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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                   FORM 10-Q
 
          /X/  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
                        SECURITIES EXCHANGE ACT OF 1934
 
                      FOR THE PERIOD ENDED MARCH 31, 1996
 
                                       OR
 
           / /  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF
                      THE SECURITIES EXCHANGE ACT OF 1934
 
      FOR THE TRANSITION PERIOD FROM ________________ TO ________________
 
                              COMMISSION FILE NO.
                                    0-19731
 
                            ------------------------
 
                             GILEAD SCIENCES, INC.
             (Exact name of registrant as specified in its charter)
 

                                       
                DELAWARE                     94-3047598
    (State or other jurisdiction of       (I.R.S. Employer
     incorporation or organization)        Identification
                                                No.)
 
    353 LAKESIDE DRIVE, FOSTER CITY,            94404
               CALIFORNIA
(Address of principal executive offices)     (Zip Code)
 
       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA
                    CODE:  415-574-3000

 
    Indicate  by check  mark whether  the registrant  (1) has  filed all reports
required to be filed by  Section 13 or 15(d) of  the Securities Exchange Act  of
1934  during  the preceding  12  months (or  for  such shorter  period  that the
Registrant was required to file such reports), and (2) has been subject to  such
filing requirements for the past 90 days.
 
                           Yes __X__          No _____
 
    Number  of shares outstanding of the  issuer's common stock, par value $.001
per share, as of April 12, 1996: 28,322,049.
 
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                             GILEAD SCIENCES, INC.
                                     INDEX
 


                                                                                                           PAGE NO.
                                                                                                        ---------------
                                                                                                  
PART I.  FINANCIAL INFORMATION
Item 1.    Consolidated Financial Statements and Notes
           Consolidated Balance Sheets -- March 31, 1996 and December 31, 1995........................             3
           Consolidated Statements of Operations -- for the three months ended March 31, 1996 and
            1995......................................................................................             4
           Consolidated Statements of Cash Flows -- for the three months ended March 31, 1996 and
            1995......................................................................................             5
           Notes to Consolidated Financial Statements.................................................             6
Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations......             7
 
PART II.  OTHER INFORMATION
Item 6.    Exhibits and Reports on Form 8-K...........................................................             9
SIGNATURES............................................................................................            10

 
                                       2

                         PART I.  FINANCIAL INFORMATION
 
ITEM 1.  CONSOLIDATED FINANCIAL STATEMENTS AND NOTES
 
                             GILEAD SCIENCES, INC.
                          CONSOLIDATED BALANCE SHEETS
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)
                                     ASSETS
 


                                                                                                        MARCH 31,    DECEMBER 31,
                                                                                                          1996           1995
                                                                                                       -----------   ------------
                                                                                                       (UNAUDITED)      (NOTE)
                                                                                                               
Current assets:
  Cash and cash equivalents..........................................................................   $ 49,364       $ 27,420
  Short-term investments.............................................................................    254,449        128,239
  Prepaid expenses and other current assets..........................................................      2,530          1,558
                                                                                                       -----------   ------------
    Total current assets.............................................................................    306,343        157,217
Property and equipment, net..........................................................................      7,928          8,369
Other assets.........................................................................................      1,162          1,073
                                                                                                       -----------   ------------
                                                                                                        $315,433       $166,659
                                                                                                       -----------   ------------
                                                                                                       -----------   ------------
 
