SUGEN INC
10-Q, 1999-08-16
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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================================================================================

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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

                                    FORM 10-Q

(Mark one)

 X  Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange
- --- Act of 1934.  For the quarterly period ended June 30, 1999.

    or

    Transition report pursuant to Section 13 or 15(d) of the Securities Exchange
- --- Act of 1934. For the transition period from ___________ to ___________.


                             Commission File Number:
                                     0-24814
                          -----------------------------


                                   SUGEN, Inc.
             (Exact name of registrant as specified in its charter)

             Delaware                                    13-3629196
   (State or other jurisdiction of                    (I.R.S. Employer
   incorporation or organization)                     Identification No.)


          230 East Grand Avenue, South San Francisco, California 94080
                    (address of principal executive offices)

                                 (650) 553-8300
              (Registrant's telephone number, including area code)


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


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

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest  practicable  date.  Common Stock $.01 par value;
16,989,452 shares outstanding at July 31, 1999.


================================================================================


<PAGE>



<TABLE>

                                   SUGEN, Inc.

                                      INDEX


<CAPTION>


                                                                                             PAGE NO.
                                                                                             --------
<S>                                                                                             <C>
PART I.  FINANCIAL INFORMATION

Item 1.           Financial Statements and Notes

                  Condensed Consolidated Balance Sheets - June 30, 1999
                  and December 31, 1998                                                          3

                  Condensed Consolidated Statements of Operations - for the three and
                  six months ended June 30, 1999 and 1998                                        4

                  Condensed Consolidated Statements of Cash Flows - for the six
                  months ended June 30, 1999 and 1998                                            5

                  Notes to Condensed Consolidated Financial Statements                           6

Item 2.           Management's Discussion and Analysis of Financial
                  Condition and Results of Operations                                            10

Item 3.           Quantitative and Qualitative Disclosures About Market Risk                     15

PART II. OTHER INFORMATION

Item 4.           Submission of Matters to a Vote of Security Holders                            16

Item 5.           Other Information                                                              17

Item 6.           Exhibits and Reports on Form 8-K                                               17

Signatures                                                                                       18

Exhibit Index                                                                                    19


</TABLE>

                                        2

<PAGE>

<TABLE>

                                                PART I. FINANCIAL INFORMATION

Item 1.   FINANCIAL STATEMENTS AND NOTES

                                                         SUGEN, Inc.

                                            CONDENSED CONSOLIDATED BALANCE SHEETS
                                                       (In thousands)

<CAPTION>

                                                                                                      June 30,          December 31,
                                                                                                        1999                1998
                                                                                                     ---------            ---------
<S>                                                                                                  <C>                  <C>
ASSETS                                                                                               (unaudited)             (1)
Current assets:
        Cash and cash equivalents                                                                    $  18,710            $  23,901
        Short-term investments                                                                          28,897               23,396
        Accounts receivable                                                                                650                  373
        Prepaid expenses and other current assets                                                        1,275                1,022
                                                                                                     ---------            ---------
              Total current assets                                                                      49,532               48,692

Property and equipment, net                                                                              8,306                7,863
Other assets                                                                                             2,137                2,778
                                                                                                     =========            =========
                                                                                                     $  59,975            $  59,333
                                                                                                     =========            =========

LIABILITIES AND STOCKHOLDERS' EQUITY (NET CAPITAL DEFICIENCY)
Current liabilities:
        Accounts payable                                                                             $   3,363            $   4,883
        Accrued liabilities                                                                             19,998               13,910
        Deferred contract revenue                                                                          625                1,625
        Capital lease obligations - current portion                                                      4,689                2,779
                                                                                                     ---------            ---------
              Total current liabilities                                                                 28,675               23,197

Long-term liabilities:
        Capital lease obligations - non-current portion                                                  4,922                5,724
        Senior convertible notes                                                                        44,903                5,694
                                                                                                     ---------            ---------
              Total long-term liabilities                                                               49,825               11,418

Stockholders' equity:

        Common stock                                                                                   162,436              157,171
        Deferred compensation                                                                             (789)                (971)
        Note receivable from stockholder                                                                  (883)                (883)
        Accumulated deficit                                                                           (179,289)            (130,599)
                                                                                                     ---------            ---------
              Total stockholders' equity (net capital deficiency)                                      (18,525)              24,718
                                                                                                     ---------            ---------
                                                                                                     $  59,975            $  59,333
                                                                                                     =========            =========

<FN>

(1)  Derived from audited financial statements at this date.

                                                       See accompanying notes.
</FN>
</TABLE>
                                                                 3
<PAGE>
<TABLE>

                                                                SUGEN, Inc.

                                                   CONSOLIDATED STATEMENTS OF OPERATIONS
                                                  (In thousands, except per share amounts)
                                                                (unaudited)
<CAPTION>


                                                                                   Three Months Ended           Six Months Ended
                                                                                        June 30,                     June 30,
                                                                                 ---------------------------------------------------
                                                                                   1999          1998          1999          1998
                                                                                 --------      --------      --------      --------
<S>                                                                              <C>           <C>           <C>           <C>
Contract revenue (includes amounts from related party
   of $824 and $1,649 for the three and six months ended June 30,
   1999 and $801 and $1,602 for the same periods in prior year)                  $  2,485      $  2,351      $  6,747      $  3,996


Costs and expenses:
         Research and development                                                  16,577        11,711        33,105        21,143
         General and administrative                                                 4,534         1,999         7,207         3,844
                                                                                 --------      --------      --------      --------
            Total costs and expenses                                               21,111        13,710        40,312        24,987
                                                                                 --------      --------      --------      --------

Operating loss                                                                    (18,626)      (11,359)      (33,565)      (20,991)

Other income and expenses:
         Interest income                                                              668           883         1,189         1,862
         Interest and other expense                                               (15,013)         (399)      (15,500)         (867)
                                                                                 --------      --------      --------      --------
            Other income/(loss), net                                              (14,345)          484       (14,311)          995
                                                                                 --------      --------      --------      --------
Net loss                                                                         $(32,971)     $(10,875)     $(47,876)     $(19,996)
                                                                                 ========      ========      ========      ========


Basic and diluted net loss per share                                             $  (1.95)     $  (0.69)     $  (2.85)     $  (1.28)
                                                                                 ========      ========      ========      ========

Shares used in computing basic and diluted net loss
  per share                                                                        16,916        15,721        16,799        15,533
                                                                                 ========      ========      ========      ========

<FN>

                                                      See accompanying notes.
</FN>
</TABLE>
                                                                 4

<PAGE>

<TABLE>
                                                             SUGEN, Inc.

