GENZYME TRANSGENICS CORP
10-K, 2000-04-03
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
Previous: 3TEC ENERGY CORP, 8-K, 2000-04-03
Next: SOGEN FUNDS INC, 485APOS, 2000-04-03



<PAGE>
- - --------------------------------------------------------------------------------
- - --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------

                                   FORM 10-K

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

FOR THE FISCAL YEAR ENDED JANUARY 2, 2000            COMMISSION FILE NO. 0-21794
                            ------------------------

                        GENZYME TRANSGENICS CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

<TABLE>
<S>                                      <C>
          MASSACHUSETTS                               04-3186494
 (STATE OR OTHER JURISDICTION OF          (IRS EMPLOYER IDENTIFICATION NO.)
 INCORPORATION OR ORGANIZATION)

175 CROSSING BOULEVARD, SUITE 410                       01702
    FRAMINGHAM, MASSACHUSETTS                         (ZIP CODE)
 (ADDRESS OF PRINCIPAL EXECUTIVE
            OFFICES)
</TABLE>

                                 (508) 620-9700
              (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE)
                            ------------------------

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

<TABLE>
<CAPTION>
TITLE OF EACH  NAME OF EACH EXCHANGE
    CLASS       ON WHICH REGISTERED
- - -------------  ---------------------
<S>            <C>
    None               None
</TABLE>

          Securities registered pursuant to Section 12(g) of the Act:
                         Common Stock, par value $0.01
                            ------------------------

    Indicate by check mark whether the Registrant: (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months 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 amendment to this
Form 10-K. [ ]

    Aggregate market value of voting stock held by non-affiliates of the
Registrant as of March 20, 2000: $478,815,576

    Number of shares of the Registrant's Common Stock outstanding as of
March 20, 2000: 28,487,880
                            ------------------------

                      DOCUMENTS INCORPORATED BY REFERENCE

    Portions of the Registrant's Proxy Statement for the Annual Meeting of
Stockholders to be held May 24, 2000 are incorporated by reference into
Part III of this Form 10-K.

- - --------------------------------------------------------------------------------
- - --------------------------------------------------------------------------------
<PAGE>
ITEM 1. BUSINESS

OVERVIEW

    Genzyme Transgenics Corporation ("GTC" or the "Company") is a leader in the
application of transgenic technology to the development and production of
recombinant proteins for therapeutic and other biomedical uses. To date, GTC has
produced more than 60 such proteins, 45 through collaborations with various
commercial and academic organizations and 15 independently. More than half of
the transgenic proteins actively under development by the Company are monoclonal
antibodies/Ig fusion proteins. For its lead compound, Antithrombin III
("ATIII"), the Company has completed one of two identical Phase III clinical
studies for the treatment of heparin resistance in patients undergoing
cardiopulmonary bypass ("CPB") procedures. GTC also owns and operates a leading
preclinical contract research organization ("CRO"), Primedica Corporation
("Primedica"), which provides services such as preclinical efficacy and safety
testing, IN VITRO testing and formulation development to pharmaceutical,
biotechnology, medical device and other companies.

    GTC produces recombinant proteins by inserting into the genetic material of
an animal embryo a specific DNA sequence that directs the production of a
desired protein in the milk of transgenic offspring. The Company believes that
transgenic production offers substantial economic and technological advantages
in comparison to traditional protein production systems, such as cell culture
and microbial systems. These advantages include reduced capital expenditures,
greater flexibility in timing capital investment and lower direct production
cost per unit. In the case of certain complex proteins, including Ig fusion
proteins, transgenic production may represent the only technologically and
economically feasible method of commercial production. For proteins currently
derived from pooled human plasma, transgenic production provides an alternative
source with reduced risk of transmission of human viruses and other known
adventitious agents. Of the 60 transgenic proteins produced to date, GTC has
expressed 40 proteins at levels of one gram per liter or higher in mice, 11 of
which have also been expressed in goats at levels greater than one gram per
liter. These expression levels are substantially higher than those typically
achieved for comparable proteins in traditional protein production systems.

    The Company's primary focus is on using transgenic technology to produce
monoclonal antibodies. These therapeutics are likely to be required in
relatively large and repeated doses for chronic diseases such as rheumatoid
arthritis, other autoimmune diseases and cancer. The economic and technological
advantages of transgenic technology make it well suited to produce the large
amount of proteins anticipated for therapeutic use of monoclonal antibodies. By
mid-1999, 14 monoclonal antibodies had been approved for use in the United
States, nine for use as human therapeutics and five for diagnostic uses. The
estimated 1999 revenues for the six highest selling therapeutic antibodies
ReoPro-Registered Trademark-, Rituxan-Registered Trademark-,
Synagis-Registered Trademark-, Herceptin-Registered Trademark-,
Remicade-Registered Trademark- and Zenapax-Registered Trademark- are
$1.3 billion. More than 30 monoclonal antibody candidates are now in clinical
trials and over 200 are reported to be in preclinical development. The Company
believes that in many cases the yearly requirement for production of these
potential therapeutics will exceed 100 kilograms and may approach 300 to 1,000
kilograms. Transgenic production may provide the only commercially viable means
to meet the large projected volume requirements of these therapeutics.

    The Company has several partnerships with pharmaceutical and other
biotechnology companies to develop monoclonal antibodies/Ig fusion proteins
transgenically. GTC's corporate partners include Bristol-Myers Squibb, Elan,
Centocor, Alexion and BASF Knoll. To date, the Company has formed more than a
dozen collaboration agreements which generally provide for transgenic production
of limited quantities of targeted proteins in exchange for development fees and
milestone payments and, in some cases, anticipate the payment of royalties on
product sales upon commercialization. Following demonstration of comparability
of the transgenic product to a version of the product produced in cell culture,
the Company intends to negotiate commercialization agreements that are designed
to allow the Company to participate in the success of the product through
equity, royalties and supply commitments. The Company has been granted

                                       1
<PAGE>
several patents covering the production of monoclonal and assembled antibodies
in the milk of transgenic mammals, which it believes establishes a strong
proprietary position in the field.

    Proteins traditionally sourced from human plasma provide other opportunities
for high volume transgenic protein production. The Company is developing a
transgenic version of ATIII, a protein normally found in human serum, in a joint
venture with Genzyme Corporation ("Genzyme"). When bound to other blood proteins
that function to regulate clotting, ATIII acts as an anticoagulant. Worldwide
sales of plasma derived ATIII to treat hereditary and acquired ATIII deficiency
are approximately $230 million. The Company believes transgenic ATIII may
represent a more attractive product than plasma sourced ATIII in light of safety
considerations, the limited volume of ATIII available from plasma and the
impracticality of producing sufficient quantities of recombinant ATIII by cell
culture methods. The Company has developed a goat herd producing a transgenic
version of ATIII, which is now in clinical evaluation in two identical, double
blinded Phase III clinical trials. The first of these studies was completed in
late 1999, and the primary clinical endpoint was met. Patient enrollment in the
second study is expected to be completed in the first quarter of 2000. These
clinical trials have targeted treatment of heparin resistant heart disease
patients undergoing cardiopulmonary bypass surgeries, with a strategy of seeking
approvals for broader indications after receipt of initial marketing approval.

    Another plasma protein under development by GTC is Human Serum Albumin
("HSA"), which is being developed with Fresenius AG. The therapeutic use of HSA
is indicated in situations of blood loss and decreased blood albumin levels
which can occur during shock, serious burns, pre- and post-operative conditions,
congestive heart failure and gastric, liver and intestinal malfunctions. HSA is
currently produced by human plasma fractionation, with current worldwide sales
of approximately $1 billion. During 1999, the Company achieved several
milestones under this collaboration, including demonstration of expression of
HSA in the milk of transgenic cattle at a concentration that is consistent with
making it a commercially viable product. The Company is also developing
transgenic production processes for other proteins, including a malaria
merozoite surface protein ("MSP-1") for use in a malaria vaccine.

    GTC's other business, Primedica, is focused on enabling its clients to meet
regulatory testing and other product development needs quickly and effectively
by offering a fully integrated line of preclinical CRO services. Primedica's
laboratories provide high value, scientifically differentiated services to
clients, including preclinical efficacy testing, experimental surgery,
photobiology and reproductive toxicology testing as well as formulation
development. Primedica uses its technological capabilities to introduce new
services that improve the ability of its customers to develop their products
successfully. Primedica's comprehensive programs link its preclinical and
manufacturing support services to reduce the time and expense of bringing new
therapeutics or other products to market.

TRANSGENIC BUSINESS

OVERVIEW

    A growing number of recombinant proteins are being developed by
pharmaceutical and biotechnology companies for therapeutic and diagnostic
applications. Many of these proteins have proven difficult or expensive to
produce in the quantities required using traditional protein production systems,
such as bacteria, yeast or mammalian cell cultures. Moreover, bacteria and yeast
systems cannot produce many complex proteins. While mammalian cell cultures can
produce most of these complex proteins, these cells are generally more difficult
and expensive to grow and often produce lower volumes of protein, or the
proteins may not be secreted by the cells into the culture medium, thereby
complicating recovery and purification. Proteins produced by the Company through
transgenic technology have been expressed at concentrations substantially higher
than those typically achieved using traditional production methods.

    Transgenic technology uses IN VITRO microinjection or other techniques to
introduce a genetically engineered segment of exogenous DNA (an "expression
vector") into the genetic material of a fertilized egg or early stage animal
embryo. Two types of genetic instructions are incorporated into the expression

                                       2
<PAGE>
vector: the coding sequence and the promoter sequence. Coding sequences instruct
the cells of the animal to express a specified protein. Promoter sequences
direct the expression of proteins at appropriate times and by specific tissues
or cell types. GTC utilizes promoter sequences that direct the expression of
specific proteins in the mammary gland during lactation. After microinjection of
the exogenous DNA, the modified embryo is then transferred to a recipient
female. Transgenes are successfully integrated into the genetic makeup of only a
small percentage of the embryos that are microinjected; therefore multiple
microinjection candidates are required. If successful, the resulting animal,
when mature and lactating, will express the desired protein. Once established in
the first generation of transgenic animals, the transgene is transmitted like
other genetic traits to future generations through traditional breeding with
either non-transgenic or other transgenic animals. To date, the Company has
produced such proteins principally using goats, which offer an attractive
combination of large milk volumes, relatively short generational time periods
and ease of handling and milking.

    GTC believes that for certain proteins required in extremely large amounts,
such as HSA, transgenic cows might be required. Due to the long gestation and
maturation periods of large dairy animals, microinjection is an inefficient
method to produce transgenic cows. Therefore, the Company believes that cloning
may accelerate transgenic biopharmaceutical development because cloning offers a
method of producing a large number of transgenic animals in one generation. GTC
has signed an exclusive, worldwide licensing agreement with Advanced Cell
Technologies, Inc. ("ACT") allowing GTC to utilize ACT's patented technology for
the development of biopharmaceuticals in the milk of all cloned transgenic
mammals. The Company believes ACT's proprietary technology, when coupled with
GTC's transgenic technology, will provide additional patentable approaches to
efficiently create cloned transgenic animals. To date, the Company has cloned
ten cows.

ADVANTAGES OF TRANSGENIC TECHNOLOGY

    The Company believes that its current and future partners will elect to
employ transgenic technology for the production of recombinant proteins in cases
where transgenic technology offers economic and technological advantages over
other production systems. These advantages, any one of which may be critical to
the decision to proceed with a particular development project, include:

    - LOWER CAPITAL INVESTMENT. Creating a herd and providing appropriate dairy
      facilities can be accomplished with substantially less cost than building
      a cell culture bioreactor facility.

    - IMPROVED RISK MANAGEMENT OF CAPITAL INVESTMENT. Transgenic herd production
      offers capacity flexibility and relatively short lead times for scale up.
      As a result, in contrast to the need for early commitment to bioreactor
      production capacity, the Company's partners can delay those commitments
      (and the corresponding capital investment) to later stages of the
      development project when they may have more definitive product and market
      information.

    - PREDICTABILITY OF PRODUCTION. In contrast to cell culture production
      systems, transgenic production systems exhibit greater predictability of
      yield at large volume production. This offers GTC's partners greater
      assurance of the ability to produce product quantities sufficient for
      advanced clinical trials and product launch.

    - LOWER COST OF GOODS. Economic factors unique to transgenic production
      lower the ultimate cost of goods in most cases. High protein expression
      levels in transgenic animals and efficiency in purification result in the
      cost of transgenically produced products, in most cases, being
      substantially lower than that of a cell culture derived product. As
      further improvements are made in the downstream purification process, GTC
      anticipates that the cost of the transgenically produced product will
      decline even further.

    - TECHNOLOGICAL ENABLEMENT. Transgenic technology offers the ability to
      produce certain biotherapeutics which cannot be made in a commercially
      feasible manner in any other system. The

                                       3
<PAGE>
      suitability of transgenic production for high-volume proteins requiring
      more than 100 kilograms per year is widely acknowledged. In addition, GTC
      has achieved the same consistent expression rates with complex molecules,
      which may not be producible in cell cultures at all. This accomplishment,
      in conjunction with the favorable economics of herd development, means
      that for some complex proteins with low-volume demand, transgenics may be
      as viable a production system as it is for other proteins that require
      1,000 kilograms or more annually.

TRANSGENIC DEVELOPMENT PROCESS

    GTC's development of a typical transgenic protein is designed to proceed in
a logical sequence of three major steps:

    - FIRST STEP. Using the DNA provided by the partner, GTC develops founder
      goats transgenic for a particular protein. The Company employs a standard
      DNA microinjection process to produce a transgenic goat. The first animals
      are born five months after microinjection.

    - SECOND STEP. GTC and the partner collaborate on the development of a pilot
      downstream process to purify the protein, after which GTC provides
      preclinical and clinical samples. After GTC provides protein samples from
      transgenic milk to the partner for initial purification and
      characterization, GTC and the partner begin a collaborative effort to
      establish a commercially robust purification process for the protein. This
      enables substantial amounts of material to be delivered for preclinical
      studies and initial human clinical studies. Next, GTC initiates an initial
      scale up of the transgenic herd making 6 to 10 animals that are capable of
      producing sufficient product for use in expanded clinical studies.

    - THIRD STEP. GTC provides initial quantities of product while working with
      the partner to develop cost and timing estimates for commercialization.
      Based on these estimates, the partner will make capital commitments to
      enable GTC to provide sufficient facility capacities specifically for the
      partner's product including one or several barns for housing and scaling
      up the herd, facilities for collection of milk and initial processing.
      Simultaneously, GTC will begin scaling up the production herd to breed a
      sufficient number of animals to meet forecasted production requirements.
      GTC anticipates that its future commercial supply agreements will provide
      for the transfer of intermediate bulk to the customer or designated
      processor for further processing to finished product.

DEVELOPMENT PROGRAMS

    GTC's strategy is to commercially produce proteins using transgenic
technology primarily by entering into collaboration agreements with
biotechnology and pharmaceutical companies. To date, the Company has formed more
than a dozen collaboration agreements which generally provide for transgenic
production of limited quantities of targeted proteins in exchange for
development fees and milestone payments and, in some cases, anticipate the
payment of royalties on product sales upon commercialization. Following
demonstration of comparability of the transgenic product, the Company intends to
negotiate commercialization agreements that are designed to allow the Company to
participate in the success of the product through milestone payments, royalties
and supply commitments.

    The products covered by these partnerships encompass a broad range of
indications and are currently in various stages of development. Many of GTC's
collaborators are marketing or engaging in clinical trials with product sourced
through traditional protein production systems and are considering transitioning
to a transgenically produced product. In most of these collaborations, GTC
benefits from the partner's preclinical development experience in working with a
particular protein, and in cases where a recombinant or plasma-derived product
is in clinical trials or on the market, the Company believes the regulatory
approval process for the transgenic product will be facilitated by the partner's
experience with the initial product.

                                       4
<PAGE>
MONOCLONAL ANTIBODIES

    Monoclonal antibodies represent one of the biotechnology industry's greatest
successes. Medical researchers have now developed a better understanding of the
critical variables for specificity and binding of the antibody, targets likely
to affect disease progression and clinical conditions amenable to treatment with
systemic biologic intervention. As a result, the last several years have
witnessed the clinical success, regulatory approval and commercial launch of
several breakthrough monoclonal antibody therapies, including
ReoPro-Registered Trademark- for use in various acute cardiac conditions,
Rituxan-Registered Trademark- for B-cell non-Hodgkin's lymphoma,
Synagis-Registered Trademark- for treatment of viral respiratory disease in
premature babies, Herceptin-Registered Trademark- for breast cancer,
Remicade-Registered Trademark- for use in Crohn's disease and rheumatoid
arthritis and Zenapax-Registered Trademark- for acute transplant rejection.
These clinical successes, the availability of technologies for making fully
human molecules and drug discovery technologies that identify potential antibody
targets, will continue to drive the development of new antibody-based
therapeutics.

    Therapeutic antibodies are typically administered in larger doses than other
protein therapeutics and in repeated doses to treat chronic illnesses. Their
continued success is driving the need for commercially feasible production
methods yielding significantly higher quantities than currently available using
traditional protein production methods. While the annual worldwide requirement
of a typical recombinant protein may approach 10 kilograms, the Company believes
that many antibodies will require supplies in excess of 100 kilograms annually.
Current cell culture methods (the only traditional method available for
producing monoclonal antibodies) generally cannot produce the requisite high
volumes needed for antibody therapeutics, are not economically feasible and
require significant capital investment. The Company believes that the high
expression levels which can be achieved using transgenic technology will enable
the pharmaceutical industry to meet these market demands.

    GTC is actively participating in the field of monoclonal antibodies through
a number of collaborations. The Company is developing a transgenic version of
Remicade-Registered Trademark- in a collaboration with Centocor. Also, GTC is
developing transgenic versions of eight additional monoclonal antibodies/Ig
fusion molecules, the cell culture versions of which are currently in clinical
trials, including D2E7 and MAK195 for BASF, CTLA4Ig and an unnamed Ig fusion
molecule for Bristol-Myers Squibb, Antegren for Elan, BR96 for Seattle Genetics,
PRO542 for Progenics and a therapeutic recombinant protein for Alexion. The
indications for these products include arthritis, HIV/AIDS, cancer and
autoimmune diseases. The status of the cell culture and transgenic versions of
these products is shown in the chart below. In these partnerships, the Company
provides material for the partners' clinical trials, while the partners retain
the risk and expense of conducting the trials.

                                       5
<PAGE>
    The following chart contains a summary of the Company's most active
monoclonal antibody/Ig fusion protein development programs:
<TABLE>
<CAPTION>
                                                                         DEVELOPMENT STAGE
PRODUCT                                                                   OF CELL CULTURE       DEVELOPMENT STAGE OF
NAME                         PRODUCT TYPE             INDICATION              PRODUCT            TRANSGENIC PRODUCT
- - -------                 ----------------------   ---------------------   ------------------   ------------------------
<S>                     <C>                      <C>                     <C>                  <C>
Remicade-Registered Trademark-; Monoclonal antibody Crohn's Disease;     Marketed             Preclinical; Transgenic
                                                 Rheumatoid Arthritis                         goats in development

D2E7                    Fully human monoclonal   Rheumatoid Arthritis    Phase II clinicals   Preclinical; Transgenic
                        antibody                                                              goats in development

Antegren-Registered Trademark-; Humanized monoclonal Neurological        Phase II clinicals   Preclinical; Transgenic
                        antibody                 Disorders                                    goats in development

CTLA4Ig                 Immunoglobulin fusion/   Rheumatoid Arthritis    Phase II clinicals   Preclinical; Transgenic
                        soluble receptor                                                      goats in development

Undisclosed             Immunoglobulin fusion    Organ Transplant        Phase II clinicals   Preclinical; Transgenic
                        protein                  Rejection; Autoimmune                        goats in development
                                                 Disorders

Undisclosed             Monoclonal antibody      Undisclosed             Undisclosed          Preclinical; Transgenic
                                                                                              goats in development

PRO542                  CD4/Immunoglobulin       HIV/AIDS                Phase II clinicals   Preclinical; Transgenic
                        fusion antibody                                                       mice in development

Undisclosed             Monoclonal antibodies    Undisclosed             Research             Research/partnership for
                        and therapeutic                                                       development of
                        proteins                                                              therapeutic drug targets

<CAPTION>

PRODUCT
NAME                       PARTNER
- - -------                ---------------
<S>                    <C>
Remicade-Registered T  Centocor
D2E7                   BASF/Knoll
Antegren-Registered T  Elan
                       Pharmaceuticals
CTLA4Ig                Bristol-Myers
                       Squibb
Undisclosed            Bristol-Myers
                       Squibb
Undisclosed            Alexion
PRO542                 Progenics
Undisclosed            Millennium
                       Pharmaceuticals
</TABLE>

PLASMA DERIVED PROTEINS

    ANTITHROMBIN III.  ATIII is a protein normally found in human serum, that
when bound to heparin, acts as an anticoagulant. Decreased levels of ATIII are
found in individuals who have either a hereditary or an acquired deficiency of
ATIII. The hereditary deficiency has an incidence rate of 1 in 2,000 to 1 in
20,000. Individuals with hereditary ATIII deficiency have an increased tendency
toward blood clots (thromboses) and are treated with ATIII replacement therapy
during periods when they are at high risk for clots, such as during surgery.
Acquired ATIII deficiency may occur if there is a decrease in the amount of
ATIII produced, an increase in the rate of ATIII consumption or an abnormal loss
of ATIII from the circulation. Examples of conditions in which acquired ATIII
deficiency may occur are acute liver failure, disseminated intravascular
coagulation, sepsis and septic shock, burns, multiple organ failure, bone marrow
or organ transplantation and hemodialysis.

    GTC believes transgenic ATIII may represent a more attractive therapeutic
than the current plasma derived product in light of the risks of viral
transmission from pooled plasma products in general, the limited volume of ATIII
currently available from plasma and the impracticality of producing sufficient
quantities of ATIII in cell culture systems. The Company also believes that a
lower cost, higher volume alternative to plasma derived ATIII may further expand
the therapeutic use of ATIII.

    The Company filed an Investigational New Drug application ("IND") with the
FDA and is evaluating use of transgenic ATIII as a potential treatment for ATIII
deficiency that occurs in certain patients with heart disease. Patients
undergoing cardiopulmonary bypass ("CPB") surgery require anticoagulation with
heparin to prevent clotting, which can occur when blood comes into contact with
the tubing of the heart-lung machine performing the heart's function during
surgery. Patients with heparin resistance generally do not respond adequately to
these heparin treatments. Treatments of these patients with fresh frozen plasma
is one option to restore heparin sensitivity and achieve adequate
anticoagulation to permit initiation of CPB. ATIII deficiency is a key factor in
heparin resistance because heparin requires ATIII for effective anticoagulation.
The Company has adopted a clinical strategy of initially targeting heparin
resistant patients undergoing CPB with the plan of seeking approvals for
transgenic ATIII in broader

                                       6
<PAGE>
indications after initial marketing approval is obtained. A Phase II clinical
study was completed which confirmed the safety profile of transgenic ATIII at
all doses administered and supported its ability to enhance anticoagulation in
cardiopulmonary bypass surgery patients. The study also demonstrated that
transgenic ATIII at doses of 50 units per kilogram or higher maintained ATIII
activity at 100% or greater for the duration of CPB.

    Two identical, double blinded, randomized placebo-controlled Phase III
clinical trials began in the second quarter of 1998. These studies, which
include 52 patients each, were designed to assess the activity of ATIII in
restoring heparin sensitivity among heparin-resistant patients undergoing
cardiac surgery requiring CPB. The first study, conducted at six medical centers
in Germany and the United Kingdom, has been completed, and the primary clinical
endpoint was met. Seventy-nine percent of the patients who received ATIII did
not require administration of fresh frozen plasma before undergoing CPB surgery
in comparison to only eight percent of the placebo group. In addition to
achieving statistical significance on the primary endpoint, the trial also
achieved statistical significance on two out of three secondary endpoints.
Secondary endpoints included maintenance of normal ATIII levels and changes in
two biochemical markers of coagulation: D-dimer and fibrin monomer. Moreover,
the drug was well tolerated by patients. Patient enrollment in the second study,
which is being conducted in the United States and Europe, is expected to be
completed in the first quarter of 2000.

    GTC and Genzyme have established the ATIII LLC joint venture for the
marketing and distribution of transgenic ATIII in all territories other than
Asia (which is covered by a joint venture between GTC and Sumitomo Metal
Industries Ltd.). Under the terms of the joint venture agreement, Genzyme will
fund 70% of the development costs of transgenic ATIII up to a maximum of
$33 million. The Company will fund the remaining 30% of these costs. Development
costs in excess of these amounts will be funded equally by the partners. Each of
the Company and Genzyme will also make capital contributions to the ATIII LLC
sufficient to pay 50% each of all new facility costs to be incurred. In addition
to the funding, both partners will contribute manufacturing, marketing and other
resources to the ATIII LLC at cost. Genzyme and GTC each own 50% of the venture,
although Genzyme is obligated to make certain milestone payments to GTC if and
when transgenic ATIII has been approved by the FDA and certain sales levels have
been reached. Profits and losses are shared according to ownership percentages.
The agreement covers all territories other than Asia.

    The ATIII LLC has initiated a collaboration with Genzyme Molecular Oncology,
a division of Genzyme, to jointly develop a form of transgenic ATIII for
potential application as an angiogenesis inhibitor in the field of oncology.
This research stage collaboration is based on a discovery by Dr. Judah Folkman
from Children's Hospital, Boston, Massachusetts that certain conformations of
ATIII, referred to as anti-angiogenic ATIII, inhibit angiogenesis IN VITRO and
inhibit tumor growth in mice. Potential anti-angiogenic applications of
transgenic ATIII, outside the field of oncology, may be developed by the ATIII
LLC.

    ATIII LLC is developing transgenic ATIII under a royalty-bearing license
from Centeon, a wholly owned subsidiary of Aventis SA and the successor to
Behringwerke AG.

    HUMAN SERUM ALBUMIN.  HSA is the protein principally responsible for
maintaining oncotic pressure, plasma volume and the balance of fluids in blood.
It is critical to the transport of amino acids, fatty acids and hormones in the
blood stream. The therapeutic use of HSA is indicated in situations of blood
loss and decreased blood albumin levels which can occur during shock, serious
burns, pre- and post-operative conditions, congestive heart failure and gastric,
liver and intestinal malfunctions. HSA is currently produced by human plasma
fractionation, with current worldwide sales of approximately $1 billion.

    GTC has expressed transgenic HSA in mice at levels equivalent to or greater
than 35 grams per liter and, in 1999, successfully produced transgenic cattle
expressing this protein in their milk at commercially feasible levels. An
individual cow is expected to produce 80 kilograms of albumin annually. GTC
believes that this level of production should provide the Company with the
ability to produce HSA at costs

                                       7
<PAGE>
competitive with albumin sourced from human blood, and in the amounts required
to meet market demand. GTC has refined its purification process for transgenic
HSA and developed a detailed economic model for its commercial production. The
Company has entered into an agreement with Fresenius AG of Bad Homburg, Germany,
to further develop and commercialize transgenic HSA.

OTHER DEVELOPMENT PROJECTS

    MALARIA VACCINE.  GTC's transgenic expression system has the potential to
express the correct, immunogenic protein for use as a malaria vaccine both
economically and on a large scale. Malaria is a disease that has an annual
incidence of more than 300 million people worldwide and results in several
million deaths annually. GTC is working with the National Institutes of Health
(the "NIH") and the Federal Malaria Vaccine Coordinating Committee to express a
malaria protein, which is considered a promising vaccine candidate and to
examine the options for commercializing the vaccine. The Company has entered
into a Collaborative Research and Development Agreement with the NIH and during
1998 achieved high level expression of the candidate vaccine malaria antigen,
MSP-1, in the milk of transgenic mice. Primate immunogenicity studies are
planned for early 2000.

    SECOND GENERATION BIOPHARMACEUTICALS.  A potential application for
transgenic technology is to identify and develop unique transgenic constructs
which may represent line extensions for recombinant biotherapeutics. Approved
recombinant therapeutics, many of which have established significant markets,
may become vulnerable to competition from novel versions which may be more cost
effective and/or demonstrate improved efficacy, allow more convenient routes of
administration, or have extended clinical applications. In 1998, GTC signed an
initial collaboration agreement with Eli Lilly to evaluate a novel second
generation biotherapeutic for which GTC provided intellectual property and know
how. While good scientific progress has been achieved in the program, Lilly has
elected not to prioritize the project as a development candidate. The project
and the data derived from Lilly's evaluation have reverted to the Company. GTC
is in discussions with other parties to develop this candidate product.

PRIMEDICA CORPORATION CRO SERVICES

    GTC acquired its CRO capabilities through the acquisitions of TSI
Corporation in October 1994 and BioDevelopment Laboratories, Inc. in June 1995.
In February 1998, GTC reorganized its CRO businesses under its wholly owned
subsidiary, Primedica, to provide a unified identity and a dedicated structure
for further growth of its CRO business. Primedica conducts its CRO services
through four laboratories: Primedica Worcester (Massachusetts), Primedica
Redfield (Arkansas), Primedica Rockville (Maryland), as well as Primedica Argus
(Pennsylvania). This business currently employs more than 550 people.

    Primedica believes that it has a broader set of value-added services than
any of its competitors and is differentiated by its ability to offer
comprehensive development programs. Primedica has the ability to perform
virtually all of the safety, efficacy and quality control testing, as well as to
provide the regulatory affairs expertise necessary to bring a client's early
research-stage product through preclinical testing. Fields in which Primedica
provides contract services include:

    - PRODUCT SAFETY TESTING. Primedica conducts safety studies using
      toxicological, pathological and specialty endpoints, such as physiologic,
      pharmacologic and mechanistic evaluations and is a recognized world leader
      in conducting and evaluating reproductive and developmental toxicology
      studies.

    - METABOLISM AND PHARMACOKINETICS. Primedica's metabolism group evaluates
      the distribution and impact of a drug and its metabolites using
      sophisticated sampling techniques, metabolite profiling and
      identification, tissue distribution studies and other techniques to
      determine tissue half-life, clearance rates and potential sites of drug
      toxicity after systemic exposure.

                                       8
<PAGE>
    - COMPREHENSIVE MANUFACTURING SERVICES. Primedica specializes in
      biopharmaceutical process development and manufacturing for
      small-to-moderate batch sizes. These services include early cell line
      development and optimization, production, down stream processing and fill
      and finish services.

    - DELIVERY AND DEVELOPMENT TECHNOLOGY SERVICES. These services include
      targeted and controlled drug delivery, feasibility and preformulation
      support, as well as formulation development for various routes of
      administration.

    Primedica believes the key to sustaining superior performance in this field
will be in providing services in close, collaborative relationship in which
customers are able to receive scientific services from Primedica at levels equal
to or greater than that which they could receive from an in-house department.
Toward this end, Primedica has also made significant investments in people,
technology and programs since GTC's acquisition of the CRO services.

RELATIONSHIP WITH GENZYME

    EQUITY POSITION.  Genzyme is the largest single stockholder of the Company,
holding 8,476,386 shares of common stock as of March 20, 2000, which represents
approximately 31% of the outstanding GTC common stock, Genzyme also holds four
common stock purchase warrants exercisable for 145,000, 288,000, 55,833 and
29,491 shares of GTC common stock at prices of $2.84, $4.88, $6.30 and $6.30 per
share, respectively, the market price of the common stock at the time the
respective Genzyme warrants were issued. All of the shares held by Genzyme
(including shares issuable on exercise of Genzyme warrants) are entitled to
certain registration rights.

    TECHNOLOGY TRANSFER AGREEMENT.  Under the Technology Transfer Agreement
dated May 1, 1993, Genzyme transferred substantially all of its transgenic
assets and liabilities to GTC, assigned its relevant contracts and licensed to
the Company technology owned or controlled by it and relating to the production
of recombinant proteins in the milk of transgenic animals (the "Field") and the
purification of proteins produced in that manner. The license is worldwide and
royalty free as to Genzyme, although GTC is obligated to Genzyme's licensors for
any royalties due them. As long as Genzyme owns less than 50% of GTC, Genzyme
may use the transferred technology, or any other technology it subsequently
acquires relating to the Field, for internal purposes only without any royalty
obligation to the Company.

    R&D AGREEMENT.  Pursuant to a Research and Development Agreement dated
May 1, 1993, Genzyme and GTC agreed to provide research and development services
to the other relating, in the case of GTC, to transgenic production of
recombinant proteins and, in the case of Genzyme, to the purification of such
proteins. Each company receives payments from the other equal to the performing
party's fully allocated cost of such services, which can be no less than 80% of
the annual budgets established by the parties under the agreement on a month to
month basis, plus, in most cases, a fee equal to 10% of such costs. The
agreement expired on December 31, 1998 and the parties are continuing under this
agreement on a month-to-month basis.

    ATIII LLC.  In January 1998, the Company entered into a collaboration
agreement for the development of transgenic ATIII with Genzyme forming the ATIII
LLC joint venture. Under the terms of the agreement, Genzyme will fund 70% of
the development costs of transgenic ATIII up to a maximum of $33 million. The
Company will fund the remaining 30% of these costs. Development costs in excess
of these amounts will be funded equally by the partners. The Company and Genzyme
will also make capital contributions to the ATIII LLC sufficient to pay 50% each
of all new facility costs to be incurred. In addition to the funding, both
partners will contribute manufacturing, marketing and other resources to the
ATIII LLC at cost. Genzyme and GTC each own 50% of the venture, although Genzyme
is obligated to make certain milestone payments to GTC if and when transgenic
ATIII has been approved by the FDA and certain sales levels have been reached.
Profits and losses are shared according to ownership percentages. The agreement
covers all territories other than Asia.

                                       9
<PAGE>
    SERVICES AGREEMENT.  Under a services agreement between GTC and Genzyme, GTC
pays Genzyme a fixed monthly fee for basic laboratory and administrative support
services. The monthly fee is adjusted annually, based on the services to be
provided and changes in Genzyme's cost of providing the services. The services
agreement is self-renewing annually and may be terminated upon 90 days notice by
either party.

    CREDIT LINE GUARANTY, TERM LOAN GUARANTY AND LIEN.  Genzyme guarantees a
credit line and term loan with a commercial bank up to $24.6 million, expiring
in December 2001. The Company has agreed to reimburse Genzyme for any liability
Genzyme may incur under such guaranty and has granted Genzyme a first lien on
all of the Company's assets to secure such obligation.

OTHER STRATEGIC COLLABORATIONS

LONZA LTD.

    In May 1999, GTC entered into a letter of intent with Lonza Ltd. of Basel,
Switzerland to develop a commercial relationship whereby Lonza would provide to
GTC on a project by project basis, downstream purification capabilities
including process development and final product purification, thereby enabling
GTC to provide a complete package of services to its partners. Under the terms
of the letter of intent, once a GTC partner commits to production, Lonza will
provide the capital for purification facilities and equipment on commercial
terms typical for the biopharmaceutical manufacturing industry. GTC is currently
negotiating a definitive master agreement with Lonza which GTC anticipates will
incorporate the key business and financial terms contained in the letter of
intent including equity investments by Lonza in GTC upon the achievement of
certain milestones.

TUFTS UNIVERSITY SCHOOL OF VETERINARY MEDICINE

    Pursuant to a cooperation and licensing agreement, Tufts University School
of Veterinary Medicine ("Tufts") has agreed to work exclusively with GTC until
September 2000 in developing commercial applications of transgenic protein
production in milk. Tufts has also granted GTC a perpetual, non-exclusive
license to use certain proprietary microinjection technology and animal
husbandry techniques. Sales of products derived from transgenic goats produced
by Tufts, or from their offspring, are subject to royalties payable to Tufts.
The Company maintains a herd of approximately 100 goats at Tufts' facility in
Massachusetts.

SMIG JV

    GTC holds a 22% interest in a joint venture with Sumitomo Metal
Industries Ltd. (the "SMIG JV"). GTC has granted to the SMIG JV an exclusive
license in Asia to use GTC's transgenic technology to make, use and sell
transgenic products, including ATIII, until the later of 2008 or the expiration
of any applicable Japanese patent, subject to various reciprocal royalty
obligations.

PATENTS AND PROPRIETARY RIGHTS

    GTC has filed 20 patent applications which cover relevant portions of its
transgenic technology, several of which are covered by cross-licensing
agreements. GTC holds exclusive and nonexclusive licenses from Genzyme to rights
under a number of patent applications on file in the United States and
corresponding foreign patent applications relating to certain aspects of its
technology. GTC has a broad patent issued by the European Patent Office which
covers a DNA construct and its use in the production of proteins in the milk of
non-human, transgenic mammals. Other GTC applications as to specific proteins,
classes of proteins, techniques to enhance expression and purification
technologies remain pending. During 1998, the U.S. Patent and Trademark Office
awarded GTC four patents, one covering the purification of proteins from the
milk of transgenic animals, two more relating to the production of

                                       10
<PAGE>
monoclonal and assembled antibodies at commercial levels in the milk of
transgenic mammals and one covering the production of ATIII in the milk of
transgenic goats.

    GTC has exclusive and nonexclusive licenses to technologies owned by other
parties, including DNX, Inc. as to microinjection, Stanford University as to
gene transfer and Centeon L.L.C., as the successor to Behringwerke AG, as to
ATIII, as well as promoter cross-licenses in place with PPL Therapeutics PLC
("PPL") and Pharming B.V. ("Pharming"). Certain of the licenses require GTC to
pay royalties on sales of products which may be derived from or produced using
the licensed technology. The licenses generally extend for the life of any
applicable patent.

    The Company also relies upon trade secrets, know how and continuing
technological advances to develop and maintain its competitive position. In an
effort to maintain the confidentiality and ownership of trade secrets and
proprietary information, the Company requires employees, consultants and certain
collaborators to execute confidentiality and invention assignment agreements
upon commencement of a relationship with the Company.

COMPETITION

TRANSGENICS

    Many companies, including biotechnology and pharmaceutical companies, are
actively engaged in seeking efficient methods of producing proteins for
therapeutic or diagnostic applications. Two other companies known to GTC are
extensively engaged in the application of transgenic technology for the
production of proteins for therapeutic use in humans: Pharming and PPL.
Pharming, based in the Netherlands, is primarily engaged in the development of
recombinant proteins in the milk of transgenic cows, which are most suitable for
extremely high volume protein production. PPL, based in Scotland, utilizes
primarily sheep for transgenic protein production.

CRO SERVICES

    The worldwide markets for CRO services, manufacturing support services and
related development services are highly fragmented, involving several hundred
companies, as well as universities and governmental bodies. Competition in these
markets is based primarily on technological capabilities and reputation for
quality of products and services offered and perceived financial stability. In
certain market segments, price is also a significant competitive factor.

GOVERNMENT REGULATION

TRANSGENICS

    The manufacturing and marketing of GTC's potential products and certain
areas of research related to them are subject to regulation by governmental
authorities in the United States, including the FDA, the U.S. Department of
Agriculture (the "USDA") and the Environmental Protection Agency (the "EPA").
Comparable authorities are involved in other countries.

    To GTC's knowledge, no protein produced in the milk of a transgenic animal
has been submitted for final regulatory approval. However, the FDA issued its
Points to Consider in August 1995. Points to Consider, which are not regulations
or guidelines, are nonbinding published documents that represent the current
thinking of the FDA on a particular topic. Earlier in 1995, comparable
guidelines were issued by European regulatory authorities. GTC believes that its
programs satisfactorily address the issues raised by these documents and
generally views them as a very positive milestone in the acceptance of the
transgenic form of production. Based on discussions with the FDA and others, GTC
expects that the basic United States regulatory framework for the transgenic
production of recombinant proteins in animals will be similar to that described
in the Points to Consider.

                                       11
<PAGE>
    The FDA licenses biological products under the authority of the Public
Health Service ("PHS") Act. With respect to therapeutic biological products,
generally, the standard FDA approval process includes preclinical laboratory and
animal testing, submission of an IND to the FDA and completion of appropriate
human clinical trials to establish safety and effectiveness. Prior to passage of
the FDA Modernization Act of 1997 ("FDAMA"), applicants for a license to market
a biological product filed both an establishment license application (an "ELA")
and a product license application (a "PLA"). Since the passage of FDAMA, the FDA
has taken actions to make the licensing process for biological products more
consistent with the process for the approval of new drugs. Accordingly, after
October 20, 2000, all manufacturers seeking a license to market a biological
product in interstate commerce must file a single Biological License Application
(a "BLA"). PLAs and ELAs filed in the interim will be administratively handled
by the FDA as a BLA. If a manufacturer successfully demonstrates that the
biological product meets PHS standards, that is, that the product is safe, pure
and potent and that the facility in which it is manufactured meets standards
designed to ensure that the product continues to be safe, pure and potent, the
manufacturer will receive a biological license to market the product in
interstate commerce. The Company has already submitted an IND for ATIII to the
FDA and it is continuing Phase III clinical trials in the United States and
Europe. GTC expects to submit a BLA for ATIII; however, the approval process for
other proteins may be undertaken either by the Company, by a collaborator for
which the Company is producing proteins, or jointly, depending upon the nature
of the relationship involved.

