduction  into  interstate  commerce  under the provisions of
Sections  404 or 405 of the Act, and (3) all such Product will be the subject of
a duly  approved  BLA and may be legally  transported  or sold under  applicable
Requirements of Law and IMMU guarantees that only those chemicals or sprays, and
the amounts of such  chemicals or sprays,  approved by  Governmental  Authority,
have  been  used in any of the  Product,  and (4) ail  Product  have  been  duly
approved by all  Governmental  Authority for commercial sale and shipment within
the United States.

         11.      Corporate Authority

                  During  the term of this  Agreement,  each  party  continually
represents  and warrants to the other that:  (a) it has full power and authority
to enter into this  Agreement  and  perform  and  observe  all  obligations  and
conditions  to be performed or observed by it under this  Agreement  without any
restriction by any other agreement or otherwise, (b) the execution, delivery and
performance  of this  Agreement  have  been  duly  authorized  by all  necessary
corporate action of that Party, (c) this Agreement  constitutes the legal, valid
and binding  obligation  of that Party,  (d) no approvals,  consents,  orders or
authorizations of or designation,  registration,  declaration or filing with any
Governmental  Authority (within, as a part of, or constituting the United States
of America) is required for the sale and  distribution of the Product other than
any  approvals  previously  obtained  from the  FDA,  (e)  there  is no  action,
proceeding, or investigation pending or, so far as each party knows, threatened,
which questions the validity of this Agreement, the patents and licenses related
to and for the Product, any actions taken or to be taken pursuant to this




                                      -10-

<PAGE>



Agreement,  and (f) the Product,  or any part thereof,  has not been  materially
adversely  affected  in any way as a result  of any  legislative  or  regulatory
change,  or any  revocation  of  license  or right to  manufacture,  distribute,
handle, store, sell or market any of the Product.

         12.      Trade Marks/Data

                  Neither  Party  shall  have  the  right to use the name of the
other Party or the other Party's trademarks, service marks, logos, other similar
marks or data and  information  in any manner except to the extent  necessary to
allow  each  party  hereto  to  carry  out  their   respective   obligations  as
contemplated herein, without the prior written approval of the other Party. Data
and information  which shall be deemed to belong to IMMU will be its proprietary
information and data relating to the Product, the identity of Product customers,
prescribing  physician data and the identity of payor coverage and reimbursement
policy data related to Product.  Data and  information  which shall be deemed to
belong to ICS shall be the data and information  related to services offered and
sold by ICS and all data and information  relating to any of ICS's customers and
their respective profiles.

         13.      Confidentiality

                  13.1.  Each  Party  acknowledges  that  as a  result  of  this
Agreement,  that each Party shall learn  Confidential  Information  of the other
Party. Each party shall treat  Confidential  Information  furnished by the other
party as if it were its own  proprietary  information,  and neither  Party shall
disclose  any  Confidential  Information  of the  other  Party to any  person or
entity,  or use, or permit any person or entity to use, any of such Confidential
Information,  excepting only: (a) disclosures on a confidential basis to and use
by the  directors,  officers,  employees,  and  agents  of  that  Party,  or its
affiliates,  who have a reasonable  need to know such  information in connection
with  that  Party's  performance  of this  Agreement  and who agree to keep such
information  confidential,  and (b)  disclosures  which are  required by law, or
legal process,  as reasonably  determined by that Party or its legal counsel, or
are made on a confidential  basis to that Party's  attorneys,  accountants,  and
other  professional  advisors  in  connection  with  matters  relating  to  this
Agreement.  The specific  material terms of this Agreement shall be deemed to be
Confidential Information of each Party.

                  13.2.  The  obligation  of  confidentiality   hereunder  shall
survive the termination of this Agreement for a period of five (5) years.

                  13.3.  Disclosure  Required  by Law. In the event that IMMU or
ICS shall be required to make disclosure of the other's Confidential Information
as a result of the issuance of a court order or other  government  process,  the
party  subject  to  such  requirement  promptly,  but  in  no  event  more  than
forty-eight (48) hours after learning




                                      -11-

<PAGE>



of such court  order or other  government  process,  shall  notify,  by personal
delivery,  mail, express delivery service, or facsimile, all pursuant to Section
16.0  hereof,  the other  party and,  at the other  party's  expense,  the party
subject to such  requirements  shall:  (a) take all reasonably  necessary  steps
requested  by the other party to defend  against the  enforcement  of such court
order or other government  process,  and (b) permit the other party to intervene
and  participate  with counsel of its choice in any  proceeding  relating to the
enforcement thereof.