                                           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                          Increase (decrease) in cash and cash equivalents
                                                           (In thousands)
                                                             (unaudited)

<CAPTION>

                                                                                                          Six Months Ended June 30,
                                                                                                         ---------------------------
                                                                                                           1999              1998
                                                                                                         --------          --------

<S>                                                                                                      <C>               <C>
Cash flows from operating activities
Net loss                                                                                                 $(47,876)         $(19,996)
Adjustments to reconcile net loss to net cash provided (used) by
  operating activities:
      Depreciation, amortization and issuance of stock for non-cash benefits                                2,586             1,919
      Loss on extinguishment of 1997 Notes                                                                  2,094              --
      Derivative mark-to-market valuation                                                                  12,050              --
      Changes in operating assets and liabilities:
        Prepaid expenses and other current assets                                                            (530)                9
        Other assets                                                                                          478               (47)
        Accounts payable                                                                                   (1,520)              587
        Accrued liabilities                                                                                 5,423             2,482
        Deferred revenue                                                                                   (1,000)             --
                                                                                                         --------          --------
Net cash used in operating activities                                                                     (28,295)          (15,046)
                                                                                                         --------          --------

Cash flows from investing activities
Sales/maturities (purchases) of short-term investments, net                                                (5,644)            4,757
Purchases of property and equipment, net                                                                   (1,620)           (1,730)
                                                                                                         --------          --------
Net cash provided by (used in) investing activities                                                        (7,264)            3,027
                                                                                                         --------          --------

Cash flows from financing activities
Proceeds from issuance of common stock, net                                                                 3,152             3,092
Proceeds from issuance of senior convertible notes, net                                                    26,108              --
Proceeds from lease financing of property and equipment                                                     2,513             2,102
Payments under capital lease obligations                                                                   (1,405)           (1,199)
                                                                                                         --------          --------
Net cash provided by financing activities                                                                  30,368             3,995
                                                                                                         --------          --------

Net decrease in cash and cash equivalents                                                                  (5,191)           (8,024)
Cash and cash equivalents at beginning of period                                                           23,901            23,816
                                                                                                         --------          --------
Cash and cash equivalents at end of period                                                               $ 18,710          $ 15,792
                                                                                                         ========          ========

Supplemental schedule of noncash investing and
      financing activities:
Issuance of common stock upon conversion of Senior Custom
      Convertible Notes, due 2000, net                                                                   $    631          $  7,136
                                                                                                         ========          ========
Issuance of warrants for non-cash services                                                               $    550          $     69
                                                                                                         ========          ========

<FN>



                                                  See accompanying notes.
</FN>
</TABLE>

                                                                  5

<PAGE>




                                   SUGEN, Inc.

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

                                   (Unaudited)


1.       Summary of Organization and Significant Accounting Policies

         Basis of Presentation

         The accompanying  condensed  consolidated  financial statements include
         the  accounts  of  SUGEN,  Inc.  ("SUGEN"  or the  "Company")  and  its
         wholly-owned  subsidiaries.  All material intercompany transactions and
         balances  have  been   eliminated  in   consolidation.   The  condensed
         consolidated  financial  statements as of June 30, 1999,  the condensed
         consolidated  statements  of  operations  for the three and six  months
         ended June 30, 1999 and 1998, and the condensed consolidated statements
         of cash flows for the six months  ended  June 30,  1999 and 1998,  have
         been  prepared  by the  Company  and are  unaudited.  In the opinion of
         management,  all  necessary  adjustments  (consisting  only  of  normal
         recurring  adjustments)  which the Company considers  necessary for the
         fair  presentation  of the  financial  position  at such  date  and the
         operating  results and cash flows for those periods are  included.  The
         accompanying condensed consolidated financial statements should be read
         in conjunction with the financial  statements and notes thereto for the
         year ended  December 31, 1998 included in the  Company's  Form 10-K, as
         amended,  filed with the U.S. Securities and Exchange  Commission.  The
         results of the  Company's  operations  for any  interim  period are not
         necessarily indicative of the results of the Company's operations for a
         full fiscal year.

         Comprehensive Income (Loss)

         Statement  of  Financial   Accounting  Standards  No.  130,  "Reporting
         Comprehensive  Income,"  requires  companies  to report in their annual
         financial  statements  an additional  measure of income.  Comprehensive
         income (loss) includes  foreign currency  translation  gains and losses
         and  unrealized  gains and losses on equity  securities  that have been
         previously  excluded from net income and  reflected  instead in equity.
         Total  comprehensive  loss  amounted to $33.7 million and $48.7 million
         for the three and six month periods ended June 30, 1999,  respectively.
         For the same periods last year, total  comprehensive  loss approximated
         net loss.

         Derivative Financial Instruments

         Warrants  issued to purchase  convertible  debt  ("Warrant  Notes") are
         valued when issued using the fair value method and are marked-to-market
         through  interest  expense until such time as the warrant is exercised.
         Upon exercise of the warrants,  the difference between the then current
         fair market value of the warrant and the beneficial conversion feature,
         if any,  will be  recorded as a premium or discount  and  amortized  to
         interest  expense  over the term of the Warrant  Notes.  Mark-to-market
         charges  totaled $12.1 million in the three and six month periods ended
         June 30,  1999 (none in 1998) but had no impact on the  Company's  cash
         flows.

         Recent Accounting Pronouncement

         In June 1998, the Financial Accounting Standards Board issued Statement
         of Financial  Accounting  Standards No. 133, "Accounting for Derivative
         Instruments   and  Hedging   Activities."   SFAS  No.  133  establishes
         accounting  and reporting  standards  requiring  that every  derivative
         instrument  be  recorded  in the  balance  sheet as  either an asset or
         liability  measured at its fair value.  It requires that changes in the
         derivative's fair value be recognized currently in earnings


                                        6


<PAGE>

                                   SUGEN, Inc.

        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

                                   (Unaudited)


1.       Summary of Organization and Significant Accounting Policies (continued)

         unless  specific hedge  accounting  criteria are met and that a company
         must  formally  document,  designate  and assess the  effectiveness  of
         transactions  that receive hedge  accounting.  SFAS No.133 is effective
         for fiscal years  beginning  after June 15, 1999.  The adoption of SFAS
         133  could  have  a  material  impact  on  the  Company's   results  of
         operations, as significant  mark-to-market adjustments of the Company's
         derivative  financial  instruments  may result due to  fluctuations  in
         interest  rates  and the price of the  Company's  common  stock,  which
         historically has been volatile.

