SOMATIX THERAPY CORPORATION
10-K, 1996-09-30
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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

                        FOR ANNUAL AND TRANSITION REPORTS
                     PURSUANT TO SECTIONS 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

(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, 1996

                                       OR

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

For the transition period from                      to 
                               --------------------    --------------------

                         Commission file number 0-14758

                           SOMATIX THERAPY CORPORATION
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

<TABLE>
<CAPTION>
                  DELAWARE                                                          94-2762045
<S>                                                                <C>       
(State or other jurisdiction of incorporation or organization)     (I.R.S. Employer Identification No.)
</TABLE>

           850 MARINA VILLAGE PARKWAY, ALAMEDA, CALIFORNIA 94501-1034
              (Address of principal executive offices and zip code)

                                 (510) 748-3000
              (Registrant's telephone number, including area code)

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

<TABLE>
<CAPTION>
          Title of each class      Name of each exchange on which registered
          -------------------      -----------------------------------------
<S>                                <C>    
          None
</TABLE>

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

                          Common Stock, $0.01 par value
- --------------------------------------------------------------------------------
                                (Title of class)

         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Sections 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes  X   No
                                              ---     ---

         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 registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendments to this Form 10-K. [ ]

         The aggregate market value of the voting stock held by non-affiliates
of the registrant as of August 19, 1996 was approximately $124,893,190 based
upon the closing sales price of the registrant's Common Stock as reported on the
Nasdaq National Market System on such date. The number of outstanding shares of
the registrant's Common Stock as of August 19, 1996 was 24,369,403.

                       DOCUMENTS INCORPORATED BY REFERENCE

         Parts of the following documents are incorporated by reference into
Parts III and IV of this Form 10-K Report: The Proxy Statement for the
Registrant's Annual Meeting of Stockholders scheduled to be held on December 18,
1996.
<PAGE>   2
                           ANNUAL REPORT ON FORM 10-K
                     FOR THE FISCAL YEAR ENDED JUNE 30, 1996

                                TABLE OF CONTENTS



<TABLE>
<CAPTION>
                                                                                                              Page
                                                                                                              ----
<S>                                                                                                           <C>    
PART I....................................................................................................      1
         Item 1.    Business..............................................................................      1
         Item 2.    Properties............................................................................     18
         Item 3.    Legal Proceedings.....................................................................     18
         Item 4.    Submission of Matters to a Vote of Security-Holders...................................     18

PART II...................................................................................................     19
         Item 5.    Market for Registrant's Common Equity and Related Stockholder Matters.................     19
         Item 6.    Selected Financial Data...............................................................     20
         Item 7.    Management's Discussion and Analysis of Financial Condition and Results
                    of Operations.........................................................................     20
         Item 8.    Financial Statements and Supplementary Data...........................................     22
         Item 9.    Changes in and Disagreements with Accountants on Accounting and
                    Financial Disclosure..................................................................     36

PART III..................................................................................................     37
         Item 10.   Directors and Executive Officers of the Registrant....................................     37
         Item 11.   Executive Compensation................................................................     38
         Item 12.   Security Ownership of Certain Beneficial Owners and Management........................     38
         Item 13.   Certain Relationships and Related Transactions........................................     38

PART IV...................................................................................................     39
         Item 14.   Exhibits, Financial Statement Schedules and Reports on Form 8-K.......................     39
</TABLE>
<PAGE>   3
                                     PART I

ITEM I.           BUSINESS

THE COMPANY

         Somatix Therapy Corporation ("Somatix" or the "Company") is a leader in
the field of gene therapy. The Company's mission is to research, develop and
commercialize proprietary processes for the genetic modification of cells and
their use in the treatment of human disease. The Company was formed through the
merger and/or acquisition of four companies since 1990: Hana Biologics, Inc.,
Somatix Corporation, GeneSys Therapeutics Corporation and Merlin Pharmaceutical
Corporation.

         Through the combination of these four companies and its internal
development programs, Somatix has established a substantial scientific and
intellectual property position in the technology of gene transfer. The Company
is pursuing the research and development of gene transfer and human gene therapy
utilizing retroviral, adenoviral, adeno-associated viral and synthetic vector
systems. Somatix is applying its core scientific expertise to the development of
novel treatments for cancer, neurological diseases and genetic diseases.

         In August 1995, Bristol-Myers Squibb ("BMS") made an initial $10
million investment in Somatix in return for certain rights including future
rights in Somatix' cancer programs. In May 1996, BMS made a second $10 million
investment after Somatix achieved a contractual clinical development milestone
in oncology. Pursuant to the terms of the BMS agreement, once Somatix decides to
license any of its internally initiated cancer programs, it must first give BMS
90 days to review and meet Somatix' terms of such a license. In February, 1996,
Somatix made a proposal to BMS regarding its GVAX(TM)* cancer vaccine programs.
At the end of the 90 day period, BMS requested and was granted an extension to
continue its evaluation of the GVAX(TM) cancer vaccine program.

         With the exception of fiscal year 1990, when the Company sold its cell
biology and diagnostic product lines, the Company's operations have been
unprofitable since its inception, and will continue to be so in the foreseeable
future, as the Company's research and development programs expand into
preclinical studies and clinical trials.

BACKGROUND OF GENE THERAPY

         Gene therapy is the genetic modification of cells for therapeutic
benefit. In ex vivo gene therapy, cells are removed from the patient,
genetically modified and processed using aseptic procedures, tested, and
injected or implanted back into the patient. In vivo gene therapy involves the
direct administration, to a patient, of a gene transfer vector that delivers the
gene into specific cells. In both cases, the product of this "transgene" is
typically a protein which may act therapeutically or otherwise stimulate a
clinically beneficial process (e.g., an antitumor immune response).

         Gene transfer vectors are the transport vehicles by which genes are
inserted into cells. To date, genetically engineered viruses have been the most
widely used vectors, because viruses have evolved efficient processes for cell
entry and subsequent expression of their genetic information. There are also
efforts underway in academia, government and industry to develop nonviral
methods of gene delivery. Every viral and nonviral gene transfer system has
unique benefits and unique limitations; these differences are important in
evaluating the scientific and clinical utility of each system.



- --------

     * GVAX is a trademark of Somatix Therapy Corporation.

                                       1.
<PAGE>   4
         Cell types may be selected or targeted for genetic modification based
on their ability to secrete proteins systemically or locally, their capability
to integrate into the tissue at the site of implantation and their life spans.
As a result, particular cell types may be better suited than others for the
delivery of a specific protein or for the treatment of a specific disease.
Researchers in the field of gene therapy are primarily working with seven major
cell types as candidates for genetic modification: epithelial cells,
fibroblasts, endothelial cells, neurons, muscle cells, hematopoietic stem cells,
and lymphocytes. These are all somatic cells, which differ from germ cells in
that the genetic information contained in them is not passed on to future
generations.

         The approaches of gene therapy to treating disease are still in the
development stage. A number of scientific challenges must be met before the
therapeutic potential of gene therapy is realized and gene therapy products are
commercially available. These challenges include attaining sufficient expression
of the desired gene, controlling or regulating the amount of the desired protein
produced, targeting specific cell types for modification and demonstrating the
safety and efficacy of any given approach in human clinical trials.

         In addition to its as yet unproven therapeutic effectiveness, gene
therapy may cause unintended side effects. Because with certain gene transfer
methods, the desired gene may be randomly inserted into a cell's genetic
material, it is theoretically possible that a cancer-causing gene could be
activated. The Company believes oncogene activation is unlikely, and that
additional genetic events are required for tumorigenesis to occur. Another risk
is the possibility that a disabled virus could theoretically reassemble and
become virulent. The Company believes that its process for disabling viruses
provides sufficient safeguards against such an event and that current testing
procedures further reduce this risk. Additional research with respect to such
unintended consequences may be necessary, however, before gene therapy products
can be commercialized.

PLATFORM TECHNOLOGY

         Through a strategy of mergers, acquisitions and internal development,
Somatix has built a broad-based research and development capability across
multiple gene transfer systems. The Company has research and development
programs in retroviral, adenoviral, adeno-associated viral and synthetic vector
systems, as well as hematopoietic stem cell gene transfer.

         RETROVIRAL VECTORS. The retroviral vector is the most advanced system
for the efficient, ex vivo genetic modification of dividing human cells, and is
the vector Somatix is utilizing for the modification of tumor cells, fibroblasts
and hematopoietic stem cells. In addition, Somatix is working on a
second-generation retroviral vector (i.e., lentiviral vector) that will allow
the in vivo delivery of therapeutic genes into nondividing cells. In support of
this effort, Somatix obtained an exclusive, worldwide license to a lentiviral
vector developed by Dr. Inder Verma and colleagues at The Salk Institute in
July, 1996. The lentiviral vector should eventually allow therapeutic gene
transfer into cells, such as neurons, which are clinically relevant but normally
do not divide. Coincident with the licensing of the lentiviral technology from
The Salk Institute, Dr. Verma was nominated to Somatix' board of directors.

         ADENOVIRAL VECTORS. With the acquisition of Merlin Pharmaceutical
Corporation in February, 1995, Somatix brought Thomas Shenk, Ph.D., to the
Company as a director and member of the scientific advisory board. The Company
has since expanded its program in the research and development of adenoviral
vectors, which are highly efficient in the short-term genetic modification of
nondividing human cells and have the capacity to carry long segments of genetic
information. The Company is developing a GM-CSF (described further below)
encoding adenovirus that can rapidly modify a wide spectrum of tumor cells,
which may result in faster "turnaround" of the autologous cancer vaccine and
potentially lower manufacturing costs. In addition, Somatix is developing a
proprietary adenovirus which may the avoid the cellular immune responses
triggered by the in vivo administration of first generation adenoviral vectors.
This latter adenovirus is being further modified to allow chromosomal
integration and control of gene expression via the delivery of oral agents.



                                       2.
<PAGE>   5
         ADENO-ASSOCIATED VIRAL ("AAV") VECTORS. In addition to Dr. Shenk, the
acquisition of Merlin Pharmaceutical Corporation brought Richard Samulski,
Ph.D., to the Company's scientific advisory board and augmented Somatix'
research efforts in adeno-associated viral AAV vectors. The AAV vector is an
important gene transfer tool because it can efficiently and stably insert its
genetic information into the chromosomes of nondividing target cells. Somatix
has developed a number of adeno-associated viral vectors for the in vivo genetic
modification of neurons, muscle cells, and liver cells, and has detected gene
expression for up to twelve months in animal model systems. Somatix is
conducting experiments to define the immunogenecity of AAV vectors, the extent
of vector diffusion after injection into the brain and other tissues, and to
design a system of transgene regulation which can be controlled through the oral
administration of certain well-tolerated agents. In addition, Somatix is
developing a manufacturing process for the production of clinical grade AAV
vectors.

         SYNTHETIC VECTORS. The Company's synthetic vector program is focused on
the development of lipid and polymer-mediated gene transfer systems for the in
vivo delivery of genetic information to cells via intravenous administration.
The near-term goal of the synthetic vector program is the targeted, nonviral
delivery of therapeutic gene sequences to cells in vivo. Longer-term goals
include the incorporation of viral proteins and genetic elements into these
vectors that will enhance the level and duration of transgene expression while
avoiding the immunogenicity and other limitations of current-generation viral
vectors.

         STEM CELL GENE THERAPY. Somatix is focusing on the genetic modification
of hematopoietic stem cells ("HSC") as a key strategy for the long-term gene
therapy of chronic disease. HSCs are the precursor cell population from which
the human body's entire complement of blood cells is continuously replenished.
Genetically modified HSCs, therefore, are seen as an ideal cell type for the
long-term, sustained delivery of therapeutic proteins to the circulation (e.g.,
factors VIII and IX for the treatment of hemophilia). Furthermore, there are
numerous genetic diseases which result in a deficiency of proteins required for
metabolic activities (e.g., Gaucher's disease, chronic granulomatous disease,
etc.). These diseases are also good candidates for stem cell gene transfer, and
will likely provide the initial "proof of concept" for stem cell gene therapy.
Consequently, Somatix' stem cell gene transfer group is evaluating several of
the Company's proprietary technologies for use in genetic modification of HSCs.
The most advanced effort in this area is gene therapy of chronic granulomatous
disease (see below).

PRODUCT DEVELOPMENT PROGRAMS

         The following table summarizes the Company's product development
programs:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------
PRODUCT                      GENE                 INDICATION                STATUS
- --------------------------------------------------------------------------------------------------
<S>                          <C>                  <C>                       <C>                
Autologous GVAX(TM)          GM-CSF(1)            Renal Cell                Phase I/II
Cancer Vaccine                                    Carcinoma                 (complete)
- --------------------------------------------------------------------------------------------------
                                                  Melanoma                  Phase I/II
- --------------------------------------------------------------------------------------------------
                                                  Prostate Cancer           Phase I
- --------------------------------------------------------------------------------------------------
Allogeneic GVAX(TM)          GM-CSF               Prostate Cancer           Preclinical
Cancer Vaccine
- --------------------------------------------------------------------------------------------------
                             GM-CSF               Colorectal Cancer         Preclinical
- --------------------------------------------------------------------------------------------------
Genetically Modified         p47phox(2)           Chronic                   Phase I
Hematopoietic Stem                                Granulomatous             (complete)
Cells                                             Disease
- --------------------------------------------------------------------------------------------------
Genetically Modified         TH(3) + GTP-         Parkinson's Disease       Preclinical
Autologous                   CHI(4)
Fibroblasts
- --------------------------------------------------------------------------------------------------
In Vivo Adeno-               TH + GTP-            Parkinson's Disease       Research
Associated Virus             CHI
- --------------------------------------------------------------------------------------------------
</TABLE>



                                       3.
<PAGE>   6
         (1) Granulocyte-macrophage colony stimulating factor 

         (2) A protein which is deficient in chronic granulomatous disease

         (3) Tyrosine hydroxylase

         (4) Guanosine triphosphate cyclohydrolase I

         Cancer, the second leading cause of death in the United States, is a
disease in which certain cells grow uncontrolled by the body's normal
self-regulatory mechanisms. Over 1.2 million new cases of cancer are diagnosed
each year in the United States. While there are several dozen forms of cancer,
Somatix' initial targets are melanoma, renal cell carcinoma ("RCC" or "kidney
cancer"), prostate and colorectal cancers. Hundreds of thousands of patients are
newly diagnosed with these cancers each year in the United States, with a large
percentage suffering a recurrence of their disease one to five years after
initial treatment.

         THE AUTOLOGOUS GVAX(TM) CANCER VACCINE. Somatix' most advanced
therapeutic program is the GM-CSF transduced autologous tumor cell vaccine, or
Autologous GVAX(TM) Cancer Vaccine. The vaccine is composed of the patient's own
(autologous) tumor cells which have been genetically modified to secrete the
immune-stimulating protein granulocyte-macrophage colony stimulating factor
("GM-CSF").

         The initial preclinical observations suggesting the potential efficacy
of a GM-CSF transduced tumor cell vaccine were reported by Dranoff and coworkers
(Proc. Natl. Acad. Sci. USA 90:3539[1993]). While several cytokine gene-modified
tumor cell vaccines had shown antitumor activity in murine cancer models, the
Dranoff study showed the GM-CSF gene-modified tumor cell vaccine to be a more
potent inducer of systemic antitumor immunity than those vaccines secreting
other effector molecules (e.g., IL-2, IL-4, IFN-[gamma], etc.). The wide
applicability of the GVAX(TM) cancer vaccine to multiple tumor types was
supported by data from several murine tumor models including the colon carcinoma
CT-26, renal carcinoma RENCA, fibrosarcoma CMS-5, Lewis lung carcinoma, and the
Dunning rat model of prostate carcinoma. GM-CSF secreting tumor cells were more
potent inducers of antitumor immunity than unmodified tumor cells in every model
tested.

         The Autologous GVAX(TM) Cancer Vaccine began phase I/II clinical
testing in patients with renal cell carcinoma at the Johns Hopkins Oncology
Center in December, 1993. This study was completed in 1995. In May 1994, a
second Phase I/II clinical trial started at the Netherlands Cancer Institute
("NKI") testing the GVAX(TM) cancer vaccine in patients with advanced melanoma.
A second Phase I/II advanced melanoma study at the Dana Farber Cancer Institute
started in early 1995. The treatment phases of both phase I/II melanoma studies
are expected to be completed in the first quarter of 1997. The Company has also
started a Phase I trial of the autologous GVAX(TM) cancer vaccine in prostate
cancer patients at the Johns Hopkins Oncology Center.

         The principal end points of these initial Autologous GVAX(TM) Cancer
Vaccine clinical trials are related to safety and tolerability. To date, phase
I/II investigators have administered approximately 300 vaccinations of the
autologous GVAX(TM) cancer vaccine in over 75 patients. The vaccine has proven
to be safe; adverse events have generally been confined to redness and swelling
at the vaccination site and minor flu-like symptoms of short duration.

         Preliminary indications of therapeutic activity include a marked
infiltration of white blood cells at the vaccination site, as well as cellular
activity at metastatic sites distant from the site of vaccine injection. This
cellular activity has been associated, in some patients, with a reduction in
metastatic tumor size at residual tumor sites. The phase I/II data suggest that
the injection of irradiated, GM-CSF secreting autologous tumor cells can trigger
a systemic antitumor response in some patients with metastatic disease. However,
the critical efficacy endpoint of any therapeutic investigation in cancer is
patient survival, and the autologous vaccine will require further clinical
testing to prove whether or not it can affect this endpoint in a statistically
significant way.

         THE ALLOGENEIC GVAX(TM) CANCER VACCINE. Somatix is now engaged in the
development of a second generation, genetically modified tumor cell vaccine. The
Allogeneic GVAX(TM) Cancer Vaccine is composed of lethally irradiated, GM-CSF
secreting tumor cells derived from tumor cell lines which are not
patient-specific and


                                       4.
<PAGE>   7
can therefore be manufactured at large scale. The vaccine can thus be produced,
tested, distributed and administered without first obtaining autologous tissue
from the cancer patient, reducing manufacturing costs and promoting ease of use.
The Company intends to file an investigational new drug ("IND") application in
the first quarter of calendar 1997, for the initial clinical evaluation of the
allogeneic vaccine in prostate cancer. Somatix is considering additional
allogeneic vaccine development for malignant melanoma and breast, colorectal and
ovarian cancers.

         CHRONIC GRANULOMATOUS DISEASE ("CGD"). The Company's initial clinical
evaluation of stem cell gene therapy is in the treatment of chronic
granulomatous disease, an immunodeficiency that compromises the ability of white
blood cells to eradicate bacterial and fungal infections. In collaboration with
Harry Malech, M.D. at the National Institutes of Health ("NIH"), the Company is
evaluating the use of gene therapy to treat this inherited genetic disease. Dr.
Malech has completed a Phase I clinical trial, in which patients received
autologous hematopoetic stem cells, genetically modified to produce the p47phox
protein. The study showed that the p47phox- modified stem cells can be safely
administered to humans and successfully generate functional white blood cells in
CGD patients. Somatix is continuing to develop this product using a primate
model system to further optimize both stem cell gene transfer and engraftment of
genetically modified HSCs.

         GENE THERAPY OF NEUROLOGIC DISEASES. Diseases of the central nervous
system ("CNS") are important targets for new drug development. Pharmaceuticals
to treat CNS diseases are the second largest drug expenditure category behind
cardiovascular drugs. However, the brain is one of the most difficult organs to
treat with drugs since the blood-brain barrier prevents many small molecules and
most proteins from passing out of the blood stream into target areas for
treatment. Additionally the brain is a highly complex, inaccessible organ which
operates as many distinct regions. Thus, systemically administered drugs often
affect multiple systems in the brain, increasing their toxicity. Therefore, it
may be a significant advantage to deliver drugs locally to the specific region
of the brain requiring therapy in order to avoid debilitating side effects.

         Gene therapy, in particular, appears to offer promise because it may be
used to promote cell-based delivery of therapeutic proteins: (i) to specific
regions of the brain; (ii) from inside the blood brain barrier; (iii) in a
continuous fashion; and (iv) for long periods of time. The lack of adequate drug
therapy for major neurodegenerative diseases such as Alzheimer's disease and
Parkinson's disease ("PD") and the discovery of a number of neuronal growth
factors ("neurotrophic factors") that could retard degeneration and perhaps
revitalize damaged neurons, make gene therapy an attractive experimental
approach to these diseases. Gene therapy of PD is the Company's most advanced
CNS program.

         Although the neurodegeneration that leads to PD is not well understood,
it is known that the loss of dopamine-producing cells causes the debilitating
movement symptoms of PD. Dopamine levels can be restored through the oral
administration of L-dopa, a precursor that is converted to dopamine, and
significantly alleviates the symptoms of PD. However, the clinical benefit of
L-dopa is attenuated after an average of five years in a majority of patients.
This is due to side effects of the drug relating to global exposure of the brain
to L-dopa, and the increased dosing required to overcome continued degeneration
of dopaminergic neurons.

         Somatix is evaluating the use of gene therapy to produce a continuous
and efficacious supply of L-dopa in the brain. Several therapeutic genes may
ultimately be required to treat the disease; however, one key transgene encodes
the rate limiting enzyme in the biosynthesis of L-dopa, tyrosine hydroxylase
("TH"). Additionally, scientists believe that administration of neurotrophic
factors to the region of the brain containing dopaminergic neurons may retard
their degeneration and keep natural dopamine production at levels sufficient for
normal motor function for a significantly longer period of time. Recent
preclinical data has suggested that neurotrophic factors may act on such
dopaminergic neurons in a potent and specific way. Eventually, Somatix may
introduce a PD therapy combining neurotrophic factors with TH gene delivery.
Somatix may have to license certain genes for these factors in order to fully
exploit a combination therapy.



                                       5.
<PAGE>   8
         CNS PROGRAM RESULTS AND PROGRESS. The Company has conducted extensive
studies of ex vivo and in vivo gene therapy of the CNS in rodent and nonhuman
primate models over the past three years. Ex vivo studies have centered on the
striatal implantation of autologous fibroblasts genetically modified, via
retroviral vector, to produce TH. The fibroblasts are derived from skin biopsies
of the animals and are genetically modified in the Company's gene transfer
laboratories. In vivo experiments have focused on AAV vectors encoding the TH
and GTP cyclohydrolase ("GTP-CHI") enzymes, which are injected directly into the
brain where target cells are genetically modified in situ. For either strategy,
the required stereotaxic surgery has been reduced to a routine clinical
procedure and does not represent a significant technical barrier.

         In late 1995, the Company undertook a large ex vivo preclinical study
involving 24 parkinsonian, nonhuman primates. The study was designed to measure
the longevity of gene expression and, secondarily, the behavioral effect of
implanting TH-modified fibroblasts. Certain primates received the genetically
modified cells while others served as untreated controls. The experiment was
completed after six months and post mortems have been conducted. While evidence
of transgene expression was observed at the longest time point studied to date
(four months), the fibroblast grafts were shown not to contain sufficient cells
for a rigorous efficacy evaluation of the ex vivo strategy. Experiments are
planned to address the technical issues raised by this study.

COMMERCIAL DEVELOPMENT

         In the United States, gene therapy is regulated by the FDA's Center for
Biologics Evaluation and Research ("CBER"). CBER regulation places a statutory
emphasis on manufacturing; that is, the genetic modification and processing of
cells for ex vivo gene therapy, and the manufacture of therapeutic gene transfer
vectors for in vivo gene therapy. To ensure compliance with FDA/CBER regulation,
Somatix carries out the ex vivo modification and processing of cells at
facilities under its own control. Somatix is pioneering the development of the
regulatory and manufacturing systems required for adherence to biologics
regulation as it applies to ex vivo gene therapy. Somatix has established a
pilot cell processing facility designed to operate in compliance with Good
Manufacturing Practices ("GMP"). The production of genetically modified cells is
intensive in its requirements of labor, materials, and facilities. Any further
expansion of Somatix' cell processing capabilities will require additional
investment in the physical, systems and staffing infrastructure required for the
manufacturing of biologics in the United States.

         The Company intends to market and sell certain of its products
directly, while relying on the sales and marketing expertise of potential
corporate partners for other programs. The decision to market products directly
or through corporate partners will be based on a number of factors, including
market size and concentration, the size and expertise of the partner's sales
force in a particular market and the Company's overall strategic objectives. The
Company is currently engaged in discussions with several potential partners.

COMPETITION

         The Company is aware of several development stage and established
enterprises, including prominent pharmaceutical and biotechnology firms, which
are exploring the field of human gene therapy or are actively conducting
research in gene therapy. The Company may also experience competition from other
companies which have acquired or may in the future acquire technology from
universities and other research institutions. As these companies develop, they
may create or acquire proprietary positions involving certain aspects of gene
therapy.

         Some disease indications being evaluated for gene therapy by Somatix
are treatable with existing and commercially available medicines. In some cases,
currently available therapies are not completely effective, have significant
toxicity or are very expensive. While Somatix believes that gene therapy has the
potential to provide new and more effective treatments, there is no assurance
that other companies will not develop treatments superior to Somatix' gene
therapy.




                                       6.
<PAGE>   9
PATENTS, PROPRIETARY RIGHTS AND LICENSES

         The Company's proprietary position includes rights under patents and
patent applications covering genetically modified cells, gene transfer vectors
for and methods of transferring foreign genes into such cells, and the use of
these genetically modified cells to treat certain diseases. Patent positions in
the field of biotechnology are generally highly uncertain and involve complex
legal and scientific questions. To date, no consistent policy has been developed
by the U.S. Patent and Trademark Office regarding the breadth of claims allowed
in biotechnology patents. Accordingly, there can be no assurance that patent
applications licensed to or submitted by the Company will result in the issuance
of patents, or that, if issued, patents will afford the Company protection
against competitors with similar technology. The Company also relies upon
unpatented proprietary technology. No assurance can be given that the Company
can meaningfully protect its rights with regard to such unpatented proprietary
technology or that competitors will not duplicate or independently develop
substantially equivalent technology.

         The Company believes that there may be litigation involving patent and
other intellectual property rights in the gene therapy area. If the Company were
involved, regardless of the outcome, a substantial portion of the Company's
financial and human resources could be involved. The Company's processes and
potential future products may be found to infringe patents which have been or
may be granted to competitors or research institutions. As the biotechnology
industry expands and more patents are issued, the possibility of infringement
may increase. Should this occur, legal action could be brought against the
Company, damages sought, and certain research and products enjoined, if a
competitor's patents were found by a court of competent jurisdiction to be
valid, enforceable and infringed. If such action were successful, in addition to
any potential liability for damages, the Company could be required to obtain a
license in order to continue to use the affected process or manufacture the
affected product, or to cease using such process or product. There can be no
assurance that the Company would prevail in such litigation, or that any
required license would be made available on acceptable terms, or at all.

         One of the Company's competitors holds an exclusive license to a United
States patent issued to the National Institutes of Health covering ex vivo gene
therapy (U.S. Patent No. 5,399,346 to Anderson, et al.). This patent is
exclusively licensed to Genetic Therapy Inc., which in 1995 was acquired by
Sandoz Pharmaceuticals. The United States Patent and Trademark Office ("PTO")
has declared an interference between a pending patent application exclusively
licensed to the Company, a patent application of another company, and the
Anderson et al. patent. The PTO will conduct an interference proceeding, which
is primarily intended to determine the priority of the invention rights among
the three parties, and, in addition, will review the validity and patentability
of the parties' patent filings. Somatix' application has been accorded senior
party status based on its priority filing date of July 5, 1985. The outcome of
these proceedings is uncertain, and is expected to take at least a year.
However, there can be no assurance that the Anderson et al. patent or the third
party patent application will not prevail, and that, if one or the other of them
prevails, that any rights under such will be available to the Company on
commercially reasonable terms.

         In addition, the Company is aware that a competitor has licensed
pending patent applications relating to certain types of genetically modified
cells. In particular, the Company is aware of a pending application covering
certain genetically modified endothelial cells and their use in gene therapy.
The patent application is assigned to the U.S. government, and the Company
believes that it is exclusively licensed to such competitor. This application
has a filing date later than the filing date of the endothelial cell patent
licensed to the Company. Nevertheless, many issues will have to be resolved
before priority is determined.

         Because patent applications in the United States are maintained in
secrecy until patents issue, and because publication of discoveries in the
scientific or patent literature often lags behind the actual discoveries,
Somatix cannot be certain that its licensors were the first creators of
inventions covered by its pending patent applications or that they were the
first to file such applications.



                                       7.
<PAGE>   10
         In order to manufacture and market its potential products, the Company
may be required to obtain licenses to patents or other proprietary rights of
third parties. There can be no assurance that the Company will be able to obtain
a license to any third party technology that it may require to conduct its
business or that, if obtainable, such technology can be licensed at a reasonable
cost. If the Company does not obtain such licenses, it could encounter delays in
introducing any such potential products while it attempts to design around such
patents, or it could find that the development, manufacture or sale of such
products could be foreclosed. Failure by the Company to obtain a license to any
technology that it may require to commercialize its technologies or potential
products may have a material adverse effect on the Company. In addition, the
Company could incur substantial costs in defending itself in suits brought
against it on such patents or in suits in which the Company's patents may be
asserted by it against another party.

         Somatix' policy is to file, where appropriate, patent applications
based on its own research to protect technology, inventions, and improvements
that are important to the development of its business. The Company also relies
upon trade secrets, expertise, continuing technological innovations, and
licensing opportunities to develop and maintain its competitive position.
Somatix plans to aggressively pursue patent applications to issuance and to
defend its patents against third parties. To date, Somatix' proprietary position
also includes patents and patent applications licensed from academic
institutions and a corporation. The Company's proprietary position is as
follows:

         Gene Transfer Methodology. Somatix has exclusively licensed from the
Whitehead Institute patent applications that have been filed in the United
States, Europe, Japan, Canada, and several other countries. These applications
cover vectors (modified disabled retroviruses used to transfer genes into cells)
that the Company is developing in its gene therapy programs.

         Somatix also has an exclusive license from The Whitehead Institute to
patent applications in the United States, Europe, and Japan that covers
packaging cell lines used to produce vectors, methods of construction, and
methods of use for introducing DNA into cells.

         In connection with its acquisition of Merlin Pharmaceutical Corporation
in February 1995, the Company acquired rights to novel adeno-associated virus
vector methodology, including licenses from DNX, Inc., the University of
Pittsburgh and the State University of New York. Under such licenses, the
Company has exclusive rights to several important inventions and patent
applications for AAV vectors, and to the production of those vectors for gene
therapy applications.

         In July 1996, Somatix licensed a new gene transfer technology from The
Salk Institute. This technology, based on lentiviral vectors, appears to be a
highly efficient method of introducing genes into non-dividing cells.

         The Company is also developing adenovirus and non-viral, synthetic
vectors for use in gene therapy, expanding its technology platform to five
distinct types of gene transfer system. The Company has filed, and will continue
to file, patent applications on technology developed internally, where
appropriate.

         Cell Types. Somatix has an exclusive license from The Whitehead
Institute to two U.S. patents, and a pending U.S. patent application, covering
genetically modified epithelial cells and methods for creating them; a European
patent has also been issued. Somatix also has an exclusive, worldwide license
from the Whitehead Institute to a U.S. patent, and to a U.S. patent application
and a related European patent, covering genetically modified fibroblasts fixed
in an extracellular matrix for implantation in patients.

         Somatix also has an exclusive, worldwide license from The Whitehead
Institute to patent applications for genetically modified hepatocytes and
endothelial cells as well as methods for their creation and use in gene therapy.
A European patent has issued on the creation and use of genetically modified
endothelial cells.




                                       8.
<PAGE>   11
         Gene Therapy Applications. Somatix has an exclusive, worldwide license
from the University of California to an issued patent and a U.S. patent
application covering methods for treating diseases of the central nervous system
using genetically modified cells. The Company also has an exclusive license to a
patent application covering the genetic modification of cells to express GTP
cyclohydrolase, which may be useful for the gene therapy treatment of PD.

         Somatix also has an exclusive, worldwide license from The Johns Hopkins
University and the University of Texas to a patent application, and an issued
European patent, for the use of genetically modified cells for cancer vaccines.
The Company also has an exclusive, worldwide license from the Whitehead
Institute to their interest in a patent application for the use of genetically
modified tumor cells expressing GM-CSF for use as cancer vaccines.

         Additionally, the Company is currently negotiating or has obtained
exclusive rights to patents and patent applications covering the use of AAV
vectors for gene therapy via muscle tissue, cardiac tissue, the central nervous
system, and the gut, which may be useful in the Company's programs.

         The Company has acquired significant proprietary rights under license
agreements that permit the licensors to terminate those agreements in the event
of certain material breaches by the Company. Although the Company has no reason
to believe it is currently in default under any of these agreements, there can
be no assurance that such defaults will not occur in the future. Should a
default occur, and should any of those agreements be terminated in the future,
the Company could lose the right to continue to develop one or more of these
potential products. Patent prosecution involves collaboration between Somatix'
in-house patent counsel and outside intellectual property counsel.

ACCESS TO PROPRIETARY GENES

         Some of the genes used by the Company in its gene therapy products are
or may become patented by third parties. As a result, the Company may be
required to obtain licenses under such patents in order to conduct certain
research or to manufacture or market products that contain proprietary genes.
There can be no assurances that these licenses will be granted. The Company is
aware of proceedings to determine rights to the human GM-CSF cDNA sequence in
the United States and Europe. In the United States, in the most recent public
disclosure of which the Company is aware, the Board of Patent Appeals and
Interferences granted a motion by a third party in an interference proceeding
stating that the human GM-CSF cDNA sequence is not patentable over the prior
art. In Europe, a hearing in an opposition proceeding initiated by a third party
to invalidate a European patent covering the human GM-CSF cDNA was unsuccessful.
The decision by the European Patent Office Opposition Division upholding the
patent has been appealed by this third party. There can be no assurance of the
outcome of these proceedings or the outcome o these proceedings on appeal, or
that, if required, a license of rights to the gene sequence will be available to
the Company on commercially reasonable terms, if at all.