                  13.4.  Advertising and Publicity.  Except for such disclosures
as are  deemed  necessary  in IMMU's or  ICS's,  as the case may be,  reasonable
judgment  to comply  with  applicable  law (such as, by way of  example  but not
limitation,  the  securities  laws of the United  States),  each of IMMU and ICS
agrees that  neither it nor anyone  acting on its behalf will make any  publicly
disseminated oral or written disclosure  relating to or referring to, or use any
advertising or publicity  which relates or makes  reference to, the other party,
this Agreement or the terms hereof, without in each case the other party's prior
approval  (which approval will not be  unreasonably  withheld or delayed);  each
party agrees to respond promptly to a disclosure  request,  but in any event not
later than five (5) business days from receipt of such a request.

                  13.5. Upon termination of this Agreement (for any reason) each
Party shall promptly: (i) return to the other Party or destroy all documentation
and  other  materials  (including  copies  of  original  documentation  or other
materials)  containing any Confidential  Information of the other Party; or (ii)
certify to the other  Party,  pursuant to a  certificate  in form and  substance
reasonably  satisfactory  to the other Party,  as to the destruction of all such
documentation and other materials.

         14.      Indemnification

                  14.1. Each Party shall indemnify, defend and hold harmless the
other and their  respective  Related  Parties as defined in  Appendix A attached
hereto and by this reference  incorporated  herein, from and against all claims,
liabilities,  losses,  damages, costs and expenses (including without limitation
reasonable  attorneys'  fees) arising  directly or indirectly  out of any act or
omission of that Party or any failure of that Party to perform and observe fully
all  obligations  and  conditions  to be  performed  or  observed  by that Party
pursuant to this  Agreement or any breach of any warranty  made by that Party in
this Agreement.  Further, IMMU does hereby protect,  indemnify and hold harmless
ICS and its related  parties from and against all claims,  liabilities,  losses,
damages, costs and expenses (including without limitation, reasonable attorneys'
fees and expenses)  imposed upon or incurred by or asserted  against ICS related
to or arising from (1 ) any claim of patent or copyright  infringement  relating
to the  subject  matter  of this  Agreement,  and (2) any loss of or  damage  to
property,  accident,  injury to or death of a person  or  persons  occurring  or
arising  from  the  use,  demonstration,   consumption,   ingestion,  digestion,
manufacture,  production and assembly,  of the Product and its transportation to
ICS, excepting only for claims




                                      -12-

<PAGE>



arising out of the act,  negligence  or omission of ICS or its Related  Parties.
Further, ICS does hereby agree to protect,  indemnify and hold harmless IMMU and
its Related Parties from and against all claims,  liabilities,  losses, damages,
costs and expenses (including without limitation,  attorneys' fees and expenses)
imposed upon or incurred by or asserted  against IMMU related to or arising from
any loss of or damage to property,  accident,  injury to or death of a person or
persons  occurring  or  arising  from  the  negligence  of ICS (or  its  Related
Parties),  excepting  herefrom,  any act,  negligence or omission of IMMU or its
Related  Parties.  NOTWITHSTANDING  THE FOREGOING OR ANY OTHER  PROVISION TO THE
CONTRARY CONTAINED IN THIS AGREEMENT, NEITHER PARTY SHALL BE LIABLE TO THE OTHER
PARTY FOR ANY CONSEQUENTIAL,  INCIDENTAL,  INDIRECT,  SPECIAL,  OR OTHER SIMILAR
DAMAGES  ARISING OUT OF OR IN  CONNECTION  WITH A BREACH OF THIS  AGREEMENT  OR,
EXCEPT AS SET FORTH IN SECTION 7, ANY EXPENSES,  CHARGES,  COSTS OR LIABILITIES,
WHETHER  FORESEEN  OR  UNFORESEEN,  ARISING  FROM  OR  RELATED  TO  THE  ACT  OF
TERMINATING THIS AGREEMENT.