2.       Agreement and Plan of Merger

         On June 15, 1999,  SUGEN  entered into an Agreement  and Plan of Merger
         (the  "Merger  Agreement")  with  Pharmacia & Upjohn,  Inc., a Delaware
         corporation  ("Parent"),  and University  Acquisition Corp., a Delaware
         corporation   and   wholly   owned   subsidiary   of  Parent   ("Merger
         Subsidiary").  Subject  to the  terms  and  conditions  of  the  Merger
         Agreement,  Merger  Subsidiary will be merged with and into the Company
         (the  "Merger") at the  effective  time of the Merger,  and the Company
         will become a wholly owned subsidiary of Parent.

         At the effective time of the Merger,  the outstanding  shares of common
         stock,  $.01 par value  per  share,  of the  Company  ("Company  Common
         Stock"),  other than shares of Company  Common  Stock to be canceled in
         accordance with the Merger Agreement,  will be converted into the right
         to  receive  that  number of shares  (the  "Exchange  Ratio") of common
         stock,  par value $.01 per share,  of Parent  ("Parent  Common Stock"),
         based on the average (rounded to the 1/10,000, or if there shall not be
         a  nearest  1/10,000,  to the  next  highest  1/10,000)  of the  volume
         weighted averages (rounded to the 1/10,000,  or if there shall not be a
         nearest  1/10,000,  to the next highest 1/10,000) of the trading prices
         of Parent Common Stock on the New York Stock Exchange,  Inc.  ("NYSE"),
         as  reported  by  Bloomberg  Financial  Markets for each of the 20 NYSE
         trading days ending on and including the third trading day  immediately
         preceding the meeting of  stockholders of the Company called to vote on
         the Merger (the "Average  Price"),  determined  as follows:  (i) if the
         Average Price is greater than $49.21875 and less than  $60.15626,  then
         the  Exchange  Ratio shall equal $31.00  divided by the Average  Price;
         (ii) if the Average Price is equal to or less than $49.21875,  then the
         Exchange  Ratio shall equal  0.62984;  or (iii) if the Average Price is
         equal to or greater than $60.15625, then the Exchange Ratio shall equal
         0.51533.   In  addition,   Parent  will  assume   outstanding   options
         exercisable for Company Common Stock.

         The  Merger  is  intended  to be a  tax-free  reorganization  under the
         Internal  Revenue  Code of 1986,  as  amended,  and is  intended  to be
         accounted  for as a  pooling-of-interests.  The  Merger is  subject  to
         approval by the stockholders of the Company,  regulatory  approvals and
         other customary closing  conditions.  A proxy statement has been mailed
         to all of the  Company's  stockholders  regarding a vote to approve the
         Merger  Agreement at a special  meeting of  stockholders  to be held on
         August 31, 1999.  Certain affiliates of the Company entered into voting
         agreements on June 15, 1999,  pursuant to which such affiliates  agreed
         to vote shares  owned by them in favor of the Merger.  Also on June 15,
         1999,  the Company  entered into a Stock Option  Agreement  with Parent
         (the "Stock Option Agreement") pursuant to which the Company granted an
         option to Parent to purchase up to 3,372,255  shares of Company  Common
         Stock at a price of $31.00  per share  upon the  occurrence  of certain
         events related to termination of the Merger Agreement.


                                        7
<PAGE>

                                  SUGEN, Inc.

        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

                                   (Unaudited)


3.       Accrued Liabilities

         The components of accrued liabilities consist of the following:

                                                          June 30,  December 31,
                                                            1999          1998
                                                           -------       -------
                                                               (In thousands)

         Accrued research & development services           $10,909       $ 6,859
         Accrued compensation                                1,879         1,937
         Accrued professional fees                           1,398         1,118
         Other                                               5,812         3,996
                                                           -------       -------
                                                           $19,998       $13,910
                                                           =======       =======

4.       Research and Development Collaboration Agreements

         Laboratorios Del Dr. Esteve S.A.

         In March 1999,  the Company,  through its  affiliate,  SUGEN Europe AG,
         entered  into  an  agreement  with  Laboratorios  Del Dr.  Esteve  S.A.
         ("Esteve") to distribute,  market and sell SUGEN's  proprietary  cancer
         products  in Spain,  Portugal  and  Andorra.  In  connection  with this
         agreement, the Company recognized $1.4 million in net up-front fees and
         Esteve, through its affiliate Laboratorios P.E.N., S.A., purchased $1.0
         million of SUGEN Common Stock at $31.50 per share, of which the premium
         above fair market value was recorded as equity.

         ASTA Medica Aktiengesellschaft

         In  March  1999,  the  Company  received  the  second  of two  $750,000
         installments  in  consideration  to extend  the  period of time for the
         screening and selection of active  compounds under the Pan-Her program.
         $375,000 was recognized as contract revenue for 1999 services,  and the
         remaining  $375,000 was in the form of the purchase of 10,964 shares of
         SUGEN Common Stock at $34.20 per share, of which the premium above fair
         market value was recorded as equity.

         The Company has no future performance  obligations  associated with the
         purchase of common stock at a premium by ASTA Medica or Esteve, nor did
         either  party  receive  rights  or  privileges   other  than  customary
         registration  rights  and the rights and  privileges  of the  Company's
         other common stockholders.

5.       Senior Convertible Notes

         5% Senior Custom Convertible Notes due 2000

         Through  June 30,  1999,  $12.6  million of  principal  and accrued and
         unpaid interest relating to the Company's  outstanding 5% Senior Custom
         Convertible  Notes due 2000 (the  "1997  Notes")  were  converted  into
         1,051,530  shares of Common Stock at a weighted average price of $12.11
         per share.  Upon conversion,  the principal and the related accrued and
         unpaid  interest  were  recorded  as equity,  net of the  proportionate
         unamortized deferred offering costs.

                                        8


<PAGE>

                                  SUGEN, Inc.

        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (continued)

                                   (Unaudited)


5.       Senior Convertible Notes (continued)

         In April and May 1999,  $5.0  million of the 1997 Notes were  exchanged
         into 12% Senior Convertible Notes due 2002 (the "Exchange Notes"), at a
         premium of 125% - 132% of their principal amount, for approximately (i)
         $6.5  million  principal  amount  of the  Exchange  Notes and (ii) $4.9
         million  Warrants to acquire  Warrant  Notes.  The premium  paid on the
         exchange was deemed a  substantial  modification  to the 1997 Notes and
         was accounted for as a loss on extinguishment of debt together with the
         unamortized debt issue costs and debt discount. A loss of approximately
         $2.1  million  was  recorded  in the second  quarter  when the debt was
         extinguished.  At June 30, 1999, the 1997 Notes were fully converted or
         exchanged.