GOVERNMENT REGULATION

         The Company's potential products will be subject to regulation by the
FDA and will require FDA approval before being commercially marketed for human
therapeutic use in the United States. Similar regulatory approval is also
required in foreign countries. The Company believes that its potential products
will be regulated by the FDA as biologic products. In order to initiate the
clinical trials needed to obtain supporting data for marketing approval, the
Company must file an IND with the FDA. An IND includes the results of
preclinical studies, methods of manufacturing and the proposed plan for clinical
trials. If the FDA finds deficiencies in the proposed plan, or otherwise
concludes that it would not be reasonably safe to proceed with the planned
studies, it may require changes in the IND before allowing the clinical studies
to begin.

         Clinical trials are usually conducted in three phases that may take
several years to complete. The initial Phase I clinical studies are primarily
conducted to establish safety; however, some Phase I clinical studies that


                                       9.
<PAGE>   12
involve terminal diseases may include preliminary efficacy evaluations as well.
Phase I studies may last from six months to over one year, and usually involve
15 to 50 people. Once safety parameters are established, Phase II studies are
initiated to determine therapeutic activity, as well as optimal dosing and route
of administration. Phase II studies may involve 20 to 100 people or more. Phase
III studies are conducted to demonstrate therapeutic efficacy in a statistically
significant manner at the optimal dose, route and schedule of administration.
These studies may include 200 to 1,000 patients. During all phases of clinical
trails, the FDA must be given periodic progress reports and must be notified
regarding adverse reactions, clinical protocol changes and product changes. The
FDA may suspend clinical studies if clinical data indicate that patients are
being subjected to unreasonable risks. The uncertainty of the regulatory and
clinical research process could adversely affect the Company's ability to
clinically test, manufacture or market products.

         Once clinical trials are completed, the product must receive FDA
marketing approval. The Company must submit a Product License Application
("PLA") and Establishment License Application ("ELA"). Generally, the FDA takes
between one and five years to review these applications, and once approved,
continues to monitor the effects of the treatment. Even if a product is made
commercially available, the FDA has the power to limit or prevent further
production, based on findings of its surveillance program.

         Additionally, the NIH has established guidelines for research involving
recombinant DNA molecules, which Somatix uses. The Company now complies with,
and intends to continue to comply with these guidelines. Until recently,
guidelines stated that proposals to conduct clinical research involving gene
therapy be reviewed by the NIH's Recombinant DNA Advisory Committee (the "RAC").
Somatix' renal cell carcinoma, prostate cancer and U.S. melanoma protocols were
approved by this body. However, new guidelines are being developed that may
remove RAC's oversight responsibilities for many gene therapy protocols. The
impact of these new guidelines on the cost of or timing of clinical trials
cannot be determined at this time.

         As discussed, gene therapy is a novel approach to treating disease.
Since it has not been tested extensively in humans, regulatory requirements
governing its testing are subject to review. The uncertainty of these
requirements may result in extensive delays in initiating clinical trials and in
the regulatory approval process. Regulatory requirements ultimately imposed
could adversely affect the Company's ability to test, manufacture or market
products.

COMPLIANCE WITH ENVIRONMENTAL LAWS

         The Company's business is subject to regulation under state and federal
laws regarding environmental protection and hazardous substances control. The
Company believes that its compliance with these laws has had no adverse impact
upon its capital expenditures, earnings or competitive position. Federal and
state agencies and congressional committees have expressed interest in further
regulation of biotechnology. The Company is unable to estimate the extent and
impact of regulation in the biotechnology field resulting from such future
federal, state or local legislation or administrative action.

         This Form 10-K contains, in addition to historical information,
forward-looking statements that involve risks and uncertainties. The Company's
actual results could differ materially from the results discussed in the
forward-looking statements. Factors that could cause or contribute to such
differences include those discussed in "Risk Factors" as well as those discussed
elsewhere in this Form 10-K.




                                       10.
<PAGE>   13
                                  RISK FACTORS

FUTURE CAPITAL NEEDS; UNCERTAINTY OF ADDITIONAL FINANCING

         The Company anticipates that its existing cash and interest income will
be adequate to satisfy its capital requirements for at least the next 12 months.
The Company's future capital requirements will depend on many factors, including
the progress of the Company's research and development, the scope and results of
preclinical studies and clinical trials, the cost of obtaining regulatory
approvals, the rate of technological advances, determinations as to the
commercial potential of the Company's products under development, the status of
competitive products and the establishment of manufacturing capacity. The
Company anticipates that it will be required to raise substantial additional
funds, including funds raised through collaborative relationships and public or
private financings. Because of the Company's significant long-term capital
requirements, it may seek to access the public equity markets whenever
conditions are favorable, even if it does not have an immediate need for
additional capital at that time. No assurance can be given that additional
financing will be available on acceptable terms, or at all. If adequate funds
are not available, the Company will be required to curtail significantly its
research and development programs or may be required to discontinue its programs
in their entirety and liquidate its assets.

EARLY STAGE OF DEVELOPMENT; NO DEVELOPED OR APPROVED PRODUCTS

         Somatix' potential gene therapy products are in research and
development. No revenues have been generated from the sale of any of such
products, nor are any such revenues expected for at least the next several
years. The products currently under development by the Company will require
significant additional research and development efforts, including extensive
preclinical and clinical testing and regulatory approval, prior to commercial
use. There can be no assurance that the Company's research and development
efforts will be successful, that any of the Company's potential gene therapy
products will prove to be safe and effective in clinical trials or that any
commercially successful products will ultimately be developed by the Company.
Even if developed, these products may not receive regulatory approval or be
successfully introduced and marketed at prices that would permit the Company to
operate profitably.

TECHNOLOGICAL UNCERTAINTY

         Gene therapy is a new technology, and existing preclinical and clinical
data on the safety and efficacy of gene therapy are very limited. Data relating
to the Company's specific gene therapy approaches are even more limited. The
Company's GVAX(TM) cancer vaccine product is being tested in Phase I human
clinical trials primarily to determine its safety; none of the other products
under development at the Company are in human clinical trials. The results of
preclinical studies do not predict safety or efficacy in humans. Possible
serious side effects of gene therapy include viral infections, the initiation of
cancers and possible autoimmune diseases in the patient. There can be no
assurance that unacceptable side effects will not be discovered during
preclinical and clinical testing of the Company's potential products or
thereafter. There are many reasons that potential products that appear promising
at an early stage of research or development do not result in commercialization.
Although the Company is testing one of its proposed products in Phase I clinical
trials, there can be no assurance that the Company will be permitted to
undertake human clinical trials for any of its other products or that the
results of such testing will demonstrate safety or efficacy. Even if clinical
trials are successful, there is no assurance that the Company will obtain
regulatory approval for any indication, or that an approved product can be
produced in commercial quantities at reasonable costs, or be successfully
marketed. The Company has also recently begun development of in vivo approaches
to gene therapy that will target specific cells. There can be no assurance that
the desired specificity will be attained or that such products will not have
serious side effects.




                                       11.
<PAGE>   14
OPERATING LOSS AND ACCUMULATED DEFICIT

         The Company has incurred net losses since its inception. At June 30,
1996, the Company's accumulated deficit was approximately $170.2 million. Such
losses have resulted principally from expenses incurred in the Company's
research and development programs, the acquisition of new technology, and to a
lesser extent, from general and administrative expenses. The Company incurred a
loss of $20.7 million in fiscal 1996 and expects to incur substantial and
increasing losses for at least the next several years due primarily to the
expansion of its research and development programs, including preclinical
studies, clinical trials and manufacturing. The Company expects that losses will
fluctuate from quarter to quarter and that such fluctuations may be substantial.
There can be no assurance that the Company will successfully develop,
commercialize, manufacture or market its products or ever achieve or sustain
product revenues or profitability.

VOLATILITY OF STOCK PRICE

         The market prices for securities of biopharmaceutical and biotechnology
companies (including the Company) have historically been highly volatile, and
the market has from time to time experienced significant price and volume
fluctuations that are unrelated to the operating performance of particular
companies. Factors such as fluctuations in the Company's operating results,
announcements of technological innovations or new therapeutic products by the
Company or its competitors, governmental regulation, developments in patent or
other proprietary rights, public concern as to the safety of products developed
by the Company or others and general market conditions may have a significant
effect on the market price of the Common Stock.

UNCERTAINTY OF GOVERNMENT REGULATORY REQUIREMENTS; LENGTHY APPROVAL PROCESS

         Because gene therapy is a relatively new technology and has not been
extensively tested in humans, the regulatory requirements governing gene therapy
products are uncertain and may be subject to substantial further review by
various regulatory authorities in the United States and abroad. These uncertain
requirements may result in extensive delays in initiating clinical trials and in
the regulatory approval process. Regulatory requirements ultimately imposed
could adversely affect the Company's ability to clinically test, manufacture or
market products.

         The Company believes that its potential products will be regulated by
the FDA as biologics. Each potential product for a specific disease application
may be subject to regulation as a separate biologic, depending on its intended
use and FDA policy. The regulatory process for new therapeutic products,
including the required preclinical and clinical testing, is lengthy and
expensive, and there can be no assurance that FDA approvals will be obtained in
a timely manner, if at all. Future United States or foreign legislative or
administrative actions could also prevent or delay regulatory approval of the
Company's products. There can be no assurance that the Company will be able to
obtain the necessary authorizations to initiate clinical trials or approvals to
market any of its potential products. Even if FDA regulatory approvals are
obtained, a marketed product is subject to continual review. Later discovery of
previously unknown problems or failure to comply with the applicable regulatory
requirements may result in product marketing restrictions or withdrawal of the
product from the market, as well as possible civil or criminal sanctions. In
addition, many academic institutions and companies doing research in the gene
therapy field are using a variety of approaches and technologies. Any adverse
results obtained by such researchers in preclinical or clinical studies could
adversely affect the regulatory environment for gene therapy products generally,
possibly leading to delays in the approval process for the Company's potential
products.

         On October 25, 1993, the vaccines and related biological products
advisory committee to the Center for Biologics Evaluation and Research ("CBER")
of the FDA met to review issues related to gene therapy, including the use of
retroviruses and adenoviruses. The committee did not recommend limiting the use
of viral vectors in gene therapies and made certain recommendations that will be
incorporated into a revision of the FDA's 1991 "Points to Consider" document
related to gene therapies and somatic cell therapies. There can be no assurance,



                                       12.
<PAGE>   15
however, that new guidelines will not be instituted, or that Somatix will be
able to continue to comply with existing or future regulations.

         The Company's business is subject to regulation under state and federal
laws regarding environmental protection and hazardous substances control. The
Company believes that its efforts to comply with these laws have had no adverse
impact upon its capital expenditures, results of operations or competitive
position, but there can be no assurance that this situation will continue.
Federal and state agencies and congressional committees have expressed interest
in further regulation of biotechnology. The Company is unable to estimate the
extent and impact of regulation in the biotechnology field resulting from any
future federal, state or local legislation or administrative action.

DEPENDENCE UPON KEY PERSONNEL AND COLLABORATIVE RELATIONSHIPS

         The Company's success is highly dependent on the retention of principal
members of its management and scientific staff and the recruitment of additional
qualified personnel. The loss of key personnel or the failure to recruit
necessary additional qualified personnel could have an adverse effect on the
operations of the Company. There is intense competition from other companies,
research and academic institutions and other organizations for qualified
personnel in the areas of the Company's activities. There is no assurance that
Somatix will be able to continue to attract and retain the qualified personnel
necessary for the development of its business. These activities are expected to
require the addition of new personnel with expertise in the areas of clinical
testing, manufacturing, marketing and distribution and the development of
additional expertise by existing personnel. The failure to acquire such
personnel or develop such expertise could adversely affect prospects for the
Company's success.

         The Company has clinical trial arrangements with The Johns Hopkins
University covering a Phase I clinical trial to treat kidney cancer patients,
now in progress, and a Phase I/II clinical trial to treat prostate cancer
patients for which RAC approval has been obtained, but for which no patients
have yet been enrolled. The Company has additional arrangements with the
Netherlands Cancer Institute and the Dana Farber Cancer Center to treat melanoma
patients in two separate Phase I clinical trials. Both trials are currently in
progress. In the event that any of these relationships are terminated, the
completion and evaluation of clinical trials could be adversely affected. In
addition, the Company has an arrangement with the Parkinson's Institute of Santa
Clara, California to provide animal facilities, animals and consulting services
in connection with preclinical testing of its gene therapy product for PD. If
the relationship were terminated, progress of preclinical testing would be
adversely affected.

         The Company depends in part on the continued availability of outside
scientific collaborators performing research, which may be funded by the
Company, in certain areas relevant to the Company's research. These
relationships generally may be terminated at any time by the collaborator,
typically by giving 30 days' notice to the Company. The Company's scientific
collaborators are not employees of the Company. As a result, the Company has
limited control over their activities and can expect that only limited amounts
of their time will be dedicated to Company activities. The Company's agreements
with these collaborators as well as those with the Company's scientific
consultants provide that any rights the Company obtains as a result of the
research efforts of these individuals will be subject to the rights of the
research institutions in such work. In addition, some of these collaborators
have consulting or other advisory arrangements with other entities that may
conflict with their obligations to the Company. For these reasons, there can be
no assurance that inventions or processes discovered by the Company's scientific
collaborators or scientific consultants will become the property of the Company.

PATENTS, PROPRIETARY RIGHTS AND LICENSES

         Patent positions in the field of biotechnology are generally highly
uncertain and involve complex legal and scientific questions. To date, there has
emerged no consistent policy regarding the breadth of claims allowed in
biotechnology patents, especially in the area of gene therapy. Accordingly,
there can be no assurance that patent applications and patents licensed to the
Company will result in patents being issued or that, if and when issued, the


                                       13.
<PAGE>   16
patents will afford protection against competitors with similar technology. The
Company has licensed two U.S. patents covering the ex vivo modification of cells
to treat diseases of the central nervous system, and all three patents have
filing dates earlier than the filing date of the competitor's patent. However,
there can be no assurance that the competitor's patent will not remain in force,
and if it does, that any rights under the patent will be available to the
Company on commercially reasonable terms. The Company also relies upon
unpatented proprietary technology. No assurance can be given that the Company
can meaningfully protect its rights in such unpatented proprietary technology or
that others will not duplicate or independently develop substantially equivalent
technology.

         The Company's processes and potential products may conflict with
patents which have been or may be granted to competitors, academic institutions,
universities or others. As the biotechnology industry expands and more patents
are issued, the risk increases that the Company's processes and potential
products may give rise to claims that they infringe the patents of others. Such
other persons could bring legal actions against the Company claiming damages and
seeking to enjoin certain research, manufacturing and marketing of the affected
process or potential product. If any such actions are successful, in addition to
any potential liability for damages, the Company could be required to obtain a
license in order to continue to use the affected process or to manufacture or
use the affected product or cease using such product or process if enjoined by a
court. There can be no assurance that the Company would prevail in any such
action or that any license required under any such patent would be made
available on acceptable terms, or at all. The Company believes that there may be
significant litigation in the industry regarding patent and other intellectual
property rights. If the Company becomes involved in such litigation, it could
consume a substantial portion of the Company's financial and human resources,
regardless of the outcome of such litigation.

         One of the Company's competitors has been granted an exclusive license
to a United States patent issued to the National Institute of Health covering ex
vivo gene therapy. While the Company has licensed two U.S. patents covering the
ex vivo modification of epithelial cells and one U.S. patent covering the ex
vivo modification of cells to treat diseases of the central nervous system, and
while all three patents' filing dates are earlier than the filing date of the
competitor's licensed patent, there can be no assurance that the competitor's
patent will not prevail and that if it prevails, that any rights under such will
be available to the Company on commercially reasonable terms, if at all.

         In addition, the Company is aware of pending patent applications which
have been licensed to another competitor of the Company relating to certain
types of genetically modified cells. For example, the Company is aware of a
pending application covering genetically modified endothelial cells and their
use in gene therapy. The patent application is assigned to the United States
Government, and it is believed that the patent application is exclusively
licensed to a competitor. There is no assurance that a license to this or
related patent applications will be available to the Company. Furthermore, as
gene therapy becomes more established, others may enter the field who have
patent rights to genes and technology which may be used in gene therapy. If the
Company is unable to obtain licenses to such patents, its business may be
substantially and adversely affected. In addition, since patent applications in
the United States are maintained in secrecy until patents issue, and since
publication of discoveries in the scientific or patent literature often lags
behind actual discoveries, Somatix cannot be certain that its licensors were the
first creators of inventions covered by its pending patent applications or that
they were the first to file patent applications for such inventions.

         In order to manufacture and market its products, the Company may be
required to obtain licenses to patents or other proprietary rights of third
parties. There can be no assurance that the Company will be able to obtain a
license to any third party technology that it may require to conduct its
business or that, if obtainable, such technology can be licensed at a reasonable
cost. If the Company does not obtain such licenses, it could encounter delays in
introducing any such potential products while it attempts to design around such
patents, or it could find that the development, manufacture or sale of such
potential products could be adversely effected. Failure by the Company to obtain
a license to any technology that it may require to commercialize its
technologies or potential products may have a material adverse effect on the
Company. In addition, the Company could incur substantial


                                       14.
<PAGE>   17
costs in defending itself in lawsuits brought against it on such patents or in
lawsuits in which the Company's patents may be asserted by it against another
party.

         A number of the DNA sequences which the Company expects to use in its
gene therapy products are or may become patented by third parties. As a result,
the Company may be required to obtain licenses under such patents in order to
conduct certain research, to manufacture or to market products that contain
proprietary genes. There can be no assurance that such licenses will be
available on commercially reasonable terms, if at all. Although the rights to
the DNA Sequence for the Form of Factor VIII used by the Company have not yet
been determined, the Company is aware of United States patents for factor VIII
DNA sequences that have been licensed to competitors for exclusive use in their
gene therapy programs. Unless the Company can similarly license such sequences
or other sequences, the Company may not be able to commercialize its hemophilia
program. The Company is aware of proceedings to determine rights to the human
GM-CSF cDNA sequence in the United States and Europe. In the United States, in
the most recent public disclosure of which the Company is aware, the Board of
Patent Appeals and Interferences granted a motion by a third party in an
interference proceeding stating that the human GM-CSF cDNA sequence is not
patentable over the prior art. In Europe, an Opposition proceeding initiated by
a third party to invalidate a European patent covering human GM-CSF cDNA was
unsuccessful. The decision by the European Patent Office Opposition Division
upholding the patent has been appealed by this third party. There can be no
assurance of the outcome of these proceedings or the outcome of these
proceedings on appeal, or that, if required, a license of rights to the gene
sequence will be available to the Company on commercially reasonable terms, if
at all.

         The Company has acquired significant proprietary rights under license
agreements that permit the licensors to terminate those agreements in the event
of certain material breaches by the Company. Although the Company is not
currently in default under any of these agreements, there can be no assurance
that such defaults will not occur in the future. Should a default occur, and
should any of those agreements be terminated in the future, the Company could
lose the right to continue to develop one or more of these potential products.

COMMERCIALIZATION:  LACK OF MANUFACTURING OR MARKETING EXPERIENCE

         The Company intends to market and sell some of its potential products
directly, while relying on sales and marketing expertise of potential corporate
partners for other programs. The Company has no experience in sales, marketing
or distribution of biopharmaceutical products and has not developed a specific
sales and marketing plan with respect to any of its potential products. The
decision to market products directly or through corporate partners will be based
on a number of factors including market size and concentration, the size and
expertise of the partner's sales force in a particular market and the Company's
overall strategic objectives. The Company is currently engaged in various stages
of discussions with potential partners. There can be no assurance that the
Company will be able to establish such relationships on acceptable terms and
conditions, or at all.

         The Company's current commercialization strategy is to sell genetically
modified cells to hospitals and clinics. The Company will be required to operate
facilities in which each patient's cells are genetically modified, processed and
tested in compliance with the Good Manufacturing Practices published in the U.S.
Code of Federal Regulations. Currently, the Company can manufacture genetically
modified cells in quantities sufficient to meet its needs for clinical testing
but does not have the capability to manufacture sufficient quantities to meet
large-scale commercial requirements. The Company believes that its processes can
be scaled-up efficiently to meet its anticipated future requirements, but there
can be no assurance that problems or delays will not arise in such scale-up. The
manufacture of sufficient quantities of the Company's potential products can be
an expensive, time-consuming and complex process. If the Company is unable to
develop such manufacturing capabilities, the Company's ability to commercialize
its products will be adversely affected. This could prevent or delay submission
of products for regulatory approval and initiation of new development programs,
which would have a material adverse effect on the Company.



                                       15.
<PAGE>   18
COMPETITION

         The gene therapy field is relatively new and rapidly evolving, and it
is expected to continue to undergo significant and rapid technological change.
Rapid technological development could result in the Company's potential
products, services or processes becoming obsolete before the Company recovers a
significant portion of its related research, development and capital
expenditures. The Company will experience competition both from other companies
in the field of gene therapy and from companies which have other forms of
treatment for the diseases targeted by the Company. The Company is aware of
several development stage and established enterprises, including major
pharmaceutical and biotechnology firms as well as several major universities,
which are exploring the field of human gene therapy or are actively engaged in
research and development in areas including both retroviral vectors and other
methods of gene transfer. To the Company's knowledge, at least one of these
companies and several universities have participated in clinical trials using
retroviral vectors. The Company may also experience competition from companies
that have acquired or may acquire technology from such universities and other
research institutions. As these companies develop their technologies, they may
develop proprietary positions in certain aspects of gene therapy. Certain
competitors and potential competitors of the Company have substantially greater
product development capabilities and financial, scientific, marketing and human
resources than the Company, and other competitors of the Company may enter into
collaborative relationships with other companies having such greater resources.
Other companies may succeed in developing products earlier than the Company,
obtaining FDA approvals for such products more rapidly than the Company, or
developing products that are more effective than those proposed to be developed
by the Company. There can be no assurance that research and development by
others will not render the Company's technology or products obsolete or
non-competitive or result in treatments superior to any therapy developed by the
Company, or that any therapy developed by the Company will be preferred to any
existing or newly developed technologies.

PRODUCT LIABILITY AND INSURANCE

         Clinical trials or marketing of any of the Company's potential products
may expose the Company to liability claims resulting from the use of such
products. These claims might be made directly by consumers, health care
providers or by others selling such products. The Company currently maintains
product liability insurance with respect to its former product lines and this
coverage includes clinical trials. The policy coverage is $5 million and is on a
claims made basis. There can be no assurance that the Company will be able to
maintain such insurance or, if maintained, that sufficient coverage can be
acquired at a reasonable cost. An inability to maintain insurance at acceptable
cost or at all could prevent or inhibit the clinical testing or
commercialization of products developed by the Company. A product liability
claim or recall could have a material adverse effect on the business or
financial condition of the Company.

HAZARDOUS MATERIALS; ENVIRONMENTAL MATTERS

         The Company's research and development activities involve the
controlled use of hazardous materials, chemicals, viruses and various
radioactive compounds. The Company is subject to federal, state and local laws
and regulations governing the use, manufacture, storage, handling and disposal
of such materials and certain waste products. Although the Company believes that
its safety procedures for handling and disposing of such materials comply with
the standards prescribed by such laws and regulations, the risk of accidental
contamination or injury from these materials cannot be completely eliminated. In
the event of such an accident, the Company could be held liable for any damages
that result and any such liability could exceed the resources of the Company.
The Company may be required to incur significant costs to comply with
environmental laws and regulations in the future. The Company's operations,
business or assets may be materially or adversely affected by current or future
environmental laws or regulations.




                                       16.
<PAGE>   19
REIMBURSEMENT

         In both domestic and foreign markets, sales of the Company's potential
products will depend in part upon coverage and reimbursement from third-party
payors, including health care organizations, including government agencies,
private health care insurers and other health care payors such as health
maintenance organizations, self-insured employee plans and the Blue Cross/Blue
Shield plans. There is considerable pressure to reduce the cost of drug
products. In particular, reimbursement from government agencies and insurers and
large health organizations may become more restricted in the future. The
Company's potential products represent a new mode of therapy, and, while the
cost-benefit ratio of the products may be favorable, the Company expects that
the costs associated with its products will be substantial. There can be no
assurance that the Company's proposed products, if successfully developed, will
be considered cost-effective by third party payors, that insurance coverage will
be available or, if available, that such payors' reimbursement policies will not
adversely affect the Company's ability to sell its products on a profitable
basis. In addition, there can be no assurance that insurance coverage will be
provided by such payors at all or without substantial delay, or, if such
coverage is provided, that the approved reimbursement will provide sufficient
funds to enable the Company to become profitable.

UNCERTAINTY OF PHARMACEUTICAL PRICING AND RELATED MATTERS

         The future revenues and profitability of and availability of capital
for biotechnology companies may be affected by the continuing efforts of
governmental and third party payors to contain or reduce the costs of health
care through various means. For example, in certain foreign markets pricing or
profitability of prescription pharmaceuticals is subject to government control.
In the United States, there have been, and the Company expects that there will
continue to be, a number of federal and state proposals to implement similar
government control. While the Company cannot predict whether any such
legislative or regulatory proposals will be adopted, the announcement or
adoption of such proposals could have a material adverse effect on the Company's
prospects.




                                       17.
<PAGE>   20
ITEM 2.           PROPERTIES

         The Company operates a laboratory facility in Alameda, California. This
facility houses the research and development staff and laboratories of the
Company. The Company has occupied this facility since March 1987 and believes
that it is well maintained and generally adequate for the Company's present
needs and intended uses. The facility is located in a building of approximately
40,000 square feet at 850 Marina Village Parkway, Alameda, California 94501. The
facility is leased through February 2007, at an approximate annual rent of
$633,000. In addition, on July 1, 1994 the Company leased approximately 16,000
square feet of office space for the corporate headquarters and administrative
staff at 950 Marina Village Parkway and on March 1, 1994 leased 26,000 square
feet of shell space at 2060 Challenger Drive, Alameda for a prospective
manufacturing site which has been subleased for the balance of the lease. The
approximate annual rents are $237,000 and $425,000, respectively, through
February 2004. The Company has a one-time option to terminate these leases after
five years. On January 25, 1996 the Company leased approximately 13,000 square
feet for an animal facility at 2061 Challenger Drive, Alameda through February
2007 at an approximate annual rent of $197,000. Office space at 1301 Marina
Village Parkway, consisting of 13,000 square feet, leased at an approximate
annual rent of $211,000 until September 1993 and $277,000 per year thereafter
through November 1997 has been subleased for the remainder of the lease.

ITEM 3.           LEGAL PROCEEDINGS

         (a) No material legal proceedings to which Somatix was a party or of
which any of its property was the subject were pending during fiscal 1996.

         (b) No material legal proceedings were terminated in the fourth quarter
of fiscal 1996.

ITEM 4.           SUBMISSION OF MATTERS TO A VOTE OF SECURITY-HOLDERS

         No matters were submitted to a vote of the Company's stockholders
during the last quarter of the fiscal year ended June 30, 1996.




                                       18.
<PAGE>   21
                                     PART II

ITEM 5.           MARKET FOR REGISTRANTS COMMON EQUITY AND RELATED STOCKHOLDER
                  MATTERS

         Shares of the Company's common stock commenced trading in the
over-the-counter market on the Nasdaq National Market on June 5, 1986, under the
symbol "HANA". On March 15, 1991, as a result of the Merger of Hana and Somatix
and the subsequent name change to Somatix Therapy Corporation, the trading
symbol was changed to "SOMA". As of June 30, 1996, there were approximately 961
holders of record of the Company's common stock.

         The Company has never paid cash dividends on its common stock and does
not anticipate paying cash dividends on its common stock in the foreseeable
future. See Note 3 to Financial Statements.

         The following table sets forth, for fiscal periods indicated, the range
of high and low closing sale prices available for the fiscal years 1996 and
1995.

<TABLE>
<CAPTION>
         1996                              High                            Low
         ----                              ----                            ---
<S>                                       <C>                             <C>
         Fourth Quarter                   $9 3/4                          $6
         Third Quarter                     7 1/4                           5 1/8
         Second Quarter                    6 1/2                           3 3/4
         First Quarter                     7 5/8                           3 7/8

<CAPTION>
         1995                              High                            Low
         ----                              ----                            ---
<S>                                       <C>                             <C>
         Fourth Quarter                   $5 1/16                         $3
         Third Quarter                     5 1/4                           2 7/8
         Second Quarter                    5 1/2                           2 7/8
         First Quarter                     6 5/8                           4 1/8
</TABLE>




                                       19.
<PAGE>   22
ITEM 6.           SELECTED FINANCIAL DATA

Consolidated Statements of Operations Data:

<TABLE>
<CAPTION>
                                                               Fiscal Year Ended June 30,
                                                               --------------------------
                                          1996            1995            1994            1993            1992
                                          ----            ----            ----            ----            ----
                                                          (in thousands except per share data)                     
<S>                                     <C>             <C>             <C>             <C>             <C>     
Revenues:
   Licensing agreement ..............   $     --        $     --        $  2,000        $     --        $     --
   Research agreements ..............         --             250             900              --              --
   Contract
      manufacturing .................         --              --              --              --              69
                                        --------        --------        --------        --------        --------
      Total revenues ................         --             250           2,900              --              69

Costs and Expenses:
   Cost of revenues .................         --              --              --              --           1,035
   Research and
      development ...................     17,509          18,395          13,186          12,732           7,444
   General and
      administrative ................      4,035           4,699           3,895           3,903           2,568
   Restructuring costs ..............         --           2,752              --              --              --
   In-process
      technology ....................         --          13,679              --              --          33,038
                                        --------        --------        --------        --------        --------

      Total costs and
        expenses ....................     21,544          39,525          17,081          16,635          44,085
                                        --------        --------        --------        --------        --------

Operating loss ......................    (21,544)        (39,275)        (14,181)        (16,635)        (44,016)
Other income, net ...................        856             222             474             964             793
                                        --------        --------        --------        --------        --------
Net loss ............................   $(20,688)       $(39,053)       $(13,707)       $(15,671)       $(43,223)
                                        ========        ========        ========        ========        ========

Net loss per share ..................   $   (.90)       $  (2.34)       $  (0.95)       $  (1.19)       $  (4.43)
                                        ========        ========        ========        ========        ========

Shares used in calculation of net
   loss per share ...................     22,971          16,661          14,418          13,191           9,752

Consolidated Balance Sheet Data:

Total assets ........................   $ 19,370        $ 19,128        $ 25,747        $ 23,524        $ 38,755
Capital lease obligations,
   noncurrent portion ...............      1,217           1,692           1,627             176             330
Stockholders' equity ................     12,203          10,489          21,846          21,552          36,510
</TABLE>


ITEM 7.           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                  AND RESULTS OF OPERATIONS

         Overview In February 1995, the Company completed the acquisition of
Merlin Pharmaceutical Corporation ("Merlin") a privately held gene therapy
company, pursuant to a stock transaction whereby a subsidiary of the


                                       20.
<PAGE>   23
Company was merged into Merlin. As a result of the Merlin acquisition, the
Company wrote-off to operations an amount equal to $13.7 million in fiscal year
1995. With the exception of fiscal year 1990, when the Company sold its cell
biology and diagnostic product line, the Company has been unprofitable since its
inception and expects to continue to incur operating losses in future periods
due to continued requirements for product development, clinical trials,
regulatory activities and other areas. As of June 30, 1996, the Company had an
accumulated deficit of $170.2 million.

         Results of Operations There were no revenues for the fiscal year ending
June 30, 1996 compared to $250,000 in fiscal year 1995. Revenues in fiscal year
1994 were $2,900,000. Revenue in fiscal year 1995 was derived from a research
agreement with Baxter Healthcare Corporation. In fiscal year 1994, revenues were
derived from research and licensing agreements with Baxter Healthcare
Corporation and a private group of investors.

         On June 29, 1995, the Company completed a restructuring and cost
savings program separating its research and development infrastructure into two
groups. The development group will focus on clinical trials and product
development and the research group will focus on gene transfer technologies for
various medical applications. As a result of the restructuring, the Company
recorded in fiscal year 1995 a restructuring charge of $2,752,000, consisting
principally of employee severance pay, the accrual of future rent obligations
including the write-off of leasehold improvements, and the write-down of certain
assets.

         Research and development expenses decreased by $886,000 in fiscal year
1996 and increased by $5,209,000 in fiscal year 1995. The decrease in research
and development expenses in fiscal year 1996 was primarily due to restructuring
and cost saving programs. The increase in research and development expenses in
fiscal year 1995 was primarily due to increased staffing, recruitment costs,
patent legal services, technology license fees, supplies, and research contracts
to meet the requirements of increased preclinical and clinical activities in
progress. The Company expects research and development expenses to increase in
future periods as the Company's preclinical and clinical activities progress.

         General and administrative expenditures decreased $664,000 in fiscal
year 1996 and increased $804,000 in fiscal year 1995. The increase in fiscal
year 1995 was primarily due to the write-off of $741,000 of future rent expenses
and leasehold improvements associated with the former corporate headquarters
which the Company is currently marketing for sublease. The Company expects
general and administrative expenses to increase in future periods due to
expanded research and development efforts.

         Other income consists principally of interest income earned on the
Company's cash balances. Changes in other income are due to fluctuations in cash
balances available for investment and returns on cash invested in recent
periods.

         Liquidity and Capital Resources On June 30, 1996, the Company had cash,
cash equivalents, and marketable securities of $15,036,000 compared with
$14,576,000 on June 30, 1995. Subsequent to June 30, 1996, the Company received
$5 million in cash from a private placement of convertible preferred stock (see
Note 9 to the Consolidated Financial Statements). Operating expenses have
exceeded revenues every fiscal year, except 1990, since the Company's inception.
For the year ending June 30, 1996, capital expenditures were $1,207,000. The
Company expects its cash requirements and net losses to increase significantly
in future periods due to higher research and development costs, the cost of
Phase III clinical trials due to start December 31, 1996 and other expenses. The
Company has no material capital commitments.