                  14.2.  Each party  shall give the other  prompt  notice of any
potential claim for indemnification  hereunder,  and promptly after receipt by a
party  claiming  indemnification  under  this  Section  14.2  of  notice  of the
commencement of any action,  such indemnified party will notify the indemnifying
party of the commencement of the action and generally summarize such action. The
indemnifying  party  shall  have the right to  participate  in and to assume the
defense of such action with counsel of its choosing. An indemnifying party shall
not have the right to direct  the  defense  in such an action of an  indemnified
party if counsel to such indemnified  party has reasonably  concluded that there
may be defenses  available to it that are different  from or additional to those
available to the indemnifying party; provided,  however, that in such event, the
indemnifying  party  shall bear the  reasonable  fees and  expenses  of separate
counsel reasonably satisfactory to the indemnifying party. The failure to notify
an  indemnifying  party  promptly of the  commencement  of any such  action,  if
prejudicial   to  the  ability  to  defend  such  action,   shall  relieve  such
indemnifying  party of any liability to the indemnified party under this Section
14.2.  No  settlement  of any claim or action may be made without the consent of
the indemnifying party (which shall not be unreasonably withheld or delayed).

         15.      Insurance

                  During the term of this Agreement,  IMMU will maintain product
liability and commercial general liability  insurance having a limit of not less
than [*],  pursuant to one or more insurance  policies with reputable  insurance
carriers.  IMMU  shall  designate  ICS  as an  "additional  insured"  under  all
insurance policies referenced in this paragraph. As a condition precedent to the
effectiveness  of this  Agreement,  IMMU shall execute the Guarantee in the form
attached hereto as Schedule "B".





                                      -13-

<PAGE>



                  ICS shall provide IMMU with a certificate of insurance showing
that ICS is a named  insured  covered by the  commercial  and general  liability
policies of its parent company, Bergen Brunswig Corporation.

         16.      Notices

                  Any notice or other  communication  required  or desired to be
given to any Party under this Agreement  shall be in writing and shall be deemed
duly made when:  (a)  delivered  personally,  (b) deposited in the United States
mail,  first-class  postage prepaid,  and addressed to that Party at the address
for such  Party  set forth at the end of this  Agreement;  (c)  delivered  to an
express delivery service for delivery to that Party at that address; or (d) sent
by facsimile transmission,  with electronic  confirmation,  to that Party at its
facsimile  numbers  set  forth  at the  end of this  Agreement.  Any  notice  or
communication  shall  be  deemed  given  and  received  on  the  date  delivered
personally,  three business days after mailing,  one business day after delivery
to  an  express  delivery  service  and  upon  electronic   confirmation  during
recipients  normal  business  hours  (or the  next  business  day,  if  received
thereafter), if communicated by facsimile transmission. Any Party may change its
address or facsimile number for notices under this Agreement by giving the other
Party notice of such change.

         17.      Remedies

                  With  respect  to  the   provisions  of  Section  13  of  this
Agreement,  each Party  acknowledges  that in the event of any violation by that
Party of any of the provisions of Section 13 of this Agreement,  the other Party
may  suffer  irreparable  harm  and  its  remedies  at law  may  be  inadequate.
Accordingly,  in the event of any  violation or attempted  violation of any such
provisions of Section 13 by either  Party,  the other Party shall be entitled to
petition for a temporary restraining order, temporary and permanent injunctions,
specific  performance,  and other equitable  relief.  The rights and remedies of
each Party under this Agreement shall be cumulative and in addition to any other
rights or remedies  available to such Party,  whether under any other agreement,
at law, or in equity.

         18.      Governing Law and Attorneys Fees

                  All  questions  concerning  the  validity  or  meaning of this
Agreement or relating to the rights and  obligations of the Parties with respect
to performance  under this  Agreement  shall be construed and resolved under the
laws of the State of New York excluding the body of law relating to conflicts of
laws. In the event that either party takes legal action to enforce its rights or
remedies under this Agreement, the prevailing party shall be entitled to recover
its costs and expenses,  including reasonable  attorneys' fees, incurred in such
action.




                                      -14-

<PAGE>




         19.      Severability

                  The  intention of the Parties is to comply fully with all laws
and public policies, and this Agreement shall be construed consistently with all
laws and public policies to the extent  possible.  If and to the extent that any
court of competent jurisdiction determines that it is impossible to construe any
provision  of this  Agreement  consistently  with any law or public  policy  and
consequently  holds that  provision to be invalid,  such holding shall in no way
affect the  validity  of the other  provisions  of this  Agreement,  which shall
remain in full force and effect.

         20.      Tax Provision

                  Each party  shall bear all taxes  imposed on it as a result of
the  performance by such party under this Agreement  including,  but not limited
to, any sales tax and tax on or  measured  by any  payment  required  to be made
hereunder, any registration tax, or any tax imposed with respect to the granting
of other rights hereunder.  The parties shall cooperate fully with each other in
obtaining  and  filing  all  requisite   certificates  and  documents  with  the
appropriate  authorities and shall take such further action as may be reasonably
necessary to avoid the  deduction of any  withholding  or similar taxes from any
remittance of funds by one party to the other hereunder.