         12% Senior Convertible Notes due 2002

         In March 1999,  the Company  completed  the private  placement of $28.0
         million principal amount of 12% Senior  Convertible Notes due 2002 (the
         "Notes").  The Notes are convertible  into SUGEN Common Stock at $20.50
         per share.  Interest on the Notes may be paid in SUGEN  Common Stock or
         cash,  at  the  Company's  option.  As  part  of  the  Note  placement,
         purchasers  were issued  warrants (the  "Warrants") to acquire up to an
         additional  $21.0 million  principal  amount of 12% Senior  Convertible
         Notes which will mature on the third  anniversary date of issuance (the
         "Warrant  Notes").  The Warrant  Notes will have  principally  the same
         terms and  conditions as the original  Notes.  The Warrants to purchase
         the Warrant Notes are exercisable until March 2001. The Company has the
         right,  at its option,  to require the  exercise of the Warrants by the
         holders in the event that the  closing  price of the  Company's  Common
         Stock exceeds  certain levels during the term of the Warrants,  subject
         to certain limitations.

         The estimated  fair value of the Warrants as of June 30, 1999 was $14.1
         million and is subject to quarterly adjustments for changes in the fair
         value during the period the Warrants are outstanding  and  unexercised.
         The fair value of the  Warrants  was based on the June 30, 1999 closing
         market price of $29.50  resulting  in  approximately  $12.1  million in
         additional non-cash interest expense. The costs and expenses related to
         the  issuance of the Notes and Warrants of  approximately  $3.8 million
         were recorded as debt discount and issuance  costs and are amortized to
         interest expense over the respective term of the Notes and Warrants. If
         upon  exercise of the Warrants the fair value of the  Company's  Common
         Stock is more  than  $20.50  per  share  (the  conversion  price of the
         Warrant Notes),  the Company may record an additional  non-cash expense
         for such  beneficial  conversion  feature (if such benefit  exceeds the
         previously recorded fair value of the Warrants).


6.       Subsequent Events

         In July and  August  1999,  Warrants  to  acquire  approximately  $17.7
         million in Warrant  Notes were  exercised.  The Warrant Notes mature in
         2002 and principally have the same terms and conditions as the original
         Notes issued March 1999.



                                        9
<PAGE>

                                  SUGEN, Inc.

Item 2.         MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

         In addition to historical  information  contained herein, the following
discussion contains words such as "intends," "believes," "anticipates," "plans,"
"expects" and similar expressions which are intended to identify forward-looking
statements  within the meaning of Section 27A of the  Securities Act of 1933, as
amended,  and Section 21E of the  Securities  Exchange Act of 1934,  as amended,
which are subject to the "safe harbor" created by those sections.  The Company's
actual  results  could  differ  materially  from the results  discussed in these
forward-looking  statements.  Factors  that could  cause or  contribute  to such
differences include the factors discussed below as well as the factors discussed
in the Company's  Form 10-K, as amended,  for the year ended  December 31, 1998.
Readers  are  cautioned  not to place undue  reliance  on these  forward-looking
statements,  which speak only as of the date hereof.  The Company  undertakes no
obligation  to release  the  results of any  revision  to these  forward-looking
statements which may be made to reflect events or circumstances  occurring after
the date hereof or to reflect the occurrence of unanticipated events.


Overview

         SUGEN was founded in July 1991 to  discover  and develop new classes of
small  molecule  drugs  which  target  specific  cellular  signal   transduction
pathways.  These  signalling  pathways  are involved in a variety of chronic and
acute  pathological  diseases,  including  cancer  and  diabetes  as  well as in
dermatologic,  ophthalmic, neurologic and immune disorders. One of the Company's
drug candidates is SU101, a PDGF TK signalling antagonist. The Company initiated
a Phase  III  clinical  trial  for use of SU101 as a  treatment  for  refractory
glioblastoma during the first quarter of 1998. Additionally, SUGEN currently has
underway  multiple Phase II studies  including SU101 in combination with BCNU in
front-line  glioma,  mono-therapy in ovarian and non-small cell lung cancers and
mono-therapy and in combination with mitozantrone in hormone refractory prostate
cancer.  A Phase  II  study of SU101 as  single  agent  therapy  for  refractory
anaplastic  astrocytoma,  another type of malignant  brain tumor,  is also being
conducted  in parallel  with the Phase III trial,  and at the same  centers.  To
date,   approximately   515  patients   have  been  treated  with  SU101  in  14
Company-sponsored   clinical   trials.   The  Company's  second  cancer  product
candidate, SU5416, is a Flk-1/KDR TK antagonist which inhibits angiogenesis (the
process by which blood vessels are formed). Currently, the Company is conducting
multiple  Phase I clinical  trials for SU5416 in solid  tumors in Europe and the
U.S.  and a Phase  I/II  study of SU5416 in  Kaposi's  sarcoma  in the U.S.  The
Company  announced  plans to  accelerate  the  development  of  SU5416  with the
initiation of Phase III clinical  trials in non-small  cell lung and  colorectal
cancers,  and for Phase  II/III  studies in  Kaposi's  sarcoma.  Meanwhile,  the
Company will be working with certain  investigators on National Cancer Institute
sponsored  Phase II and Phase  I/II  studies  in other  cancer  indications.  In
December 1998, the Company filed an  Investigational  New Drug  application with
the U.S. Food and Drug  Administration  for its third cancer product,  SU6668, a
novel  broad  spectrum  inhibitor  of  angiogenesis  and tumor  growth,  and has
initiated Phase I clinical  trials in Europe and the U.S. using  intravenous and
oral formulations, respectively. Through June 30, 1999, substantially all of the
Company's  revenue  apart from  interest  income  has been  earned  pursuant  to
collaborations  with  Zeneca  Limited  ("Zeneca"),   Taiho  Pharmaceutical  Ltd.
("Taiho"),   Vision  Pharmaceuticals  L.P.,  an  affiliate  of  Allergan,  Inc.,
Allergan,  Inc.  (collectively  "Allergan")  and ASTA Medica  Aktiengesellschaft
("ASTA Medica").

         In June 1998, the Company  established  SUGEN  International AG ("SUGEN
International"),  as a wholly owned subsidiary. SUGEN Europe AG ("SUGEN Europe")
was  established  in  August  1998,  as  a  wholly  owned  subsidiary  of  SUGEN
International.


                                       10
<PAGE>

Both entities are incorporated in the Canton of Schaffhausen, Switzerland. SUGEN
International  and SUGEN  Europe  will  hold  certain  rights  to the  Company's
technology  portfolio  outside of North  America.  The  entities  were formed to
facilitate  commercialization  of the  Company's  products  outside  the  United
States.