         The Company anticipates that its existing cash will be sufficient to
meet its cash requirements for at least the next 12 months. The Company has
financed its operations since inception principally through the sale of equity
securities, contract research revenues, license fees and interest income. The
Company's future capital requirements will depend on many factors, including the
progress of the Company's research and development, the scope and results of
preclinical studies and clinical trials, the cost of obtaining regulatory
approvals, the rate of technological


                                       21.
<PAGE>   24
advances, determinations as to the commercial potential of the Company's
products under development, the status of competitive products and the
establishment of manufacturing capacity. The Company anticipates that it will be
required to raise substantial additional funds, including funds raised through
collaborative relationships and public or private financings. Because of the
Company's significant operating and capital requirements, it may be required to
seek additional financings. It may also seek to access the public equity markets
whenever conditions are favorable, even if it does not have an immediate need
for additional capital at that time. No assurance can be given that additional
financing will be available on acceptable terms, or at all. If adequate funds
are not available, the Company will be required to curtail significantly its
research and development programs or may be required to discontinue its programs
in their entirety and liquidate its assets.

ITEM 8.           CONSOLIDATED FINANCIAL STATEMENTS


                          INDEX TO FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
         Financial Statements:                                              Page
         ---------------------                                              ----
<S>                                                                        <C>  
        Report of Independent Auditors................................        23
        Consolidated Balance Sheets at
          June 30, 1996 and 1995......................................        24
        Consolidated Statements of Operations for Years Ended
          June 30, 1996, 1995, and 1994 ..............................        25
        Consolidated Statements of Stockholders' Equity for
          Years Ended June 30, 1996, 1995, and 1994...................     26-27
        Consolidated Statements of Cash Flows for Years Ended
          June 30, 1996, 1995, and 1994...............................        28
        Notes to Consolidated Financial Statements....................     29-36
</TABLE>

        All financial statement schedules of the registrant for the years ended
June 30, 1996, 1995, and 1994 have been omitted since the information is not
required or is not so material as to require submission of the schedule, or
because the information required is included in the consolidated financial
statements or the notes thereto.




                                       22.
<PAGE>   25
                         REPORT OF INDEPENDENT AUDITORS

The Board of Directors and Stockholders
Somatix Therapy Corporation

         We have audited the accompanying consolidated balance sheets of Somatix
Therapy Corporation as of June 30, 1996 and 1995, and the related consolidated
statements of operations, stockholders' equity, and cash flows for each of the
three years in the period ended June 30, 1996. These financial statements are
the responsibility of the Company's management. Our responsibility is to express
an opinion on these financial statements based on our audits.

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

         In our opinion, the financial statements referred to above present
fairly, in all material respects, the consolidated financial position of Somatix
Therapy Corporation at June 30, 1996 and 1995, and the consolidated results of
its operations and its cash flows for each of the three years in the period
ended June 30, 1996, in conformity with generally accepted accounting
principles.



                                                               ERNST & YOUNG LLP

Walnut Creek, California
July 25, 1996
except for Note 9, as to which the date is
September 25, 1996




                                       23.
<PAGE>   26
                           SOMATIX THERAPY CORPORATION
                           CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
                                                 ASSETS
                                                                                  June 30                 
                                                                                  -------              
                                                                         1996                 1995
                                                                         ----                 ----
<S>                                                                 <C>                  <C>          
Current assets:
   Cash and cash equivalents                                        $   6,703,000        $  14,326,000
   Marketable securities                                                7,738,000              250,000
   Other current assets                                                   889,000              726,000
                                                                    -------------        -------------
      Total current assets                                             15,330,000           15,302,000
Marketable securities                                                     595,000                   --
Restricted cash                                                           650,000              300,000
Equipment and improvements, at cost:
   Laboratory and production equipment                                  4,136,000            3,942,000
   Equipment under capital leases                                       3,435,000            3,078,000
   Furniture and office equipment                                       1,266,000            1,115,000
   Leasehold improvements                                               4,286,000            3,781,000
                                                                    -------------        -------------
      Total equipment and improvements                                 13,123,000           11,916,000
   Less accumulated depreciation and amortization                      10,459,000            8,523,000
                                                                    -------------        -------------
      Net equipment and improvements                                    2,664,000            3,393,000
Other assets                                                              131,000              133,000
                                                                    -------------        -------------

         Total assets                                               $  19,370,000        $  19,128,000
                                                                    =============        =============


                                 LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:
   Accounts payable and accrued liabilities                         $   2,237,000        $   2,642,000
   Accrued compensation and related expenses                            1,169,000              992,000
   Capital lease obligations, current portion                             861,000              718,000
   Accrued restructuring costs, current portion                           414,000              859,000
   Other current liabilities                                              186,000              186,000
                                                                    -------------        -------------
      Total current liabilities                                         4,867,000            5,397,000

Capital lease obligations, net of current portion                       1,217,000            1,692,000
Accrued restructuring costs, net of current portion                       834,000            1,288,000
Other liabilities                                                         249,000              262,000

Commitments and contingencies

Stockholders' equity:
   Series A preferred stock, par value $0.01 per
      share; liquidation preferenceof $5,995,275 in 1996,
      $6,350,000 in 1995; authorized 1,000,000 shares, issued
      and outstanding 239,811 shares in 1996 and
      254,000 in 1995                                                       2,000                3,000
   Common stock, par value $0.01 per share;
      40,000,000 shares, issued and outstanding
      24,369,403 shares in 1996 and 20,991,996
      shares in 1995                                                      244,000              210,000
   Additional paid-in capital                                         182,118,000          159,749,000
   Accumulated deficit                                               (170,161,000)        (149,473,000)
                                                                    -------------        -------------
Total stockholders' equity                                             12,203,000           10,489,000
                                                                    -------------        -------------

         Total liabilities and  stockholders' equity                $  19,370,000        $  19,128,000
                                                                    =============        =============
</TABLE>

                             See accompanying notes.



                                       24.
<PAGE>   27
                           SOMATIX THERAPY CORPORATION
                      CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                                  Years Ended June 30                   
                                                                  -------------------                   
                                                     1996                1995                1994
                                                     ----                ----                ----
<S>                                              <C>                 <C>                 <C>         
Revenues:
         Licensing agreement                     $         --        $         --        $  2,000,000
         Research agreements                               --             250,000             900,000
                                                 ------------        ------------        ------------
                  Total revenues                           --             250,000           2,900,000
                                                 ------------        ------------        ------------

Costs and Expenses:

         Research and  development                 17,509,000          18,395,000          13,186,000
         General and administrative                 4,035,000           4,699,000           3,895,000
         In-process technology                             --          13,679,000                  --
         Restructuring costs                               --           2,752,000                  --
                                                 ------------        ------------        ------------

                  Total costs and expenses         21,544,000          39,525,000          17,081,000
                                                 ------------        ------------        ------------

Operating loss                                    (21,544,000)        (39,275,000)        (14,181,000)
Other income, net                                     856,000             222,000             474,000
         Net loss                                $(20,688,000)       $(39,053,000)       $(13,707,000)
                                                 ============        ============        ============


Net loss per share                               $      (0.90)       $      (2.34)       $      (0.95)
                                                 ============        ============        ============

Shares used in calculation of net
  loss per share                                   22,971,053          16,660,528          14,417,679
                                                 ============        ============        ============
</TABLE>


                             See accompanying notes.




                                       25.
<PAGE>   28
                           SOMATIX THERAPY CORPORATION
                 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

                    Years ended June 30, 1996, 1995 and 1994

<TABLE>
<CAPTION>
                                                                                                                   
                                                            Preferred Stock                   Common Stock         
                                                         Shares         Amount           Shares          Amount    
                                                         ------         ------           ------          ------    

<S>                                                        <C>              <C>         <C>           <C>          
Balances, June 30, 1993                                     --                --        13,266,606    $     133,000

Issuance of shares of common stock
         under stock option and purchase
         plans                                              --                --            13,521               --
Private investment in public equity
         financing at $5.85 per share, net
         of issuance costs                                  --                --         2,005,483           20,000
Issuance of common stock to investors
         at $6.88 per share, net of issuance
         costs                                              --                --           232,558            2,000
Issuance of common stock to investors
         at $6.50 per share, net of issuance
         costs                                              --                --           230,769            2,000
Net loss                                                    --                --                --               --
                                                       -------             -----        ----------          -------

Balances, June 30, 1994                                     --                --     $  15,748,937    $     157,000

Issuance of shares of common stock
         under stock option and purchase
         plans                                              --                --           215,782            2,000
Issuance of common stock to and
         assumptions of options and
         warrants upon the acquisition
         of Merlin Pharmaceutical Corporation               --                --         2,257,385           23,000
Private placement of common stock
         at $3.68 per share,
         net of issuance costs                              --                --         2,769,892           28,000
Private placement of preferred stock
         at $25.00 per share,
         net of issuance costs                         254,000     $       3,000                --               --
Net loss                                                    --                --                --               --
                                                       -------             -----        ----------          -------

Balance, June 30, 1995                                 254,000             3,000        20,991,996          210,000



Issuance of shares of common stock under
         stock option and purchase plans                    --                --           323,666            3,000
Paid in kind dividends for preferred stock              16,354                --                --               --
</TABLE>



<TABLE>
<CAPTION>
                                                     Additional                            Total
                                                       Paid-in         Accumulated     Stockholders'
                                                       Capital           Deficit           Equity
                                                       -------           -------           ------

<S>                                                <C>               <C>               <C>          
Balances, June 30, 1993                             $ 118,132,000     $ (96,713,000)    $  21,552,000

Issuance of shares of common stock
         under stock option and purchase
         plans                                             69,000                --            69,000
Private investment in public equity
         financing at $5.85 per share, net
         of issuance costs                             10,842,000                --        10,862,000
Issuance of common stock to investors
         at $6.88 per share, net of issuance
         costs                                          1,582,000                --         1,584,000
Issuance of common stock to investors
         at $6.50 per share, net of issuance
         costs                                          1,484,000                --         1,486,000
Net loss                                                       --       (13,707,000)      (13,707,000)
                                                      -----------      ------------        ----------

Balances, June 30, 1994                             $ 132,109,000     $(110,420,000)    $  21,846,000

Issuance of shares of common stock
         under stock option and purchase
         plans                                             30,000                --            32,000
Issuance of common stock to and
         assumptions of options and
         warrants upon the acquisition
         of Merlin Pharmaceutical Corporation          12,574,000                --        12,597,000
Private placement of common stock
         at $3.68 per share,
         net of issuance costs                          8,689,000                --         8,717,000
Private placement of preferred stock
         at $25.00 per share,
         net of issuance costs                          6,347,000                --         6,350,000
Net loss                                                       --       (39,053,000)      (39,053,000)
                                                      -----------      ------------        ----------                              

Balance, June 30, 1995                                159,749,000      (149,473,000)       10,489,000
                                          
                                          
                                          
Issuance of shares of common stock under  
         stock option and purchase plans                  857,000                --           860,000
Paid in kind dividends for preferred stock                     --                --                --
</TABLE>

                             See accompanying notes.

                                       26.

<PAGE>   29

<TABLE>
<CAPTION>
                                                                                                                   
                                                            Preferred Stock                   Common Stock         
                                                         Shares         Amount           Shares          Amount    
                                                         ------         ------           ------          ------    


<S>                                                    <C>                <C>              <C>                <C>   
Conversion of preferred stock into common
         stock                                         (30,543)           (1,000)          190,893            2,000 
Exercise of warrants to purchase common stock               --                --           559,627            6,000 
Purchase of common stock by Bristol-Myers
         Squibb, net of issuance costs                      --                --         2,303,221           23,000 
Net loss                                                    --                --                --               -- 
                                                       -------             -----        ----------          -------                

Balances, June 30, 1996                                239,811             2,000        24,369,403          244,000 
                                                       =======             =====        ==========          ======= 
</TABLE>




<TABLE>
<CAPTION>
                                                     Additional                            Total
                                                       Paid-in         Accumulated     Stockholders'
                                                       Capital           Deficit           Equity
                                                       -------           -------           ------


<S>                                                     <C>           <C>              <C>                             
Conversion of preferred stock into common               (1,000)               --                -- 
         stock                                       1,572,000                --         1,578,000  
Exercise of warrants to purchase common stock                                                      
Purchase of common stock by Bristol-Myers           19,941,000                --        19,964,000 
         Squibb, net of issuance costs                      --       (20,688,000)      (20,688,000) 
Net loss                                           -----------      ------------        ----------

Balances, June 30, 1996                            182,118,000      (170,161,000)       12,203,000 
                                                   ===========      ============        ========== 

</TABLE>

                             See accompanying notes

                                       27.


<PAGE>   30
                           SOMATIX THERAPY CORPORATION
                      CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                                                 Years Ended June 30,
                                                                --------------------------------------------------
                                                                       1996               1995             1994
                                                                ----------------   ---------------  --------------                 
<S>                                                             <C>                <C>              <C>            
Cash flows from operating activities:
   Net loss...................................................  $   (20,688,000)   $  (39,053,000)  $  (13,707,000)
Adjustments to reconcile net loss to net cash used in operating
   activities
   Depreciation and amortization..............................         1,936,000         1,965,000        1,466,000
   Write-off of acquired in-process technology................                --        13,679,000                -
   Write-off of leasehold improvements........................                --           324,000                -
   Decrease (increase) in other current assets................         (163,000)           198,000        (140,000)
   Decrease (increase) in other assets........................             2,000            55,000         (54,000)
   Increase (decrease) in accounts payable and
     accrued liabilities......................................         (405,000)           119,000          244,000
   Increase (decrease) in accrued compensation and
     related expenses.........................................           177,000           681,000         (45,000)
   Increase (decrease) in other current liabilities...........                --           171,000         (17,000)
   Increase (decrease) in accrued restructuring costs.........         (899,000)         2,147,000                -
   Increase (decrease) in other liabilities...................          (13,000)           249,000         (48,000)
                                                                ----------------   ---------------  --------------
   Net cash used in operating activities......................      (20,053,000)      (19,465,000)     (12,301,000)

Cash flows from investing activities:
   Maturities of marketable securities and changes
     in restricted cash.......................................        11,490,000        25,975,000        9,625,000
   Purchases of marketable securities.........................      (19,923,000)       (6,830,000)     (16,198,000)
   Purchases of equipment and improvements....................       (1,207,000)       (1,496,000)      (1,359,000)
                                                                ----------------   ---------------  --------------
   Net cash (used in) provided by investing activities........       (9,640,000)        17,649,000      (7,932,000)

Cash flows from financing activities:
   Borrowings under sale/leaseback agreements.................           519,000           971,000        2,000,000
   Principal payments under capital lease obligations.........         (851,000)         (705,000)        (205,000)
   Net proceeds from issuance of capital stock................        22,402,000        15,099,000       14,001,000
                                                                ----------------   ---------------  ---------------
   Net cash provided by financing  activities.................        22,070,000        15,365,000       15,796,000

   Net (decrease) increase in cash............................       (7,623,000)        13,549,000      (4,437,000)
Cash and cash equivalents, beginning of period................        14,326,000           777,000        5,214,000
                                                                ----------------   ---------------  ---------------
Cash and cash equivalents, end of period......................  $      6,703,000   $    14,326,000  $       777,000
                                                                ================   ===============  ===============
Cash paid for interest........................................  $        309,000   $       300,000  $       132,000
Supplemental disclosures of non-cash investing
and financing activities:
   Conversion of preferred stock into common stock............  $        743,000   $            --  $            --
</TABLE>

                             See accompanying notes.

                                       28.



<PAGE>   31
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 1996

NOTE 1.           The Company and its Significant Accounting Policies

         Company and Basis of Presentation. Somatix Therapy Corporation
("Somatix" or the "Company") is a leader in the emerging field of gene therapy.
Somatix is applying its gene therapy expertise to research and develop therapies
to treat a variety of diseases. The Company is the result of three transactions.
The first transaction, which was consummated in March 1991, combined Somatix
Corporation and Hana Biologics, Inc. The second transaction occurred in January
1992, when the Company acquired GeneSys Therapeutics Corporation. The third
transaction occurred in February 1995, when the Company acquired Merlin
Pharmaceutical Corporation (see Note 2). The consolidated financial statements
include the accounts of the Company and its wholly-owned subsidiaries. All
intercompany accounts and transactions have been eliminated.

         The Company anticipates that it will be required to raise substantial
additional funds, including funds raised through collaborative relationships and
public or private financings. Because of the Company's significant operating and
capital requirements, it may be required to seek additional financings. It may
also seek to access the public equity markets whenever conditions are favorable,
even if it does not have an immediate need for additional capital at that time.
No assurance can be given that additional financing will be available on
acceptable terms, or at all. If adequate funds are not available, the Company
will be required to curtail significantly its research and development programs
or may be required to discontinue its programs in their entirety and liquidate
its assets.

         Cash and Cash Equivalents. At June 30, 1996, cash equivalents consist
of government securities totaling $4,600,000 and short-term corporate debt
securities totaling $1,500,000 with maturities at the date of acquisition of
three months or less. Cash equivalents are stated at cost which approximates
fair value.

         Revenue Recognition. License revenue is recorded as revenue when all
contractual obligations have been met. Research revenue is recorded when earned
as defined under the term of the respective agreements. Payments received which
are related to future performance are deferred and recognized as income when
earned.

         Use of Estimates. The preparation of the financial statements in
conformity with generally accepted accounting principles requires management to
make estimates and assumptions that affect the amounts reported in the financial
statements and accompanying notes. Actual results could differ from those
estimates.

         Marketable Securities. At June 30, 1996, current marketable securities
consist of government securities totaling $6,698,000 and corporate debt
securities totaling $1,040,000 having maturities between three months and one
year. Non-current marketable securities consist of government securities having
maturities greater than one year. Marketable securities are stated at cost which
approximates fair value and the unrealized gains and losses at June 30, 1996 are
not significant.

         In May 1993, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards No. 115, "Accounting for Certain
Investments in Debt and Equity Securities" ("SFAS 115"). The Company adopted the
provisions of the new standard for investments held as of or acquired after July
1, 1994. In accordance with SFAS 115, prior period financial statements have not
been restated to reflect the change in accounting principle. The Company has
classified its entire investment portfolio as held-to-maturity. There is no
impact of adopting SFAS 115 on results of operations or financial position
because the difference between cost and fair value was not significant.

                                       29.

<PAGE>   32
         In accordance with SFAS 115, debt securities are classified as
held-to-maturity when the Company has the positive intent and ability to hold
the securities to maturity. Held-to-maturity securities are stated at amortized
cost, adjusted for amortization of premiums and accretion of discounts to
maturity. Such amortization is included in investment income. Interest on
securities classified as held-to-maturity is included in investment income.

         It is the Company's policy to invest funds not required for current
operations in financial instruments with strong credit ratings. The Company has
not experienced significant losses to date on these investments.

         Equipment and Improvements. Depreciation of equipment and furniture is
provided over estimated useful lives of three to ten years using the
straight-line method. Assets under capital leases are amortized by the
straight-line method over their useful lives of three to five years. Leasehold
improvements are amortized over the remaining lives of the applicable leases.

         Retirement Plan. On January 1, 1993, the Company established a defined
contribution plan which covers all employees 21 years and older. The Company's
contributions to the plan are at the discretion of the Company's Board of
Directors. Amounts contributed to the plan for the years ended June 30, 1996,
1995, and 1994 were $74,000, $61,000 and $46,000, respectively.

         Stock-Based Compensation. The Company accounts for its stock option
plan in accordance with the provisions of the Accounting Principles Board's
Opinion No. 25 ("APB 25"), "Accounting for Stock Issued to Employees". In 1995,
the Financial Accounting Standards Board released the Statement of Financial
Accounting Standards No. 123 ("SFAS 123"), "Accounting for Stock-Based
Compensation". SFAS 123 provides an alternative method of accounting for
stock-based compensation to APB 25 and is effective for the fiscal years
beginning after December 15, 1995. The Company expects to continue to account
for its stock-based compensation in accordance with the provision of APB 25.
Accordingly, SFAS 123 is not expected to have any material impact on the
Company's financial position or results of operations. The Company will make the
proforma disclosures required by FAS 123 in fiscal year 1997.

         Income Taxes. The liability method is used in accounting for income
taxes. Under this method, deferred tax assets and liabilities are determined
based on differences between financial reporting and tax bases of assets and
liabilities and are measured using the enacted tax rates and laws that will be
in effect when the differences are expected to reverse.

         Per Share Information. Per share information is based on the weighted
average number of common shares outstanding during each period. Shares issuable
upon the exercise of stock options and warrants and the conversion of preferred
stock are not included since their inclusion would be anti-dilutive. In
addition, the paid in kind dividends on the preferred stock are excluded as
their impact would also be anti-dilutive.

NOTE 2.           Acquisition of Merlin Pharmaceutical Corporation

         On February 13, 1995, the Company completed its acquisition (the
"Acquisition") of Merlin Pharmaceutical Corporation ("Merlin"), a privately-held
gene therapy company. The Company issued 2,257,385 shares of common stock in
exchange for all of the outstanding capital stock of Merlin and assumed options
and warrants to purchase an aggregate of 743,371 shares of the Company's common
stock at exercise prices between $0.01 and $1.94 per share.

         The transaction was accounted for as a purchase and the consideration
issued by the Company was allocated to the tangible assets and intangible
in-process technology acquired based on their estimated fair values on the
Acquisition date. The aggregate purchase price of $13,702,000 consisted of (in
thousands):

                                       30.
<PAGE>   33
         Fair value of common stock issued                      $ 9,144
         Fair value of warrants and options assumed               3,110
         Acquisition costs                                          900
         Liabilities assumed                                        548
                                                                -------
                  Total purchase price                          $13,702
                                                                =======

         The aggregate purchase price exceeded the fair value of Merlin's
tangible assets by $13,679,000. This amount was allocated to acquired in-process
technology and charged to operations in fiscal year 1995. The allocation of the
aggregate purchase price was as follows (in thousands):

         Current assets                                         $    23
         In-process technology                                   13,679
                                                                 ------
                                                                $13,702
                                                                =======

NOTE 3.           Stockholders' Equity

         T-body Technology Research and Development Agreement

         On April 29, 1994, the Company signed collaborative research and equity
purchase agreements with Baxter Healthcare Corporation ("Baxter") to jointly
research, develop and commercialize T-body technology for the treatment of
cancer. Under the terms of the agreements, the Company and Baxter will be
responsible for their own research expenditures. In fiscal year 1994, the
Company received a non-refundable technology license fee of $400,000, as well as
$1,600,000 for the sale of 232,558 shares of common stock to Baxter at
$6.88/share. Baxter agreed to purchase $1,000,000 in common stock at the
then-market price along with making a milestone payment of $1,000,000 after the
first patient has been treated in a phase I clinical trial. Before initiating
phase III clinical trials, the companies will have the opportunity to form a
joint venture to complete clinical development and commercialization of this
technology. The funding supported by each party at that time will determine the
ownership of the joint venture; provided, however, that each party can
supplement its funding contributions so that the total amount funded by each
party equals at least 30 percent and up to 50 percent of the total expenditures
under the program.

         Colorectal Cancer Treatment Research and Development Agreement

         On May 12, 1994, the Company signed an agreement with a private group
of investors (the "Investors") to develop the Company's GVAX(TM) cancer vaccine
technology for the treatment of colorectal cancer. Under the terms of the
agreement, the Company received $500,000 to fund preclinical research and
$1,500,000 for the sale of 230,769 shares of common stock to the Investors, at
$6.50 per share. These initial research funds have been used to finance
staffing, overhead, and supply costs associated with the Company's preclinical
development of the GVAX(TM) cancer vaccine for colorectal cancer. Upon filing an
IND, the Investors have agreed to provide an additional $2,500,000 consisting of
research funding of $1,250,000 and $1,250,000 from the sale of additional shares
of common stock at the then-current market price. In exchange for funding the
program, the Investors will receive royalty payments of 2% of net sales of the
colorectal product, although such payments are to be terminated when the
Investors have received aggregate payments of $1,750,000, therefore recovering
research funding under the agreement.

         Bristol-Myers Squibb Equity Investment

         On August 14, 1995, the Company entered into an agreement with
Bristol-Myers Squibb to evaluate possible areas for collaboration in gene
therapy and the Company received an initial equity investment of $10 million for
1,195,572 shares of common stock or $8.36 per share. Upon obtaining protocol
clearance from the Food and

                                       31.
<PAGE>   34
Drug Administration (FDA) for a Phase III clinical trial for GVAX(TM) cancer
vaccine in April 1996, the Company received a second equity investment of $10
million for 1,107,649 shares of common stock or $9.03 per share. In addition,
Bristol-Myers Squibb received one board of directors seat. The agreement also
allows Bristol-Myers Squibb a five year right of first offer with regard to
collaborations with the Company in any of its internally initiated oncology
programs.

         Other Benefit or Bonus Plans

         1992 Stock Option Plan. Under the 1992 Stock Option Plan, 3,200,000
shares have been authorized for the grant to employees of either non-qualified
or incentive stock options and the grant to consultants of non-qualified
options. Incentive stock options are to be granted with exercise prices not less
than the fair market value of common stock at the date of grant and
non-qualified options at not less than 85% of fair market value. Options are
exercisable as determined by the Board of Directors, and the Company may be
granted the right to repurchase shares acquired in diminishing amounts over
varying periods of time (none through June 30, 1996). The following table
summarizes the activity under the Plan for the years ended June 30, 1996, 1995,
and 1994:

<TABLE>
<CAPTION>

                                         Options               Exercise
For the years ended June 30,           Outstanding               Price
- ----------------------------           -----------             --------
<S>                                     <C>                 <C>   
1993
- ----
Balance                                 1,399,045           $ 2.44-$25.00

1994
- ----
Options granted                           483,538           $ 5.63-$ 6.88
Options canceled                          (56,737)          $ 3.75-$25.00
Options exercised                         (13,521)          $ 2.88-$ 7.00
                                          -------           -------------
Balance                                 1,812,325           $ 2.44-$25.00

1995
- ----
Options granted                           763,500           $ 3.00-$ 5.63
Options canceled                         (189,820)          $ 2.88-$25.00
Options exercised                          (3,200)          $ 2.88-$ 3.00
                                        ---------           -------------
Balance                                 2,382,805           $ 2.44-$25.00
                                        =========           =============

1996
- ----
Options granted                           423,000            $ 5.69-$6.94
Options canceled                         (165,581)          $ 3.00 -$8.50
Options exercised                        (263,444)          $ 3.00-$ 6.88
                                         --------           -------------
Balance                                 2,376,780           $ 2.44-$25.00
                                        =========           =============
</TABLE>

         Of the options outstanding at June 30, 1996, options to purchase
1,355,596 shares were exercisable at prices from $2.44 to $18.72; 101,561 would
be subject to repurchase rights if exercised, and 1,021,184 were unvested and
unexercisable.

         Other Option Plans. As a result of the mergers and acquisitions
described in Note 1 and 2, the Company adopted additional option plans. At June
30, 1996, options to purchase 479,436 shares were outstanding with an exercise
price ranging from $0.0116 to $14.04 per share. All shares are exercisable;
9,375 are subject to repurchase rights.

                                       32.
<PAGE>   35
         Stock Option Cancellation/Regrant

         On December 14, 1994, the Compensation Committee of the Board of
Directors approved a stock option cancellation/regrant program for employees
with stock option exercise prices in excess of the then current fair value of
the Company's common stock, or $3.00 per share. The holders of such options were
offered new options with an exercise price of $3.00 per share in exchange for
the cancellation of the old options.

         Private Placement of Common and Preferred Stock

         On June 29, 1995 the Company closed a private placement of units of
common and preferred stock in the aggregate amount of $16,543,000, before
issuance costs of $1,476,000. The financing consisted of $10,100,000 in common
stock units of the Company ("Common Stock Units"; 2,769,892 shares) and
$6,400,000 in preferred stock units of the Company ("Preferred Stock Units";
254,000 shares).

         The Common Stock Units were priced at $3.68, and consisted of one share
of the Company's common stock ("Common Stock") and a warrant to purchase 0.56 of
a share of Common Stock. The Preferred Stock Units were priced at $25.00, and
consisted of one share of the Company's convertible preferred stock (the
"Preferred Stock"), convertible to 6.25 shares of Common Stock at $4.00 per
share, and warrants for 3.5 shares of Common Stock. In both cases the warrants
have exercise prices of $4.00 per share and have three year terms.

         The Preferred Stock terms include a paid-in-kind dividend paid
quarterly until converted to common stock at the rate of 7% per year, a
liquidation preference of $25.00 per share, extraordinary voting rights in the
event the Company's net cash position, as defined, falls below $5,000,000, and a
conversion price reset provision. Under the reset provision, thirteen months
after closing, the conversion price may be reset to the lower of the current
conversion price or the twenty day average closing price of the Common Stock in
the thirteenth month. The conversion price after reset may not be less than
$2.00 per share. Purchasers of the Preferred Stock Units have agreed to certain
trading restrictions during this measurement period. The Preferred Stock will
automatically convert to Common Stock at any time after two and one-half years
after closing if the Common Stock trades at a 100% premium to the
then-applicable conversion price.

         Outstanding Warrants

         As of June 30, 1996 and 1995, the Company had outstanding warrants to
purchase 2,290,781 and 3,099,168 shares of common stock, respectively, at prices
ranging from $0.01 to $7.25 per share. The outstanding warrants resulted from
the private placement of preferred and common stock during fiscal year 1995 and
the sale/leaseback agreements entered into during fiscal year 1994 (see Note 6).
The warrants became exercisable in 1995 and expire at various dates through
1999. At June 30, 1996 and 1995, 2,290,781 and 3,099,168 shares of common stock
respectively, were reserved for that purpose.

         Shares Reserved

         At June 30, 1996 and 1995, common stock was reserved for the following
reasons:

                                                    1996              1995
                                                 ----------        -------
Exercise of stock warrants                       2,290,781         3,099,168
Conversion of preferred stock                    1,498,820         1,587,500
Stock option plans                               3,200,355         3,525,021
                                                 ---------         ---------
                                                 6,989,956         8,211,689
                                                 =========         =========

                                       33.



<PAGE>   36
NOTE 4.           Joint Research and Development Agreement

         On November 2, 1993, Baxter and the Company signed an agreement to
jointly research and develop a gene therapy approach for the treatment of
hemophilia. Under the terms of the agreement, the Company received a
non-refundable technology license fee of $2,000,000 in fiscal year 1994. The
agreement grants Baxter worldwide marketing rights to products developed.

         As a part of this relationship, Baxter and the Company will collaborate
in areas of research and manufacturing and Baxter will make certain milestone
payments to the Company. Baxter will conduct clinical trials and market the
product worldwide. The Company will receive royalties on product sales. The
Company has also agreed to provide Baxter with a right of first negotiations for
certain other approaches for the treatment of hemophilias A and B.

NOTE 5.           Income Taxes

         Significant components of the Company's deferred tax assets (in
thousands) are as follows at June 30, 1996 and 1995:

                                                    1996                 1995
                                                 ----------           -------

Net operating loss carryforward                 $ 37,000,000       $ 29,400,000
Research and development credit
     carryforward                                  4,600,000          4,600,000
Capitalized research and development               2,900,000          2,100,000
Restructuring costs                                  500,000            800,000
                                                ------------       ------------
Gross deferred tax assets                         45,000,000         36,900,000
Valuation allowance                              (45,000,000)       (36,900,000)
                                                ------------       ------------
Net deferred tax asset                          $          0       $          0
                                                ------------       ------------

         The valuation allowance increased $8,100,000 and $9,200,000 in the
fiscal years 1996 and 1995, respectively.

         At June 30, 1996 the Company has net operating loss carryforwards for
federal and state income tax purposes of approximately $103,000,000 and
$32,000,000, respectively, which expire in the years 1996 through 2010. The
Company has federal tax credit carryforwards of approximately $3,700,000 which
will expire in the years 1996 through 2010.

         Because of "change in ownership" provisions of the Tax Reform Act of
1986, a portion of the Company's net operating loss carryforwards and tax
credits will be subject to an annual limitation regarding their utilization
against taxable income in future periods.

NOTE 6.           Commitments

         The Company leases certain laboratory, production, and office equipment
under capital leases, and all office and laboratory space under operating
leases. The operating lease agreements generally require the Company to pay
operating costs including property taxes, insurance and maintenance.

                                       34.
<PAGE>   37
         Future minimum lease payments under capital and operating leases at
June 30, 1996 are as follows:

                                                     Capital         Operating
                                                     Leases            Leases
                                                     -------         ---------

1997                                                 $1,109,000       $1,678,000
1998                                                  1,037,000        1,517,000
1999                                                    271,000        1,214,000
2000                                                     86,000          780,000
2001                                                         --          803,000
Thereafter                                                   --        5,017,000
                                                    -----------     ------------
Total minimum lease payments                         $2,503,000      $11,009,000
                                                                     ===========
Less amount representing interest                       425,000
                                                     ----------
Present value of minimum lease payments               2,078,000
Less current portion                                    861,000
                                                     ----------
Long-term portion                                    $1,217,000
                                                     ==========

         At June 30, 1996, the Company has certificates of deposit totaling
$650,000 which secure obligations under certain operating leases.

         Rent expense was $1,033,000, $1,438,000, and $1,051,000 for fiscal
years 1996, 1995, and 1994, respectively. At June 30, 1996, the net book value
of equipment under capital leases is $1,307,000 ($1,683,000 in 1995). Certain
other facilities are sub-leased under a non-cancelable lease for terms
substantially identical to the original lease.

         In May 1994, the Company entered into a $2,000,000 sale/leaseback
transaction for equipment used in the Company's operations. The Company's
resulting gain of $358,000 has been recorded on the accompanying balance sheets
as an offset to equipment under capital leases and is being amortized over the
lease term. The lessor also received warrants, exercisable until May 24, 1999,
to purchase 25,000 shares of the Company's common stock at an exercise price of
$7.00 per share.