         21.      Non-Waiver

                  No failure by either  Party to insist upon  strict  compliance
with any term of this Agreement,  to exercise any option,  to enforce any right,
or to seek any remedy  upon any  default of the other  Party  shall  affect,  or
constitute  a  waiver  of,  the  first  Party's  right  to  insist  upon  strict
compliance,  to exercise  that option,  to enforce  that right,  or to seek that
remedy with respect to that default or any prior, contemporaneous, or subsequent
default.  No custom or practice of the Parties at variance with any provision of
this  Agreement  shall affect,  or constitute a waiver of, that Party's right to
demand strict compliance with all provisions of this Agreement.

         22.      Force Majeure

                  If the  performance  of any part of this  Agreement  by either
Party  shall be  affected  for any  length  of time by fire or  other  casualty,
government  restrictions,  war,  riots,  strikes  or labor  disputes,  lock out,
transportation delays, electronic disruptions,  telecommunication  failures, and
acts of God,  or any other  causes  which are beyond the  control of the Parties
(financial inability excepted), such Party shall not be responsible for delay or
failure of  performance  of this  Agreement  for such length of time,  provided,
however,  that the obligation of one Party to pay amounts due to any other Party
shall not be subject to the provisions of this Section. Each party shall use




                                      -15-

<PAGE>



its commercially  reasonable  efforts to minimize the impact on the other of any
force majeure event specified in this Section.

         23.      Captions

                  The captions of the various sections of this Agreement are not
part of the context of this Agreement, and are only labels to assist in locating
those sections, and shall be ignored in construing this Agreement.

         24.      Complete Agreement

                  This  Agreement  contains  the entire  agreement  between  the
Parties and supersedes all prior or contemporaneous  discussions,  negotiations,
representations,  warranties,  or agreements  relating to the subject  matter of
this  Agreement.  No  changes to this  Agreement  shall be made or be binding on
either Party unless made in writing and signed by both Parties.  All  schedules,
Exhibits,  Appendixes  referred to in this Agreement are incorporated herein and
made a part hereof as fully as if set forth herein.

         25.      Successors

                  Except as set forth in this Section,  neither Party shall have
the right to assign this  Agreement or any of such Party's rights or obligations
under this Agreement without the prior written consent of the other Party, which
consent shall not be unreasonably  withheld.  After providing  written notice to
IMMU,  ICS  may  assign  this  Agreement  to a  party  that  succeeds  to all or
substantially all of ICS's business or assets relating to this Agreement whether
by sale, merger, operation of law or otherwise.

         26.      Approvals

                  When this  Agreement  requires  the approval of one or both of
the parties to this  Agreement,  each and every such approval sought will not be
unreasonably withheld by the party required to provide its approval.

         27.      Relationship of the Parties

                  The  relationship  of the  Parties  is and  shall  be  that of
independent  contractors.   This  Agreement  does  not  establish  or  create  a
partnership or joint venture among the Parties.

         28.      Interpretation





                                      -16-

<PAGE>



                  The parties have jointly  negotiated this Agreement and, thus,
neither this  Agreement nor any  provision  hereof shall be  interpreted  for or
against  any party on the basis the party or the  party's  attorney  drafted the
Agreement or the provision at issue.

This  Agreement  shall  be  binding  upon,  inure  to  the  benefit  of,  and be
enforceable by and against the respective successors and assigns of the Parties.

IMMUNOMEDICS, INC.                            INTEGRATED COMMERCIALIZATION
                                              SOLUTIONS, INC.

By:/s/ Kevin F.X. Brophy                      By:/s/ Randall A. Perry

Name: Kevin F.X. Brophy                       Name:  Randall A. Perry

Title: Vice President-Finance and             Title:  Vice President, Operations
           Administration and
           Chief Financial Officer

Address and facsimile number:                 Address and facsimile number:

300 American Road                             4006 Beltline Road
Morris Plains, New Jersey 07950               Suite 200
Attn:  Kevin F.X. Brophy                      Addison, Texas 75244
         Vice President-Finance and           Attn:  Randall A. Perry
           Administration and                        Vice President, Operations
           Chief Financial Officer                   Facsimile:  (888) 333-1529
Facsimile:  (973) 605-8282






                                      -17-

<PAGE>



                                   APPENDIX A


As used in this Agreement,

"Act" means the Federal  Food,  Drug and Cosmetic  Act,  Title 21, United States
Code, as amended, and the regulations thereunder.