         On June 15, 1999,  SUGEN  entered into an Agreement  and Plan of Merger
(the "Merger Agreement") with Pharmacia & Upjohn,  Inc., a Delaware  corporation
("Parent"),  and University Acquisition Corp., a Delaware corporation and wholly
owned  subsidiary  of Parent  ("Merger  Subsidiary").  Subject  to the terms and
conditions of the Merger  Agreement,  Merger  Subsidiary will be merged with and
into the Company (the  "Merger") at the  effective  time of the Merger,  and the
Company will become a wholly owned subsidiary of Parent.

         At the effective time of the Merger,  the outstanding  shares of common
stock, $.01 par value per share, of the Company ("Company Common Stock"),  other
than shares of Company Common Stock to be canceled in accordance with the Merger
Agreement,  will be  converted  into the right to receive  that number of shares
(the  "Exchange  Ratio") of common  stock,  par value $.01 per share,  of Parent
("Parent Common Stock"),  based on the average  (rounded to the 1/10,000,  or if
there shall not be a nearest  1/10,000,  to the next  highest  1/10,000)  of the
volume weighted  averages  (rounded to the 1/10,000,  or if there shall not be a
nearest 1/10,000,  to the next highest 1/10,000) of the trading prices of Parent
Common  Stock on the New York Stock  Exchange,  Inc.  ("NYSE"),  as  reported by
Bloomberg  Financial  Markets for each of the 20 NYSE trading days ending on and
including   the  third  trading  day   immediately   preceding  the  meeting  of
stockholders of the Company called to vote on the Merger (the "Average  Price"),
determined as follows:  (i) if the Average  Price is greater than  $49.21875 and
less than  $60.15626,  then the Exchange Ratio shall equal $31.00 divided by the
Average  Price;  (ii) if the Average  Price is equal to or less than  $49.21875,
then the Exchange  Ratio shall equal  0.62984;  or (iii) if the Average Price is
equal to or greater than $60.15625, then the Exchange Ratio shall equal 0.51533.
In addition,  Parent will assume  outstanding  options  exercisable  for Company
Common Stock.

         The  Merger  is  intended  to be a  tax-free  reorganization  under the
Internal  Revenue Code of 1986, as amended,  and is intended to be accounted for
as a pooling-of-interests. The Merger is subject to approval by the stockholders
of the Company,  regulatory approvals and other customary closing conditions.  A
proxy statement has been mailed to all of the Company's stockholders regarding a
vote to approve the Merger  Agreement at a special meeting of stockholders to be
held on August 31, 1999.  Certain  affiliates of the Company entered into voting
agreements on June 15, 1999,  pursuant to which such  affiliates  agreed to vote
shares owned by them in favor of the Merger,  currently expected to be completed
during the third  quarter.  Also on June 15,  1999,  the Company  entered into a
Stock Option  Agreement with Parent (the "Stock Option  Agreement")  pursuant to
which the Company granted an option to Parent to purchase up to 3,372,255 shares
of Company  Common Stock at a price of $31.00 per share upon the  occurrence  of
certain events related to termination of the Merger Agreement.

         The  Company has not been  profitable  since  inception  and expects to
incur  substantial  losses  for the  foreseeable  future,  primarily  due to the
acceleration of its three cancer products in clinical development along with the
manufacturing  scale-up  and  preparation  for  potential  New Drug  Application
filings  for SU101 and SU5416 in 2000.  The  Company  expects  that  losses will
fluctuate from quarter to quarter and that such fluctuations may be substantial.
As of June 30, 1999, the Company's accumulated deficit was $179.3 million.

Results of Operations

         The Company's  consolidated revenues for the three and six months ended
June 30, 1999 were $2.5 million and $6.7 million, respectively. Revenues for the
three and six months  ended June 30, 1999  included  contract  revenue  from the
Taiho,  Zeneca,  Allergan  and ASTA Medica  collaborations.  In  addition,  $1.4
million in net  non-recurring  up front fees was  recognized in connection  with
SUGEN  Europe   establishing  a  marketing  and   distribution   agreement  with
Laboratorios Del Dr. Esteve S.A., Spain's second largest pharmaceutical company.





                                       11
<PAGE>

These up front fees  combined with Taiho related  contract  funding  resulted in
increased  revenue for the first half of 1999 of approximately 69% over the same
period last year. Research funding under certain of the Company's collaborations
are scheduled to expire in accordance  with their  original  terms in the fourth
quarter of 1999 and the first  quarter of 2000 which will  reduce the  Company's
annual revenues by approximately $5.8 million.

         Research and development  expenses increased to $16.6 million and $33.1
million,  respectively,  for the three and six months  ended June 30,  1999 from
$11.7 million and $21.1 million for the same periods last year.  The increase in
spending over the same period last year was primarily due to  advancements  made
in the Company's  clinical programs,  including  additional Phase II studies and
the  progression  of the Phase III  registrational  study of SU101 and  expanded
Phase I and Phase I/II studies of SU5416.  Also  contributing to higher expenses
in 1999 was moving the Company's  third cancer  product,  SU6668,  into clinical
trials along with higher personnel related costs  accompanying the growth in the
Company's  research  and  development  programs.  The Company  expects  that its
research and  development  expenses will continue to grow in future years due to
the clinical  advancement  of SU101,  SU5416 and SU6668 in the United States and
Europe, including the related manufacturing and process development efforts, the
hiring of  personnel,  additional  preclinical  studies,  the  initiation of new
clinical trials on additional drug candidates and pursuant to requirements under
the Company's anticipated future collaborations.

         General and administrative  expenses for the three and six months ended
June 30, 1999 were $4.5 million and $7.2  million,  respectively.  These results
compare to expenses of $2.0  million and $3.8  million for the same periods last
year.  Included in general and administrative  expenses for the quarter was $1.7
million in expenses  associated with the Company's planned merger with Pharmacia
& Upjohn,  Inc. which primarily represent legal and accounting fees. The Company
expects to record  approximately  $11.0  million in  additional  merger  related
expenses in 1999.  Excluding the merger related  costs,  the increase in general
and  administrative  expenses  was  primarily  due to higher  headcount  related
expenses and costs associated with the Company's international  operations.  The
Company  expects that its general and  administrative  expenses will continue to
increase in order to support the Company's  expanding  research and  development
efforts.