         In June 1994, the Company entered into a $2,000,000 lease line for
equipment used in the Company's operations and such line expires December 31,
1996. As of June 30, 1996, the Company had borrowed a total of $1,490,000 under
this line in the form of sale/leaseback transactions. The lessor also received
warrants that became exercisable in fiscal year 1995. Such warrants expire on
December 31, 1999, and grant the lessor the right to purchase 19,310 shares of
the Company's common stock at an exercise price equal to the lesser of $7.25 per
share or the closing sales price per share of the Company's common stock as
listed on the NASDAQ National Market on the date the warrants become
exercisable, but in no event less than $6.00 per share.

NOTE 7.           Other Income

         Other income is comprised of the following:

                                                  Year ended June 30
                                        ---------------------------------------
                                           1996           1995           1994
                                        ---------      ---------      ---------
Interest income                         $ 863,000      $ 525,000      $ 731,000
Interest expense                         (309,000)      (300,000)      (132,000)
Other income (expense), net               302,000         (3,000)      (125,000)
                                        ---------      ---------      ---------
                                        $ 856,000      $ 222,000      $ 474,000
                                        =========      =========      =========

                                       35.

<PAGE>   38
NOTE 8.           Restructuring Costs

         In June 1995, the Company initiated certain changes in the structure of
its research and development efforts. These changes included a selective
reduction in the Company's overall research, clinical and administrative work
force. Accordingly, the Company recorded restructuring costs of $2,752,000 in
the fourth quarter of fiscal year 1995, which included employee severance costs
for 20 employees, totaling $314,000, of which $176,000 was paid during 1995.
Restructuring costs also included the write-down of certain assets to net
realizable value and the accrual of future rent obligations on vacated buildings
and other such future costs related to the restructuring. As of June 30, 1996,
the remaining accrued costs amounted to $1,248,000 which relate to future rent
obligations.

NOTE 9.           Subsequent Events

          On September 25, 1996, the Company sold 33,333 shares of convertible
Series B-1 preferred stock ("Preferred Stock") in a private placement pursuant
to Regulation S under the Securities Act of 1933, as amended, for an aggregate
consideration of $5,000,000 in cash. In addition, the Company has the right to
sell up to $10,000,000 in additional shares of Preferred Stock during the three
(3) year period ending September 25, 1999. No more than $5,000,000 may be sold
during any given six month period. The Preferred Stock is not entitled to
dividends and is convertible into common stock at a premium over an average of
the market price of the Company's Common Stock on the earlier of (i) the
investor's option, (ii) immediately following any sixty (60) day trading period
after March 1997 in which the Company's common stock has traded above 130% of
the closing price of the common stock on September 24, 1996, or (iii) September
25, 1999. The Company also issued to the investor a warrant to purchase 650,000
shares of the Company's common stock at a price equal to 130% of the closing
price of the Company's common stock on September 24, 1996. Such warrant is
exercisable between March 1998 and September 2002.

ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
         AND FINANCIAL DISCLOSURE

         None.

                                       36.



<PAGE>   39
                                    PART III

ITEM 10.          DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

         The information required by this Item 10 with respect to the
identification of Directors is hereby incorporated by reference from the
information under the caption "Proposal One - Election of Directors" in the
Company's Proxy Statement for its Annual Meeting of Stockholders to be held on
November 21, 1996 (the "Proxy Statement").

         The information required by Section 16(a) is hereby incorporated by
reference from the information under the caption "Compliance with Section 16(a)
of the Securities Exchange Act of 1934" in the Proxy Statement.

EXECUTIVE OFFICERS OF THE COMPANY

         The following table sets forth certain information with respect to the
executive officers of the Company:

<TABLE>
<CAPTION>
    Name                                  Age                        Position
    ----                                  ---                        --------

<S>                                       <C>        <C>
David W. Carter                           56         Chairman, President and Chief Executive Officer

Edward O. Lanphier II                     40         Executive Vice President, Commercial Development; Chief
                                                     Financial Officer since August 15, 1996

Richard C. Mulligan, Ph.D.(1)             41         Executive Vice President, Research and Chief Scientific
                                                     Officer

Jan I. Drayer, M.D., Ph.D.                50         Executive Vice President, Gene Therapy Development


Mark N.K. Bagnall(2)                      39         Vice President, Finance and Chief Financial Officer
</TABLE>

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

(1)  Dr. Mulligan resigned from the Company effective as of November 30 1995.

(2)  Mr. Bagnall resigned from the Company effective as of August 15, 1996.

         Mr. Carter has been President and Chief Executive Officer of the
Company since September 1991, and has served as a director of the Company since
1988. In September 1994, Mr. Carter was appointed Chairman of the Board of
Directors of the Company. From 1986 until joining Somatix in 1991, he was
President and Chief Operating Officer of Northfield Laboratories, a company
developing an artificial blood product. Mr. Carter is a member of the Board of
Directors of Northfield Laboratories.

         Mr. Lanphier joined the Company in July 1992 as Executive Vice
President, Commercial Development. Since August 15, 1996, Mr. Lanphier has also
served as the Company's Chief Financial Officer. From December 1991 to July
1992, he was Senior Vice President of Business Development and Marketing at
Celtrix Pharmaceuticals, Inc., a pharmaceutical company. From 1988 to 1991 he
was President and Chief Executive Officer of BioGrowth, Inc., a pharmaceutical
company. Mr. Lanphier previously has held positions with Biotherapeutics, Inc.,
Synergen, Inc. and Eli Lilly & Company.

                                       37.



<PAGE>   40
         In November 1995, Dr. Richard Mulligan resigned his position as
Director and Executive Vice President, Research and Chief Scientific Officer to
accept a position as a Howard Hughes Professor at Harvard University. Dr.
Mulligan, a founder and a director of Somatix Corporation from its formation in
January 1988 to November 1995, is currently a consultant to Somatix and chairman
of the Scientific Advisory Board. He will remain active on the Company's
Scientific Advisory Board.

         Dr. Drayer joined Somatix in March 1995. From 1990 to March, 1995, he
served as Senior Vice President of Scientific Affairs at G.H. Besselaar, a
leading clinical research organization, where he worked closely with Somatix in
the areas of clinical development and regulatory affairs. Dr. Drayer was also
with Boeringer Ingelheim as Director of Clinical Research. He sits on the
editorial boards of several clinical development journals.

         Mr. Bagnall resigned as Vice President, Finance, and Chief Financial
Officer of Somatix in August 1996, a position he had held since July 1992. From
September 1990 to July 1992, Mr. Bagnall served as Treasurer and Secretary after
joining the Company as the Controller in May 1988. Mr. Bagnall remained
secretary of the Company until his resignation in 1996. Prior to joining the
Company, Mr. Bagnall held positions in high technology companies as well as with
Arthur Young and Company. Mr. Bagnall is a certified public accountant.

         Officers are appointed to serve, at the discretion of the board of
directors, until their successors are appointed. There are no family
relationships among any of the executive officers of the Company.

EMPLOYEES

         As of June 30, 1996, the Company employed 110 individuals full-time, of
whom 16 hold Ph.D. degrees, and 8 hold M.D. degrees. Of these employees, 41 were
engaged in research, 52 in gene therapy development, and 17 in finance and
administration. None of the Company's employees is represented by a labor union
or is the subject of a collective bargaining agreement. The Company has never
experienced a work stoppage and believes that it maintains good relations with
its employees.

ITEM 11.          EXECUTIVE COMPENSATION

         The information required by this item is hereby incorporated by
reference from the information under the captions "Proposal One - Election of
Directors", "Summary of Cash and Certain Other Compensation", "Stock Options"
and "Option Holdings" in the Proxy Statement.

ITEM 12.          SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The information required by this item is hereby incorporated by
reference from the information under the caption "Security Ownership of Certain
Beneficial Owners and Management" in the Proxy Statement.

ITEM 13.          CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         The information required by this Item is incorporated by reference from
the information under the caption "Certain Relationships and Related
Transactions" in the Proxy Statement.

                                       38.
<PAGE>   41
                                     PART IV

ITEM 14.  EXHIBITS, FINANCIAL STATEMENTS SCHEDULES AND REPORTS ON FORM 8-K

         (a)      1.       Financial Statements

         See Index to Financial Statements under Item 8.

         2.       Financial Statement Schedules

         All financial statement schedules of the registrant for the years ended
June 30, 1996, 1995, and 1994 have been omitted since the information is not
required or is not so material as to require submission of the schedule, or
because the information requested is included in the consolidated financial
statements or the notes thereto.

         (b)      Reports on Form 8-K

         None

         (c)      Exhibits

         The following documents are referenced or included in this report.

Exhibit
  No.
- -------

3.1 1        Amended and Restated Certificate of Incorporation effective
             May 16, 1986. Reference Exhibit 3.1.

3.2 1        Certificates of Determination. Reference Exhibit 3.2.

3.3 2        Bylaws. Reference Exhibit 3.3.

3.4 8        Certificate of Amendment of Certificate of Incorporation effective
             January 22, 1987. Reference Exhibit 3.2.

3.5 8        Certificate of Amendment of Restated Certificate of Incorporation
             effective March 15, 1991. Reference Exhibit 3.4.

3.6 8        Certificate of Amendment of Restated Certificate of Incorporation
             effective January 17, 1992. Reference Exhibit 3.5.

3.7 8        Certificate of Designation of Preferences of Preferred Shares
             effective December 12, 1988. Reference Exhibit 3.3

3.8 15       Certificate of Amendment of Restated Certificate of Incorporation
             effective December 16, 1993.

3.9 19       Amended and Restated Certificate of Incorporation effective
             November 29, 1994. Reference Exhibit 3.1.

3.10 22      Certificate of Designation of Preferences of Preferred Shares
             effective June 27, 1995. Reference Exhibit 3.3.

3.11         Certificate of Designation of Preferences of Series B-1 Preferred
             Stock effective September 23, 1996.

3.12 19      Bylaws, as amended and restated September 29, 1994.  Reference
             Exhibit 3.2.

3.13 23      Bylaws, as amended and restated September 14, 1995.  Reference
             Exhibit 3.3.

10.1 2       Lease Agreement dated June 16, 1986, between Hana Biologics, Inc.
             and Alameda Marina Village Associates. Reference Exhibit 10.37.

10.2 3       1988 Directors Stock Option Plan.  Reference Exhibit 10.67.

10.3 4       Trade Secrets Agreement dated September 13, 1989, between Hana
             Biologics, Inc. and Irvine Scientific Sales Company, Inc. Reference
             Exhibit 3.

10.4 4       License Agreement dated September 13, 1989, between Hana Biologics,
             Inc. and Irvine Scientific Sales Company, Inc. Reference Exhibit 4.

                                       39.
<PAGE>   42
10.5 4       Manufacturing and Supply Agreement dated September 13, 1989,
             between Hana Biologics, Inc. and Irvine Scientific Sales Company,
             Inc. Reference Exhibit 5.

10.6 5       Development Agreement dated May 1, 1990, between Hana Biologics,
             Inc. and The Polymer Technology Group, Incorporated. Reference
             Exhibit 10.68.

10.7 6       License Agreement dated February 1, 1988, between Somatix
             Corporation and the Massachusetts Institute of Technology.
             Reference Exhibit 10.1.

10.8 6       Somatix Corporation's 1988 Stock Option Plan, as amended, and forms
             of agreement currently used thereunder. Reference Exhibit 10.2.

10.9 7       Consulting Agreement dated March 14, 1991, between the Company and
             Dr. Richard Mulligan. Reference Exhibit 10.29.

10.10 8      Lease Agreement dated September 7, 1990, between GeneSys
             Therapeutics Corporation and Ventana Leasing, Inc. Reference
             Exhibit 10.49.

10.11 8      License Agreement dated October 1, 1990, between GeneSys
             Therapeutics Corporation and Washington University. Reference
             Exhibit 10.34.

10.12 8      License Agreement dated April 4, 1991, between GeneSys
             Therapeutics Corporation and the Regents of the University of
             California. Reference Exhibit 10.37.

10.13 8      Warrant Agreement dated April 15, 1991, between GeneSys
             Therapeutics Corporation and Ventana Leasing, Inc. Reference
             Exhibit 10.50.

10.14 8      Letter Agreement dated April 17, 1991, between GeneSys
             Therapeutics Corporation and the Regents of the University of
             California, as amended by that Letter Agreement dated May 10, 1991.
             Reference Exhibit 10.51.

10.15 8      License Agreement dated June 7, 1991, between GeneSys Therapeutics
             Corporation and the Fred Hutchinson Cancer Research Center.
             Reference Exhibit 10.38.

10.16 8      License Agreement No. 1 dated August 20, 1991, between GeneSys
             Therapeutics Corporation and The Salk Institute for Biological
             Studies. Reference Exhibit 10.39.

10.17 8      Scientific Consulting Agreement dated November 8, 1991, between
             Somatix and Dr. Theodore Friedmann. Reference Exhibit 10.41.

10.18 8      Scientific Consulting Agreement dated November 8, 1991, between
             Somatix and Dr. Frederick Gage. Reference Exhibit 10.42.

10.19 8      Scientific Consulting Agreement dated November 8, 1991, between
             Somatix and Dr. Inder Verma. Reference Exhibit 10.43.

10.20 8      Consulting Agreement dated November 13, 1991, between Somatix and
             Dr. Harry F. Hixson, Jr. Reference Exhibit 10.44.

10.21 8      Warrant Agreement dated November 9, 1991, between GeneSys
             Therapeutics Corporation and Kleiner Perkins Caufield & Byers V.
             Reference Exhibit 10.45.

10.22 8      Agreement dated January 15, 1992, between Somatix and The Board of
             Trustees of the Leland Stanford Jr. University. Reference Exhibit
             10.46.

10.23 8      Registration Rights Agreement dated January 17, 1992, among Somatix
             and certain Investors as set forth on Exhibit A thereto. Reference
             Exhibit 10.47.

10.24 8      Shareholder Agreement dated January 21, 1992, among Somatix,
             GeneSys Therapeutics Corporation and Kleiner Perkins Caufield &
             Byers V. Reference Exhibit 10.48

10.25 9      License Agreement dated March 4, 1992, by and among Somatix, The
             Johns Hopkins University and The University of Texas System.
             Reference Exhibit 10.56.

10.26 9      Lease Agreement dated July 15, 1992, between Somatix and Alameda
             Real Estate Investments. Reference Exhibit 10.58.

10.27 9      1992 Stock Option Plan, as amended and restated.  Reference Exhibit
             10.63.

10.28 10     GeneSys Therapeutics Corporation 1991 Stock Option Plan and forms
             of agreement currently used thereunder. Reference Exhibit 28.5.

10.29 11     Sublease Agreement dated March 26, 1992, by and among GeneSys
             Therapeutics Corporation, Del Mar Plaza, Ltd. and Ligand
             Pharmaceuticals, Inc.; Consent to Sublease Agreement dated April
             10, 1992. Reference Exhibit 10.57.

                                       40.
<PAGE>   43
10.30 11     Employment Agreement dated July 10, 1992, between Somatix and Dr.
             Krzysztof S. Bankiewicz. Reference Exhibit 10.66.

10.31 12     Agreement dated January 15, 1993, by and between Somatix and the
             Regents of the University of California on behalf of its Davis
             Campus. Reference Exhibit 10.70.

10.32 12     Agreement dated February 10, 1993, by and between Somatix and the
             California Parkinson's Foundation. Reference Exhibit 10.71.

10.33* 12    Letter Agreement dated March 16, 1993, between Somatix and Vector
             Securities International, Inc. Reference Exhibit 10.72.

10.34 12     Employment Agreement dated July 1, 1993, between Somatix and David
             Carter. Reference Exhibit 10.73.

10.35 12     Agreement dated August 30, 1993, by and between Somatix and Ludwig
             Institute for Cancer Research. Reference Exhibit 10.74.

10.36 13     Employment Agreement dated November 11, 1993, between Somatix and
             Richard Mulligan. Reference Exhibit 10.76.

10.37 14     Property Lease Agreement dated February 8, 1994, between Somatix
             and Alameda Real Estate Investments. Reference Exhibit 10.77.

10.38 15     Property Lease Agreement dated May 5, 1994, between Somatix and
             Alameda Real Estate Investments. Reference Exhibit 10.55.

10.39* 15    Research Collaboration Agreement dated April 29, 1994, by and
             between Somatix and Baxter Healthcare Corporation. Reference
             Exhibit 10.53.

10.40 15     Stock Purchase Agreement dated April 29, 1994, by and between
             Somatix and Baxter Healthcare Corporation. Reference Exhibit 10.54.

10.41 15     Stock Purchase Agreement dated May 12, 1994, by and between Somatix
             and Health Care Partners, LLC. Reference Exhibit 10.56.

10.42 15     Common Stock Purchase Agreement dated November 29, 1993, among
             Somatix and the Investors listed on the Schedule of Investors
             attached thereto. Reference Exhibit 10.52.

10.43 15     Amended and Restated Registration Rights Agreement dated May 12,
             1994, among Somatix and the parties listed on Schedule A attached
             thereto. Reference Exhibit 10.57.

10.44 15     Master Equipment Lease Agreement dated May 24, 1994, between
             Somatix and Aberlyn Capital Management Limited Partnership.
             Reference Exhibit 10.58.

10.45 15     Agreement to Issue Warrant dated May 24, 1994, between Aberlyn
             Capital Management Limited Partnership and Somatix. Reference
             Exhibit 10.59.

10.46 15     Agreement to Issue Warrant dated May 24, 1994, between Aberlyn
             Capital Management Limited Partnership and Somatix. Reference
             Exhibit 10.60.

10.47 15     Master Equipment Lease Agreement dated June 30, 1994, between
             Financing for Science International, Inc. and Somatix. Reference
             Exhibit 10.61.

10.48 15     Warrant dated July 30, 1994, issued by Somatix to Financing for
             Science International, Inc. Reference Exhibit 10.62.

10.49* 16    Agreement dated November 2, 1993, by and between Somatix and
             Baxter Healthcare Corporation together with Amendment No. 1 dated
             September 30, 1994. Reference Exhibit 10.75.

10.50 17     Employment Agreement dated August 1, 1993, between Somatix and
             Arlene Jordan-Levy.

10.51 17     Employment Agreement dated August 1, 1993, between Somatix and
             Lawrence Cohen.

10.52 17     Employment Agreement dated November 1, 1993, between Somatix and
             Edward Oliver Lanphier II.

10.53 17     Employment Agreement dated December 30, 1993, between Somatix and
             Mark N.K. Bagnall.

10.54* 17    Non-Exclusive License Agreement dated April 20, 1994 by and between
             the Fred Hutchinson Cancer Research Center and Somatix.

10.55 17     Research Agreement dated June 1, 1994 between Baxter Healthcare
             Corporation and Somatix.

10.56* 17    Letter Agreement dated September 1, 1994 between Baxter Healthcare
             Corporation and Somatix.

10.57 18     Amendment #1 to the Warrant Agreement and Shareholder Agreement
             dated November 7, 1994 by and among Somatix, GeneSys Therapeutics
             Corporation and Kleiner Perkins Caufield & Byers V.


                                       41.
<PAGE>   44
10.58* 19    Agreement and Plan of Reorganization dated December 19, 1994 as
             amended on January 18, 1995 and January 31, 1995 among Somatix, STC
             Acquisition Co. and Merlin Pharmaceutical Corporation. Reference
             Exhibit 3.

10.59 19     Escrow Agreement, dated as of February 3, 1995, by and between STC
             Acquisition Company, The First National Bank of Boston and the
             stockholders of Merlin Pharmaceutical Corporation. Reference
             Exhibit 4.

10.60* 19    Consulting and Repurchase Agreement, dated February 3, 1995,
             between Somatix and Samuel D. Waksal. Reference Exhibit 5.

10.61* 19    Consulting and Repurchase Agreement, dated January 21, 1995,
             between Somatix and Thomas Shenk. Reference Exhibit 6.

10.62* 19    Consulting and Repurchase Agreement, dated February 3, 1995,
             between Somatix and R. Jude Samulski. Reference Exhibit 7.

10.63* 19    Consulting and Repurchase Agreement, dated February 3, 1995,
             between Somatix and Michael Kaplitt. Reference Exhibit 8.

10.64* 19    Consulting and Repurchase Agreement, dated February 3, 1995,
             between Somatix and Matthew During. Reference Exhibit 9.

10.65 19     Indemnification Agreement, dated as of December 19, 1994, as
             amended by Amendment No. 1, dated as of February 3, 1995, among
             Merlin Pharmaceutical Corporation and Samuel D. Waksal. Reference
             Exhibit 10.

10.66 19     Promissory Note, dated February 2, 1995, by and between Samuel D.
             Waksal and Somatix. Reference Exhibit 11.

10.67 20     Merlin Pharmaceutical Corporation 1993 Stock Option Plan.
             Reference Exhibit 99.1.

10.68 20     Non-Qualified Stock Option Agreement to be generally used in
             connection with Merlin Pharmaceutical Corporation 1993 Stock Option
             Plan. Reference Exhibit 99.2.

10.69 20     Stock Option Assumption Agreement - Installment Option.  Reference
             Exhibit 99.3.

10.70 20     Stock Option Assumption Agreement - Immediately Exercisable Option.
             Reference Exhibit 99.4.

10.71* 21    License Agreement, dated January 10, 1994, between Merlin
             Pharmaceutical Corporation and University of Florida Research
             Foundation. Reference Exhibit 10.13.

10.72* 21    License Agreement, dated May 1, 1994, between Merlin
             Pharmaceutical Corporation and University of Pittsburgh - of the
             Commonwealth System of Higher Education. Reference Exhibit 10.14.

10.73* 21    License Agreement, dated August 11, 1994, between Merlin
             Pharmaceutical Corporation and The Research Foundation of State
             University of New York. Reference Exhibit 10.15.

10.74* 21    License Agreement, dated August 17, 1994, between Merlin
             Pharmaceutical Corporation and University of Pittsburgh - of the
             Commonwealth System of Higher Education. Reference Exhibit 10.16.

10.75 21     Sublease Agreement, dated December 1, 1994, between Merlin
             Pharmaceutical Corporation and ICAgen, Inc. Reference Exhibit
             10.17.

10.76* 21    Amendment dated February 15, 1995 to License Agreement dated May 1,
             1994, between Merlin Pharmaceutical Corporation and University of
             Pittsburgh - of the Commonwealth System of Higher Education.
             Reference Exhibit 10.18.

10.77 21     Employment Agreement, dated April 7, 1995, between Somatix and Jan
             Drayer, M.D. Reference Exhibit 10.19.

10.78 22     Common Stock Purchase Agreement, dated June 17, 1995.  Reference
             Exhibit 10.20.

10.79 22     Preferred Stock Purchase Agreement, dated June 17, 1995.  Reference
             Exhibit 10.21.

10.80 22     Form of Warrant to Purchase Shares of Common Stock.  Reference
             Exhibit 10.22.

10.81**24    Stock Purchase Agreement, dated August 15, 1995, between Somatix
             Therapy Corporation and Bristol-Myers Squibb Company. Reference
             Exhibit 5.2.

10.82 25     Engagement Letter, dated April 27, 1995, between Somatix Therapy
             Corporation and Merrill Lynch & Co. of Merrill Lynch, Pierce,
             Fenner & Smith Incorporated.

                                       42.
<PAGE>   45
10.83 26     Amendment No. 2 to the Warrant Agreement and Shareholder Agreement,
             dated November 9, 1995, by and among Somatix Therapy Corporation
             and Kleiner Perkins Caufield and Byers V. Reference Exhibit 10.1

10.84 26     Mutual Termination Agreement, dated September 29, 1995, between
             Somatix Therapy Corporation and Baxter Healthcare Corporation.
             Reference Exhibit 10.2.

10.85        Subscription Agreement, dated September 24, 1996, by and between
             Somatix Therapy Corporation and Fletcher International Limited.

10.86        Warrant, dated September 25, 1995, issued by Somatix Therapy
             Corporation to Fletcher International Limited.

22.1 3       Subsidiaries of the Registrant.

23.1         Consent of Independent Auditors.

24.1         Power of Attorney (see pages 45 and 46).

27           Financial Data Schedule.


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

1        Incorporated by reference to exhibit of the registrant's Registration
         Statement on Form S-1 (File No. 33-4795) as filed with the SEC on April
         14, 1986.

2        Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for fiscal year ended June 30, 1986.

3        Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for the fiscal year ended June 30, 1989.

4        Incorporated by reference to exhibit filed with the registrant's Form
         8-K dated September 13, 1989.

5        Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for the fiscal year ended June 30, 1990.

6        Incorporated by reference to exhibit of the registrant's Registration
         Statement on Form S-4 (File No. 33-4795) as filed with the SEC on
         January 14, 1991.

7        Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for the fiscal year ended June 30, 1991.

8        Incorporated by reference to exhibit of the registrant's Registration
         Statement on Form S-1 (File No. 33-4795) as filed with the SEC on
         January 21, 1992.

9        Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for the fiscal year ended June 30, 1992.

10       Incorporated by reference to exhibit of the registrant's Registration
         Statement on Form S-8 as filed with the SEC on August 17, 1992.

11       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for quarter ended September 30, 1992.

12       Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for the fiscal year ended June 30, 1993.

13       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for the quarter ended December 31, 1993.

14       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for the quarter ended March 31, 1994.

15       Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for the fiscal year ended June 30, 1994.

16       This agreement was originally filed as Exhibit 10.75 to the
         registrant's Quarterly Report on Form 10-Q for the quarter ended
         December 31, 1993, has not been changed and is being filed with
         Amendment No. 1 thereto for convenience of reference.

17       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for the quarter ended September 30, 1994.

                                       43.
<PAGE>   46
18       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for the quarter ended December 31, 1994.

19       Incorporated by reference to exhibit filed with registrant's Amendment
         No. 1 to Current Report on Form 8-K/A as filed with the SEC on February
         14, 1995.

20       Incorporated by reference to exhibit of the registrant's Registration
         Statement on Form S-8 as filed with the SEC on March 3, 1995.

21       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for the quarter ended March 31, 1995.

22       Incorporated by reference to exhibit of the registrant's Registration
         Statement on Form S-3 (File No. 33-60873) as filed with the SEC on June
         19, 1995.

23       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for the quarter year ended June 30, 1995.

24       Incorporated by reference to exhibit filed with registrant's Current
         Report on Form 8-K as filed with the SEC September 20, 1995.

25       Incorporated by reference to exhibit filed with the registrant's Annual
         Report on Form 10-K for the fiscal ended September 30, 1995.

26       Incorporated by reference to exhibit filed with the registrant's
         Quarterly Report on Form 10-Q for the quarter ended December 31, 1995.

*        Confidential treatment has been granted as to certain portions of this
         agreement.

**       Confidential treatment has been requested as to certain portions of
         this agreement. Such omitted confidential information has been
         designated by an asterisk and has been filed separately with the
         Commission pursuant to Rule 24b-2 under the Securities Exchange Act of
         1934, as amended, pursuant to an application for confidential
         treatment.

                                       44.
<PAGE>   47
                                   SIGNATURES

         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, as amended, (the "Exchange Act") the registrant has duly
caused this report to be signed on its behalf by the undersigned, thereunto duly
authorized.

         Dated:  September 27, 1996

                             SOMATIX THERAPY CORPORATION

                             By:  DAVID W. CARTER
                                  -------------------------------------------
                                  David W. Carter
                              Chairman, President and Chief Executive Officer

         KNOW ALL MEN BY THESE PRESENTS, that each person who signature appears
below constitutes and appoints jointly and severally, David W. Carter and Edward
O. Lanphier II, or either of them as his or her true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him or her and in his or her name, place and stead, in any
and all capacities, to sign any and all amendments (including post-effective
amendments) to this Report on Form 10-K, and to file the same, with all exhibits
thereto, and other documents in connection therewith, with the Securities and
Exchange Commission, granting unto said attorneys-in-fact and agents, and each
of them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in connection therewith, as fully to all
intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or any of them, or their
or his substitute or substitutes, may lawfully do or cause to be done by virtue
hereof.

         IN WITNESS WHEREOF, each of the undersigned has executed this Power of
Attorney as of the date indicated.

         Pursuant to the requirements of the Exchange Act, this report has been
signed below by the following persons on behalf of the registrant and in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
  Signature                                  Title                       Date
  ---------                                  -----                       ----
<S>                               <C>                               <C>
      DAVID W. CARTER             Chief Executive Officer           September 27, 1996
- ----------------------------      (Principal Executive Officer)
     (David W. Carter)


   EDWARD O. LANPHIER II          Vice President, Finance           September 27, 1996
- ----------------------------      (Principal Financial and
  (Edward O. Lanphier II)         Accounting Officer)


        KAREN DAVIS               Director                          September 27, 1996
- ----------------------------
   (Karen Davis, Ph.D)


    MICHAEL R. EISENSON           Director                          September 27, 1996
- ----------------------------
   (Michael R. Eisenson)
</TABLE>


                                       45.
<PAGE>   48
<TABLE>
<CAPTION>
  Signature                                  Title                       Date
  ---------                                  -----                       ----
<S>                                      <C>                        <C>

         FRED H. GAGE                     Director                   September 27, 1996
- ---------------------------------
     (Fred H. Gage, Ph.D.)


     HARRY F. HIXSON, JR.                 Director                   September 27, 1996
- ---------------------------------
 (Harry F. Hixson Jr., Ph.D.)


                                          Director                   September   , 1996
- ---------------------------------
 (John T. Potts, Ph.D., M.D.)


       LEON E. ROSENBERG                  Director                   September 27, 1996
- ---------------------------------
   (Leon E. Rosenberg, M.D.)


        THOMAS E. SHENK                   Director                   September 27, 1996
- ---------------------------------
    (Thomas E. Shenk, Ph.D)


        INDER M. VERMA                    Director                   September 27, 1996
- ---------------------------------
    (Inder M. Verma, Ph.D.)


       SAMUEL D. WAKSAL                   Director                   September 27, 1996
- ---------------------------------
   (Samuel D. Waksal, Ph.D.)
</TABLE>

                                       46.

<PAGE>   1
                                                                    EXHIBIT 3.11


                           CERTIFICATE OF DESIGNATION
                 OF PREFERENCES OF SERIES B-1 PREFERRED STOCK OF
                          SOMATIX THERAPY CORPORATION,
                             A DELAWARE CORPORATION

            The undersigned David W. Carter and J. Stephan Dolezalek hereby
certify that:

            (i) They are the duly elected and acting President and Chief
Executive Officer and Assistant, respectively, of Somatix Therapy Corporation, a
Delaware corporation (the "Corporation").

            (ii) Pursuant to the authority conferred upon the Board of Directors
of the Corporation by paragraph (B) of Article IV of the Corporation's Restated
Certificate of Incorporation (the "Certificate"), the Board of Directors of the
Corporation on September 23, 1996 adopted the following resolutions creating a
series of preferred stock designated as Series B-1 Preferred Stock;

            WHEREAS, the Certificate provides for a class of shares known as
Preferred Stock, issuable from time to time in one or more series; and

            WHEREAS, the Board of Directors of the Corporation is authorized by
the Certificate to determine the powers, rights, preferences, qualifications,
limitations and restrictions granted to or imposed upon any wholly unissued
series of Preferred Stock, to fix the number of shares constituting any such
series, and to determine the designation thereof, or any of them; and

            WHEREAS, the Board of Directors of the Corporation, in that certain
Certificate of Designation of Preferences dated June 23, 1995 and filed with the
Secretary of State of the State of Delaware on June 27, 1995 (the "Series A
Certificate"), designated and fixed the powers, rights, preferences
qualifications, limitations and restrictions relating to those series of
Preferred Stock known as Series A-1 Preferred Stock (the "Series A-1 Preferred
Stock") and Series A-2 Preferred Stock (the "Series A-2 Preferred Stock") (the
Series A-1 Preferred Stock and the Series A-2 Preferred Stock shall be jointly
referred to herein as the "Series A Preferred Stock");

            WHEREAS, the Corporation intends to enter into that certain
Subscription Agreement (the "Subscription Agreement") pursuant to which it
would, among other things, issue shares of Preferred Stock to a certain investor
(the "Investor");

            WHEREAS, the Board of Directors of the Corporation desires, pursuant
to its authority as aforesaid, to determine and fix the powers, rights,
preferences, qualifications,



<PAGE>   2



limitations and restrictions relating to the Series B-1 Preferred Stock and the
number of shares constituting, and the designation of, each such series.

            NOW, THEREFORE, BE IT RESOLVED, that pursuant to the authority
vested in the Board of Directors of the Corporation in accordance with the
provisions of the Certificate, the Series B-1 Preferred Stock is hereby created,
and the Board of Directors hereby fixes and determines the designation of, the
number of shares constituting, and the rights, preferences, privileges and
restrictions relating to, such Series B-1 Preferred Stock as follows:

            1. Designation. The series of preferred stock of the Corporation
shall be designated as "Series B-1 Preferred Stock."

            2. Authorized Number. The number of shares constituting the Series
B-1 Preferred Stock shall be thirty-three thousand three hundred thirty-three
(33,333) shares. The rights, preferences, restrictions and other matters
relating to the Series B-1 Preferred Stock set forth below are subject to the
rights, preferences, restrictions and other matters relating to the Series A
Preferred Stock but shall be senior in all respects to all other series of
Preferred Stock that may be issued by the Corporation from time to time;
provided, however, that any series or subseries of Preferred Stock issued to the
Investor shall have the same rights, preferences, restrictions and other matters
as the Series B-1 Preferred Stock; provided further that in the event the
Corporation obtains stockholder approval of the sale of any additional series or
subseries of Preferred Stock to the Investor pursuant to the put rights set
forth in the Subscription Agreement, the provisions of Section 6(B)(ii) hereof
shall not apply to such additional series or subseries. The Board of Directors
is also authorized to decrease the number of shares of any series of preferred
stock prior or subsequent to the issue of that series, but not below the number
of shares of such series then outstanding. In case the number of shares of any
series shall be so decreased, the shares constituting such decrease shall resume
the status which they had prior to the adoption of the resolution originally
fixing the number of shares of such series.