"BLA" means Biological License Application as defined in and contemplated by the
Act.

"Confidential   Information"   shall  mean  information,   and  data  considered
confidential by the party owning such  information,  whether visual,  oral or in
written form,  but does not include (1 ) information  which is or becomes public
without the fault or participation of the other party to this Agreement or which
is responsive to legal process or obligation,  (2) any  information  lawfully in
the receiving party's  possession prior to the date the receiving party receives
the disclosing  party's  information,  or (3) any information which either party
receives  from a  third  party  who  rightfully  possesses  and  discloses  such
information.

"Governmental Authority" shall mean any nation or government, any state or other
political subdivision thereof, or any entity exercising executive,  legislative,
judicial, regulatory or administrative functions of or pertaining to government.

"Person"  or  "Persons"  means any  corporation,  natural  person,  firm,  joint
venture,  partnership,  trust,  unincorporated  organization,  government or any
department or agency of any government.

"Related  Parties"  mean  the  successors,  subsidiaries,  parent  corporations,
affiliates, Directors, employees, agents, representatives,  related entities and
assigns of any Person.

"Requirement(s) of Law" means any law (including,  without limitation,  consumer
law),  treaty,  rule or  regulation or a final and binding  determination  of an
arbitrator or a determination  of a court or other  Governmental  Authority,  in
each case applicable to or binding upon such Person or any of its property or to
which such Person or any of its property is subject.




                                      -18-

<PAGE>




                                   SCHEDULE A

                                  Fee Schedule


Fixed  Monthly  Fee for  Services  Rendered  Under  Sections  1, 2 and 3 of this
Agreement:

Average Number of Orders
Processed and Shipped Per Day
During a Calendar Month                     Fee For Such Month

         [*]                                              [*]
         [*]                                              [*]
         [*]                                              [*]
         [*]                                              [*]
<TABLE>
<CAPTION>


                  Additional Costs                                                      Fee
<S>                                                                                     <C>

ICS will  store up to [*]  pallets of  refrigerated  product  per month  without
charge.  ICS will  assess a monthly  storage  charge of [*] each for  additional
pallets held for IMMU sale to customers.

Customer reporting/software design                                                      [*]

Customer management report setup (specific software design                              [*]
requirements for customer beyond specific reports)

Travel on IMMU's request                                                                [*]

Freight and Courier charges                                                             [*]
                                                                                        [*]

Telecommunication, facsimile, Fed Ex/UPS and postage                                    [*]
expenses
</TABLE>



                                      -19-

<PAGE>



                                   SCHEDULE B

                CONTINUING GUARANTY AND INDEMNIFICATION AGREEMENT




The undersigned does hereby guarantee to Integrated Commercialization Solutions,
Inc.,  its  parent  Bergen  Brunswig  Corporation  ("BBC")  and  each  of  BBC's
subsidiary  corporations  (together  the  "Group")  that each  shipment or other
delivery of any food,  drugs,  devices,  cosmetics,  or other merchandise now or
hereafter made by the  undersigned,  its  subsidiaries,  divisions or affiliated
companies to or on the order of any member of the Group will not be, at the time
of such shipment or delivery,  adulterated,  misbranded, or otherwise prohibited
within the meaning of the Federal Food, Drug and Cosmetic Act, 21 U.S.C.A.  #301
et seq., as amended, and in effect at the time of said shipment or delivery (the
Act) or within the meaning of any applicable state or municipal law in which the
definition of adulteration or misbranding  are  substantially  the same as those
contained in the Act; and such  merchandise is not, at the time of such shipment
or  delivery,   merchandise  which  may  not  be  introduced  or  delivered  for
introduction into interstate commerce under the provisions of section 404 or 405
of the Act (21 U.S.C.A.  #344 and #355);  and such  merchandise  is  merchandise
which may be  legally  transported  or sold  under the  provisions  of any other
applicable  federal,  state or  municipal  law; and the  undersigned  guarantees
further  that only those  chemicals  or sprays  approved  by  federal,  state or
municipal  authorities  have been used,  and any residue in excess of the amount
allowed by any such authorities has been removed therefrom.