CRO SERVICES

    Primedica and its customers are subject to a variety of regulatory
requirements intended to ensure the quality and integrity of their products and
services. The industry standard for conducting non-clinical testing is embodied
in regulations called Good Laboratory Practices ("GLPs"). GLPs have been adopted
by the EPA and the FDA and a number of foreign regulatory bodies. To help ensure
compliance, the Company maintains a strict quality assurance program at each
site to audit test data and conduct regular inspections of testing procedures
and facilities. Primedica also complies with FDA-established current GMPs.

    Primedica also maintains certain licenses and permits issued by federal,
state and local authorities relating to the operation of its current laboratory
and testing facilities, including those required for hazardous waste disposal,
the purchase, use and disposal of radioactive isotopes and the use of animals in
testing and research. These licenses and permits include licenses from the U.S.
Nuclear Regulatory Commission for the purchase, use and disposal of small
amounts of short-lived radioactive isotopes for research purposes. Primedica
also has registered with the Massachusetts Department of Environmental
Protection and the EPA as a Small Quantity Hazardous Waste Generator in
connection with its disposal of certain organic hazardous wastes used in
connection with its molecular biology and biomedical research. These wastes are
disposed of through a licensed hazardous waste transporter. The use and disposal
of chemicals is regulated under the Toxic Substances Control Act and other state
and federal legislation.

    Each of Primedica's laboratories is licensed by the USDA and state and local
authorities to house and use laboratory animals for biomedical research
purposes. The ability to continue using animals in testing and research is
dependent on continued compliance with the requirements of such licenses.
Primedica's Argus, Worcester and Rockville laboratories are also registered with
the U.S. Public Health Service to conduct biomedical research on laboratory
animals funded by the NIH and other federal agencies. Primedica's Argus,
Worcester and Redfield laboratories are also licensed by federal and state drug
enforcement agencies to procure and use controlled substances in research
programs involving laboratory animals.

    The Company's operations are also subject to federal, state and local laws,
rules, regulations and policies governing the use, generation, manufacture,
storage, air emission, effluent discharge, handling and disposal of certain
materials and waste, including, but not limited to, animal waste and waste
water.

                                       12
<PAGE>
RESEARCH AND DEVELOPMENT COSTS

    During its fiscal years ended January 2, 2000, January 3, 1999 and
December 28, 1997, GTC spent $15,092,000, $16,641,000 and $17,840,000,
respectively, on research and development. These costs include labor, materials
and supplies and overhead, the cost of operating the transgenics production
facility, as well as certain subcontracted research projects.

EMPLOYEES

    As of January 2, 2000, GTC employed 683 people, of which 121 are in
transgenics and 562 are in Primedica. Of GTC's total employees, 478 were engaged
in operations, 40 were engaged in research and development and 165 were engaged
in marketing and general administration. Of GTC's employees, approximately 38
have Ph.D. degrees, 1 has an M.D. degree and 13 have D.V.M. degrees. None of
GTC's employees are covered by collective bargaining agreements. GTC believes
its employee relations are satisfactory.

ITEM 1A. EXECUTIVE OFFICERS OF THE REGISTRANT

    The current executive officers of the Company and their respective ages and
positions are as follows:

<TABLE>
<CAPTION>
NAME                                          AGE                       POSITION
- - ----                                        --------   ------------------------------------------
<S>                                         <C>        <C>
James A. Geraghty.........................     45      Chairman of the Board
Sandra Nusinoff Lehrman, M.D..............     52      President and Chief Executive Officer
John B. Green.............................     46      Vice President, Chief Financial Officer
                                                       and Treasurer
Harry M. Meade............................     53      Vice President, Transgenics Research
Michael W. Young..........................     48      Vice President, Commercial Development
Peter H. Glick............................     36      President, Primedica Corporation
</TABLE>

    Mr. Geraghty was the President and Chief Executive Officer of GTC from the
date of its incorporation in February 1993 until July 1998. Since that time,
Mr. Geraghty has served as President of Genzyme Europe. He has been a director
of GTC since February 1993 and has been Chairman of the Board since
January 1998. Mr. Geraghty joined Genzyme in September 1992, where he was a Vice
President for Corporate Development and the General Manager of the transgenics
business unit until the incorporation of the Company.

    Dr. Lehrman has been the President and Chief Executive Officer of GTC since
July 1998. Prior to joining GTC, from 1983 to 1994 Dr. Lehrman held several
positions at Wellcome PLC, the last being International Director, Biotechnology
and Vice President, General Manager of Burroughs Wellcome Mfg., Inc., a
biopharmaceutical production subsidiary. She also served as Vice President, Drug
Development for Triangle Pharmaceuticals, Inc., an antiviral development company
until July 1996 and President of CytoTherapeutics, Inc., a biotechnology
company, before joining GTC.

    Mr. Green has been the Vice President and Chief Financial Officer of GTC
since December 1994 and Treasurer since August 1997. He has also served as Vice
President and Treasurer of TSI, a wholly owned subsidiary of GTC, since
March 1993 and as its Chief Financial Officer since December 1994. Prior to
that, he was Vice President and Assistant Treasurer of TSI from December 1989.

    Dr. Meade has been Vice President, Transgenics Research for GTC since
August 1994 and has served as Research Director of GTC since May 1993. Prior to
joining GTC, Dr. Meade was a Scientific Fellow at Genzyme, where he was
responsible for directing the transgenic molecular biology program. From 1981 to
March 1990, when he joined Genzyme, Dr. Meade was a Senior Scientist at
Biogen, Inc., a biotechnology company, where he worked on the technology
relating to the production of proteins in milk and was an inventor on the first
issued patent covering this process.

                                       13
<PAGE>
    Mr. Young has served as Vice President, Commercial Development since
November 1995 when he joined GTC. Prior to joining GTC, Mr. Young was Vice
President of Business Development for PerSeptive Biosystems from 1993 and Vice
President of Marketing of Verax Corporation from 1986 to 1993.

    Mr. Glick has been President of Primedica Corporation, a wholly-owned
subsidiary of GTC, since February 1998 and served as Vice President, Marketing
and Corporate Development of GTC from June 1995 to February 1998. Prior to that
he was Vice President, Corporate Development of GTC from October 1994 and of TSI
from June 1993. From January 1994 to January 1996, he also served as President
of Primedica's Rockville Laboratories subsidiary. From November 1991 to
May 1993, he was Director, Corporate Development of TSI. Prior to joining TSI,
he was a strategy consultant at Bain & Company.

ITEM 2.  PROPERTIES

    GTC's headquarters for the transgenics business is located in 12,468 square
feet of office space in Framingham, Massachusetts under a lease which expires in
March 2006. GTC's research facility for the transgenics business is located in
approximately 2,923 square feet of laboratory and office space leased from
Genzyme in Framingham, Massachusetts. This lease expired in May 1998, at which
time the lease automatically renewed, and continues to renew annually, on a
year-to-year basis until terminated by either party on 90 days' notice. (See
"Item 1--Business--Relationship with Genzyme.")

    GTC owns a 383-acre facility in central Massachusetts. This facility
contains 106,793 square feet of production, laboratory and administrative space
dedicated to its transgenic segment. The facility also currently houses more
than 1,500 goats. GTC believes its and Genzyme's current facilities are adequate
for significant further development of commercial transgenic products. GTC also
currently utilizes animal housing, care and treatment facilities operated by
Tufts in Massachusetts.

    Primedica also owns or leases sites for each of its testing laboratories.
The Company's Worcester laboratories occupy two facilities in Worcester,
Massachusetts, the largest of which is an approximately 110,000 square foot
preclinical testing facility, leased through March 2005. In addition, Primedica
owns an adjacent building that consists of 45,000 square feet, of which 35,400
square feet of space has been renovated for preclinical testing. The remaining
9,600 square feet is unrenovated shell space, which is available for future
expansion.

    In addition, Primedica owns and occupies a 68,000 square-foot preclinical
testing facility in Redfield, Arkansas; leases a 55,000 square-foot facility in
Horsham, Pennsylvania consisting of a 38,000 square foot preclinical testing
facility and 16,000 square feet of unrenovated expansion space, under a lease
which expires in June 2002, and occupies a 27,000 square-foot laboratory and
office facility in Rockville, Maryland, under a lease expiring in
December 2000. Following consolidation of its Massachusetts facilities into a
single facility in Worcester, Primedica leases three unoccupied facilities in
Massachusetts, a 10,500 square-foot laboratory facility in Cambridge,
Massachusetts under a lease that expires in October 2002, 5,000 square feet of
office space located in Milford, Massachusetts under a lease expiring in
October 2001 and 6,477 square feet of office space located in Waltham,
Massachusetts under a lease expiring in December 2003. Primedica is actively
attempting to sublease these facilities.

ITEM 3.  LEGAL PROCEEDINGS

    GTC is not a party to any material legal proceedings.

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

    During the fourth quarter of fiscal year 1999, no matter was submitted to a
vote of the security holders of the Company.

                                       14
<PAGE>
ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

    GTC's common stock commenced trading on July 9, 1993 on the Nasdaq National
Market System under the symbol GZTC. Quarterly high and low sales prices for the
stock as reported by the Nasdaq National Market System are shown below.

<TABLE>
<CAPTION>
                                                                 HIGH          LOW
                                                              ----------   -----------
<S>                                                           <C>          <C>
1998:
  1st Quarter...............................................  13 1/2                 9
  2nd Quarter...............................................  12 1/4                 7 11/16
  3rd Quarter...............................................   8                     4
  4th Quarter...............................................   7 1/4                 2 1/16

1999:
  1st Quarter...............................................   6 3/8                 3 3/4
  2nd Quarter...............................................   5 5/8                 3 1/8
  3rd Quarter...............................................   8 1/2                 4 1/2
  4th Quarter...............................................  13 1/8                 5 5/8
</TABLE>

    On March 20, 2000, there were approximately 710 shareholders of GTC of
record.

    The Company has never paid a cash dividend on its common stock and currently
expects that future earnings will be retained for use in its business.

    In November 1999, the Company completed a $6.6 million private placement of
Series B Convertible Preferred Stock (the "Series B Preferred Stock") to
Genzyme. The proceeds from this placement were used to redeem $6.6 million of
the Company's Series A Convertible Preferred Stock (the "Series A Preferred
Stock"). In connection with the issuance of Series B Preferred Stock, the
Company issued warrants to purchase 85,324 shares of the Company's common stock
at $6.30 per share to Genzyme. In February 2000, the Company issued a Notice of
Redemption to Genzyme for all outstanding shares of the Company's Series B
Preferred Stock. Prior to redemption, Genzyme converted the Series B Preferred
Stock into 1,048,021 shares of common stock on February 8, 2000. The Company
believes that the issuance of the Series B Preferred Stock, the related warrant
and the shares of common stock issued upon conversion of the Series B Preferred
Stock qualified as transactions by an issuer not involving a public offering
within the meaning of Section 4(2) of the Securities Act of 1933, as amended
(the "Securities Act"), based on the fact there was one holder.

    In March 2000, the Company issued a warrant call notice for outstanding
warrants to purchase 450,000 shares of common stock that had been issued in
connection with the Series A Preferred Stock. Each warrant had an exercise price
of $15.1563 per share. As of March 31, 2000, all the warrants were exercised
with proceeds to the Company of $6.8 million. The Company believes that the
issuance of the common stock upon exercise of the warrants qualified as a
transaction by an issuer not involving a public offering within the meaning of
Section 4(2) of the Securities Act.

ITEM 6.  SELECTED FINANCIAL DATA

    The selected financial data set forth below as of January 2, 2000 and
January 3, 1999 and for each of the three fiscal years in the period ended
January 2, 2000 are derived from the Company's consolidated financial statements
included elsewhere in this Report, which have been audited by
PricewaterhouseCoopers LLP, independent accountants. The selected financial data
set forth below as of December 28, 1997, December 29, 1996 and December 31,
1995, and for the years ended December 29, 1996 and December 31, 1995 are
derived from audited consolidated financial statements not included in this
Report.

    This data should be read in conjunction with the Company's consolidated
financial statements and related notes thereto under Item 8 of this Report and
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" under Item 7 of this Report.

                                       15
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA

                  (DOLLARS IN THOUSANDS EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                                               FOR THE FISCAL YEARS ENDED
                                                         ----------------------------------------------------------------------
                                                         JANUARY 2,    JANUARY 3,    DECEMBER 28,   DECEMBER 29,   DECEMBER 31,
                                                            2000          1999           1997           1996           1995
                                                         -----------   -----------   ------------   ------------   ------------
<S>                                                      <C>           <C>           <C>            <C>            <C>
STATEMENT OF OPERATIONS DATA:
Revenues:
  Services.............................................  $    54,959   $    50,816   $    43,417    $    38,496    $    26,399
  Sponsored research and development...................       13,825        11,596        19,521          8,338          6,022
                                                         -----------   -----------   -----------    -----------    -----------
                                                              68,784        62,412        62,938         46,834         32,421
Costs and expenses:
  Services.............................................       46,602        43,668        36,989         33,356         24,250
  Research and development.............................       15,092        16,641        17,840          8,684          6,394
  Selling, general and administrative..................       18,872        16,184        15,650         11,691          8,919
  Facility consolidation costs.........................        1,245            --            --             --             --
  Equity in loss of joint ventures.....................        3,797         4,285           811            356            713
                                                         -----------   -----------   -----------    -----------    -----------
                                                              85,608        80,778        71,290         54,087         40,276
                                                         -----------   -----------   -----------    -----------    -----------
Loss from continuing operations........................      (16,824)      (18,366)       (8,352)        (7,253)        (7,855)
Other income and (expenses):
  Interest income......................................           65           280           136             85             32
  Interest expense.....................................       (2,166)       (1,379)       (1,129)        (1,138)        (1,007)
  Other income.........................................          484           100            50            587            780
                                                         -----------   -----------   -----------    -----------    -----------
Loss from continuing operations before income taxes....      (18,441)      (19,365)       (9,295)        (7,719)        (8,050)
  Provision (benefit) for income taxes.................          320           225            48             27         (2,346)
                                                         -----------   -----------   -----------    -----------    -----------
Loss from continuing operations........................  $   (18,761)  $   (19,590)  $    (9,343)   $    (7,746)   $    (5,704)
Discontinued operations
  Income from discontinued clinical operations (less
    applicable taxes of $239)..........................           --            --            --             --            412
  Gain on disposal of clinical operations (less
    applicable income taxes of $3,401).................           --            --            --             --          1,159
                                                         -----------   -----------   -----------    -----------    -----------
Net loss...............................................  $   (18,761)  $   (19,590)  $    (9,343)   $    (7,746)   $    (4,133)
Dividends to preferred shareholders....................       (1,497)       (1,156)           --             --             --
                                                         -----------   -----------   -----------    -----------    -----------
Net loss available to common shareholders..............  $   (20,258)  $   (20,746)  $    (9,343)   $    (7,746)   $    (4,133)
                                                         ===========   ===========   ===========    ===========    ===========
Net loss available to common shareholders per weighted
  average number of common shares (basic and diluted):
  From continuing operations...........................  $     (1.02)  $     (1.15)  $     (0.54)   $     (0.52)   $     (0.48)
                                                         ===========   ===========   ===========    ===========    ===========
  Net loss.............................................  $     (1.02)  $     (1.15)  $     (0.54)   $     (0.52)   $     (0.35)
                                                         ===========   ===========   ===========    ===========    ===========
Weighted average number of shares outstanding (basic
  and diluted).........................................   19,876,904    17,978,677    17,253,292     14,801,725     11,788,542
</TABLE>

<TABLE>
<CAPTION>
                                                                                     AS OF
                                              -----------------------------------------------------------------------------------
                                              PRO FORMA(1)
                                               JANUARY 2,
                                                  2000       JANUARY 2,   JANUARY 3,   DECEMBER 28,   DECEMBER 29,   DECEMBER 31,
                                              (UNAUDITED)       2000         1999          1997           1996           1995
                                              ------------   ----------   ----------   ------------   ------------   ------------
<S>                                           <C>            <C>          <C>          <C>            <C>            <C>
BALANCE SHEET DATA:
  Cash and cash equivalents.................    $ 67,202      $  7,782     $11,740       $ 6,383        $ 8,894        $ 5,825
  Working capital (deficit).................      61,303       (13,867)     (4,319)       (8,423)          (116)        (7,011)
  Total assets..............................     143,732        84,312      83,337        70,980         66,704         58,042
  Long-term liabilities.....................      14,676        14,676      10,397        10,779          6,742          7,179
  Stockholders' equity......................     101,335        26,165      36,204        27,378         35,204         27,288
</TABLE>

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

There were no cash dividends paid for any period presented.

(1) Pro Forma adjustment reflects the issuance of 4,025,000 shares of common
    stock at $20.00 per share less offering expenses as well as the full pay
    down of the Company's revolving bank line of credit in the amount of
    $15,750,000.

                                       16
<PAGE>
ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
  OF OPERATIONS

YEAR ENDED JANUARY 2, 2000 AS COMPARED TO YEAR ENDED JANUARY 3, 1999

    Total revenues for 1999 were $68.8 million, compared with $62.4 million in
1998, an increase of $6.4 million or 10%. Service revenues increased to
$55 million in 1999 from $50.8 million in 1998, an increase of $4.2 million or
8%. The increase in service revenue is due to increased study activity. Research
and development revenues increased to $13.8 million in 1999 from $11.6 million
in 1998, an increase of $2.2 million or 19%. The increase in research and
development revenue is due to new transgenics programs in 1999 as well as
milestones earned during 1999 in association with the progress on previously
existing transgenics programs.

    Cost of services in 1999 were $46.6 million compared to $43.7 million in
1998, an increase of 7%, due, primarily, to increased service volumes. Sponsored
research and development expenses increased to $11.4 million in 1999 from
$10.5 million in 1998, an increase of $900,000 or 9%. The increase was due to
increased activity in sponsored research programs. Internal research and
development expenses decreased to $3.7 million in 1999 from $6.2 million in
1998, a decrease of $2.5 million or 40%. The decrease is due primarily to a
shifting of resources to sponsored research and development as well as a
reallocation of resources from the cancer vaccine program.

    Gross profit, defined as revenues less service costs and research and
development costs, in 1999 amounted to $7.1 million versus $2.1 million in 1998.
The increase is due to improved service gross profit, improved sponsored
research and development gross profit and a decrease in internal research costs.
Gross profit on services for 1999 was $8.4 million, a gross margin of 15%,
versus $7.1 million, a gross margin of 14% in 1998. The increase in services
gross margin is due to improved efficiencies. Gross profit on sponsored research
and development for 1999 was $2.4 million, a gross margin of 18%, versus
$1.1 million, a gross margin of 10% in 1998. The increase in sponsored research
and development gross margin is due to increased milestones earned in 1999 which
have a higher margin associated with them.

    Selling, general and administrative ("S,G&A") expenses increased to
$18.9 million in 1999 from $16.2 million in 1998, an increase of $2.7 million or
17%. The increase is due to increased marketing efforts in Primedica and to the
addition of administrative personnel required to support the growth in
transgenic business. There were also increases of approximately $500,000 of
transaction costs for uncompleted merger and acquisition activities and $450,000
of additional patent and legal expenditures.

    Interest income decreased to $65,000 in 1999, from $280,000 in 1998, due to
lower funds available for investment. Interest expense increased to
$2.2 million in 1999, from $1.4 million in 1998. Of the 1999 total,
approximately $900,000 represents interest incurred by the testing service
operations, $300,000 represents interest for the financing of the transgenic
production facility, $600,000 represents interest incurred under the Company's
bank line of credit and $400,000 represents amortization of deferred financing
costs.

    The Company recognized $484,000 of non-operating income in 1999 compared to
$100,000 in 1998. The 1999 amount represents the receipt of an insurance
settlement. The 1998 amount represents an earnout payment in connection with the
sale in 1995 of the TSI Center for Diagnostic Products Inc. ("CDP").

    The Company recognized $3.8 million of joint venture losses incurred on the
joint venture ("ATIII LLC") between the Company and Genzyme Corporation
("Genzyme") in 1999 as compared to $4.3 million of joint venture losses incurred
on ATIII LLC in 1998. The decrease is due to a reduction in the percentage share
of the losses in 1999.

    During the third quarter of 1999, the Company recorded a charge in the
amount of $1.2 million representing costs associated with the consolidation of
Primedica's Massachusetts operations into a single facility. Costs consisted of
facility closing costs of $740,000 and severance and employee related costs of

                                       17
<PAGE>
$505,000. The facility closing costs include net write-offs of leasehold
improvements of $415,000 and rental and lease termination costs to be paid in
the amount of $325,000. The Company reversed severance of $132,000 and facility
closing costs of $62,000 due to changed circumstances in the fourth quarter.
Additionally, the Company recorded, directly to expense, $194,000 of costs paid
in the fourth quarter relating to moving expenses and recruitment of new
personnel. These rental and lease termination costs are expected to be paid
through December of 2003. Severance costs were related to the elimination of 20
positions which included 12 laboratory positions and 8 general and
administrative positions. As of January 2, 2000, $121,000 of the severance and
employee related costs have been paid with a remaining balance of $252,000 to be
paid out during 2000. The consolidation is expected to increase the Company's
higher margin service capacity while, at the same time, reducing operating
expenses beginning in 2000.

YEAR ENDED JANUARY 3, 1999 AS COMPARED TO YEAR ENDED DECEMBER 28, 1997

    Total revenues for 1998 were $62.4 million, compared with $62.9 million in
1997, a decrease of $500,000, or 1%. Service revenues increased to
$50.8 million in 1998 from 43.4 million in 1997, an increase of $7.4 million, or
17%. Research and development revenues decreased to $11.6 million in 1998 from
$19.5 million in 1997, a decrease of $7.9 million, or 41%. The decrease reflects
the impact on revenue of the establishment, in January 1998, of the ATIII LLC
for the development of transgenic Antithrombin III ("AT-III") with Genzyme. Had
the AT-III program been structured on the same basis during 1998 as during 1997,
research and development revenues for 1998 would have increased by approximately
$713,000, or 4%.

    Cost of services in 1998 were $43.7 million compared to $37 million in 1997,
an increase of 18%, due, primarily, to increased service volumes. Sponsored
research and development expenses decreased to $10.5 million in 1998 from
$12.6 million in 1997, a decrease of $2.1million, or 17%. The decrease was due
to the impact of the formation of ATIII LLC. In 1997, the full cost of the
AT-III development program, including subcontractor costs, was reflected by the
Company as sponsored research and development expense and, to the extent that
the program was funded, as sponsored research and development revenue. With the
formation of ATIII LLC in 1998, all funding and subcontractor costs were being
recorded directly by the ATIII LLC. Costs incurred by the Company for the AT-III
development program were being funded by ATIII LLC and, therefore, only these
costs were being recorded equally as sponsored research and development revenue
and sponsored research and development expense. Had the AT-III development
program been structured on the same basis during 1998 as during 1997, the
sponsored research and development expenses would have increased by
approximately $6.6 million over the 1997 rate. Internal research and development
expenses increased to $6.2 million in 1998 from $5.3 million in 1997, an
increase of $900,000 or 17%. The increase is due to increased work on the cancer
vaccine program and increased activity on internal research programs.

    Gross profit, defined as revenues less service costs and research and
development costs, in 1998 amounted to $2.1 million versus $8.1 million in 1997.
The decrease is primarily due to $4.4 million of transgenic milestones from the
joint venture with Sumitomo Metals Industries, LTD (the "SMIG JV") recorded in
1997 in connection with the AT-III program, as well as a $1.5 million milestone
from Bristol-Myers Squibb in 1997. Additionally, an increase of $900,000 in
internal research and development was offset by an increase of $700,000 in
services gross profit. Gross profit on services for 1998 was $7.1 million, a
gross margin of 14%, versus $6.4 million, a gross margin of 15% in 1997. The
decrease in gross margin is due to increased revenue recognized on contracts not
signed until the first quarter of 1997 but for which costs had previously been
incurred and recognized, partially offset by improved utilization in 1998 due to
increased revenues.

    S,G&A expenses increased to $16.2 million in 1998 from $15.7 million in
1997, an increase of $500,000 or 3%. The increase was due to the increased
marketing effort and additional costs associated with the name change for
Primedica as well as the addition of administrative personnel required to
support the growth in transgenic research and development programs.

                                       18
<PAGE>
    Interest income increased to $280,000 in 1998, from $136,000 in 1997, due to
an increase in funds available for investment as a result of proceeds received
from the preferred stock offering in the first quarter of 1998 and the sale of
common stock in a registered direct offering in the second quarter of 1998.
Interest expense increased to $1.4 million in 1998, from $1.1 million in 1997.
Of the 1998 total, $1.1 million represents interest incurred by the testing
service operations, $101,000 represents interest for the financing of the
transgenic production facility and $134,000 represents interest incurred under
the revolving line of credit with Genzyme ("Genzyme Credit Line") (see Item 8
and Note 5 to the consolidated financial statements appearing in this report).

    The Company recognized $100,000 of non-operating income in 1998 compared to
$50,000 in 1997. The 1998 amount represents an earnout payment in connection
with the sale in 1995 of CDP.

    The Company recognized $4.3 million of joint venture losses incurred on
ATIII LLC during 1998. In 1997, the Company incurred $811,000 of losses on the
SMIG JV (see Item 8 Note 11 to the consolidated financial statements appearing
in this report).

NEW ACCOUNTING PRONOUNCEMENTS

    On June 15, 1998, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standard No. 133, "Accounting for Derivative Instruments
and Hedging Activities" ("SFAS 133"). SFAS 133 is effective for fiscal years
beginning after June 15, 2000. SFAS 133 requires that all derivative instruments
be recorded on the balance sheet at their fair values. Changes in fair values of
derivatives are recorded each period in current earnings or other comprehensive
income, depending on whether a derivative is designated as part of a hedge
transaction and, if it is, depending on the type of hedge transaction. The
Company has not yet completed its evaluation of the impact of the adoption of
this new standard; however, it is not expected to have a material impact on the
Company's financial position or results of operations in the near term.

    In November 1999, the Staff of the Securities and Exchange Commission issued
Staff Accounting Bulletin No. 100, "Restructuring and Impairment Charges" ("SAB
100"). This SAB expresses the views of the Staff regarding the accounting for
the disclosure of certain expenses commonly reported in connection with exit
activities and business combinations. SAB 100 has been applied in recording the
charges associated with the Company's facility consolidation costs.

    In December 1999, the Staff of the Securities and Exchange Commission issued
Staff Accounting Bulletin No. 101, "Revenue Recognition in Financial Statements"
("SAB 101"). This SAB summarizes certain of the Staff's views in applying
generally accepted accounting principles in the United States, to revenue
recognition in financial statements. The Company's revenue recognition policy is
in compliance with SAB 101.

LIQUIDITY AND CAPITAL RESOURCES

    In February 2000, the Company completed a secondary public offering of
approximately 4 million shares of common stock, including the exercise of an
overallotment. Net proceeds to the Company, after expenses, were $75.1 million.
Subsequent to the completion of the secondary public offering, the Company paid
down its revolving credit lines in the amount of $15.8 million. Following this
pay down, $15.8 million was available under these credit lines (see Item 8 and
Note 12 to the consolidated financial statements appearing in this report). In
conjunction with the offering, the Company issued a Notice of Redemption to
Genzyme for all outstanding shares of the Company's Series B Convertible
Preferred Stock (the "Series B Preferred Stock"). Prior to effecting this
redemption, Genzyme converted the Series B Preferred Stock into 1,048,021 shares
of common stock. The Company paid a cash dividend of $157,000 in conjunction
with the conversion. As a result of the offering, the $6.3 million Genzyme
Credit Line was eliminated.

                                       19
<PAGE>
    On a pro forma basis, adjusted for the impact of the offering and the full
pay-down of $15.8 million in revolving credit lines, the Company had a cash
balance of $67.2 million and working capital of $61.3 million. In addition, the
full $15.8 million of credit line was available, $793,000 under a term note was
available and $350,000 under a line for the expansion of various Massachusetts
facilities was available. The Company expects that the funds available from
these sources as well as the proceeds from the secondary public offering
completed in February 2000, will be sufficient to fund the Company through the
foreseeable future.

    The Company had cash and cash equivalents of $7.8 million at January 2,
2000. During 1999, the Company had a $4 million net decrease in cash. Sources of
funds during the period include net proceeds of $5.4 million from the issuance
of common stock, $1.7 million of proceeds received from employee stock purchase
and stock option plans, $5.5 million of proceeds from issuance of long-term debt
and $4.7 million in borrowings under a commercial bank revolving line of credit.
Cash inflows were offset by $7.9 million of cash used in operations (due
primarily to the net loss of $18.8 million, of which $11.7 million represented
non-cash charges), $6.4 million invested in capital equipment for further
expansion of the transgenic production facility and the expansion of the
laboratory facilities, $3.7 million invested in ATIII LLC and $2.5 million used
to pay down long-term debt.

    The Company has a working capital deficit of $13.9 million at January 2,
2000 compared to a deficit of $4.3 million at January 3, 1999. As of January 2,
2000, the Company had approximately no availability under a line of credit with
a commercial bank, $6.3 million available under the Genzyme Credit Line and
$793,000 available on a term note.

    In January 2000, the Company obtained a commitment for a $3 million
equipment lease line from a commercial leasing company.

    In November 1999, the Company completed a $6.6 million private placement of
Series B Preferred Stock to Genzyme. The proceeds from this placement were used
to redeem Series A Convertible Preferred Stock (the "Series A Preferred Stock")
(see Item 8 and Note 5 to the consolidated financial statements appearing in
this report).

    In December 1999, the Company completed a privately negotiated sale of
685,545 shares of common stock at $8.00 per share under a previously filed shelf
registration to two purchasers raising approximately $5.5 million in new equity.

    Management's current expectations regarding the sufficiency of the Company's
cash resources are forward-looking statements, and the Company's cash
requirements may vary materially from such expectations. Such forward-looking
statements are dependent on several factors, including the results of the
Company's testing services business, the ability of the Company to enter into
any transgenic research and development collaborations in the future and the
terms of such collaborations, the results of research and development and
preclinical and clinical testing, competitive and technological advances and
regulatory requirements. If the Company experiences increased losses, the
Company may have to seek additional financing through collaborative arrangements
or from public or private sales of its securities, including equity securities.
There can be no assurance that additional funding will be available on terms
acceptable to the Company, if at all. If additional financing cannot be obtained
on acceptable terms, to continue its operations the Company could be forced to
delay, scale back or eliminate certain of its research and development programs
or to enter into license agreements with third parties for the commercialization
of technologies or products that the Company would otherwise undertake itself.

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

    The Company has certain financial instruments at January 2, 2000, including
a guaranty, two revolving lines of credit, a letter of credit and various loans
outstanding which are sensitive to changes in interest rates. The Company has a
guaranty by Genzyme Corporation, obtained in December 1998, of the

                                       20
<PAGE>
Company's credit facility with a commercial bank, whose carrying value of
$969,000 approximates fair value. Also, the Company has revolving lines of
credit with a commercial bank and with Genzyme Corporation totaling
$23.8 million, which accrue interest at a variable rate. At January 2, 2000,
$15.8 million is outstanding under the lines and the weighted average interest
rate is 5.07%. As part of the revolving credit facility at a commercial bank,
the Company has been issued a $1.5 million standby letter of credit in support
of a major facility lease, of which none has been drawn down at January 2, 2000.
Additionally, the Company has various loans outstanding. These instruments are
not leveraged and are held for purposes other than trading.

    For the various loans outstanding, the table below presents the principal
cash flows that exist by maturity date and the related average interest rate.

<TABLE>
<CAPTION>
                                                  2000       2001       2002       2003       2004     THEREAFTER    TOTAL
                                                --------   --------   --------   --------   --------   ----------   --------
<S>                                             <C>        <C>        <C>        <C>        <C>        <C>          <C>
Fixed rate debt ($ in 000's)..................    602         982       484        530        580         2,117      5,295
Average interest rate on fixed rate debt......    7.7%        7.4%      7.4%       7.3%       6.9%          8.9%
Variable rate debt ($ in 000's)...............    649       5,658        --         --         --            --      6,307
</TABLE>

    The interest rate of the variable debt was 6.75% at January 2, 2000. At
January 2, 2000, the fair value of these loans approximates carrying value.

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULES

FINANCIAL STATEMENTS

    Response to this item is submitted as a separate section of this report
immediately following Item 14.

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

    None.

                                    PART III

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

    This information is set forth in part under the captions "ELECTION OF
DIRECTORS" and "SECTION 16 (a) BENEFICIAL REPORTING COMPLIANCE" in the Company's
Proxy Statement for the 2000 Annual Meeting of Stockholders to be held on
May 24, 2000 (the "Proxy Statement") which are incorporated herein by reference,
and the remainder of such information is set forth under the caption "EXECUTIVE
OFFICERS OF THE REGISTRANT" in Part I, Item 1A hereof.

ITEM 11.  EXECUTIVE COMPENSATION

    The information set forth under the caption "EXECUTIVE COMPENSATION" in the
Proxy Statement is incorporated herein by reference.

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

    The information set forth under the caption "SHARE OWNERSHIP" in the Proxy
Statement is incorporated herein by reference.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

    The information set forth under the captions "EXECUTIVE EMPLOYMENT
AGREEMENTS" and "COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION" in
the Proxy Statement is incorporated herein by reference. See also, Notes 2, 6
and 10 to the Consolidated Financial Statements included herewith.

                                       21
<PAGE>
                                    PART IV

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

    (a) The Company's Financial Statements and the ATIII LLC Financial
       Statements appear as a separate section of this report immediately
       following Item 14.

       All other schedules have been omitted because the required information is
       not applicable or not present in amounts sufficient to required
       submission of the schedule, or because the information required is in the
       consolidated financial statements or the notes thereto.

       The Exhibits to this report are listed below under Part IV, Item 14(c)
       hereof.

    (b) Reports on Form 8-K

       No reports on Form 8-K were filed by the Company during the quarter ended
       January 2, 2000.

    (c) Exhibits

       The exhibits filed as part of this Form 10-K are listed on the Exhibit
       Index immediately preceding such Exhibits, which Exhibit Index is
       incorporated herein by reference.

FORM 10-K-ITEMS 8, 14(a)(1), (a)(2), and (d)

GENZYME TRANSGENICS CORPORATION AND SUBSIDIARIES

List Of Financial Statements And Financial Statement Schedules

    The following consolidated financial statements of Genzyme Transgenics
    Corporation and subsidiaries are included in Item 8:

       Report of PricewaterhouseCoopers LLP--Independent Accountants

       Consolidated Balance Sheets--January 2, 2000 and January 3, 1999

       Consolidated Statements of Operations--For the fiscal years ended
       January 2, 2000, January 3, 1999 and December 28, 1997

       Consolidated Statements of Stockholders' Equity--For the fiscal years
       ended January 2, 2000, January 3, 1999 and December 28, 1997

       Consolidated Statements of Cash Flows--For the fiscal years ended
       January 2, 2000, January 3, 1999 and December 28, 1997

       Notes to Consolidated Financial Statements

    The following financial statements of ATIII LLC are included in Item 4(d):

       Report of PricewaterhouseCoopers LLP--Independent Accountants

       Balance Sheets--December 31, 1999 and December 31, 1998

       Statements of Operations--For the fiscal years ended December 31, 1999
       and December 31, 1998 and for the cumulative period from inception
       (January 1, 1998) to December 31, 1999

       Statements of Cash Flows--For the fiscal years ended December 31, 1999
       and December 31, 1998 and for the cumulative period from inception
       (January 1, 1998) to December 31, 1999

       Statements of Changes in Venturer's Capital--For the cumulative period
       from inception (January 1, 1998) to December 31, 1999

       Notes to Financial Statements

All other schedules for which provision is made in the applicable regulation of
the Securities and Exchange Commission are not required under the related
instructions or are inapplicable, and therefore have been omitted.

                                       22
<PAGE>
                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of
  Genzyme Transgenics Corporation:

    In our opinion, the accompanying consolidated balance sheets and the related
consolidated statements of operations, of stockholders' equity and of cash flows
present fairly, in all material respects, the financial position of Genzyme
Transgenics Corporation and its subsidiaries (the "Company") at January 2, 2000
and January 3, 1999, and the results of their operations and their cash flows
for each of the three fiscal years in the period ended January 2, 2000, in
conformity with accounting principles generally accepted in the United States.
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 of these statements in accordance with
auditing standards generally accepted in the United States, which 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, assessing the accounting principles used and
significant estimates made by management, and evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for the opinion expressed above.

                                          /s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

February 22, 2000, except as
  to the information in the third
  paragraph of Note 12 for which
  the date is April 3, 2000

                                       23
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

                          CONSOLIDATED BALANCE SHEETS

                  (DOLLARS IN THOUSANDS EXCEPT SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                              PRO FORMA (NOTE 12)
                                                                  JANUARY 2,
                                                                     2000           JANUARY 2,   JANUARY 3,
                                                                  (UNAUDITED)          2000         1999
                                                              -------------------   ----------   ----------
<S>                                                           <C>                   <C>          <C>
                                                  ASSETS
Current assets:
  Cash and cash equivalents.................................       $ 67,202          $  7,782     $ 11,740
  Accounts receivable, net of allowance of $888 and $487 at
    January 2, 2000 and January 3, 1999, respectively.......         11,335            11,335       12,334
  Unbilled contract revenue, net of allowance of $75 and $0
    at January 2, 2000 and January 3, 1999, respectively
    (including $420 and $771 from related parties at January
    2, 2000 and January 3, 1999, respectively)..............          8,516             8,516        6,847
  Other current assets......................................          1,971             1,971        1,496
                                                                   --------          --------     --------
    Total current assets....................................         89,024            29,604       32,417
Net property, plant, and equipment..........................         34,302            34,302       30,486
Costs in excess of net assets acquired, net.................         17,260            17,260       18,404
Other assets................................................          3,146             3,146        2,030
                                                                   --------          --------     --------
                                                                   $143,732          $ 84,312     $ 83,337
                                                                   ========          ========     ========

                                   LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable..........................................       $  2,977          $  2,977     $  2,811
  Accounts payable--Genzyme Corporation.....................            559               559        1,487
  Payable to ATIII LLC......................................          2,151             2,151        2,418
  Revolving line of credit..................................             --            15,750       11,096
  Accrued expenses..........................................          9,667             9,667        8,403
  Deferred contract revenue.................................          9,218             9,218        8,317
  Current portion of long-term debt and capital leases......          3,149             3,149        2,204
                                                                   --------          --------     --------
    Total current liabilities...............................         27,721            43,471       36,736
  Long-term debt and capital leases, net of current
    portion.................................................         13,897            13,897        9,561
  Deferred lease obligation.................................            779               779          741
  Other liabilities.........................................             --                --           95
                                                                   --------          --------     --------
    Total liabilities.......................................         42,397            58,147       47,133
Commitments and Contingencies (Note 3)
Stockholders' equity:
  Preferred stock, 5,000,000 shares authorized of which
    20,000 have been designated Series A convertible at
    January 2, 2000 and January 3, 1999 and 12,500 and none
    have been designated as Series B convertible at January
    2, 2000 and January 3, 1999, respectively
    Series A convertible preferred stock; $.01 par value;
      none and 20,000 shares were issued and outstanding at
      January 2, 2000 and January 3, 1999, respectively.....             --                --           --
    Series B convertible preferred stock; $.01 par value;
      6,602 and no shares were issued and outstanding at
      January 2, 2000 and January 3, 1999, respectively
      (liquidation preference $6,602), and 6,602 shares on
      unaudited pro forma basis.............................             --                --           --
  Common stock, $.01 par value; 40,000,000 shares
    authorized; 22,601,296 and 18,384,024 shares issued and
    outstanding at January 2, 2000 and January 3, 1999,
    respectively, and 26,626,296 on unaudited pro forma
    basis...................................................            266               226          184
  Dividend on preferred stock...............................         (2,653)           (2,653)      (1,156)
  Capital in excess of par value--preferred stock...........          6,647             6,647       18,777
  Capital in excess of par value--common stock..............        163,025            87,895       65,716
Unearned compensation.......................................           (284)             (284)        (437)
Accumulated deficit.........................................        (65,625)          (65,625)     (46,864)
Accumulated other comprehensive loss........................            (41)              (41)         (16)
                                                                   --------          --------     --------
    Total stockholders' equity..............................        101,335            26,165       36,204
                                                                   --------          --------     --------
                                                                   $143,732          $ 84,312     $ 83,337
                                                                   ========          ========     ========
</TABLE>

   The accompanying notes are an integral part of the consolidated financial
                                  statements.