         Interest  income for the three and six months  ended June 30,  1999 was
$668,000 and $1.2 million,  respectively,  compared to $883,000 and $1.9 million
earned for the same  periods  last year.  The  decrease in 1999 was due to lower
investment  balances  resulting  from the  timing of cash flows  generated  from
financing  activities.  Interest and other  expense for the three and six months
ended June 30, 1999 was $15.0 million and $15.5 million, respectively,  compared
to $399,000  and $867,000  for the same  periods  last year.  The $14.6  million
increase  over the prior year was  principally  due to a non-cash  $12.1 million
mark-to-market  adjustment to record the change in fair value of the outstanding
and unexercised  warrants  issued in connection with the March 1999  convertible
note  financing.  The  significant  mark-to market  adjustment was driven by the
increase in the  Company's  stock price  resulting  from the  announced  planned
merger with  Pharmacia & Upjohn,  Inc. In addition,  interest and other  expense
included  a  $2.1  million  loss  on  extinguishment  of the  5%  Senior  Custom
Convertible Notes due 2000.  Monthly interest expense is expected to increase in
future  periods as a result of the third  quarter  exercise of note warrants and
the  continued  use of  capital  lease  financing  for  equipment  and  facility
improvements.

Liquidity and Capital Resources

          At  June  30,  1999,  the  Company  had  cash,  cash  equivalents  and
short-term   investments   of   approximately   $47.6   million   compared  with
approximately  $47.3  million at December 31, 1998.  The net proceeds  resulting
from the issuance of the 12% Senior  Convertible Notes in March 1999 were offset
by the net operating losses for the first half.





                                       12

<PAGE>

         Through June 1999,  the Company's  principal  sources of financing have
been its  initial  and  follow-on  public  offerings  of Common  Stock,  private
placements  of the Company's  Preferred and Common Stock and senior  convertible
notes and funds  received  under the  Company's  corporate  collaborations.  The
Company's   current   principal  sources  of  liquidity  are  its  research  and
development  collaborations  with Taiho,  Zeneca,  Allergan and ASTA Medica, its
cash, cash  equivalents and short-term  investments and capital lease financing.
Also, in accordance with the terms of the Merger Agreement,  Pharmacia & Upjohn,
Inc.  will provide up to $35 million in financing  during the  remainder of 1999
under certain  circumstances.  The research funding terms under the Allergan and
Zeneca  collaborations  are  scheduled to expire in October 1999 and March 2000,
respectively. If the funding arrangements are not renewed by these collaborative
partners,  the Company will scale back its resources dedicated to these programs
and reassign these  resources to other research and  development  areas. At June
30, 1999, the Company had capital lease lines of $2.5 million  available for the
purchase of equipment and facility improvements.

         The Company has entered into license and  research  agreements  whereby
the Company funds research projects performed by others or in-licenses compounds
from third  parties.  Some of the  agreements  may  require  the Company to make
milestone and royalty payments.  Under these programs,  commitments for external
research funding are approximately  $1.6 million,  $1.5 million and $1.2 million
in 1999, 2000 and 2001,  respectively.  Most of these commitments are cancelable
within a three-to-six  month period and limit the amounts payable by the Company
for sponsored  research  under the programs  after notice of  cancellation.  The
Company  anticipates  renewing certain contracts that expired in 1997 which will
increase future  commitments  beyond the levels indicated above for 1999 through
2001.

         Net  additions  of equipment  and  leasehold  improvements  for the six
months  ended June 30,  1999 was $1.6  million  compared to $1.7  million  spent
during the same period last year. The Company expects that its capital additions
for 1999  will be lower  than  that of the  prior  year as 1998  included  costs
associated with the completion of the Company's new build-to-suit  facility.  In
April 1999,  the Company  entered into a third  amendment to its facility  lease
agreement thereby exercising the first of two available  expansion options.  The
Company's  obligations  and related  interest  expense  will  increase in future
periods  due to the  exercise  of this  expansion  option,  however  this is not
expected to have a notable  financial  impact  until early  2000,  the  targeted
completion date of the expansion.

         In the event the merger with Pharmacia & Upjohn is not consummated, the
Company estimates that its existing capital resources together with facility and
equipment  financing that  Pharmacia & Upjohn agreed to provide  pursuant to the
merger agreement  expected revenues from current  collaborations  and net income
from investment  activities,  will be sufficient to fund its planned  operations
into 2000. However, there can be no assurance that the underlying assumed levels
of revenue and expense  will prove  accurate.  Whether or not these  assumptions
prove to be  accurate,  in the event the merger  with  Pharmacia & Upjohn is not
consummated,  the Company will need to raise substantial  additional  capital to
fund its operations.  If necessary,  the Company intends to seek such additional
funding  through  collaborative  arrangements,  public or private equity or debt
financings and capital lease  transactions;  however,  there can be no assurance
that additional  financing will be available on acceptable  terms, or at all. If
additional  funds are raised by issuing equity  securities,  further dilution to
stockholders  may result.  In addition,  in the event that additional  funds are
obtained through arrangements with collaborative partners, such arrangements may
require the Company to relinquish rights to certain of its technologies, product
candidates  or products  that the  Company  would  otherwise  seek to develop or
commercialize  itself.  If adequate funds are not available,  the Company may be
required to delay,  reduce the scope of or eliminate one or more of its research
or  development  programs,  which  could have a material  adverse  effect on the
Company.

Year 2000

         The Year 2000 Issue is the result of information technologies, computer
systems and  scientific  and  manufacturing  equipment  being  written using two
digits  rather  than four  digits to define the  applicable  year.  As a result,
time-sensitive   functions  of  those   software   programs  and  equipment  may
misinterpret  dates after  January 1, 2000,  to refer to the  twentieth  century
rather than the twenty-first

                                       13

<PAGE>

century.   This  could  cause  system  or  equipment   shutdowns,   failures  or
miscalculations  resulting in  inaccuracies in computer output or disruptions of
operations,  including,  among other things,  inaccurate processing of financial
information  and/or  temporary  inability to process  transactions,  manufacture
products, or engage in similar normal business activities.

         The Company has a Year 2000 Project ("Y2K Project") in place to address
the  potential  exposures  related to the  impact on its  computer  systems  and
scientific and manufacturing  equipment  containing  computer related components
for the Year 2000 ("Y2K") and beyond.  Approximately  half of the  Company's Y2K
scheduled  work is complete.  The remaining work is scheduled to be completed by
the end of the fourth  quarter of 1999.  The Y2K  Project  phases  include:  (1)
inventorying  and prioritizing  business  critical  systems;  (2) Y2K compliance
analysis; (3) remediation activities including repairing or replacing identified
systems; (4) testing; and (5) developing contingency plans.