                                              LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable...................................................................................   $    839       $  2,412
  Accrued clinical and preclinical expenses..........................................................      5,255          3,923
  Other accrued liabilities..........................................................................      3,464          2,229
  Deferred contract revenues.........................................................................      2,500            208
  Current portion of equipment financing obligations and long-term debt..............................      2,892          2,906
                                                                                                       -----------   ------------
    Total current liabilities........................................................................     14,950         11,678
Noncurrent portion of equipment financing obligations and long-term debt.............................      2,812          3,482
Commitments
Stockholders' equity:
  Common stock, par value $.001 per share; 35,000,000 shares authorized; 28,305,016 shares and
   23,769,878 shares issued and outstanding at March 31, 1996 and December 31, 1995, respectively....         28             24
  Additional paid-in capital.........................................................................    422,504        265,460
  Unrealized gains (losses) on investments, net......................................................       (136)           167
  Accumulated deficit................................................................................   (123,556)      (112,754)
  Deferred compensation..............................................................................     (1,169)        (1,398)
                                                                                                       -----------   ------------
    Total stockholders' equity.......................................................................    297,671        151,499
                                                                                                       -----------   ------------
                                                                                                        $315,433       $166,659
                                                                                                       -----------   ------------
                                                                                                       -----------   ------------

 
Note: The  consolidated balance sheet at December 31, 1995 has been derived from
      audited financial statements at that date but does not include all of  the
      information  and  footnotes  required  by  generally  accepted  accounting
      principles for complete financial statements.
 
                            See accompanying notes.
 
                                       3

                             GILEAD SCIENCES, INC.
                CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 


                                                                                                                   THREE MONTHS
                                                                                                                       ENDED
                                                                                                                     MARCH 31,
                                                                                                                 -----------------
                                                                                                                   1996     1995
                                                                                                                 --------  -------
                                                                                                                    (UNAUDITED)
                                                                                                                     
Total revenues.................................................................................................  $    779  $   930
Operating costs and expenses:
  Research and development.....................................................................................     9,309    8,054
  Selling, general and administrative..........................................................................     4,839    2,765
                                                                                                                 --------  -------
Total operating costs and expenses.............................................................................    14,148   10,819
                                                                                                                 --------  -------
Loss from operations...........................................................................................   (13,369)  (9,889)
Interest income, net...........................................................................................     2,567    1,016
                                                                                                                 --------  -------
Net loss.......................................................................................................  $(10,802) $(8,873)
                                                                                                                 --------  -------
                                                                                                                 --------  -------
Net loss per share.............................................................................................  $  (0.42) $ (0.46)
                                                                                                                 --------  -------
                                                                                                                 --------  -------
Common shares used in the calculation of net loss per share....................................................    25,669   19,105
                                                                                                                 --------  -------
                                                                                                                 --------  -------

 
                            See accompanying notes.
 
                                       4

                             GILEAD SCIENCES, INC.
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS
                                 (IN THOUSANDS)
 


                                                                                                               THREE MONTHS ENDED
                                                                                                                   MARCH 31,
                                                                                                             ----------------------
                                                                                                                1996        1995
                                                                                                             ----------  ----------
                                                                                                                   
                                                                                                                  (UNAUDITED)
Cash flows from operating activities:
  Net loss.................................................................................................  $  (10,802) $   (8,873)
  Adjustments used to reconcile net loss to net cash used in operating activities:
    Depreciation and amortization..........................................................................       1,084       1,104
    Changes in assets and liabilities:
      Prepaid expenses and other current assets............................................................        (972)       (379)
      Other assets.........................................................................................         (89)        143
      Accounts payable.....................................................................................      (1,573)        293
      Accrued clinical and preclinical expenses............................................................       1,332         248
      Other accrued liabilities............................................................................       1,235         786
      Deferred contract revenues...........................................................................       2,292        (800)
                                                                                                             ----------  ----------
        Total adjustments..................................................................................       3,309       1,395
                                                                                                             ----------  ----------
        Net cash used in operating activities..............................................................      (7,493)     (7,478)
                                                                                                             ----------  ----------
Cash flows from investing activities:
  Purchases of short-term investments......................................................................    (158,631)    (23,508)
  Sales of short-term investments..........................................................................       3,883      --
  Maturities of short-term investments.....................................................................      28,235      46,863
  Capital expenditures.....................................................................................        (414)       (168)
                                                                                                             ----------  ----------
        Net cash (used in) provided by investing activities................................................    (126,927)     23,187
                                                                                                             ----------  ----------
Cash flows from financing activities:
  Payments of equipment financing obligations and long-term debt...........................................        (684)       (702)
  Proceeds from issuance of common stock...................................................................     157,048         107
                                                                                                             ----------  ----------
        Net cash (used in) provided by financing activities................................................     156,364        (595)
                                                                                                             ----------  ----------
Net increase in cash and cash equivalents..................................................................      21,944      15,114
Cash and cash equivalents at beginning of period...........................................................      27,420      15,296
                                                                                                             ----------  ----------
Cash and cash equivalents at end of period.................................................................  $   49,364  $   30,410
                                                                                                             ----------  ----------
                                                                                                             ----------  ----------