            3. Dividend Rights. Subject to the prior dividend rights of holders
of Series A Preferred Stock as set forth in the Series A Certificate, the
holders of the Series B-1 Preferred Stock shall be entitled to receive, when, as
and if declared by the Board of Directors, out of any assets of the corporation
legally available therefor, such dividends as may be declared from time to time
by the Board of Directors. Subject to the prior dividend rights of holders of
Series A Preferred Stock, the Board of Directors shall not pay any dividend to
the holders of the Common Stock unless and until it has paid an equivalent
dividend, on a pro rata per share basis, to the holders of the Series B-1
Preferred Stock.

            4. Liquidation Preference.

                  (A) In the event of any liquidation, dissolution, change of
control or winding up of the Corporation, whether voluntary or involuntary, the
holders of the Series A Preferred Stock shall be entitled to receive, prior and
in preference to any distribution of

                                       2.

<PAGE>   3



any of the assets or surplus funds of the Corporation to the holders of the
Series B-1 Preferred Stock or the Common Stock by reason of their ownership
thereof, the amount of $25.00 per share (as adjusted for any stock dividends,
combinations or splits with respect to such shares) plus all accrued or declared
but unpaid dividends on such share for each share of Series A Preferred Stock
then held by them. If upon the occurrence of such event, the assets and funds
thus distributed among the holders of the Series A Preferred Stock shall be
insufficient to permit the payment to such holders of the full aforesaid
preferential amount, then the entire assets and funds of the Corporation legally
available for distribution shall be distributed ratably among the holders of the
Series A Preferred Stock in proportion to the preferential amount each such
holder is otherwise entitled to receive.

                  (B) After payment to the holders of Series A Preferred Stock
of the amounts set forth in 4(A) above, the holders of the Series B-1 Preferred
Stock shall be entitled to receive, prior and in preference to any distribution
of any of the assets or surplus funds of the Corporation to the holders of the
Common Stock by reason of their ownership thereof, the amount of One Hundred
Fifty Dollars ($150.00) (the "Original Issue Price") per share (as adjusted for
any stock dividends, combinations or splits with respect to such shares) plus
all accrued or declared but unpaid dividends on such share for each share of
Series B-1 Preferred Stock then held by such holder. If upon the occurrence of
such event, the assets and funds thus distributed among the holders of the
Series B-1 Preferred Stock shall be insufficient to permit the payment to such
holders of the full aforesaid preferential amount, then the entire assets and
funds of the Corporation legally available for distribution shall be distributed
ratably among the holders of the Series B-1 Preferred Stock in proportion to the
preferential amount each such holder is otherwise entitled to receive.

                  (C) After payment to the holders of the Series A Preferred
Stock and the Series B-1 Preferred Stock of the amounts set forth in Sections
4(A) and 4(B), respectively, above, the entire remaining assets and funds of the
Corporation legally available for distribution, if any, shall be distributed
among the holders of the Common Stock in proportion to the shares of Common
Stock then held by them.

                  (D) For purposes of this Section 4, (i) any acquisition of the
Corporation by means of merger or other form of corporate reorganization in
which outstanding shares of the Corporation are exchanged for securities or
other consideration issued, or caused to be issued, by the acquiring corporation
or its subsidiary (other than a mere reincorporation transaction) or (ii) a sale
of all or substantially all of the assets of the Corporation or (iii) any other
transaction or series of related transactions by the Corporation in which in
excess of 50% of the Corporation's voting power is transferred, shall be treated
as a liquidation, dissolution or winding up of the Corporation and shall entitle
the holders of Series A Preferred Stock and Series B-1 Preferred Stock to
receive at the closing in cash, securities or other property (valued as provided
in Section 4(E) below) the amount as specified in Sections 4(A) and 4(B),
respectively, above.

                                       3.


<PAGE>   4



                  (E) Whenever the distribution provided for in this Section 4
shall be payable in securities or property other than cash, the value of such
distribution shall be as follows:

                        (i) Securities not subject to investment letter or other
         similar restrictions on free marketability:

                                (A) If traded on a securities exchange, the
         value shall be deemed to be the average of the closing prices of the
         securities on such exchange over the 30-day period ending three (3)
         days prior to the closing;

                                (B) If actively traded over-the-counter, the
         value shall be deemed to be the average of the closing bid or sale
         prices (whichever are applicable) over the 30-day period ending three
         (3) days prior to the closing; and

                                (C) If there is no active public market, the
         value shall be the fair market value thereof, as determined in good
         faith by the Board of Directors of the Corporation.

                        (ii) The method of valuation of securities subject to
         investment letter or other restrictions on free marketability (other
         than restrictions arising solely by virtue of a stockholder's status as
         an affiliate or former affiliate) shall be to make an appropriate
         discount from the market value determined as above in (i) (A), (B) or
         (C) to reflect the approximate fair market value thereof, as determined
         in good faith by the Board of Directors of the Corporation.

                        (iii) In the event of any bona-fide dispute between the
         Corporation and one or more holders of the Series A Preferred Stock or
         Series B-1 Preferred Stock as to any fair market value determination
         under clauses (i)(C) or (ii) above, such dispute shall be resolved
         through binding arbitration under the rules of the American Arbitration
         Association, with the arbitration panel consisting of persons familiar
         with the valuation of public and private entities and such panel being
         advised, as to such valuation issues, by an investment bank of
         nationally recognized standing, the costs thereof to be borne by the
         non-prevailing party.

            5. Redemption. The Series B-1 Preferred Stock is not redeemable.

            6. Conversion. The holders of Series B-1 Preferred Stock shall have
conversion rights as follows (the "Conversion Rights"):

                  (A) Right to Convert. On and after November 9, 1996, each such
share shall be convertible upon delivery of such shares in accordance with
Section 6(C) below on any business day (each a "Conversion Date") at the option
of the holder into that number of shares of Common Stock equal to the quotient
obtained by dividing (i) the Original Issue Price multiplied by the number of
such shares to be converted at such time,

                                       4.


<PAGE>   5



by (ii) 101% of the average of the daily volume-weighted average price (the
"Conversion Price") of the Common Stock reported by The Nasdaq Stock Market
("Nasdaq") for the forty (40) trading day period (the "Pricing Period") ending
two (2) trading days prior to the Conversion Date; provided, however, that the
Conversion Price shall in no event exceed 115% of the daily volume-weighted
average closing price of the Common Stock as reported by Nasdaq for the first
five (5) days of such Pricing Period; provided further, that the minimum number
of shares which may be converted at any one time shall be such number of shares
of Series B-1 Preferred Stock as shall be convertible in accordance with the
formula set forth above into seventy-five thousand (75,000) shares of Common
Stock or such lesser number of shares as shall be then outstanding; and provided
further, that in the event there is any split, combination, reclassification of
or dividend on the Common Stock (an "Event") during the Pricing Period, all
pre-Event prices during the Pricing Period shall be adjusted, and calculated, on
a post-Event basis.

                  (B) Automatic Conversion. Each share of Series B-1 Preferred
Stock shall automatically be converted into Common Stock on the earlier of (i)
September 25, 1999, in which event each share of Series B-1 Preferred Stock
shall automatically be converted into Common Stock in accordance with the
formula set forth in Section 6(A) above using September 25, 1999 as the
Conversion Date, or (ii) at such time as the daily volume-weighted average price
of the Common Stock as reported by Nasdaq for any consecutive sixty (60) day
trading period commencing after March 25, 1997 (the "Premium Period") is greater
than 130% of the closing price of the Common Stock as reported by Nasdaq on
September 24, 1996, in which event each share of Series B-1 Preferred Stock
shall be converted into Common Stock in accordance with the formula set forth in
Section 6(A) above using the sixtieth (60th) trading day of the Premium Period
as the Conversion Date; provided, however, that the Conversion Price under
Section 6(B)(ii) shall in no event exceed 130% of the closing price of the
Common Stock as reported by Nasdaq on September 24, 1996; and provided further
that, in the event the Corporation obtains stockholder approval of the sale of
any additional series or subseries of Preferred Stock to the Investor pursuant
to the put rights set forth in the Subscription Agreement, this Section 6(B)(ii)
shall be null and void and of no further force or effect.

                  (C) Mechanics of Conversion. Before any holder of Series B-1
Preferred Stock shall be entitled to convert the same into shares of Common
Stock, he shall surrender the certificate or certificates therefor, duly
endorsed, at the office of this Corporation or of any transfer agent for the
Series B-1 Preferred Stock, and shall give written notice by mail, postage
prepaid, or by facsimile, confirmed by mail, to this Corporation at its
principal corporate office, of the election to convert the same and shall state
therein the name or names in which the certificate or certificates for shares of
Common Stock are to be issued. The Conversion Date shall be the date of such
surrender of the Series B-1 Preferred Stock to be converted, and the person or
persons entitled to receive the shares of Common Stock issuable upon such
conversion shall be treated for all purposes as the record holder or holders of
such shares of Common Stock as of such date. This Corporation or the transfer
agent, if any, for such shares shall, within two (2) business days of the
Conversion Date, issue and deliver at such office to such holder of the Series
B-

                                       5.



<PAGE>   6



1 Preferred Stock, or to the nominee or nominees of such holder, a certificate
or certificates for the number of shares of Common Stock to which such holder
shall be entitled as aforesaid. for purposes of this Section 6, the term
"business day" shall mean any day on which banking institutions in the City and
State of New York are open for business.

                  (D) Adjustments for Reclassification and Reorganization. If
the Common Stock issuable upon conversion of the Series B-1 Preferred Stock
shall be changed into the same or a different number of shares of any other
class or classes of stock, whether by capital reorganization, reclassification
or otherwise (other than a merger or other reorganization referred to in Section
4(D) above), the number of shares of such other class or classes of stock into
which the Series B-1 Preferred Stock shall be convertible shall, concurrently
with the effectiveness of such reorganization or reclassification, be
proportionately adjusted so that the Series B-1 Preferred Stock shall be
convertible into, in lieu of the number of shares of Common Stock which the
holders would otherwise have been entitled to receive, a number of shares of
such other class or classes of stock equivalent to the number of shares of
Common Stock that would have been subject to receipt by the holders upon
conversion of the Series B-1 Preferred Stock immediately before that change.

                  (E) No Impairment. This Corporation will not, by amendment of
its Certificate or through any reorganization, recapitalization, transfer of
assets, consolidation, merger, dissolution, issue or sale of securities or any
other voluntary action, avoid or seek to avoid the observance or performance of
any of the terms to be observed or performed hereunder by this Corporation, but
will at all times in good faith assist in the carrying out of all the provisions
of this Section 6 and in the taking of all such action as may be necessary or
appropriate in order to protect the Conversion Rights of the holders of the
Series B-1 Preferred Stock against impairment.

                  (F) No Fractional Shares and Certificate as to Adjustments.

                        (i) No fractional shares shall be issued upon conversion
         of the Series B-1 Preferred Stock, and the number of shares of Common
         Stock to be issued shall be rounded to the nearest whole share. Whether
         or not fractional shares are issuable upon such conversion shall be
         determined on the basis of the total number of shares of Series B-1
         Preferred Stock the holder is at the time converting into Common Stock
         and the number of shares of Common Stock issuable upon such aggregate
         conversion.

                        (ii) Upon the occurrence of any adjustment or
         readjustment of the number of shares of Common Stock into which the
         Series B-1 Preferred Stock can be converted pursuant to Section 6(D)
         above, this Corporation, at its expense, shall promptly compute such
         adjustment or readjustment in accordance with the terms hereof and
         prepare and furnish to each holder of Series B-1 Preferred Stock a
         certificate setting forth such adjustment or readjustment and showing
         in detail the facts upon which such adjustment or readjustment is
         based.

                                       6.



<PAGE>   7




                  (G) Notices of Record Date. In the event of any taking by this
Corporation of a record of the holders of any class of securities for the
purpose of determining the holders thereof who are entitled to receive any
dividend (other than a cash dividend) or other distribution, any right to
subscribe for, purchase or otherwise acquire any shares of stock of any class or
any other securities or property, or to receive any other right, this
Corporation shall mail to each holder of Series B-1 Preferred Stock, at least
twenty (20) days prior to the date specified therein, a notice specifying the
date on which any such record is to be taken for the purpose of such dividend,
distribution or right, and the amount and character of such dividend,
distribution or right.

                  (H) Reservation of Stock Issuable Upon Conversion. This
Corporation shall at all times reserve and keep available out of its authorized
but unissued shares of Common Stock solely for the purpose of effecting the
conversion of the Series B-1 Preferred Stock such number of its shares of Common
Stock as shall from time to time be sufficient to effect the conversion of all
outstanding shares of the Series B-1 Preferred Stock; and if at any time the
number of authorized but unissued shares of Common Stock shall not be sufficient
to effect the conversion of all the then outstanding Series B-1 Preferred Stock,
in addition to such other remedies as shall be available to the holder of such
Series B-1 Preferred Stock, this Corporation will take such corporate action as
may, in the opinion of its counsel, be necessary to increase its authorized but
unissued shares of Common Stock to such number of shares as shall be sufficient
for such purposes.

                  (I) Notices. Any notice required by the provisions of this
Section 6 to be given to the holders of Series B-1 Preferred Stock shall be
deemed given if deposited in the United States mail, postage prepaid and return
receipt requested, and addressed to each holder of record at his address
appearing on the books of this Corporation.

            7. Voting Rights. Subject to the rights of the holders of the Series
A Preferred Stock as set forth in the Series A Certificate, each holder of
shares of Series B-1 Preferred Stock shall be entitled to the number of votes
equal to the number of shares of Common Stock into which such shares of Series
B-1 Preferred Stock could be converted as of the record date for any action and
shall have voting rights and powers equal to the voting rights and powers of the
Common Stock (except as otherwise expressly provided herein, in the Series A
Certificate or as required by law, voting together with the Series A Preferred
Stock and Common Stock as a single class) and shall be entitled to notice of any
stockholders' meeting in accordance with the Bylaws of the Corporation.
Fractional votes shall not, however, be permitted and any fractional voting
rights resulting from the above formula (after aggregating all shares into which
shares of Series B-1 Preferred Stock held by each holder could be converted)
shall be rounded to the nearest whole number (with one-half being rounded
upward). Each holder of Common Stock shall be entitled to one (1) vote for each
share of Common Stock held.

            8. Status of Converted or Redeemed Stock. In the event any Series
B-1 Preferred Stock shall be converted pursuant to Section 6 hereof, the shares
so converted shall be promptly canceled after the conversion thereof. All such
shares shall upon their

                                       7.



<PAGE>   8



cancellation become authorized but unissued shares of Preferred Stock and may be
reissued only as part of a new series or subseries of Preferred Stock to be
created by resolution or resolutions of the Board of Directors, subject to the
conditions and restrictions on issuance set forth herein.

                     *                *                 *

            RESOLVED FURTHER, that the Chairman of the Board, the Chief
Executive Officer, the President or any Vice President, and the Secretary, the
Chief Financial Officer, the Treasurer, or any Assistant Secretary or Assistant
Treasurer of this Corporation are each authorized to execute, verify, and file a
Certificate of Designation of Preferences in accordance with Delaware law.

                                       8.



<PAGE>   9


            IN WITNESS WHEREOF, the undersigned have executed this certificate
on September 23, 1996.



                                       /s/ DAVID W. CARTER
                                      -------------------------------------
                                      David W. Carter
                                      President and Chief Executive Officer



                                      /s/ J. STEPHAN DOLEZALEK
                                      -------------------------------------
                                      J. Stephan Dolezalek
                                      Assistant Secretary



            The undersigned certify under penalty of perjury that they have read
the foregoing Certificate of Designation of Preferences and know the contents
thereof, and that the statements therein are true.

            Executed at Alameda, California, on September 23, 1996.



                                      /s/ DAVID W. CARTER
                                      -------------------------------------
                                      David W. Carter
                                      President and Chief Executive Officer



                                      /s/ J. STEPHAN DOLEZALEK
                                      -------------------------------------
                                      J. Stephan Dolezalek
                                      Assistant Secretary


                                       9.


<PAGE>   1
                                                                   EXHIBIT 10.85

                             SUBSCRIPTION AGREEMENT



                  This Subscription Agreement (the "Agreement") dated September
24, 1996 is entered into and by and between Somatix Therapy Corporation, a
Delaware corporation ("Somatix"), and Fletcher International Limited, a company
organized under the laws of the Cayman Islands ("Fletcher").

                  Unless otherwise defined herein, capitalized terms used herein
and not defined herein shall have the meanings given to them in Regulation S
("Regulations S") under the United States Securities Act of 1933, as amended
(the "Securities Act").

                  The parties hereto agree as follows:

                  1. Purchase and Sale. In consideration of and upon the basis
of the representations, warranties and agreements and subject to the terms and
conditions set forth in this Agreement:

               a. Put Options. Fletcher agrees to grant to Somatix on the
          Closing Date specified in Section 2 hereof two put options each having
          the terms set forth in Annex A hereto (each a "Put Option").

               b. Warrant. Somatix agrees to sell to Fletcher, and Fletcher
          agrees to purchase from Somatix, on the Closing Date specified in
          Section 2 hereof, a warrant having the terms set forth in Annex B
          hereto (the "Warrant") to purchase an aggregate of up to 650,000
          shares of Somatix's Common Stock, par value $0.001 per share (the
          "Common Stock"), which, in accordance with the terms and conditions of
          this Agreement, will be freely tradable. The shares of Common Stock
          issuable pursuant to the Warrant are referred to herein as the
          "Warrant Shares."

               c. Series B-1 Preferred Shares. Somatix agrees to sell to
          Fletcher, and Fletcher agrees to purchase from Somatix, on the Closing
          Date specified in Section 2 hereof, 33,333 shares of Series B-1
          Preferred Stock, stated value $150.00 per share, having the terms and
          conditions set forth in Annex C hereto (the "Series B-1 Preferred
          Shares") at a price per share equal to such stated value per share
          (the "Shares B-1 Purchase Price").

                  2. Closing. The delivery of the Put Options referred to in
Section 1(a) and the Warrant referred to in Section 1(b) and the Series B-1
Preferred Shares referred to in Section 1(c) (the "Closing") shall take place at
12:00 noon (New York time) on September 25, 1996, or at such other date and time
as Fletcher and Somatix may agree in writing (such date and time being referred
to herein as the "Closing Date").
<PAGE>   2
                  At the Closing, the following deliveries shall be made:

               a. Warrant. Somatix shall deliver the certificate representing
          the Warrant to Fletcher. Such certificate shall be substantially in
          the form attached hereto as Annex B hereto.

               b. Series B-1 Preferred Shares. Somatix shall deliver the
          certificates representing the Series B-1 Preferred Shares, duly
          registered on the books of Somatix in the name of Fletcher, against
          payment by Fletcher of the Series B-1 Purchase Price in immediately
          available funds to the following account: Wells Fargo Bank, Account
          No. 4103-126348, ABA No. 121000248.

               c. Officers' Certificate. The officers' certificate required by
          Sections 8(a) and 9(a) shall be delivered to Fletcher and Somatix,
          respectively.

               d. Legal Opinions. The legal opinions required by Sections 8(b)
          and 9(b) shall be delivered to Fletcher and Somatix, respectively.

                  The foregoing deliveries shall be deemed to occur
simultaneously as part of a single transaction, and no delivery shall be deemed
to have been made until all such deliveries have been made.

                  As used herein, the term "Preferred Shares" includes (i) the
Series B-1 Preferred Shares and (ii) the shares of Series B-2 Preferred Stock
and Series B-3 Preferred Stock of Somatix issuable to Fletcher pursuant to the
Put Options.

                  3. Representations and Warranties of Somatix. Somatix hereby
represents and warrants to Fletcher on the date hereof, on the Closing Date, on
the date any Preferred Share is converted (each a "Preferred Share Conversion
Date"), on each Put Option Exercise Date (as defined in Annex A hereto) and on
each Warrant Exercise Date (as defined in Annex B hereto) as follows:

                    a. Somatix has been duly incorporated and is validly
               existing in good standing under the laws of Delaware.

                    b. This Agreement has been duly authorized, executed and
               delivered by Somatix and, when duly authorized, executed and
               delivered by Fletcher, will be a valid and binding agreement
               enforceable against Somatix in accordance with its terms, subject
               to bankruptcy, insolvency, fraudulent transfer, reorganization,
               moratorium and similar laws of general applicability relating to
               or affecting creators' rights generally and to general principles
               of equity.

                    c. Somatix has full corporate power and authority necessary
               to enter into this Agreement and to perform its obligations
               hereunder.

                                       2.
<PAGE>   3
                           d. No consent, approval, authorization or order of
         any court, governmental agency or other body is required for execution
         by Somatix of this Agreement or the performance by Somatix of any of
         its obligations hereunder.

                           e. Neither the execution by Somatix of this Agreement
         nor the performance by Somatix of any of its obligations hereunder
         will:

                                    (1) violate, conflict with, result in a
                  breach of, or constitute a default (or an event which with the
                  giving of notice or the lapse of time or both would be
                  reasonably likely to constitute a default) under (A) the
                  Certificate of Incorporation, by-laws or any other
                  constitutive document of Somatix or any of its affiliates, (B)
                  any decree, judgment, order, law, treaty, rule, regulation or
                  determination of which Somatix is aware (after due inquiry) of
                  any court, governmental agency or body, or arbitrator having
                  jurisdiction over Somatix or any of its affiliates or any of
                  their respective properties or assets, (C) the terms of any
                  bond, debenture, note or any other evidence of indebtedness,
                  or any material agreement, stock option or similar plan,
                  indenture, lease, mortgage, deed of trust or other instrument
                  to which Somatix or any of its affiliates is a party, by which
                  Somatix or any of its affiliates is bound, or to which any of
                  the properties or assets of Somatix or any of its affiliates
                  is subject, or (D) the terms of any "lock-up" or similar
                  provision of any underwriting or similar agreement to which
                  Somatix or any of its affiliates is a party; or

                                    (2) result in the creation or imposition of
                  any lien, charge or encumbrance upon (A) any Preferred Share,
                  the Warrant or any Common Stock or (B) any of the properties
                  or assets of Somatix or any of its affiliates.

                           f. When issued to Fletcher against payment therefor
         in accordance with the terms of this Agreement, any Preferred Share or
         the Warrant, each share of Common Stock:

                                    (1) will have been duly and validly
                  authorized, duly and validly issued, fully paid and
                  non-assessable;

                                    (2) will be free and clear of any security
                  interests, liens, claims or other encumbrances; and

                                    (3) will not have been issued or sold in
                  violation of any preemptive or other similar rights of the
                  holders of any securities of Somatix.

                           g. When any share of Common Stock is issued to
         Fletcher pursuant to the terms of this Agreement, any Preferred Share
         or the Warrant, the Common Stock will be quoted on the Nasdaq National
         Market ("NASDAQ") or listed and

                                       3.
<PAGE>   4
         registered on a national securities exchange (as defined in the United
         States Securities Exchange Act of 1934, as amended (the "Exchange
         Act")).

                           h. Somatix is a Reporting Issuer within the meaning
         of Regulation S.

                           i. There is no pending or, to the best knowledge of
         Somatix, threatened action, suit, proceeding or investigation before
         any court, governmental agency or body, or arbitrator having
         jurisdiction over Somatix or any of its affiliates that would
         materially affect the execution by Somatix of, or the performance by
         Somatix of its obligations under, this Agreement; provided, however,
         that the representations and warranties contained in this Section 3(i)
         shall not apply to any action, threatened action, suit, proceeding or
         investigation initiated by Fletcher and shall not be required to be
         given in respect of any Preferred Share Conversion Date or Warrant
         Exercise Date.

                           j. None of Somatix's filings with the United States
         Securities and Exchange Commission (the "SEC") under the Securities Act
         or under Section 13(a) or 15(d) of the Exchange Act (each, an "SEC
         Filing"), or press releases material to the business of Somatix as a
         whole, as of their respective dates, contain any untrue statement of a
         material fact or omit to state any material fact necessary in order to
         make the statements, in the light of the circumstances under which they
         were made, not misleading.

                           k. Since the date of Somatix's most recent SEC Filing
         (including Somatix's Current Report on Form 8-K to be filed in the form
         attached hereto as Exhibit A), there has not been, and Somatix is not
         aware of any development that might result in, any material adverse
         change in the condition, financial or otherwise, or in the business
         affairs or business prospects of Somatix, whether or not arising in the
         ordinary course of business, except as disclosed in such SEC Filing;
         provided, however, that the representations and warranties contained in
         this Section 3(k) shall not be required to be given in respect of any
         Preferred Share Conversion Date or Warrant Exercise Date.

                           l. The offer and sale of the Preferred Shares, the
         Common Stock, the Warrant and the Warrant Shares to Fletcher pursuant
         to this Agreement will, subject to compliance by Fletcher with the
         applicable representations and warranties contained in Section 4 hereof
         and with the applicable covenants and agreements contained in Section 6
         hereof, be made in accordance with the provisions and requirements of
         Regulation S and any applicable state law.

                           m. Neither Somatix nor any of its affiliates nor any
         person acting on its or their behalf has engaged or will engage in any
         Directed Selling Efforts with respect to the Preferred Shares, the
         Common Stock, the Warrant or the Warrant

                                       4.
<PAGE>   5
         Shares, and all such persons understand and have complied and will
         otherwise comply with the requirements of Regulation S.

                           n. The transactions contemplated by this Agreement
         are not part of a plan or scheme on the part of Somatix, any of its
         affiliates or any person acting on its or their behalf to evade the
         registration provisions of the Securities Act.

                           o. Somatix has not issued, and after the Closing Date
         will not issue, any stop transfer order or other order impeding the
         sale and delivery of the Preferred Shares, the Common Stock, the
         Warrant or the Warrant Shares issuable hereunder except for a stop
         order restricting the sale of any of the foregoing securities to any
         person in the United States or to or for the account or benefit of any
         U.S. person during an applicable Restricted Period. Notwithstanding the
         foregoing provision, Somatix shall place the following legend on the
         certificate representing any security issued hereunder prior to the
         expiration of the Restricted Period (as defined herein) applicable to
         such security:

                  The securities represented by this certificate were issued on
                  [insert date on which securities were issued to Fletcher upon
                  sale, conversion or exercise, as the case may be] (the
                  "Original Issue Date") pursuant to the Subscription Agreement
                  dated September 24, 1996 between Somatix Therapy Corporation
                  ("Somatix") and Fletcher International Limited. The securities
                  represented by this certificate have not been registered under
                  the Securities Act of 1933, as amended (the "Securities Act"),
                  and have been sold in reliance on the exemption from
                  registration provided by Regulation S under the Securities Act
                  ("Regulation S"). Prior to the expiration of a 40-day
                  restricted period beginning on the Original Issue Date (the
                  "Restricted Period"), the securities represented by this
                  certificate may not be offered or sold, directly or
                  indirectly, within the United States (as defined in Regulation
                  S under the Act), to a U.S. Person (as defined in Regulation S
                  under the Act) or for the account or benefit of a U.S. Person.
                  Neither Somatix nor its transfer agent shall be obligated to
                  remove this legend unless it shall have received an opinion of
                  counsel stating that such removal complies with the
                  requirements of Regulation S.

         provided, however, that as used in this Agreement and as reflected in
         such legend, the term "Restricted Period," with respect to any
         security, shall mean the Restricted Period then applicable to such
         security pursuant to Regulation S (or any applicable successor
         thereto).

                           p. Neither Somatix nor any of its affiliates has
         offered to sell or sold any Common Stock or any securities convertible
         or exchangeable into or exercisable for Common Stock in reliance upon
         Regulation S at any time during the

                                       5.
<PAGE>   6
         past 12 months; and there are no outstanding convertible or
         exchangeable securities that have been offered or sold in reliance upon
         Regulation S, except, in each case the Warrant and the Preferred Shares
         sold pursuant hereto.

                  4. Representations and Warranties of Fletcher. Fletcher hereby
represents and warrants to Somatix as follows:

                           a. Fletcher has been duly incorporated and is validly
         existing in good standing under the laws of the Cayman Islands.

                           b. This Agreement has been duly authorized, executed
         and delivered by Fletcher and, when duly authorized, executed and
         delivered by Somatix, will be a valid and binding agreement enforceable
         against Fletcher in accordance with its terms, subject to bankruptcy,
         insolvency, fraudulent transfer, reorganization, moratorium and similar
         laws of general applicability relating to or affecting creditors'
         rights generally and to general principles of equity.

                           c. Fletcher understands that no United States federal
         or state agency has passed on, reviewed or made any recommendation or
         endorsement of the Preferred Shares, the Common Stock, the Warrant or
         the Warrant Shares.

                           d. In making the decision to purchase the Preferred
         Shares, the Common Stock, the Warrant and the Warrant Shares in
         accordance with this Agreement, Fletcher has relied solely upon
         independent investigations made by it and not upon any representations
         made by Somatix other than those made pursuant to this Agreement.

                           e. Fletcher understands that the Preferred Shares,
         the Common Stock, the Warrant and the Warrant Shares have not been and
         will not be registered under the Securities Act and may not be
         reoffered or resold other than pursuant to such registration or an
         available exemption therefrom.

                           f. Fletcher is not a U.S. Person and is not acquiring
         the Preferred Shares, the Common Stock, the Warrant or any Warrant
         Shares for the account or benefit of any U.S. Person, and Fletcher is
         not an affiliate (within the meaning of Rule 144 under the Securities
         Act) of Somatix.

                           g. At the time the buy orders for the Preferred
         Shares and the Warrant (and any Common Stock and Warrant Shares issued
         during the applicable Restricted Period) were originated, Fletcher was
         located outside the United States.

                           h. Neither Fletcher nor any of its affiliates nor
         anyone acting on its or their behalf has engaged or will engage in any
         Directed Selling Efforts with respect to the Preferred Shares, the
         Common Stock, the Warrant or any Warrant

                                       6.
<PAGE>   7
         Shares, and all such persons understand and have compiled and will
         otherwise comply with the requirements of Regulation S.

                           i. Fletcher is purchasing the Preferred Shares, the
         Warrant and the Warrant Shares for its own account, for the purpose of
         investment and not with a view to a distribution thereof.

                           j. The transactions contemplated by this Agreement
         are not part of a plan or scheme on the part of Fletcher, any of its
         affiliates or any person acting on its or their behalf to evade the
         registration requirements of the Securities Act.

                  5. Covenants of Somatix. Somatix covenants and agrees with
Fletcher as follows:

                           a. For so long as any Preferred Share is outstanding
         or any of the Put Options have not been exercised or any portion of the
         Warrant remains outstanding, and in either case for a period of 40 days
         thereafter, Somatix will continue to be a Reporting Issuer within the
         meaning of Regulation S and will maintain the eligibility of the Common
         Stock for quotation on NASDAQ or listing on a national securities
         exchange (as defined in the Exchange Act).

                           b. For so long as any Preferred Share is outstanding
         or any of the Put Options have not been exercised or any portion of the
         Warrant remains outstanding, and in either case for a period of six
         months thereafter, Somatix will not offer or sell any Common Stock or
         any securities convertible into or exchangeable into Common Stock in
         reliance upon Regulation S.

                           c. From the date hereof and for so long as any
         Preferred Share is outstanding or any of the Put Options have not been
         exercised or any portion of the Warrant remains outstanding, and in any
         case for a period of 40 days thereafter, neither Somatix nor any of its
         affiliates nor any person acting on its or their behalf will engage in
         any Directed Selling Efforts with respect to the Preferred Shares, the
         Common Stock, the Warrant or Warrant Shares. Without limiting the
         generality of the foregoing, during the period mentioned in this
         Section 5(c), neither Somatix nor any of its affiliates nor any person
         acting on its or their behalf will issue or cause to be issued any
         press releases or similar written public statements (other than SEC
         Filings) with the exception of filings under the 1934 Act in connection
         with or relating to any of the transactions contemplated hereby.

                           d. For so long as any Preferred Share is outstanding
         or any of the Put Options have not been exercised or any portion of the
         Warrant remains outstanding, and in either case for a period of 40 days
         thereafter, Somatix will ensure that all applicable Offering
         Restrictions with respect to the Preferred Shares, the

                                       7.
<PAGE>   8
         Common Stock, the Warrant and the Warrant Shares are thoroughly
         complied with and satisfied.

                           e. Beginning on the date hereof and for so long as
         any Preferred Share is outstanding or any of the Put Options have not
         been exercised or any portion of the Warrant remains outstanding, and
         in either case for a period of 40 days thereafter (or if a registration
         statement has been filed pursuant to Section 7 hereof, during the
         effectiveness of such registration statement pursuant to such Section 
         7), Somatix will promptly notify Fletcher if (i) any event shall have
         occurred as a result of which any SEC Filing would include an untrue
         statement of a material fact or omit to state any material fact
         necessary in order to make the statements therein, in the light of the
         circumstances under which they were made, not misleading, or (ii) there
         is any public disclosure of material information regarding Somatix or
         its financial condition prospects or results of operation.

                           f. At any time after the expiration of any Restricted
         Period with respect to the Preferred Shares, the Common Stock, the
         Warrant or any Warrant Shares, upon the request of Fletcher accompanied
         by an opinion of Rogers & Wells (or such other counsel as shall be
         reasonably satisfactory to Somatix and its transfer agent (if any)) to
         the effect that the removal of the legend referred to in Section 3(o)
         would then be permitted under Regulation S and that the resale of any
         such security would not require registration under the Securities Act,
         Somatix shall, or shall cause its transfer agent (if any) to, accept
         from Fletcher the legended certificates representing such securities
         and deliver in their place unlegended certificates therefor.

                           g. Somatix will comply with the terms and conditions
         of the Put Option and the Warrant as set forth in Annex A and Annex B
         hereto, respectively (as duty amended from time to time by the parties
         hereto), and when issued to Fletcher, each Preferred Share will be
         substantially in the form of Annex C hereto.