                                       24
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

                     CONSOLIDATED STATEMENTS OF OPERATIONS

           (DOLLARS IN THOUSANDS EXCEPT SHARE AND PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                               FOR THE FISCAL YEARS ENDED
                                                        ----------------------------------------
                                                        JANUARY 2,    JANUARY 3,    DECEMBER 28,
                                                           2000          1999           1997
                                                        -----------   -----------   ------------
<S>                                                     <C>           <C>           <C>
Revenues:
  Services............................................  $    54,959   $    50,816   $    43,417
  Sponsored research and development..................       13,825        11,596        19,521
                                                        -----------   -----------   -----------
                                                             68,784        62,412        62,938

Costs and operating expenses:
  Services............................................       46,602        43,668        36,989
  Research and development:
    Sponsored.........................................       11,402        10,486        12,558
    Internal..........................................        3,690         6,155         5,282
  Selling, general and administrative.................       18,872        16,184        15,650
  Facility consolidation costs........................        1,245            --            --
  Equity in loss of joint ventures....................        3,797         4,285           811
                                                        -----------   -----------   -----------
                                                             85,608        80,778        71,290
                                                        -----------   -----------   -----------
Loss from operations..................................      (16,824)      (18,366)       (8,352)
Other income (expense):
  Interest income.....................................           65           280           136
  Interest expense....................................       (2,166)       (1,379)       (1,129)
  Other income........................................          484           100            50
                                                        -----------   -----------   -----------
Loss from operations before income taxes..............      (18,441)      (19,365)       (9,295)
Provision for income taxes............................          320           225            48
                                                        -----------   -----------   -----------
Net loss..............................................  $   (18,761)  $   (19,590)  $    (9,343)
Dividend to preferred shareholders....................       (1,497)       (1,156)           --
                                                        -----------   -----------   -----------
Net loss available to common shareholders.............  $   (20,258)  $   (20,746)  $    (9,343)
                                                        ===========   ===========   ===========
Net loss available per common share (basic and
  diluted)............................................  $     (1.02)  $     (1.15)  $     (0.54)
                                                        ===========   ===========   ===========
Weighted average number of common shares outstanding
  (basic and diluted).................................   19,876,904    17,978,677    17,253,292
                                                        ===========   ===========   ===========
Comprehensive loss:
  Net loss............................................  $   (18,761)  $   (19,590)  $    (9,343)
  Other comprehensive income (loss):
    Unrealized holding losses on available for sale
      securities......................................          (25)          (16)           --
    Reclassification adjustment for foreign currency
      translation losses included in net loss.........           --            --            10
                                                        -----------   -----------   -----------
  Total other comprehensive income (loss).............          (25)          (16)           10
                                                        -----------   -----------   -----------
Comprehensive loss....................................  $   (18,786)  $   (19,606)  $    (9,333)
                                                        ===========   ===========   ===========
</TABLE>

   The accompanying notes are an integral part of the consolidated financial
                                  statements.

                                       25
<PAGE>
                        GENZYME TRANSGENICS CORPORATION
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                                            CAPITAL IN       CAPITAL IN
                                      PREFERRED STOCK        COMMON STOCK                    EXCESS OF        EXCESS OF
                                    -------------------   -------------------                PAR VALUE        PAR VALUE
                                     SHARES     AMOUNT     SHARES     AMOUNT    DIVIDEND   COMMON STOCK    PREFERRED STOCK
                                    --------   --------   --------   --------   --------   -------------   ---------------
<S>                                 <C>        <C>        <C>        <C>        <C>        <C>             <C>
Balance, December 29, 1996........      --       $ --      17,131      $171     $    --       $52,974          $     --
Net loss..........................
Common stock issuance under
  Employee Stock Purchase Plan....                            115         1                       572
Common stock issuance in
  connection with the GTC Savings
  and Retirement Plan.............                             37         1                       257
Issuance of warrants in connection
  with a debt financing...........                                                                130
Translation adjustment............
Proceeds from the exercise of
  stock options...................                            120         1                       545
                                      ----       ----     -------      ----     -------       -------          --------
Balance, December 28, 1997........      --         --      17,403       174                    54,478                --
Net loss..........................
Sale of Series A Preferred Stock
  to institutional investors, net
  of expenses.....................      20                                                                       18,922
Issuance of warrants in connection
  with the preferred stock
  offering........................                                               (1,156)        1,301              (145)
Sale of common stock in a private
  placement, net of expenses......                            603         6                     6,440
Common stock issuance under
  Employee Stock Purchase Plan....                            229         2                     1,149
Common stock issuance in
  connection with the GTC Savings
  and Retirement Plan.............                             43         1                       398
Issuance of warrants in connection
  with a debt financing...........                                                                969
Issuance of stock options to
  non-employees...................                                                                519
Unrealized loss on investment.....
Proceeds from the exercise of
  stock options...................                            106         1                       462
                                      ----       ----     -------      ----     -------       -------          --------
Balance, January 3, 1999..........      20         --      18,384       184      (1,156)       65,716            18,777
Net loss..........................
Sale of common stock in a private
  placement, net of expenses......                            686         7                     5,421
Common stock issuance under
  Employee Stock Purchase Plan....                            239         4                       992
Common stock issuance in
  connection with the GTC Savings
  and Retirement Plan.............                             95         1                       510
Conversion of Series A Preferred
  Stock...........................     (14)                 2,830        27                    13,008           (13,035)
Common stock issuance for ACT
  License Agreement...............                            217         2                       998
Redemption of Series A Preferred
  Stock...........................      (6)                                        (861)                         (5,741)
Issuance of Series B Preferred
  Stock and related warrants, net
  of issuance costs...............       7                                         (343)          343             6,563
Dividend attributed to beneficial
  conversion......................                                                 (210)          210
Dividend accrued on Series B
  Preferred Stock.................                                                  (83)                             83
Unearned compensation.............                                                                (37)
Unrealized loss on investment.....
Proceeds from the exercise of
  stock options...................                            150         1                       734
                                      ----       ----     -------      ----     -------       -------          --------
Balance, January 2, 2000..........       7       $ --      22,601      $226     $(2,653)      $87,895          $  6,647
                                      ====       ====     =======      ====     =======       =======          ========

<CAPTION>
                                                                  ACCUMULATED
                                                                     OTHER           TOTAL
                                      UNEARNED     ACCUMULATED   COMPREHENSIVE   STOCKHOLDERS'
                                    COMPENSATION     DEFICIT     INCOME (LOSS)      EQUITY
                                    ------------   -----------   -------------   -------------
<S>                                 <C>            <C>           <C>             <C>
Balance, December 29, 1996........        --        $(17,931)        $(10)         $ 35,204
Net loss..........................                    (9,343)                        (9,343)
Common stock issuance under
  Employee Stock Purchase Plan....                                                      573
Common stock issuance in
  connection with the GTC Savings
  and Retirement Plan.............                                                      258
Issuance of warrants in connection
  with a debt financing...........                                                      130
Translation adjustment............                                     10                10
Proceeds from the exercise of
  stock options...................                                                      546
                                       -----        --------         ----          --------
Balance, December 28, 1997........        --         (27,274)          --            27,378
Net loss..........................                   (19,590)                       (19,590)
Sale of Series A Preferred Stock
  to institutional investors, net
  of expenses.....................                                                   18,922
Issuance of warrants in connection
  with the preferred stock
  offering........................                                                       --
Sale of common stock in a private
  placement, net of expenses......                                                    6,446
Common stock issuance under
  Employee Stock Purchase Plan....                                                    1,151
Common stock issuance in
  connection with the GTC Savings
  and Retirement Plan.............                                                      399
Issuance of warrants in connection
  with a debt financing...........                                                      969
Issuance of stock options to
  non-employees...................      (437)                                            82
Unrealized loss on investment.....                                    (16)              (16)
Proceeds from the exercise of
  stock options...................                                                      463
                                       -----        --------         ----          --------
Balance, January 3, 1999..........      (437)        (46,864)         (16)           36,204
Net loss..........................                   (18,761)                       (18,761)
Sale of common stock in a private
  placement, net of expenses......                                                    5,428
Common stock issuance under
  Employee Stock Purchase Plan....                                                      996
Common stock issuance in
  connection with the GTC Savings
  and Retirement Plan.............                                                      511
Conversion of Series A Preferred
  Stock...........................                                                       --
Common stock issuance for ACT
  License Agreement...............                                                    1,000
Redemption of Series A Preferred
  Stock...........................                                                   (6,602)
Issuance of Series B Preferred
  Stock and related warrants, net
  of issuance costs...............                                                    6,563
Dividend attributed to beneficial
  conversion......................                                                       --
Dividend accrued on Series B
  Preferred Stock.................                                                       --
Unearned compensation.............       153                                            116
Unrealized loss on investment.....                                    (25)              (25)
Proceeds from the exercise of
  stock options...................                                                      735
                                       -----        --------         ----          --------
Balance, January 2, 2000..........     $(284)       $(65,625)        $(41)         $ 26,165
                                       =====        ========         ====          ========
</TABLE>

   The accompanying notes are an integral part of the consolidated financial
                                  statements.

                                       26
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

                             (DOLLARS IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                    FOR THE FISCAL YEARS ENDED
                                                              --------------------------------------
                                                              JANUARY 2,   JANUARY 3,   DECEMBER 28,
                                                                 2000         1999          1997
                                                              ----------   ----------   ------------
<S>                                                           <C>          <C>          <C>
Cash flows for operating activities:
  Net loss..................................................   $(18,761)    $(19,590)      $(9,343)
  Adjustments to reconcile net loss to net cash used in
    operating activities:
    Depreciation and amortization...........................      6,517        5,002         4,149
    Provision (recovery) of accounts receivable
      allowances............................................        717          166           124
    Shares to be issued for 401-K employer match............        584          515           464
    Non-employee stock option charge........................        116           82            --
    Loss on disposal of fixed assets........................         --           --             7
    Equity in loss of joint ventures........................      3,797        4,285           811
  Changes in assets and liabilities:
    Accounts receivable and unbilled contract revenue.......     (1,387)      (2,844)       (2,471)
    Other current assets....................................       (500)         502            78
    Accounts payable........................................     (1,079)       1,261         1,124
    Other accrued expenses..................................      1,191          387         1,783
    Deferred contract revenue...............................        901        2,249        (1,081)
                                                               --------     --------       -------
    Net cash used in operating activities...................     (7,904)      (7,985)       (4,355)
Cash flows for investing activities:
  Purchase of property, plant and equipment.................     (6,412)      (6,005)       (6,175)
  Investment in joint ventures..............................     (3,674)      (4,358)         (528)
  Other assets..............................................       (724)        (391)           --
                                                               --------     --------       -------
    Net cash used in investing activities...................    (10,810)     (10,754)       (6,703)
Cash flows from financing activities:
  Net proceeds from the issuance of common stock............      5,389        6,446            --
  Redemption of Series A convertible preferred stock........     (6,602)
  Net proceeds from employee stock purchase plan............        996        1,151           573
  Net proceeds from the exercise of stock options...........        735          463           546
  Net proceeds from the issuance of Series B convertible
    preferred stock and related warrants....................      6,602       18,922            --
  Proceeds from long-term debt..............................      5,535        2,162         5,302
  Repayment of long-term debt...............................     (2,496)      (4,063)       (3,597)
  Net borrowings under revolving line of credit.............      4,654        5,096            --
  Investment and advances by Genzyme Corporation............         --       (6,000)        6,000
  Deferred financing costs..................................         --           --          (170)
  Other long-term liabilities...............................        (57)         (81)         (117)
                                                               --------     --------       -------
    Net cash provided by financing activities...............     14,756       24,096         8,537
                                                               --------     --------       -------
Net increase (decrease) in cash and cash equivalents........     (3,958)       5,357        (2,521)
Effect of exchange rates on cash............................         --           --            10
Cash and cash equivalents at beginning of the period........     11,740        6,383         8,894
                                                               --------     --------       -------
Cash and cash equivalents at end of period..................   $  7,782     $ 11,740       $ 6,383
                                                               ========     ========       =======
</TABLE>

   The accompanying notes are an integral part of the consolidated financial
                                  statements.

                                       27
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

   FISCAL YEARS ENDED JANUARY 2, 2000, JANUARY 3, 1999 AND DECEMBER 28, 1997
              (ALL TABULAR $ IN THOUSANDS, EXCEPT PER SHARE DATA)

NOTE 1.  NATURE OF BUSINESS

    Genzyme Transgenics Corporation (together with its subsidiaries, the
"Company") is engaged in the application of transgenic technology to the
development and production of recombinant proteins for therapeutic and
diagnostic uses and, through its wholly-owned subsidiary, Primedica Corporation
("Primedica"), formerly TSI Corporation ("TSI"), is a leading provider of
preclinical and toxicology testing services to pharmaceutical, biotechnology,
medical device and chemical companies.

    The accompanying financial statements have been presented on the assumption
that the Company is a going concern. The Company has incurred losses and
negative operating cash flow in each of the fiscal years ended January 2, 2000,
January 3, 1999 and December 28, 1997. The Company had a working capital deficit
of $13.9 million at January 2, 2000. As of January 2, 2000, the Company had
$6.3 million available under a credit line with Genzyme Corporation ("Genzyme"),
$350,000 available under a line for the expansion of various Massachusetts
facilities and $793,000 available under a term note facility with a commercial
bank.

    In November 1999, the Company redeemed all of its outstanding Series A
Convertible Preferred Stock (the "Series A Preferred Stock") for a cash payment
of approximately $6.6 million, representing cost plus 15%. To fund the
redemption, the Company issued approximately $6.6 million of Series B
Convertible Preferred Stock (the "Series B Preferred Stock") to Genzyme (see
Note 5).

    In February 2000, the Company completed a follow-on public offering of
common stock raising in excess of $75 million after offering expenses (see
Note 12). In connection with this offering, the Genzyme Credit Line was
eliminated.

    The Company is subject to risks common to companies in the biotechnology
industry, including, but not limited to, development by the Company or its
competitors of new technological innovations, raising additional capital,
dependence on key personnel, protection of proprietary technology and compliance
with government regulations.

NOTE 2.  SIGNIFICANT ACCOUNTING POLICIES

BASIS OF PRESENTATION

    The Company was incorporated in February 1993. On October 1, 1994, the
Company acquired TSI and its respective subsidiaries, Argus Research
Laboratories, Inc. ("Argus"), The TSI Center for Diagnostic Products, Inc.
("CDP"), Health and Sciences Research Incorporated ("HSRI"), TSI Mason
Laboratories, Inc. ("Mason"), TSI Redfield Laboratories, Inc. ("Redfield"), TSI
Washington Laboratories, Inc. ("Washington") and G.D.R.U. Limited ("GDRU"). In
July 1995, the Company acquired BioDevelopment Laboratories, Inc. ("BDL"). In
1995, the Company closed its HSRI facility and completed the sale of GDRU. HSRI
and GDRU were the only facilities performing human clinical trials within the
Company's operations.

    In February 1998, the Company reorganized TSI and its respective
subsidiaries and BDL to form Primedica Corporation.

    Genzyme is the Company's largest single stockholder. As a result of various
equity transactions, Genzyme owned 33% of the Company's common stock at
January 2, 2000, and 37% on a fully diluted

                                       28
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 2.  SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
basis. Following the conversion of the Series B Preferred Stock, Genzyme owned
36% of the Company's common stock and 37% on a fully diluted basis.

PRINCIPLES OF CONSOLIDATION

    The consolidated financial statements include the accounts of the Company
and its wholly-owned subsidiaries. The Company accounts for its 22% investment
in the joint venture between SMI Genzyme Ltd. and Sumitomo Metals
Industries Ltd. ("SMIG JV") using the equity method. The Company accounts for
its 50% investment in the joint venture between the Company and Genzyme ("ATIII
LLC") under the equity method. All significant intercompany transactions have
been eliminated.

USE OF ESTIMATES

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make certain estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. The significant estimates and assumptions in these financial
statements include contract revenue recognition, net realizable value of costs
in excess of net assets acquired, account receivable reserves and tax valuation
reserves. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

    Cash equivalents, consisting principally of money market funds with initial
maturities of three months or less, are valued at market.

MARKETABLE SECURITIES

    Marketable securities, which include the Company's investment in equity
securities, have been classified as available for sale and are stated at market
value based on quoted market prices. Gains and losses on sales of securities are
calculated using the specific identification method.

    At January 2, 2000 and January 3, 1999, there was $42,000 and $67,000,
respectively, of marketable securities included in other current assets and an
associated $41,000 and $16,000, respectively, of unrealized loss included in
accumulated other comprehensive loss and equity. The Company has no realized
gains on available for sale securities in any of the years ended January 2, 2000
and January 3, 1999.

CONCENTRATION OF CREDIT RISK

    Financial instruments that potentially subject the Company to concentrations
of credit risk consist primarily of cash, cash equivalents and trade accounts
receivable. The Company is subject to the concentration of credit risk of its
commercial bank that holds the revolving line of credit and term loan which the
Company relies on for its future cash flows. At January 2, 2000 and January 3,
1999, approximately 92% and 94%, respectively, of cash and cash equivalents were
held by one financial institution. Total credit facilities at one commercial
bank are $24.6 million at January 2, 2000 and January 3, 1999.

                                       29
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 2.  SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    The Company provides most of its testing services to diverse pharmaceutical
companies worldwide. The Company also provides services to the U.S. government.
See Note 8 for additional revenue information. Concentrations of credit risk
with respect to trade receivables are limited due to the large number of
customers comprising the Company's customer base. The Company performs ongoing
credit evaluations of its customers' financial conditions and maintains reserves
for potential credit losses. Activity for fiscal 1997 included a provision of
$256,000, a recovery of $132,000 and write-offs of $156,000. Activity for fiscal
1998 included a provision of $166,000 and write-offs of $69,000. Activity for
fiscal 1999 included a provision of $744,000, a recovery of $27,000 and
write-offs of $295,000.

PROPERTY, PLANT AND EQUIPMENT

    Property, plant and equipment are stated at cost and depreciated using the
straight-line method over estimated useful lives of three to thirty years.
Leasehold improvements are amortized using the straight-line method over the
life of the improvement or the remaining term of the lease, whichever is
shorter. The direct costs of the New Zealand goats ("Livestock") and related
costs to bring them to the United States are capitalized and amortized using the
straight-line method over three years.

    The following is the summary of property, plant and equipment and related
accumulated amortization and depreciation as of January 2, 2000 and January 3,
1999.

<TABLE>
<CAPTION>
                                                                YEARS      JANUARY 2,   JANUARY 3,
                                                               OF LIFE        2000         1999
                                                              ----------   ----------   ----------
<S>                                                           <C>          <C>          <C>
Land........................................................      --         $ 1,082      $   983
Buildings...................................................   20 - 30        18,049       15,968

Livestock...................................................      3            1,959        1,959
Leasehold improvements......................................  lease life       6,722        4,880
Laboratory, manufacturing and office equipment..............    3 - 10        11,785       10,023
Laboratory, manufacturing and office equipment--capital
  lease.....................................................    3 - 10         9,154        6,823
Construction in process.....................................      --             713          179
                                                                             -------      -------
                                                                             $49,464      $40,815
                                                                             =======      =======
Less accumulated amortization and depreciation..............                  15,162       10,329
                                                                             -------      -------
Net property, plant and equipment...........................                 $34,302      $30,486
                                                                             =======      =======
</TABLE>

    Depreciation and amortization expense was $4,423,000, $3,771,000 and
$2,919,000 for the fiscal years ended January 2, 2000, January 3, 1999 and
December 28, 1997, respectively. Accumulated amortization for equipment under
capital lease was $2,660,000 and $1,542,000 at January 2, 2000 and January 3,
1999, respectively.

NON CASH TRANSACTIONS

    During fiscal 1997, the Company purchased $2,482,000 of fixed assets and
financed these additions with capital lease obligations. The Company issued
warrants valued at $130,000 in connection with the financing for the expansion
of Mason Laboratories (see Note 4).

                                       30
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 2.  SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    During fiscal 1998, the Company purchased $1,904,000 of fixed assets and
financed these additions with capital lease obligations. The Company received
stock in payment for an accounts receivable and an advance payment valued at
$583,000. The Company issued warrants valued at $969,000 in connection with the
Genzyme guarantee of a credit line with a commercial bank (see Note 4). The
Company issued warrants valued at $1,301,000 in connection with a Preferred
Stock offering (see Note 5). The Company issued stock options to non-employees
valued at $519,000.

    During fiscal 1999, the Company purchased $2,411,000 of fixed assets and
financed these additions with capital lease obligations. The Company issued
common stock valued at $1,000,000 in connection with a license agreement with
Advanced Cell Technology, Inc. This license has been recorded as a long term
asset.

LONG-LIVED ASSETS

    The Company reviews long-lived assets for impairment by comparing the
cumulative undiscounted cash flows from the assets with their carrying amount.
Any write-downs are to be treated as permanent reductions in the carrying amount
of the assets. Management's policy regarding long-lived assets is to evaluate
the recoverability of its assets when the facts and circumstances suggest that
these assets may be impaired. This analysis relies on a number of factors,
including operating results, business plans, budgets, economic projections and
changes in management's strategic direction or market emphasis. The test of such
recoverability is a comparison of the asset value to its expected cumulative net
operating cash flow over the remaining life of the asset.

COSTS IN EXCESS OF NET ASSETS ACQUIRED

    The $15,860,000 of excess consideration paid and costs incurred over the net
value of assets acquired (primarily goodwill) by GTC in 1994 of TSI is being
amortized using the straight-line method over a twenty-year period. The carrying
value of goodwill is included in management's evaluation of the recoverability
of its long-lived assets. Accumulated amortization at January 2, 2000 was
$4,266,000.

    The $7,329,000 of excess consideration paid and costs incurred over the net
fair value of assets of BDL acquired by GTC in 1995 is being amortized using the
straight-line method over twenty years. Accumulated amortization at January 2,
2000 was $1,663,000.

    At January 2, 2000, goodwill totaled $23,189,000 with $5,929,000 accumulated
amortization.

DEFERRED FINANCE CHARGES

    The Company incurs various charges relating to financings into which it has
entered. The Company includes these amounts in other assets and amortizes the
amount to interest expense over the life of the debt. The unamortized balance at
January 2, 2000 and January 3, 1999 was approximately $930,000 and
$1.3 million, respectively.

                                       31
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 2.  SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
ACCRUED EXPENSES

    Accrued expenses included the following:

<TABLE>
<CAPTION>
                                                      AT JANUARY 2,   AT JANUARY 3,
                                                          2000            1999
                                                      -------------   -------------
<S>                                                   <C>             <C>
Accrued payroll and benefits........................     $4,056          $3,475
Other...............................................      5,611           4,928
                                                         ------          ------
  Total accrued expenses............................     $9,667          $8,403
                                                         ======          ======
</TABLE>

    As a result of the 1994 merger with TSI, the Company established severance
reserves for the elimination of 35 positions of which 20 were laboratory
positions, eight were accounting/finance positions and seven were general and
administrative positions. The total severance established was $1,417,000 to be
paid through 2000. As of January 2, 2000, $1,318,000 has been paid. The
remaining $99,000 balance is all classified as a short-term liability.

    Additionally, there have been various other terminations for which the
Company recorded expense of $498,000 and $265,000 in 1999 and 1998,
respectively. At January 2, 2000 and January 3, 1999, approximately $381,000 and
$429,000 had been paid out, respectively, and $333,000 and $233,000 is included
in accrued expenses, respectively.

    In September 1999, the Company recorded a charge in the amount of $1,245,000
relating to the consolidation of certain facilities. Costs consisted of facility
closing costs of $740,000 and severance and employee related costs of $505,000.
Severance costs relate to the elimination of 20 positions, of which 12 were
laboratory positions and 8 were general and administrative positions. The
facility closing costs included net write-offs of leasehold improvements of
$415,000 and rental and lease termination costs to be paid after the
consolidation in the amount of $325,000. These costs are expected to be fully
paid by the fourth quarter of 2000. As of January 2, 2000, $121,000 of the
severance and employee related costs had been paid with a remaining balance of
$252,000 to be paid during 2000. During the fourth quarter of 1999, the Company
recorded an adjustment to reverse $132,000 of the severance accrual and $62,000
of facility closing costs based on changed circumstances. Separately, the
Company recorded an expense of $194,000 directly to the income statement
relating to moving costs and recruiting fees paid in the fourth quarter
associated with this facility consolidation.

INVESTMENT IN JOINT VENTURES

    In 1990, the Company entered into the SMIG JV joint venture with Sumitomo
Metal Industries as a minority owner (see Note 11). The investment has been
accounted for under the equity method since March 1994, with the Company
recognizing its 22% share of the SMIG JV losses in its Statement of Operations.
In October 1995 and March 1997, the Company made additional investments of
$807,000 and $528,000, respectively, in the SMIG JV, which maintained the
Company's interest at 22%. In December 1997, the equity investment in the SMIG
JV was reduced to zero as a result of recognizing the Company's share of the
SMIG JV's losses. The Company has neither obligation nor intention to provide
additional funding to the SMIG JV, and has therefore discontinued recognizing
its share of the SMIG JV's losses.

                                       32
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 2.  SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    On January 1, 1998, a definitive collaboration agreement for the ATIII LLC
joint venture between the Company and Genzyme was executed. The Company's 50%
ownership in ATIII LLC is accounted for under the equity method (see Note 11).

REVENUE RECOGNITION AND CONTRACT ACCOUNTING

    For fixed price contracts and cost reimbursement contracts in both the
Transgenics and Primedica segments, the Company records revenue using the
percentage of completion method based upon a ratio of costs incurred to total
estimated costs. Certain of the transgenic contracts contain license fees and
incentive-based milestone payments. The Company recognizes license fees only on
payments that are nonrefundable, and defers revenue recognition until
performance obligations have been completed in accordance with SEC Staff
Accounting Bulletin (SAB) No. 101. The Company recognizes revenue on
incentive-based milestones only when achievement of the milestone has occurred
and defers profit recognition until performance obligations have been completed.

    Profits expected to be realized are based on the total contract sales value
and the Company's estimates of costs at completion. The sales value of
Transgenic contracts in based on achievable milestones and is revised throughout
the contract as the Company demonstrates achievement of milestones. The
Company's estimates of costs include all costs expected to be incurred to
fulfill performance obligations of the contracts. For most Transgenic contracts,
this policy results in a deferral of contract profit until all performance
obligations have been completed. Estimates of total contract costs are reviewed
and revised periodically, throughout the lives of the contracts, with
adjustments to profits resulting from such revisions being recorded on a
cumulative basis in the period in which the revisions are made. When management
believes the costs of completing a contract will exceed its sales value, the
full amount of the anticipated contract loss is immediately recognized.

    Unbilled contract revenue represents recoverable costs and accrued profit
which had not been billed at the balance sheet date. Deferred contact revenue
represents amounts received from customers that exceed the amount of revenue
recognized to date. Research and development revenues in fiscal 1999 consisted
of $4,491,000 from the ATIII LLC (see Note 11) and $9,334,000 from commercial
clients.

NET LOSS PER COMMON SHARE

    The Company applies Statement of Financial Accounting Standards No. 128,
("SFAS 128") EARNINGS PER SHARE in calculating earnings per share ("EPS").
Common stock equivalents of the Company consist of warrants (see Note 5), stock
options (see Note 6), stock to be issued under the 401-K retirement plan (see
Note 6), convertible debt (see Note 4) and convertible preferred stock (see
Note 5). The Company was in a net loss position in 1999, 1998 and 1997,
therefore 4.8 million, 6.9 million and 2.8 million common stock equivalents,
respectively, were not used to compute diluted loss per share, as the effect was
antidilutive. Subsequent to year end, the Company issued 4 million shares of
common stock for cash proceeds and issued 1 million shares of common stock for
the redemption of the Series B Preferred Stock (see Note 12).

INCOME TAXES

    The Company accounts for income taxes under the asset and liability method,
which requires recognition of deferred tax assets and liabilities for the
expected future tax consequences of temporary differences between the financial
statement and tax bases of assets and liabilities using the expected

                                       33
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 2.  SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
enacted tax rates for the year in which the differences are expected to reverse.
The measurement of deferred tax assets is reduced by a valuation allowance if,
based upon the weight of available evidence, it is more likely than not that
some or all of the deferred tax assets will not be realized.

NEW ACCOUNTING PRONOUNCEMENT

    In June 1998, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 133 ("SFAS 133"), "Accounting for Derivative
Instruments and Hedging Activities." This Statement requires companies to record
derivatives on the balance sheet as assets or liabilities, measured at fair
value. Gains or losses resulting from the change in the values of those
derivatives would be accounted for depending on the use of the derivative and
whether it qualifies for hedge accounting. SFAS 133 will be effective for the
Company's fiscal year ending December 30, 2001. The Company believes the
adoption of SFAS 133 will not have a material effect on its financial
statements.

    In November 1999, the Staff of the Securities and Exchange Commission issued
Staff Accounting Bulletin No. 100, "Restructuring and Impairment Charges" ("SAB
100"). This SAB expresses the views of the Staff regarding the accounting for
the disclosure of certain expenses commonly reported in connection with exit
activities and business combinations. SAB 100 has been applied in recording the
charges associated with the Company's facility consolidation costs.

    In December 1999, the Staff of the Securities and Exchange Commission issued
Staff Accounting Bulletin No. 101, "Revenue Recognition in Financial Statements"
("SAB 101"). This SAB summarizes certain of the Staff's views in applying
generally accepted accounting principles in the United States, to revenue
recognition in financial statements. The Company's revenue recognition policy is
in compliance with SAB 101.

NOTE 3.  COMMITMENTS & CONTINGENCIES

    The Company leases equipment and facilities under various operating and
capital leases (see Note 4). The deferred lease obligation represents the
cumulative difference between actual facility lease payments and lease expense
recognized ratably over the lease period. Rent expense for the fiscal years
ended January 2, 2000, January 3, 1999 and December 28, 1997 was approximately
$3,613,000, $2,878,000 and $2,566,000, respectively.

                                       34
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 3.  COMMITMENTS & CONTINGENCIES (CONTINUED)
    At January 2, 2000, the Company's future minimum payments required under
these leases are as follows:

<TABLE>
<CAPTION>
                                                   OPERATING   CAPITAL     TOTAL
                                                   ---------   --------   --------
<S>                                                <C>         <C>        <C>
2000.............................................   $2,253      $2,413    $ 4,666
2001.............................................    1,953         950      2,903
2002.............................................    1,672       1,496      3,168
2003.............................................    1,502       1,568      3,070
2004.............................................    1,278          --      1,278
Thereafter.......................................      711          --        711
                                                    ------      ------    -------
    Total........................................   $9,369       6,427    $15,796
                                                    ======                =======
Less amount representing interest................                  983
                                                                ------
Present value of minimum lease payments..........               $5,444
                                                                ======
</TABLE>

    The Company sold a 46.3% ownership interest in ATIII LLC to Genzyme on
January 1, 1998, for an aggregate amount of $12,500,010, of which $12,500,000 is
contingent upon the achievement of certain milestones (see Note 11).

    The Company is a party to license agreements for certain technologies.
Certain of these agreements contain provisions for the future royalties to be
paid on commercial sales of products developed from the licensed technologies.

NOTE 4.  BORROWINGS

    In December 1998, the Company obtained new credit facilities (the "New
Credit Line" and the "New Term Loan") from another commercial bank. The New
Credit Line has a three year term expiring in December 2001. Under the New
Credit Line, the Company may borrow up to $17.5 million, a portion of which may
be utilized for a standby letter of credit. Under the financing, the amount of
the New Term Loan is $7.1 million. As of January 2, 2000 and January 3, 1999,
$6,307,421 and $1,836,024, respectively, was outstanding and at January 2, 2000,
$793,000 was available. The term loan is payable in quarterly payments through
December 2001 with a balloon payment for the remaining balance on December 28,
2001. As of January 2, 2000 and January 3, 1999, $15,750,000 and $11,096,000,
respectively, was outstanding under the New Credit Line and at January 2, 2000,
$250,000 was available. A standby letter of credit with a face amount of
$1.5 million has been issued under the New Credit Line to support a major
facility lease. At the Company's option, interest on loans under the New Credit
Line (other than the standby letter of credit) and the New Term Loan accrues
either at the Prime rate or at an adjusted libor rate. The interest rate on the
New Term Loan was 6.75% and 7.75% at January 2, 2000 and January 3, 1999,
respectively. The weighted average interest rate on all outstanding lines of
credit was approximately 5.1%, 2.0% and 5.7% for the fiscal years ended
January 2, 2000, January 3, 1999 and December 28, 1997, respectively. Under the
terms of the new agreement, the Company may not pay any dividends. No amounts
were due under the standby letter of credit as of January 2, 2000. Both loans
are guaranteed by Genzyme.

    In connection with the New Credit Line, Genzyme provided a guaranty to the
bank under which Genzyme would become primarily liable under the credit line in
event of a default by the Company. In consideration of Genzyme's agreement to
provide such a guaranty, the Company granted a first lien on all

                                       35
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 4.  BORROWINGS (CONTINUED)
assets of the Company and issued to Genzyme warrants to purchase 288,000 shares
of the Company's common stock for a period of ten years, exercisable at $4.875
per share (market price at the effective date of the New Credit Line). The
warrants, valued at $969,000, were recorded as a deferred financing charge,
included in other assets, and are being amortized to interest expense over the
life of the New Credit Line.

    The Company has also obtained various capital leasing commitments with
interest rates ranging from 9.79% to 14.23% and repayment terms of 48 months to
60 months.

    In March 1996, the Company entered into a Convertible Debt and Development
Funding Agreement (the "Convertible Debt Agreement") with Genzyme under which
Genzyme agreed to provide a revolving line of credit ("Genzyme Credit Line") in
the amount of $10 million. The line is convertible into the Company's common
stock (at the average market price for the 20-day period ending two days before
any conversion), at GTC's option, to maintain GTC's tangible net worth or by
Genzyme at any time for up to the full amount outstanding. Any amount so
converted reduces by an equivalent amount the availability on the line. During
1996, approximately $1.7 million of debt was converted into 219,565 shares of
common stock, reducing availability under the Genzyme Credit Line to
$8.3 million. The agreement was amended again in 1997, extending the expiration
date to March 31, 2000. In 1998, the availability was reduced to $6.3 million
and in connection with the Company's equity financing in February 2000, this
line was eliminated (see Note 12).

    The Company also has various mortgages and expansion lines relating to its
Primedica properties. Total loans outstanding at January 2, 2000 are $5,295,000
with interest rates ranging from 5.5% to 10%. Total availability under these
loans at January 2, 2000 is $350,000 which can be utilized for facility
expansion through March 2000. In connection with certain of the financing in
1997, the Company issued warrants to purchase 20,000 shares of the Company's
common stock with an expiration of ten years and an exercise price of $8.75 per
share. The warrants, valued at $130,000, are being amortized to interest expense
over the life of the mortgage.

    Under the various debt agreements, restrictive covenants include the
following: (i) for each of the fiscal quarters ending on March 31, 1999, the two
fiscal quarters ending on June 30, 1999 and the three fiscal quarters ending on
September 30, 1999, the Company will not permit its consolidated earnings before
interest, taxes, depreciation and amortization, exclusive of unfunded research
and development and losses on the ATIII LLC joint venture ("EBITDA"), for any
such period as at the last day of such period to exceed a loss of $5,000,000;
(ii) for the four fiscal quarters ending on December 31, 1999, the Company will
not permit its consolidated EBITDA as at the last day of such period to exceed a
loss of $2,000,000; (iii) commencing with the fiscal quarter ending on
March 31, 2000, the Company will not, as at the last day of each fiscal quarter,
permit its consolidated EBITDA for the period of four consecutive fiscal
quarters ending or most recently ended prior to such date to be less than zero.

                                       36
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 4.  BORROWINGS (CONTINUED)
    The Company's long-term debt consisted of the following:

<TABLE>
<CAPTION>
                                                              JANUARY 2,
                                                                 2000
                                                              ----------
<S>                                                           <C>
Note payable, with monthly payments of $48,750 through June
  2007, interest at 9.25%, collateralized by real estate....    $ 3,131
Term loan, with quarterly payments of $162,276 through
  December 2001, interest varies, collateralized by real
  estate....................................................      6,307
Note payable, with monthly payments of $15,250 through
  November 2009, interest at 9.25%, collateralized by real
  estate....................................................        850
Note payable, with monthly payments of $9,921 through May
  2001, interest at 9.5%, collateralized by real estate.....        559
Note payable, with quarterly payments of $8,605 through July
  2012, interest at 5.5%, collateralized by real estate.....        310
Note payable, with monthly payments of $4,625 through June
  2007, interest at 10%, collateralized by real estate......        290
Note payable, with monthly payments of $6,066 through
  December 2000, interest at 8%, collateralized by real
  estate....................................................         64
Capital lease obligations, with monthly payments of $208,398
  through February 2000 and December 2003, interest varies,
  collateralized by property................................      5,444
Other.......................................................         91
                                                                -------
                                                                $17,046
  Less current portion......................................      3,149
                                                                -------
                                                                $13,897
                                                                =======
</TABLE>

    Based on the borrowing rates currently available to the Company for loans
with similar terms and average maturities, the value of the notes payable
approximates fair value.

    Maturities of long-term debt are as follows:

<TABLE>
<S>                                                           <C>
2000........................................................  $ 3,149
2001........................................................    7,282
2002........................................................    1,847
2003........................................................    2,071
2004........................................................      580
Thereafter..................................................    2,117
                                                              -------
                                                              $17,046
                                                              =======
</TABLE>

    Cash paid for interest for the fiscal years ended January 2, 2000,
January 3, 1999, and December 28, 1997 was $2,267,000, $1,376,000, and
$1,098,000, respectively. In 1999 $105,000 of interest expense incurred was
capitalized. There was no capitalization of interest in 1998 or 1997.

                                       37
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 5.  STOCKHOLDERS' EQUITY

    The Company's authorized capital stock consists of 40,000,000 shares of
common stock, par value $0.01 per share, and 5,000,000 shares of preferred
stock, par value $0.01 per share of which 20,000 shares have been designated as
Series A Preferred Stock at January 2, 2000 and January 3, 1999 and 12,500 have
been designated as Series B Preferred Stock at January 2, 2000.

    A summary of the outstanding GTC warrants as of January 2, 2000, of which
896,324 are currently exercisable, is as follows:

<TABLE>
<CAPTION>
COMMON SHARES     EXERCISE       WARRANT EXPIRATION
ISSUABLE FOR   PRICE PER SHARE          DATE
- - -------------  ---------------   ------------------
<S>            <C>               <C>
   145,000       $2.84375          July 3, 2005
     2,000       $2.75000        December 31, 2001
     2,000       $6.50000        December 31, 2001
    20,000       $8.75000          June 26, 2007
   450,000       $15.1563         March 20, 2002
   288,000       $ 4.8750        December 28, 2008
    55,833       $6.30000        November 12, 2009
    29,491       $6.30000        November 22, 2009
- - -------------
   992,324
=============
</TABLE>

    In March 1998, the Company completed a private placement of $20 million face
value of Series A Preferred Stock to three institutional investors. The
Series A Preferred Stock was immediately convertible into the Company's common
stock at a price equal to $14.55 per share and commencing December 1998, at any
time at a price equal to the lower of $14.55 or the average of any five closing
bid prices selected by the holder over the twenty days prior to conversion.
There was a maximum number of shares into which the Series A Preferred Stock
could be converted. In connection with the financing, warrants to purchase
400,000 shares of the Company's common stock were issued to the institutional
investors. Each warrant has a four year term and an exercise price of $15.1563
per share. Because the preferred stock could be converted into common stock
immediately, the warrants, valued at approximately $1.2 million, were recognized
as a dividend payment to preferred shareholders during the first quarter of
1998. The Company also issued warrants to purchase 50,000 shares of common stock
to the placement agency under the terms noted above. The warrants were valued at
approximately $145,000 and recognized as a reduction of preferred stock capital
in excess of par. As a result of this financing, the amount available under the
line of credit in the Convertible Debt and Development Funding Agreement with
Genzyme has decreased from approximately $8.3 million to $6.3 million.