 
                            See accompanying notes.
 
                                       5

                             GILEAD SCIENCES, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 MARCH 31, 1996
                                  (UNAUDITED)
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    BASIS OF PRESENTATION
 
    The information at  March 31, 1996,  and for the  three month periods  ended
March  31, 1996 and 1995, is  unaudited but includes all adjustments (consisting
only of normal recurring adjustments) which,  in the opinion of management,  are
necessary  to  state  fairly  the financial  information  set  forth  therein in
accordance with generally  accepted accounting principles.  The interim  results
are  not necessarily indicative  of results to  be expected for  the full fiscal
year. These financial statements should be read in conjunction with the  audited
financial statements for the fiscal year ended December 31, 1995 included in the
Company's  annual report  to security  holders furnished  to the  Securities and
Exchange Commission pursuant to Rule  14a-3(b) in connection with the  Company's
1996 Annual Meeting of Stockholders.
 
    NET LOSS PER SHARE
 
    Net  loss per share is computed using  the weighted average number of common
shares outstanding during the period. Common stock equivalents relating to stock
options are excluded from the computation as their effect is antidilutive.
 
    DEFERRED COMPENSATION
 
    The  Company  records  deferred  compensation  on  option  grants  for   the
difference between the grant price and the market value on the date of grant and
amortizes such amounts over the five year vesting period of the options.
 
2.  INVESTMENTS
 
    Management  determines the appropriate classification  of debt securities at
the time of purchase and reevaluates  such designation as of each balance  sheet
date.  The Company's debt  securities, which consist  primarily of U.S. Treasury
Securities, are classified  as available-for-sale and  are carried at  estimated
fair  value in cash equivalents and short-term investments. Unrealized gains and
losses are  reported  as  a  separate component  of  stockholders'  equity.  The
amortized  cost of debt securities in this category is adjusted for amortization
of premiums  and  accretion  of  discounts to  maturity.  Such  amortization  is
included  in interest  income. Realized  gains and  losses on available-for-sale
securities are included in interest income  and expense. The cost of  securities
sold  is based on the specific  identification method. Interest and dividends on
securities classified as available-for-sale are included in interest income.  At
March  31, 1996, the contractual maturities of the debt securities do not exceed
two years.
 
3.  AGREEMENT WITH GLAXO
 
    In March 1996, Gilead and Glaxo  Wellcome Inc. ("Glaxo") entered into a  new
collaborative   research  agreement,  extending  for  five  years  the  existing
collaboration between the parties. Under the  terms of the new agreement,  Glaxo
will  fund Gilead's ongoing research  in the code blocker  field for five years.
Each party has a worldwide right to the other party's patent rights to research,
develop, manufacture and sell products based on code blocker technology for  all
applications.  Glaxo  will  have  the  primary  right  to  develop  any products
identified  during  the  collaboration.  Gilead  is  entitled  to  payments  for
achievement of regulatory milestones, as well as royalties on any product sales.
Glaxo  has a right  to terminate the  collaborative research and  funding at any
time after two years, in which case Gilead could develop code blocker technology
independently or  with a  third party.  Under  the terms  of the  agreement  the
Company  received $3.0 million in  March 1996 to fund  research during the first
year of the new agreement.
 