                           h. For so long as any Preferred Share is outstanding
         or any of the Put Options have not been exercised or any portion of the
         Warrant remains outstanding, Somatix shall at all times reserve and
         keep available, free from pre-emptive rights, out of its authorized but
         unissued Common Stock, for issuance upon conversion of such Preferred
         Shares and exercise of such Put Options and Warrant, the maximum number
         of shares of Common Stock then so issuable.

                           i. For a period of one year following the date of
         this Agreement, Somatix will not offer to sell to any person any of its
         Common Stock (or any securities convertible into or exchangeable for
         such Common Stock) in reliance upon Section 4(2) of the Securities Act
         or Regulation D thereunder (an "Equity Private Placement") unless
         Somatix shall have (i) given Fletcher written notice of its intention
         to make such offer and (ii) offered to sell such securities to Fletcher
         on the

                                       8.
<PAGE>   9
         same terms and conditions as to such other person. In any event,
         Fletcher shall be entitled, but not obligated, to participate in any
         such Equity Private Placement up to the extent necessary to maintain
         Fletcher's pro rata equivalent ownership of Somatix Common Stock
         immediately prior to the closing of such Equity Private Placement
         (treating all outstanding Preferred Shares as converted as of such
         date).

                           j. Notwithstanding any other provision of this
         Agreement, for so long as any Put Option, Preferred Share or portion of
         the Warrant remains outstanding, if on any Put Option Exercise Date,
         Preferred Share Conversion Date or Warrant Exercise Date (for purposes
         of this Section 5(j), a "Limitation Date") Rule 4460(i)(1)(D) (or any
         applicable successor provision) of the National Association of
         Securities Dealers, Inc. ("Nasdaq") would require the approval of the
         stockholders of Somatix for the issuance of any additional shares of
         Common Stock to Fletcher pursuant to this Agreement, then (a) no Put
         Option shall be exercisable by Somatix and no Preferred Shares may be
         converted and the Warrant may not be exercised by Fletcher until such
         stockholder approval shall have been obtained, (b) all outstanding
         Preferred Shares shall accrue dividends from and including the
         Limitation Date at the rate of 10% per annum, payable quarterly, until
         such stockholder approval shall have been obtained or such Preferred
         Shares have been redeemed pursuant to this Section 5(j), (c) Somatix
         shall immediately take such action as may be required to obtain such
         stockholder approval as promptly as practicable, (d) if such
         stockholder approval shall not have been obtained within 60 days
         following the Limitation Date, then such number of outstanding
         Preferred Shares as are not then convertible without such stockholder
         approval as described shall be immediately redeemed for cash at the
         stated value thereof plus accrued but unpaid dividends, if any, and (e)
         if such Preferred Shares have not been so redeemed within 65 days
         following the Limitation Date, then Fletcher shall immediately be
         entitled to elect the number of directors to the Board of Directors of
         Somatix corresponding to its pro rata equivalent ownership of Somatix
         Common Stock (treating all outstanding Preferred Shares as converted as
         of such dates) in each case to the extent permitted by applicable law.

                  6. Covenants of Fletcher. Fletcher hereby covenants and agrees
with Somatix as follows:

                           a. Neither Fletcher nor any of its Affiliates nor any
         person acting on their behalf will, during the Restricted Period
         applicable to the Preferred Shares, the Common Stock, the Warrant and
         the Warrant Shares, offer or sell any of the foregoing securities (or
         create or maintain any derivative position equivalent thereto) in the
         United States, to or for the account or benefit of a U.S. Person or
         other than in accordance with Regulation S; and

                           b. After the expiration of the applicable Restricted
         Period, neither Fletcher nor any of its Affiliates nor any person
         acting on their behalf will offer, sell,

                                       9.
<PAGE>   10
         pledge or otherwise transfer the Preferred Shares, the Common Stock,
         the Warrant or any Warrant Shares (or create or maintain any derivative
         position equivalent thereto) only pursuant to registration under the
         Securities Act or an available exemption therefrom and, in any case, in
         accordance with applicable state securities laws.

                           c. Upon the effectiveness of a Registration Statement
         filed pursuant o Section 7 hereof, Fletcher and its affiliates shall
         not sell, transfer or assign and Somatix shall not be required to
         transfer on its records for the benefit of Fletcher or any of its
         transferees (i) any Warrant covered by such Registration Statement in
         units consisting of less than 30,000 Warrant Shares of (ii) any
         Preferred Shares covered by such Registration Statement in units
         consisting of less than 1,000 Preferred Shares.


                  7.       Registration Rights.

                                  (i) If, at any time after the date hereof, the
         SEC has reinterpreted Regulation S or has promulgated, or the United
         States Congress has legislated, a successor or revision to Regulation
         S, and such reinterpretation, successor provision or revision imposes a
         Restricted Period applicable to any security issued or issuable
         hereunder that is greater than that in effect on the date of this
         Agreement, or would materially impair the ability of Fletcher or any of
         its affiliates (as defined in Rule 144(a) under the Securities Act) to
         reoffer, resell or otherwise dispose of any such security as
         contemplated hereby, or requires any such reoffer, resale or other
         disposition to be registered under the Securities Act (together, a
         "Regulation S Change"), then upon the written request of Fletcher (a
         "Registration Request"), Somatix shall, as promptly as practicable
         thereafter and at its own expense, file a registration statement (the
         "Registration Statement") under the Securities Act covering the sale or
         resale of all such securities (each a "Covered Security") by Fletcher;
         provided, however, that in no event shall Somatix be required to file a
         Registration Statement or otherwise comply with a Registration Request
         to the extent that such reinterpretation, successor provision or
         revision imposes limitations on the offer, sale or other disposition of
         any Covered Security by Fletcher pursuant to Regulation S solely as a
         result of Fletcher's hedging or selling short such Covered Security or
         engaging in any other activity the effect of which is to decrease or
         limit Fletcher's investment risk with respect to such Covered Security
         in violation of such reinterpretation, successor provision or revision.
         In the event of a Regulation S Change, then prior to the effectiveness
         of such Registration Statement, Somatix shall not be entitled to
         exercise any Put Option under this Agreement. Upon the effectiveness of
         such Registration Statement (A) Somatix shall issue such securities to
         Fletcher in accordance with the terms hereof and (B) the provisions of
         Sections 3(l), (m) and (o), 4(e), (f), (g), (h), (i) and (j), 5(a),
         (b), (c) and (d), 6 (collectively, the "Specified Provisions"), 8(a)
         and (b) (to the extent applicable to the Specified Provisions), 9(b),
         (c) and (d) (to the extent applicable to the Specified

                                       10.
<PAGE>   11
         Provisions) shall thereafter be of no force and effect with respect to
         the issuance of such Covered Securities; provided, however, that, if
         such Registration Statement has not been declared effective before the
         180th day following the date of such Registration Request, then (X) any
         Put Options outstanding under this Agreement shall immediately expire
         and shall not thereafter be exercisable, and Fletcher shall have no
         further liability whatsoever with respect thereto and (Y) Somatix shall
         use its best efforts to cause such Registration Statement to become
         effective as promptly as practicable in respect of any outstanding
         portion of the securities the sale or resale of which is required to be
         so registered.

                                  (ii) In the case of the registration effected
         by Somatix pursuant to this Section 7, Somatix will use its best
         efforts to: (i) keep such registration statement effective until the
         earlier of (A) the third anniversary of the issuance of each Covered
         Security, (B) such date as all of the Covered Securities have been sold
         by Fletcher or (C) such time as all of the Covered Securities held by
         Fletcher can be sold by Fletcher or any of its affiliates (within the
         meaning of Rule 144(a) under the Securities Act) within a given
         three-month period without compliance with the registration
         requirements of the Securities Act pursuant to Rule 144 under the
         Securities Act ("Rule 144"); (ii) prepare and file with the SEC such
         amendments and supplements to the Registration Statement and the
         prospectus used in connection with the Registration Statement (as so
         amended and supplemented from time to time, the "Prospectus") as may be
         necessary to comply with the provisions of the Securities Act with
         respect to the disposition of all Covered Securities by Fletcher or any
         of its affiliates (within the meaning of Rule 144(a) under the
         Securities Act); (iii) furnish such number of Prospectuses and other
         documents incident thereto, including any amendment of or supplement to
         the Prospectus, as Fletcher from time to time may reasonably request;
         (iv) cause all Covered Securities that are Common Stock to be listed on
         each securities exchange and quoted on each quotation service on which
         similar securities issued by Somatix are then listed or quoted; (v)
         provide a transfer agent and registrar for all Covered Securities and a
         CUSIP number for all Covered Securities; (vi) otherwise use its best
         efforts to comply with all applicable rules and regulations of the SEC
         and (vii) file the documents required of Somatix and otherwise use its
         best efforts to obtain and maintain requisite blue sky clearance in all
         states specified in writing by Fletcher; provided, however, that
         Somatix shall not be required to qualify to do business or consent to
         service of process in any state in which it is not now so qualified or
         has not so consented.

                                  (iii) Somatix shall furnish to Fletcher upon
         request a reasonable number of copies of a supplement to or an
         amendment of such Prospectus as may be necessary in order to facilitate
         the public sale or other disposition of all or any of the Covered
         Securities by Fletcher or any of its affiliates (within the meaning of
         Rule 144(a) under the Securities Act), pursuant to the Registration
         Statement.

                                       11.
<PAGE>   12
                                  (iv) With a view to making available to
         Fletcher and its affiliates (within the meaning of Rule 144(a) under
         the Securities Act) the benefits of Rule 144 and Form S-3 under the
         Securities Act, Somatix covenants and agrees to: (i) make and keep
         available adequate current public information (within the meaning of
         Rule 144(c)) concerning Somatix, until the earlier of (A) the third
         anniversary of the issuance of each Covered Security or (B) such date
         as all of the Covered Securities shall have been resold by Fletcher or
         any of its affiliates (within the meaning of Rule 144(a) under the
         Securities Act); (ii) maintain its status as a Reporting Issuer and
         file with the SEC in a timely manner all reports and other documents
         required of Somatix for use of Form S-3; and (iii) furnish to Fletcher
         upon request, as long as Fletcher owns any Covered Securities, (A) a
         written statement by Somatix that it has complied with the reporting
         requirements of the Securities Act and the Exchange Act, (B) a copy of
         the most recent annual or quarterly report of Somatix, and (C) such
         other information as may be reasonably requested in order to avail
         Fletcher and its affiliates (within the meaning of Rule 144(a) under
         the Securities Act) of Rule 144 or Form S-3 with respect to such
         Covered Securities.

                                  (v) Notwithstanding anything else in this
         Section 7, if, at any time during which a Prospectus is required to be
         delivered in connection with the sale of any Covered Securities,
         Somatix determines in good faith that a development has occurred or a
         condition exists as a result of which the Registration Statement or the
         Prospectus contains a material misstatement or omission, Somatix will
         immediately notify Fletcher thereof by telephone and in writing. Upon
         receipt of such notification, Fletcher and its affiliates (within the
         meaning of Rule 144(a) under the Securities Act) will immediately
         suspend all offers and sales of any Covered Securities pursuant to the
         Registration Statement (the period of such suspension being referred to
         herein as a "Blackout Period"). In such event, Somatix will amend or
         supplement the Registration Statement as promptly as practicable and
         will take such other steps as may be required to permit sales of the
         Covered Securities, thereunder by Fletcher and its affiliates (within
         the meaning of Rule 144(a) under the Securities Act) in accordance with
         applicable federal and state securities laws. Somatix will promptly
         notify Fletcher after it has determined in good faith that such sales
         have become permissible in such manner and will promptly deliver copies
         of the Registration Statement and the Prospectus (as so amended or
         supplemented) to Fletcher in accordance with paragraph (ii) of this
         Section 7. Notwithstanding the foregoing, (i) in no circumstances shall
         Somatix impose more than two Blackout Periods of up to thirty days each
         or one Blackout Period of up to sixty days during any twelve-month
         period and (ii) in no circumstances shall any Blackout Period commence
         less than thirty days following the end of the previous Blackout
         Period.

                  Upon the commencement of a Blackout Period pursuant to this
         Section 7, Fletcher will immediately notify Somatix of any contracts to
         sell any Covered Securities (each a "Sales Contract") that Fletcher or
         any of its affiliates (within the

                                       12.
<PAGE>   13
         meaning of Rule 144(a) under the Securities Act) has entered into prior
         to the commencement of such Blackout Period and that would require
         delivery of such Covered Securities during such Blackout Period, which
         notice will contain the aggregate sale price and volume of Covered
         Securities pursuant to such Sales Contract. Upon receipt of such
         notice, Somatix will immediately notify Fletcher of its election either
         (i) to terminate the Blackout Period and, as promptly as practicable,
         amend or supplement the Registration Statement or the Prospectus in
         order to correct the material misstatement or omission and deliver to
         Fletcher copies of such amended or supplemented Registration Statement
         and Prospectus in accordance with paragraph (ii) of this Section 7 or
         (ii) to continue the Blackout Period in accordance with this paragraph.
         If Somatix elects to continue the Blackout Period, and Fletcher or any
         of its affiliates (within the meaning of Rule 144(a) under the
         Securities Act) is therefore unable to consummate the sale of Covered
         Securities pursuant to the Sales Contract (such unsold Covered
         Securities being hereinafter referred to herein as the "Unsold
         Securities"), Somatix will promptly indemnify each Fletcher Indemnified
         Party (as such term is defined in Section 12(a) below) against any
         Proceeding (as such term is defined in Section 12(a) below) that each
         Fletcher Indemnified Party may incur arising out of or in connection
         with Fletcher's breach or alleged breach of any such Sales Contract,
         and Somatix shall reimburse each Fletcher Indemnified Party for any
         reasonable costs or expenses (including reasonable legal fees) incurred
         by such party in investigating or defending any such Proceeding
         (collectively, the "Indemnification Amount"); provided, however, that
         each Fletcher Indemnified Party shall take all actions reasonably
         necessary or appropriate to mitigate such Indemnification Amount; and
         provided, further, however, that the Indemnification Amount shall be
         reduced by an amount equal to the number of Unsold Securities
         multiplied by the difference between (x) the actual per share price
         received by Fletcher or any of its affiliates (within the meaning of
         Rule 144(a) under the Securities Act) upon the sale of the Unsold
         Securities (if such sale occurs within three Trading Days of the end of
         the Blackout Period) or the closing sale price of the Common Stock on
         NASDAQ or other national securities exchange on which the Common Stock
         is then listed on the third Trading Day after the end of the Blackout
         Period (if the Unsold Securities are not sold by Fletcher or any of its
         affiliates (within the meaning of Rule 144(a) under the Securities Act)
         within three Trading Days of the end of the Blackout Period), and (y)
         the per share sale price for the Unsold Securities provided in the
         Sales Contract. As used herein, the term "Trading Day" means any day on
         which Somatix's Common Stock is quoted on NASDAQ.

                  8. Conditions Precedent to Fletcher's Obligations. The
obligations of Fletcher hereunder are subject to the performance by Somatix of
its obligations hereunder and to the satisfaction of the following additional
conditions precedent:

                           a. The representations and warranties made by Somatix
         in this Agreement shall, unless expressly waived in writing by
         Fletcher, be true and correct as of the date hereof, on the Closing
         Date, on each Preferred Share Conversion

                                       13.
<PAGE>   14
         Date, on each Put Option Exercise Date (as defined in Annex A hereto)
         and on each Warrant Exercise Date (as defined in Annex B hereto), and
         Fletcher shall have received on each such date a certificate of the
         Chief Executive Officer and the Chief Financial Officer of Somatix
         dated such date and to such effect.

                           b. On the Closing Date, on each Preferred Share
         Conversion Date in respect of the issuance of at least 75,000 shares of
         Common Stock, on each Put Option Exercise Date (as defined in Annex A
         hereto) and on each Warrant Exercise Date (as defined in Annex B
         hereto) in respect of the issuance of at least 75,000 Warrant Shares,
         Somatix shall have delivered to Fletcher an opinion of counsel
         reasonably satisfactory to Fletcher, dated the date of delivery,
         confirming in substance the matters covered in paragraphs (a), (b),
         (c), (d), (e), (f), (g), (h) and (i) of Section 3 hereof; provided,
         however, that no such opinion delivered in respect of any Preferred
         Share Conversion Date or Warrant Exercise Date shall be required to
         cover the matters set forth in paragraph (i) of Section 3 hereof.

                           c. On any Put Option Exercise Date, Fletcher's
         obligation to purchase any Preferred Share hereunder shall be subject
         to the additional condition that during the five Business Days (as
         defined below) immediately preceding such Put Option Exercise Date,
         Somatix shall not have made any SEC Filing or issued any press release
         describing and shall not be aware of any material adverse change, or
         any development that might result in any material adverse changes in
         the condition, financial or otherwise, or in the business affairs or
         business prospects of Somatix, whether or not arising in the ordinary
         course of business; provided, however, that if on any Put Option
         Exercise Date such condition has not been satisfied, such Put Option
         Exercise Date and each subsequent Put Option Exercise Date and the Put
         Option Termination Date hereunder shall be postponed by five Business
         Days for all purposes of this Subscription Agreement as if such fifth
         Business Day had originally been specified as such Put Option Exercise
         Date or Put Option Termination Date, as the case may be; and provided,
         further, however, that if, on such fifth Business Day, such condition
         has not been satisfied, there shall be no further postponement of such
         Put Option Exercise Date.

                  As used herein the term "Business Day" means any day on which
banks in The City of New York are open for business.

                  9. Conditions Precedent to Somatix's Obligations. The
obligations of Somatix hereunder are subject to the performance by Fletcher of
its obligations hereunder and to the satisfaction of the following additional
conditions precedent:

                           a. The representations and warranties made by
         Fletcher in this Agreement shall, unless expressly waived in writing by
         Somatix, be true and correct as of the date hereof, on the Closing
         Date, on each Preferred Share Conversion Date, on each Put Option
         Exercise Date and on each Warrant Exercise Date, and

                                       14.
<PAGE>   15
         Somatix shall have received on each such date a certificate of the
         Chief Financial Officer of Fletcher dated such date and to such effect.

                           b. On the Closing Date, Fletcher shall have delivered
         to Somatix a legal opinion of Rogers & Wells, counsel to Fletcher,
         dated the date of delivery stating that:

                                  (i)       Fletcher is not a U.S. Person; and

                                 (ii)       the offer and sale of the Series B-1
                                            Preferred Shares and the Warrant by
                                            Somatix to Fletcher on the Closing
                                            Date does not require registration
                                            under the Securities Act.

                           c. On each Preferred Share Conversion Date, Fletcher
         shall have delivered to Somatix a legal opinion of Rogers & Wells,
         counsel to Fletcher, dated the date of delivery, that:

                                  (i)       Fletcher is not a U.S. Person; and

                                 (ii)       the issuance of the Common Stock by
                                            Somatix to Fletcher on such date
                                            does not require registration under
                                            the Securities Act.

                           d. On each Warrant Exercise Date, Fletcher shall have
         delivered to Somatix a legal opinion of Rogers & Wells, counsel to
         Fletcher, dated the date of delivery, stating that:

                                  (i)       Fletcher is not a U.S. Person, and
                                            the Warrant is not being exercised
                                            on behalf of a U.S. Person; and

                                 (ii)       the issuances of the Warrant Shares
                                            by Somatix to Fletcher on such date
                                            does not require registration under
                                            the Securities Act.

                           e. On the date of any transfer by Fletcher of any
         Preferred Share or the Warrant or any Common Stock during the
         applicable Restricted Period, Fletcher shall have delivered to Somatix
         or its transfer agent, as the case may be, a legal opinion of Rogers &
         Wells, dated the date of such transfer, stating that such transfer
         complies with the requirements of Regulation S.

                  10. Fees and Expenses. Each of Fletcher and Somatix agrees to
pay its own expenses incident to the performance of its obligations hereunder,
including, but not limited to, the fees, expenses and disbursements of such
party's counsel.


                                       15.
<PAGE>   16
                  11.      Non-Performance.

                           a. If, on the Closing Date or any Warrant Exercise
         Date (as defined in Annex B hereto), Somatix shall fail to deliver the
         Warrant Shares, the Preferred Shares or Common Stock to Fletcher
         required to be delivered pursuant to this Agreement for any reason
         other than the failure of any condition precedent to Somatix's
         obligations hereunder or the failure by Fletcher to comply with its
         obligations hereunder, then Somatix shall:

                                    (1) hold Fletcher harmless against any loss,
                  claim or damage arising from or as a result of such failure by
                  Somatix; and

                                    (2) reimburse Fletcher for all of its
                  out-of-pocket expenses, including fees and disbursements of
                  its counsel, incurred by Fletcher in connection with this
                  Agreement and the transactions contemplated herein;

         provided, however, that Somatix shall then be under no further
         liability to Fletcher except as provided in this Section 11 and
         Section 12 hereof.

                           b. If, on the Closing Date or any Put Option Exercise
         Date, Fletcher shall fail to purchase the Warrant, the Preferred Shares
         or any Common Stock required to be purchased pursuant to this Agreement
         for any reason other than the failure of any condition precedent to
         Fletcher's obligations hereunder or the failure by Somatix to comply
         with its obligations hereunder, then Fletcher shall:

                                    (1) hold Somatix harmless against any damage
                  arising from or as a result of such failure by Fletcher;

                                    (2) reimburse Somatix for all of its
                  out-of-pocket expenses, including fees and disbursements of
                  its counsel, incurred by Somatix in connection with this
                  Agreement and the transactions contemplated herein; and

                                    (3) surrender to Somatix for cancellation
                  any portion of the Warrant not exercise prior to the date of
                  such default by Fletcher;

         provided, however, that Fletcher shall then be under no further
         liability to Somatix except as provided in this Section 11 and Section 
         12 hereof.

                  12.      Indemnification.

                           a. Indemnification of Fletcher. Somatix hereby agrees
         to indemnify Fletcher and each of its officers, directors, employees,
         agents and affiliates and each person that controls (within the meaning
         of Section 20 of the Securities Exchange

                                       16.
<PAGE>   17
         Act of 1934, as amended) any of the foregoing persons (each a "Fletcher
         Indemnified Party") against any claim, demand, action, liability,
         damages, loss, cost or expense (including, without limitation,
         reasonable legal fees) (a "Proceeding"), that it may incur in
         connection with any of the transactions contemplated hereby arising out
         of or based upon:

                                    (1) any untrue or alleged untrue statement
                  of a material fact by Somatix or any of its affiliates or any
                  person acting on its or their behalf or omission or alleged
                  omission by Somatix or any of its affiliates or any person
                  acting on its or their behalf to state any material fact
                  necessary in order to make the statements, in the light of the
                  circumstances under which they were made, not misleading;

                                    (2) any of the representations or warranties
                  made by Somatix herein being untrue or incorrect; and

                                    (3) any breach or non-performance by Somatix
                  of any of its covenants, agreements or obligations under this
                  Agreement;

         and Somatix hereby agrees to reimburse each Fletcher Indemnified Party
         for any reasonable legal or other expenses incurred by such Fletcher
         Indemnified Party in investigating or defending any such Proceeding;

         provided, however, that the foregoing indemnity shall not apply to any
         Proceeding to the extent that it arises out of or is based upon the
         gross negligence of Fletcher in connection therewith.

                           b. Indemnification by Somatix. Fletcher hereby agrees
         to indemnify Somatix and each of its officers, directors, employees,
         agents and affiliates and each person that controls (within the meaning
         of Section 20 of the Securities Exchange Act of 1934, as amended) any
         of the foregoing persons (each a "Somatix Indemnified Party") against
         any Proceeding, that it may incur in connection with any of the
         transactions contemplated hereby arising out of or based upon:

                                    (1) any untrue or alleged untrue statement
                  of a material fact by Fletcher or any of its affiliates or any
                  person acting on its or their behalf or omission or alleged
                  omission by Fletcher or any of its affiliates or any person
                  acting on its or their behalf to state any material fact
                  necessary in order to make the statements, in the light of the
                  circumstances under which they were made, not misleading;

                                    (2) any of the representations or warranties
                  made by Fletcher herein being untrue or incorrect; and


                                       17.
<PAGE>   18
                                    (3) any breach or non-performance by
                  Fletcher of any of its covenants, agreements or obligations
                  under this Agreement;

         and Fletcher hereby agrees to reimburse each Somatix Indemnified Party
         for any reasonable legal or other expenses incurred by such Somatix
         Indemnified Party in investigating or defending any such Proceeding;

         provided, however, that the foregoing indemnity shall not apply to any
         Proceeding to the extent that it arises out of or is based upon the
         gross negligence of Somatix in connection therewith.

                           c.       Conduct of Claims.

                                    (1) Whenever a claim for indemnification
                  shall arise under this Section , the party seeking
                  indemnification (the "Indemnified Party"), shall notify the
                  party from whom such indemnification is sought (the
                  "Indemnifying Party") in writing of the Proceeding and the
                  facts constituting the basis for such claim in reasonable
                  detail;

                                    (2) Upon delivery of such notice, such
                  Indemnified Party shall have a duty to take all reasonable
                  steps to mitigate any losses, liabilities, costs, charges and
                  expenses relating to any such Proceeding;

                                    (3) Such Indemnifying Party shall have the
                  right to retain the counsel of its choice in connection with
                  such Proceeding and to participate at its own expense in the
                  defense of any such Proceeding; provided, however, that
                  counsel to the Indemnifying Party shall not (except with the
                  consent of the relevant Indemnified Party) also be counsel to
                  such Indemnified Party. In no event shall the Indemnifying
                  Party be liable for fees and expenses of more than one counsel
                  (in addition to any local counsel) separate from its own
                  counsel for all Indemnified Parties in connection with any one
                  action or separate but similar or related actions in the same
                  jurisdiction arising out of the same general allegations or
                  circumstances; and

                                    (4) No Indemnifying Party shall, without the
                  prior written consent to the Indemnified Parties (which
                  consent shall not be unreasonably withheld), settle or
                  compromise or consent to the entry of any judgment with
                  respect to any litigation, or any investigation or proceeding
                  by any governmental agency or body, commenced or threatened,
                  or any claim whatsoever in respect of which indemnification
                  could be sought under this Section unless such settlement,
                  compromise or consent (A) includes an unconditional release of
                  each Indemnified Party from all liability arising out of such
                  litigation, investigation, proceeding or claim and (B) does
                  not include

                                       18.
<PAGE>   19
                  a statement as to or an admission of fault, culpability or a 
                  failure to act by or on behalf of any Indemnified Party.

                  13. Survival of the Representations, Warranties, etc. The
respective representations, warranties, and agreements made herein by or on
behalf of the parties hereto shall remain in full force and effect, regardless
of any investigation made by or on behalf of the other party to this Agreement
or any officer, director or employee of, or person controlling or under common
control with, such party and will survive delivery of and payment for the
Preferred Shares, the Warrant and any Common Stock issuable hereunder.

                  14. Notices. All communications hereunder shall be in writing,
and

                           a. if sent to Fletcher, shall be delivered by hand, 
         sent by registered mail or transmitted and confirmed by telecopy to 
         Fletcher at:

                           Fletcher International Limited
                           c/o Midland Bank Trust Corporation (Cayman) Limited
                           P.O. Box 1109, Mary Street
                           Grand Cayman, Cayman Islands
                           British West Indies
                           Telephone:       (809) 949-7755
                           Facsimile:       (809) 949-7634

                           with a copy to:

                           Rogers & Wells
                           200 Park Avenue
                           New York, NY 10166
                           Attention:  Sara Hanks
                           Telephone:       (212) 878-8000
                           Facsimile:       (212) 878-8375

                           b. if sent to Somatix, shall be delivered by hand,
         sent by registered mail or transmitted and confirmed by telecopy to
         Somatix at:

                           Somatix Therapy Corporation
                           850 Marina Village Parkway
                           Alameda, CA 94501
                           Attention:  Edward Lanphier
                           Telephone:       (510) 748-3000
                           Facsimile:       (510) 814-8838


                                       19.
<PAGE>   20
                           with a copy to:

                           Brobeck, Phleger & Harrison LLP
                           Two Embarcadero Place
                           2200 Geng Road
                           Palo Alto, CA 94303
                           Attention:  J. Stephan Dolezalek
                           Telephone:       (415) 496-2842
                           Facsimile:       (415) 496-2736

                  15.      Miscellaneous.

                           a. This Agreement may be executed in one or more
counterparts and it is not necessary that signatures of all parties appear on
the same counterpart, but such counterparts together shall constitute but one
and the same agreement.

                           b. This Agreement shall inure to the benefit of and
be binding upon the parties hereto, their respective successors and, with
respect to Section 11 hereof, their respective officers, directors and
affiliates, and no other person shall have any right or obligation hereunder.

                           c. This Agreement shall be governed by, and construed
in accordance with, the internal laws of the State of New York, and each of the
parties hereto hereby submits to the non-exclusive jurisdiction of any State or
Federal court in the Borough of Manhattan in the City and State of New York and
any court hearing any appeal therefrom, over any suit, action or proceeding
against it arising out of or based upon this Agreement (a "Related Proceeding").
Each of the parties hereto hereby waives any objection to any Related Proceeding
in such courts whether on the grounds of venue, residence or domicile or on the
ground that the Related Proceeding has been brought in an inconvenient forum.

                           d. The provisions of this Agreement are severable,
and if any clause or provision hereof shall be held invalid, illegal or
unenforceable in whole or in part, such invalidity or unenforceability shall not
in any manner affect any other clause or provision of this Agreement.

                           e. The headings of the sections of this document have
been inserted for convenience of reference only and shall not be deemed to be a
part of this Agreement.

                  16. Time of Essence. Time shall be of the essence in this
Agreement.



                                       20.
<PAGE>   21
                  IN WITNESS WHEREOF, the parties hereto have duly executed and
delivered this Agreement, all as of the day and year first above written.

                                 SOMATIX THERAPY CORPORATION


                                 By:
                                 Name:
                                 Title:


                                 FLETCHER INTERNATIONAL LIMITED


                                 By:
                                 Name:
                                 Title:

                                       21.
<PAGE>   22
                                                                         ANNEX A


                              TERMS OF PUT OPTIONS
                    GRANTED BY FLETCHER INTERNATIONAL LIMITED
                         TO SOMATIX THERAPY CORPORATION



                  The Put Options granted by Fletcher International Limited
("Fletcher") to Somatix, Therapy Corporation ("Somatix") pursuant to the
Subscription Agreement dated September 24, 1996 between Fletcher and Somatix
(the "Subscription Agreement"), including any additional Put Options granted
pursuant to Paragraph 4 hereof, shall have the terms and conditions set forth
below.

                  This Annex A forms a part of the Subscription Agreement, and
the following terms and conditions are subject to the representations,
warranties and agreements and further provisions contained in the Subscription
Agreement. Unless otherwise defined herein, capitalized terms used herein shall
have the meanings set forth in the Subscription Agreement.

                  1. Option to Sell. Each of the Put Options granted pursuant to
the Subscription Agreement shall entitle Somatix to sell to Fletcher and
obligate Fletcher to purchase from Somatix, upon the terms and conditions set
forth in the Subscription Agreement and herein, $5,000,000 stated value of
Somatix's Series B Convertible Preferred Stock, stated value $150.00 per share,
having the terms and conditions set forth in Annex C to the Subscription
Agreement (the "Preferred Stock"), subject to adjustment as provided in
Paragraph 4 hereof (the "Put Option Amount"), at the price per share (the "Put
Option Price") equal to such stated value.

                  2. Exercisable by Somatix. The Put Options shall be
exercisable only by Somatix and only upon the terms and conditions and subject
to the limitations set forth in the Subscription Agreement and herein, and the
Put Options may not be transferred, sold, pledged, assigned or otherwise
disposed of to any person.

                  3. Certain Restrictions on Exercise. The Put Options shall be
exercisable on any Trading Day (each, a "Put Option Exercise Date") from and
including March 25, 1997 to and including September 25, 1999 (the "Put Option
Termination Date");

provided, however, that, subject to the provision of Section 7 of the
Subscription Agreement, not more than one Put Option shall be exercisable within
any six-month period; and provided further, however, that no Put Option shall be
exercisable unless Somatix shall have delivered to Fletcher on the relevant Put
Option Exercise Date a certificate of the Chief Executive Officer and Chief
Financial Officer of Somatix, dated such Put Option Exercise
<PAGE>   23
Date, confirming that each of the representations and warranties made by Somatix
in the Subscription Agreement are true and correct as of such Put Option
Exercise Date.

                  Notwithstanding anything to the contrary contained herein or
in the Subscription Agreement, the maximum amount for which any Put Option may
be exercised shall not exceed X (the "Annual Limit") or Y (the "Cumulative
Limit"), each as defined in the following equations:

                  X = ((0.099 * A) - B - E - (C/D)) * D
                  Y = ((0.199 * F) - I - (C/H) - G) * D

                  where:

                  A   =    the total number of shares of Common Stock then
                           outstanding

                  B   =    the maximum number of Warrant Shares issuable
                           within 60 days from the date of the calculation
                 
                  C   =    the face value of the Preferred Stock then issued
                           but not converted

                  D   =    the average of the daily volume weighted average
                           prices for Somatix Common Stock for the 40 Trading
                           Days prior to the Put Option Exercise Date

                  E   =    the total number of shares of Common Stock issued
                           to Fletcher within the last 12 months

                  F   =    the total number of shares of Common Stock
                           outstanding on the Agreement Date

                  G   =    the total number of shares of Common Stock then
                           issued to Fletcher pursuant to the Agreement

                  H   =    the average of the daily volume weighted average
                           prices for Somatix Common Stock for the 40 Trading
                           Days prior to the Put Option Exercise Date

                  I   =    650,000 for any date prior to March 25, 1997; and
                           the maximum number of unexercised Warrant Shares for
                           any date thereafter

                  4. Additional Put Options. Fletcher shall have the right (on
the business day following any Put Option Exercise Date) to reduce the
applicable Put Option Amount to a minimum of the closing price of the Shares on
the Exercise Date as reported by NASDAQ (the "Price") multiplied by the lower of
(a) ten times the average daily volume for Somatix Common Stock as reported by
NASDAQ during the forty Trading Days prior to the Put Option Exercise Date, or
(b) five percent of the then outstanding Common Stock, or (c) unless stockholder
approval has been obtained as described in Section 5(j) of the Purchase
Agreement, the amount represented by the equation: Y / 2 (as defined in
Paragraph 3 hereof). The excess, if any, of the original Put Option Amount over
such reduced Put Option Amount as defined above shall be referred to herein as
the "Remaining Amount." If Fletcher does reduce the Put Option Amount, Somatix
will receive an additional Put Option of stated value equal to the aggregate
Remaining Amount; provided

                                       2.
<PAGE>   24
that no Put Option shall be exercised after the Put Option Termination Date and
not more than one Put Option may be exercised during any six-month period.