    During 1999, several institutional investors converted 9,000 shares of the
Series A Preferred Stock, $.01 par value per share, into 1,927,503 shares of the
Company's common stock at conversion prices ranging from $3.34 to $5.98 per
share. After these conversions, 11,000 shares of the Series A Preferred Stock
remained outstanding.

    In November 1999, the Company issued a redemption call on the outstanding
$11.0 million of Series A Preferred Stock. The holders of the Series A Preferred
Stock converted $5.3 million into 901,807 common shares at a conversion price of
$5.83 per share. The remaining amount was redeemed in cash by the holders at
115% of par value. The 15% premium was recognized as a dividend payment to
preferred shareholders in the amount of $861,000.

                                       38
<PAGE>
                        GENZYME TRANSGENICS CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

NOTE 5.  STOCKHOLDERS' EQUITY (CONTINUED)
    In conjunction with the redemption call, the Company issued $6.6 million of
Series B Preferred Stock to Genzyme. The Series B Preferred Stock carried an
initial dividend of 11% and is convertible by the holder into common stock at a
fixed rate of $6.30 per common share. All accumulated or accrued and unpaid
dividends will be paid upon conversion, liquidation or redemptions of the
Series B Preferred Stock. The Company has the sole right to redeem unconverted
Series B Preferred Stock for cash at any time at its original value plus accrued
dividends. The Series B Preferred Stock were converted into common stock in
February 2000 (see Note 12).

    In connection with the issuance of the Series B Preferred Stock, the Company
also issued to Genzyme 10-year warrants to purchase 85,324 shares of the
Company's common stock at an exercise price of $6.30 per share. In connection
with the warrants issued and a beneficial conversion feature, the Company
recorded a dividend of $636,000 to preferred shareholders in the fourth quarter
of 1999.

    As of January 2, 2000, the Company has reserved 5,124,466 shares of common
stock, subject to adjustment, for future issuance under the various classes of
warrants, Stock Option and Employee Stock Purchase Plans (see Note 6) and
preferred stock conversion.

    In December 1999, the Company completed a privately negotiated sale of
685,545 shares of common stock at $8.00 per share under a previously filed shelf
registration to two purchasers raising approximately $5.5 million in new equity.

NOTE 6.  EMPLOYEE BENEFIT PLANS

STOCK OPTIONS AND PURCHASE PLAN

    In May 1993, the Board of Directors adopted and the stockholders approved
the 1993 Equity Incentive Plan (the "Equity Plan"), the 1993 Director Stock
Option Plan (the "Director Plan") and the 1993 Employee Stock Purchase Plan (the
"Purchase Plan").

    Under the Equity Plan, 2,015,000 shares of common stock were issued or
reserved for issuance pursuant to incentive stock options, non-statutory stock
options, restricted stock awards, stock appreciation rights or stock units in
accordance with specific provisions to be established by a committee of the
Board of Directors at the time of grant. To date, all options have been issued
at 85% or greater of the fair value at the grant date. The Equity Plan also
permits the Company to assume outstanding options in an acquisition without
using shares reserved under the Plan. Of the foregoing total, 224,350 shares are
subject to options assumed by the Company in the acquisition of TSI. The number
of shares reserved for issuance under this plan was increased to 2,515,000,
3,015,000 and 3,390,000 in 1997, 1998 and 1999, respectively.

    Under the Director Plan, 50,000 shares of common stock were reserved for
issuance as non-statutory stock options at the rate of 2,000 shares for each
year of service to members of the Board of Directors who are not employees of
the Company. Such options are automatically granted at fair market value upon
the election or reelection of each director. The number of shares reserved for
issuance under this plan was increased to 100,000 and 200,000 in 1997 and 1998,
respectively. In May 1998, the plan was amended such that upon first election of
a director, such director shall receive 5,000 shares for each year of the term
of office to which he/she has been elected, and upon reelection such director
shall receive 3,000 shares for each year of the term of office to which he/she
has been reelected.

    Under these plans, an option's maximum term is ten years and vest ratably
20% on the date of issuance and 20% thereafter on the anniversary of the grant.

                                       39
<PAGE>
    Under the Purchase Plan, 300,000 shares of common stock were reserved for
the grant of purchase rights to employees in one or more offerings in accordance
with provisions to be established by a committee of the Board of Directors prior
to commencement of any offering period. In May 1997, the Board of Directors
increased the number of shares reserved for issuance under this plan to 900,000
shares. Participants may purchase shares of common stock at not less than 85% of
the lower of the market value at the beginning of each offering or on the
purchase date. Purchase dates occur every three months for a period of two years
from the offering date. Participants may not carry over balances from one
purchase date to the next. Offering dates occur every six months. A total of
42,726 shares of common stock remained available for issuance under the plan at
January 2, 2000. The purchases of common stock under the plan during fiscal 1999
and fiscal 1998 were 239,470 shares at an aggregate purchase price of
approximately $996,000 and 228,741 shares at an aggregate purchase price of
approximately $1,151,000, respectively. No compensation expense has been
recorded related to the Purchase Plan.

    The Company applies APB Opinion 25 and related interpretations in accounting
for its plans. Accordingly, no compensation cost has been recognized for options
granted to employees with exercise prices equal to or greater than the fair
market value at the grant date. The Company applies the disclosure only
provisions of Statement of Financial Accounting Standards No. 123 ("SFAS 123"),
ACCOUNTING FOR STOCK BASED COMPENSATION. Had compensation cost for the Company's
stock-based compensation plans been determined based on the fair value at the
grant dates as calculated in accordance with SFAS 123, the Company's net loss
and loss per share for the years ended January 2, 2000, January 3, 1999 and
December 28, 1997 would have been increased to the pro forma amounts indicated
below:

<TABLE>
<CAPTION>
                                 JANUARY 2, 2000                  JANUARY 3, 1999                 DECEMBER 28, 1997
                          ------------------------------   ------------------------------   ------------------------------
                                          NET LOSS                         NET LOSS
                                        AVAILABLE PER                    AVAILABLE PER
                                        COMMON SHARE                     COMMON SHARE                    LOSS PER SHARE
                          NET LOSS   (BASIC AND DILUTED)   NET LOSS   (BASIC AND DILUTED)   NET LOSS   (BASIC AND DILUTED)
                          --------   -------------------   --------   -------------------   --------   -------------------
<S>                       <C>        <C>                   <C>        <C>                   <C>        <C>
As Reported.............  $(18,761)        $(1.02)         $(19,590)        $(1.15)         $ (9,343)        $(0.54)
Pro Forma...............   (21,552)         (1.16)          (22,355)         (1.31)          (11,458)         (0.66)
</TABLE>

    The effects of applying SFAS 123 in this pro forma disclosure are not
indicative of future amounts. SFAS 123 does not apply to awards prior to 1995,
and additional awards in future years are anticipated.

                                       40
<PAGE>
    A summary of the status of the Company's stock option plans as of
January 2, 2000, January 3, 1999 and December 28, 1997 and changes during the
years ending on those dates is presented below:

<TABLE>
<CAPTION>
                                                                 WEIGHTED AVERAGE
                                                      SHARES      EXERCISE PRICE
                                                     ---------   ----------------
<S>                                                  <C>         <C>
Balance at December 29, 1996.......................  1,596,514       $5.7432
                                                     ---------       -------
  Granted
    Price = Fair value.............................    647,814       $7.7843
    Price > Fair value.............................     10,400       $7.8462
  Exercised........................................   (120,377)      $4.5246
  Cancelled........................................   (132,362)      $5.9003
                                                     ---------       -------
Balance at December 28, 1997.......................  2,001,989       $6.4611
                                                     ---------       -------
  Granted
    Price = Fair value.............................    706,532       $8.7152
    Price > Fair value.............................     18,000       $9.1875
  Exercised........................................   (105,383)      $4.5040
  Cancelled........................................   (107,703)      $7.5478
                                                     ---------       -------
Balance at January 3, 1999.........................  2,513,435       $7.1560
                                                     ---------       -------
  Granted
    Price = Fair value.............................    616,090       $4.7849
  Exercised........................................   (151,626)      $4.9580
  Cancelled........................................   (151,702)      $7.7554
                                                     ---------       -------
Balance at January 2, 2000.........................  2,826,197       $6.7266
</TABLE>

    At January 2, 2000, January 3, 1999 and December 28, 1997, there were
1,678,156, 1,335,511 and 991,367 shares exercisable at a weighted average
exercise price of $6.6906, $6.5495 and $6.1142, respectively. The weighted
average fair value of options granted during fiscal 1999, 1998 and 1997 was
$4.7849, $8.73 and $7.79, respectively.

    The following table summarizes information about stock options outstanding
at January 2, 2000:

<TABLE>
<CAPTION>
                                                       WEIGHTED-                      WEIGHTED-
     RANGE OF         NUMBER         REMAINING          AVERAGE         NUMBER         AVERAGE
 EXERCISE PRICES    OUTSTANDING   CONTRACTUAL LIFE   EXERCISE PRICE   EXERCISABLE   EXERCISE PRICE
- - ------------------  -----------   ----------------   --------------   -----------   --------------
<S>                 <C>           <C>                <C>              <C>           <C>
$2.5000 - $ 4.5625     873,312          7.69            $ 3.9546         466,559       $ 3.4410
$4.6250 - $ 7.3750     747,697          7.28            $ 6.7447         424,667       $ 6.7978
$7.4375 - $ 8.8750     699,742          5.66            $ 8.0094         542,660       $ 7.9852
$9.0000 - $ 9.7500     402,276          8.16            $ 9.1508         188,770       $ 9.1517
$9.8750 - $55.0000     103,170          7.47            $11.9084          55,500       $12.1599
                     ---------          ----            --------       ---------       --------
 2.5000 - $55.0000   2,826,197          7.14            $ 6.7266       1,678,156       $ 6.6906
                     =========                                         =========
</TABLE>

    At January 2, 2000, 291,581 shares were available for grant.

    The fair value of each stock option is estimated on the date of grant using
the Black-Scholes option-pricing model with the following weighted-average
assumption: an expected life of five years, expected volatility of 80% for
fiscal 1999 and 78% for each of fiscal 1998 and 1997, a dividend yield of 0% and
a risk-free interest rate of 5.82% for fiscal 1999, 5.48% for fiscal 1998 and
6.36% for fiscal 1997.

    The fair value of the employees' purchase rights was estimated using the
Black-Scholes model with the following weighted-average assumptions: a dividend
yield of 0%, expected volatility of 80% for fiscal 1999

                                       41
<PAGE>
and 78% for each of fiscal 1998 and 1997, an expected life of one year for
fiscal 1999, 1998 and 1997 and a risk-free interest rate of 4.81% for fiscal
1999, 5.55% for fiscal 1998 and 5.40% for fiscal 1997. The average fair value of
those purchase rights granted during fiscal 1999, fiscal 1998 and fiscal 1997
was $2.10, $3.27 and $2.71, respectively.

OTHER

    All employees of the Company, subject to certain eligibility requirements,
can participate in the Company's defined contribution plan. Currently, the
Company may match up to 50% of each participating employee's contributions to
the plan to a maximum of 3% of salary. The Company may also contribute an
additional 2% of each employee's salary as a retirement contribution. All
contributions are at the discretion of the Board of Directors. Expense
recognized under this plan was approximately $450,000, $515,000 and $464,000 for
the fiscal years ended January 2, 2000, January 3, 1999 and December 28, 1997,
respectively.

NOTE 7.  INCOME TAXES

    Deferred tax assets and deferred tax liabilities are recognized based on
temporary differences between the financial reporting and tax basis of assets
and liabilities using future expected enacted rates. A valuation allowance is
recorded against deferred tax assets if it is more likely than not that some or
all of the deferred tax assets will not be realized.

    The income tax (benefit) provision consisted of the following:

<TABLE>
<CAPTION>
                                                     1999       1998       1997
                                                   --------   --------   --------
<S>                                                <C>        <C>        <C>
Current:
  Federal........................................  $     0    $     0    $     0
  State..........................................      320        225         48
                                                   -------    -------    -------
Total Current....................................  $   320    $   225    $    48
                                                   =======    =======    =======
Deferred:
  Federal........................................   (8,677)    (5,418)    (3,158)
  State..........................................   (1,959)    (1,562)     1,241
Change in Valuation Allowance....................   10,636      6,980      1,917
                                                   -------    -------    -------
Total Deferred...................................  $    --    $    --    $    --
                                                   =======    =======    =======
</TABLE>

    The provision for income taxes was at rates different from the U.S. Federal
statutory income tax rate for the following reasons:

<TABLE>
<CAPTION>
                                                    FISCAL YEARS ENDED
                                   ----------------------------------------------------
                                   JANUARY 2, 2000   JANUARY 3, 1999   DECEMBER 28,1997
                                   ---------------   ---------------   ----------------
<S>                                <C>               <C>               <C>
Federal tax--expense (benefit)...       (34.0)%           (34.0)%            (34.0)%
Goodwill.........................         2.1               2.0                3.2
State taxes--net.................        (7.4)             (4.6)               9.1
Joint Venture loss...............          --                --                3.0
Other............................        (2.4)              1.8               (1.3)
Change in valuation allowance....        43.4              36.0               20.5
                                        -----             -----              -----
Effective tax rate...............         1.7%              1.2%               0.5%
                                        =====             =====              =====
</TABLE>

                                       42
<PAGE>
    The components of the deferred tax assets and liabilities at January 2, 2000
and January 3, 1999 respectively, are as follows (dollars in thousands):

<TABLE>
<CAPTION>
                                                   JANUARY 2, 2000   JANUARY 3, 1999
                                                   ---------------   ---------------
<S>                                                <C>               <C>
Deferred Tax Assets/(Liabilities):

Advance payments.................................      $ 3,718           $ 2,742
Accrued compensation reserves....................        1,366             1,126
Other reserves...................................        1,209             1,343
Tax credits......................................        2,598               974
Net operating loss carryforwards.................       34,973            26,804
Depreciation.....................................         (269)             (300)
Other............................................           20                12
                                                       -------           -------
Total deferred tax asset.........................       43,615           $32,701
Valuation allowance..............................      (43,615)          (32,701)
                                                       -------           -------
                                                       $    --           $    --
                                                       =======           =======
</TABLE>

    Due to the uncertainty surrounding the realization of these favorable tax
attributes in future income tax returns, the Company has placed a valuation
allowance against its otherwise recognizable deferred tax assets.

    As of January 2, 2000, the Company had federal net operating loss ("NOL")
and research and experimentation credit carryforwards of approximately
$90.9 million and $1.4 million, respectively, available to offset future federal
income tax liabilities, which expire at various dates through 2019. The federal
NOL includes approximately $2.3 million of stock option compensation expense
which, when realized, will be credited to additional paid in capital. The
utilization of a portion of the NOL and research and experimentation credit
carryforwards is subject to Section 382 of the Internal Revenue Code. This
section established an annual limitation, based on changes in the Company's
ownership, on the amount of income, which may be offset by these tax attributes.

    Approximately $40.6 million of these NOL's were acquired in connection with
its acquisition of TSI. Consequently, any realization of the benefit of these
purchased NOL's will be recorded as a reduction of goodwill. In 1995, goodwill
was reduced by approximately $1 million as a result of the utilization of
purchased NOL's to offset taxable gain principally resulting from the sale of
GDRU.

    The Company paid taxes of $320,000, $225,000 and $48,000 in fiscal 1999,
1998 and 1997, respectively.

NOTE 8.  SEGMENT AND REVENUE INFORMATION

    The Company has two reportable segments: contract research organization
("Primedica") and research and development ("Transgenics"). Primedica provides
services such as preclinical efficacy and safety testing, IN VITRO testing and
formulation development to pharmaceutical, biotechnology, medical device and
other companies. These services are provided by five different laboratories,
which are aggregated into the Primedica segment. Transgenics applies transgenic
technology to the development and production of genetically engineered proteins
for therapeutic, diagnostic and other biomedical uses, both in collaboration
with pharmaceutical and biotechnology companies and independently. Transgenics
also includes the cancer vaccine research program which produces idiotypic
cancer vaccines for B-cell lymphoma and Myeloma.

    The accounting policies are the same as those described in the summary of
significant accounting policies. The Company evaluates performance based on
profit or loss from operations before income taxes, interest expense and
interest revenue. The Company also accounts for intersegment sales as if the
sales were to third parties.

                                       43
<PAGE>
    The Company's reportable segments are strategic business units that offer
different products and services. They are managed separately because each
business unit requires different technology and marketing strategies.

    The following table presents certain segment financial information and the
reconciliation of segment financial information to consolidated totals as of and
for the years ended January 2, 2000, January 3, 1999 and December 28, 1997
(dollars in thousands). Asset information by segment is not reported because the
Company does not evaluate such information internally.

<TABLE>
<CAPTION>
                                                         FISCAL YEARS ENDED
                                              -----------------------------------------
                                              JANUARY 2,    JANUARY 3,    DECEMBER 28,
                                                 2000          1999           1997
                                              -----------   -----------   -------------
<S>                                           <C>           <C>           <C>
Revenues:
  Primedica--external customers.............   $ 54,959      $ 50,816        $43,417
  Primedica--intersegment...................      1,332         1,389          1,424
  Transgenics...............................     13,825        11,596         19,521
                                               --------      --------        -------
                                                 70,116        63,801         64,362
  Elimination of intersegment revenues......     (1,332)       (1,389)        (1,424)
                                               --------      --------        -------
                                               $ 68,784      $ 62,412        $62,938
                                               ========      ========        =======

Income (loss) from operations:
  Primedica.................................   $  1,606      $  2,342        $ 1,599
  Transgenics...............................     (5,517)       (8,303)        (1,956)
  Unallocated amounts:
  Corporate expenses........................     (9,116)       (8,120)        (7,184)
  Equity in loss of joint ventures..........     (3,797)       (4,285)          (811)
                                               --------      --------        -------
                                               $(16,824)     $(18,366)       $(8,352)
                                               ========      ========        =======

Capital expenditures:
  Primedica.................................   $  3,219      $  1,722        $ 4,215
  Transgenics...............................      3,023         4,201          2,034
  Corporate(1)..............................      2,412         1,986          2,408
                                               --------      --------        -------
                                               $  8,654      $  7,909        $ 8,657
                                               ========      ========        =======
</TABLE>

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

(1) Includes all expenditures financed through capital leases for equipment used
    by both segments. These expenditures were $2,131, $1,614, and $1,760 for the
    Primedica segment and $111, $290 and $722 for the Transgenics segment for
    the years ended January 2, 2000, January 3, 1999 and December 28, 1997.

    Net revenues to external customers are based on the location of the
customer.

    Geographic information for net revenues to external customers, by fiscal
year, is presented in the table below:

<TABLE>
<CAPTION>
                                    UNITED STATES     ASIA      EUROPE     CANADA     TOTAL
                                    -------------   --------   --------   --------   --------
<S>                                 <C>             <C>        <C>        <C>        <C>
1999..............................     60,733        1,681      4,242      2,128      68,784
1998..............................     53,508        3,276      5,628         --      62,412
1997..............................     49,120        9,178      4,640         --      62,938
</TABLE>

    All of the Company's long-lived assets are located in the United States.

                                       44
<PAGE>
    Revenues from Genzyme accounted for 11% of total revenues for the period
ending December 28, 1997. All of this revenue was attributable to the
Transgenics segment. No other single entity accounted for more than 10% of total
revenues for the periods presented in this table.

NOTE 9.  ARRANGEMENTS WITH GENZYME CORPORATION

    From the Company's inception, certain facilities and support services,
including both research and administrative support, have been provided by
Genzyme. For these services, the Company was charged $1,605,000, $3,568,000 and
$8,073,000 for the fiscal years ended January 2, 2000, January 3, 1999 and
December 28, 1997, respectively. These charges represent an allocation of the
Company's proportionate share of Genzyme's overhead costs using formulae which
management believes are reasonable based upon the Company's use of the
facilities and services. All other costs for all periods presented, including
payroll costs, are directly attributable to the Company and have been paid by
Genzyme and charged to the Company.

    In April 1993, the Company entered into several agreements under which
Genzyme has agreed to provide various services, facilities and funding to the
Company as described below:

SERVICES AGREEMENT

    Under the Services Agreement, the Company receives certain basic support
services in exchange for a fixed monthly payment ($37,080 for 9 months and
$37,500 for 3 months during 1999) adjusted annually. These basic services
include laboratory support, as well as assistance with certain administrative
functions including purchasing, data processing, risk management, corporate
communications and treasury activities. If the Company requests additional
services from Genzyme, the Company has agreed to pay Genzyme fully allocated
costs of those services. The Services Agreement is automatically renewed each
year thereafter unless terminated by either party not less than 90 days prior to
the end of any annual period. Under the Services Agreement, the Company made
payments of $446,000, $497,000 and $509,000 for the fiscal years ended
January 2, 2000, January 3, 1999 and December 28, 1997, respectively, and is
committed to make a minimum annual payment of $285,000 in 2000.

SUBLEASE AGREEMENT

    Under the Sublease Agreement, the Company has leased certain laboratory,
research and office space from Genzyme through May 1998 in exchange for fixed
monthly rent payments which approximate the estimated current rental value for
such space. In addition, the Company reimburses Genzyme for its pro rata share
of appropriate facilities' operating costs such as maintenance, cleaning,
utilities and real estate taxes. The sublease is automatically renewed each year
and renewals are subject to earlier termination of the sublease by either party
after the initial five-year term. Under the Sublease Agreement, the Company made
payments for the fiscal years ended January 2, 2000, January 3, 1999 and
December 28, 1997, of $137,000, $411,000 and $280,000, respectively, and is
committed to make a monthly minimum rental payment of $14,611 in 2000.

TECHNOLOGY TRANSFER AGREEMENT

    Under the Technology Transfer Agreement, Genzyme has transferred
substantially all of its transgenic assets and liabilities to the Company
including its ownership in the joint venture with Sumitomo Metal Industries,
assigned its relevant contracts and licensed to the Company technology owned or
controlled by it and relating to the production of recombinant proteins in the
milk of transgenic animals (the "Field") and the purification of proteins
produced in that manner. The license is worldwide and royalty free as to Genzyme
although the Company is obligated to Genzyme's licensors for any royalties due
them.

                                       45
<PAGE>
    As long as Genzyme's ownership of the Company remains below 50%, Genzyme may
use the transferred technology and the new technology only on its own behalf and
without any royalty obligation to the Company.

RESEARCH AND DEVELOPMENT AGREEMENT

    The Research and Development Agreement defines the relationship among the
parties whereby each entity may perform research for the other. This agreement
was in effect through December 31, 1998 and the parties are in the process of
negotiating an extension. Genzyme has agreed to use the Company to perform all
research in the field of production of recombinant proteins in transgenic
animals. The Company has a similar obligation to use Genzyme to purify proteins
produced transgenically. Each party must request such services from the other
company before seeking them from a third party although the Company may perform
purification services on its own behalf. These obligations are qualified by the
ability of each party to perform the requested services in accordance with the
performance, scheduling, cost and other specifications reasonably established by
the requesting party. Each company will receive payments from the other equal to
the performing party's fully allocated cost of performing such services, which
shall not be less than 80% of the annual budgets established by the parties
under the agreement, plus, in most cases, a fee equal to 10% of such costs. The
Company provided development services to Genzyme for which it recognized
revenues of $0, $11,000 and $11,000 for the fiscal years ended January 2, 2000,
January 3, 1999 and December 28, 1997, respectively. In addition, the Company
received $738,000 of services revenue, unrelated to research and development,
from Genzyme for the fiscal year ended January 2, 2000. The Company also
receives research and development services from Genzyme, for which it incurred
costs of $423,000, $1.9 million and $7.3 million in 1999, 1998 and 1997,
respectively.

    In March 1996, the Company entered into the Convertible Debt Agreement (see
Note 4) with Genzyme under which Genzyme agreed to provide a revolving line of
credit (the "Genzyme Credit Line") in the amount of $10 million and agreed to
fund development costs of the transgenic Antithrombin III ("AT-III") program.
During 1996, Genzyme converted $1,673,000 of debt to equity under this
agreement, leaving the availability under the Genzyme Credit Line at
$8.3 million which was subsequently reduced to $6.3 million in 1999 (see
Note 5). As of January 2, 2000, there were no amounts outstanding under the
Genzyme Credit Line. This line was eliminated as of February 2000 as a result of
the offering.

    In March 1997, the Company amended the Convertible Debt Agreement with
Genzyme to provide for continued funding by Genzyme of the development costs of
the AT-III program through June 30, 1997. In June 1997, the Company agreed to
extend the Convertible Debt Agreement until December 31, 1997. Under the
agreements in effect in 1997, Genzyme provided $7 million in development
funding. In July 1997, the Company and Genzyme announced an agreement to
establish a joint venture for the development, marketing and distribution of
AT-III, subject to the execution of a definitive agreement. On January 1, 1998,
a definitive collaboration agreement for the ATIII LLC joint venture between the
Company and Genzyme was executed (see Note 11).

    In November 1999, the Company completed a $6.6 million private placement of
Series B Preferred Stock to Genzyme. The proceeds from this placement were used
to redeem $6.6 million of the Company's Series A Preferred Stock. In connection
with the issuance of the Series B Preferred Stock, the Company issued warrants
to purchase 85,324 shares of the Company's common stock at $6.30 per share to
Genzyme.

NOTE 10.  OTHER AGREEMENTS

TUFTS UNIVERSITY SCHOOL OF VETERINARY MEDICINE ("TUFTS")

    Since 1988, pursuant to a cooperation agreement, the Company has funded an
ongoing program to develop transgenic animals at Tufts. During the term of the
agreement, which extends through September 2000, Tufts has agreed to work
exclusively with the Company for commercial applications within the field of
transgenic protein production in milk. The Company paid Tufts $313,000, $402,000
and $284,000

                                       46
<PAGE>
for the fiscal years ended January 2, 2000, January 3, 1999 and December 28,
1997, respectively. Sales of products derived from transgenic goats produced by
Tufts, or from their offspring, are subject to royalties payable to Tufts.

NOTE 11.  JOINT VENTURES

    In 1990, Genzyme entered into the SMIG JV joint venture with Sumitomo Metal
Industries to develop proteins produced transgenically. The SMIG JV has engaged
the Company, as the successor to Genzyme's Transgenics business, to perform
research and development for which the Company is reimbursed a portion of its
costs and receives additional payments based on achievement of specified
milestones. However, GTC does not have any intercompany profits or losses as a
result of its transactions with the SMIG JV. This three-year program ended
during 1993 and the parties decided to extend the contract for an additional
three years.

    The Company has contributed $4 million to the SMIG JV since inception. The
Company maintained a 22% ownership since 1994 and accounted for the SMIG JV on
the equity basis since then. For the fiscal years January 2, 2000, January 3,
1999 and December 28, 1997, the Company recognized revenue of $450,000, $0 and
$4,413,000, respectively, under the SMIG JV agreement. As of January 3, 1999,
the Company no longer has any obligation nor intention to provide financial
support to the SMIG JV and since the investment balance has been written down to
zero, it has discontinued recognizing its share of SMIG JV's losses.

    The SMIG JV has a license, exclusive as to Asia and non-exclusive as to
Europe, to use the Company's transgenic technology and to market and sell
products and transgenic animals produced by the SMIG JV based on that
technology. The Company retained the exclusive right to market and sell such
products within the Americas. Each party is obligated to make royalty payments
based on its sales of products developed by the SMIG JV and, additionally, the
Company is obligated to pay royalties on sales of other transgenically produced
proteins in Asia.

    On January 1, 1998, a definitive collaboration agreement for the ATIII LLC
joint venture between the Company and Genzyme was executed. Under the terms of
the agreement, Genzyme will fund 70% of the development costs, excluding
facility costs, up to $33 million including costs incurred in 1997. The Company
will fund the other 30% of these costs. Development costs in excess of these
amounts will be funded equally by the partners. The Company and Genzyme will
also make capital contributions to ATIII LLC sufficient to pay 50% each of all
new facility costs to be incurred. In addition to the funding, both partners
will contribute manufacturing, marketing and other resources to ATIII LLC at
cost. Under the agreement to establish the joint venture, Genzyme and the
Company were the only members and owned 3.7% and 96.3% interest, respectively.
In accordance with the executed purchase agreement, the Company sold and
assigned a 46.3% ownership interest to Genzyme so that Genzyme and GTC each own
50% of the venture. The purchase price was $12,500,010, payable as follows: an
initial payment of $10 upon execution of the purchase agreement, $2.5 million
after the second consecutive quarter in which net sales of collaboration
products for such quarter exceed $5 million, and $10 million on the first full
approval, if and when approved by the Food and Drug Administration ("FDA") of a
major market country or by the European Union's European Medicines Evaluation
Agency ("EMEA") of (i) a BLA filed by ATIII LLC for the use of transgenic AT-III
for the treatment of sepsis or (ii) an amendment to the BLA previously filed by
ATIII LLC and approved by the FDA of a major market country or by the EMEA to
add sepsis as an indication for transgenic AT-III. The Company will record the
contingent payments if and when received. Profits and losses are shared
according to ownership percentages. These agreements cover all territories other
than Asia. The Company accounts for its 50% ownership of the ATIII LLC under the
equity method. For the fiscal years ended January 2, 2000 and January 3, 1999,
the Company recognized research and development revenue and related expenses of
$4,491,000 and $3,318,000, respectively, under ATIII LLC.

                                       47
<PAGE>
    Summarized financial information for ATIII LLC is as follows:

<TABLE>
<CAPTION>
                                          AT DECEMBER 31, 1999   AT DECEMBER 31, 1998
                                          --------------------   --------------------
<S>                                       <C>                    <C>
Balance sheet data:
  Current assets........................         $2,646                 $3,525
  Noncurrent assets.....................            220                    200
  Current liabilities...................          2,554                  3,078
  Venturers' capital....................            312                    647
</TABLE>

<TABLE>
<CAPTION>
                                               FISCAL YEAR ENDED   FISCAL YEAR ENDED
                                                 DECEMBER 31,        DECEMBER 31,
                                                     1999                1998
                                               -----------------   -----------------
<S>                                            <C>                 <C>
Statement of operations data:
  Research and development expenses..........       $12,106             $11,984
  General and administrative expense.........           141                  35
                                                    -------             -------
    Net loss.................................       $12,247              12,019
                                                    =======             =======
</TABLE>

NOTE 12.  EVENTS SUBSEQUENT TO THE BALANCE SHEET DATE (PRO FORMA BALANCE SHEET)

    In February 2000, the Company completed a public offering of 3.5 million
shares of common stock at $20 per share. The Company granted the underwriters an
option to purchase an additional 525,000 shares of its common stock to cover
over-allotments which was exercised. In total, the Company issued 4,025,000
shares, including underwriter's overallotment, with net proceeds to the Company
of $75.1 million. Subsequent to the completion of the secondary public offering,
the Company paid down its revolving credit lines in the amount of
$15.8 million. Following this pay down, $15.8 million was available under these
credit lines. Accordingly, the Pro Forma Balance Sheet reflects net proceeds of
$75.1 million from the issuance of 4,025,000 shares of common stock as well as
the full pay down of the line of credit in the amount of $15.8 million.

    In conjunction with the offering, the Company issued a Notice of Redemption
to Genzyme for all outstanding shares of the Company's Series B Preferred Stock.
Prior to the effectiveness of this redemption, Genzyme converted the Series B
Preferred Stock into 1,048,021 shares of common stock. The Company paid a cash
dividend of $157,000 in conjunction with the conversion. After conversion of the
Series B Preferred Stock and completion of the public offering, Genzyme owns
approximately 31% of the Company's common stock and 37% on a fully diluted
basis. As a result of the offering, the $6.3 million Genzyme Credit Line was
eliminated.

    In March 2000, the Company issued a warrant call notice for the 450,000
warrants issued in connection with the Series A Preferred Stock. Each warrant
has an exercise price of $15.16 per share. All of the warrants were exercised
with proceeds to the Company of $6.8 million.

                                       48
<PAGE>
                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Steering Committee and the
  Venturers of AT III LLC:

    In our opinion, the accompanying balance sheets and the related statements
of operations, of cash flows and of changes in Venturers' capital present
fairly, in all material respects, the financial position of the ATIII LLC (the
"Company") (A Development Stage Enterprise) at December 31, 1999 and
December 31, 1998, and the results of its operations and its cash flows for each
of the two fiscal years in the period ended December 31, 1999 and for the
cumulative period from inception (January 1, 1998) to December 31, 1999 in
conformity with accounting principles generally accepted in the United States.
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 auditing standards
generally accepted in the United States, which 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,
assessing the accounting principles used and significant estimates made by
management, and evaluating the overall financial statement presentation. We
believe that our audits provide a reasonable basis for the opinion expressed
above.

                                          /s/ PricewaterhouseCoopers LLP

Boston, Massachusetts
February 22, 2000

                                       49
<PAGE>
                                   ATIII LLC

                        (A DEVELOPMENT STAGE ENTERPRISE)

                                 BALANCE SHEETS

<TABLE>
<CAPTION>
                                                              DECEMBER 31,   DECEMBER 31,
                                                                  1999           1998
                                                              ------------   ------------
<S>                                                           <C>            <C>
                                         ASSETS

Current assets:
  Cash......................................................  $    495,016   $  1,135,038
  Contributions receivable--Genzyme Transgenics
    Corporation.............................................     2,150,919      2,389,631
                                                              ------------   ------------
    Total current assets....................................     2,645,935      3,524,669
Net fixed assets............................................       220,258        200,484
                                                              ------------   ------------
                                                              $  2,866,193   $  3,725,153
                                                              ============   ============

                           LIABILITIES AND VENTURERS' CAPITAL

Current liabilities:
  Accounts payable--Genzyme Corporation.....................  $  2,110,218   $  2,109,969
  Accounts payable--Genzyme Transgenics Corporation.........       413,955        968,344
  Accrued expenses..........................................        30,000             --
                                                              ------------   ------------
Total liabilities...........................................     2,554,173      3,078,313
Venturers' capital:
  Genzyme Corporation.......................................    16,496,202      8,337,512
  Genzyme Transgenics Corporation...........................     8,081,261      4,328,147
  Deficit accumulated during the development stage..........   (24,265,443)   (12,018,819)
                                                              ------------   ------------
Total venturers' capital....................................       312,020        646,840
                                                              ------------   ------------
                                                              $  2,866,193   $  3,725,153
                                                              ============   ============
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                       50
<PAGE>
                                   ATIII LLC

                        (A DEVELOPMENT STAGE ENTERPRISE)

                            STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                                                        FOR THE
                                                                                      CUMULATIVE
                                                                                        PERIOD
                                                         FOR THE YEARS ENDED        FROM INCEPTION
                                                     ---------------------------   (JANUARY 1, 1998)
                                                     DECEMBER 31,   DECEMBER 31,    TO DECEMBER 31,
                                                         1999           1998             1999
                                                     ------------   ------------   -----------------
<S>                                                  <C>            <C>            <C>
Operating costs and expenses:
  General and administrative.......................  $    140,592   $     34,721     $    175,313
  Research and development--Genzyme Corporation....     7,615,478      8,666,328       16,281,806
  Research and development--Genzyme Transgenics
    Corporation....................................     4,490,554      3,317,770        7,808,324
                                                     ------------   ------------     ------------

Total operating costs and expenses.................    12,246,624     12,018,819       24,265,443
                                                     ------------   ------------     ------------

Net loss...........................................  $(12,246,624)  $(12,018,819)    $(24,265,443)
                                                     ============   ============     ============
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                       51
<PAGE>
                                   ATIII LLC

                        (A DEVELOPMENT STAGE ENTERPRISE)

                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                                                        FOR THE
                                                                                      CUMULATIVE
                                                                                        PERIOD
                                                         FOR THE YEARS ENDED        FROM INCEPTION
                                                     ---------------------------   (JANUARY 1, 1998)
                                                     DECEMBER 31,   DECEMBER 31,    TO DECEMBER 31,
                                                         1999           1998             1999
                                                     ------------   ------------   -----------------
<S>                                                  <C>            <C>            <C>
Operating activities:
Net loss...........................................  $(12,246,624)  $(12,018,819)    $(24,265,443)
Reconciliation of net loss to net cash used in
  operating activities:
  Depreciation.....................................        35,022         12,485           47,507
  Accounts receivable..............................       238,712             --          238,712
  Accounts payable.................................      (554,140)     3,078,313        2,524,173
  Accrued expenses.................................        30,000                          30,000
  Loss on disposal of fixed assets.................         4,742             --            4,742
                                                     ------------   ------------     ------------
Net cash used in operating activities..............   (12,492,288)    (8,928,021)     (21,420,309)
Investing activities:
  Purchase of property, plant and equipment........       (59,538)      (212,969)        (272,507)
                                                     ------------   ------------     ------------
Net cash used in investing activities..............       (59,538)      (212,969)        (272,507)
Financing activities:
  Capital contributions by Genzyme Corporation.....     8,158,690      8,337,512       16,496,202
  Capital contributions by Genzyme Transgenics
    Corporation....................................     3,753,114      1,938,516        5,691,630
                                                     ------------   ------------     ------------
Net cash provided by financing activities..........    11,911,804     10,276,028       22,187,832
                                                     ------------   ------------     ------------
Net increase (decrease) in cash and cash
  equivalents......................................      (640,022)     1,135,038          495,016
Cash and cash equivalents at beginning of period...     1,135,038             --               --
                                                     ------------   ------------     ------------
Cash and cash equivalents at end of period.........  $    495,016   $  1,135,038     $    495,016
                                                     ============   ============     ============
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                       52
<PAGE>
                                   ATIII LLC

                        (A DEVELOPMENT STAGE ENTERPRISE)

                  STATEMENTS OF CHANGES IN VENTURERS' CAPITAL

<TABLE>
<CAPTION>
                                                                        GENZYME        TOTAL
                                                          GENZYME     TRANSGENICS    VENTURERS'
                                                        CORPORATION   CORPORATION     CAPITAL
                                                        -----------   -----------   ------------
<S>                                                     <C>           <C>           <C>
Capital contribution..................................  $ 7,835,468   $ 1,938,516   $  9,773,984

Contributions receivable..............................           --     2,389,631      2,389,631

Advance contributions.................................      502,044            --        502,044

Net loss..............................................   (7,690,672)   (4,328,147)   (12,018,819)
                                                        -----------   -----------   ------------

Balance at December 31, 1998..........................      646,840            --        646,840
                                                        -----------   -----------   ------------

Capital contribution..................................    8,158,690     1,602,195      9,760,885

Contributions receivable..............................           --     2,150,919      2,150,919

Advance contributions.................................           --            --             --

Net loss..............................................   (8,493,510)   (3,753,114)   (12,246,624)
                                                        -----------   -----------   ------------

Balance at December 31, 1999..........................  $   312,020   $        --   $    312,020
                                                        ===========   ===========   ============
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                       53
<PAGE>
                                   ATIII LLC

                        (A DEVELOPMENT STAGE ENTERPRISE)

                         NOTES TO FINANCIAL STATEMENTS

A.  ORGANIZATION AND NATURE OF BUSINESS:

    ATIII LLC ("the Company") is a limited liability company organized under the
    laws of Delaware. The Company was established as a Joint Venture among
    Genzyme Corporation ("Genzyme") and Genzyme Transgenics Corporation ("GTC")
    under the terms of a collaboration agreement dated January 1, 1998 which
    stated original ownership of the Company at 96.3% and 3.7% by GTC and
    Genzyme (collectively the "Members"), respectively. Immediately thereafter,
    a purchase agreement was executed so that GTC sold to Genzyme a 46.3%
    ownership of the Company for an aggregate amount of $12,500,010 payable as
    follows: $10 upon execution of the purchase agreement, $2,500,000 after the
    second consecutive quarter in which net sales of collaboration products for
    such quarter exceed $5,000,000 and $10,000,000 upon product approval as
    defined in the agreement.