                                       6

4.  AUTHORIZED COMMON STOCK
 
    On January 22,  1996, the Board  of Directors approved  an amendment to  the
Company's  certificate  of incorporation,  increasing  the number  of  shares of
common stock the Company is authorized  to issue from 35,000,000 to  60,000,000.
This increase is subject to stockholder approval.
 
ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS
 
OVERVIEW
 
    Since  its inception in  June 1987, Gilead has  devoted substantially all of
its resources to its research and development programs. To date, Gilead has  not
received  any  revenues  from  the  sale  of  products.  The  Company  has  been
unprofitable since its inception and expects to incur substantial losses for the
next several  years, due  primarily to  its research  and development  programs,
including  preclinical studies,  clinical trials  and manufacturing,  as well as
increasing commercialization and marketing and sales efforts in anticipation  of
potential  product sales.  The Company expects  that losses  will fluctuate from
quarter to quarter and that such  fluctuations may be substantial. There can  be
no   assurance  that  the  Company  will  successfully  develop,  commercialize,
manufacture and market its products or ever achieve or sustain product  revenues
or  profitability. As of  March 31, 1996, the  Company's accumulated deficit was
approximately $123.6 million.
 
    The successful development and  commercialization of the Company's  products
will  require  substantial and  ongoing  efforts at  the  forefront of  the life
sciences industry. There are currently no commercially available products  based
on  the nucleotide technologies  being developed by the  Company. The Company is
pursuing preclinical or clinical development of a number of product  candidates.
Even  if  these product  candidates appear  promising  during various  stages of
development, they may not reach the market for a number of reasons. Such reasons
include the possibilities that the potential products will be found  ineffective
or unduly toxic during preclinical or clinical trials, fail to receive necessary
regulatory  approvals,  be  difficult  to  manufacture  on  a  large  scale,  be
uneconomical to market  or be  precluded from  commercialization by  proprietary
rights of others.
 
    As  an  early stage  company  in an  industry  undergoing rapid  change, the
Company faces significant challenges and risks, including the risks inherent  in
its  research and development programs, uncertainties in obtaining and enforcing
patents,  the  lengthy  and  expensive  regulatory  approval  process,   intense
competition from pharmaceutical and biotechnology companies, increasing pressure
on  pharmaceutical  pricing  from  payors,  patients  and  government  agencies,
limitations on the availability of capital and uncertainties associated with the
eventual  market   acceptance   of  VISTIDE-Registered   Trademark-   (cidofovir
injection)  or any  of the  Company's products  in development.  These risks are
discussed in greater detail in the Company's Annual Report on Form 10-K for  the
period  ended December  31, 1995.  Stockholders and  potential investors  in the
Company should  carefully consider  these risks  in evaluating  the Company  and
should be aware that the realization of any of these risks could have a dramatic
and negative impact on the Company's stock price.
 
    This  Report  contains  forward-looking statements  that  involve  risks and
uncertainties. The Company's  actual results may  differ significantly from  the
results  discussed in the  forward-looking statements. Factors  that might cause
such a difference include, but  are not limited to,  the risks discussed in  the
Company's Annual Report on Form 10-K for the period ended December 31, 1995.
 
RESULTS OF OPERATIONS
 
REVENUES
 
    The  Company had  total revenues  of $0.8 million  and $0.9  million for the
quarters ended  March 31,  1996 and  1995, respectively.  Revenues during  these
periods  resulted  primarily  from  the  Company's  collaborative  research  and
development agreement with Glaxo. In March  1996, the Company and Glaxo  entered
into  a  new  collaborative research  agreement,  extending for  five  years the
existing collaboration between the parties.
 
                                       7

OPERATING COSTS AND EXPENSES
 
    For the quarter ended March 31, 1996, the Company's research and development
expenses increased 16% to $9.3 million from $8.1 million for the same period  in
1995.  This increase was due primarily  to increases in research and development
staffing, preclinical  expenses  and  expenses  associated  with  the  Company's
ongoing  clinical trials for several product candidates. The Company expects its
research  and  development  expenses  in   the  remainder  of  1996  will   grow
significantly  reflecting anticipated increased expenses related to additions to
staffing, preclinical studies, clinical trials and manufacturing.
 