                  5. Certain Exercise Procedures. On any Put Option Exercise
Date, Somatix may exercise a Put Option by delivering notice thereof to Fletcher
in accordance with the Subscription Agreement. On the second Business Day
following such Put Option Exercise Date, Somatix shall issue to Fletcher the
number of shares of Preferred Stock equal to the Put Option Amount calculated as
provided herein against payment by Fletcher of the Put Option Price in New York
Clearing House (next day) funds in accordance with the Subscription Agreement.

                  6. Expiration and Termination. Any Put Option (including any
additional Put Options granted pursuant to Paragraph 4 hereof) that has not been
exercised by Somatix in accordance with the terms of the Subscription Agreement
and hereof by 5:00 p.m. (New York time) on the Put Option Termination Date shall
immediately expire and not thereafter be exercisable, and Fletcher shall have no
further obligation whatsoever with respect to any such Put Option.


                                       3.
<PAGE>   25
                                                                         ANNEX B

                          [Form of Warrant Certificate]

         The Warrant represented by this certificate was issued on September 25,
         1996 (the "Original Issue Date") pursuant to the Subscription Agreement
         dated September 24, 1996 between Somatix Therapy Corporation and
         Fletcher International Limited. Neither the Warrant represented by this
         certificate nor the securities issuable upon exercise hereof have been
         registered under the Securities Act of 1933, as amended (the "Act") and
         the Warrants may not be exercised by a U.S. Person unless pursuant to a
         transaction registered under the Act or exempt from such Registration.
         The Warrant represented hereby has been sold in reliance on the
         exemption from registration provided by Regulation S under the Act
         ("Regulation S"). Prior to the expiration of a 40- day restricted
         period beginning on the Original Issue Date (the "Restricted Period"),
         the Warrant represented by this certificate may not be exercised,
         offered or sold, directly or indirectly, within the United States (as
         defined in Regulation S under the Act), to a U.S. Person (as defined in
         Regulation S under the Act) or for the account or benefit of a U.S.
         Person. Neither Somatix Therapy Corporation nor its transfer agent
         shall be obligated to remove this legend unless it shall have received
         an opinion of counsel stating that such removal complies with the
         requirements of Regulation S.


                             650,000 WARRANT SHARES


                               WARRANT CERTIFICATE

                           SOMATIX THERAPY CORPORATION

                  This Warrant Certificate certifies that FLETCHER INTERNATIONAL
LIMITED, or registered assigns, is the registered holder of one Warrant (the
"Warrant") expiring on the Termination Date (as defined below) to purchase up to
650,000 shares (the "Maximum Warrant Amount") of common stock, par value $0.01
per share (the "Common Stock"), of Somatix Therapy Corporation, a Delaware
corporation (the "Issuer"), at the Exercise Price (as defined below); provided,
however, that if, on March 24, 1997, the sum of (i) the aggregate stated value
of the Preferred Shares then owned by Fletcher plus (ii) the aggregate
equivalent Preferred Share stated value of all Common Stock (as defined below)
then owned by Fletcher (calculated using the volume-weighted average of the
conversion ratios for the period from the Closing Date through March 24, 1997 is
less than or equal to $2,500,000, then the Maximum Warrant Amount shall be an
amount equal to:
<PAGE>   26
                                                  5
                           650,000  *    --------------------
                                             (3 * X) - 4

                           where X means the average of the daily
                           volume-weighted average prices of Somatix Common
                           Stock for the period and including September 24, 1996
                           to but excluding March 24, 1997; provided, however,
                           that the Maximum Warrant Amount shall never be
                           greater than 650,000 and shall never be lower than
                           195,000.

                  The Warrant represented hereby was issued on September 25,
1996 (the "Original Issue Date") pursuant to the Subscription Agreement dated
September 24, 1996 (the "Subscription Agreement"), between the Issuer and
Fletcher International Limited ("Fletcher"), and is subject to the terms and
conditions thereof. Unless otherwise defined herein, capitalized terms used
herein shall have the meanings set forth in the Subscription Agreement. A copy
of the Subscription Agreement may be obtained by the registered holder hereof
upon written request to the Issuer.

                  The Warrant represented hereby may be exercised on any
Business Day (a "Warrant Exercise Date") from and including March 24, 1998 to
and including September 24, 2002 (the "Termination Date"). The Warrant entitles
the registered holder hereof to receive from the Issuer upon exercise up to the
number of Warrant Shares set forth on the face hereof upon surrender of this
Warrant Certificate as provided on the reverse hereof and payment of the
Exercise Price defined below (the "Exercise Price") (plus transfer taxes, if
applicable) to the Issuer in cash or by certified or official bank check.

                  The Exercise Price per Warrant Share shall be $5.533.

                  The Warrant represented hereby shall have the following
additional terms:

     1.   The Warrant represented hereby may be exercised upon surrender of this
          Warrant Certificate by the registered holder hereof to the Issuer at
          its principal office on any Exercise Date with the Exercise Notice
          attached hereto (an "Exercise Notice") duly completed and signed by
          the registered holder hereof and upon tender by such holder to the
          Issuer of the Exercise Price (plus transfer taxes, if applicable) for
          the total number of Warrant Shares in respect of which such Warrant is
          then exercised. The Warrant represented hereby shall be exercisable
          only in the minimum amount of 30,000 Warrant Shares and integral
          multiples of 30,000 Warrant Shares in excess thereof (or such lesser
          amount as shall constitute the full amount of this Warrant).

     2.   On the Business Day following an Exercise Date (an "Issue Date") the
          Issuer shall issue and cause to be delivered to the registered holder
          hereof at such address as such holder shall specify in the Exercise
          Notice a certificate or certificates for the number of full Warrant
          Shares issuable upon the exercise of such Warrant, registered in such
          holder's name, together with cash (if any) as provided in paragraph 4.
          Such

                                       2.
<PAGE>   27
          certificate or certificates shall be deemed to have been issued and
          any person so designated to be named therein shall be deemed to have
          become a holder of record of such Warrant Shares as of such Exercise
          Date.

3.       If on such Issue Date the number of Warrant Shares to be delivered
         shall be less than the total number of Warrant Shares deliverable
         hereunder, there shall be issued to the holder hereof or his assignee
         on such Issue Date a new warrant certificate substantially identical to
         this Warrant Certificate, except that such new warrant certificate
         shall evidence the right to purchase the number of Warrant Shares equal
         to (x) the total number of Warrant Shares deliverable hereunder less
         (y) the number of Warrant Shares so delivered.

4.       The Issuer shall not be required to issue fractional Warrant Shares on
         the exercise of the Warrant represented hereby. The number of full
         Warrant Shares which shall be issuable upon the exercise of the Warrant
         shall be computed on the basis of the aggregate number of Warrant
         Shares purchasable on exercise of the Warrant so presented. If any
         fraction of a Warrant Share would, except for the provisions of this
         paragraph 4, be issuable on the exercise of the Warrant, the Issuer
         shall pay an amount in cash equal to the closing sale price of the
         Common Stock per Warrant Share on the day immediately preceding the
         date the Warrant is presented for exercise, multiplied by such
         fraction.

5.       For so long as the Warrant represented hereby has not been exercised in
         full, the Issuer shall at all times reserve and keep available, free
         from pre-emptive rights, out of its authorized but unissued Common
         Stock, for issuance upon exercise of the Warrant represented hereby,
         the maximum number of Common Stock then so issuable (as adjusted from
         time to time pursuant to paragraph 10).

6.       By accepting delivery of this Warrant Certificate, the registered
         holder hereof covenants and agrees with the Issuer not to exercise or
         transfer the Warrant represented hereby except in compliance with the
         terms of the Subscription Agreement and this Warrant Certificate.

7.       By accepting delivery of this Warrant Certificate, the registered
         holder hereof covenants and agrees with the Issuer that no Warrant may
         be sold, assigned, conveyanced, pledged, hypothecated or in any other
         manner disposed of or transferred unless and until such holder shall
         deliver to the Issuer (i) written notice of such transfer and of the
         name and address of the transferee has been received by the Issuer;
         (ii) a written agreement of the transferee to comply with the terms of
         the Subscription Agreement and this Warrant Certificate and (iii) in
         the case of a transfer hereof prior to the expiration of the Restricted
         Period (if any) specified on the first page hereof, an opinion of
         counsel stating that such transferee is not a "U.S. Person" as defined
         in Regulation S under the Securities Act of 1933, as amended, and that
         such transfer is otherwise exempt from any registration requirements.

                                       3.
<PAGE>   28
8.       The Issuer will pay all documentary stamp taxes (if any) attributable
         to the issuance of Warrant Shares upon the exercise of the Warrant by
         the registered holder hereof; provided, however, that the Issuer shall
         not be required to pay any tax or taxes which may be payable in respect
         of any transfer involved in the registration of the Warrant Certificate
         or any certificates for Warrant Shares in a name other than that of the
         registered holder of the Warrant Certificate surrendered upon the
         exercise of a Warrant, and the Issuer shall not be required to issue or
         deliver the Warrant Certificate or certificates for Warrant Shares
         unless or until the person or persons requesting the issuance thereof
         shall have paid to the Issuer the amount of such tax or shall have
         established to the satisfaction of the Issuer that such tax has been
         paid.

9.       In case this Warrant Certificate shall be mutilated, lost, stolen or
         destroyed, the Issuer may in its discretion issue in exchange and
         substitution for and upon cancellation of the mutilated Warrant
         Certificate, or in lieu of and substitution for the Warrant Certificate
         lost, stolen or destroyed, a new Warrant Certificate of like tenor, but
         only upon receipt of evidence reasonably satisfactory to the Issuer of
         such loss, theft or destruction of such Warrant Certificate and
         indemnity, if requested, satisfactory to it. Applicants for a
         substitute Warrant Certificate shall also comply with such other
         reasonable regulations and pay such other reasonable charges as the
         Issuer may prescribe.

10.      The number of Warrant Shares issuable upon the exercise of the Warrant
         (the "Exercise Rate"), the Maximum Warrant Amount, and the terms and
         conditions of the Warrant are subject to adjustment by the Issuer, in
         consultation with the holder hereof, from time to time as follows:

         (a)      If the Issuer:

                  1.       subdivides its outstanding shares of Common Stock
                           into a greater number of shares;

                  2.       combines its outstanding shares of Common Stock into
                           a smaller number of shares; or

                  3.       issues by reclassification of its Common Stock any
                           shares of its Capital Stock (as defined below);

                  then the Exercise Rate in effect immediately prior to such
                  action shall be adjusted so that the registered holder hereof
                  shall thereafter be entitled to receive upon exercise the
                  number of shares of Common Stock or other Capital Stock of the
                  Issuer which such holder would have owned immediately
                  following such action if such holder had exercised the Warrant
                  immediately prior to such action.


                                       4.
<PAGE>   29
                  As used herein, the term "Capital Stock" means, with respect
                  to any corporation, any and all shares, interests, rights to
                  purchase, warrants, options, participations or other
                  equivalents of or interests (however designated) in stock
                  issued by that corporation.

                  Such adjustment shall become effective simultaneously with the
                  effective date of any subdivision, combination or
                  reclassification.

                  If, after an adjustment, the registered holder hereof would
                  receive upon exercise shares of two or more classes of Capital
                  Stock of the Issuer, the Exercise Rate shall thereafter be
                  subject to adjustment upon the occurrence of an action taken
                  with respect to each such class of Capital Stock as is
                  contemplated hereby with respect to the Common Stock, on terms
                  comparable to those applicable to Common Stock hereunder.

         (b)      Whenever the Exercise Rate is adjusted, the Issuer shall
                  provide the notices required by paragraph 12 hereof.

         (c)      If:

                  1.       the Issuer takes any action that would require an
                           adjustment in the Exercise Rate pursuant to
                           subparagraph (a) above; or

                  2.       there is a liquidation or dissolution of the Issuer;

                  then the Issuer shall mail to the registered holder hereof a
                  notice stating the proposed effective date of a subdivision,
                  combination, reclassification, consolidation, merger,
                  transfer, lease, liquidation or dissolution, as the case may
                  be. The Issuer shall mail the notice at least 15 days before
                  such date.

         (d)      The Issuer covenants and agrees with the registered holder
                  hereof not to consolidate or merge with or into, or transfer
                  or lease all or substantially all its assets to, any person
                  unless, at the option of the registered holder hereof, either:

                  1.       on any date prior to the effective date of such
                           consolidation, merger, transfer or lease (the
                           "Redemption Date"), the Issuer shall have redeemed
                           the Warrant represented hereby by paying to such
                           holder, upon surrender of this Warrant Certificate, a
                           cash payment equal to the Black-Scholes value of the
                           Warrant represented hereby, computed as of such
                           Redemption Date; or

                  2.       (a) such person shall expressly assume in writing all
                           of the obligations of the Issuer under the
                           Subscription Agreement and

                                       5.
<PAGE>   30
                                    hereunder and deliver notice thereof to the 
                                    registered holder hereof; and

                           (b)      upon consummation of such transaction, the
                                    Warrant shall automatically become
                                    exercisable for the kind and amount of
                                    securities, cash or other assets that the
                                    registered holder hereof would have owned
                                    immediately after the consolidation, merger,
                                    transfer or lease if such holder had
                                    exercised the Warrant immediately before the
                                    effective date of such transaction.

          (e)      After an adjustment to the Exercise Rate hereunder, any
                   subsequent event requiring an adjustment hereunder shall
                   cause an adjustment to the Exercise Rate as so adjusted.

     11.  Upon the issuance of any stock dividend or distribution of Common
          Stock pro rata to all holders of Common Stock, the registered holder
          hereof on the record date for such distribution shall be entitled to
          receive such dividend or distribution on the same terms as the holders
          of Common Stock upon exercise hereof.

     12.  Upon any adjustment of the Exercise Rate pursuant to paragraph 10, the
          Issuer shall promptly thereafter but in any event within 15 days
          following such adjustment (i) cause to be delivered to the registered
          holder hereof a certificate of its Chief Financial Officer setting
          forth the Exercise Rate after such adjustment and setting forth in
          reasonable detail the method of calculation and the facts upon which
          such calculations are based, which certificate shall be conclusive
          evidence of the correctness of the matters set forth therein, and (ii)
          cause to be delivered to the registered holder hereof at his or her
          address appearing on the Warrant Register written notice of such
          adjustments by first-class mail, postage prepaid. Where appropriate,
          such notice may be given in advance and included as part of the notice
          required to be mailed under the other provisions of this paragraph 12.

     In case:

          (a)      the Issuer shall authorize the issuance to all holders of
                   shares of Common Stock of rights, options or warrants to
                   subscribe for or purchase shares of Common Stock or of any
                   other subscription rights or warrants; or

          (b)      of any consolidation or merger to which the Issuer is a party
                   and for which approval of any shareholders of the Issuer is
                   required, or of the conveyance or transfer of the properties
                   and assets of the Issuer substantially as an entirety, or of
                   any reclassification or change of Common Stock issuable upon
                   exercise of the Warrant (other than a change in par value, or
                   from par value to no par value, or from no par value to par
                   value, or as a result of a

                                       6.
<PAGE>   31
               subdivision or combination), or of a tender offer or exchange 
               offer for shares of Common Stock; or

          (c)  of the voluntary or involuntary dissolution, liquidation or
               winding up of the Issuer; or

          (d)  the Issuer proposes to take any action which would require an
               adjustment of the Exercise Rate pursuant to paragraph 10;

         then the Issuer shall cause to be given to the registered holder hereof
         at his or her address appearing on the Warrant Register, at least 20
         days (or 10 days in any case specified in clauses (a) or (b) above)
         prior to the applicable record date hereinafter specified, or promptly
         in the case of events for which there is no record date, by first class
         mail, postage prepaid, a written notice stating (i) the date as of
         which the holders of record of shares of Common Stock to be entitled to
         receive any such rights, options, warrants or distribution are to be
         determined, or (ii) the initial expiration date set forth in any tender
         offer or exchange offer for shares of Common Stock, or (iii) the date
         on which any such reclassification, consolidation, merger, conveyance,
         transfer, dissolution, liquidation or winding up is expected to become
         effective or consummated, and the date as of which it is expected that
         holders of record of shares of Common Stock shall be entitled to
         exchange such shares for securities or other property, if any,
         deliverable upon such reclassification, consolidation, merger,
         conveyance, transfer, dissolution, liquidation or winding up.

13.      The Issuer shall serve as warrant agent (the "Warrant Agent") under
         this Agreement. The Warrant Agent hereunder shall at all times maintain
         a register (the "Warrant Register") of the holders of Warrants. Upon 30
         days' notice to the registered holder hereof, the Issuer may appoint a
         new Warrant Agent. Such new Warrant Agent shall be a corporation doing
         business under the laws of the United States or any state thereof, in
         good standing and having a combined capital and surplus of not less
         than $50,000,000. The combined capital and surplus of any such new
         Warrant Agent shall be deemed to be the combined capital and surplus as
         set forth in the most recent annual report of its condition published
         by such Warrant Agent prior to its appointment; provided that such
         reports are published at least annually pursuant to law or to the
         requirements of a federal or state supervising or examining authority.
         After acceptance in writing of such appointment by the new Warrant
         Agent, it shall be vested with the same powers, rights, duties and
         responsibilities as if it had been originally named herein as the
         Warrant Agent, without any further assurance, conveyance, act or deed;
         but if for any reason it shall be reasonably necessary or expedient to
         execute and deliver any further assurance, conveyance, act or deed, the
         same shall be done at the expense of the Issuer and shall be legally
         and validly executed and delivered by the Issuer.


                                       7.
<PAGE>   32
         Any corporation into which the Issuer or any new Warrant Agent may be
         merged or any corporation resulting from any consolidation to which the
         Issuer or any new Warrant Agent shall be a party or any corporation to
         which the Issuer or any new Warrant Agent transfers substantially all
         of its corporate trust or shareholders services business shall be a
         successor Warrant Agent under this Agreement without any further act;
         provided that such corporation (i) would be eligible for appointment as
         successor to the Warrant Agent under the Provisions of this paragraph
         13 or (ii) is a wholly-owned subsidiary of the Warrant Agent. Any such
         successor Warrant Agent shall promptly cause notice of its succession
         as Warrant Agent to be mailed (by first class mail, postage prepaid) to
         the registered holder hereof at such holder's last address as shown on
         the Warrant Register.

         This Warrant Certificate shall not be valid unless signed by the
Issuer.


         IN WITNESS WHEREOF, Somatix Therapy Corporation has caused this Warrant
Certificate to be signed by its duly authorized officer.

Dated:   September 25, 1996

                                SOMATIX THERAPY CORPORATION


                                By:
                                         ------------------------------------
                                         Name:    David W. Carter
                                         Title:   Chairman of the Board,
                                                  President and Chief
                                                  Executive Officer

                                       8.
<PAGE>   33
                             FORM OF EXERCISE NOTICE

                  (To Be Executed Upon Exercise Of the Warrant)


                                                                          [DATE]
Somatix Therapy Corporation
850 Marina Village Parkway
Suite 100
Alameda, CA  94501
Attention:  Mr. Edward O. Lanphier II

                  Re:      FLETCHER WARRANT

Ladies and Gentlemen:

                  The undersigned is a non-U.S. Person (as that term is defined
in Regulation S under the Securities Act of 1933, as amended) and is the
registered holder of the above-referenced warrant (the "Warrant") issued by
Somatix Therapy Corporation, evidenced by the Warrant Certificate attached
hereto, and hereby elects to exercise the Warrant to purchase shares of Warrant
Shares (as defined in such Warrant Certificate) and herewith tenders $     by
certified or official bank check to the order of Somatix Therapy Corporation as
payment for such Warrant Shares in accordance with the terms of such Warrant
Certificate.

                  In accordance with the terms of the attached Warrant
Certificate, the undersigned requests that certificates for such shares be
registered in the name of and delivered to the undersigned at the following
address:(1)

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

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

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


                  [If the number of Warrant Shares to be delivered is less than
the total number of Warrant Shares deliverable under the Warrant, insert the
following -- The undersigned requests that a new warrant certificate
substantially identical to the attached Warrant Certificate be issued to the
undersigned evidencing the right to purchase the number of
- ---------------
         (1)The Warrant Shares issuable thereunder shall not be delivered within
the United States or to or for the benefit of a U.S. Person (as defined in
Regulation S under the Securities Act of 1933, as amended (the "Securities
Act")) unless registered under the Securities Act or pursuant to an available
exemption from such registration, as set forth in an opinion of counsel, where
applicable.
<PAGE>   34
Warrant Shares equal to (x) the total number of Warrant Shares deliverable under
the Warrant less (y) the number of Warrant Shares to be delivered in connection
with this exercise.]

                                    NAME OF REGISTERED HOLDER
                                    [ADDRESS]
                                    [ADDRESS]
                                    [ADDRESS]

                                    By:
                                         ----------------------------------
                                         Name:
                                         Title:



                                       2.
<PAGE>   35
                                                                         ANNEX C

                           CERTIFICATE OF DESIGNATION
                 OF PREFERENCES OF SERIES B-1 PREFERRED STOCK OF
                          SOMATIX THERAPY CORPORATION,
                             A DELAWARE CORPORATION



                  The undersigned David W. Carter and J. Stephan Dolezalek
hereby certify that:

                  (i) They are the duly elected and acting President and Chief
Executive Officer and Assistant, respectively, of Somatix Therapy Corporation, a
Delaware corporation (the "Corporation").

                  (ii) Pursuant to the authority conferred upon the Board of
Directors of the Corporation by paragraph (B) of Article IV of the Corporation's
Restated Certificate of Incorporation (the "Certificate"), the Board of
Directors of the Corporation on September 23, 1996 adopted the following
resolutions creating a series of preferred stock designated as Series B-1
Preferred Stock;

                  WHEREAS, the Certificate provides for a class of shares known
as Preferred Stock, issuable from time to time in one or more series; and

                  WHEREAS, the Board of Directors of the Corporation is
authorized by the Certificate to determine the powers, rights, preferences,
qualifications, limitations and restrictions granted to or imposed upon any
wholly unissued series of Preferred Stock, to fix the number of shares
constituting any such series, and to determine the designation thereof, or any
of them; and

                  WHEREAS, the Board of Directors of the Corporation, in that
certain Certificate of Designation of Preferences dated June 23, 1995 and filed
with the Secretary of State of the State of Delaware on June 27, 1995 (the
"Series A Certificate"), designated and fixed the powers, rights, preferences
qualifications, limitations and restrictions relating to those series of
Preferred Stock known as Series A-1 Preferred Stock (the "Series A-1 Preferred
Stock") and Series A-2 Preferred Stock (the "Series A-2 Preferred Stock") (the
Series A-1 Preferred Stock and the Series A-2 Preferred Stock shall be jointly
referred to herein as the "Series A Preferred Stock");

                  WHEREAS, the Corporation intends to enter into that certain
Subscription Agreement (the "Subscription Agreement") pursuant to which it
would, among other things, issue shares of Preferred Stock to a certain investor
(the "Investor");
<PAGE>   36
                  WHEREAS, the Board of Directors of the Corporation desires,
pursuant to its authority as aforesaid, to determine and fix the powers, rights,
preferences, qualifications, limitations and restrictions relating to the Series
B-1 Preferred Stock and the number of shares constituting, and the designation
of, each such series.

                  NOW, THEREFORE, BE IT RESOLVED, that pursuant to the authority
vested in the Board of Directors of the Corporation in accordance with the
provisions of the Certificate, the Series B-1 Preferred Stock is hereby created,
and the Board of Directors hereby fixes and determines the designation of, the
number of shares constituting, and the rights, preferences, privileges and
restrictions relating to, such Series B-1 Preferred Stock as follows:

                  1. Designation. The series of preferred stock of the
Corporation shall be designated as "Series B-1 Preferred Stock."

                  2. Authorized Number. The number of shares constituting the
Series B-1 Preferred Stock shall be thirty-three thousand three hundred
thirty-three (33,333) shares. The rights, preferences, restrictions and other
matters relating to the Series B-1 Preferred Stock set forth below are subject
to the rights, preferences, restrictions and other matters relating to the
Series A Preferred Stock but shall be senior in all respects to all other series
of Preferred Stock that may be issued by the Corporation from time to time;
provided, however, that any series or subseries of Preferred Stock issued to the
Investor shall have the same rights, preferences, restrictions and other matters
as the Series B-1 Preferred Stock; provided further that in the event the
Corporation obtains stockholder approval of the sale of any additional series or
subseries of Preferred Stock to the Investor pursuant to the put rights set
forth in the Subscription Agreement, the provisions of Section 6(B)(ii) hereof
shall not apply to such additional series or subseries. The Board of Directors
is also authorized to decrease the number of shares of any series of preferred
stock prior or subsequent to the issue of that series, but not below the number
of shares of such series then outstanding. In case the number of shares of any
series shall be so decreased, the shares constituting such decrease shall resume
the status which they had prior to the adoption of the resolution originally
fixing the number of shares of such series.

                  3. Dividend Rights. Subject to the prior dividend rights of
holders of Series A Preferred Stock as set forth in the Series A Certificate,
the holders of the Series B- 1 Preferred Stock shall be entitled to receive,
when, as and if declared by the Board of Directors, out of any assets of the
corporation legally available therefor, such dividends as may be declared from
time to time by the Board of Directors. Subject to the prior dividend rights of
holders of Series A Preferred Stock, the Board of Directors shall not pay any
dividend to the holders of the Common Stock unless and until it has paid an
equivalent dividend, on a pro rata per share basis, to the holders of the Series
B-1 Preferred Stock.


                                       2.
<PAGE>   37
                  4.       Liquidation Preference.

                           (A) In the event of any liquidation, dissolution,
change of control or winding up of the Corporation, whether voluntary or
involuntary, the holders of the Series A Preferred Stock shall be entitled to
receive, prior and in preference to any distribution of any of the assets or
surplus funds of the Corporation to the holders of the Series B-1 Preferred
Stock or the Common Stock by reason of their ownership thereof, the amount of
$25.00 per share (as adjusted for any stock dividends, combinations or splits
with respect to such shares) plus all accrued or declared but unpaid dividends
on such share for each share of Series A Preferred Stock then held by them. If
upon the occurrence of such event, the assets and funds thus distributed among
the holders of the Series A Preferred Stock shall be insufficient to permit the
payment to such holders of the full aforesaid preferential amount, then the
entire assets and funds of the Corporation legally available for distribution
shall be distributed ratably among the holders of the Series A Preferred Stock
in proportion to the preferential amount each such holder is otherwise entitled
to receive.

                           (B) After payment to the holders of Series A
Preferred Stock of the amounts set forth in 4(A) above, the holders of the
Series B-1 Preferred Stock shall be entitled to receive, prior and in preference
to any distribution of any of the assets or surplus funds of the Corporation to
the holders of the Common Stock by reason of their ownership thereof, the amount
of One Hundred Fifty Dollars ($150.00) (the "Original Issue Price") per share
(as adjusted for any stock dividends, combinations or splits with respect to
such shares) plus all accrued or declared but unpaid dividends on such share for
each share of Series B-1 Preferred Stock then held by such holder. If upon the
occurrence of such event, the assets and funds thus distributed among the
holders of the Series B-1 Preferred Stock shall be insufficient to permit the
payment to such holders of the full aforesaid preferential amount, then the
entire assets and funds of the Corporation legally available for distribution
shall be distributed ratably among the holders of the Series B-1 Preferred Stock
in proportion to the preferential amount each such holder is otherwise entitled
to receive.

                           (C) After payment to the holders of the Series A
Preferred Stock and the Series B-1 Preferred Stock of the amounts set forth in
Sections 4(A) and 4(B), respectively, above, the entire remaining assets and
funds of the Corporation legally available for distribution, if any, shall be
distributed among the holders of the Common Stock in proportion to the shares of
Common Stock then held by them.

                           (D) For purposes of this Section 4, (i) any
acquisition of the Corporation by means of merger or other form of corporate
reorganization in which outstanding shares of the Corporation are exchanged for
securities or other consideration issued, or caused to be issued, by the
acquiring corporation or its subsidiary (other than a mere reincorporation
transaction) or (ii) a sale of all or substantially all of the assets of the
Corporation or (iii) any other transaction or series of related transactions by
the Corporation in which in excess of 50% of the Corporation's voting power is
transferred, shall be treated as a liquidation, dissolution or winding up of the
Corporation and shall entitle

                                       3.
<PAGE>   38
the holders of Series A Preferred Stock and Series B-1 Preferred Stock to
receive at the closing in cash, securities or other property (valued as provided
in Section 4(E) below) the amount as specified in Sections 4(A) and 4(B),
respectively, above.

                           (E) Whenever the distribution provided for in this
Section 4 shall be payable in securities or property other than cash, the value
of such distribution shall be as follows:

                                      (i) Securities not subject to investment
         letter or other similar restrictions on free marketability:

                                            (A) If traded on a securities
         exchange, the value shall be deemed to be the average of the closing
         prices of the securities on such exchange over the 30-day period ending
         three (3) days prior to the closing;

                                            (B) If actively traded
         over-the-counter, the value shall be deemed to be the average of the
         closing bid or sale prices (whichever are applicable) over the 30-day
         period ending three (3) days prior to the closing; and

                                            (C) If there is no active public
         market, the value shall be the fair market value thereof, as determined
         in good faith by the Board of Directors of the Corporation.

                                    (ii) The method of valuation of securities
         subject to investment letter or other restrictions on free
         marketability (other than restrictions arising solely by virtue of a
         stockholder's status as an affiliate or former affiliate) shall be to
         make an appropriate discount from the market value determined as above
         in (i) (A), (B) or (C) to reflect the approximate fair market value
         thereof, as determined in good faith by the Board of Directors of the
         Corporation.

                                    (iii) In the event of any bona-fide dispute
         between the Corporation and one or more holders of the Series A
         Preferred Stock or Series B-1 Preferred Stock as to any fair market
         value determination under clauses (i)(C) or (ii) above, such dispute
         shall be resolved through binding arbitration under the rules of the
         American Arbitration Association, with the arbitration panel consisting
         of persons familiar with the valuation of public and private entities
         and such panel being advised, as to such valuation issues, by an
         investment bank of nationally recognized standing, the costs thereof to
         be borne by the non-prevailing party.

                  5. Redemption. The Series B-1 Preferred Stock is not
redeemable.

                  6. Conversion. The holders of Series B-1 Preferred Stock shall
have conversion rights as follows (the "Conversion Rights"):


                                       4.
<PAGE>   39
                            (A) Right to Convert. On and after November 9, 1996,
each such share shall be convertible upon delivery of such shares in accordance
with Section 6(C) below on any business day (each a "Conversion Date") at the
option of the holder into that number of shares of Common Stock equal to the
quotient obtained by dividing (i) the Original Issue Price multiplied by the
number of such shares to be converted at such time, by (ii) 101% of the average
of the daily volume-weighted average price (the "Conversion Price") of the
Common Stock reported by The Nasdaq Stock Market ("Nasdaq") for the forty (40)
trading day period (the "Pricing Period") ending two (2) trading days prior to
the Conversion Date; provided, however, that the Conversion Price shall in no
event exceed 115% of the daily volume-weighted average closing price of the
Common Stock as reported by Nasdaq for the first five (5) days of such Pricing
Period; provided further, that the minimum number of shares which may be
converted at any one time shall be such number of shares of Series B-1 Preferred
Stock as shall be convertible in accordance with the formula set forth above
into seventy-five thousand (75,000) shares of Common Stock or such lesser number
of shares as shall be then outstanding; and provided further, that in the event
there is any split, combination, reclassification of or dividend on the Common
Stock (an "Event") during the Pricing Period, all pre-Event prices during the
Pricing Period shall be adjusted, and calculated, on a post-Event basis.

                            (B) Automatic Conversion. Each share of Series B-1
Preferred Stock shall automatically be converted into Common Stock on the
earlier of (i) September 25, 1999, in which event each share of Series B-1
Preferred Stock shall automatically be converted into Common Stock in accordance
with the formula set forth in Section 6(A) above using September 25, 1999 as the
Conversion Date, or (ii) at such time as the daily volume-weighted average price
of the Common Stock as reported by Nasdaq for any consecutive sixty (60) day
trading period commencing after March 25, 1997 (the "Premium Period") is greater
than 130% of the closing price of the Common Stock as reported by Nasdaq on
September 24, 1996, in which event each share of Series B-1 Preferred Stock
shall be converted into Common Stock in accordance with the formula set forth in
Section 6(A) above using the sixtieth (60th) trading day of the Premium Period
as the Conversion Date; provided, however, that the Conversion Price under
Section 6(B)(ii) shall in no event exceed 130% of the closing price of the
Common Stock as reported by Nasdaq on September 24, 1996; and provided further
that, in the event the Corporation obtains stockholder approval of the sale of
any additional series or subseries of Preferred Stock to the Investor pursuant
to the put rights set forth in the Subscription Agreement, this Section 6(B)(ii)
shall be null and void and of no further force or effect.