    The Company was organized as the vehicle for a joint venture between GTC and
    Genzyme to develop and commercialize products comprising of ATIII together
    with processes developed and/or licensed through GTC and Genzyme throughout
    the territories defined within the collaboration agreement (the
    "Collaboration Products"). Immediately following the execution of the
    collaboration and purchase agreements, a restated operating agreement was
    executed between Genzyme, GTC and ATIII LLC. The operating agreement
    establishes the allocation of profit and losses in accordance with the
    ownership percentages. In no event shall the net losses of the Company be
    allocated to a member if such allocation would cause or increase a negative
    balance in such member's adjusted capital account. In the event that net
    losses were reallocated to other members to avoid a negative balance,
    subsequent profits would first be allocated to the members to restore the
    capital accounts of the members to reflect the ownership percentage.

    Distributions shall be made annually to each Member under the terms set
    forth in the operating agreement in amounts equal to (a) the amount of items
    of gross income allocated to the Members in accordance with their respective
    ownership percentages and (b) thereafter, to the Members in proportion to
    their positive capital accounts reduced by their initial capital
    contributions, determined to be $13,500,000 each per the operating
    agreement.

    Since its inception, the Company has devoted substantially all of its
    efforts to establishing its business and developing its initial products.
    Accordingly through the date of the financial statements, the Company is
    considered to be a development stage company. The Company has incurred
    losses since inception and expects to incur net operating losses and
    negative cash flows from operations in the near term.

    Under the terms of the collaboration agreement, Genzyme and GTC are required
    to make capital contributions to the Company. Genzyme and GTC shall make
    contributions sufficient to pay (a) 70% and 30%, respectively, of all
    program costs, including costs incurred in 1997, other than new facility
    costs until such time as the aggregate capital contributions by Genzyme
    equals $33,000,000, and (b) 50% each of all program costs other than new
    facility costs thereafter. The Members will also make capital contributions
    to the Company sufficient to pay 50% of all new facility costs. In the event
    that either GTC or Genzyme fails to make a capital contribution pursuant to
    these requirements and the other Member does not elect to terminate the
    agreement, then the percentage interests in the Company and the future
    funding responsibilities of the Members shall be adjusted. At December 31,
    1999 and December 31, 1998, each Member owned 50% of the Company.

                                       54
<PAGE>
                                   ATIII LLC

                        (A DEVELOPMENT STAGE ENTERPRISE)

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

B.  ACCOUNTING POLICIES:

    BASIS OF PRESENTATION

    The financial statements have been prepared under the accrual method of
    accounting in conformity with generally accepted accounting principles in
    the United States of America. All balances are denominated in United States
    dollars, unless otherwise noted.

    FISCAL YEAR-END

    Under the terms of the operating agreement, the fiscal year end of the Joint
    Venture is December 31.

    CONCENTRATION OF CREDIT RISK

    The Company maintains all of its cash at one commercial bank.

    RESEARCH AND DEVELOPMENT EXPENSES

    Research and development costs are expensed as incurred.

    FIXED ASSETS

    Fixed assets consisting of equipment are stated at cost and depreciated
    using the straight-line method over an estimated useful life of seven years.

    USE OF ESTIMATES

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

    INCOME TAXES

    The Company is considered a partnership for federal and state income tax
    purposes. As such, items of income, loss, deductions and credits flow
    through to the Members. The Members have responsibility for the payment of
    any income tax and are entitled to losses for their proportionate share of
    taxable income or loss of the Company.

    UNCERTAINTIES

    The Company is subject to risks common to companies in the biotechnology
    industry, including but not limited to, development by its competitors of
    new technological innovations, protection of proprietary technology, health
    care cost containment initiatives, product liability and compliance with the
    government regulations, including those of the U.S. Department of Health and
    Human Services and the U.S. Food and Drug Administration.

                                       55
<PAGE>
                                   ATIII LLC

                        (A DEVELOPMENT STAGE ENTERPRISE)

                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)

C.  RESEARCH AND DEVELOPMENT COSTS:

    The research and development efforts are currently being conducted by the
    two members, GTC and Genzyme. The costs incurred by the two related parties,
    which are subject to an annual budget as approved by the Company's Steering
    Committee, are then charged to the Company.

D.  FIXED ASSETS:

    At December 31, 1999 and December 31, 1998, gross fixed assets of $267,766
    and $212,969, respectively, had an associated depreciation of $47,508 and
    $12,485, respectively.

E.  LICENSED TECHNOLOGY:

    During the terms of the collaboration agreement GTC and Genzyme have granted
    to the Company exclusive, irrevocable royalty-free rights and sublicenses,
    with the right to grant further sublicenses, under the GTC/Genzyme licensed
    ATIII patent rights, technology, know-how, and any associated technology and
    manufacturing know-how owned or controlled by the Members to develop, make,
    have made, use, offer for sale, sell, have sold, import and export
    collaboration products in the field and territory.

F.  TRANSACTIONS AND AFFILIATES:

    The Company's operating expenses are for payments to the Members and their
    affiliates for project expenses incurred, either as internal operating costs
    or as third-party obligations on behalf of the Company. At December 31, 1999
    and December 31, 1998, the Company owed $2,554,173 and $3,078,313,
    respectively, to the Members for project expenses and equipment purchased by
    Members on behalf of the Company.

    The Company has an agreement effective for 1999 with Genzyme Corporation,
    acting through its Molecular Oncology Division ("GMO") and ATIII LLC, to
    develop and commercialize the angiogenesis inhibitor protein aaATIII as a
    potential treatment for cancer. GMO and the Company will equally share in
    the development costs of aaATIII and equally share in any profits from a
    successful oncology product created through the collaboration. The Company
    will have the rights to develop aaATIII for potential non-oncologic
    indications. The Company incurred costs of $507,637 through December 31,
    1999.

G.  VENTURERS' CAPITAL:

    Venturers' capital is comprised of monthly capital contributions made by the
    Members to fund budgeted costs and expenses of the Company in accordance
    with the Collaboration Agreement, net of losses allocated to the Members. As
    of December 31, 1999 and December 31, 1998, there was an unpaid capital
    contribution of $2,150,919 and $2,389,631, respectively, owed to the Company
    from one Member, which has been included in venturers' capital in the
    accompanying financial statements. The amounts were subsequently paid in
    January 2000 and March 1999, respectively. Additionally, there was a
    contribution of $502,044 received from the other member in advance of 1999
    spending and none in 2000.

                                       56
<PAGE>
                                   SIGNATURES

    Pursuant to the requirements of Section 13 or 15(d) of the Securities and
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized, in Framingham,
Massachusetts on the 3rd day of April 2000.

<TABLE>
<S>                                                    <C>  <C>
                                                       GENZYME TRANSGENICS CORPORATION

                                                       By:         /s/ SANDRA NUSINOFF LEHRMAN
                                                            -----------------------------------------
                                                                     Sandra Nusinoff Lehrman
                                                              PRESIDENT AND CHIEF EXECUTIVE OFFICER
</TABLE>

    Pursuant to the requirements of the Securities Exchange Act of 1934 this
report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the date indicated.

<TABLE>
<CAPTION>
                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
<C>                                                    <S>                               <C>
                /s/ JAMES A. GERAGHTY
     -------------------------------------------       Chairman of the Board             April 3, 2000
                  James A. Geraghty

             /s/ SANDRA NUSINOFF LEHRMAN
     -------------------------------------------       President, Chief Executive        April 3, 2000
               Sandra Nusinoff Lehrman                   Officer and Director

                  /s/ JOHN B. GREEN                    Chief Financial and Accounting
     -------------------------------------------         Officer (Principal Financial    April 3, 2000
                    John B. Green                        and Accounting Officer)

               /s/ ROBERT W. BALDRIDGE
     -------------------------------------------       Vice Chairman of the board        April 3, 2000
                 Robert W. Baldridge

                /s/ HENRI A. TERNEER
     -------------------------------------------       Director                          April 3, 2000
                  Henri A. Terneer

                  /s/ ALAN E. SMITH
     -------------------------------------------       Director                          April 3, 2000
                    Alan E. Smith

                 /s/ HENRY E. BLAIR
     -------------------------------------------       Director                          April 3, 2000
                   Henry E. Blair

                  /s/ ALAN W. TUCK
     -------------------------------------------       Director                          April 3, 2000
                    Alan W. Tuck

               /s/ FRANCIS J. BULLOCK
     -------------------------------------------       Director                          April 3, 2000
                 Francis J. Bullock
</TABLE>

                                       57
<PAGE>
                                 EXHIBIT INDEX
                TO FORM 10-K FOR THE YEAR ENDED JANUARY 2, 2000

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
        2.1             Agreement and Plan of Merger, dated as of June 14, 1994,
                          among TSI Corporation ("TSI"), Genzyme Transgenics
                          Corporation ("GTC") and New Acorn Corporation. Filed as
                          Appendix A to the Joint Proxy Statement--Prospectus
                          included in Part I of the Company's Registration Statement
                          on Form S-4 (File No. 33-80924) (the "GTC S-4") and
                          incorporated herein by reference.

        2.2             Asset Purchase and Sale Agreement, dated as of January 3,
                          1995, between The TSI Center for Diagnostic Products, Inc.
                          and BioVest, Inc. Filed as Exhibit 2.2 to the original
                          filing of the Company's Annual Report on Form 10-K for the
                          year ended December 31, 1994 (Commission File
                          No. 0-21794) (the "GTC 1994 10-K") and incorporated herein
                          by reference. Pursuant to Item 601(b)(2) of Regulation
                          S-K, the schedules to this Agreement are omitted. A list
                          of such schedules appears in the table of contents to the
                          Agreement. The Company hereby undertakes to furnish
                          supplementally upon request a copy of any such schedule to
                          the Commission.

        2.3             Agreement and Plan of Merger, dated May 23, 1995, among GTC,
                          Biodevelopment Laboratories, Inc. and BDL Acquisition
                          Corp. Filed as Exhibit 2 to the Company's Current Report
                          on Form 8-K dated as of July 3, 1995 (File No. 0-21794)
                          and incorporated herein by reference.

        2.4             Share Purchase Agreement, dated as of September 1, 1995,
                          among GTC, TSI and Quintiles Holdings Limited. Filed as
                          Exhibit 2 to the Company's Current Report on Form 8-K
                          dated as of September 19, 1995 (File No. 0-21794) and
                          incorporated herein by reference.

        3.1.1           Restated Articles of Organization of GTC, filed with the
                          Secretary of the Commonwealth of Massachusetts on
                          December 27, 1993. Filed as Exhibit 3.1 to the Company's
                          Annual Report on Form 10-K for the year ended
                          December 31, 1993 (File No. 0-21794) (the "GTC 1993 10-K")
                          and incorporated herein by reference.

        3.1.2           Articles of Amendment to the Restated Articles of
                          Organization filed with the Secretary of the Commonwealth
                          of Massachusetts on October 3, 1994. Filed as
                          Exhibit 3.1.2 to GTC's Annual Report on Form 10-K for the
                          year ended December 28, 1997 (File No. 0-21794) (the "GTC
                          1997 10-K") and incorporated herein by reference.

        3.1.3           Articles of Amendment to the Restated Articles of
                          Organization filed with the Secretary of Commonwealth of
                          Massachusetts on June 26, 1997. Filed as Exhibit 3 to
                          GTC's Quarterly Report on Form 10-Q for the quarter ended
                          June 29, 1997 (File No. 0-21794) (the "GTC June 1997
                          10-Q") and incorporated herein by reference.

        3.1.4           Certificate of Vote of Directors Establishing a Series of a
                          Class of Stock (Series A Convertible Preferred Stock).
                          Filed with the Secretary of the Commonwealth of
                          Massachusetts on March 20, 1998. Filed as Exhibit 3.1.4 to
                          the GTC 1997 10-K and incorporated herein by reference.

        3.1.5           Certificate of Vote of Directors Establishing a Series of a
                          Class of Stock (Series B Convertible Preferred Stock).
                          Filed with the Secretary of the Commonwealth of
                          Massachusetts on November 12, 1999. Filed as
                          Exhibit 4.1.4 to the Company's Registration Statement on
                          Form S-3 (File No. 333-94187) and incorporated herein by
                          reference.
</TABLE>

                                       58
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
        3.2             By-Laws of the Company, as amended. Filed as Exhibit 3.1 to
                          the Company's Form 10-Q for the quarter ended July 4,
                          1999 (File No. 000-21794) (the "GTC July 1999 10-Q") and
                          incorporated herein by reference.

        4.1             Specimen Common Stock Certificate. Filed as Exhibit 4.1 to
                          the GTC S-1 and incorporated herein by reference.

        4.2             Specimen Series A Convertible Preferred Stock Certificate.
                          Filed as Exhibit 4.4 to the GTC 1997 10-K and incorporated
                          herein by reference.

        4.3             Specimen Series B Convertible Preferred Stock Certificate.
                          Filed as Exhibit 4.4 to the Company's Registration
                          Statement on Form S-3 (File No. 333-94187) and
                          incorporated herein by reference.

        4.4.1           TSI Specimen Warrant Certificate. Filed as Exhibit 4.8 to
                          TSI's Registration Statement on Form S-3 (File
                          No. 33-48107) and incorporated herein by reference.

        4.4.2           TSI Common Stock Purchase Warrant No. G-1, dated
                          September 27, 1994, issued to Financing for Science
                          International, Inc. ("FSI"). Filed as Exhibit 4.4 to the
                          original filing of the Company's Annual Report on
                          Form 10-K for the year ended December 31, 1994 (the
                          "GTC 1994 10-K) and incorporated herein by reference.

        4.4.3           Form of Notice of Assumption by GTC of the TSI Common Stock
                          Purchase Warrants Nos. F-1 and G-1. Filed as Exhibit 4.5
                          to the original filing of the GTC 1994 10-K and
                          incorporated herein by reference.

        4.5             Common Stock Purchase Warrant, dated June 30, 1995, issued
                          to FSI. Filed as Exhibit 10.9 to the Company's Quarterly
                          Report on Form 10-Q for the period ended July 2, 1995
                          (Commission File No. 0-21794) (the "GTC July 1995 10-Q")
                          and incorporated herein by reference.

        4.6             Common Stock Purchase Warrant, dated July 3, 1995, issued to
                          Genzyme. Filed as Exhibit 10.5 to the GTC July 1995 10-Q
                          and incorporated herein by reference.

        4.7             Common Stock Purchase Warrant, dated March 13, 1996, issued
                          to FSI. Filed as Exhibit 4.8 to the Company's Annual
                          Report on Form 10-K for the year ended December 31, 1995
                          (File No. 0-21794) (the "GTC 1995 10-K") and incorporated
                          herein by reference.

        4.8             Common Stock Purchase Warrant, dated as of June 26, 1997,
                          issued to Government Land Bank d/b/a The MassDevelopment
                          ("MassDevelopment"). Filed as Exhibit 4 to the GTC
                          June 1997 10-Q and incorporated herein by reference.

        4.9             Common Stock Purchase Warrant, dated as of December 28,
                          1998, issued to Genzyme. Filed as Exhibit 4.11 to the
                          original filing of the Company's Annual Report on
                          Form 10-K for the year ended January 3, 1999 (the "GTC
                          1999 10-K") and incorporated herein by reference.

        4.10            Registration Rights Agreement between the Company and
                          certain Stockholders named therein. Filed as
                          Exhibit 10.53 to the GTC 1997 10-K and incorporated herein
                          by reference.

        4.11            Warrant to Purchase Common Stock, dated November 22, 1999,
                          issued to Genzyme. Filed as Exhibit 8 to Genzyme's
                          Amendment No. 6 to Schedule 13D (File No. 055-48837) filed
                          with the Commission on November 24, 1999 and incorporated
                          herein by reference.

        4.12            Warrant to Purchase Common Stock, dated November 22, 1999,
                          issued to Genzyme. Filed as Exhibit 9 to Genzyme's
                          Amendment No. 6 to Schedule 13D (File No. 055-48837) filed
                          with the Commission on November 24, 1999 and incorporated
                          herein by reference.
</TABLE>

                                       59
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
       10.1             Technology Transfer Agreement between GTC and Genzyme
                          Corporation ("Genzyme"), dated as of May 1, 1993. Filed as
                          Exhibit 2.1 to the GTC S-1 and incorporated herein by
                          reference.**

       10.2             Research and Development Agreement between GTC and Genzyme,
                          dated as of May 1, 1993. Filed as Exhibit 10.1 to the
                          GTC S-1 and incorporated herein by reference.

       10.3             Services Agreement between GTC and Genzyme, dated as of
                          May 1, 1993. Filed as Exhibit 10.2 to the GTC S-1 and
                          incorporated herein by reference.

       10.4             Sublease Agreement between GTC and Genzyme, dated as of
                          May 1, 1993. Filed as Exhibit 10.3 to the GTC S-1 and
                          incorporated herein by reference.

       10.5             License Agreement between GTC and Genzyme, as successor to
                          IG Laboratories, Inc., dated as of May 1, 1993. Filed as
                          Exhibit 10.4 to the GTC S-1 and incorporated herein by
                          reference.

       10.6             Series A Convertible Preferred Stock Purchase Agreement
                          between GTC and Genzyme, dated as of May 1, 1993. Filed as
                          Exhibit 10.5 to the GTC S-1 and incorporated herein by
                          reference.

       10.7.1           Mortgage and Security Agreement, dated as of June 30, 1995,
                          between GTC and Genzyme. Filed as Exhibit 10.6 to the
                          GTC July 1995 10-Q and incorporated herein by reference.

       10.7.2           First Amendment to Mortgage and Security Agreement, dated as
                          of December 15, 1995, between GTC and Genzyme. Filed as
                          Exhibit 10.7.2 to the GTC 1996 10-K and incorporated
                          herein by reference.

       10.7.3           Second Amended to Mortgage and Security Agreement, dated as
                          of December 28, 1998, between the GTC and Genzyme. Filed
                          herewith.

       10.8*            GTC 1993 Equity Incentive Plan, as amended through May 25,
                          1999. Filed as Exhibit 10.2 to GTC's July 1999 10-Q and
                          incorporated herein by reference.

       10.9*            GTC 1993 Employee Stock Purchase Plan, as amended through
                          May 28, 1997. Filed as Exhibit 10.4 to the GTC June 1997
                          10-Q and incorporated herein by reference.

       10.10*           GTC 1993 Director Stock Option Plan, as amended through
                          May 27, 1998. Filed as Exhibit 10.3 to the GTC June 1998
                          10-Q and incorporated herein by reference.

       10.11            GTC Form of Confidential and Proprietary Information
                          Agreement signed by GTC employees. Filed as Exhibit 10.9
                          to the GTC S-1 and incorporated herein by reference.

       10.12            GTC Form of Agreement Not to Compete. Filed as
                          Exhibit 10.10 to the GTC S-1 and incorporated herein by
                          reference.

       10.13            Form of Indemnification Agreement between GTC and its
                          directors. Filed as Exhibit 10.12 to the original filing
                          of the GTC 1994 10-K and incorporated herein by reference.
                          Such agreements are materially different only as to the
                          signing directors and the dates of execution.

       10.14            License Agreement between GTC and Biogen, Inc., dated
                          December 26, 1990. Filed as Exhibit 10.12 to the GTC S-1
                          and incorporated herein by reference.**

       10.15            Agreement between GTC, SMI Genzyme Limited ("SMIG") and a
                          European pharmaceutical company, dated as of
                          September 29, 1990. Filed as Exhibit 10.13 to the GTC S-1
                          and incorporated herein by reference.**
</TABLE>

                                       60
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
       10.16            Research and Development Agreement between Genzyme and SMIG,
                          dated as of September 11, 1990, filed as Exhibit 10.14 to
                          the GTC S-1, as amended by an Agreement between GTC and
                          SMIG, dated as of March 15, 1994, filed as Exhibit 10.1 to
                          the Company's Quarterly Report on Form 10-Q for the
                          quarter ended March 31, 1994, and, in each case,
                          incorporated herein by reference.**

       10.17            Joint Venture and Shareholders Agreement between GTC,
                          Sumitomo Metal Industries, Ltd. ("SMI") and SMIG, dated as
                          of September 7, 1990. Filed as Exhibit 10.15 to the
                          GTC S-1 and incorporated herein by reference.

       10.18            Shareholders' Subscription Agreement among GTC, SMI and
                          SMIG, dated as of March 15, 1994. Filed as Exhibit 10.17
                          to the GTC 1993 10-K and incorporated herein by
                          reference.**

       10.19.1          Cooperation and Licensing Agreement between GTC and Tufts
                          University, dated September 6, 1988, as amended through
                          May 13, 1993 (the "Cooperation and Licensing Agreement").
                          Filed as Exhibit 10.18 to the GTC 1994 10-K and
                          incorporated herein by reference.**

       10.19.2          Amendment No. 7, dated April 1, 1993, to Cooperation and
                          Licensing Agreement. Filed as Exhibit 10.6 to the
                          Company's Quarterly Report on Form 10-Q for the period
                          ended October 1, 1995 (File No. 0-294) (the
                          "GTC October 1995 10-Q") and incorporated herein by
                          reference.

       10.19.3          Amendment No. 8, dated October 21, 1993, to Cooperation and
                          Licensing Agreement. Filed as Exhibit 10.7 to the
                          GTC October 1995 10-Q and incorporated herein by
                          reference.

       10.19.4          Amendment No. 9, dated December 1, 1993, to Cooperation and
                          Licensing Agreement. Filed as Exhibit 10.8 to the
                          GTC October 1995 10-Q and incorporated herein by
                          reference.**

       10.19.5          Amendment No. 10, dated November 1, 1993, to Cooperation and
                          Licensing Agreement. Filed as Exhibit 10.9 to the
                          GTC October 1995 10-Q and incorporated herein by
                          reference.

       10.19.6          Amendment No. 11, dated May 25, 1995, to Cooperation and
                          Licensing Agreement. Filed as Exhibit 10.10 to the
                          GTC October 1995 10-Q and incorporated herein by
                          reference.

       10.20            United States Patent No. 4,873,191 Sublicense Agreement
                          between DNX, Inc. and Genzyme Regarding Transgenic
                          Experimental Animals and Transgenic Mammary Production
                          Systems, dated February 1, 1990; and letter of amendment,
                          dated April 19, 1991. Filed together as Exhibit 10.17 to
                          the GTC S-1 and incorporated herein by reference.**

       10.21.1          Indenture of Lease, dated March 17, 1986, between TSI Mason
                          Laboratories, Inc. ("Mason") and Stephen W. Wolfe and
                          William C. Greene as Trustees of the Fifty-Seven Union
                          Street Trust (the "Mason Lease"). Filed as Exhibit 10.15
                          to TSI's Registration Statement on Form S-1 (File
                          No. 33-33708) and incorporated herein by reference.

       10.21.2          Amendment to the Mason Lease, dated September 30, 1993.
                          Filed as Exhibit 10.4 to Amendment No. 1 to TSI's Annual
                          Report on Form 10-K for the fiscal year ended June 27,
                          1993 (the "TSI 1993 10-K") and incorporated herein by
                          reference.

       10.21.3          Guaranty by TSI of the obligations of Mason under the TSI
                          Mason Lease. Filed as Exhibit 10.41 to the TSI 1993 10-K
                          and incorporated herein by reference.
</TABLE>

                                       61
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
       10.22            Lease Agreement, dated September 25, 1989, between TSI and
                          Laboratory Animal Services, Inc. and Greg E. Beatty and
                          Betty L. Beatty. Filed as Exhibit 10.15 to TSI's Annual
                          Report on Form 10-K for the fiscal year ended July 1, 1990
                          and incorporated herein by reference.

       10.23.1          Lease Agreement, dated November 14, 1990, between TSI and
                          Hechinger Enterprises ("the Hechinger Lease"). Filed as
                          Exhibit 10.21 to Amendment No. 2 to TSI's Registration
                          Statement on Form S-1 (File No. 33-39008) and incorporated
                          herein by reference.

       10.23.2          First Amendment to the Hechinger Lease, dated January 20,
                          1991. Filed as Exhibit 10.22 to Amendment No. 1 to TSI's
                          Registration Statement on Form S-1 (File No. 33-39008) and
                          incorporated herein by reference.

       10.24            Non-Competition and Confidentiality Agreement, dated as of
                          August 7, 1991, between TSI and Mildred S. Christian.
                          Filed as Exhibit 10.27 to Amendment No. 2 to TSI's
                          Registration Statement on Form S-1 (File No. 33-44724) and
                          incorporated herein by reference.

       10.25            Agreement to Terminate Existing Leases and Contemporaneously
                          to Enter Into a New Lease, dated as of July 1, 1992,
                          between Heffernan and Partners and Argus Research
                          Laboratories, Inc. Filed as Exhibit 10.31 to the TSI 1993
                          10-K and incorporated herein by reference.

       10.26.1          Lease Agreement, dated as of October 8, 1992, between W.M.
                          Rickman Construction Company and TSI Washington
                          Laboratories, Inc. (the "Washington Lease"). Filed as
                          Exhibit 10.32 to the TSI 1993 10-K and incorporated herein
                          by reference.

       10.26.2          Amendment to the Washington Lease, dated as of January 17,
                          1995. Filed as Exhibit 10.26.2 to the GTC 1997 10-K and
                          incorporated herein by reference.

       10.26.3          Second Amendment and accompanying Side Agreement to the
                          Washington Lease, dated as of July 7, 1997. Filed as
                          Exhibit 10.26.3 to the GTC 1997 10-K and incorporated
                          herein by reference.

       10.27            Lease dated March 26, 1999 between Genzyme Transgenics
                          Corporation and NDNE 9/90 Corporate Center LLC. Filed as
                          Exhibit 10.1 to GTC's July 1999 10-Q and incorporated
                          herein by reference.

       10.28.1          Second Amended and Restated Convertible Debt Agreement,
                          dated as of December 28, 1998, between the GTC and
                          Genzyme. Filed as Exhibit 10.37 to Genzyme's Annual Report
                          on Form 10-K for the year ended December 31, 1998 (File
                          No. 0-14680) and incorporated herein by reference.

       10.28.2          Amended and Restated Convertible Revolving Credit Note in
                          the amount of $6,300,000, dated as of December 28, 1998,
                          executed by GTC to Genzyme. Filed as Exhibit 10.29.2 to
                          the original filing of the GTC 1999 10-K and incorporated
                          herein by reference.

       10.28.3          Amended and Restated Reimbursement Agreement, dated as of
                          December 28, 1998, 1995, among GTC, certain of its
                          subsidiaries and Genzyme. Filed as Exhibit 10.57.4 to the
                          original filing of the GTC 1999 10-K and incorporated
                          herein by reference.

       10.28.4          Amended and Restated Security Agreement, dated as of
                          December 28, 1998, among GTC, certain of its subsidiaries
                          and Genzyme. Filed herewith.

       10.28.5          Hazardous Materials Indemnity Agreement, December 28, 1998,
                          between the GTC and Genzyme. Filed herewith.
</TABLE>

                                       62
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
       10.29            Master Equipment Lease Agreement, dated as of September 27,
                          1994, between TSI and FSI. Filed as Exhibit 10.33 to the
                          original filing of the GTC 1994 10-K and incorporated
                          herein by reference.

       10.30.1          Reserve Pledge and Security Agreement, dated as of
                          September 27, 1994, between TSI and FSI. Filed as
                          Exhibit 10.34 to the original filing of the GTC 1994 10-K
                          and incorporated herein by reference.

       10.30.2          Modification to Reserve Pledge and Security Agreement, dated
                          as of June 30, 1995, between TSI and FSI. Filed as
                          Exhibit 10.35.2 to the GTC 1997 10-K and incorporated
                          herein by reference.

       10.31            Security Agreement, dated as of September 27, 1994, between
                          TSI and FSI. Filed as Exhibit 10.35 to the original filing
                          of the GTC 1994 10-K and incorporated herein by reference.

       10.32.1          Intercreditor Agreement, dated as of July 3, 1995, among
                          GTC, TSI, certain other subsidiaries of GTC, Finova and
                          FSI. Filed as Exhibit 10.7 to the GTC July 1995 10-Q and
                          incorporated herein by reference.

       10.32.2          First Amendment to Intercreditor Agreement, dated as of
                          December 28, 1998, among GTC, Genzyme, certain other
                          subsidiaries of GTC, and Finova. Filed herewith.

       10.33            Guaranty of Lease, dated as of December 26, 1996, by GTC in
                          favor of FSI. Filed as Exhibit 10.38 to the GTC 1997 10-K
                          and incorporated herein by reference.

       10.34            Conversion and Registration Rights Agreement, dated as of
                          June 29, 1994, between GTC and TSI. Filed as
                          Exhibit 10.47 to the GTC S-4 and incorporated herein by
                          reference.

       10.35            Common Stock Purchase Agreement, dated as of June 8, 1995,
                          between GTC and Genzyme. Filed as Exhibit 10.1 to the
                          GTC July 1995 10-Q and incorporated herein by reference.

       10.36*           Amended and Restated Employment Agreement, dated as of
                          August 28, 1997, between the Company and John B. Green.
                          Filed as Exhibit 10.2 to the GTC September 1997 10-Q and
                          incorporated herein by reference.

       10.37*           Amended and Restated Employment Agreement, dated as of
                          September 16, 1997, between the Company and Peter Glick.
                          Filed as Exhibit 10.3 to the GTC September 1997 10-Q and
                          incorporated herein by reference.

       10.38*           Employment Agreement, dated as of March 27, 1996, between
                          GTC and Harry Meade. Filed as Exhibit 10.44 to the
                          Company's Quarterly Report on Form 10-Q for the period
                          ended March 31, 1996 and incorporated herein by reference.

       10.39*           Form of Employment and Consulting Agreement among GTC, TSI
                          and Robert W. Baldridge. Filed as Exhibit 10.56 to the
                          GTC S-4 and incorporated herein by reference.

       10.40.1          Agreement, dated as of September 21, 1994, between GTC and
                          Gene Pharming Europe B.V. ("Pharming B.V."). Filed as
                          Exhibit 10.49 to the Company's Registration Statement on
                          Form S-1 (File No. 333-05843) and incorporated herein by
                          reference.**

       10.40.2          Amendment Agreement, dated as of April 23, 1997, between
                          GTC and Pharming B.V. Filed as Exhibit 10.1 to the
                          Company's Quarterly Report on Form 10-Q for the quarter
                          ended March 30, 1997 (File No. 0-21794) (the
                          "GTC March 1997 10-Q") and incorporated herein by
                          reference.
</TABLE>

                                       63
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
       10.41            Development and Commercialization Agreement, dated as of
                          September 25, 1997, between the Company and Advanced Cell
                          Technology, Inc. Filed as Exhibit 10.5 to the GTC
                          September 1997 10-Q and incorporated herein by
                          reference.**

       10.42            Development and Commercialization Agreement, dated as of
                          September 25, 1997, between the Company and B. Braun
                          Melsungen AG. Filed as Exhibit 10.6 to the GTC
                          September 1997 10-Q and incorporated herein by
                          reference.**

       10.43.1          Loan Agreement, dated as of May 22, 1997, between Redfield
                          and Simmons First National Bank ("SFNB"). Filed as
                          Exhibit 10.49.1 to the GTC 1997 10-K and in order to
                          correct a typographical error regarding the date of the
                          agreement as contained in the version previously filed as
                          Exhibit 10.9.1 to the GTC June 1997 10-Q.

       10.43.2          Promissory Note in the amount of $700,000.00, dated as of
                          May 22, 1997, executed by Redfield and issued to SFNB.
                          Filed as Exhibit 10.49.2 to the GTC 1997 10-K in order to
                          correct a typographical error regarding the date of the
                          agreement as contained in the version previously filed as
                          Exhibit 10.9.2 to the GTC June 1997 10-Q.

       10.43.3          Promissory Note in the amount of $350,000.00, dated as of
                          May 22, 1997, executed by Redfield and issued to SFNB.
                          Filed as Exhibit 10.49.3 to the GTC 1997 10-K in order to
                          correct a typographical error regarding the date of the
                          agreement as contained in the version previously filed as
                          Exhibit 10.9.3 to the GTC June 1997 10-Q.

       10.43.4          Mortgage, dated as of May 22, 1997, entered into by and
                          between Redfield and SFNB. Filed as Exhibit 10.49.4 to the
                          GTC 1997 10-K in order to correct a typographical error
                          regarding the date of the agreement as contained in the
                          version previously filed as Exhibit 10.9.4 to the GTC
                          June 1997 10-Q.

       10.43.5          Security Agreement, dated as of May 22, 1997, entered into
                          by and between Redfield and SFNB. Filed as
                          Exhibit 10.49.5 to the GTC 1997 10-K in order to correct a
                          typographical error regarding the date of the agreement as
                          contained in the version previously filed as
                          Exhibit 10.9.5 to the GTC June 1997 10-Q.

       10.43.6          Unconditional Guaranty, dated as of May 22, 1997, executed
                          by TSI Corporation, Inc. in connection with the Loan
                          Agreement, dated as of May 22, 1997, between Redfield and
                          SFNB. Filed as Exhibit 10.49.6 to the GTC 1997 10-K in
                          order to correct a typographical error regarding the date
                          of the agreement as contained in the version previously
                          filed as Exhibit 10.9.6 to the GTC June 1997 10-Q.

       10.43.7          Unconditional Guaranty, dated as of May 22, 1997, executed
                          by the Company in connection with the Loan Agreement,
                          dated as of May 22, 1997, between Redfield and SFNB. Filed
                          as Exhibit 10.49.7 to the GTC 1997 10-K in order to
                          correct a typographical error regarding the date of the
                          agreement as contained in the version previously filed as
                          Exhibit to 10.9.7 the GTC June 1997 10-Q.

       10.44.1          Loan Agreement, dated as of May 22, 1997, between TSI
                          Redfield Laboratories, Inc. ("Redfield") and Jefferson
                          County, Arkansas ("Jefferson County"). Filed as
                          Exhibit 10.2.1 to the GTC June 1997 10-Q and incorporated
                          herein by reference.

       10.44.2          Promissory Note in the amount of $350,000.00, dated as of
                          May 22, 1997, executed by Redfield and issued to Jefferson
                          County. Filed as Exhibit 10.2.2 to the GTC June 1997 10-Q
                          and incorporated herein by reference.

       10.44.3          Mortgage, dated as of May 22, 1997, entered into by and
                          between Redfield and Jefferson County, Arkansas. Filed as
                          Exhibit 10.2.3 to the GTC June 1997 10-Q and incorporated
                          herein by reference.
</TABLE>

                                       64
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
       10.44.4          Guaranty Agreement, dated as of May 22, 1997, executed by
                          the Company in connection with the Loan Agreement, dated
                          as of May 22, 1997, between Redfield and Jefferson County.
                          Filed as Exhibit 10.2.4 to the GTC June 1997 10-Q and
                          incorporated herein by reference.

       10.45.1          Loan Agreement, dated as of June 26, 1997, between
                          GTC Mason Laboratories ("Mason") and MassDevelopment.
                          Filed as Exhibit 10.8.1 to the GTC June 1997 10-Q and
                          incorporated herein by reference.

       10.45.2          Promissory Note in the amount of $5,000,000.00, dated as of
                          June 26, 1997, executed by Mason and issued to
                          MassDevelopment. Filed as Exhibit 10.8.2 to the GTC
                          June 1997 10-Q and incorporated herein by reference.

       10.45.3          Mortgage and Security Agreement, dated as of June 26, 1997,
                          entered into by and between Mason and MassDevelopment.
                          Filed as Exhibit 10.8.3 to the GTC June 1997 10-Q and
                          incorporated herein by reference.

       10.45.4          Guaranty, dated as of June 26, 1997, executed by the Company
                          in connection with the Loan Agreement, dated as of
                          June 26, 1997, between Mason and MassDevelopment. Filed
                          10.8.4 as Exhibit to the GTC June 1997 10-Q and
                          incorporated herein by reference.

       10.45.5          Hazardous Materials Indemnification Agreement, dated as of
                          June 26, 1997, entered into by and between Mason and
                          MassDevelopment. Filed as Exhibit 10.8.5 to the GTC
                          June 1997 10-Q and incorporated herein by reference.

       10.46.1          Amended and Restated Operating Agreement of ATIII LLC dated
                          as of January 1, 1998. Filed as Exhibit 10.52.1 to the GTC
                          1997 10-K and incorporated herein by reference.**

       10.46.2          Purchase Agreement between GTC and Genzyme dated as of
                          January 1, 1998, transferring an interest in ATIII LLC
                          from Genzyme to GTC. Filed as Exhibit 10.52.2 to the GTC
                          1997 10-K and incorporated herein by reference.**

       10.46.3          Collaboration Agreement among Genzyme, GTC and ATIII LLC,
                          dated as of January 1, 1998. Filed as Exhibit 10.52.3 to
                          the GTC 1997 10-K and incorporated herein by reference.**

       10.47*           Employment Agreement dated as of July 1, 1998 between the
                          Company and Dr. Sandra Nusinoff Lehrman. Filed as
                          Exhibit 10.1 to the GTC June 1998 10-Q and incorporated
                          herein by reference.

       10.48*           Amendment No. 1 to Employment Agreement between the Company
                          and Dr. Sandra Nusinoff Lehrman. Filed as Exhibit 10.2 to
                          the Company's Quarterly Report on Form 10-Q for the period
                          ended September 27, 1998 (File No. 0-21794) (the "GTC
                          September 1998 10-Q) and incorporated herein by reference.

       10.49*           Amendment No. 1 to Employment Agreement between the Company
                          and John B. Green. Filed as Exhibit 10.3 to the GTC
                          September 1998 10-Q and incorporated herein by reference.

       10.50*           Consulting Agreement between the Company and James A.
                          Geraghty. Filed as Exhibit 10.4 to the GTC
                          September 1998 10-Q and incorporated herein by reference.

       10.51.1          Credit Agreement between GTC and Fleet National Bank, dated
                          as of December 28, 1998. Filed as Exhibit 10.57.1 to the
                          original filing of the GTC 1999 10-K and incorporated
                          herein by reference.

       10.51.2          Revolving Credit Note in the amount of $17,500,000, dated as
                          of December 28, 1998, executed by GTC and issued to Fleet
                          National Bank. Filed as Exhibit 10.57.2 to the original
                          filing of the GTC 1999 10-K and incorporated herein by
                          reference.
</TABLE>

                                       65
<PAGE>

<TABLE>
<CAPTION>
     EXHIBIT NO.                                DESCRIPTION
- - ---------------------   ------------------------------------------------------------
<C>                     <S>
       10.51.3          Term Note in the amount of $7,100,000, dated as of
                          December 28, 1998, executed by GTC and issued to Fleet
                          National Bank. Filed as Exhibit 10.57.3 to the original
                          filing of the GTC 1999 10-K and incorporated herein by
                          reference.

       10.51.4          First Amendment to Credit Agreement dated as of
                          November 12, 1999 between Fleet National Bank and GTC.
                          Filed herewith.

       10.52            Extension and Modification of Promissory Note, Mortgage,
                          Security Agreement and Loan Agreement dated March 31,
                          1999, by and between Primedica Redfield, Inc. and Simmons
                          First National Bank. Filed as Exhibit 10 to the Company's
                          Quarterly Report on Form 10-Q for the period ended
                          April 4, 1999 (File No. 000-21794) and incorporated herein
                          by reference.

       23.1             Consent of PricewaterhouseCoopers LLP. Filed herewith.

       27               Financial Data Schedule. Filed herewith.

       99               Important Factors Regarding Forward-Looking Statements.
                          Filed herewith.
</TABLE>

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

 *  Indicates a management contract or compensatory plan.

**  Certain confidential information contained in the document has been omitted
    and filed separately with the Securities and Exchange Commission pursuant to
    Rule 406 of the Securities Act of 1933, as amended, or Rule 24b-2
    promulgated under the Securities and Exchange Act of 1934, as amended

                                       66

<PAGE>

                                                                  Exhibit 10.7.3

               SECOND AMENDMENT TO MORTGAGE AND SECURITY AGREEMENT

      This Second Amendment to Mortgage and Security Agreement (the "Amendment")
is made as of the 28th day of December, 1998, by and between Genzyme Transgenics
Corporation, a Massachusetts corporation with its principal office at Five
Mountain Road, Framingham, Massachusetts 01701 (the "Mortgagor") and Genzyme
Corporation, a Massachusetts corporation with its principal office at One
Kendall Square, Cambridge, Massachusetts 02139 (the "Mortgagee").

      Reference is made to the following facts:

A. The Mortgagor is the owner of a certain parcel of real property with all
improvements thereon located on Route 31 in the Towns of Spencer and Charlton,
Massachusetts, which real property is more particularly described in the
Original Mortgage (as defined below) (the "Mortgaged Property").