    Selling, general  and administrative  expenses were  $4.8 million  and  $2.8
million   for  the  quarters  ended  March  31,  1996  and  1995,  respectively,
representing an  increase of  75%. This  increase was  incurred to  support  the
Company's  establishment  of  marketing  and sales  capabilities  in  advance of
potential product launch and  to support the  expanded research and  development
efforts, as well as to expand corporate development activities and related legal
expenses  and patent  activities. The Company  expects its  selling, general and
administrative expenses to significantly increase  during the remainder of  1996
in  connection  with  the establishment  of  sales and  marketing  capability in
anticipation of potential product  sales, related commercialization efforts  and
corporate development activities.
 
NET INTEREST INCOME
 
    The Company had net interest income of $2.6 million and $1.0 million for the
quarters  ended March 31, 1996 and  1995, respectively, representing an increase
of 153%. Net interest  income has significantly increased  due to the  Company's
higher  average  cash and  cash equivalents  and short-term  investment balances
which resulted from the Company's two public offerings of common stock completed
in February 1996 and August 1995.
 
LIQUIDITY AND CAPITAL RESOURCES
 
    Cash and cash equivalents and short-term investments were $303.8 million  at
March 31, 1996 compared to $155.7 million at December 31, 1995. This increase is
the  result of the  Company's public offering  of common stock  in February 1996
which generated $155.6 million in  net proceeds. No significant construction  or
build-out  costs or  other significant capital  expenditures are  expected to be
incurred during  1996. During  1996, the  Company expects  to incur  substantial
research  and  development  and selling,  general  and  administrative expenses,
including expenses  related  to  additions  to  staffing,  preclinical  studies,
clinical  trials and commercialization expenses and marketing and sales expenses
in anticipation of  potential product  launch. The Company  is actively  seeking
additional  collaborative agreements  with corporate  partners. There  can be no
assurance, however, that any such agreements  will be entered into or that  they
will  reduce  the  Company's  funding  requirements.  The  Company  expects that
additional equity or  debt financings may  be required to  fund its  operations.
There  can be no assurance that such funds will be available on favorable terms,
if at all.
 
    Net cash used in  operations was $7.5  million for each  of the three  month
periods  ended March  31, 1996 and  1995, respectively. The  Company expects its
cash requirements to grow in future periods due to higher expenses. However, the
Company believes that its existing capital resources will be adequate to satisfy
its capital  needs for  the  foreseeable future.  The Company's  future  capital
requirements  will  depend  on  many  factors,  including  the  progress  of the
Company's research and development, the scope and results of preclinical studies
and clinical trials, the  cost, timing and outcomes  of regulatory reviews,  the
rate of technological advances, determinations as to the commercial potential of
the  Company's products under development, the  commercial performance of any of
the Company's products that receive marketing approval, administrative and legal
expenses, the status of competitive products, the establishment of manufacturing
capacity or third-party manufacturing  arrangements, the establishment of  sales
and  marketing capabilities and the establishment of collaborative relationships
with other companies.
 
                                       8

                           PART II. OTHER INFORMATION
 
ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K.
 
    (a) Exhibits
 
    None
 
    (b) Reports on Form 8-K
 
    There were no  reports on Form  8-K filed  for the Quarter  ended March  31,
1996.
 
                                       9

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

                                            
                                                           GILEAD SCIENCES, INC.
                                               --------------------------------------------
                                                               (Registrant)
 
Date: April 26, 1996                                      /s/ MICHAEL L. RIORDAN
                                               --------------------------------------------
                                                            Michael L. Riordan
                                                          Chairman and President
 
Date: April 26, 1996                                       /s/ MICHAEL F. BIGHAM
                                               --------------------------------------------
                                                             Michael F. Bigham
                                                  Executive Vice President for Operations
                                                        and Chief Financial Officer
                                               (Principal Financial and Accounting Officer)

 
                                       10