                            (C) Mechanics of Conversion. Before any holder of
Series B-1 Preferred Stock shall be entitled to convert the same into shares of
Common Stock, he shall surrender the certificate or certificates therefor, duly
endorsed, at the office of this Corporation or of any transfer agent for the
Series B-1 Preferred Stock, and shall give written notice by mail, postage
prepaid, or by facsimile, confirmed by mail, to this Corporation at its
principal corporate office, of the election to convert the same and shall state
therein the name or names in which the certificate or certificates for shares of

                                       5.
<PAGE>   40
Common Stock are to be issued. The Conversion Date shall be the date of such
surrender of the Series B-1 Preferred Stock to be converted, and the person or
persons entitled to receive the shares of Common Stock issuable upon such
conversion shall be treated for all purposes as the record holder or holders of
such shares of Common Stock as of such date. This Corporation or the transfer
agent, if any, for such shares shall, within two (2) business days of the
Conversion Date, issue and deliver at such office to such holder of the Series
B- 1 Preferred Stock, or to the nominee or nominees of such holder, a
certificate or certificates for the number of shares of Common Stock to which
such holder shall be entitled as aforesaid. for purposes of this Section 6, the
term "business day" shall mean any day on which banking institutions in the City
and State of New York are open for business.

                            (D) Adjustments for Reclassification and
Reorganization. If the Common Stock issuable upon conversion of the Series B-1
Preferred Stock shall be changed into the same or a different number of shares
of any other class or classes of stock, whether by capital reorganization,
reclassification or otherwise (other than a merger or other reorganization
referred to in Section 4(D) above), the number of shares of such other class or
classes of stock into which the Series B-1 Preferred Stock shall be convertible
shall, concurrently with the effectiveness of such reorganization or
reclassification, be proportionately adjusted so that the Series B-1 Preferred
Stock shall be convertible into, in lieu of the number of shares of Common Stock
which the holders would otherwise have been entitled to receive, a number of
shares of such other class or classes of stock equivalent to the number of
shares of Common Stock that would have been subject to receipt by the holders
upon conversion of the Series B-1 Preferred Stock immediately before that
change.

                            (E) No Impairment. This Corporation will not, by
amendment of its Certificate or through any reorganization, recapitalization,
transfer of assets, consolidation, merger, dissolution, issue or sale of
securities or any other voluntary action, avoid or seek to avoid the observance
or performance of any of the terms to be observed or performed hereunder by this
Corporation, but will at all times in good faith assist in the carrying out of
all the provisions of this Section 6 and in the taking of all such action as may
be necessary or appropriate in order to protect the Conversion Rights of the
holders of the Series B-1 Preferred Stock against impairment.

                            (F) No Fractional Shares and Certificate as to
Adjustments.

                                      (i) No fractional shares shall be issued
         upon conversion of the Series B-1 Preferred Stock, and the number of
         shares of Common Stock to be issued shall be rounded to the nearest
         whole share. Whether or not fractional shares are issuable upon such
         conversion shall be determined on the basis of the total number of
         shares of Series B-1 Preferred Stock the holder is at the time
         converting into Common Stock and the number of shares of Common Stock
         issuable upon such aggregate conversion.


                                       6.
<PAGE>   41
                                      (ii) Upon the occurrence of any adjustment
         or readjustment of the number of shares of Common Stock into which the
         Series B-1 Preferred Stock can be converted pursuant to Section 6(D)
         above, this Corporation, at its expense, shall promptly compute such
         adjustment or readjustment in accordance with the terms hereof and
         prepare and furnish to each holder of Series B-1 Preferred Stock a
         certificate setting forth such adjustment or readjustment and showing
         in detail the facts upon which such adjustment or readjustment is
         based.

                           (G) Notices of Record Date. In the event of any
taking by this Corporation of a record of the holders of any class of securities
for the purpose of determining the holders thereof who are entitled to receive
any dividend (other than a cash dividend) or other distribution, any right to
subscribe for, purchase or otherwise acquire any shares of stock of any class or
any other securities or property, or to receive any other right, this
Corporation shall mail to each holder of Series B-1 Preferred Stock, at least
twenty (20) days prior to the date specified therein, a notice specifying the
date on which any such record is to be taken for the purpose of such dividend,
distribution or right, and the amount and character of such dividend,
distribution or right.

                           (H) Reservation of Stock Issuable Upon Conversion.
This Corporation shall at all times reserve and keep available out of its
authorized but unissued shares of Common Stock solely for the purpose of
effecting the conversion of the Series B-1 Preferred Stock such number of its
shares of Common Stock as shall from time to time be sufficient to effect the
conversion of all outstanding shares of the Series B-1 Preferred Stock; and if
at any time the number of authorized but unissued shares of Common Stock shall
not be sufficient to effect the conversion of all the then outstanding Series
B-1 Preferred Stock, in addition to such other remedies as shall be available to
the holder of such Series B-1 Preferred Stock, this Corporation will take such
corporate action as may, in the opinion of its counsel, be necessary to increase
its authorized but unissued shares of Common Stock to such number of shares as
shall be sufficient for such purposes.

                           (I) Notices. Any notice required by the provisions of
this Section 6 to be given to the holders of Series B-1 Preferred Stock shall be
deemed given if deposited in the United States mail, postage prepaid and return
receipt requested, and addressed to each holder of record at his address
appearing on the books of this Corporation.

                  7. Voting Rights. Subject to the rights of the holders of the
Series A Preferred Stock as set forth in the Series A Certificate, each holder
of shares of Series B-1 Preferred Stock shall be entitled to the number of votes
equal to the number of shares of Common Stock into which such shares of Series
B-1 Preferred Stock could be converted as of the record date for any action and
shall have voting rights and powers equal to the voting rights and powers of the
Common Stock (except as otherwise expressly provided herein, in the Series A
Certificate or as required by law, voting together with the Series A Preferred
Stock and Common Stock as a single class) and shall be entitled to notice of any
stockholders' meeting in accordance with the Bylaws of the Corporation.
Fractional votes

                                       7.
<PAGE>   42
shall not, however, be permitted and any fractional voting rights resulting from
the above formula (after aggregating all shares into which shares of Series B-1
Preferred Stock held by each holder could be converted) shall be rounded to the
nearest whole number (with one-half being rounded upward). Each holder of Common
Stock shall be entitled to one (1) vote for each share of Common Stock held.

                  8. Status of Converted or Redeemed Stock. In the event any
Series B-1 Preferred Stock shall be converted pursuant to Section 6 hereof, the
shares so converted shall be promptly canceled after the conversion thereof. All
such shares shall upon their cancellation become authorized but unissued shares
of Preferred Stock and may be reissued only as part of a new series or subseries
of Preferred Stock to be created by resolution or resolutions of the Board of
Directors, subject to the conditions and restrictions on issuance set forth
herein.

                               *      *      *

                  RESOLVED FURTHER, that the Chairman of the Board, the Chief
Executive Officer, the President or any Vice President, and the Secretary, the
Chief Financial Officer, the Treasurer, or any Assistant Secretary or Assistant
Treasurer of this Corporation are each authorized to execute, verify, and file a
Certificate of Designation of Preferences in accordance with Delaware law.

                                       8.
<PAGE>   43
                  IN WITNESS WHEREOF, the undersigned have executed this
certificate on September __, 1996.



                                          -------------------------------------
                                          David W. Carter
                                          President and Chief Executive Officer



                                          -------------------------------------
                                          J. Stephan Dolezalek
                                          Assistant Secretary



                  The undersigned certify under penalty of perjury that they
have read the foregoing Certificate of Designation of Preferences and know the
contents thereof, and that the statements therein are true.

                  Executed at Alameda, California, on September __, 1996.



                                          -------------------------------------
                                          David W. Carter
                                          President and Chief Executive Officer



                                          -------------------------------------
                                          J. Stephan Dolezalek
                                          Assistant Secretary


                                       9.
<PAGE>   44
                                                                       EXHIBIT A

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549





                                    FORM 8-K/A

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




Date of Report (Date of earliest event reported):   SEPTEMBER 24, 1996


                           SOMATIX THERAPY CORPORATION
               (Exact name of registrant as specified in charter)


         DELAWARE                    0-14758                  94-2762045
(State or Other Jurisdiction       (Commission              (IRS Employer
   of Incorporation)               File Number)           Identification No.)


 950 MARINA VILLAGE PARKWAY, SUITE 100, ALAMEDA, CALIFORNIA      94501
(Address of Principal Executive Offices)                       (Zip Code)


Registrant's telephone number, including area code:   (510) 748-3000



         (Former Name or Former Address, if Changed Since Last Report.)


                                   Page 1 of 4
<PAGE>   45
Item 5.    Other Events

           On September 24, 1996, Somatix Therapy Corporation (the "Company")
announced an agreement to sell shares of preferred stock convertible at a
premium to market over the prevailing average price of the common stock. The
sale will provide an immediate cash infusion of $5.0 million. Subject to certain
limitations, the Company will also have the right to sell up to $10 million in
additional share of preferred stock on similar terms over the next three years.
In connection with the preferred stock financing, the Company issued to the
investor a warrant to purchase up to 650,000 shares of common stock at a fixed
exercise price representing a premium above the closing price of the Company's
common stock on September 24, 1996.

           Subject to certain adjustments and limitations, the preferred stock
is convertible into common stock at a premium to the average market price at the
time of conversion, not later than September 24, 2002.

           "This financing provides Somatix with the ability to take down up to
an additional $10 million at the time of our choosing over the next three
years," said David W. Carter, Somatix Chairman and Chief Executive Officer. "I
am particularly encouraged with the enthusiasm of our new investors for our
multiple gene transfer capabilities we have built at Somatix."

           The securities associated with this transaction have not been
registered under the Securities Act of 1933, as amended (the "Act"), and were
offered pursuant to the exemption provided by Regulation S thereunder and may
not be offered or sold in the United States or to or for the account or benefit
of a U.S. person except pursuant to registration under the Act or an available
exemption therefrom.

           Coincident with the financing, Somatix has implemented a cost
reduction program, delaying a Phase III clinical trial of its Autologous
GVAX(TM) Cancer Vaccine and significantly reducing the clinical development
staff involved in this program. While the Company remains committed to its
cancer gene therapy program, it has determined that the substantial costs
associated with large scale clinical trials should be shared with an appropriate
corporate partner. Somatix will continue to accrue Phase I/II clinical data on
the autologous vaccine as well as further pursue discussions with potential
clinical partners.

           "I want to underline Somatix's commitment to cancer gene therapy,
which continues to be our most advanced therapeutics area," stated David W.
Carter. "However, we have other product candidates moving into the clinic and
believe it is more prudent to spread our resources across multiple therapeutic
programs. We will continue to generate GVAX data with our clinical collaborators
and move into pivotal efficacy trials when we have a corporate collaborator."

           Somatix Therapy Corporation is a leader in the emerging field of gene
therapy. The company's mission is to research, develop and commercialize
proprietary processes for the genetic modification of cells and their use in the
treatment of human disease. Somatix's strategic assets include its multiple gene
transfer systems, broad-based intellectual property, and product development
programs focused on cancer, neural diseases, and inherited genetic disorders.


                                       2.
<PAGE>   46
Item 7.    Financial Statements, Pro Forma Financial Information and Exhibits.

           (a)    Financial Statements.

           The registrant has determined that no financial statements are
required to be filed pursuant to this item.

           (b)    Pro Forma Financial Information.

           The registrant has determined that no pro forma financial information
is required to be filed pursuant to this item.

           (c)    Exhibits.

           None.

                                       3.
<PAGE>   47
                                   SIGNATURES



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

Date:  September 25, 1996              SOMATIX THERAPY CORPORATION
                                              (Registrant)


                                       By:      /s/ J. STEPHAN DOLEZALEK
                                       Name:    J. Stephan Dolezalek
                                       Title:   Assistant Secretary


                                       4.


<PAGE>   1
                                                                   EXHIBIT 10.86

         The Warrant represented by this certificate was issued on September 25,
         1996 (the "Original Issue Date") pursuant to the Subscription Agreement
         dated September 24, 1996 between Somatix Therapy Corporation and
         Fletcher International Limited. Neither the Warrant represented by this
         certificate nor the securities issuable upon exercise hereof have been
         registered under the Securities Act of 1933, as amended (the "Act") and
         the Warrants may not be exercised by a U.S. Person unless pursuant to a
         transaction registered under the Act or exempt from such Registration.
         The Warrant represented hereby has been sold in reliance on the
         exemption from registration provided by Regulation S under the Act
         ("Regulation S"). Prior to the expiration of a 40-day restricted
         period beginning on the Original Issue Date (the "Restricted Period"),
         the Warrant represented by this certificate may not be exercised,
         offered or sold, directly or indirectly, within the United States (as
         defined in Regulation S under the Act), to a U.S. Person (as defined in
         Regulation S under the Act) or for the account or benefit of a U.S.
         Person. Neither Somatix Therapy Corporation nor its transfer agent
         shall be obligated to remove this legend unless it shall have received
         an opinion of counsel stating that such removal complies with the
         requirements of Regulation S.

                             650,000 WARRANT SHARES

                               WARRANT CERTIFICATE

                           SOMATIX THERAPY CORPORATION

                  This Warrant Certificate certifies that FLETCHER INTERNATIONAL
LIMITED, or registered assigns, is the registered holder of one Warrant (the
"Warrant") expiring on the Termination Date (as defined below) to purchase up to
650,000 shares (the "Maximum Warrant Amount") of common stock, par value $0.01
per share (the "Common Stock"), of Somatix Therapy Corporation, a Delaware
corporation (the "Issuer"), at the Exercise Price (as defined below); provided,
however, that if, on March 24, 1997, the sum of (i) the aggregate stated value
of the Preferred Shares then owned by Fletcher plus (ii) the aggregate
equivalent Preferred Share stated value of all Common Stock (as defined below)
then owned by Fletcher (calculated using the volume-weighted average of the
conversion ratios for the period from the Closing Date through March 24, 1997 is
less than or equal to $2,500,000, then the Maximum Warrant Amount shall be an
amount equal to:

                                            5
                           650,000  *   -----------
                                        (3 * X) - 4

                           where X means the average of the daily
                           volume-weighted average prices of Somatix Common
                           Stock for the period and including September 24, 1996
                           to but excluding March 24, 1997; provided,
<PAGE>   2
                           however, that the Maximum Warrant Amount shall never
                           be greater than 650,000 and shall never be lower than
                           195,000.

                  The Warrant represented hereby was issued on September 25,
1996 (the "Original Issue Date") pursuant to the Subscription Agreement dated
September 24, 1996 (the "Subscription Agreement"), between the Issuer and
Fletcher International Limited ("Fletcher"), and is subject to the terms and
conditions thereof. Unless otherwise defined herein, capitalized terms used
herein shall have the meanings set forth in the Subscription Agreement. A copy
of the Subscription Agreement may be obtained by the registered holder hereof
upon written request to the Issuer.

                  The Warrant represented hereby may be exercised on any
Business Day (a "Warrant Exercise Date") from and including March 24, 1998 to
and including September 24, 2002 (the "Termination Date"). The Warrant entitles
the registered holder hereof to receive from the Issuer upon exercise up to the
number of Warrant Shares set forth on the face hereof upon surrender of this
Warrant Certificate as provided on the reverse hereof and payment of the
Exercise Price defined below (the "Exercise Price") (plus transfer taxes, if
applicable) to the Issuer in cash or by certified or official bank check.

                  The Exercise Price per Warrant Share shall be $5.533.

                  The Warrant represented hereby shall have the following
additional terms:

1.       The Warrant represented hereby may be exercised upon surrender of this
         Warrant Certificate by the registered holder hereof to the Issuer at
         its principal office on any Exercise Date with the Exercise Notice
         attached hereto (an "Exercise Notice") duly completed and signed by the
         registered holder hereof and upon tender by such holder to the Issuer
         of the Exercise Price (plus transfer taxes, if applicable) for the
         total number of Warrant Shares in respect of which such Warrant is then
         exercised. The Warrant represented hereby shall be exercisable only in
         the minimum amount of 30,000 Warrant Shares and integral multiples of
         30,000 Warrant Shares in excess thereof (or such lesser amount as shall
         constitute the full amount of this Warrant).

2.       On the Business Day following an Exercise Date (an "Issue Date") the
         Issuer shall issue and cause to be delivered to the registered holder
         hereof at such address as such holder shall specify in the Exercise
         Notice a certificate or certificates for the number of full Warrant
         Shares issuable upon the exercise of such Warrant, registered in such
         holder's name, together with cash (if any) as provided in paragraph 4.
         Such certificate or certificates shall be deemed to have been issued
         and any person so designated to be named therein shall be deemed to
         have become a holder of record of such Warrant Shares as of such
         Exercise Date.

3.       If on such Issue Date the number of Warrant Shares to be delivered
         shall be less than the total number of Warrant Shares deliverable
         hereunder, there shall be issued to the holder hereof or his assignee
         on such Issue Date a new warrant certificate

                                       2.

<PAGE>   3
         substantially identical to this Warrant Certificate, except that such
         new warrant certificate shall evidence the right to purchase the number
         of Warrant Shares equal to (x) the total number of Warrant Shares
         deliverable hereunder less (y) the number of Warrant Shares so
         delivered.

4.       The Issuer shall not be required to issue fractional Warrant Shares on
         the exercise of the Warrant represented hereby. The number of full
         Warrant Shares which shall be issuable upon the exercise of the Warrant
         shall be computed on the basis of the aggregate number of Warrant
         Shares purchasable on exercise of the Warrant so presented. If any
         fraction of a Warrant Share would, except for the provisions of this
         paragraph 4, be issuable on the exercise of the Warrant, the Issuer
         shall pay an amount in cash equal to the closing sale price of the
         Common Stock per Warrant Share on the day immediately preceding the
         date the Warrant is presented for exercise, multiplied by such
         fraction.

5.       For so long as the Warrant represented hereby has not been exercised in
         full, the Issuer shall at all times reserve and keep available, free
         from pre-emptive rights, out of its authorized but unissued Common
         Stock, for issuance upon exercise of the Warrant represented hereby,
         the maximum number of Common Stock then so issuable (as adjusted from
         time to time pursuant to paragraph 10).

6.       By accepting delivery of this Warrant Certificate, the registered
         holder hereof covenants and agrees with the Issuer not to exercise or
         transfer the Warrant represented hereby except in compliance with the
         terms of the Subscription Agreement and this Warrant Certificate.

7.       By accepting delivery of this Warrant Certificate, the registered
         holder hereof covenants and agrees with the Issuer that no Warrant may
         be sold, assigned, conveyanced, pledged, hypothecated or in any other
         manner disposed of or transferred unless and until such holder shall
         deliver to the Issuer (i) written notice of such transfer and of the
         name and address of the transferee has been received by the Issuer;
         (ii) a written agreement of the transferee to comply with the terms of
         the Subscription Agreement and this Warrant Certificate and (iii) in
         the case of a transfer hereof prior to the expiration of the Restricted
         Period (if any) specified on the first page hereof, an opinion of
         counsel stating that such transferee is not a "U.S. Person" as defined
         in Regulation S under the Securities Act of 1933, as amended, and that
         such transfer is otherwise exempt from any registration requirements.

8.       The Issuer will pay all documentary stamp taxes (if any) attributable
         to the issuance of Warrant Shares upon the exercise of the Warrant by
         the registered holder hereof; provided, however, that the Issuer shall
         not be required to pay any tax or taxes which may be payable in respect
         of any transfer involved in the registration of the Warrant Certificate
         or any certificates for Warrant Shares in a name other than that of the
         registered holder of the Warrant Certificate surrendered upon the
         exercise of a Warrant, and the Issuer shall not be required to issue or
         deliver the Warrant

                                       3.
<PAGE>   4
         Certificate or certificates for Warrant Shares unless or until the
         person or persons requesting the issuance thereof shall have paid to
         the Issuer the amount of such tax or shall have established to the
         satisfaction of the Issuer that such tax has been paid.

9.       In case this Warrant Certificate shall be mutilated, lost, stolen or
         destroyed, the Issuer may in its discretion issue in exchange and
         substitution for and upon cancellation of the mutilated Warrant
         Certificate, or in lieu of and substitution for the Warrant Certificate
         lost, stolen or destroyed, a new Warrant Certificate of like tenor, but
         only upon receipt of evidence reasonably satisfactory to the Issuer of
         such loss, theft or destruction of such Warrant Certificate and
         indemnity, if requested, satisfactory to it. Applicants for a
         substitute Warrant Certificate shall also comply with such other
         reasonable regulations and pay such other reasonable charges as the
         Issuer may prescribe.

10.      The number of Warrant Shares issuable upon the exercise of the Warrant
         (the "Exercise Rate"), the Maximum Warrant Amount, and the terms and
         conditions of the Warrant are subject to adjustment by the Issuer, in
         consultation with the holder hereof, from time to time as follows:

         (a)      If the Issuer:

                  1.       subdivides its outstanding shares of Common Stock
                           into a greater number of shares;

                  2.       combines its outstanding shares of Common Stock into
                           a smaller number of shares; or

                  3.       issues by reclassification of its Common Stock any
                           shares of its Capital Stock (as defined below);

                  then the Exercise Rate in effect immediately prior to such
                  action shall be adjusted so that the registered holder hereof
                  shall thereafter be entitled to receive upon exercise the
                  number of shares of Common Stock or other Capital Stock of the
                  Issuer which such holder would have owned immediately
                  following such action if such holder had exercised the Warrant
                  immediately prior to such action.

                  As used herein, the term "Capital Stock" means, with respect
                  to any corporation, any and all shares, interests, rights to
                  purchase, warrants, options, participations or other
                  equivalents of or interests (however designated) in stock
                  issued by that corporation.

                  Such adjustment shall become effective simultaneously with the
                  effective date of any subdivision, combination or
                  reclassification.

                                       4.
<PAGE>   5
                  If, after an adjustment, the registered holder hereof would
                  receive upon exercise shares of two or more classes of Capital
                  Stock of the Issuer, the Exercise Rate shall thereafter be
                  subject to adjustment upon the occurrence of an action taken
                  with respect to each such class of Capital Stock as is
                  contemplated hereby with respect to the Common Stock, on terms
                  comparable to those applicable to Common Stock hereunder.

         (b)      Whenever the Exercise Rate is adjusted, the Issuer shall
                  provide the notices required by paragraph 12 hereof.

         (c)      If:

                  1.       the Issuer takes any action that would require an
                           adjustment in the Exercise Rate pursuant to
                           subparagraph (a) above; or

                  2.       there is a liquidation or dissolution of the Issuer;

                  then the Issuer shall mail to the registered holder hereof a
                  notice stating the proposed effective date of a subdivision,
                  combination, reclassification, consolidation, merger,
                  transfer, lease, liquidation or dissolution, as the case may
                  be. The Issuer shall mail the notice at least 15 days before
                  such date.

         (d)      The Issuer covenants and agrees with the registered holder
                  hereof not to consolidate or merge with or into, or transfer
                  or lease all or substantially all its assets to, any person
                  unless, at the option of the registered holder hereof, either:

                  1.       on any date prior to the effective date of such
                           consolidation, merger, transfer or lease (the
                           "Redemption Date"), the Issuer shall have redeemed
                           the Warrant represented hereby by paying to such
                           holder, upon surrender of this Warrant Certificate, a
                           cash payment equal to the Black-Scholes value of the
                           Warrant represented hereby, computed as of such
                           Redemption Date; or

                  2.       (a)    such person shall expressly assume in writing
                                  all of the obligations of the Issuer under the
                                  Subscription Agreement and hereunder and
                                  deliver notice thereof to the registered
                                  holder hereof; and

                           (b)    upon consummation of such transaction, the
                                  Warrant shall automatically become exercisable
                                  for the kind and amount of securities, cash or
                                  other assets that the registered holder hereof
                                  would have owned immediately after the
                                  consolidation, merger, transfer or lease if
                                  such holder had exercised the Warrant
                                  immediately before the effective date of such
                                  transaction.

                                       5.
<PAGE>   6
         (e)      After an adjustment to the Exercise Rate hereunder, any
                  subsequent event requiring an adjustment hereunder shall cause
                  an adjustment to the Exercise Rate as so adjusted.

11.      Upon the issuance of any stock dividend or distribution of Common Stock
         pro rata to all holders of Common Stock, the registered holder hereof
         on the record date for such distribution shall be entitled to receive
         such dividend or distribution on the same terms as the holders of
         Common Stock upon exercise hereof.

12.      Upon any adjustment of the Exercise Rate pursuant to paragraph 10, the
         Issuer shall promptly thereafter but in any event within 15 days
         following such adjustment (i) cause to be delivered to the registered
         holder hereof a certificate of its Chief Financial Officer setting
         forth the Exercise Rate after such adjustment and setting forth in
         reasonable detail the method of calculation and the facts upon which
         such calculations are based, which certificate shall be conclusive
         evidence of the correctness of the matters set forth therein, and (ii)
         cause to be delivered to the registered holder hereof at his or her
         address appearing on the Warrant Register written notice of such
         adjustments by first-class mail, postage prepaid. Where appropriate,
         such notice may be given in advance and included as part of the notice
         required to be mailed under the other provisions of this paragraph 12.

         In case:

         (a)      the Issuer shall authorize the issuance to all holders of
                  shares of Common Stock of rights, options or warrants to
                  subscribe for or purchase shares of Common Stock or of any
                  other subscription rights or warrants; or

         (b)      of any consolidation or merger to which the Issuer is a party
                  and for which approval of any shareholders of the Issuer is
                  required, or of the conveyance or transfer of the properties
                  and assets of the Issuer substantially as an entirety, or of
                  any reclassification or change of Common Stock issuable upon
                  exercise of the Warrant (other than a change in par value, or
                  from par value to no par value, or from no par value to par
                  value, or as a result of a subdivision or combination), or of
                  a tender offer or exchange offer for shares of Common Stock;
                  or

         (c)      of the voluntary or involuntary dissolution, liquidation or
                  winding up of the Issuer; or

         (d)      the Issuer proposes to take any action which would require an
                  adjustment of the Exercise Rate pursuant to paragraph 10;

         then the Issuer shall cause to be given to the registered holder hereof
         at his or her address appearing on the Warrant Register, at least 20
         days (or 10 days in any case specified in clauses (a) or (b) above)
         prior to the applicable record date hereinafter

                                       6.
<PAGE>   7
         specified, or promptly in the case of events for which there is no
         record date, by first class mail, postage prepaid, a written notice
         stating (i) the date as of which the holders of record of shares of
         Common Stock to be entitled to receive any such rights, options,
         warrants or distribution are to be determined, or (ii) the initial
         expiration date set forth in any tender offer or exchange offer for
         shares of Common Stock, or (iii) the date on which any such
         reclassification, consolidation, merger, conveyance, transfer,
         dissolution, liquidation or winding up is expected to become effective
         or consummated, and the date as of which it is expected that holders of
         record of shares of Common Stock shall be entitled to exchange such
         shares for securities or other property, if any, deliverable upon such
         reclassification, consolidation, merger, conveyance, transfer,
         dissolution, liquidation or winding up.

13.      The Issuer shall serve as warrant agent (the "Warrant Agent") under
         this Agreement. The Warrant Agent hereunder shall at all times maintain
         a register (the "Warrant Register") of the holders of Warrants. Upon 30
         days' notice to the registered holder hereof, the Issuer may appoint a
         new Warrant Agent. Such new Warrant Agent shall be a corporation doing
         business under the laws of the United States or any state thereof, in
         good standing and having a combined capital and surplus of not less
         than $50,000,000. The combined capital and surplus of any such new
         Warrant Agent shall be deemed to be the combined capital and surplus as
         set forth in the most recent annual report of its condition published
         by such Warrant Agent prior to its appointment; provided that such
         reports are published at least annually pursuant to law or to the
         requirements of a federal or state supervising or examining authority.
         After acceptance in writing of such appointment by the new Warrant
         Agent, it shall be vested with the same powers, rights, duties and
         responsibilities as if it had been originally named herein as the
         Warrant Agent, without any further assurance, conveyance, act or deed;
         but if for any reason it shall be reasonably necessary or expedient to
         execute and deliver any further assurance, conveyance, act or deed, the
         same shall be done at the expense of the Issuer and shall be legally
         and validly executed and delivered by the Issuer.

         Any corporation into which the Issuer or any new Warrant Agent may be
         merged or any corporation resulting from any consolidation to which the
         Issuer or any new Warrant Agent shall be a party or any corporation to
         which the Issuer or any new Warrant Agent transfers substantially all
         of its corporate trust or shareholders services business shall be a
         successor Warrant Agent under this Agreement without any further act;
         provided that such corporation (i) would be eligible for appointment as
         successor to the Warrant Agent under the Provisions of this paragraph
         13 or (ii) is a wholly-owned subsidiary of the Warrant Agent. Any such
         successor Warrant Agent shall promptly cause notice of its succession
         as Warrant Agent to be mailed (by first class mail, postage prepaid) to
         the registered holder hereof at such holder's last address as shown on
         the Warrant Register.

         This Warrant Certificate shall not be valid unless signed by the
         Issuer.

                                       7.
<PAGE>   8
         IN WITNESS WHEREOF, Somatix Therapy Corporation has caused this Warrant
Certificate to be signed by its duly authorized officer.

Dated:   September 25, 1996

                                       SOMATIX THERAPY CORPORATION


                                       By:  /s/ DAVID W. CARTER
                                            ------------------------------
                                            Name:   David W. Carter
                                            Title:  Chairman of the Board,
                                                    President and Chief
                                                    Executive Officer



                                       8.
<PAGE>   9
                             FORM OF EXERCISE NOTICE

                  (To Be Executed Upon Exercise Of the Warrant)

                                                                          [DATE]

Somatix Therapy Corporation
850 Marina Village Parkway
Suite 100
Alameda, CA  94501
Attention:  Mr. Edward O. Lanphier II

             Re: FLETCHER WARRANT

Ladies and Gentlemen:

             The undersigned is a non-U.S. Person (as that term is defined in
Regulation S under the Securities Act of 1933, as amended) and is the registered
holder of the above-referenced warrant (the "Warrant") issued by Somatix Therapy
Corporation, evidenced by the Warrant Certificate attached hereto, and hereby
elects to exercise the Warrant to purchase _______________shares of Warrant
Shares (as defined in such Warrant Certificate) and herewith tenders
$_______________ by certified or official bank check to the order of Somatix
Therapy Corporation as payment for such Warrant Shares in accordance with the
terms of such Warrant Certificate.

             In accordance with the terms of the attached Warrant Certificate,
the undersigned requests that certificates for such shares be registered in the
name of and delivered to the undersigned at the following address:(1)

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

             If the number of Warrant Shares to be delivered is less than the
total number of Warrant Shares deliverable under the Warrant, insert the
following -- The undersigned requests that a new warrant certificate
substantially identical to the attached Warrant Certificate be issued to the
undersigned evidencing the right to purchase the number of Warrant Shares equal
to (x) the total number of Warrant Shares deliverable under the


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

     (1) The Warrant Shares issuable thereunder shall not be delivered within
the United States or to or for the benefit of a U.S. Person (as defined in
Regulation S under the Securities Act of 1933, as amended (the "Securities
Act")) unless registered under the Securities Act or pursuant to an available
exemption from such registration, as set forth in an opinion of counsel, where
applicable.

                                       9.
<PAGE>   10
Warrant less (y) the number of Warrant Shares to be delivered in connection with
this exercise.]

                                   NAME OF REGISTERED HOLDER
                                   [ADDRESS]
                                   [ADDRESS]
                                   [ADDRESS]

                                   By:  ____________________________________
                                        Name:
                                        Title:



                                       10.


<PAGE>   1
                                                                    EXHIBIT 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the incorporation by reference in the Registration Statement on
Form S-8 (No. 33-84010), dated September 14, 1994 pertaining to the 1992 Stock
Option Plan of Somatix Therapy Corporation, the Registration Statement on Form
S-8 (No. 33-87632), dated December 19, 1994 pertaining to the 1992 Stock Option
Plan and a special grant award to Fred H. Gage, the Registration Statement on
Form S-8 (No. 33-89926), dated March 3, 1995 pertaining to the Stock Option Plan
of Merlin Pharmaceutical Corporation, the Registration Statement on Form S-3
(No. 33-60363), dated June 19, 1995 for the registration of the resale of
2,363,895 shares of common stock in connection with the acquisition of Merlin
Pharmaceutical Corporation, the Registration Statement on Form S-3 (No.
33-60365), dated June 19, 1995 for the registration of 4,321,031 shares of
common stock and the Registration Statement on Form S-3 (No. 33-60873), dated
July 6, 1995 for the registration of 2,476,500 shares of common stock upon
conversion of Series A Preferred Stock and the exercise of warrants to purchase
common stock of our report dated July 25, 1996, except for Note 9 as to which
the date is September 25, 1996, with respect to the consolidated financial
statements of Somatix Therapy Corporation included in this Annual Report on Form
10-K for the year ended June 30, 1996.

                                            ERNST & YOUNG LLP

Walnut Creek, California
September 25, 1996




<TABLE> <S> <C>

<ARTICLE> 5
<CIK> 0000791925
<NAME> SOMATIX
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JUN-30-1996
<PERIOD-START>                             JUL-01-1995
<PERIOD-END>                               JUN-30-1996
<EXCHANGE-RATE>                                      1
<CASH>                                           6,703
<SECURITIES>                                     7,738
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                15,330
<PP&E>                                          13,123
<DEPRECIATION>                                  10,459
<TOTAL-ASSETS>                                  19,370
<CURRENT-LIABILITIES>                            4,867
<BONDS>                                          1,217
                                0
                                          2
<COMMON>                                           244
<OTHER-SE>                                     182,118
<TOTAL-LIABILITY-AND-EQUITY>                    19,370
<SALES>                                              0
<TOTAL-REVENUES>                                     0
<CGS>                                                0
<TOTAL-COSTS>                                   21,544
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                               (21,544)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (20,688)
<EPS-PRIMARY>                                   (0.90)
<EPS-DILUTED>                                        0
        


</TABLE>


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