         An  inventory  of  business  critical   financial,   informational  and
operational  systems has been completed.  This inventory has been prioritized to
reflect key items of  significance.  Compliance  analysis is  approximately  90%
complete for these systems. Remediation activities vary by department;  however,
on average,  remediation  activities are approximately 90% complete.  Testing of
the Company's information technology infrastructure is 100% complete. Testing of
business critical  application  programs began in the second quarter of 1999 and
is scheduled to be complete by the fourth quarter of 1999.  Contingency planning
has begun in the second  quarter of 1999.  The  Company  believes  that with the
completed  modifications,  the Y2K issue will not pose  significant  operational
problems  for  its  key  computer  systems  and  equipment.   However,  if  such
modifications  and  conversions  are not made,  or are not completed in a timely
fashion,  the Y2K issue could have a material  impact on the  operations  of the
Company, the precise degree of which cannot be known at this time.

         In addition to risks associated with the Company's own computer systems
and equipment,  the Company has  relationships  with, and is to varying  degrees
dependent upon, a large number of third parties that provide information,  goods
and services to the Company.  These include financial  institutions,  suppliers,
vendors and research and development associates. If significant numbers of these
third parties experience  failures in their computer systems or equipment due to
Y2K   noncompliance,   it  could  affect  the   Company's   ability  to  process
transactions,   manufacture  products  or  engage  in  similar  normal  business
activities.  While some of these risks are  outside the control of the  Company,
the Company has instituted  programs,  including internal records review and use
of external questionnaires, to identify key third parties, assess their level of
Y2K compliance, update contracts and address any noncompliance issues. The total
cost of the Y2K systems  assessments and conversions is funded through operating
cash  flows  and is not  expected  to  exceed  $200,000  of which  approximately
$100,000 has been spent to date.  The actual  financial  impact could,  however,
exceed this estimate.

         To the extent that the assessment is finalized without  identifying any
material noncompliant  information technology systems operated by the Company or
by third  parties,  the most  reasonably  likely  worst case Y2K  scenario  is a
systematic   failure   beyond  the   Company's   control,   such  as   prolonged
telecommunications  or  electrical  failure.  Such a failure  could  prevent the
Company from  operating  our  business.  The Company  believes  that the primary
business risks in the event of such failure, would include:

     o  Interruption in manufacturing process (clinical supplies, validation and
        registration runs);

     o  Inability  to  access   clinical   data  to  compile   timely  New  Drug
        Applications;

     o  Inability to conduct research and development experiments; and

     o  Claims of mismanagement, misinterpretation or breach of contract.

         Any  of  these  risks  would  have a  material  adverse  effect  on the
Company's business, results of operations and financial condition.


                                       14

<PAGE>

Item 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

         The Company is exposed to market  risk,  including  changes to interest
rates,  foreign currency exchange rates and the volatility of its stock price. A
discussion of the Company's  accounting  policies for financial  instruments and
further disclosures relating to financial instruments is included in the Summary
of Organization  and Significant  Accounting  Policies in the Notes to Condensed
Consolidated Financial Statements.

         The Company  monitors  the risks  associated  with  interest  rates and
foreign currency  exchange rate risks and has established  policies and business
practices to protect against these and other  exposures.  The Company places its
investments in instruments that meet high credit quality standards, as specified
in the Company's investment policy guidelines; the policy also limits the amount
of credit  exposure to any one issue,  issuer or type of instrument and does not
permit  derivative  financial  instruments in its investment  portfolio.  As the
result,  the  Company  does not expect  any  material  loss with  respect to its
investment portfolio.

<TABLE>
         The following table provides  information about the Company's financial
instruments  that are  sensitive to changes in interest  rates.  For  investment
securities, the table presents principal cash flows and related weighted-average
interest rates by expected maturity dates.

<CAPTION>


                                                                                                                  Fair
                                                                                            There               Value At
(in millions)                          1999        2000        2001       2002      2003    -after      Total    6/30/99
                                    -------------------------------------------------------------------------------------

<S>                                      <C>        <C>         <C>       <C>         <C>      <C>     <C>        <C>
Assets

Cash and cash equivalents                $ 18.7      -          -          -          -        -       $ 18.7     $ 18.7
 Weighted average interest rate           4.71%

Short-term investments                   $ 13.8     $  11.5     $  3.3     -          -        -       $ 28.6     $ 28.9
 Weighted average interest rate           4.74%       4.22%      5.09%

Liabilities

12% Senior convertible notes             -           -          -          $ 34.5     -        -       $ 34.5     $ 63.3
 Weighted average interest rate                                               12%

</TABLE>

         The Company has no cash flow  exposure to interest  rate changes on its
12% Senior Convertible Notes. The Company's earnings however are affected by the
volatility of its stock price and interest  rates as a result of its issuance of
warrants to acquire  additional 12% Senior  Convertible  Notes.  Due to the high
stock price  resulting from the pending  Pharmacia & Upjohn,  Inc.  merger,  the
non-cash  mark-to-market  adjustment was $12.1 million  reflecting the change in
fair  value of the  warrants  from  March  31,  1999.  Although  changes  in the
valuation of this derivative impacted earnings,  the Company's cash flow was not
affected as reflected in the Company's  second  quarter  financial  results.  As
exercises of these warrants occur, the Company may record an additional non-cash
expense for the beneficial conversion feature.






                                       15
<PAGE>

                           PART II. OTHER INFORMATION


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

         On  May  19,  1999,  the  Company  held  its  1999  Annual  Meeting  of
         Stockholders. The following actions were taken at the meeting:

(a)      The  following two  directors  were each elected for a three-year  term
         expiring at the 2002 Annual Meeting of Stockholders:

              1.  14,710,638  shares  voted in favor of Jeremy Curnock  Cook and
                  46,515  shares  withheld  their vote;
              2.  14,709,443  shares voted in favor of Gerald Moller,  Ph.D. and
                  47,710 shares withheld their vote;

         The following individuals' terms of office as directors continued after
the meeting:

              Stephen Evans-Freke
              Samuel A. Hamad
              Donald E. Nickelson
              Richard D. Sprizzirri
              Axel Ullrich

(b)
         1.   A proposal to approve an  amendment  to the  Company's  1992 Stock
              Option  Plan,  as amended,  to increase  the  aggregate  number of
              shares of Common Stock  available for issuance by 750,000  shares:
              7,549,044  shares  were  voted in favor of the  proposal,  833,869
              shares were voted  against the proposal,  32,253 shares  abstained
              and 6,341,987 shares were broker non-votes.

         2.   A  proposal  to  approve  an  amendment  to  the  Company's   1994
              Non-Employee  Directors' Stock Option Plan, as amended, to provide
              for  automatic  and  non-discretionary  option  grants to  certain
              directors  who  serve  on  certain  committees  of  the  Board  of
              Directors:  14,374,606 shares were voted in favor of the proposal,
              339,523  shares were voted  against the  proposal,  43,024  shares
              abstained and zero shares were broker non-votes.