B. The Mortgaged Property is encumbered by a certain Mortgage and Security
Agreement dated as of June 30, 1995, from Mortgagor to Mortgagee and recorded in
the Worcester County (Worcester District) Registry of Deeds (the "Worcester
Registry") on July 11, 1995, in Book 17160, Page 36, as modified by a certain
First Amendment to Mortgage and Security Agreement dated as of December 15,
1995, and recorded in the Worcester Registry in Book ______, Page ____ (as so
amended to date, the "Original Mortgage").

C. The Original Mortgage secures the payment and performance of certain
Obligations (as defined in the Original Mortgage) of Mortgagor to Mortgagee more
particularly described in the Original Mortgage. In particular, the Obligations
secured by Original Mortgage include (i) Mortgagor's obligations under certain
credit and term loan facilities provided by Mortgagee to Mortgagor and referred
to in the Original Mortgage as the "Loan"; and (ii) the obligations of Mortgagor
and its subsidiaries to reimburse Mortgagee for any and all payments made by
Mortgagee under the Reimbursement Agreement or any of the other Guaranty
Documents executed in connection with the Bank Loan, as such capitalized terms
are defined in the Original Mortgage.

D. On or about the date hereof, Mortgagor and Mortgagee are restructuring the
Loan (the "Amended and Restated Loan"), and Mortgagor and its affiliates are
refinancing the Bank Loan by obtaining new revolving credit and term loan
facilities from Fleet National Bank ("Fleet") (the "Fleet Loan"), Mortgagee is
guarantying the obligations of Mortgagor and its affiliates under such Fleet
Loan, and Mortgagor is agreeing to reimburse Mortgagee for all payments made by
Mortgagee under such guaranty.

E. Mortgagor and Mortgagee are entering into this Amendment to confirm their
intent and agreement that the obligations of Mortgagor under the Amended and
Restated Loan and the reimbursement obligations of Mortgagor and its affiliates
to Mortgagee in connection with such new Fleet Loan shall constitute
"Obligations" secured by the Original Mortgage, as amended hereby.

<PAGE>

      NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged and agreed, Mortgagor and Mortgagee hereby agree as follows:

      1. Unless otherwise defined herein, capitalized terms used in this
Amendment shall have the same meanings ascribed to them in the Original
Mortgage.

      2. To reflect the restructuring of the Loan and the new Fleet Loan, the
Original Mortgage is hereby amended as follows:

            (a) All references in the Original Mortgage to the "Loan", the "Loan
Agreement"; the "Credit Note"; the "Term Note"; and the "Loan Documents";
respectively, are hereby amended to refer to: the "Amended and Restated Loan, as
the same may hereafter be further amended, modified, increased, reviewed,
replaced or restated from time to time"; the "Second Amended and Restated
Convertible Debt Agreement dated December ___, 1998, by and between Mortgagor
and Mortgagee, as the same may hereafter be further amended, modified,
increased, replaced or restated from time to time"; the "Amended and Restated
Convertible Term Note by and between Mortgagor and Mortgagee dated December ___,
1998, as the same may hereafter be amended, modified, increased, replaced or
restated from time to time"; the "Amended and Restated Convertible Term Note by
and between Mortgagor and Mortgagee dated December ___, 1998 as the same may
hereafter be amended, modified, increased, replaced or restated from time to
time"; and "all documents and instruments now or hereafter executed and
delivered by Mortgagor evidencing, governing or securing the Amended and
Restated Loan, as such documents and instruments may hereafter be amended,
modified, increased, renewed, replaced or restated from time to time";
respectively.

            (b) All references in the Original Mortgage to the "Bank"; the "Bank
Loan"; the "Bank Note"; the "Bank Agreement"; and the "Bank Documents";
respectively, are hereby amended to refer to: "Fleet, and any successor to or
replacement of Fleet that hereafter provides refinancing from time to time for
Mortgagor"; the "Fleet Loan, as the same may hereafter be amended, modified,
increased, renewed, replaced or restated from time to time or replaced from time
to time by refinancing provided by a different financial institution"; the
"collectively Revolving Credit Note and Term Note dated December ___, 1998, as
the same may hereafter be amended, modified, increased, replaced or related from
time to time"; the "Fleet Loan"; the Credit Loan Agreement dated December ___,
1998, between Mortgagor and Fleet, as the same may hereafter be amended,
modified, increased, replaced or related from time to time"; and "all documents
and instruments now or hereafter executed and delivered by Mortgagor or its
affiliates evidencing, governing or securing the Bank Loan, as such documents
and instruments may hereafter be amended, modified, increased, renewed, replaced
or restated from time to time"; respectively

            (c) All references in the Original Mortgage to the "Guaranty"; the
"Reimbursement Agreement"; and the "Guaranty Documents"; respectively, are
hereby amended to refer to: the "Guaranty Agreement dated as of December ___,
1998 by Mortgagee in favor of Fleet, as the same may hereafter be amended,
increased, modified, renewed, replaced, or restated from time to time"; the
"Amended and Restated Reimbursement Agreement dated as of December ___, 1998,
between Mortgagor and Mortgagee, as the same may hereafter be


                                       2
<PAGE>

amended, increased, modified, renewed, replaced, or restated from time to time";
and "all documents and instruments now or hereafter executed and delivered by
Mortgagor or its affiliates evidencing, governing or securing the obligations of
Mortgagor or its affiliates in connection with such Amended and Restated
Reimbursement Agreement, as such instruments and documents may hereafter be
amended, modified, increased, renewed, replaced or restated from time to time";
respectively.

      3. Warranties and Representations of Borrower. Mortgagor represents and
warrants to Mortgagee that Mortgagor is not in default under the Original
Mortgage, as amended hereby, or any of the Obligations secured thereby, nor is
there any circumstance which, upon the giving of notice or the passage of time
or both, would constitute a default thereunder. Mortgagor stipulates and
declares to Mortgagee that Mortgagor has no charge, claim, demand, plea or
set-off upon, for or against the Original Mortgage, as amended hereby, or any of
the Obligations secured thereby.

      4. Priority of Lien. Nothing contained in this Amendment is intended to
impair or diminish the priority or validity of the lien of the Original
Mortgage, as amended hereby.

      5. Amendment. Except as specifically amended or modified by this
Amendment, all terms and conditions contained in the Original Mortgage shall
remain unchanged and in full force and effect as provided therein.

      6. Counterparts. This Amendment may be executed in one or more
counterparts each of which shall be deemed an original but which together shall
constitute one and the same instrument.


                                       3
<PAGE>

      Executed as a sealed instrument as of the date first above written.

Mortgagor:                          GENZYME TRANSGENICS CORPORATION


                                    By: /s/ John B. Green
                                       ----------------------------------
                                       John B. Green
                                       Vice President


Mortgagee:                          GENZYME CORPORATION


                                    By:
                                       ----------------------------------
                                       Evan Lebson
                                       Treasurer

<PAGE>

      Executed as a sealed instrument as of the date first above written.

Mortgagor:                          GENZYME TRANSGENICS CORPORATION


                                    By:
                                       ----------------------------------
                                       John B. Green
                                       Vice President


Mortgagee:                          GENZYME CORPORATION


                                    By: /s/ Evan Lebson
                                       ----------------------------------
                                       Evan Lebson
                                       Treasurer

<PAGE>

                              COMMONWEALTH OF MASSACHUSETTS

  ____________, ss.                                            December __, 1998

      Then personally appeared before me the above-named John B. Green, the Vice
President of Genzyme Transgenics Corporation, known to me, and acknowledged that
he executed the foregoing instrument as his free act and deed on behalf of said
corporation, and that he was duly authorized to do so on behalf of said
corporation.


                                    --------------------------------------------
                                    Notary Public
                                    My commission expires:



                              COMMONWEALTH OF MASSACHUSETTS



  Middlesex, ss.                                               December 23, 1998
- - ------------

      Then personally appeared before me the above-named Evan Lebson, the
Treasurer of Genzyme Corporation, known to me, and acknowledged that he executed
the foregoing instrument as his free act and deed on behalf of said corporation,
and that he was duly authorized to do so on behalf of said corporation.


                                    /s/ Linda C. Leonti
                                    --------------------------------------------
                                    Notary Public
                                    My commission expires: 9/7/2001





<PAGE>

                                                                 Exhibit 10.28.4

                     AMENDED AND RESTATED SECURITY AGREEMENT

      THIS AMENDED AND RESTATED SECURITY AGREEMENT dated as of December 28, 1998
(this "Agreement") among GENZYME CORPORATION, a Massachusetts corporation having
its principal offices at One Kendall Square, Cambridge, Massachusetts 02139 (the
"Secured Party") and GENZYME TRANSGENICS CORPORATION (the "Borrower"), GTC
CANCER VACCINES, INC. TSI CORPORATION, GENZYME TRANSGENICS SECURITIES
CORPORATION, PRIMEDICA CORPORATION (formerly TSI Holdings, Inc.), PRIMEDICA
CAMBRIDGE, INC. (formerly BioDevelopment Laboratories, Inc.), PRIMEDICA
ROCKVILLE, INC. (formerly TSI Washington Laboratories, Inc.), PRIMEDICA
REDFIELD, INC. (formerly TSI Redfield Laboratories, Inc.), PRIMEDICA WORCESTER,
INC., (formerly TSI Mason Laboratories, inc.), PRIMEDICA ARGUS RESEARCH
LABORATORIES, INC. (formerly Argus Research Laboratories, Inc.) TRANSGENICS
INVESTMENTS, INC. and HEALTH AND SCIENCES RESEARCH INCORPORATED (with the
Borrower, each a "Debtor" and collectively, the "Debtors").

                              W I T N E S S E T H:

      WHEREAS, the Secured Party has agreed pursuant to a Guaranty dated as of
the date hereof (as amended and amended and restated from time to time, the
"Guaranty") to guaranty certain obligations of the Borrower to Fleet National
Bank;

      WHEREAS, the Secured Party and the Borrower have entered into a Second
Amended and Restated Convertible Debt Agreement dated as of the date hereof (as
amended and amended and restated from time to time, the "Convertible Debt
Agreement") pursuant to which the Secured Party has agreed to make certain loans
to the Borrower;

      WHEREAS, the Secured Party and the Debtors have entered into an Amended
and Restated Reimbursement Agreement dated as of the date hereof (as amended and
amended and restated from time to time, the "Reimbursement Agreement") pursuant
to which the Debtors agreed, subject to the terms and conditions set forth
therein, to reimburse the Secured Party for any payments made by the Secured
Party pursuant to the Guaranty and the Debtors (other than the Borrower) agreed
to guaranty the obligations of the Borrower to the Secured Party under the
Convertible Debt Agreement; and

      WHEREAS, the obligation of the Secured Party to enter into the Guaranty
and the Convertible Debt Agreement is subject to the condition, among others,
that each Debtor execute and deliver this Agreement and grant the security
interest hereinafter described;

<PAGE>

      NOW THEREFORE, in consideration of the willingness of the Secured Party to
enter into the Guaranty and the Convertible Debt Agreement, and for other good
and valuable consideration, receipt of which is hereby acknowledged, it is
hereby agreed, with the intent to be legally bound, as follows. This Agreement
amends, restates and supercedes the Security Agreement.

      1. Defined Terms. Except as otherwise expressly defined herein, all
capitalized terms shall have the meanings ascribed to them in the Reimbursement
Agreement.

      2. Security Interest. As security for the Secured Obligations described in
Section 3 hereof, each Debtor hereby grants to the Secured Party a security
interest in and lien on all of the tangible and intangible personal property and
fixtures of such Debtor, including without limitation the property described
below, whether now owned or existing or hereafter acquired or arising, together
with any and all additions thereto and replacements therefor and proceeds and
products thereof (hereinafter referred to collectively as the "Collateral"):

            (a) all of such Debtor's tangible personal property, including
without limitation all present and future goods, inventory (including, without
limitation, all materials, merchandise, raw materials, work in process, finished
goods and supplies), equipment, farm products, merchandise, furniture, fixtures,
office supplies, motor vehicles, machinery, tools, computers, and associated
equipment now owned or hereafter acquired, including, without limitation, all
tangible personal property used in the operation of the businesses of such
Debtor,

            (b) to the extent that such rights are assignable as collateral,
such Debtor's rights under all present and future authorizations, permits,
licenses and franchises issued, granted or licensed to such Debtor for the
operation of its business;

            (c) to the extent that such rights are assignable, all of such
Debtor's rights under all present and future joint venture, technology transfer,
research and development, development funding, construction, engineering, and
management agreements and all related agreements;

            (d) all of such Debtor's other personal property, including, without
limitation, all present and future accounts, accounts receivable, contract
rights, general intangibles (including without limitation, all customer lists,
catalogs and other printed materials, goodwill, indexes, lists, data and other
documents and papers relating thereto, blue prints, designs and research and
development), trademarks, patents, copyrights, rights in intellectual property,
trade secrets, proprietary or confidential information, inventions (whether
patented or patentable or not), technical information, procedures, designs,
knowledge, know-how, software, data bases, data, skill, expertise, experience,
processes, models, drawings, materials and records now owned or hereafter
acquired by a Debtor stored on any medium, including electronic medium, related
to any of the personal property of such Debtor, all instruments, documents and
chattel paper, and all debts, obligations and liabilities in whatever form owing
to such Debtor from any person, firm or corporation or any other legal entity,
whether now existing or hereafter arising, now or hereafter received by or
belonging or owing to such Debtor, and all guaranties and security therefor; and


                                       2
<PAGE>

            (e) all investment property of the Debtor, including, without
limitation, the shares of capital stock (the "Pledged Stock") of the companies
(the "Listed Companies") listed in Schedule II attached hereto ascribed to such
Debtor (the Pledged Stock and any additional investment property, securities or
collateral pledged hereunder are sometimes herein referred to collectively as
the "Pledged Collateral").

      Any of the foregoing terms which are defined in the Uniform Commercial
Code as in effect in the Commonwealth of Massachusetts shall have the meaning
provided in the Uniform Commercial Code as supplemented and expanded by the
foregoing.

      3. Secured Obligations. The security interest hereby granted shall secure
the due and punctual payment and performance of the following liabilities and
obligations of each Debtor (herein called the "Secured Obligations"):

            (a) All amounts payable under the Convertible Debt Agreement and the
Reimbursement Agreement (collectively, the "Secured Agreements");

            (b) Any and all other obligations of the Borrower or any of the
other Debtors to the Secured Party under the Secured Agreements or under any
agreement or instrument relating thereto, all as amended from time to time; and

            (c) Any and all other debt of the Borrower or any of the other
Debtors to the Secured Party, including, without limitation, the Subsidiary
Obligations, whether direct or indirect, absolute or contingent, due or to
become due or now existing or hereafter arising, including, without limitation,
any and all other fees, premiums, penalties or other Subsidiary Obligations or
debt of such Debtor to the Secured Party.

      4. Perfection Certificate. Each Debtor has delivered to the Secured Party
a Perfection Certificate in the form appended hereto as Schedule I attached
hereto. Each Debtor represents that the completed Perfection Certificate
delivered to the Secured Party is true and correct in every respect and the
facts contained in such certificate are accurate. Each Debtor shall promptly
supplement the Perfection Certificate promptly after obtaining information which
would require a correction or addition to the Perfection Certificate.

      5. Special Warranties and Covenants of Each Debtor. Each Debtor hereby
warrants and covenants to the Secured Party that:

            (a) The current principal place of business of the Debtor, and all
of the Debtor's current additional places of business, if any, and the current
locations of all of its Collateral are listed in Schedule I. The Debtor will not
change its principal or any other place of business, or the location of any of
its Collateral from the locations set forth in Schedule I, or make any change in
the Debtor's name or conduct the Debtor's business operations under any
fictitious business name or trade name, without, in any such case, at least
thirty (30) days' prior written notice to the Secured Party.

            (b) Except for the security interest created hereunder and as
otherwise expressly disclosed in or permitted by the Secured Agreements, the
Debtor is the owner of its Collateral


                                       3
<PAGE>

free from any lien, security interest or encumbrance and the Debtor will defend
its Collateral against all claims and demands of all persons at any time
claiming the same or any interest therein.

            (c) Except as permitted by the Secured Agreements or otherwise
consented to in writing by the Secured Party, the Debtor will not sell or
otherwise dispose of any of its Collateral or any interest therein nor will the
Debtor create, incur or permit to exist any mortgage, lien, charge, encumbrance
or security interest whatsoever with respect to its Collateral. The Debtor will
advise the Secured Party promptly after the Debtor becomes aware, in reasonable
detail, (i) of any lien, security interest, encumbrance or claim made or
asserted against any of the Collateral, and (ii) of the occurrence of any other
event which would have an adverse effect on the aggregate value of the
Collateral or on the security interests created hereunder.

            (d) The Debtor will at its own expense maintain insurance covering
the Collateral against such risks, with such insurers, in such form, and in such
amounts as shall from time to time be required by the Secured Party but in any
event, in such amounts and with such coverage as is customary in the Debtor's
type of business. All insurance policies shall be written so as to be payable in
the event of loss to the Secured Party and shall provide for thirty (30) days'
written notice to the Secured Party of cancellation or modification. At the
request of the Secured Party, all insurance policies shall be furnished to and
held by the Secured Party. The Debtor hereby assigns to the Secured Party return
premiums, dividends and other amounts which may be or become due upon
cancellation of any such policies for any reason whatsoever and directs the
insurers to pay the Secured Party any sums so due. The Secured Party is hereby
irrevocably appointed as attorney-in-fact to collect return premiums, dividends
and other amounts due on any insurance policy and the proceeds of such
insurance, to settle any claims with the insurers in the event of loss or
damage, to endorse settlement drafts and in the event of a default under this
Agreement to cancel, assign or surrender any insurance policies. If, while any
Secured Obligations are outstanding, any return premiums, dividends, other
amounts or proceeds are paid to the Secured Party under such policies, the
Secured Party may at the Secured Party's option take either or both of the
following actions: (i) apply such return premiums, dividends, other amounts and
proceeds in whole or in part to the payment or satisfaction of any of the
Secured Obligations in whatever order the Secured Party determines; or (ii) pay
over such return premiums, dividends, other amounts and proceeds in whole or in
part to the Debtors for the purpose of repairing or replacing the Collateral
destroyed or damaged, any return premiums, dividends, other amounts and proceeds
so paid over by the Secured Party to be secured by this Agreement.

            (e) The Debtor will pay promptly when due all taxes and assessments
on its Collateral or for its use or operation, except for taxes and assessments
except as are being contested in good faith by appropriate proceedings and which
with the Debtor has set aside adequate reserves. The Secured Party may at its
option discharge any taxes, liens, security interests or other encumbrances to
which any Collateral is at any time subject, and may purchase insurance on any
Collateral and pay for the repair, maintenance or preservation thereof, and the
Debtor agrees to reimburse the Secured Party on demand for any payments or
expenses incurred by the Secured Party pursuant to the foregoing authorization
and any unreimbursed amounts shall constitute Secured Obligations for all
purposes hereof.


                                       4
<PAGE>

            (f) The Debtor will comply with all acts, rules, regulations,
orders, decrees and directions of any governmental authority, applicable to the
Collateral or any part thereof or to the operation of the Debtor's business;
provided, however, that the Debtor may contest any act, regulation, order,
decree or direction in any reasonable manner which shall not in the sole opinion
of the Secured Party, adversely affect the Secured Party's rights hereunder or
adversely affect the first priority of its security interest in the Collateral.

            (g) The Debtor will pay promptly when due all charges imposed upon
the Collateral or in respect of its income or profits therefrom and all claims
of any kind (including, without limitation, claims for labor, material and
supplies).

            (h) The Debtor will perform and comply with all obligations in
respect of accounts receivable, chattel paper, contracts and licenses and all
other agreements to which it is a party or by which it is bound.

            (i) The Debtor will furnish to the Secured Party, as often as the
Secured Party reasonably requests, statements and schedules further identifying
and describing the Collateral and such other reports in connection with the
Collateral as the Secured Party may reasonably request all in reasonable detail.

            (j) The Collateral may be transferred to a third party upon an Event
of Default without the consent of any other third party.

            (k) The Debtor will promptly execute and deliver to the Secured
Party such financing statements, certificates and other documents or instruments
as may be necessary to enable the Secured Party to perfect or from time to time
renew the security interest granted hereby, including, without limitation, such
financing statements, certificates and other documents as may be necessary to
perfect a security interest in any additional Collateral hereafter acquired by
the Debtor or in any replacements or proceeds thereof. The Debtor authorizes and
appoints the Secured Party, in case of need, to execute such financing
statements, certificates and other documents pertaining to the Secured Party's
security interest in its Collateral in its stead, with full power of
substitution, as the Debtor's attorney in fact. The Secured Party may from time
to time request and the Debtor shall deliver copies of all members lists and
subscriber lists. The Debtor further agrees that a carbon, photographic or other
reproduction of a security agreement or financing statement is sufficient as a
financing statement under this Agreement.

            (l) The Debtor will give the Secured Party notice of each office at
which records of the Debtor pertaining to all intangible items of its Collateral
are kept. Except as may be provided in such notice, the records concerning all
of its intangible Collateral are and will be kept at the address shown on
Schedule I as the principal place of business of the Debtor.

      6. Fixtures, etc. It is the intention of the parties hereto that none of
the Collateral shall become fixtures and each Debtor will take all such
reasonable action or actions as may be necessary to prevent any of its
Collateral from becoming fixtures. Without limiting the generality of the
foregoing, each Debtor will, if requested by the Secured Party, use its best
efforts to obtain waivers of lien, in form satisfactory to the Secured Party,
from each lessor of real property on which any of its Collateral is or is to be
located.


                                       5
<PAGE>

      7. Distributions. In case, upon the dissolution, winding up, liquidation
or reorganization of the Listed Companies whether in bankruptcy, insolvency or
receivership proceedings or upon an assignment for the benefit of creditors or
any other marshaling of the assets and liabilities of the Listed Companies or
otherwise, any sum shall be paid or any property shall be distributed upon or
with respect to any of the Pledged Collateral, such sum shall be paid over to
the Secured Party as collateral security for the Secured Obligations. In case
any stock dividend shall be declared on any of the Pledged Collateral, or any
share of stock or fraction thereof shall be issued pursuant to any stock split
involving any of the Pledged Collateral, or any distribution of capital
(excluding ordinary cash dividends) shall be made on any of the Pledged
Collateral, or any property shall be distributed upon or with respect to the
Pledged Collateral pursuant to recapitalization or reclassification of the
capital of the Listed Companies, the shares or other property so distributed
shall be delivered to the Secured Party to be held as collateral security for
the Secured Obligations.

      8. Events of Default. A Debtor shall be in default under this Agreement
upon the happening of any of the following events or conditions (herein called
"Events of Default"):

            (a) Default shall be made in the due and punctual payment of any
principal of or premium, if any, or interest on any of the Secured Obligations
as and when the same shall become due and payable (whether at maturity or at a
date fixed for any prepayment or installment or by declaration or acceleration
or otherwise) and such default shall continue beyond the expiration of the
applicable period of grace, if any; or

            (b) The breach, violation or other non-performance of any term,
covenant, condition, agreement or obligation of such Debtor contained herein; or

            (c) Any other Event of Default (as defined or provided in any of the
Secured Agreements) shall occur.

      9. Rights and Remedies of Secured Party. Upon the occurrence of any Event
of Default, such default not having previously been waived, remedied or cured,
the Secured Party shall have the following rights and remedies:

            (a) All rights and remedies provided by law, including, without
limitation, those provided by the Uniform Commercial Code;

            (b) All rights and remedies provided in this Agreement; and

            (c) All rights and remedies provided in the Secured Agreements or in
the Collateral Documents, or in any other agreement, document or instrument
pertaining to the Secured Obligations.

      10. Right to Transfer into Name of Secured Party, etc. In case there shall
exist an Event of Default, but subject to the provisions of the Uniform
Commercial Code or other applicable law, the Secured Party may cause all or any
of the Pledged Collateral to be transferred into its name or into the name of
its nominee or nominees. So long as no Event of Default shall exist, each Debtor
shall be entitled to exercise as such Debtor shall deem fit, but in a manner not


                                       6
<PAGE>

inconsistent with the terms hereof or of the Secured Obligations, the voting
power with respect to its Pledged Collateral.

      11. Right of Secured Party to Exercise Voting Power, etc. In case there
shall exist an Event of Default, the Secured Party shall be entitled to exercise
the voting power with respect to the Pledged Collateral, to receive and retain,
as collateral security for the Secured Obligations, any and all dividends or
other distributions at any time and from time to time declared or made upon any
of the Pledged Collateral, and to exercise any and all rights of payment,
conversion, exchange, subscription or any other rights, privileges or options
pertaining to the Pledged Collateral as if it were the absolute owner thereof,
including, without limitation, the right to exchange, at its discretion, any and
all of the Pledged Collateral upon the merger, consolidation, reorganization,
recapitalization or other readjustment of the Listed Companies or, upon the
exercise of any such right, privilege or option pertaining to the Pledged
Collateral, and in connection therewith, to deposit and deliver any and all of
the Pledged Collateral with any committee, depositary, transfer Secured Party,
registrar or other designated agency upon such terms and conditions as the
Secured Party may determine, all without liability except to account for
property actually received, but the Secured Party shall have no duty to exercise
any of the aforesaid rights, privileges or options and shall not be responsible
for any failure to do so or delay in so doing.

      12. Royalty Free License. If at any time the Secured Party has the right
to dispose of any of the Collateral which is subject to a patent, trademark or
copyright which a Debtor owns or controls through a license or otherwise, such
Debtor grants to the Secured Party a royalty free license to use any such
patent, trademark or copyright, in addition to the grant of any security
interest granted to the Secured Party in such patent, trademark or copyright to
dispose of any such Collateral. Such royalty free license shall extend to any
person or persons purchasing such Collateral from the Secured Party.

      13. Right of Secured Party to Dispose of Collateral, etc. Upon the
occurrence of any Event of Default, such Event of Default not having previously
been waived, remedied or cured, but subject to the provisions of the Uniform
Commercial Code or other applicable law, the Secured Party shall have the right
to take possession of the Collateral and, in addition thereto, the right to
enter upon any premises on which the Collateral or any part thereof may be
situated and remove the same therefrom. The Secured Party may require a Debtor
to make its Collateral (to the extent the same is moveable) available to the
Secured Party at a place to be designated by the Secured Party which is
reasonably convenient to both parties or transfer any information related to
such Collateral to the Secured Party by electronic medium. Unless such
Collateral is perishable or threatens to decline speedily in value or is of a
type customarily sold on a recognized market, the Secured Party will give such
Debtor at least ten (10) days' prior written notice at the address of such
Debtor set forth above (or to such other address or addresses as such Debtor
shall specify in writing to the Secured Party) of the time and place of any
public sale thereof or of the time after which any private sale or any other
intended disposition thereof is to be made. Any such notice shall be deemed to
meet any requirement hereunder or under any applicable law (including the
Uniform Commercial Code) that reasonable notification be given of the time and
place of such sale or other disposition. All such sales shall be at such
commercially reasonable price or prices as the Secured Party shall deem best and
either for cash or on credit or for future delivery (without assuming any
responsibility for credit risk). At any


                                       7
<PAGE>

such sale or sales the Secured Party may purchase any or all of the Pledged
Collateral to be sold thereat upon such terms as the Secured Party may deem
best. Upon any such sale or sales the Pledged Collateral so purchased shall be
held by the purchaser absolutely free from any claims or rights of whatsoever
kind or nature, including any equity of redemption and any similar rights, all
such equity of redemption and any similar rights being hereby expressly waived
and released by each Debtor. In the event any consent, approval or authorization
of any governmental agency will be necessary to effectuate any such sale or
sales, the affected Debtor shall execute, and hereby agrees to cause the Listed
Companies to execute, all such applications or other instruments as may be
required.

      Each Debtor recognizes that the Secured Party may be unable to effect a
public sale of all or a part of the Pledged Collateral by reason of certain
prohibitions contained in the Securities Act of 1933, but may be compelled to
resort to one or more private sales to a restricted group of purchasers, each of
whom will be obligated to agree, among other things, to acquire such Pledged
Collateral for its own account, for investment and not with a view to the
distribution or resale thereof. Each Debtor acknowledges that private sales so
made may be at prices and upon other terms less favorable to the seller than if
such Pledged Collateral were sold at public sales without such restrictions, and
that the Secured Party has no obligation to delay sale of any such Pledged
Collateral for the period of time necessary to permit such Pledged Collateral to
be registered for public sale under the Securities Act of 1933. Each Debtor
agrees that any such private sales shall not be deemed to have been made in a
commercially unreasonable manner solely because they shall have been made under
the foregoing circumstances.

      14. Collection of Amounts Payable on Account of Pledged Collateral, etc.
Upon the occurrence of any Event of Default, the Secured Party may, but without
obligation to do so, demand, sue for and/or collect any money or property at any
time due, payable or receivable, to which it may be entitled hereunder, on
account of or in exchange for any of the Pledged Collateral and shall have the
right, for and in the name, place and stead of the Debtor, to execute
endorsements, assignments or other instruments of conveyance or transfer with
respect to all or any of the Pledged Collateral.

      15. Care of Pledged Collateral in Secured Party's Possession. Beyond the
exercise of reasonable care to assure the safe custody of the Pledged Collateral
while held hereunder, the Secured Party shall have no duty or liability to
collect any sums due in respect thereof or to protect or preserve rights
pertaining thereto, and shall be relieved of all responsibility for the Pledged
Collateral upon surrendering the same to the affected Debtor.

      16. Restrictions on Transfer, etc. To the extent that any restrictions
imposed by the charter or by-laws of the Listed Companies or any other document
or instrument would in any way affect or impair the pledge of the Pledged
Collateral hereunder or the exercise by the Secured Party of any right granted
hereunder, including, without limitation, the right of the Secured Party to
dispose of the Pledged Collateral upon the occurrence of any Event of Default,
each Debtor hereby waives such restrictions, and represents and warrants that it
has caused the Listed Companies to take all necessary action to waive such
restrictions, and each Debtor hereby agrees that it will take any further action
which the Secured Party may reasonably request in order that the Secured Party
may obtain and enjoy the full rights and benefits granted to the Secured Party
by this Agreement free of any such restrictions.


                                       8
<PAGE>

      17. Right of Secured Party to Use and Operate Collateral, etc. Upon the
occurrence of any Event of Default, such default not having previously been
waived, remedied or cured, but subject to the provisions of the Uniform
Commercial Code or other applicable law, the Secured Party shall have the right
and power to take possession of all or any part of the Collateral, and to
exclude any Debtor and all persons claiming under such Debtor wholly or partly
therefrom, and thereafter to hold, store, and/or use, operate, manage and
control the same. Upon any such taking of possession, the Secured Party may,
from time to time, at the expense of such Debtor, make all such repairs,
replacements, alterations, additions and improvements to and of its Collateral
as the Secured Party may deem proper. In any such case the Secured Party shall
have the right to manage and control the Collateral and to carry on the business
and to exercise all rights and powers of such Debtor in respect thereto as the
Secured Party shall deem best, including the right to enter into any and all
such agreements with respect to the operation of the Collateral or any part
thereof as the Secured Party may see fit; and the Secured Party shall be
entitled to collect and receive all rents, issues, profits, fees, revenues and
other income of the same and every part thereof. Such rents, issues, profits,
fees, revenues and other income shall be applied to pay the expenses of holding
and operating the Collateral and of conducting the business thereof, and of all
maintenance, repairs, replacements, alterations, additions and improvements, and
to make all payments which the Secured Party may be required or may elect to
make, if any, for taxes, assessments, insurance and other charges upon the
Collateral or any part thereof, and all other payments which the Secured Party
may be required or authorized to make under any provision of this Agreement
(including legal costs and attorneys' fees). The remainder of such rents,
issues, profits, fees, revenues and other income shall be applied as provided in
Section 19. Without limiting the generality of the foregoing or limiting in any
way the rights of the Secured Party under applicable law, at any time after (i)
the entire principal balance of any Note shall have become due and payable
(whether at maturity, by acceleration or otherwise) and (ii) the Secured Party
shall have provided to the Borrower not less than ten (10) days prior written
notice of its intention to apply for a receiver, the Secured Party shall be
entitled to apply for and have a receiver appointed under state or federal law
by a court of competent jurisdiction in any action taken by the Secured Party to
enforce their rights and remedies hereunder in order to manage, protect,
preserve, sell and otherwise dispose of all or any portion of the Collateral and
continue the operation of the business of any Debtor, and to collect all
revenues and profits thereof and apply the same to the payment of all expenses
and other charges of such receivership, including the compensation of the
receiver, and to the payment of the Secured Obligations as aforesaid until a
sale or other disposition of such Collateral shall be finally made and
consummated. EACH DEBTOR HEREBY IRREVOCABLY CONSENTS TO AND WAIVES ANY RIGHT TO
OBJECT TO OR OTHERWISE CONTEST THE APPOINTMENT OF RECEIVER AS PROVIDED ABOVE.
EACH DEBTOR (I) GRANTS SUCH WAIVER AND CONSENT KNOWINGLY AFTER HAVING DISCUSSED
THE IMPLICATIONS THEREOF WITH COUNSEL, (II) ACKNOWLEDGES THAT (A) THE
UNCONTESTED RIGHT TO HAVE A RECEIVER APPOINTED FOR THE FOREGOING PURPOSES IS
CONSIDERED ESSENTIAL BY THE SECURED PARTY IN CONNECTION WITH THE ENFORCEMENT OF
ITS RIGHTS AND REMEDIES HEREUNDER AND UNDER THE SECURED AGREEMENTS, AND (B) THE
AVAILABILITY OF SUCH APPOINTMENT AS A REMEDY UNDER THE FOREGOING CIRCUMSTANCES
WAS A MATERIAL FACTOR IN INDUCING THE SECURED PARTY TO ENTER INTO THE GUARANTY
AND THE CONVERTIBLE DEBT AGREEMENT, AND (III) AGREES TO


                                       9
<PAGE>

ENTER INTO ANY AND ALL STIPULATIONS IN ANY LEGAL ACTIONS, OR AGREEMENTS OR OTHER
INSTRUMENTS IN CONNECTION WITH THE FOREGOING AND TO COOPERATE FULLY WITH THE
SECURED PARTY IN CONNECTION WITH THE ASSUMPTION AND EXERCISE OF CONTROL BY THE
RECEIVER OVER ALL OR ANY PORTION OF THE COLLATERAL. THE SECURED PARTY
ACKNOWLEDGES AND AGREES THAT NOTHING IN THIS SECTION 17 SHALL BE DEEMED TO
CONSTITUTE A WAIVER OF THE DEBTOR'S RIGHT TO FILE FOR PROTECTION UNDER TITLE 11
OF THE UNITED STATES CODE AT ANY TIME PRIOR TO THE APPOINTMENT OF A RECEIVER.

      18. Collection of Accounts Receivable, etc. Upon the occurrence of any
Event of Default, such default not having previously been waived, remedied or
cured, the Secured Party may notify or may require a Debtor to notify account
the Debtors, including without limitation, members and subscribers, obligated on
any or all of such Debtor's accounts receivable, whether now existing or
hereafter arising, to make payment directly to the Secured Party, and may take
possession of all proceeds of any accounts in such Debtor's possession, and may
take any other steps which the Secured Party deems necessary or advisable to
collect any or all such accounts receivable or other Collateral or proceeds
thereof.

      19. Proceeds of Collateral. After deducting all costs and expenses of
collection, storage, custody, sale or other disposition and delivery (including
legal costs and attorneys' fees) and all other charges against the Collateral of
a Debtor, the residue of the proceeds of any such sale or disposition shall be
applied to the payment of the Secured Obligations in such order of priority as
the Secured Party shall determine and any surplus shall be returned to such
Debtor or to any person or party lawfully entitled thereto (including, if
applicable, any subordinated creditors of such Debtor). By way of enlargement
and not by way of limitation of the rights of the Secured Party under applicable
law or the Secured Agreements or Collateral Documents, but notwithstanding any
provision of any Secured Agreement or Collateral Documents to the contrary, the
Secured Party shall be entitled to allocate its application of the Collateral,
and the proceeds thereof, to the Secured Obligations in such proportions and in
such order as the Secured Party, in its sole discretion, shall decide. In the
event the proceeds of any sale, lease or other disposition of the Collateral of
a Debtor hereunder are insufficient to pay all of the Secured Obligations in
full, such Debtor will be liable for the deficiency, together with interest
thereon at the Interest Rate, and the cost and expenses of collection of such
deficiency, including (to the extent permitted by law), without limitation,
reasonable attorneys' fees, expenses and disbursements.

      20. Waivers, etc. Each Debtor hereby waives presentment, demand, notice,
protest and, except as is otherwise provided herein, all other demands and
notices in connection with this Agreement or the enforcement of the Secured
Party's rights hereunder or in connection with any Secured Obligations or any of
its Collateral; consents to and waives notice of the granting of renewals,
extensions of time for payment or other indulgences to such Debtor or to any
account the Debtor in respect of any account receivable or to any other third
party, or substitution, release or surrender of any of its Collateral, the
addition or release of persons primarily or secondarily liable on any Secured
Obligation or on any account receivable or other Collateral of such Debtor, the
acceptance of partial payments on any Secured Obligation or on any account
receivable or other Collateral of such Debtor and/or the settlement or
compromise thereof. No delay or


                                       10
<PAGE>

omission on the part of the Secured Party in exercising any right hereunder
shall operate as a waiver of such right or of any other right hereunder. Any
waiver of any such right on any one occasion shall not be construed as a bar to
or waiver of any such right on any future occasion. EACH DEBTOR FURTHER WAIVES
ANY RIGHT IT MAY HAVE UNDER THE CONSTITUTION OF THE COMMONWEALTH OF
MASSACHUSETTS, UNDER THE CONSTITUTION OF ANY STATE IN WHICH ANY OF THE
COLLATERAL MAY BE LOCATED, OR UNDER THE CONSTITUTION OF THE UNITED STATES OF
AMERICA, TO NOTICE (OTHER THAN ANY REQUIREMENT OF NOTICE PROVIDED HEREIN) OR TO
A JUDICIAL HEARING PRIOR TO THE EXERCISE OF ANY RIGHT OR REMEDY PROVIDED BY THIS
AGREEMENT TO THE SECURED PARTY AND WAIVES ITS RIGHTS, IF ANY, TO SET ASIDE OR
INVALIDATE ANY SALE DULY CONSUMMATED IN ACCORDANCE WITH THE FOREGOING PROVISIONS
HEREOF ON THE GROUNDS (IF SUCH BE THE CASE) THAT THE SALE WAS CONSUMMATED
WITHOUT A PRIOR JUDICIAL HEARING. Each Debtor's waivers under this Section have
been made voluntarily, intelligently and knowingly and after such Debtor has
been apprised and counseled by its attorneys as to the nature thereof and its
possible alternative rights.

      21. Termination; Assignment, etc. This Agreement and the security interest
in the Collateral created hereby shall terminate when all of the Secured
Obligations have been paid and finally discharged in full. In such event, the
Secured Party agrees to execute appropriate releases of liens on the Collateral.
No waiver by the Secured Party or by any other holder of Secured Obligations of
any default shall be effective unless in writing nor operate as a waiver of any
other default or of the same default on a future occasion. In the event of a
sale or assignment of part or all of the Secured Obligations by any Secured
Party, each such Secured Party may assign or transfer their respective rights
and interest under this Agreement in whole or in part to the purchaser or
purchasers of such Secured Obligations, whereupon such purchaser or purchasers
shall become vested with all of the powers and rights of the Secured Party
hereunder.

      22. Reinstatement. Notwithstanding the provisions of Section 21, this
Agreement shall continue to be effective or be reinstated, as the case may be,
if at any time any amount received by the Secured Party in respect of the
Secured Obligations is rescinded or must otherwise be restored or returned by
any Secured Party upon the insolvency, bankruptcy, dissolution, liquidation or
reorganization of any Debtor or upon the appointment of any intervener or
conservator of, or trustee or similar official for, a Debtor or any substantial
part of its properties, or otherwise, all as though such payments had not been
made.