The undersigned  hereby agrees to defend,  indemnify and hold the Group harmless
against any and all claims,  losses,  damages,  and liabilities  whatsoever (and
expenses connected  therewith,  including reasonable counsel fees), arising as a
result of (a) any actual or asserted  violation of the Act or any other federal,
state or local law or regulation by virtue of which products sold, supplied,  or
delivered by the  undersigned  shall be alleged or determined to be adulterated,
misbranded,  mislabeled  or otherwise not in full  compliance  with any federal,
state or local law or regulation,  and (b) the  possession,  distribution,  sale
and/or  use  of,  or by  reason  of the  seizure  of,  any of the  undersigned's
products,  including any prosecution or action whatsoever by any government body
or agency or (subject  to Section 14 of the  Distribution  and Product  Services
Agreement  between us) by any private party,  including claims of bodily injury,
death or property damage. The undersigned further agrees to maintain primary and
noncontributing  Products  Liability  Insurance  of not less than  $5,000,000.00
Combined Single Limit (Bodily Injury and Property Damage)  including each member
of the Group as Additional Insured as respects Broad Form Vendors Coverage, with
provision for at least 30 days prior written notice to the Additional Insured in
the event of  cancellation or material  reduction of coverage,  and upon request
promptly submit satisfactory evidence of such




                                      -20-

<PAGE>


insurance.  The  provisions set forth herein are in addition to, and not in lieu
of, any terms set forth in any purchase orders accepted by the undersigned.



IMMUNOMEDICS, INC.                /s/ Kevin F.X. Brophy           August 7, 1998
Guarantor(Name)                   Signature of Authorized Officer       Date


                                  Kevin F.X. Brophy, Vice President-Finance and
                                                      Administration and
                                                      Chief Financial Officer
                                  Name and Title

                                  300 American Road, Morris Plains, NJ 07950
                                  Address of Company

                                  (973) 605-8200
                                  Phone




                                      -21-
<PAGE>

                                                                    Exhibit 23.1




                          Independent Auditors' Consent



The Board of Directors
Immunomedics, Inc.:


We consent to  incorporation  by reference in the  registration  statements (No.
333-44501)  on  Form  S-3  and  (No.  33-56844  and  33-16260)  on  Form  S-8 of
Immunomedics,  Inc.  of  our  report  dated  August  3,  1998,  relating  to the
consolidated balance sheets of Immunomedics,  Inc. and subsidiary as of June 30,
1998 and 1997, and the related consolidated statements of operations, changes in
stockholders'  equity,  and cash  flows for each of the years in the  three-year
period  ended June 30, 1998,  which  report  appears in the June 30, 1998 annual
report on Form 10-K of Immunomedics, Inc.






                                                           KPMG Peat Marwick LLP


Short Hills, New Jersey
September 28, 1998

<PAGE>

<TABLE> <S> <C>

<ARTICLE>          5
<CIK>              0000722830
<NAME>             IMMUNOMEDICS, INC.
<MULTIPLIER>       1
       
<S>                                         <C>
<PERIOD-TYPE>                               12-MOS
<FISCAL-YEAR-END>                           JUN-30-1998
<PERIOD-START>                              JUL-01-1997
<PERIOD-END>                                JUN-30-1998
<CASH>                                          7,568,147
<SECURITIES>                                       14,845
<RECEIVABLES>                                   1,060,875
<ALLOWANCES>                                      (21,398)
<INVENTORY>                                       913,927
<CURRENT-ASSETS>                                9,881,887
<PP&E>                                         10,875,005
<DEPRECIATION>                                 (5,815,070)
<TOTAL-ASSETS>                                 14,941,822
<CURRENT-LIABILITIES>                           4,416,227
<BONDS>                                                 0
                                   0
                                             0
<COMMON>                                          375,861
<OTHER-SE>                                     10,149,734
<TOTAL-LIABILITY-AND-EQUITY>                   14,941,822
<SALES>                                         4,049,031
<TOTAL-REVENUES>                                7,595,539
<CGS>                                             191,343
<TOTAL-COSTS>                                  19,406,126
<OTHER-EXPENSES>                                        0
<LOSS-PROVISION>                                        0
<INTEREST-EXPENSE>                                      0
<INCOME-PRETAX>                               (11,810,587)
<INCOME-TAX>                                            0
<INCOME-CONTINUING>                           (11,810,587)
<DISCONTINUED>                                          0
<EXTRAORDINARY>                                         0
<CHANGES>                                               0
<NET-INCOME>                                  (11,810,587)
<EPS-PRIMARY>                                       (0.32)
<EPS-DILUTED>                                       (0.32)
        


</TABLE>


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