         3.   A proposal to approve an amendment to the Company's Employee Stock
              Purchase  Plan, as amended,  to increase the  aggregate  number of
              shares of Common Stock  available for issuance by 200,000  shares:
              8,190,405  shares  were  voted in favor of the  proposal,  193,396
              shares were voted  against the proposal,  31,365 shares  abstained
              and 6,341,987 were broker non-votes.

         4.   The  ratification  of the  selection  of Ernst & Young  LLP as the
              Company's  independent auditors for the fiscal year ended December
              31, 1999:  14,709,526  shares were voted in favor of the proposal,
              26,900  shares were voted  against  the  proposal,  20,727  shares
              abstained and zero shares were broker non-votes.



                                       16

<PAGE>

                           PART II. OTHER INFORMATION

Item 5.       OTHER INFORMATION

              Dr.  Heinrich Kuhn resigned from the Company's  Board of Directors
              effective April 22, 1999,  coinciding with his retirement from the
              Max-Planck Society.

              Effective  April  19,  1999,  the  Company's  Board  of  Directors
              appointed Gerald H. Moller, Ph.D. and Samuel A. Hamad to its Board
              of Directors.

Item 6.       EXHIBITS AND REPORTS ON FORM 8-K

(a)           Exhibits

         Exhibit Number                      Description
         --------------                      -----------
              3.1          Restated Certificate of Incorporation (2)
              3.2(ii)      Bylaws of the Registrant (1)

              3.3          Certificate   of   Designation  of  Series  A  Junior
                           Participating Preferred Stock of the Registrant (3)

              10.85        Agreement and Plan of Merger, dated June 15, 1999, by
                           and among the Registrant, Pharmacia & Upjohn, Inc., a
                           Delaware  corporation,   and  University  Acquisition
                           Corp., a Delaware corporation. (4)

              10.86        Stock Option  Agreement,  dated June 15, 1999, by and
                           between Parent and the Registrant. (4)
         --------------
              (1)          Incorporated  by  reference to  identically  numbered
                           exhibits  filed in response to Item 16  "Exhibits" of
                           the Company's  Registration Statement on Form S-1, as
                           amended   (File   Number   33-77074),   which  became
                           effective October 4, 1994.
              (2)          Incorporated  by  reference to  identically  numbered
                           exhibits  filed in response to Item 14  "Exhibits" of
                           the Company's Annual Report of Form 10-K for the year
                           ended December 31, 1994.
              (3)          Filed as an  exhibit to the Form 8-K  Current  Report
                           dated  July  26,  1995  and  incorporated  herein  by
                           reference.
              (4)          Filed as an  exhibit to the Form 8-K  Current  Report
                           dated  June  15,  1999  and  incorporated  herein  by
                           reference.

(b)           Reports on Form 8-K
              SUGEN,  Inc.  filed a Current  Report on Form 8-K,  dated June 15,
              1999, with respect to its announcement that it had entered into an
              Agreement  and Plan of Merger on June 15,  1999 with  Pharmacia  &
              Upjohn,  Inc., a Delaware  corporation and University  Acquisition
              Corp.,  a Delaware  corporation  and wholly  owned  subsidiary  of
              Pharmacia & Upjohn, Inc.

              The  Company  filed a Current  Report on Form 8-K,  dated July 28,
              1999, with respect to its  announcement  of its financial  results
              for the quarter ended June 30, 1999.





                                       17

<PAGE>

                                   SIGNATURES

Pursuant to the  requirements  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.


Date:   August 10, 1999                      SUGEN, Inc.
       ---------------------------------




By:     /s/ Stephen Evans-Freke              By:    /s/ James L. Knighton
       ---------------------------------           -----------------------------
       Stephen Evans-Freke                         James L. Knighton
       Chairman of the Board and                   Senior Vice President and
       Principal Executive Officer                 Principal Financial Officer








                                       18
<PAGE>

                                  SUGEN, Inc.

                                  EXHIBIT INDEX


      Exhibit Number                      Description
      --------------                      -----------

         3.1             Restated Certificate of Incorporation (2)
         3.2(ii)         Bylaws of the Registrant (1)
         3.3             Certificate   of   Designation   of   Series  A  Junior
                         Participating Preferred Stock of the Registrant (3)
         10.85           Agreement  and Plan of Merger,  dated June 15, 1999, by
                         and among the Registrant,  Pharmacia & Upjohn,  Inc., a
                         Delaware corporation, and University Acquisition Corp.,
                         a Delaware corporation.(4)
         10.86           Stock Option  Agreement,  dated June 15,  1999,  by and
                         between Parent and the Registrant. (4)
      --------------
         (1)             Incorporated  by  reference  to  identically   numbered
                         exhibits filed in response to Item 16 "Exhibits" of the
                         Company's   Registration  Statement  on  Form  S-1,  as
                         amended (File Number 33-77074),  which became effective
                         October 4, 1994.
         (2)             Incorporated  by  reference  to  identically   numbered
                         exhibits filed in response to Item 14 "Exhibits" of the
                         Company's Annual Report of Form 10-K for the year ended
                         December 31, 1994.
         (3)             Filed as an  exhibit  to the Form  8-K  Current  Report
                         dated  July  26,  1995  and   incorporated   herein  by
                         reference.
         (4)             Filed as an  exhibit  to the Form  8-K  Current  Report
                         dated  June  15,  1999  and   incorporated   herein  by
                         reference.













                                       19

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE COMPANY'S
FORM  10-Q FOR THE SIX  MONTHS  ENDED  JUNE 30,  1999  AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                   1000

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   JUN-30-1999
<CASH>                                              18,710
<SECURITIES>                                        28,897
<RECEIVABLES>                                            0
<ALLOWANCES>                                             0
<INVENTORY>                                              0
<CURRENT-ASSETS>                                    49,532
<PP&E>                                              15,447
<DEPRECIATION>                                       7,141
<TOTAL-ASSETS>                                      59,975
<CURRENT-LIABILITIES>                               28,675
<BONDS>                                                  0
                                    0
                                              0
<COMMON>                                           162,436
<OTHER-SE>                                        (181,961)
<TOTAL-LIABILITY-AND-EQUITY>                        59,975
<SALES>                                                  0
<TOTAL-REVENUES>                                     6,747
<CGS>                                                    0
<TOTAL-COSTS>                                            0
<OTHER-EXPENSES>                                    33,105
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                  15,500
<INCOME-PRETAX>                                    (47,876)
<INCOME-TAX>                                             0
<INCOME-CONTINUING>                                (47,876)
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                       (47,876)
<EPS-BASIC>                                        (2.85)
<EPS-DILUTED>                                        (2.85)


</TABLE>


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