      23. Indemnification. In any suit, proceeding or action brought by the
Secured Party relating to any account receivable, chattel paper, contract,
intangible asset or instrument for any sum owning thereunder, or to enforce any
provision of any account receivable, chattel paper, contract, intangible asset
or instrument, the Debtors will save, indemnify and keep the Secured Party
harmless from and against all expense, loss or damage suffered by reason of any
defense, set-off, counterclaim, recoupment or reduction of liability whatsoever
of the obligor thereunder, arising out of a breach by any Debtor of any
obligation thereunder or arising out of any other agreement, indebtedness or
liability at any time owing to, or in favor of, such obligor or its successors
from a Debtor, and all such obligations of any Debtor shall be and remain
enforceable against and only against such Debtor and shall not be enforceable
against the Secured Party.


                                       11
<PAGE>

      24. Governmental Approval. Prior to or, where permitted, upon the exercise
by the Secured Party of any power, right, privilege or remedy pursuant to this
Agreement which requires any consent, approval, registration, qualification or
authorization of any governmental authority or instrumentality, each Debtor will
execute and deliver, or will cause the execution and delivery of, all
applications, certificates, instruments and other documents and papers that such
Debtor may be required to obtain for such governmental consent, approval,
registration, qualification or authorization.

      25. Notices. All notices, consents, approvals, elections and other
communications hereunder shall be in writing (whether or not the other
provisions of this Agreement expressly so provide) and shall be deemed to have
been duly given if delivered in accordance with the terms of the Reimbursement
Agreement.

      26. Miscellaneous. This Agreement shall inure to the benefit of and be
binding upon the Secured Party and each Debtor and their respective successors
and assigns. In case any provision in this Agreement shall be invalid, illegal
or unenforceable, the validity, legality and enforceability of the remaining
provisions shall not in any way be affected or impaired thereby. This Agreement
may be executed in any number of counterparts and by the different parties
hereto on separate counterparts, each of which shall be an original, but all of
which together shall constitute one instrument.

      27. Governing Law; Jurisdiction; Waiver of Jury Trial. This Agreement,
including the validity hereof and the rights and obligations of the parties
hereunder, shall be construed in accordance with and governed by the laws of the
Commonwealth of Massachusetts. Each Debtor, to the extent that it may lawfully
do so, hereby consents to service of process, and to be sued, in the
Commonwealth of Massachusetts and consents to the jurisdiction of the courts of
the Commonwealth of Massachusetts and the United States District Court for the
District of Massachusetts, as well as to the jurisdiction of all courts to which
an appeal may be taken from such courts, for the purpose of any suit, action or
other proceeding arising out of any of the Secured Obligations or with respect
to the transactions contemplated hereby, and expressly waives any and all
objections it may have as to venue in any such courts. Each Debtor further
agrees that a summons and complaint commencing an action or proceeding in any of
such courts shall be properly served and shall confer personal jurisdiction if
served personally or by certified mail to it at its address provided in Section
25 hereof or as otherwise provided under the laws of the Commonwealth of
Massachusetts.

      EACH DEBTOR IRREVOCABLY WAIVES ALL RIGHT TO A TRIAL BY JURY IN ANY
PROCEEDING HEREAFTER INSTITUTED BY OR AGAINST THE DEBTOR IN RESPECT OF ITS
OBLIGATIONS HEREUNDER OR THE TRANSACTIONS CONTEMPLATED HEREBY.


                                       12
<PAGE>

      IN WITNESS WHEREOF, the parties have executed this Agreement as a sealed
instrument as of the date first above written.

                                   GENZYME CORPORATION

                                   By:  /s/ Evan M. Lebson
                                      ------------------------------------------
                                      Evan Lebson
                                      Treasurer


                                   GENZYME TRANSGENICS CORPORATION

                                   By:
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   GTC CANCER VACCINES, INC.

                                   By:
                                       -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   TSI CORPORATION

                                   By:
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   GENZYME TRANSGENICS SECURITIES CORPORATION

                                   By:
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   PRIMEDICA CORPORATION (formerly TSI
                                   Holdings, Inc.)

                                   By:
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer
<PAGE>

      IN WITNESS WHEREOF, the parties have executed this Agreement as a sealed
instrument as of the date first above written.

                                   GENZYME CORPORATION

                                   By:
                                      ------------------------------------------
                                      Evan Lebson
                                      Treasurer


                                   GENZYME TRANSGENICS CORPORATION

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   GTC CANCER VACCINES, INC.

                                   By: /s/ John B. Green
                                       -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   TSI CORPORATION

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   GENZYME TRANSGENICS SECURITIES CORPORATION

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   PRIMEDICA CORPORATION (formerly TSI
                                   Holdings, Inc.)

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer
<PAGE>

                                   PRIMEDICA CAMBRIDGE, INC. (formerly
                                   BioDevelopment Laboratories, Inc.)

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   PRIMEDICA ROCKVILLE, INC. (formerly TSI
                                   Washington Laboratories, Inc.)

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   PRIMEDICA REDFIELD, INC. (formerly TSI
                                   Redfield Laboratories, Inc.)

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   PRIMEDICA WORCESTER, INC., (formerly TSI
                                   Mason Laboratories, Inc.)

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   PRIMEDICA ARGUS RESEARCH LABORATORIES, INC.
                                   (formerly Argus Research Laboratories, Inc.)

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                   TRANSGENICS INVESTMENTS, INC.

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer
<PAGE>

                                   HEALTH AND SCIENCES RESEARCH INCORPORATED

                                   By: /s/ John B. Green
                                      ------------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer
<PAGE>

      The following have become parties to this Agreement as of the date set
forth next to their respective signatures:


                                    ADDITIONAL DEBTORS


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


Dated:__________________           By:_____________________________________
                                       Name:
                                       Title:

<PAGE>

                                                                      SCHEDULE I

                             PERFECTION CERTIFICATE

                           (UCC Financing Statements)

The undersigned, the President of ________________, a ________________ (the
"Debtor"), hereby certifies, with reference to a certain Amended and Restated
Security Agreement dated as of December ___, 1998 (terms defined in such Amended
and Restated Security Agreement having the same meanings herein as specified
therein), between the Debtor and Genzyme Corporation (the "Secured Party"), to
the Secured Party as follows:

      1. Names. (a) The exact corporate name of the Debtor as that name appears
on its charter is as follows:

      Source: UCCss.9-402(7) (first sentence)

      (b) The following is a list of all other names (including trade names or
similar appellations) used by the Debtor, or any other business or organization
to which the Debtor became the successor by merger, consolidation, acquisition,
change in form, nature or jurisdiction of organization or otherwise, now or at
any time during the past five years:

      Source: UCCss.9-402(7) (second and third sentences)

      (c) The following is the Debtor's federal employer identification number:

      2. Current Locations. (a) The chief executive office of the Debtor is
located at the following address:

      Source: UCCss.ss.9-103(3), 9-103(4), 9-401(6)

      (b) The following are all other locations in the United States of America
in which the Debtor maintains and books or records relating to any of the
Collateral consisting of accounts, contract rights, chattel paper, general
intangibles or mobile goods:

      Source: UCCss.ss.9-103(3), 9-103(4), 9-401(6)

<PAGE>

      (c) The following are all other places of business of the Debtor in the
United States of America:

      Source: UCCss.9-401(1) (Third Alternative)

      (d) The following are all other locations in the United States of America
where any of the Collateral consisting of Inventory or equipment is located:

      Source: UCCss.9-103(1)

      (e) The following are the names and addresses of all persons or entities
other than the Debtor, such as lessees, consignees, warehousemen or purchasers
of chattel paper, which have possession or are intended to have possession of
any of the Collateral consisting of chattel paper, inventory or equipment:

      Source: UCCss.ss.9-103(1), 9-103(4), 9-304(2) and 9-304(3); see also
              UCCss.ss. 2-326(3), 9-114, 9-305, 9-308 and 9-408

      (f) The following are the names and addresses of all persons or entities
which hold leases or other ownership interest in personal property held and used
by the Debtor, such as lessors, consignors or conditional sales vendors with
purchase money liens on Collateral consisting of chattel paper, inventory or
equipment:

      Source: UCC 9-312,

      3. Prior Locations. (a) Set forth below is the information required by
subparagraphs (a), (b) and (c) of ss.2 with respect to each location or place of
business previously maintained by the Debtor at any time during the past five
years in a state in which the Debtor has previously maintained a location or
place of business at any time during the past four months:

      Source: UCCss.ss.9-103(3)(e) and 9-401(3)

      (b) Set forth below is information required by subparagraphs (d) and (e)
of ss.2 with respect to each other location at which, or other person or entity
with which, any of the Collateral consisting of inventory or equipment has been
previously held at any time during the past four months:

      Source: UCCss.ss.9-103(1)(d) and 9-401(3)

<PAGE>

      IN WITNESS WHEREOF, we have hereunto signed this Certificate on December
___, 1998

                                    [INSERT NAME OF THE DEBTOR]


                                    By:_______________________________________
                                       Name:
                                       Title:

<PAGE>

                                                                     SCHEDULE II

                                  PLEDGED STOCK
<TABLE>
<CAPTION>
             Issuer               No. of Shares    Certificate                  Holder
             ------               -------------    -----------                  ------
                                                     Number
                                                     ------
<S>                                   <C>            <C>         <C>
GTC Cancer Vaccines, Inc.              100              1        Genzyme Transgenics Corporation

Genzyme Transgenics Securities         100              1        Genzyme Transgenics Corporation
Corporation

SMI Genzyme Ltd.                      1,000          1A-0003     Genzyme Transgenics Corporation
                                       100           2C-0005     Genzyme Transgenics Corporation
                                       100           2C-0006     Genzyme Transgenics Corporation
                                       100           2C-0007     Genzyme Transgenics Corporation
                                       100           2C-0008     Genzyme Transgenics Corporation
                                       500           4B-0001     Genzyme Transgenics Corporation
                                        50           4D-0002     Genzyme Transgenics Corporation
                                        10           4E-0009     Genzyme Transgenics Corporation
                                        10           4E-0010     Genzyme Transgenics Corporation
                                        5            4F-0002     Genzyme Transgenics Corporation
                                        1            4G-0005     Genzyme Transgenics Corporation
                                        1            4G-0006     Genzyme Transgenics Corporation
                                        1            4G-0007     Genzyme Transgenics Corporation
                                        1            4G-0008     Genzyme Transgenics Corporation
                                       100           5C-0001     Genzyme Transgenics Corporation
                                       100           5C-0002     Genzyme Transgenics Corporation
                                       100           5C-0003     Genzyme Transgenics Corporation
                                       100           5C-0004     Genzyme Transgenics Corporation
                                        1            6G-0001     Genzyme Transgenics Corporation
                                        1            6G-0002     Genzyme Transgenics Corporation
                                        1            6G-0003     Genzyme Transgenics Corporation
                                        1            6G-0004     Genzyme Transgenics Corporation
                                        5            6F-0002     Genzyme Transgenics Corporation
                                        10           6E-0007     Genzyme Transgenics Corporation
                                        10           6E-0009     Genzyme Transgenics Corporation
                                        10           6E-0008     Genzyme Transgenics Corporation
                                        50           6D-0001     Genzyme Transgenics Corporation
                                       100           6C-0002     Genzyme Transgenics Corporation
                                       100           6C-0004     Genzyme Transgenics Corporation
                                       100           6C-0003     Genzyme Transgenics Corporation

TSI Corporation                        100              1        Genzyme Transgenics Corporation
                                       100              2        Genzyme Transgenics Corporation
</TABLE>

<PAGE>

<TABLE>
<S>                                   <C>              <C>       <C>
Health and Sciences Research          1,500             8        TSI Corporation (formerly
Corporation                                                      Transgenic Sciences, Inc.)

<CAPTION>
             Issuer               No. of Shares    Certificate                  Holder
             ------               -------------    -----------                  ------
                                                     Number
                                                     ------
<S>                                 <C>                <C>       <C>
Primedica Corporation                 3,000             1        TSI Corporation (formerly
   (formerly TSI Holdings, Inc.)                                 Transgenic Sciences, Inc.)
                                      2,100             2        TSI Corporation (formerly
                                                                 Transgenic Sciences, Inc.)

Transgenic Investments, Inc.          1,000            C-1       TSI Corporation (formerly
                                                                 Transgenic Sciences, Inc.)

Primedica Argus Research               260              2        Primedica Corporation
Laboratories, Inc.                    1,000             3           (formerly TSI Holdings, Inc.)
   (formerly Argus Research
Laboratories, Inc).

Primedica Cambridge, Inc.              100             102       Primedica Corporation
   (formerly BioDevelopment                                         (formerly TSI Holdings, Inc.)
Laboratories, Inc.)

Primedica Worcester, Inc.           4,500,000          C-2       Primedica Corporation
   (formerly TSI Mason                                              (formerly TSI Holdings, Inc.)
Laboratories, Inc. and GTC
Mason Laboratories and Mason
Laboratories, Inc.)

Primedica Redfield, Inc.              1,000             2        Primedica Corporation
   (formerly TSI Redfield                                           (formerly TSI Holdings, Inc.)
Laboratories, Inc. and Redfield
Laboratories, Inc.)

Primedica Rockville, Inc.             1,000             3        Primedica Corporation
   (formerly TSI Washington,                                        (formerly TSI Holdings, Inc.)
Inc. and Washington
Laboratories, Inc.)
</TABLE>

<PAGE>

                                                                 Exhibit 10.28.5

                     HAZARDOUS MATERIALS INDEMNITY AGREEMENT

      THIS INDEMNITY AGREEMENT (the "Agreement") is entered into as of the 28th
day of December, 1998, by the undersigned (hereinafter referred to collectively
as the "Indemnitors"), in favor of Genzyme Corporation (the "Mortgagee") with
its main office at One Kendall Square, Cambridge, Massachusetts 02139.

      Reference is made to the following facts:

      A. The Indemnitors have entered into an Amended and Restated Reimbursement
Agreement dated as of the date hereof (as amended from time to time, the
"Reimbursement Agreement") pursuant to which the Mortgagee agreed, subject to
the terms and conditions set forth therein, to certain financial accommodations
to Genzyme Transgenics Corporation (the "Accommodations").

      B. As a condition to making the Accommodations, Mortgagee requires that
Indemnitors agree to indemnify and hold harmless Mortgagee from any
Environmental Claim, any Requirements of Environmental Law, and any violation of
any Environmental Permit, and all Costs (as the foregoing terms are defined in
Exhibit A hereto), in each case, relating to the Premises (as hereinafter
defined). Mortgagee would not make the Accommodations without this Agreement and
Indemnitors acknowledge and understand that this Agreement is a material
inducement for Mortgagee's agreement to make the Accommodations.

      C. One of the Indemnitors is the owner of each of the parcels described as
"Owned Properties" on the attached Exhibit B and is the tenant under certain
leases (the "Leases") listed on Exhibit B, which leases relate to occupancy of
certain real property described as "Leased Properties" on Exhibit B. The Owned
Properties and the Leased Properties are individually and collectively referred
to as the "Premises". The other Indemnitors are affiliates of such owners and
tenants.

      NOW, THEREFORE, in consideration of the Mortgagee's agreement to make the
Accommodations and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, Indemnitors hereby covenant and
agree as follows:

      1. Hazardous Materials; Compliance with Requirements of Environmental Law.

            a. The Indemnitors represent and warrant that they have never
generated, stored (other than the lawful storage of heating oil in amounts
required for the heating of buildings located on the Premises, or other than the
handling of Hazardous Materials in the Indemnitors' ordinary course of business
in compliance with the Requirements of Environmental Law), or disposed of any
Hazardous Materials on the Premises or any other property owned, occupied or
operated by the Indemnitors or any person for whose conduct the Indemnitors are
responsible, that, except as previously disclosed in writing to the Mortgagee,
the Indemnitors are not aware of the generation, storage, disposal or release of
Hazardous Materials on the Premises by anyone else, and that the Indemnitors are
not aware of the generation, storage, disposal or release of Hazardous Materials
upon or into the real property adjoining or in the vicinity of the Premises
which through soil or ground water migration could have come to be located at
the Premises. The Indemnitors further represent and warrant that, except as
previously disclosed in
<PAGE>

writing to the Mortgagee, there are no existing or closed underground storage
tanks on the Premises. The Indemnitors agree not to release or dispose of any
Hazardous Materials at the Premises, nor to permit same, at any time.

            b. The Indemnitors represent and warrant that the Premises complies
and that the Premises and the Indemnitors shall comply with all Requirements of
Environmental Law. The Indemnitors covenant to immediately notify the Mortgagee
of the presence, release or threat of release of any Hazardous Materials at or
from the Premises or any other property owned, occupied or operated by the
Indemnitors or any person for whose conduct the Indemnitors are responsible or
of any notice or claim received by it of any violation of any Requirements of
Environmental Law.

            c. The Mortgagee may (but shall not be obligated to), from time to
time, for reasonable cause, and at the Indemnitors' expense, conduct such
investigations as the Mortgagee deems reasonable to determine whether Hazardous
Materials exist on any part of the Premises and to determine the source,
quantity and type of such Hazardous Materials, if any, and the Indemnitors shall
cooperate with the Mortgagee in conducting such investigations. Such
investigations may include without limitation a detailed visual inspection of
the Premises, including all storage areas, storage tanks, drains and dry wells,
as well as the taking of soil samples, surface water samples, and ground water
samples and such other investigations or analyses as are necessary or
appropriate in the Mortgagee's sole discretion for a complete assessment of the
compliance of the Premises and the use and operation thereof with all
Requirements of Environmental Law. The Mortgagee and its officers, employees,
agents and contractors shall have and are hereby granted the right to enter upon
the Premises for the foregoing purposes, provided that the Mortgagee shall use
reasonable efforts to minimize the disruption to the operation of the
Indemnitors' business on the Premises.

            d. Without limiting the generality of this Section, the Indemnitors,
and the Premises and all alterations thereof, shall comply with all local, state
and federal laws and regulations now or hereafter in effect and applicable
relating to the presence, abatement, removal, disposal, transportation or
treatment of materials containing asbestos.

            e. Without limiting the generality of this Section, if any portion
of the Premises is to be used for residential purposes, the Premises and all
alterations thereof shall comply with all local, state and federal laws and
regulations now or hereafter in effect and applicable relating to the presence,
abatement, removal, disposal, transportation or treatment of materials
containing lead paint.

      2. Indemnification.

            a. Indemnitors shall protect, defend, indemnify, and hold harmless
Mortgagee, its officers, directors, shareholders, agents, employees, parents,
subsidiaries and affiliates and their respective heirs, legal representatives,
successors and assigns (Mortgagee and all such other persons and entities being
referred to herein individually as an "Indemnitee" and collectively as
"Indemnitees") from and against all Costs which at any time may be imposed upon
the Premises, the Indemnitees, or any of them, arising out of or in connection
with (i) Requirements of Environmental Law; (ii) Environmental Claims; (iii) the
failure of Indemnitors,


                                       2
<PAGE>

or any other party directly or indirectly connected with the Premises, or
affiliated with Indemnitors having any control over or responsibility for the
use and operation of the Premises, to obtain, maintain, or comply with any
Environmental Permit; and/or (iv) the presence, existence or threat of release
of Hazardous Materials (as defined in Exhibit A hereto) at, on, about, under,
within or in connection with the Premises.

            b. In the event that any Remedial Work (as defined in Exhibit A
hereto) is necessary under any applicable local, state or federal law or
regulation, any judicial order, or by any governmental or non-governmental
entity or person because of, or in connection with, the current or future
presence, suspected presence, release or suspected release or threat of release
of Hazardous Materials in or into the air, soil, ground water, surface water or
soil vapor at, on, about, under, within, near, from or in connection with the
Premises (or any portion thereof), Indemnitors shall promptly commence, or cause
to be commenced, and thereafter diligently prosecute to completion, all such
Remedial Work. All Remedial Work shall be performed by licensed contractors
qualified to perform such work under applicable federal, state and local law.
All Costs related to such Remedial Work shall be paid by Indemnitors including,
without limitation, reasonable Costs incurred by any Indemnitee in connection
with the monitoring or review of such Remedial Work by the Indemnitee or a third
party engaged by Indemnitee. In the event Indemnitors shall fail to promptly
commence, or cause to be commenced, or fail to diligently prosecute to
completion, such Remedial Work, Mortgagee may, but shall not be required to,
cause such Remedial Work to be performed and all Costs shall become an
Environmental Claim hereunder.

            c. This Agreement, and all rights and obligations hereunder shall
survive (i) repayment of the Accommodations; (ii) satisfaction, assignment or
reconveyance of the Mortgages by which the Premises secure the Indemnitor's
obligations under the Reimbursement Agreement (collectively, the "Mortgages"),
and release of other security provided in connection with the Accommodations;
(iii) foreclosure of the Mortgages and other security instruments in connection
with the Accommodations; (iv) acquisition of the Premises by Mortgagee by
deed-in-lieu of foreclosure or otherwise; (v) sale, assignment or transfer of
all or any portion of Mortgagee's rights in the Accommodations and the Premises
and (vi) termination of any of the Leases.

            d. Nothing contained in this Agreement shall prevent or in any way
diminish or interfere with any rights or remedies, including, without
limitation, the right to contribution, which any Indemnitee may have against
Indemnitors or any other party under the Comprehensive Environmental Response,
Compensation and Liability Act of 1980 (codified at Title 42 U.S.C. ss. 9601 et
seq.), as it may be amended from time to time, or any other applicable federal,
state or local laws, all such rights being hereby expressly reserved.

      3. Notice of Actions.

            a. Indemnitors shall give immediate written notice to Mortgagee of:
(i) its use, manufacture, production, handling or storage of any type of
Hazardous Material at the Premises, not previously disclosed to Mortgagee, or
any substantial increase in the quantity or magnitude of the use, manufacturing,
production, handling or storage of any type of Hazardous Material at the
Premises above levels previously disclosed to Mortgagee; (ii) any proceeding,


                                       3
<PAGE>

inquiry, notice, or other communication to it or of which it has knowledge, or
with the exercise of due diligence, should have had knowledge by or from any
governmental or non-governmental entity regarding the presence or suspected
presence of any Hazardous Material at, on, about, under, within or in connection
with the Premises or any migration thereof from or to the Premises; (iii) any
actual or alleged violation of any Requirements of Environmental Law; (iv) all
Environmental Claims; (v) the discovery of any occurrence or condition on any
real property adjoining or in the vicinity of the Premises that could cause the
Premises or any part thereof to be subject to any restrictions on ownership,
occupancy, transferability, or use, or subject the owner or any person having
any interest in the Premises to any liability, penalty, or disability under any
Requirements of Environmental Law; and (vi) the receipt of any notice or
discovery of any information regarding any actual, alleged, or potential
spillage, seepage, release, discharge, disposal or any other presence or
existence of any Hazardous Material at, on, about, under, within, near or in
connection with the Premises.

            b. Immediately upon receipt of the same, Indemnitors shall deliver
to Mortgagee copies of any and all Environmental Claims, and any and all orders,
notices, permits, applications, reports, and other communications, documents,
and instruments pertaining to the actual, alleged, or potential presence or
existence of any Hazardous Material at, on, about, under, within, near or in
connection with the Premises.

      4. Procedures Relating to Indemnification.

            a. In any circumstance in which this Agreement applies, Mortgagee
may, but shall not be obligated to, employ its own legal counsel and consultants
to investigate, prosecute, negotiate, or defend any such Environmental Claim and
in the event liability is asserted directly against Mortgagee, Mortgagee shall
have the right to compromise or settle such claim of liability against Mortgagee
without the consent of Indemnitors. Indemnitors shall reimburse Mortgagee,
within fifteen (15) days of demand, for all Costs incurred by Mortgagee,
including the amount of all Costs of settlements entered into by Mortgagee.

            b. Indemnitors shall not, without the prior written consent of
Mortgagee (i) settle or compromise any action, suit, proceeding, or claim or
consent to the entry of any judgment that does not include as an unconditional
term thereof the delivery by the claimant or plaintiff to Mortgagee of (x) a
full and complete written release of Mortgagee (in form, scope and substance
satisfactory to Mortgagee in its reasonable discretion) from all liability in
respect of such action, suit or proceeding and (y) a dismissal with prejudice of
such suit, action or proceeding; or (ii) settle or compromise any action, suit,
proceeding, or claim in any manner that may adversely affect Mortgagee as
determined by Mortgagee in its reasonable discretion.

      5. Binding Effect. This Agreement shall be binding upon the Indemnitors,
their successors and permitted assigns and shall inure to the benefit of the
Indemnitee and its successors and assigns, including as to Mortgagee, without
limitation, any affiliate of Mortgagee which acquires all or part of the
Premises by any sale, assignment, deed in lieu of foreclosure, foreclosure under
the Mortgages, or otherwise. The obligations of Indemnitors under this Agreement
shall not be assigned without the prior written consent of Mortgagee, which
consent may be given or withheld in the sole discretion of Mortgagee.


                                       4
<PAGE>

      6. Liability of Indemnitors. The liability of each party comprising the
Indemnitors shall be joint and several. The liability of Indemnitors under this
Agreement shall in no way be limited or impaired by the provisions of the
Mortgages or any of the other Accommodations Documents, or any amendment,
modification, extension or renewal thereof. No delay on the Mortgagee's part in
acting under this Indemnity shall operate as a waiver of any of the Mortgagee's
rights hereunder. No waiver hereunder by the Mortgagee in any instance shall
constitute a waiver in any other instance.

      7. Waiver. Indemnitors waive any right or claim of right to cause a
marshalling of the assets of Indemnitors or to cause Mortgagee to proceed
against any of the security for the Accommodations before proceeding under this
Agreement against Indemnitors; Indemnitors agree that any payments required to
be made hereunder shall become due on demand; to the extent permitted by
applicable law, Indemnitors expressly agree that the liability of the
Indemnitors hereunder shall in no way be affected by: (a) the release or
discharge of any Indemnitor in any creditors', receivership, bankruptcy or other
proceedings; (b) the impairment, limitation or modification of the liability of
any Indemnitor or the estate of the Indemnitor in bankruptcy, or of any remedy
for the enforcement of any Indemnitor's liability under the Accommodations
Documents, resulting from the operation of any present or future provision of
the Bankruptcy Code, 11 U.S.C. ss. 101 et seq. or other similar statute or from
the decision in any court; (c) the rejection or disaffirmance of the
Accommodations Documents in any such proceedings; (d) the assignment or transfer
of the Accommodations Documents by the Indemnitors; (e) any disability or other
defense of any Indemnitor; or (f) the cessation from any cause whatsoever for
the liability of any Indemnitor. Without limiting the generality of the
foregoing, the Indemnitors hereby waive all suretyship defenses or defenses in
the nature thereof.

      8. Notices. All notices, consents, approvals, elections and other
communications (collectively "Notices") hereunder shall be in writing (whether
or not the other provisions of this Agreement expressly so provide) and shall be
deemed to have been duly given if delivered in accordance with the terms of the
Reimbursement Agreement.

      9. Attorneys' Fees. In the event that any Indemnitee brings or otherwise
becomes a party to any suit or other proceeding (including, without limitation,
any administrative proceedings, but excluding any suit brought by any Indemnitee
which is ruled to be frivolous or brought in bad faith) with respect to the
subject matter or enforcement of this Agreement, such Indemnitee shall, in
addition to such other relief as may be awarded, be entitled to recover from
Indemnitors attorneys' fees, expenses and costs of investigation as are actually
incurred (including, without limitation, reasonable attorneys' fees, expenses
and costs of investigation incurred in appellate proceedings, costs incurred in
establishing the right to indemnification, or in any action or participation in,
or in connection with, any case or proceeding under Chapter 7, 11 or 13 of the
Bankruptcy Code, 11 U.S.C.ss.101 et seq., or any successor statutes).

      10. Governing Law. This Agreement and the rights and obligations of the
parties hereunder shall in all respects be governed by, and construed and
enforced in accordance with, the laws of the Commonwealth of Massachusetts
("State"). Indemnitors hereby irrevocably submit to the non-exclusive
jurisdiction of any State or federal court sitting in Boston, Massachusetts over
any suit, action or proceeding arising out of or relating to this Agreement, and
Indemnitors hereby agree and consent that, in addition to any other methods of
service of


                                       5
<PAGE>

process in any such suit, action or proceeding in any State or federal court
sitting in Boston, Massachusetts, service of process may be made by certified or
registered mail, return receipt requested, directed to Indemnitors at the
address indicated in Section 7 hereof, and service so made shall be complete one
(1) day after the same shall have been so mailed.

      11. Successive Actions. A separate right of action hereunder shall arise
each time Mortgagee acquires knowledge of any matter indemnified by Indemnitors
under this Agreement. Separate and successive actions may be brought hereunder
to enforce any of the provisions hereof at any time and from time to time. No
action hereunder shall preclude any subsequent action, and Indemnitors hereby
waive and covenant not to assert any defense in the nature of splitting of
causes of action or merger of judgments.

      12. Partial Invalidity. If any provision of this Agreement shall be
determined to be unenforceable in any circumstances by a court of competent
jurisdiction, then the balance of this Agreement shall be enforceable
nonetheless, and the subject provision shall be enforceable in all other
circumstances.

      13. Interest on Unpaid Amounts. All amounts required to be paid or
reimbursed to any Indemnitee hereunder shall bear interest from the date of
expenditure by such Indemnitee or the date of written demand to Indemnitors
hereunder, whichever is later, until paid to Indemnitee(s). The interest rate
shall be the lesser of (a) eighteen percent (18%) per annum or (b) the maximum
rate then permitted for the parties to contract for under applicable law.

      14. Authority. Each individual signing this Indemnity Agreement on behalf
of the Indemnitors or any other indemnitor which is not a natural person
warrants and represents to the Mortgagee that he or she is authorized to do so
by all requisite action of the Indemnitors or such other entity.

      15. Exhibits. All exhibits attached hereto are incorporated by reference.


                                       6
<PAGE>

      IN WITNESS WHEREOF, Indemnitors have executed this Agreement as of the
date first set forth above.

                                  GENZYME TRANSGENICS CORPORATION


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  GTC CANCER VACCINES, INC.


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  TSI CORPORATION


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  GENZYME TRANSGENICS SECURITIES CORPORATION


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  PRIMEDICA CORPORATION (formerly TSI
                                  Holdings, Inc.)


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  PRIMEDICA CAMBRIDGE, INC. (formerly
                                  BioDevelopment Laboratories, Inc.)


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer

<PAGE>

                                  PRIMEDICA ROCKVILLE, INC. (formerly TSI
                                  Washington Laboratories, Inc.)


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  PRIMEDICA REDFIELD, INC. (formerly TSI
                                  Redfield Laboratories, Inc.)


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  PRIMEDICA WORCESTER, INC., (formerly TSI Mason
                                  Laboratories, Inc.)


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  PRIMEDICA ARGUS RESEARCH LABORATORIES, INC.
                                  (formerly Argus Research Laboratories, Inc.)


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


                                  TRANSGENICS INVESTMENTS, INC.


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer

<PAGE>

                                  HEALTH SCIENCES RESEARCH INCORPORATED


                                  By: /s/ John B. Green
                                     -------------------------------------------
                                     John B. Green
                                     Vice President and Chief Financial Officer


<PAGE>

Exhibits:   A - Definitions
            B - Premises Description:     Owned Properties
                          Leased Properties
                          Leases

<PAGE>


                          COMMONWEALTH OF MASSACHUSETTS
County of Suffolk, ss:                                         December __, 1998

      Then personally appeared the above named John B. Green, as Vice President
of each of the corporations set out above, and acknowledged the foregoing
instrument to be his free act and deed as Vice President of said corporations,
before me,


                              ------------------------------------
                              Notary Public
                              My commission expires:


<PAGE>

                                    EXHIBIT A

                                   DEFINITIONS

      Definitions. For purposes of this Agreement, the following terms shall
have the following meanings:

      (a) "Costs" shall mean all liabilities, losses, costs, damages, (including
consequential damages), expenses, claims, attorneys' fees, experts' fees,
consultants' fees and disbursements of any kind or of any nature whatsoever. For
the purposes of this definition, such losses, costs and damages shall include,
without limitation, remedial, removal, response, abatement, restoration,
cleanup, legal, investigative and monitoring costs and related costs, expenses,
losses, damages, penalties, fines, obligations, defenses, judgments, suits,
proceedings and disbursements. Costs shall also include, without limitation, (i)
the costs of removal, transportation and disposal of any and all Hazardous
Materials from all or any portion of the Premises, (ii) costs required to take
necessary precautions to protect against the release of Hazardous Materials at,
on, in, about, under, within, near or in connection with the Premises in or into
the air, soil, surface water, ground water, or soil vapor, any public domain, or
any surrounding areas, and (iii) costs incurred to comply, in connection with
all or any portion of the Premises, with all applicable laws with respect to
Hazardous Materials, including any such laws applicable to the work referred to
in this sentence.

      (b) "Environmental Claim" shall include, but not be limited to, any claim,
demand, action, cause of action, suit, loss, cost, damage, fine, penalty,
expense, liability, judgment, proceeding, or injury, whether threatened, sought,
brought, or imposed, that seeks to impose costs or liabilities for the
following, occurring at, on, about under, within, near, from, or in connection
with the Premises: (i) noise; (ii) pollution or contamination of the air,
surface water, ground water, or soil; (iii) solid, gaseous, or liquid waste
generation, handling, treatment, storage, disposal, or transportation; (iv)
exposure to Hazardous Materials; (v) the manufacture, processing, distribution
in commerce, use, or storage of Hazardous Materials; (vi) injury to or death of
any person or persons arising out of the discharge, release, storage, handling,
presence, or transport of Hazardous Materials; (viii) any and all penalties
arising out of the discharge, release, storage, handling, presence, or transport
of Hazardous Materials, (ix) any assertion of breach or violation of any
Requirements of Environmental Law, or any event, occurrence, or condition
relating to the Premises as a consequence of which (A) Indemnitors, Mortgagee,
or any owner, occupant, or person having any interest in the Premises shall be
liable, or (B) the Premises shall be subject to any restriction on use,
ownership, transferability, or (iii) any Remedial Work shall be required.

      (c) "Environmental Permit" means any permit, license, approval, or other
authorization with respect to any activities, operations, or businesses
conducted on or in relation to the Premises under any applicable law,
regulation, or other requirement of the United States or any state,
municipality, or other subdivision or jurisdiction related to pollution or
protection of health or the environment, or any private agreement (such as
covenants, conditions and restrictions), including laws, regulations or other
requirements relating to emissions, discharges, or releases or threatened
releases of Hazardous Materials into ambient air, surface water, ground water,
or soil, or otherwise relating to the manufacture, processing, distribution,
use, generation,

<PAGE>

treatment, storage, disposal, transportation, or handling of Hazardous Materials
at, on, about, under, within, near, or from the Premises.

      (d) "Hazardous Materials" shall include the following:

            (i) Those substances included within the definitions of "hazardous
substances," "hazardous materials," "toxic substances," or "solid waste" in the
Comprehensive Environmental Response Compensation and Liability Act of 1980 (42
U.S.C.ss. 9601 et seq.) ("CERCLA"), as amended by Superfund Amendments and
Reauthorization Act of 1986 (Pub. L. 99-499 100 Stat. 1613) ("SARA"), the
Resource Conservation and Recovery Act of 1976 (42 U.S.C.ss. 6901 et seq.)
("RCRA"), the Toxic Substance Control Act of 1976 ("TSCA"), and the Hazardous
Materials Transportation Act, 49 U.S.C.ss.1801 et seq., and in the regulations
promulgated pursuant to said laws, all as amended;

            (ii) Those substances listed in the United States Department of
Transportation Table (49 CFR 172.101 and amendments thereto) or by the
Environmental Protection Agency (or any successor agency) as hazardous
substances (40 CFR Part 302 and amendments thereto);

            (iii) Any material, waste or substance which is (A) petroleum, (B)
asbestos, (C) polychlorinated biphenyls, (D) designated as a "hazardous
substance" pursuant to Section 311 of the Clean Water Act, 33 U.S.C.ss. 1251 et
seq. (33 U.S.C.ss. 1321) or listed pursuant to Section 307 of the Clean Water
Act (33 U.S.C.ss. 1317); (E) flammable explosives; or (F) radioactive materials;

            (iv) Asbestos;

            (v) Lead paint; and

            (vi) Such other substances, materials and wastes which are or become
regulated as hazardous or toxic under applicable local, state or federal law, or
the United States government, or which are classified as hazardous or toxic
under federal, state, or local laws or regulations.

      (e) "Remedial Work" shall mean any investigation, site monitoring,
containment, clean-up, removal, transportation, disposal, restoration,
reporting, or sampling with respect to Hazardous Materials or soil, water,
tanks, drums or other materials which contain or contained Hazardous Materials.

      (f) "Requirements of Environmental Law" means all requirements of
environmental or ecological laws or regulations or controls which are applicable
to the Premises or the activities conducted thereon, including all requirements
imposed by any law, rule, order, or regulations of any federal, state, or local
executive, legislative, judicial, regulatory, or administrative agency, board,
or authority, or any private agreement (such as covenants, conditions and
restrictions), which relate to (i) noise; (ii) pollution or protection of the
air, surface water, ground water, or soil; (iii) solid, gaseous, or liquid waste
generation, treatment, storage, disposal, or transportation; (iv) exposure to
Hazardous Materials; or (v) regulation of the manufacture, processing,
distribution and commerce, use, or storage of Hazardous Materials.

<PAGE>


                                    EXHIBIT B

                              PREMISES DESCRIPTION

Owned Properties:

1.

Leased Properties and Leases:

<PAGE>

                                                                 Exhibit 10.32.2

                   FIRST AMENDMENT TO INTERCREDITOR AGREEMENT

      This FIRST AMENDMENT TO INTERCREDITOR AGREEMENT dated as of December 28,
1998 (this "Amendment") is among Genzyme Corporation (the "Senior Creditor"), a
Massachusetts corporation; Genzyme Transgenics Corporation ("GTC"), a
Massachusetts corporation; the Subsidiaries of GTC listed on the signature pages
hereto (each of GTC and such Subsidiaries, a "Borrower" and collectively such
Subsidiaries with GTC, the "Borrowers"); and FINOVA Technology Finance, Inc.
(formerly known as Financing for Science International, Inc., the "Subordinating
Creditor"), a Delaware corporation.

      WHEREAS, the parties previously entered into an Intercreditor Agreement
dated as of July 3, 1995 (the "Original Intercreditor Agreement") providing for
certain subordination of the rights of the Subordinating Creditor pursuant to
the Original Intercreditor Agreement to the rights of Genzyme pursuant to the
Reimbursement Agreement dated as of July 3, 1995 among the Senior Creditor, the
Borrowers, and the Subordinated Creditor; and

      WHEREAS, GTC is entering into a new Credit Agreement dated as of the date
hereof with Fleet National Bank ("Fleet") to refinance the indebtedness under
its agreements with BankBoston, N.A. (formerly The First National Bank of
Boston); and

      WHEREAS, the parties wish to amend the Original Intercreditor Agreement to
reflect amendments to the documents constituting Senior Debt;

NOW, THEREFORE, in consideration of the foregoing and the agreements contained
herein, the parties hereby agree as follows. Terms used herein and not otherwise
defined shall have the meanings assigned to them in the Original Intercreditor
Agreement.

      1. Amendment to the Original Intercreditor Agreement. The Original
Intercreditor Agreement is amended as follows:

      (a) Amendment to Recitals. Each of the recitals is hereby deleted in its
entirety and replaced by the following:

            WHEREAS, pursuant to a Credit Agreement dated as of December ___,
      1998 (as amended and in effect from time to time, the "GTC Credit
      Agreement"), Fleet National Bank (the "Bank") agreed, upon the terms and
      subject to the conditions contained therein, to make loans to GTC; and

            WHEREAS, pursuant to a Master Equipment Lease Agreement (together
      with rental schedules thereto, the "Lease Agreement"), certain Sale and
      Leaseback Agreements (collectively, together with the Lease Agreement, the
      "FSI Lease Agreements") and a Security Agreement (the "Subordinated
      Agreement"), each dated September 27, 1994 between the Subordinating
      Creditor and TSI, the Subordinating Creditor leased certain equipment
      listed in Exhibit A hereto (as defined in the FSI Lease Agreement, the
      "Equipment") to TSI; and

<PAGE>

            WHEREAS, certain subsidiaries of TSI, namely Primedica Argus
      Research Laboratories, Inc., Primedica Worcester, Inc., Primedica
      Redfield, Inc., Primedica Rockville, Inc., and Health and Sciences
      Research Incorporated (collectively, the "Significant Subsidiaries"), each
      entered into a Guaranty of Lease (a "Subsidiary Guaranty") dated as of
      September 27, 1994 providing for the guarantee by such Significant
      Subsidiaries of the obligations of TSI to the Subordinating Creditor under
      the FSI Lease Agreement and the Subordinated Agreement; and

            WHEREAS, GTC entered into a Subsidiary Guaranty dated December 26,
      1996 providing for the guarantee by GTC of the obligations of TSI to the
      Subordinating Creditor under the Subordinating Creditor Lease Agreements
      and the Subordinated Agreement; and

            WHEREAS, GTC and certain of the Significant Subsidiaries, namely
      Primedica Argus Research Laboratories, Inc., Primedica Worcester, Inc. and
      Primedica Rockville, Inc., each entered into an additional Guaranty of
      Lease dated June 30, 1995 (each also a "Subsidiary Guaranty") providing
      for the guarantee by such Significant Subsidiaries of the obligations of
      TSI to the Subordinating Creditor under rental schedules pursuant to the
      Lease Agreement; and

            WHEREAS, GTC, TSI and the Subordinating Creditor previously entered
      into a Subordination Agreement dated as of September 27, 1994 providing
      for certain subordination of the rights of FSI pursuant to the
      Subordinated Agreement to the rights of a prior lender to GTC (the
      "Original Subordination Agreement"); and

            WHEREAS, the Obligations (as defined in the GTC Credit Agreement) of
      GTC shall be guarantied pursuant to that certain Guaranty dated as of the
      date hereof by the Senior Creditor in favor of the Bank (the "Guaranty");
      and

            WHEREAS, the reimbursement obligations of GTC pursuant to the
      Guaranty are described in the Amended and Restated Reimbursement Agreement
      dated as of the date hereof (the "Amended and Restated Reimbursement
      Agreement") among the Senior Creditor and the Borrowers; and

            WHEREAS, to secure the obligation of GTC and its subsidiaries to
      reimburse the Senior Creditor for any payments under the Guaranty and the
      Amended and Restated Reimbursement Agreement, GTC and its subsidiaries
      have entered into an Amended and Restated Security Agreement dated as of
      the date hereof in favor of the Senior Creditor and GTC has also entered
      into a Mortgage and Security Agreement in favor of the Senior Creditor, as
      amended (the "GTC Security Agreements"); and

            WHEREAS, it is a condition precedent to the Senior Creditor's
      willingness to provide the Guaranty that GTC, its subsidiaries and the
      Subordinating Creditor enter into this Agreement with the Senior Creditor;

      (b) Amendment to Definition of Senior Debt. The definition of "Senior
Debt" in Section 1 is hereby deleted in its entirety and replaced by the
following:


                                       2
<PAGE>

            Senior Debt. All principal, interest, fees, costs, enforcement
      expenses (including legal fees and disbursements), collateral protection
      expenses and other reimbursement or indemnity obligations created or
      arising under the Guaranty, the Amended and Restated Reimbursement
      Agreement, the GTC Security Agreements or any of the other documents
      related thereto as the foregoing may be amended from time to time or any
      prior, concurrent, or subsequent notes, instruments or agreements of
      indebtedness, liabilities or obligations of any type or form whatsoever
      relating thereto in favor of the Senior Creditor. Senior Debt shall
      expressly include any and all interest accruing or out-of-pocket costs or
      expenses incurred after the date of any filing by or against any Borrower
      or Borrowers of any petition under the federal Bankruptcy Code or any
      other bankruptcy, insolvency, or reorganization act regardless of whether
      the Senior Creditor's claim(s) therefor is allowed or allowable in the
      case or proceeding relating thereto.

      2. Miscellaneous.

      (a) Except to the extent specifically amended hereby, the Intercreditor
Agreement and all related documents shall remain in full force and effect.
Whenever the terms or sections amended hereby shall be referred to in the
Intercreditor Agreement or such other documents (whether directly or by
incorporation into other defined terms), such defined terms shall be deemed to
refer to those terms or sections as amended by this Amendment.

      (b) This Amendment may be executed in any number of counterparts, each of
which, when executed and delivered, shall be an original, but all counterparts
shall together constitute one instrument.

      (c) This Amendment shall be governed by the laws of the Commonwealth of
Massachusetts and shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and assigns.


                                       3
<PAGE>

IN WITNESS WHEREOF, the parties hereto have executed this Amendment which shall
be deemed to be a sealed instrument as of the date first above written.


                                   GENZYME CORPORATION


                                   By:
                                      -----------------------------------------
                                      Evan Lebson
                                      Treasurer

                                   FINOVA TECHNOLOGY FINANCE, INC.


                                   By: /s/ Linda A. Moschitto
                                      -----------------------------------------
                                      Linda A. Moschitto
                                      Director - Contract Administration

                                   GENZYME TRANSGENICS CORPORATION


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   TSI CORPORATION


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   PRIMEDICA CAMBRIDGE, INC. (formerly
                                   BioDevelopment Laboratories, Inc.)


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   PRIMEDICA ROCKVILLE, INC. (formerly TSI
                                   Washington Laboratories, Inc.)


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                      2
<PAGE>


                                   PRIMEDICA REDFIELD, INC. (formerly TSI
                                   Redfield Laboratories, Inc.)


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   PRIMEDICA WORCESTER, INC., (formerly
                                   TSI Mason Laboratories, Inc.)


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   PRIMEDICA ARGUS RESEARCH LABORATORIES, INC.
                                   (formerly Argus Research Laboratories, Inc.)


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   TRANSGENICS INVESTMENTS, INC.


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   HEALTH SCIENCES RESEARCH INCORPORATED


                                   By: /s/ John B. Green
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                       3
<PAGE>

IN WITNESS WHEREOF, the parties hereto have executed this Amendment which shall
be deemed to be a sealed instrument as of the date first above written.


                                   GENZYME CORPORATION


                                   By: /s/ Evan M. Lebson
                                      -----------------------------------------
                                      Evan Lebson
                                      Treasurer

                                   FINOVA TECHNOLOGY FINANCE, INC.


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

                                   GENZYME TRANSGENICS CORPORATION


                                   By:
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   TSI CORPORATION


                                   By:
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   PRIMEDICA CAMBRIDGE, INC. (formerly
                                   BioDevelopment Laboratories, Inc.)


                                   By:
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer

                                   PRIMEDICA ROCKVILLE, INC. (formerly TSI
                                   Washington Laboratories, Inc.)


                                   By:
                                      -----------------------------------------
                                      John B. Green
                                      Vice President and Chief Financial Officer


                                      2

<PAGE>

                                                                 Exhibit 10.51.4

                       FIRST AMENDMENT TO CREDIT AGREEMENT

      Reference is hereby made to that certain Credit Agreement dated as of
December 28, 1998, by and between Genzyme Transgenics Corporation (the
"Borrower"), and Fleet National Bank ("Lender") (as amended, and as may be
further amended from time to time, the "Credit Agreement"). Capitalized terms
not defined herein shall have the meanings ascribed thereto in the Credit
Agreement.

      WHEREAS, the Borrower and Guarantor have requested that the Lender consent
to an increase the maximum amount of Dividends that may be paid to holders of
its Series A Convertible Preferred Stock for the redemption of such stock and
accrued Dividends thereon, and to agree to permit the payment of Dividends up to
a maximum amount for the purpose of the redemption of Series B Convertible
Preferred Stock and accrued Dividends thereon, and the Lender has agreed to such
change, subject to the terms and conditions of this First Amendment To Credit
Agreement (the "First Amendment").

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

1. Dividends and Redemptions. The Credit Agreement is hereby amended as follows:

            a. Section 2.5 (Revolving Credit Loan Proceeds) of the Credit
Agreement is hereby amended by replacing the phrase "or to redeem shares of its
Series A Convertible Preferred Stock, face value $1,000 per share" with the
phrase "or to redeem shares of its Series B Convertible Preferred Stock, face
value $1,000 per share."

            b. Section 6.6 (Dividends and Redemptions) of the Credit Agreement
is hereby deleted and replaced with the following in lieu thereof:

            "6.6 Dividends and Redemptions. Pay or set aside any amount to pay
            any Dividends; provided, however, that, so long as no Default or
            Event of Default has occurred and is continuing, Borrower may pay
            Dividends to holders of its Series B Convertible Preferred Stock for
            the redemption of such stock and accrued Dividends payable in
            connection with such stock, up to a maximum amount of $15,000,000,
            in accordance with Schedule 6.6 which sets forth the payment
            schedule for the redemption of such stock."

            c. Schedule 6.6 to the Credit Agreement is hereby amended to replace
the sentence "The entire $11,500,000 could be used at any time to repurchase the
Series A Convertible Stock" as it appears therein the following sentence in lieu
thereof: "The entire $15,000,000 could be used at any time to repurchase the
Series B Convertible Stock"; and to replace the title thereof: "Series A
Convertible Stock Purchase Schedule" with the following title in lieu thereof:
"Series B Convertible Stock Purchase Schedule."

2. Consent. The Borrower and Guarantor have requested that the Lender consent to
the Borrower's payment of Dividends to holders of the Borrower's Series A
Convertible Preferred

<PAGE>

Stock for the redemption of such stock and accrued Dividends payable in
connection with such stock, up to a maximum amount of $12,650,000 (the "November
Redemption Transaction"). The funds to be used for such payments will consist of
the entire purchase price to be paid by the Guarantor to purchase Series B
Convertible Preferred Stock of the Borrower, up to a maximum of $12,500,000,
and, if the November Redemption Transaction requires total payments exceeding
$12,500,000, the remaining required amount of such payments will be provided by
the Borrower, up to a maximum amount of $150,000. The Lender's consent to the
payments contemplated by the November Redemption Transaction is required because
(a) prior to the effectiveness of this Amendment, Section 6.6 of the Credit
Agreement limits the total amount of such payments to $11,500,000, and the
maximum that the total aggregate payments required by the November Redemption
Transaction could be is $12,650,000, and (b) after the effectiveness of this
First Amendment, the Borrower may not make any payments of Dividends on account
of Series A Convertible Preferred Stock. The Lender hereby consents to the
Borrower's making such payments in connection with the November Redemption
Transaction.

3. Representations and Warranties. In order to induce the Lender to enter into
this First Amendment, the Borrower and Guarantor make the following
representations and warranties, all of which shall survive the execution and
delivery of this First Amendment:

      (a) Each of the Borrower and the Guarantor has all requisite corporate,
partnership or other power and authority to execute, deliver and perform its
obligations under this First Amendment and under the Credit Agreement, as
amended hereby. This First Amendment has been duly authorized, executed and
delivered by the Borrower and the Guarantor, and does not conflict with, violate
or result in a breach of or require any consent under any applicable law, rule
or regulation or any of the terms of the charter or by-laws (or equivalent
constitutional documents) of the Borrower or the Guarantor, any agreement or
instrument to which the Company, the Guarantor or any Subsidiary of either of
them is a party or to which any of them or their property is bound or to which
any of them is subject. This First Amendment and the Credit Agreement, as
amended hereby, constitute the legal, valid and binding obligation of the
Borrower and the Guarantor enforceable against each in accordance with its
terms.

      (b) On the date hereof each of the representations and warranties in the
Credit Agreement are true, accurate and complete in all material respects,
provided that, if any representation or warranty is expressly required in the
Credit Agreement to be made only as of a specific date, such representation or
warranty shall be true, accurate and complete as of such date in all material
respects.

      (c) Upon the execution and delivery of this First Amendment, and the
satisfaction of each of the conditions precedent set forth in Section 4 of this
First Amendment, no Default or Event of Default shall exist and be continuing.

4. Conditions Precedent. The agreements contained herein and the amendments
contemplated hereby shall become effective on the date (the "Effective Date")
when the Borrower, the Guarantor, and the Lender shall have executed this First
Amendment and when each of the following conditions shall have been fulfilled:

<PAGE>

      (a) Execution of Documents, Etc. This First Amendment and any other
agreements, documents and instruments to be executed and/or delivered in
connection herewith (collectively the "First Amendment Documents") shall have
been duly and properly authorized and executed by the Borrower, the Guarantor,
and the Lender and shall be in full force and effect on and as of the Effective
Date of this First Amendment and all representations and warranties of the
Borrower and Guarantor hereunder shall continue to be true, accurate and
complete.

      (b) Proceedings; Receipt of Documents. All requisite corporate action and
proceedings of the Borrower and Guarantor in connection with the execution and
delivery of this First Amendment and the other First Amendment Documents shall
be satisfactory in form and substance to the Lender and its counsel, and the
Lender and its counsel shall have received all information and copies of all
documents, including without limitation, records of requisite corporate action
and proceedings which the Lender or its counsel may have requested in connection
therewith, such documents where requested by the Lender or its counsel to be
certified by appropriate persons or governmental authorities.

      (c) Material Litigation. There shall be no pending or, to the best
knowledge of the Borrower, threatened litigation with respect to the Borrower or
the Guarantor before any court, arbitrator or governmental or administrative
body or agency which challenges or relates to (i) the transactions contemplated
hereby or (ii) the Loan Documents.

5. Reaffirmation and Ratification of Existing Agreements, Etc. Each of the
Borrower and the Guarantor: (i) reaffirms and ratifies all the Obligations to
the Lender, in respect of the Credit Agreement, as hereby amended, and the other
Loan Documents, (ii) certifies that there are no defenses, offsets or
counterclaims to such Obligations as of the date hereof , (iii) expressly
acknowledges its continuing liability pursuant thereto, and (iv) agrees that
each of the Credit Agreement, as amended hereby, and the other Loan Documents
shall remain in full force and effect, enforceable against the Borrower and
Guarantor in accordance with its terms.

6. Miscellaneous.

      (a) This First Amendment may be executed on separate counterparts by the
parties hereto, each of which when so executed and delivered shall be an
original, but all of which shall constitute one and the same agreement.

      (b) This First Amendment and the rights and obligations of the parties
hereunder shall be construed in accordance with and be governed by the laws of
the Commonwealth of Massachusetts (without giving effect to the conflict of law
principles thereof).

      (c) The headings of the several sections of this First Amendment are
inserted for convenience only and shall not in any way affect the meaning or
construction of any provision of this First Amendment.

      (d) This First Amendment, together with the other First Amendment
Documents, embodies the entire agreement and understanding among the parties
relating to the subject matter

<PAGE>

hereof and supersedes all prior proposals, negotiation, agreements and
understandings relating to such subject matter.

      (e) This First Amendment, together with the other First Amendment
Documents, shall be deemed to be Loan Documents under the Credit Agreement.

      (f) EACH OF THE BORROWER, THE GUARANTOR, AND THE LENDER HEREBY IRREVOCABLY
WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS FIRST
AMENDMENT, OR THE TRANSACTIONS CONTEMPLATED HEREBY.

      (g) The Borrower shall pay on demand the reasonable costs and expenses,
including, without limitation, reasonable attorneys' fees and expenses incurred,
or which may be incurred by the Lender in connection with the negotiation,
documentation, administration and enforcement of this First Amendment.

      IN WITNESS WHEREOF, this First Amendment has been duly executed and
delivered as a sealed instrument at Boston, Massachusetts as of this 12th day of
November, 1999.

                                    THE BORROWER:

                                    GENZYME TRANSGENICS CORPORATION

                                    By: /s/ John B. Green
                                       ----------------------------
                                       Title:


                                    THE GUARANTOR:

                                    GENZYME CORPORATION

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


                                    THE LENDER:

                                    FLEET NATIONAL BANK

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

<PAGE>

hereof and supersedes all prior proposals, negotiation, agreements and
understandings relating to such subject matter.

      (e) This First Amendment, together with the other First Amendment
Documents, shall be deemed to be Loan Documents under the Credit Agreement.

      (f) EACH OF THE BORROWER, THE GUARANTOR, AND THE LENDER HEREBY IRREVOCABLY
WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS FIRST
AMENDMENT, OR THE TRANSACTIONS CONTEMPLATED HEREBY.

      (g) The Borrower shall pay on demand the reasonable costs and expenses,
including, without limitation, reasonable attorneys' fees and expenses incurred,
or which may be incurred by the Lender in connection with the negotiation,
documentation, administration and enforcement of this First Amendment.

      IN WITNESS WHEREOF, this First Amendment has been duly executed and
delivered as a sealed instrument at Boston, Massachusetts as of this 12th day of
November, 1999.

                                    THE BORROWER:

                                    GENZYME TRANSGENICS CORPORATION

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


                                    THE GUARANTOR:

                                    GENZYME CORPORATION

                                    By: /s/ Michael S. Wyzga
                                       ----------------------------
                                       Title:


                                    THE LENDER:

                                    FLEET NATIONAL BANK

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

<PAGE>

hereof and supersedes all prior proposals, negotiation, agreements and
understandings relating to such subject matter.

      (e) This First Amendment, together with the other First Amendment
Documents, shall be deemed to be Loan Documents under the Credit Agreement.

      (f) EACH OF THE BORROWER, THE GUARANTOR, AND THE LENDER HEREBY IRREVOCABLY
WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS FIRST
AMENDMENT, OR THE TRANSACTIONS CONTEMPLATED HEREBY.

      (g) The Borrower shall pay on demand the reasonable costs and expenses,
including, without limitation, reasonable attorneys' fees and expenses incurred,
or which may be incurred by the Lender in connection with the negotiation,
documentation, administration and enforcement of this First Amendment.

      IN WITNESS WHEREOF, this First Amendment has been duly executed and
delivered as a sealed instrument at Boston, Massachusetts as of this 12th day of
November, 1999.

                                    THE BORROWER:

                                    GENZYME TRANSGENICS CORPORATION

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


                                    THE GUARANTOR:

                                    GENZYME CORPORATION

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


                                    THE LENDER:

                                    FLEET NATIONAL BANK

                                    By: /s/ Kimberly Martone
                                       ----------------------------
                                       Title: SVP

<PAGE>
                                                                    EXHIBIT 23.1

                         CONSENT OF INDEPENDENT ACCOUNTANTS

    We hereby consent to the incorporation by reference in the Registration
Statements on Forms S-3 (File Nos. 33-82982, 33-97024, 333-25769, 333-49497,
333-51657, 333-59245) and Forms S-8 (File Nos. 33-69516, 33-69518, 33-69520,
33-84706, 33-88030, 33-92970, 33-92998, 333-04535, 333-29059, 333-29975,
333-29977, 333-34119, 333-56747, 333-56749, 333-80623) of Genzyme Transgenics
Corporation of our report dated February 22, 2000, except as to the information
in the third paragraph of Note 12 for which the date is April 3, 2000, relating
to the financial statements, which appear in the Annual Report on Form 10-K. We
also consent to the incorporation by reference into those Registration
Statements of our report, dated February 22, 2000 on our audits of the financial
statements of ATIII LLC which report is also included in this Annual Report on
Form 10-K. We also consent to the reference to us under the heading "Selected
Financial Data" in this Annual Report on Form 10-K.

/s/ PricewaterhouseCoopers LLP
Boston, Massachusetts
April 3, 2000

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JAN-02-2000
<PERIOD-END>                               JAN-02-2000
<CASH>                                           7,782
<SECURITIES>                                         0
<RECEIVABLES>                                   12,223
<ALLOWANCES>                                       888
<INVENTORY>                                        571
<CURRENT-ASSETS>                                29,604
<PP&E>                                          49,463
<DEPRECIATION>                                  15,161
<TOTAL-ASSETS>                                  84,312
<CURRENT-LIABILITIES>                           43,471
<BONDS>                                         13,897
                                0
                                          0
<COMMON>                                           226
<OTHER-SE>                                      25,939
<TOTAL-LIABILITY-AND-EQUITY>                    84,312
<SALES>                                         68,784
<TOTAL-REVENUES>                                68,784
<CGS>                                           61,694
<TOTAL-COSTS>                                   85,608
<OTHER-EXPENSES>                                 (484)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               2,101
<INCOME-PRETAX>                               (18,441)
<INCOME-TAX>                                       320
<INCOME-CONTINUING>                           (18,761)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (20,258)
<EPS-BASIC>                                     (1.02)
<EPS-DILUTED>                                   (1.02)


</TABLE>

<PAGE>
                                                                      EXHIBIT 99

                        GENZYME TRANSGENICS CORPORATION
             IMPORTANT FACTORS REGARDING FORWARD-LOOKING STATEMENTS
                                   APRIL 2000

    IN THIS EXHIBIT 99, "WE," "US," "OUR" AND "GTC" REFER TO GENZYME TRANSGENICS
CORPORATION AND ITS SUBSIDIARIES.

    From time to time, we may make forward-looking public statements, such as
statements concerning our then expected future revenues or earnings or
concerning projected plans, performance, contract procurement as well as other
estimates relating to future operations. Forward-looking statements may be in
reports filed under the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), in press releases or informal statements made with the approval
of an authorized executive officer. The words or phrases "will likely result,"
"are expected to," "will continue," "is anticipated," "estimate," "project," or
similar expressions are intended to identify "forward-looking statements" within
the meaning of Section 21E of the Exchange Act and Section 27A of the Securities
Act of 1933, as amended, as enacted by the Private Securities Litigation Reform
Act of 1995.

    We wish to caution you not to place undue reliance on these forward-looking
statements which speak only as of the date on which they are made. In addition,
we wish to advise you that the factors listed below, as well as other factors we
have not currently identified, could affect our financial or other performance
and could cause our actual results for future periods to differ materially from
any opinions or statements expressed with respect to future periods or events in
any current statement.

    We will not undertake and specifically decline any obligation to publicly
release revisions to these forward-looking statements to reflect either
circumstances after the date of the statements or the occurrence of events which
may cause us to re-evaluate our forward-looking statements.

    In connection with the "safe harbor" provisions of the Private Securities
Litigation Reform Act, we are hereby filing cautionary statements identifying
important factors that could cause our actual results to differ materially from
those projected in forward-looking statements made by us or on our behalf.

WE EXPECT TO INCUR FUTURE OPERATING LOSSES AND MAY NEVER BECOME PROFITABLE.

    We have had operating losses since our inception, and we expect losses to
continue for the next several years. From our inception in 1993 to January 2,
2000, we have incurred cumulative losses of approximately $65.6 million. These
losses have resulted principally from the costs of our research activities and
expenses in excess of revenues from our contract research organization ("CRO")
services. Our primary sources of revenue have been our research and development
contracts and CRO services. To date, those revenues have not generated profits.
We expect to continue incurring significant operating losses until our product
sales and CRO service revenues sufficiently fund our operations. We cannot be
certain that we will become profitable.

WE FACE UNCERTAINTY IN RAISING ADDITIONAL FUNDS NECESSARY TO FUND OUR
OPERATIONS.

    In order to develop and bring our transgenic products to market, we and our
partners must commit substantial resources to costly and time consuming
research, preclinical testing and clinical trials. If our businesses do not
become profitable before we exhaust existing resources, we will need to obtain
additional financing, through public or private sources, including debt or
equity financings, or through collaborative or other arrangements with corporate
partners. We may not be able to obtain adequate funds for our operations from
these sources when needed or on acceptable terms. If we raise additional capital
through the sale of equity, or securities convertible into equity, your
proportionate ownership in GTC may be diluted. If we cannot obtain additional
financing, we could be forced to delay, scale back or eliminate some of our
research and development programs. In order to conserve capital or reduce our
reliance on
<PAGE>
obtaining new capital, we may also elect to delay or forgo timely expansion,
improvement or investment in our CRO services or dispose of the assets related
to those services.

    These forward-looking statements regarding our expected need for additional
funds are subject to risks and uncertainties. Our cash requirements may vary
materially from those now planned, depending upon the results of existing
businesses, the terms of future collaborations, results of research and
development, competitive and technological advances, regulatory requirements and
other factors.

TRANSGENIC TECHNOLOGY IS IN A RELATIVELY EARLY STAGE.

    Developing products based on transgenic technology is subject to significant
technological risks. Most of our transgenic proteins are in the early
development stage and will require time consuming and costly development,
testing and regulatory clearance. We have not, nor to our knowledge, has any
other entity completed human clinical trials necessary to receive marketing
authorization for any protein produced in the milk of transgenic animals. We
cannot be certain that we will be able to do so successfully, nor can we assure
that any transgenically produced protein will be safe or effective. In addition,
it is possible that research and discoveries by others will render our
transgenic technology obsolete or noncompetitive.

WE CANNOT MARKET AND SELL OUR TRANSGENIC PRODUCTS IN THE UNITED STATES OR IN
OTHER COUNTRIES IF WE FAIL TO OBTAIN THE NECESSARY REGULATORY APPROVALS.

    Obtaining required regulatory approvals for our transgenically produced
products may take several years to complete and may consume substantial capital
resources. We cannot give any assurance that the FDA or any other regulatory
authority will act quickly or favorably on our requests for approval, or that
the FDA or any other regulatory authority will not require us to provide
additional data that we do not currently anticipate in order to obtain
approvals. We cannot apply for FDA approval to market any of our products under
development until the product successfully completes its preclinical and
clinical trials. Several factors could prevent successful completion or cause
significant delays of these trials, including an inability to enroll the
required number of patients or failure to demonstrate adequately that the
product is safe and effective for use in humans. If safety concerns develop, the
FDA could stop our trials before completion. Moreover, to our knowledge, no
protein produced in the milk of a transgenic animal has reached the stage in the
regulatory process which would allow it to be submitted to the FDA for final
regulatory approval. Because transgenic products represent novel therapeutic
products, the process for regulatory approval is unproven. There may be
additional delays in regulatory approval due to issues arising from the breeding
of transgenic animals and the use of proteins derived from such animals. If we
are not able to obtain regulatory approvals for use of our products under
development, or if the patient populations for which they are approved are not
sufficiently broad, the commercial success of our products could be limited.

WE CANNOT ASSURE THE COMMERCIAL SUCCESS OF TRANSGENIC PRODUCTS.

    Even if our transgenically produced products are successfully developed and
approved by the FDA and corresponding foreign regulatory agencies, they may not
enjoy commercial acceptance or success, which would adversely affect our
business and results of operations. Several factors could limit our success,
including:

    - possible limited market acceptance among patients, physicians, medical
      centers and third party payors;

    - our inability to access a sales force capable of marketing the product;

    - our inability to supply a sufficient amount of product to meet market
      demand;

    - the number and relative efficacy of competitive products that may
      subsequently enter the market; and
<PAGE>
    - for a transgenic product designed to replace or supplement currently
      marketed non-transgenic products, the relative risk-benefit profile and
      cost-effectiveness of the transgenically produced product.

    In addition, it is possible that we or our collaborative partners will be
unsuccessful in developing, marketing and implementing a commercialization
strategy for any transgenic products.

IF WE OBTAIN REGULATORY APPROVAL OF OUR TRANSGENIC PRODUCTS, THE PRODUCTS WILL
BE SUBJECT TO CONTINUING REVIEW AND EXTENSIVE REGULATORY REQUIREMENTS WHICH
COULD AFFECT THEIR MANUFACTURE AND MARKETING.

    The FDA and foreign regulatory agencies continue to review products even
after they have received initial approval. If and when the FDA or other agency
approves any of our transgenic products under development, the manufacture and
marketing of these products will be subject to continuing regulation, including
compliance with current Quality Systems Regulations and Good Manufacturing
Practices, known as QSR/GMP, adverse event reporting requirements and
prohibitions on promoting a product for unapproved uses. We will also be
required to obtain additional approvals in the event we significantly alter the
product's labeling or manufacturing process. Enforcement actions resulting from
failure to comply with QSR/GMP requirements could result in fines, suspensions
of approvals, recalls of products, operating restrictions and criminal
prosecutions, and affect the manufacture and marketing of our transgenic
products. The FDA or other regulatory agencies could withdraw a previously
approved product from the market upon receipt of newly discovered information,
including a failure to comply with regulatory requirements, the occurrence of
unanticipated problems with products following approval, or for other reasons.
Any of these withdrawals could adversely affect our operating results.

WE DEPEND ON COLLABORATION AGREEMENTS FOR OUR REVENUE.

    Our revenue stream and our business strategy depend largely on our entering
into transgenic development agreements with third parties. We may not be able to
establish these agreements, and we cannot guarantee that we will establish our
agreements on commercially acceptable terms. Our future agreements may not
ultimately be successful. Even if we enter into transgenic development
agreements, our partners could terminate these agreements or they could expire
before meaningful developmental milestones are reached. The termination or
expiration of any of these agreements could have a material adverse effect on
our business.

    Much of the revenue that we may receive under these collaborations will
depend upon our partners' ability to successfully develop and commercially
introduce, market and sell new products derived from our transgenic production
systems. Our partners may develop competitive production technologies or
competitive products outside of their collaborations with us that could have a
material adverse effect on our business.

    To date, the scope of our collaboration agreements have generally been
limited to transgenically producing limited quantities of targeted proteins. We
cannot be certain that these initial development projects will be successful or
lead to collaboration agreements to commercially produce any proteins. Depending
upon the terms of any future collaborations, our role in the collaboration will
often be limited to the production aspects of the proteins. As a result, we may
also be dependent on collaborators for other aspects of the development,
preclinical and clinical testing, regulatory approval, sales, marketing and
distribution of any transgenic product.

ASPECTS OF OUR OPERATIONS ARE DEPENDENT ON OUR RELATIONSHIP WITH GENZYME.

    We are developing ATIII, our lead compound, in a joint venture in which
Genzyme Corporation ("Genzyme") provides substantial funding. If Genzyme does
not agree to continue that funding, we might not be able to fund ATIII on our
own or obtain funding from another partner on acceptable terms. As of
January 2, 2000 we owed $15.8 million to a commercial bank, which debt is
guaranteed by Genzyme. When Genzyme's guaranty expires, we might not be able to
negotiate an extension or replacement of our credit facility on acceptable
terms.
<PAGE>
CONCENTRATION OF OWNERSHIP OF OUR STOCK COULD LEAD TO FAILURE TO MAXIMIZE STOCK
PRICE AND CONFLICTS OF INTEREST.

    Genzyme is our largest single stockholder, currently holding 8,476,386
shares of our common stock, which represents approximately 31% of our
outstanding common stock. In connection with the issuance of our Series B
convertible preferred stock in November 1999, we issued to Genzyme warrants to
purchase 85,324 shares of our common stock at $6.30 per share. Genzyme's
ownership interest gives it significant influence over certain matters requiring
our stockholders' approval, including electing directors, adopting or amending
certain provisions of our articles of organization or by-laws and approving or
preventing certain mergers or other similar transactions, such as a sale of
substantially all of our assets (including transactions that could give our
stockholders the opportunity to realize a premium over the then-prevailing price
for their shares).

    Furthermore, Genzyme's ownership position may effectively discourage a third
party from making an acquisition proposal. Accordingly, this may inhibit a
change of control in circumstances that could give the holders of our common
stock the opportunity to realize a premium over the then-prevailing market
price, affect the market price of our common stock, or both. Our stockholders
other than Genzyme will be minority equity holders and will be unable to
significantly influence our management or business policies. Four of eight
members of our board of directors also serve as directors and/or executive
officers of Genzyme. The interests of Genzyme and GTC may differ from time to
time.

OUR BUSINESS MAY FAIL DUE TO INTENSE COMPETITION IN OUR INDUSTRY.

    The industries in which we operate are highly competitive and may become
even more competitive. We will need to continue to devote substantial efforts
and expense to research and development in order to maintain a competitive
position. It is possible that developments by others will render our current and
proposed services, products or technologies obsolete. In addition, we may
encounter significant competition for protein development and production
contracts from other companies. Transgenic products may face significant
competition from biological products manufactured in cell culture or by other
traditional protein production methods. Our businesses will compete both against
other companies whose business is dedicated to offering transgenic production or
preclinical testing and development as a service, and with prospective customers
or collaborators who decide to pursue such transgenic production or preclinical
testing and development internally. Many of these competitors have greater
financial and human resources and more experience in research and development
than we have. Competitors that complete clinical trials, obtain regulatory
approvals and begin commercial sales of their products before us will enjoy a
significant competitive advantage. We anticipate that we will face increased
competition in the future as new companies enter the market and alternative
technologies become available.

THE PUBLIC MAY HAVE CONCERNS ABOUT GENETIC ENGINEERING IN ANIMALS AND ANIMAL
TESTING.

    Many of our activities involve genetic engineering in animals and animal
testing. These types of activities have been the subject of controversy and
adverse publicity. Animal rights groups and various other organizations and
individuals have attempted to stop genetic engineering activities and animal
testing by pressing for legislation and regulation in these areas. To the extent
the activities of such groups are successful, they may adversely affect our
business.

THE SUCCESSFUL COMMERCIALIZATION OF OUR PRODUCTS WILL DEPEND ON OBTAINING
COVERAGE AND REIMBURSEMENT FOR USE OF THESE PRODUCTS FROM THIRD-PARTY PAYORS.

    Sales of pharmaceutical products largely depend on the reimbursement of
patients' medical expenses by government health care programs and private health
insurers. Without the financial support of the government or third party
insurers, the market for transgenic products will be limited. We cannot be sure
that third party payors will reimburse sales of our transgenic products, or
enable us or our partners to sell them at profitable prices.

    The federal government and private insurers have considered ways to change,
and have changed, the manner in which health care services are provided and paid
for in the United States. In particular, these
<PAGE>
third party payors are increasingly attempting to contain health care costs by
limiting both coverage and the level of reimbursement for new therapeutic
products. In the future, it is possible that the government may institute price
controls and further limits on Medicare and Medicaid spending. These controls
and limits could affect the payments we collect from sales of our products.
Internationally, medical reimbursement systems vary significantly, with some
medical centers having fixed budgets, regardless of levels of patient treatment,
and other countries requiring application for, and approval of, government or
third party reimbursement. Even if we or our partners succeed in bringing
transgenic products to market, uncertainties regarding future health care
policy, legislation and regulation, as well as private market practices, could
affect our ability to sell our products in commercially acceptable quantities at
profitable prices.

OUR BUSINESS EXPOSES US TO POTENTIAL SERVICE AND PRODUCT LIABILITY.

    The nature of our business exposes us to potential product and professional
liability risks which are inherent in the testing, production, marketing and
sale of human therapeutic products. While we have obtained product and
professional liability insurance under an insurance policy arrangement with
Genzyme and Genzyme's affiliates, we cannot be certain that our insurance
coverage will be sufficient to cover any claim. Uninsured product or service
liability could have a material adverse effect on our financial results.
Additionally, it is possible that any insurance will not provide us with
adequate protection against potential liabilities. Potential liability may arise
from our handling of clinical samples containing human blood and tissues, which
may contain human pathogens. It is also possible that liability may arise from
handling animal blood and tissue which may contain zoonotic pathogens. Although
such products are used only in the laboratory, inadvertent human contact may
occur.

QUALIFIED MANAGERIAL AND SCIENTIFIC PERSONNEL ARE SCARCE IN OUR INDUSTRY.

    We are highly dependent on the principal members of our scientific and
management staff. Our success will depend in part on our ability to identify,
attract and retain qualified managerial and scientific personnel. There is
intense competition for qualified personnel in our industry. We may not be able
to continue to attract and retain personnel with the advanced technical
qualifications or managerial expertise necessary for the development of our
business. If we fail to attract and retain key personnel, it could have a
material adverse effect on our business, financial condition and results of
operations.

OUR CRO BUSINESS IS DEPENDENT ON CURRENT GOVERNMENT REGULATORY REQUIREMENTS.

    The market for our preclinical testing services depends on our maintaining
strict standards for the conduct of laboratory and clinical tests and related
procedures that are promulgated by governmental entities responsible for public
health and welfare, including the FDA and by regulatory authorities in other
countries. The process of obtaining these approvals varies according to the
nature and use of the product and routinely involves lengthy and detailed
laboratory and clinical testing and other costly and time-consuming procedures.
We offer customers of our preclinical testing and development services the
necessary expertise to comply with these complex regulations. If the regulatory
structure were to change in a way which reduced the need for such services, we
could be materially adversely affected.

WE DEPEND ON PATENTS AND PROPRIETARY RIGHTS THAT MAY FAIL TO PROTECT OUR
BUSINESS.

    Our success will partly depend on our ability to obtain and maintain patent
or other proprietary protection for our technologies, products and processes
such as:

    - compositions of matter or processes;

    - processes developed by our employees; or

    - uses of compositions of matter discovered through our technology.

    We may not be able to obtain the necessary protection. Our success will also
depend on our ability to operate without infringing the proprietary rights of
other parties. Legal standards relating to the validity of patents covering
pharmaceutical and biotechnological inventions and the scope of claims made
under
<PAGE>
these patents are still developing. There is no consistent policy regarding the
breadth of claims allowed in biotechnology patents. The patent position of a
biotechnology firm is highly uncertain and involves complex legal and factual
questions.

    We have been issued six patents and currently have 20 provisional or regular
applications solely owned by us and two regular applications co-owned with
others pending in the United States. Where appropriate there are counterparts in
other countries. We may not receive any issued patents based on pending or
future applications. Our issued patents may not contain claims sufficiently
broad to protect us against competitors with similar technology. Additionally,
our patents, our partners' patents and patents for which we have license rights
may be challenged, narrowed, invalidated or circumvented. Furthermore, rights
granted under patents may not provide us with any competitive advantage.

    We may have to initiate arbitration or litigation to enforce our patent and
license rights. If our competitors file patent applications that claim
technology also claimed by us, we may have to participate in interference or
opposition proceedings to determine the priority of invention. An adverse
outcome could subject us to significant liabilities to third parties and require
us to cease using the technology or to license the disputed rights from third
parties. We may not be able to obtain any required licenses on commercially
acceptable terms or at all.

    The cost to us of any litigation or proceeding relating to patent rights,
even if resolved in our favor, could be substantial. Some of our competitors may
be able to sustain the costs of complex patent litigation more effectively than
we can because of their substantially greater resources. Uncertainties resulting
from the initiation and continuation of any pending patent or related litigation
could have a material adverse effect on our ability to compete in the
marketplace.

    We rely on certain proprietary trade secrets and know-how that are not
patentable. We have taken measures to protect our unpatented trade secrets and
know-how, including having our employees, consultants and some contractors
execute confidentiality agreements. These agreements could be breached. If so,
it is possible that our remedies for a given breach might be inadequate. It is
also possible that competitors could independently develop or discover our trade
secrets or that the trade secrets could otherwise become known.

WE HAVE OBLIGATIONS TO ISSUE SHARES OF COMMON STOCK IN THE FUTURE WHICH WILL
DILUTE YOUR OWNERSHIP INTEREST AND MAY ADVERSELY AFFECT OUR STOCK PRICE.

    Sales of substantial amounts of our common stock in the public market, or
the perception that such sales may occur, could adversely affect the prevailing
market price of the common stock. As of March 20, 2000, there were 28,487,880
shares of common stock outstanding. As of March 20, 2000, options to purchase an
aggregate of 2,427,249 shares of common stock at varying exercise prices were
outstanding; of such total, options for 1,291,388 shares were immediately
exercisable and such shares could be immediately resold into the public market.
All of the 8,476,386 shares of common stock held by Genzyme could be sold into
the public markets upon compliance with Rule 144. The 518,324 shares issuable to
Genzyme upon exercise of outstanding warrants are also entitled to registration
rights, which could expedite the resale of such shares into the public market.
Another 478,000 shares of common stock are reserved for issuance upon exercise
of outstanding warrants, all of which are currently exercisable and 450,000 of
which can be sold into the public market under a currently effective
registration statement.

OUR COMMON STOCK MAY HAVE A VOLATILE PUBLIC TRADING PRICE AND LOW TRADING
VOLUME.

    The market price of our common stock has been highly volatile and the market
for our common stock has experienced significant price and volume fluctuations,
some of which are unrelated to our Company's operating performance. Many factors
can have a significant adverse effect on our common stock's market price,
including:

    - announcements by us or our competitors of technological innovations or new
      commercial products;

    - developments concerning our proprietary rights, including patent and
      litigation matters;
<PAGE>
    - publicity regarding actual or potential results relating to our or our
      partners' products or compounds under development;

    - an unexpected termination of one of our partnerships;

    - regulatory developments in the United States and other countries;

    - general market conditions; and

    - quarterly fluctuations in our revenues and other financial results.

ANTI-TAKEOVER PROVISIONS IN OUR CHARTER AND BY-LAWS AND MASSACHUSETTS LAW MAY
ADVERSELY AFFECT OUR STOCK PRICE.

    Our articles of organization, certain provisions of our by-laws and certain
provisions of Massachusetts law could delay or make more difficult a merger,
tender offer or proxy contest involving us. These provisions may have the effect
of delaying or preventing a change of control without action by the stockholders
and, therefore, could adversely affect the price of our common stock.


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission