SERAGEN INC
10-Q, 1997-08-14
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                          Seragen, Inc.

                            Form 10-Q

                Ref: \home\sml\wp\sec\97SEC-Q2.asc


                         Date:    August 11, 1997
                         Version: 
                         Time:    12:4p<PAGE>

                             UNITED STATES
                  SECURITIES AND EXCHANGE COMMISSION
                        Washington, D.C. 20549


                               Form 10-Q
     
     
     
     Quarterly Report Pursuant to Section 13 or 15(d)
          of the Securities Exchange Act of 1934
                              
     
     
   For Quarter Ended   June 30, 1997     Commission file number   0-19855      
                      ______________                             ________


                               SERAGEN, INC.                       
                              ______________
            (Exact name of registrant as specified in its charter)


                  Delaware                        04-2662345
                 __________                      ____________
    (State or other jurisdiction of             (I.R.S. Employer
    incorporation or organization)              Identification No.)


     97 South Street, Hopkinton, MA                     01748
    ________________________________                   _______
   (Address of principal executive offices)          (Zip Code)

                                (508) 435-2331
                                _______________
            (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 such filing requirements for the past 90 days.

                                                   Yes   X     No
                                                        ___       ___

   20,205,565 shares of Common Stock, par value $.01, were outstanding on
   August 11, 1997.
   
<PAGE>
<PAGE>

                             UNITED STATES
                  SECURITIES AND EXCHANGE COMMISSION
                        Washington, D.C. 20549


                               Form 10-Q
     
     
     
     Quarterly Report Pursuant to Section 13 or 15(d)
          of the Securities Exchange Act of 1934
                              
     
     
   For Quarter Ended   June 30, 1997     Commission file number   0-19855      
                      ______________                             ________


                               SERAGEN, INC.                       
                              ______________
            (Exact name of registrant as specified in its charter)


                  Delaware                        04-2662345
                 __________                      ____________
    (State or other jurisdiction of             (I.R.S. Employer
    incorporation or organization)              Identification No.)


     97 South Street, Hopkinton, MA                     01748
    ________________________________                   _______
   (Address of principal executive offices)          (Zip Code)

                                (508) 435-2331
                                _______________
            (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 such filing requirements for the past 90 days.

                                                   Yes   X     No
                                                        ___       ___

   20,205,565 shares of Common Stock, par value $.01, were outstanding on
   August 11, 1997.
   
<PAGE>


<PAGE>
                              SERAGEN, INC.
   
                                 INDEX




                                                                       Page
                                                                       ____
PART I - FINANCIAL INFORMATION
______________________________

Item 1 - Financial Statements
         Balance Sheets  
         December 31, 1996 and June 30, 1997 . . . . . . . . . . . .      3


         Statements of Operations
         Three and Six Months Ended June 30, 1996 and 1997 . . . . .      4
     
     
         Statements of Cash Flows
         Six Months Ended June 30, 1996 and 1997 . . . . . . . . . .      5
     
     
         Notes to Financial Statements . . . . . . . . . . . . . . .      6



Item 2 - Management's Discussion and Analysis of 
         Financial Condition and Results of Operations . . . . . . .      13




PART II - OTHER INFORMATION
___________________________
     
Item 1 -  Legal Proceedings (None)


Item 2 -  Changes in Securities . . . . . . . . . . . . . . . . . . .     20


Item 3 -  Defaults upon Senior Securities . . . . . . . . . . . . . .     20


Item 4 -  Submission of Matters to a Vote of Security Holders (None)


Item 5 -  Other Information (None) 


Item 6 -  Exhibits and Reports on Form 8-K. . . . . . . . . . . . . .     20

Signatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     22 


                                   -2-
<PAGE>
<TABLE>

                                                           SERAGEN, INC.
                                                          BALANCE SHEETS
                                   
<CAPTION>



        Assets                                                                   December 31,         June 30, 1997
                                                                                   1996                (Unaudited)  
                                                                                 ____________         _____________ 
<S>                                                                             <C>                  <C> 
Current assets:
   Cash and cash equivalents . . . . . . . . . . . . . . . . . . . .             $  1,548,392          $  2,078,750
   Restricted cash . . . . . . . . . . . . . . . . . . . . . . . . .                  610,318               610,318
   Contract receivable . . . . . . . . . . . . . . . . . . . . . . .                  485,261               512,126
   Unbilled contract receivable. . . . . . . . . . . . . . . . . . .                  833,983               773,866
   Prepaid expenses and other current assets . . . . . . . . . . . .                  285,356                97,613
                                                                                    __________              _______
                      Total current assets . . . . . . . . . . . . .                3,763,310             4,072,673



Property and equipment, net. . . . . . . . . . . . . . . . . . . . .                4,604,115             4,163,141
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . .                   77,183                38,239
                                                                                    _________              ________
                      Total assets . . . . . . . . . . . . . . . . .             $  8,444,608          $  8,274,053
                                                                                  ============          ===========

               Liabilities and Stockholders' (Deficit)
Current liabilities:
     Accounts payable. . . . . . . . . . . . . . . . . . . . . . . .                1,111,477                927,444
     Current maturities of long-term debt. . . . . . . . . . . . . .                   37,418                    -
     Deposits received from Boston University . . . . . . . . . . . .                       -              7,899,739
     Accrued expenses. . . . . . . . . . . . . . . . . . . . . . . .                3,177,467              4,034,040
     Preferred stock redemption liability  . . . . . . . . . . . . .                1,236,753              1,122,619
     Short-term obligation.. . . . . . . . . . . . . . . . . . . . .                4,128,097                800,000
                                                                                    _________              _________
                      Total current liabilities. . . . . . . . . . .                9,691,212             14,783,842
                                                                                    ________               _________


Non-current liabilities:
     Lilly contract obligation . . . . . . . . . . . . . . . . . . .                1,200,000              1,200,000
     Long-term obligation. . . . . . . . . . . . . . . . . . . . . .                        -              1,450,000
     Canadian affiliate put option liability . . . . . . . . . . . .                2,400,000              2,400,000
                                                                                    _________               ________
                      Total non-current liabilities. . . . . . . . .                3,600,000              5,050,000
                                                                                     ________               ________

Commitments and contingencies
Stockholders' (deficit);
     Preferred stock, $.01 par value; 5,000,000 shares authorized
     Convertible preferred stock, Series A,$.01 par value; issued and
     outstanding 3,105 and 1,500 shares atDecember 31,1996 and
     June 30,1997, respectively, at liquidation preference . . . . . . .               2,015,522                508,059
     Convertible preferred stock, Series B,$.01 par value; issued and
     outstanding 23,800 and 23,800 at December 31, 1996, and June
     30,1997, respectively, at liquidation preference . . . . . . . . . .             23,800,000             23,800,000
     Convertible preferred stock, Series C,$.01 par value; issued and
     outstanding 5,000 and 5,000 at December 31,1996, and June
     30,respectively, at liquidation preference . . . . . . . . . . . . .              5,100,000              5,300,000
     Common stock, $.01 par value;70,000,000 shares authorized;
     issued 17,199,458 and 20,034,050 shares at December
     31,1996 and June 30, 1997, respectively . . . . . . . . . . . . .                171,994                200,340
     Additional paid in capital. . . . . . . . . . . . . . . . . . . .            151,323,022            154,154,807
     Accumulated deficit . . . . . . . . . . . . . . . . . . . . . . .           (187,254,811)          (195,520,664)
                                                                                  ___________            ___________
                                                                                   (4,844,273)           (11,557,458)

     Less-treasury stock (777 shares at cost at December 31,1996 and 
     June 30, 1997, respectively) . . . . . . . . . . . . . . . . . .               . (23,331)                (2,331)
                                                                                  ___________            ____________ 
                       Total stockholders' (deficit)  . . . . . . . .              (4,846,604)           (11,559,789)
                       Total liabilities and stockholders' (deficit).               8,444,608              8,274,053
                                                                                  =============         =============

                          The accompanying notes are an integral part of the financial statements.
</TABLE>

                                                          -3-

<PAGE>


<TABLE>


                                                       SERAGEN, INC.
                                                  STATEMENT OF OPERATIONS
                                                        (Unaudited)
<CAPTION>

                                                                  For the three months           For the six months
                                                                     ended June 30,                ended June 30,
                                                                 ____________________           ____________________
                                                                  1996            1997           1996          1997
                                                                 ______________________        _____________________
<S>                                                             <C>             <C>            <C>           <C>

Revenue:
 Contract revenue and license fees. . . . . .                $  6,247,250       $ 1,247,822    $ 7,746,242  &  2,159,447
                                                                _________         _________      _________     _________     
Operating expenses:
 Cost of contract revenue. . . . . . . . . .                    1,194,253         1,247,822      2,593,245     2,129,856 
 Research and development. . . . . . . . . .                    3,302,357         3,285,185      6,875,331     5,800,166 
 General and administrati. . . . . . . . . .                    3,209,037         1,408,916      4,570,393     2,600,579
                                                              ____________       ___________    ___________   ___________
                                                                7,705,647         5,941,923     14,038,969    10,530,601
                                                               _________        _________     __________   __________

            Loss from operations . . . . . .                   (1,458,397)       (4,694,101)    (6,292,727)   (8,371,154)


Loss incurred in connection withCanadian
affiliate . . . . . . . . . . . . . . . . .                      (471,561)                -     (1,641,969)            - 
Interest income. . . . . . . . . . . . . . .                       25,454            14,761         41,109        29,464 
Interest expense . . . . . . . . . . . . .                       (818,444)                -     (1,612,419)     (172,366)
                                                                  _______         _________      _________     _________
                                                                       
            Net loss before extraordinary item. .              (2,722,948)       (4,679,340)    (9,506,006)   (8,514,056)
                                                                _________         _________      __________    _________
                                                                       
Etraordinary income. . . . . . . . . . . .                             -         (2,050,000)             -    (2,050,000)
                                                                _________         _________      _________     _________

            Net loss. . . . . . . . . . .                      (2,722,948)       (2,629,340)    (9,506,006)   (6,464,056)
                                                                _________         _________      _________     _________

Preferred stock dividends and accretion. . .                       26,667         1,081,094         26,667     1,801,797

Net loss applicable to common      
stockholders  . . . . . . . . . . . . . . . . . .            $ (2,749,615)     $ (3,710,434)  $ (9,532,673) $ (8,265,853)
                                                             =============     ============   ============ ==============


Net loss per common share..  . . . . . . . .             $      (0.17)     $     (0.19)   $      (0.57) $      (0.44)
                                                             =============     ============    ===========   ============        
               
Weighted average common shares used in
computing net loss per share. . .. . . . . . .               16,607,713       19,823,618     16,582,940    18,885,360
                                                             =============     ============   ============ =============
                                                                                                                        






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

</TABLE>
                                                       -4-

<PAGE>





<TABLE>                                                SERAGEN, INC.
                                                  STATEMENTS OF CASH FLOWS
                                                        (Unaudited)
<CAPTION>

                                                                               For the six months
                                                                                 ended June 30,
                                                                               ___________________
                                                                             1996              1997
                                                                          ___________   ___________
<S>                                                                         <C>               <C> 

Cash flows from operating activities:
 Net loss  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        (9,506,006)       (6,464,056)
 Adjustments to reconcile net loss to net cash used in 
 operating activities:
 Depreciation and amortization. . . . . . . . . . . . . . . . . . .            463,651           464,293 
 Loss incurred in connection with Canadian affiliate . . . . . . . .         1,641,969                 -
 Gain/loss on disposal of property and equipment. . . . . . . . . .                  -             2,491 
 Amortization of discount on long-term debt . . . . . . . . . . . .            343,807           171,903
 Extraordinary item. . . . . . . . . . . . . . . . . . . . . . . . .                 -        (2,050,050)
 Amortization of prepaid interest . . . . . . . . . . . . . . . . .            520,625                 -
 Amortization of debt issuance costs. . . . . . . . . . . . . . . .             83,045                 -
 Non-cash charge for issuance of common shares. . . . . . . . . . .                  -           800,000

Changes in operating assets and liabilities:
 Contract receivable. . . . . . . . . . . . . . . . . . . . . . . .           (224,159)          (26,865)
 Unbilled contract receivable . . . . . . . . . . . . . . . . . . .           (275,487)           60,117
 Prepaid expenses and other current assets . . . . . . . . . . . . .           (32,791)          187,744
 Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . .           (129,993)         (184,032)
 Deferred commission. . . . . . . . . . . . . . . . . . . . . . . .          2,060,000                 -
 Accrued commission payable . . . . . . . . . . . . . . . . . . . .           (300,000)                -
 Accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . .            126,170          (306,768)
 Deferred revenue. . . . . . . . . . . . . . . . . . . . . . . . . .        (5,000,000)                -
                                                                             __________        _________
Net cash (used in) provided by  operating activities . . . . . . . .       (10,229,169)       (7,345,173)
                                                                            __________         _________

Cash flows from investing activities:
 Purchases of property and equipment . . . . . . . . . . . . . . . .          (296,489)          (25,809)
 Decrease in other assets. . . . . . . . . . . . . . . . . . . . . .               944            38,944
                                                                              ________          ________
Net cash (used in) provided by investing activities . . . . . . . . .          (295,545)          13,135 
                                                                             ___________        ________

Cash flows from financing activities:
 Net proceeds from common stock issuances. . . . . . . . . . . . . . .        3,929,642               75
 Purchases of treasury stock . . . . . . . . . . . . . . . . . . . . .          (76,875)               -
 Proceeds from issuance of long-term debt. . . . . . . . . . . . . . .       11,300,000                -
 Repayments of long-term debt. . . . . . . . . . . . . . . . . . . . .         (110,105)         (37,418)
 Debt and preferred stock issuance costs . . . . . . . . . . . . . . .          (64,156)               -
 Deposits received from Boston University . . . . . . . . . . . . . .                 -       (7,899,739)               -
                                                                              __________        __________
Net cash (used in) provided by financing activities . . . . . . . . .        14,978,506         7,862,396
                                                                             __________         _________

Net increase (decrease) in cash and cash equivalents  . . . . . . . .         4,453,792          530,358
Cash and cash equivalents, beginning of period . . . . . . . . . . . .          435,460        1,548,392
                                                                              __________        ________
Cash and cash equivalents, end of period . . . . . . . . . . . . . . .    $   4,889,252     $  2,078,750
                                                                           ============     =============
Supplemental disclosures of cash flows information:
 Cash paid for interest. . . . . . . . . . . . . . . . . . . . . . . .    $     367,495     $        463
                                                                           ============     =============
Supplemental non cash activities:  
 Conversion of series A preferred stock to common stock . . . . . . . .   $           -     $   2,060,056
 Preferred stock diidends. . . . . . . . . . . . . . . . . . . . . . . .  $           -     $     638,458
 Issuance of Common Stock to Lilly . . . . . . . . . . . . . . . . . . .  $           -     $     800,000








                             The accompanying notes are an integral part of the financial statements.
</TABLE>

                                -5-

<PAGE>
                              SERAGEN, INC.
                     NOTES TO FINANCIAL STATEMENTS
                              (Unaudited)


1.  Basis of Presentation

     The accompanying financial statements are unaudited and have been
prepared by the Company in accordance with generally accepted accounting
principles.

     Certain information and footnote disclosure normally included in the
Company's audited annual financial statements has been condensed or omitted in
the Company's interim financial statements.  In the opinion of management, the
interim financial statements reflect all adjustments (consisting of normal
recurring accruals) necessary for a fair representation of the results for the
interim periods presented.

     The results of operations for the interim periods may not necessarily be
indicative of the results of operations expected for the full year, although
the Company expects to incur a significant loss for the year ending December
31, 1997.  These interim financial statements should be read in conjunction
with the audited financial statements for the year ended December 31, 1996,
which are contained in the Company's most recent Annual Report on Form 10-K.

2.  Use of Estimates

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

3.  Loss Per Share

     In February 1997, the Financial Accounting Standards Board issued
Statement of Financial Accounting Standards No. 128, Earnings Per Share ("SFAS
No. 128").  SFAS No. 128 establishes standards for computing and presenting
earnings per share and applies to entities with publicly held common stock or
potential common stock.  This statement is effective for fiscal years ending
after December 15, 1997, and early adoption is not permitted.  When adopted,
the statement will not  require restatement of prior years' earnings per
share.  The Company will adopt this statement for its fiscal year ending
December 31, 1997.

4.  Amendment to Lilly Agreements

     On April 7, 1997, the Company entered into an amendment (the "Amendment")
to its Sales and Distribution Agreement and Development Agreement with Eli
Lilly and Company ("Lilly") pursuant to which Lilly had originally obtained
the development and marketing rights to the Company's lead molecule DAB389IL-2
("IL-2 Fusion Protein") for all cancer and certain non-cancer indications.
Under the terms of the Amendment, subject to certain limitations, Lilly
relinquished all other development and marketing rights to IL-2 Fusion Protein
for non-cancer indications, as well as rights to other molecules.  In
addition, Lilly agreed to pay to Ajinomoto Company, Inc. ("Ajinomoto") on
behalf of the Company $4.3 million: Lilly paid  $2.15 million to Ajinomoto for
a license granted by Ajinomoto directly to Lilly; and Lilly has agreed to pay,
subject to certain conditions, up to $2.15 million of the Company's $2.25
obligation to Ajinomoto under the Company's restructed agreement with
Ajinomoto (See Note 5).  Pursuant to the Amendment, Lilly is permitted to
credit $1.5 million of the amount paid by Lilly to Ajinomoto on behalf of the
Company against the next $1.5 million milestone payment that falls due from
Lilly to the Company under the Sales and Distribution Agreement between the
Company and Lilly on the submission by the Company of a U.S. Biologics License
Application ("BLA") for cutaneous T-cell lymphoma ("CTCL") to the Food and
Drug Administration ("FDA").  Lilly is not obligated to make any further

payments in respect of the Company's obligations to Ajinomoto if Lilly
terminates the Sales and Distribution Agreement between it and the Company as
a result of a failure by the Company to meet specified clinical, regulatory
and financial milestones and other requirements.  Among the relevant
milestones and requirements referenced in the preceding sentence are the


                                 -6-

<PAGE>

Company's obtaining commitments for $5.0 million of new investment capital by
July 1, 1997, and closing on the same by August 1, 1997, and the Company
obtaining $15.0 million of new investment capital by October 1, 1997.  On
July 31, 1997, the Company reported that it had obtained $5.0 million through
an agreement with U.S. Surgical Corporation (See Note 7).

     In exchange, the Company issued to Lilly in a private placement 1.0
million shares of its common stock.  The shares of common stock issued to
Lilly are valued at the closing price of the Company's Common Stock as
reported on Nasdaq on the date of issuance of the shares to Lilly, less a
discount of 20% to reflect a discount from the Nasdaq closing price because
the shares are not registered under the Securities Act of 1933.  In  the
quarter ended June 30, 1997, the Company has valued the 1.0 million shares of
common stock issued to Lilly at $800,000 based on the April 7, 1997 Nasdaq
closing price of $1.00, less 20%, and has recorded it as research and
development expense. 

5.  Amendment to Ajinomoto License Agreement

     On June 1, 1997, the Company restructured (the "Restructuring") its
License Agreement with Ajinomoto pursuant to which Ajinomoto had granted the
Company worldwide rights to certain  (IL-2) gene patents owned by the Japanese
Foundation for Cancer Research and Ajinomoto for potential use in the
development of the Company's lead product, IL-2 Fusion Protein.  Prior to the
Restructuring, the Company was obligated to pay Ajinomoto a license fee of
$4.3 million payable upon the occurrence of certain specified events, but no
later than March 31, 1997 (previously extended by agreement of Ajinomoto to
May 31, 1997); and royalties ranging from 2% to 4% on sales of the licensed
product by the Company or its sublicensees, but with minimum royalties of
$100,000 for the third year of the agreement, $200,000 for the fourth year of
the agreement, and $300,000 for the fifth and following years of the
agreement.  In addition, prior to the Restructuring, the rights granted by
Ajinomoto to the Company pursuant to the License Agreement were exclusive.
Under the terms of the Restructuring, the future license fees payable by the
Company to Ajinomoto were reduced to the following amounts: a $2.25 million
fee payable in the amount of $800,000 by June 30, 1998, or approval by the FDA
of a BLA filed by the Company for the licensed product, whichever comes first,
in the amount of $800,000 by June 30, 1999, and in the amount of $650,000 by
March 31, 2000; and a reduced royalty of 1% on end-user net sales of the
licensed product by the Company or its sublicenses.  The Company amended its
agreements with Lilly whereby Lilly will pay license fees to Ajinomoto on
behalf of the Company, subject to certain limitations (See Note 4).  The
Restructuring provides that the license granted by Ajinomoto to the Company
will be non-exclusive.  Accordingly, in the quarter ended June 30, 1997, the
Company reduced its obligation to Ajinomoto from $4.3 million to $2.25 million
and recorded extraordinary income of $2,050,000 for the reduction of this
liability.

 6.   Sale of Manufacturing and Clinical Operations to Boston University

     On February 14, 1997, the Company entered into an asset purchase
agreement (the "Asset Purchase Agreement") to sell its manufacturing and
clinical operations facilities to Boston University or a designated affiliate
for $5.0 million.  The closing of the transaction is subject to, among other
things, approval by the Company's stockholders.  Boston University has paid
the Company $4.5 million as a deposit and, from the time of execution of the
agreement, has assumedresponsibility for the facility's operations, including
responsibility for operating costs.  The Company is permitted to use the
purchase price and operating cost deposits to fund its current operations,
although as of June 30, 1997, such deposit was recorded as a liability.

     Simultaneously with the execution of the Asset Purchase Agreement, the
Company entered into a service agreement ("the Service Agreement") with Boston
University providing for the purchase by the Company of certain services
related to product research, development, manufacturing, clinical trials,
quality control, and quality assurance.  The Service Agreement expires in
January 1999, and is subject to certain early termination provisions,
including the option of Boston University to terminate the agreement if losses
during a contract year exceed $9.0 million and the Company does not reimburse
Boston University for the losses in excess of $9.0 million.  The Service
Agreement may be renewed for two successive one-year terms at the option of
the Company. The Company has the option to repurchase the assets comprising
the manufacturing and clinical operations facilities.  The Company has agreed
to pay Boston University fees of approximately $5.5 million and $6.6 million
in years 1 and 2 of the Service Agreement, respectively.  The fees can be


                                   -7-

<PAGE>
increased or decreased by agreement of the parties, but may not be reduced to
less than $4.3 million per contract year.  The Service Agreement is expected
to reduce substantially the Company's operating costs in research and
development, as the Company will be contracting solely for the services that
the Company requires for clinical and manufacturing purposes.  The Company
will give effect to this transaction in its financial statements after
closing.

  At the closing, most of the Company's employees involved in the
manufacturing and clinical operations will become employees of Boston
University.  Both the purchase price and operating cost deposits are subject
to refund to Boston University in the event that conditions for closing are
not met. Upon the closing of this transaction, the Company will account for
the gain and the sale of the operating facility and the excess of the
reimbursed operating costs over the amount due to Boston University, pursuant
to the Service Agreement dated as of February 14, 1997 for the period from
February 14, 1997, until the closing of the transaction, as a contribution of
capital.  As of June 30, 1997, the net amount due to Boston University from
the Company in respect of the operating facility's operating expenses for the
period from February 14, 1997 to June 30, 1997, was approximately $1,215,160.

7. Subsequent Event

     On July 31, 1997, the Company entered into an evaluation license and
option agreement (the "License Agreement") with United States Surgical
Corporation ("USSC") granting USSC an option on worldwide rights to Seragen's
DAB389EGF ("EGF Fusion Protein") for restenosis in cardiovascular
applications.  USSC has acquired this option in exchange for an initial
payment to Seragen of $5.0 million.  Under the terms of the option, USSC is
entitled to acquire an exclusive license to the technology, at any time during
a 15-month evaluation period, upon the payment to Seragen of an additional
$5.0 million.  In addition, the Company issued to USSC a warrant for the
purchase of 500,000 shares of Seragen Common Stock at a purchase price of
$.5625 per share, the closing sale price for the shares of the Company's
Common Stock on the date prior to the date the warrant was issued.  The
Company will value this warrant and record it as a charge to general and
administrative expense in the quarter ending September 30, 1997.  USSC has
agreed to fund trials associated with the development of EGF Fusion Protein
for restenosis. If the option is exercised, milestone payments to Seragen by
USSC could amount to $22.5 million in addition to royalties upon commercial
sales by USSC.  In the event USSC chooses not to exercise the option, the
License Agreement terminates; and  in exchange, USSC will receive $5.0
million in Seragen Common Stock valued at the average of the closing prices of
Seragen Common Stock (i) for the ten trading days preceding the date of the
License Agreement or (ii) for the ten trading days preceding the date on which
USSC chooses not to exercise the option, whichever is lower. 

8.  Pro Forma Financial Statements

     The following unaudited pro forma financial information reflects the
Company's balance sheet as of June 30, 1997, and the Company's historical
statement of operations for the six months ended June 30, 1997, respectively,
assuming the transactions described above were consummated on January 1, 1997. 
The unaudited pro forma financial statements do not purport to be indicative
of the results which would actually have been reported if the transactions had
been effected on that date or which may be reported in the future.

                                 -8-

<PAGE>


<PAGE>
                            
<TABLE>                                        SERAGEN, INC.
                                    UNAUDITED PRO FORMA BALANCE SHEET
                                            AS OF JUNE 30, 1997
<CAPTION>                                
                                
                         Assets                                         Historical     Adjustments      Pro Forma
                                                                  __________     ___________     __________                  <S>   
                                                          <C>              <C>             <C>
Current assets:
   Cash and cash equivalents . . . . . .                             $   2,078,750   $   (715,160) a) $ 1,363,590
   Restricted cash . . . . . . . . . . . . . . . . . . . . . .             610,318              -         610,318
   Contract receivable  . . . . . . . . . . . . . . . . . . .              512,126              -         512,126
   Unbilled contract receivable. . . . . . . . . . . . . . . .             773,866              -         773,866
   Prepaid expenses and other current assets . . . . . . . . .              97,613              -          97,613
                                                                        __________     ___________      _________
                        Total current assets . . . . . . .               4,072,673       (715,160)      3,357,513 

Property and equipment, net. . . . . . . . . . . . . . . . . . .         4,163,141     (4,148,843) (b)     14,298
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . .            38,239              -          38,239
                        Total assets . . . . . . . . . . .           $   8,274,053   $ (4,864,003)    $ 3,410,050
                                                                         ==========     ===========      ==========

            Liabilities and Stockholders' (Deficit)
Current liabilities:
   Accounts payable. . . . . . . . . . . . . . . . . . . . . .             927,444              -         927,444
   Deposit received from Boston University . . . . . . . . . .           7,899,739     (7,899,739) (c)          -
   Accrued expenses. . . . . . . . . . . . . . . . . . . . . .           4,034,040              -       4,034,040
   Preferred stock redemption liability. . . . . . . . . . . .           1,122,619              -       1,122,619
   Short-term obligation . . . . . . . . . . . . . . . . . . .             800,000              -         800,000 
                                                                         _________      _________       _________
                         Total current liabilities. . . . .             14,783,842     (7,899,739)      6,884,103
                                                                        __________      _________       _________
Non-current liabilities:
   Lilly contract obligation . . . . . . . . . . . . . . . . .           1,200,000              -       1,200,000
   Long-term obligation. . . . . . . . . . . . . . . . . . . .           1,450,000              -       1,450,000
   Canadian affiliate put option liability . . . . . . . . . .           2,400,000              -       2,400,000
                                                                         _________      __________      _________
                        Total non-current liabilities. . .               5,050,000              -       5,050,000
                                                                         _________      __________      _________
Commitments and contingencies
Stockholders' (deficit);
  Preferred stock, $.01 par value; 5,000,000 shares authorized 
  Convertible preferred stock, Series A, $.01 par value; issued
  and outstanding 1,500 shares at June 30, 1997, $151,406
  liquidation preference. . . . . . . . . . . .                            508,059              -          508,059
  Convertible preferred stock, Series B, $.01 par value; issued
  and outstanding 23,800 shares at June 30, 1997, $23,800,000 
  liquidation preference. . . . . . . . . .                             23,800,000              -       23,800,000
  Convertible preferred stock, Series C, $.01 par value; issued
  and outstanding 5,000 shares at June 30, 1997, $5,300,000
  liquidation preference . . . . . . . . . . . . . . . .                 5,300,000              -       5,300,000
  Common stock, $.01 par value; 70,000,000 shares authorized;
  issued 20,034,050 shares at June 30, 1997 . . . . . . . . . .            200,340              -          200,340
Additional paid in capital . . . . . . . . . . . . . . . . . .         154,154,807     (3,035,736) (d) 157,190,543
Accumulated deficit. . . . . . . . . . . . . . . . . . . . . .        (195,520,664)             -     (195,520,664)
                                                                       ___________      _________      ___________
                                                                       (11,557,458)     3,035,736       (8,521,722)
Less-treasury stock (777 shares at cost at June 30, 1997). . .             ( 2,331)             -           (2,331)
                                                                        __________      _________        __________
                 Total stockholders' (deficit)  . .                    (11,559,789)     3,035,736       (8,524,053)
                                                                        __________      _________        __________
                 Total liabilities and stockholders' (deficit).       $  8,274,053  $  (4,864,003)  $     3,410,050
                                                                       ============    ============    =============
   
                                
</TABLE>                                



                                -9-

<PAGE>




                                
                         SERAGEN, INC.
               UNAUDITED PRO FORMA BALANCE SHEET
                      AS OF JUNE 30, 1997
                                
   The following pro forma adjustments are required to reflect the sale of the
majority of the Company's property and equipment, the assignment of certain
capital and operating leases to Boston University and the Company's Service
Agreement with Boston University as discussed in Note 8.  The net book value
and estimated disposition costs are based on the estimated fair value, as
determined by the management of the Company.  Such allocation will be revised
to reflect changes in assets through the date of closing and the determination
of actual disposition costs.

Notes to Pro Forma Balance Sheet

(a)  Reflects (i) $500,000 due to the Company from Boston
     University for the remaining purchase price and
     (ii) the net amount due to Boston University of $1,215,160.      $715,160
   
(b)  Reflects a reduction in property and equipment for the net
     book value of assets sold.                                     $4,148,843

(c)  Reflects the Boston University deposits of $4.5 million for
     the purchase price and the $3,399,739 for the operating costs
     as non-refundable payments upon closing.                       $7,899,739

(d)  Reflects (i) the excess of the purchase price over the net
     book value of the assets sold of $851,157 and (ii) the
     difference between the amount reimbursable from Boston 
     University and the amounts due to Boston University under
     the Service Agreement of $2,184,579.                           $3,035,736
               

                                 -10-

<PAGE>







<TABLE>                                  SERAGEN, INC.
                          UNAUDITED PRO FORMA STATEMENT OF OPERATIONS
                            FOR THE SIX MONTHS ENDED JUNE 30, 1997
<CAPTION>


                                
                                                           Historical    Adjustments        Pro Forma
                                                          __________     ___________      ___________
<S>                                                      <C>           <C>             <C>                               
Revenue:
 Contract revenue and license fees . . . .              $  2,159,447              -      $  2,159,447

Operating expenses:
 Cost of contract revenue and license fees. . .            2,129,856                        2,129,856
 Research and development. . . . . . .                     5,800,166     (4,662,280) (a)    1,137,886
 Contract R&D with affiliate . . . . . . . . . . . .                      2,737,979  (b)    2,737,979
 General and administrative. . . . . . .                   2,600,579       (957,353) (a)    1,643,226
                                                           _________      __________        _________
                                                          10,530,601     (2,881,654)        7,648,947
                                                          _________       _________         _________
     Loss from operations. . . . . . . . . . . . . .      (8,371,154)     2,881,654        (5,489,500)

Loss incurred in connection
with Canadian affiliate. . . . . . . . . . . . . . . .             -              -                 -
Interest income. . . . . . . . . . . . . . . . . . . .        29,464              -            29,464
Interest expense . . . . . . . . . . . . . . . . . . .       172,366             -         (172,366)
                                                          __________      __________        __________

     Net loss before extraordinary item. . . . . . . .    (8,514,056)     2,881,654        (5,632,402)
                                                         ___________      ________          _________

Extraordinary income. . . . . . . . . . . . . . . . .     (2,050,000)             -        (2,050,000)
                                                           __________     _________         __________

     Net loss. . . . . . . . . . . . . . . . . . . .      (6,464,056)     2,881,654        (3,582,402)
                                                           ==========     =========         ==========

Preferred stock dividends. . . . . . . . . . . . . .       1,801,797              -         1,801,797
                                                         ___________     ___________       ___________

Net loss applicable to common stockholders             $  (8,265,853)  $  2,881,654     $  (5,384,199)
                                                          ===========    ===========       ============

Net loss per common share. . . . . . . . . . . . . . . $        0.44   $          -     $        0.27
                                                          ===========    ===========       ============

Weighted average common shares used
in computing net loss per share. . . . . . . . . . .      18,885,360              -        18,885,360
                                                         ============    ===========       =============                      
                                 
</TABLE>
                                                               
Historically, research and development and general and administrative
expenses have included the costs of the manufacturing and clinical operations
facility which will be acquired by Boston University. The historical
costs incurred by the Company included both the cost of the research and
development required by the Company's ongoing research and development
programs as well as the cost of excess operating capacity which Boston
University will utilize to enter into contract research arrangements with
third parties.  The following  pro forma adjustments reflect the sale of the
manufacturing and clinical operations to Boston University as if it had
occurred in the beginning of the period.  The adjustments include the
historical cost of the specific employees to be transferred to Boston
University or terminated upon the closing of the sale and their related
benefits cost, the historical cost of the facility leases assumed by Boston
University and the other costs specific to the manufacturing and clinical
operations sold to Boston University.  The pro forma adjustments will be
revised to reflect changes in assets through the date of closing and the
determination of actual disposition costs.

                                -11-

<PAGE>

                            SERAGEN, INC.
             UNAUDITED PRO FORMA STATEMENT OF OPERATIONS
                FOR THE SIX MONTHS ENDED JUNE 30, 1997
                                
                                
                                
Notes to Pro Forma Statement of Operations

(a) Reflects the historical cost of the manufacturing and
    clinical operations facilities acquired by Boston University.
    Includes the historical cost of the specific employees to
    be transferred to Boston University upon closing, the historical
    cost of facility operating costs for the facility leases assumed
    by Boston University and other costs specific to the
    manufacturing and clinical operations to be acquired by Boston
    University.                                                     $5,619,633

(b) Reflects the contracted cost for the six months ended
    June 30, 1997 of research and development activities to
    be received under the Service Agreement with Boston
    University.                                                     $2,737,979


                            -12-

<PAGE>
<PAGE>
                            SERAGEN, INC.
                  MANAGEMENT'S DISCUSSION AND ANALYSIS OF
               FINANCIAL CONDTION AND RESULTS OF OPERATIONS




Overview

  Seragen is engaged in the discovery, research and development of
 pharmaceutical products for human therapeutic
 applications. Since 1985, the Company has focused substantially all of its
 efforts and resources on research and development of its fusion protein
 technology.  The Company's fusion proteins were developed using proprietary
 technology and have potential applications in a wide range of human diseases. 
 To date, the Company has not generated any revenues from the sale of fusion
 protein products, and the Company does not expect to receive any such
 revenues for several years.  The Company has generated no profit since its
 inception and expects to incur additional operating losses over the next 
 several years.
 
  In February 1997, the Company entered into an Asset Purchase Agreement to
 sell its manufacturing and clinical operations facilities to Boston
 University or a designated affiliate for $5.0 million and in connection
 therewith entered into a Service Agreement with Boston University pursuant to
 which Boston University will provide the Company with certain services
 related to product research, development, manufacturing, clinical trials,
 quality control and quality assurance. The terms of this transaction are
 discussed more fully below under "Liquidity and Capital Resources."
 
  On April 7, 1997, the Company entered into the Amendment to its Sales and
 Distribution Agreement and Development Agreement with Lilly pursuant to which
 Lilly had the development and marketing rights to the Company's lead
 molecule IL-2 Fusion Protein for all cancer and certain non-cancer
 indications. The terms of this transaction are discussed more fully below
 under "Liquidity and Capital Resources."

  On June 1, 1997, the Company entered into the Amendment to its License
 Agreement with Ajinomoto pursuant to which Ajinomoto granted the Company
 worldwide rights to certain IL-2 gene patents owned by the Japanese
 Foundation for Cancer Research and Ajinomoto for potential use in the
 development of the Company's lead product, IL-2 Fusion Protein.  The terms of
 this transaction are discussed more fully below under "Liquidity and Capital
 Resources."
  
  On July 31, 1997, the Company entered into an evaluation license and option
 agreement with USSC granting USSC an option on worldwide rights to the
 Company's EGF Fusion Protein for restenosis in cardiovascular applications. 
 USSC has acquired the option in exchange for an initial payment to the
 Company of $5.0 million.  The terms of this transaction are discussed more
 fully below under "Liquidity and Capital Resources."

 Results of Operations

  Three Months Ended June 30, 1997 and 1996.  The Company's net loss for the
 three-month period ended June 30, 1997 was $3.7 million compared to $2.7
 million for the period ended June 30, 1996.  The increase in the net loss
 during the second three months of 1997 was primarily due to a $5.0 million
 reduction in revenue in 1997 and an increase of $1.1 million in preferred
 stock dividends in 1997.  These increases to the net loss were partially
 offset by a decrease in 1997 in operating expenses of $1.8 million, a
 reduction in the loss incurred in connection with the Company's Canadian
 affiliate of $472,000 in 1997, a decrease of $818,000 in 1997 of interest
 expense and an extraordinary gain of $2.1 million reflecting the 
 restructuring of the Ajinomoto agreement in June 1997.

  The Company's revenues  for the three months ended June 30, 1997 and 1996 
 were $1.2 million and $6.2  million, respectively.  Excluding the 1996
 recognition of a $5.0 million  non-refundable payment associated with a 1996
 amendment to the Sales and  Distribution Agreement between the Company and
 Lilly, revenue was  substantially unchanged and consisted primarily of
 contract revenue from Lilly for certain development costs of IL-2 Fusion
 Proteinfor CTCL. 


                                  -12-
<PAGE>

 
                             SERAGEN, INC.
                MANAGEMENT'S DISCUSSION AND ANALYSIS OF
             FINANCIAL CONDITION AND RESULTS OF OPERATIONS


  Total operating expenses for the three months ended June 30, 1997 decreased
 by $1.8 million to $5.9 million in 1997 from $7.7 million in 1996.  The cost
 of contract revenue was substantially unchanged for the three-month period
 ended June 30, 1997 as compared to the same period in 1996.  Research and
 development expenses remained constant at $3.3 million in the three months
 ended June 30, 1997 in comparison to the three months ended June 30, 1996,
 however, there was an $800,000 increase in 1997 associated with the issuance
 of 1.0 million shares of Common Stock to Lilly in 1997. This increase was
 partially offset by $800,000 as a result of a reduction in the workforce and
 related expenses. General and administrative expenses decreased by $1.8
 million to $1.4 million in the second three months of 1997 as compared to
 $3.2 million in the second three months of 1996.  This decrease in 1997 was
 primarily due to the one-time charge in 1996 of $2.1 million for commission
 expense associated with a 1996 amendment to the Sales and Distribution
 Agreement between the Company and Lilly.  This decrease was partially offset
 by an increase in legal fees.

  The loss incurred in connection with the Company's Canadian affiliate
 decreased by $472,000 in the three months ended June 30, 1997 as compared to
 the three months ended June 30, 1996.  The Company believes the current
 maximum obligation to the Canadian affiliate is $2.4 million, which was
 accrued as of December 31, 1996.  Interest income decreased in the second
 quarter of 1997 as compared to the second quarter of 1996 reflecting lower
 cash balances.  Interest expense decreased by $818,000 in the second quarter
 of 1997 as compared to the second quarter of 1996 due to the elimination of
 the lines of credit in exchange for Series B Preferred Stock which occurred
 in July 1996.  The extraordinary income of $2.1 million in 1997 reflects the
 gain recorded in connection with the reduction in the amount payable to
 Ajinomoto as a result of the restructuring of the Ajinomoto license
 agreement.

  Preferred stock dividends and accretion increased by $1.1 million in the
 three months ended June 30, 1997 as compared to the three months ended June
 30, 1996.  This increase in 1997 is due to the accrual of dividends on the
 issuances of Series A Preferred Stock, Series B Preferred Stock and Series C
 Preferred Stock in May 1996, July 1996 and September 1996, respectively.  In
 addition, in the three months ended June 30, 1997, the Company recorded
 $356,653 representing the conversion discount on the Series A Preferred Stock
 conversions.

  Six Months Ended June 30, 1997 and 1996.  The Company's net loss for the
 six-month period ended June 30, 1997 was $8.3 million compared to $9.5
 million for the period ended June 30, 1996.  The decrease in the net loss
 during the six months ended June 30, 1997 was primarily due to a reduction in
 operating expenses of $3.5 million, a reduction in the loss incurred in
 connection with the Company's Canadian affiliate of $1.6 million, a decrease
 of $1.4 million in interest expense and an extraordinary gain of $2.1 million
 reflecting the restructuring of the Ajinomoto license agreement.  These
 decreases were partially offset by a $5.5 million reduction in revenue and an
 increase in preferred stock dividends of $1.8 million.

  The Company's revenues for the six months ended June 30, 1997 and 1996 were
 $2.2 million and $7.7 million, respectively.  Excluding the 1996 recognition
 of a $5.0 million non-refundable payment associated with a 1996 amendment to
 the Sales and Distribution Agreement between the Company and Lilly, revenue
 consisted primarily of contract revenue from Lilly for certain development
 costs of IL-2 Fusion Protein for CTCL.  Contract revenue from Lilly decreased
 in the six months ended June 30, 1997 by $500,000 primarily due to the
 completion of certain clinical data management milestones in 1996 and the
 winding down of patient enrollment in 1997 for a Phase III clinical trial
 for IL-2 Fusion Protein for CTCL.

  Total operating expenses for the six months ended June 30, 1997 decreased by
 $3.5 million to $10.5 million in 1997 from $14.0 million in 1996.  This
 decrease of $3.5 million was primarily due to a one-time charge in 1996 of
 $2.1 million for commission expense associated with a 1996 amendment to the
 Sales and Distribution Agreement between the Company and Lilly and partially
 due to actions taken as a result of management's decision in December 1996 to
 reduce operating expenses and streamline the Company's organization.   The
 cost of contract revenue was $2.1 million in the six months ended June 30,
 1997 as compared to $2.6 million in the six months ended June 30, 1996, a
 decrease of  $500,000, reflecting the completion of certain clinical data

                             -14-
<PAGE>

                                 SERAGEN, INC.
                   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                FINANCIAL CONDITION AND RESULTS OF OPERATIONS


 management milestones in 1996 and the winding down of patient enrollment in
 1997 for a Phase III clinical trial for IL-2 Fusion Protein for CTCL. 
 Research and development expenses decreased by $1.1 million to $5.8 million
 in the six months ended June 30, 1997 from $6.9 million for the six months
 ended June 30, 1996.  This decrease was primarily the result of a reduction
 in the workforce and related expenses of approximately $1.9 million.  This
 decrease was partially offset by an $800,000 charge associated with the
 issuance of 1.0 million shares of common stock to Lilly in 1997 in 
 conjunction with the Amendment.  General and administrative expenses
 decreased by $2.0 million to $2.6 million in the six months ended June 30,
 1997 as compared to $4.6 million in the six months ended June 30, 1996.  This
 decrease in 1997 was primarily due to the one-time charge in 1996 of $2.1
 million for commission expense associated with a 1996 amendment to the Sales
 and Distribution Agreement between the Company and Lilly and partially due to
 the reduction in workforce mentioned above.  This decrease was partially
 offset by an increase in legal fees.

  The loss incurred in connection with the Company's Canadian affiliate
decreased by $1.6 million in the six months ended June 30, 1997 as compared
to the six months ended June 30, 1996.  The Company believes the current
maximum obligation to the Canadian affiliate is $2.4 million, which was
accrued as of December 31, 1996.  Interest income was substantially unchanged
in the six months ended June 30, 1997 as compared to the six months ended June
30, 1996.  Interest expense decreased by $1.4 million to $172,000 in the six
months ended June 30, 1997 from $1.6 million in the six months ended June 30,
1996 due to the elimination of the lines of credit in exchange for Series B
Preferred Stock which occurred in July 1996.  The extraordinary gain of $2.1
million in 1997 reflects the gain recorded in connection with the reduction in
the amount payable to Ajinomoto as a result of the restructuring of the
Ajinomoto license agreement.

Preferred stock dividends and accretion increased by $1.8 million in the six
months ended June 30, 1997 as compared to the six months ended June 30, 1996. 
This increase in 1997 is due to the accrual of dividends on the issuances of
Series A Preferred Stock, Series B Preferred Stock and Series C Preferred
Stock in May 1996, July 1996 and September 1996, respectively.  In addition,
in the six months ended June 30, 1997, the Company recorded $356,653
representing the conversion discount on the Series A Preferred Stock
conversions.

Liquidity and Capital Resources

     As of June 30, 1997, the Company had approximately $2.1 million in cash
and cash equivalents, which was comprised of the remainder of the deposit made
by Boston University with respect to the operating facility's operating costs
of $3.4 million in connection with the sale of the Company's manufacturing and
clinical operations to Boston University.  Subsequent to June 30, 1997, the
Company received $5.0 million from UCSC pursuant to the License Agreement.  

     The Company expects to incur substantial additional research and
development expenses as it continues development of its fusion proteins.  The
Company also expects to incur substantial administrative and commercialization
expenses in the future.  The Company's continuing operating losses and
requirements for working capital will depend on many factors, including
progress in and costs associated with its research, pre-clinical and clinical
development efforts, and the level of resources which the Company must devote
to obtaining regulatory approvals to manufacture and sell its products.

     As of February 14, 1997, the Company entered into the Asset Purchase
Agreement to sell its manufacturing and clinical operations facilities to
Boston University or a designated affiliate for $5.0 million.  The closing of
the transaction is subject to, among other things, approval by the Company's
stockholders.  Boston University has paid the Company $4.5 million as a
deposit and, from the time of execution of the agreement, has assumed
responsibility for the facility's operations, including responsibility for
operating costs.  The Company is permitted to use the purchase price and
operating costs deposits to fund its current operations although, as of June
30, 1997, such deposit was recorded as a liability. The net book value of the
assets to be sold to Boston University was $4.2 million as of June 30,
1997.  These assets represent substantially all of the Company's property and

                                  -15-

<PAGE>

                                 SERAGEN, INC.
                   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                FINANCIAL CONDITION AND RESULTS OF OPERATIONS

equipment and consist primarily of leasehold improvements to the Company's
manufacturing facility, laboratory facilities and laboratory equipment.


     Simultaneously with the execution of the Asset Purchase Agreement, the
Company entered into the Service Agreement with Boston University providing
for the purchase by the Company of certain services related to product
research, development, manufacturing, clinical trials, quality control, and
quality assurance.  The Service Agreement expires in January 1999 and is
subject to certain early termination provisions,  including the option of
Boston University to terminate the agreement if losses during a contract year
exceed $9.0 million and the Company does not reimburse Boston University for
the losses in excess of $9.0 million.  The Service Agreement may be renewed
for two successive one-year terms at the option of the Company. The Company
has the option to repurchase the assets comprising the manufacturing and
clinical operations facilities.  The Company has agreed to pay Boston
University fees of approximately $5.5 million and $6.6 million in years 1 and
2 of the Service Agreement, respectively.  The fees can be increased or
decreased by agreement of the parties, but may not be reduced to less than
$4.3 million per contract year.  The Service Agreement is expected to
substantially reduce operating costs in research and development, as the
Company will be contracting solely for the services that the Company requires
for clinical and manufacturing purposes.  The Company will give effect to this
transaction in its financial statements after closing.

     At the closing, most of the Company's employees involved in the
manufacturing and clinical operations will become employees of Boston
University.  Both the purchase price and the operating costs deposits are
subject to refund to Boston University in the event that conditions for
closing are not met.  Upon the closing of this transaction, the Company will
account for the gain and the sale of the operating facility and the excess of
the reimbursed operating costs over the amount due to Boston University,
pursuant to the Service Agreement dated as of February 14, 1997 for the
period from February 14, 1997, until the closing of the transaction, as a
contribution of capital.  As of June 30, 1997, the net amount due to Boston
University from the Company in respect of the operating facility's operating
expenses for the period from February 14, 1997 to June 30, 1997 was
approximately $1,215,160.

     On April 7, 1997, the Company entered into the Amendment to its Sales and
Distribution Agreement and Development Agreement with Lilly pursuant to which
Lilly had originally obtained the development and marketing rights to the
Company's lead molecule IL-2 Fusion Protein for all cancer and certain
non-cancer indications.  Under the terms of the Amendment, subject to certain
limitations, Lilly relinquished all other development and marketing rights to
IL-2 Fusion Protein for non-cancer indications, as well as rights to other
molecules.  In addition, Lilly agreed to pay to Ajinomoto on behalf of the
Company $4.3 million: Lilly paid  $2.15 million to Ajinomoto for a license
granted by Ajinomoto directly to Lilly; and Lilly has agreed to pay, subject
to certain conditions, up to $2.15 million of the Company's $2.25 million
obligation to Ajinomoto under the Company's restructured agreement with
Ajinomoto.  Pursuant to the Amendment, Lilly is permitted to credit $1.5
million of the amount paid by Lilly to Ajinomoto on behalf of the Company
against the next $1.5 million milestone payment that falls due from Lilly to
the Company under the Sales and Distribution Agreement between the Company and
Lilly upon the submission by the Company of a BLA for CTCL to the FDA.  Lilly
is not obligated to make any further payments in respect of the Company's
obligations to Ajinomoto if Lilly terminates the Sales and Distribution
Agreement between it and the Company as a result of a failure by the Company
to meet specified clinical, regulatory and financial milestones and other
requirements.  Among the relevant milestones and requirements referenced in
the preceding sentence are the Company's obtaining commitments for $5.0
million of new investment capital by July 1, 1997, and closing on the same by
August 1, 1997, and the Company obtaining $15.0 million of new investment
capital by October 1, 1997.  On July 31, 1997, the Company reported that it
had obtained $5.0 million through a license agreement with USSC.

     In exchange, the Company issued to Lilly in a private placement, 1.0
million shares of its common stock.  In  the quarter ended June 30, 1997, the


                               -16-

<PAGE>

                                 SERAGEN, INC.
                   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Company has valued the 1.0 million shares of common stock issued to Lilly at
$800,000 based on the April 7, 1997 Nasdaq closing price of $1.00, less 20%
(because the shares are not registered), and has recorded it as research and
development expense. 

     On June 1, 1997, the Company restructured its License Agreement with
Ajinomoto pursuant to which Ajinomoto had granted the Company worldwide rights
to certain IL-2 gene patents owned by the Japanese Foundation for Cancer
Research and Ajinomoto for potential use in the development of the Company's
lead product, IL-2 Fusion Protein.  Prior to the restructuring, the Company
was obligated to pay Ajinomoto a license fee of $4.3 million payable upon the
occurrence of certain specified events, but no later than March 31, 1997
(previously extended by agreement of Ajinomoto to May 31, 1997); and royalties
ranging from 2% to 4% on sales of the licensed product by the Company or its
sublicensees, but with minimum royalties of $100,000 for the third year of the
agreement, $200,000 for the fourth year of the agreement, and $300,000 for the
fifth and following years of the agreement.  In addition, prior to the
restructuring, the rights granted by Ajinomoto to the Company pursuant to the
License Agreement were exclusive.  Under the terms of the restructuring, the
future license fees payable by the Company to Ajinomoto were reduced to
the following amounts: a $2.25 million fee payable in the amount of $800,000
by June 30, 1998, or approval by the FDA of a BLA filed by the Company for the
licensed product, whichever comes first, in the amount of $800,000 by June 30,
1999, and in the amount of $650,000 by March 31, 2000; and a reduced royalty
of 1% on end user net sales of the licensed product by the Company or its
sublicenses.  The Company amended its agreements with Lilly whereby Lilly will
pay license fees to Ajinomoto on behalf of the Company, subject to certain
limitations.  The restructuring provides that the license granted by Ajinomoto
to the Company will be non-exclusive.  Accordingly, in the quarter ended June
30, 1997, the Company reduced its obligation to Ajinomoto from $4.3 million to
$2.25 million and recorded extraordinary income of $2,050,000 for the
reduction of this liability.

     On July 31, 1997, the Company entered into the License Agreement with
UCSC granting UCSC an option on worldwide rights to Seragen's EGF Fusion
Protein for restenosis in cardiovascular applications.  UCSC has acquired
this option in exchange for an initial payment to Seragen of $5.0 million.
Under the terms of the option, UCSC is entitled to acquire an exclusive
license to the technology, at any time during a 15-month evaluation period,
upon the payment to Seragen of an additional $5.0 million.  In addition, the
Company is issuing to UCSC a warrant for the purchase of 500,000 shares of
Seragen Common Stock at a purchase price of $.5625 per share, the closing sale
price for shares of the Company's Common Stock on the date prior to the date
the warrant was issued.  The Company will value this warrant and record it as
a charge to general and administrative expense in the quarter ending September
30, 1997.  UCSC has agreed to fund trials associated with the development of
EGF Fusion Protein for restenosis. If the option is exercised, milestone
payments to Seragen by UCSC could amount to $22.5 million in addition to
royalties on commercial sales by UCSC.  In the event UCSC chooses not to
exercise the option, the License Agreement terminates; and  in exchange, UCSC
will receive $5.0 million in Seragen Common Stock valued at the average of the
closing prices of Seragen common stock (i) for the ten trading days preceding
the date of the License Agreement or (ii) for the ten trading days preceding
the date on which UCSC chooses not to exercise the option, whichever is lower.

     On May 29, 1996, the Company issued 4,000 shares of Series A Preferred
Stock ("Series A Shares"), to investors outside the United States in reliance
on Regulation S of the Securities Act, for gross proceeds of $4 million
(approximately $3.8 million net of offering fees).  Each Series A Share is
convertible into shares of the Company's Common Stock at a conversion price
equal to the lesser of $4.125 or 73 percent of the average closing bid prices
for a five-day period prior to the conversion date, up to a maximum of
3,321,563 shares of Common Stock.  Any share the investor is unable to convert
due to this limitation may be exchanged for $1,150 per share in cash.  The
holders of the Series A Shares also are entitled to receive cumulative
dividends at an 8% annual rate upon conversion, payable in shares of Common
Stock.  Any Series A Shares remaining outstanding on November 29, 1997, will
be automatically converted into shares of Common Stock.  As of August 11,
1997, 2,571 Series A Shares had been converted into 2,573,205 shares of Common
Stock.  If the holders of the Series A Shares convert an additional 184 shares
into Common Stock, the Company will be obligated to exchange any remaining
Series A Shares for $1,150 per share in cash, which is currently estimated at
approximately $1.4 million.  There can be no assurance that the Company will
have sufficient funds to pay these amounts to the holders of the Series A
Shares.

                                    -17-

<PAGE>

                                 SERAGEN, INC.
                   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                FINANCIAL CONDITION AND RESULTS OF OPERATIONS


     The Company has not paid the cash dividends due December 31, 1996, March
31, 1997, or June 30, 1997 on its Series B Shares, nor has the Company made
the royalty payments due to STI on January 1, 1997, April 1, 1997, and
July 1, 1997.  Correspondingly, STI has not paid the dividends due January 1,
1997, April 1, 1997, and July 1, 1997 on its Class B Shares.  The Company does
not expect STI to make the dividend payments due on the Series B Shares
October 1, 1997, and January 1, 1998.  As a result the holders of the Class B
Shares have the right under an escrow agreement to seek delivery to them of a
collateral assignment of the Company's Patents although they have not yet
taken steps to exercise this right to foreclose on the Patents.  The holders
have agreed in principle to forbear until March 1, 1998 from exercising their
right to foreclose on the Patents.

     The Company anticipates that existing cash and cash equivalents, the
reimbursement of clinical costs for the development of IL-2 Fusion Protein for
cancer therapy from Lilly, the reimbursement of operating costs by Boston
University and the $5.0 million received by UCSC for a license option will be
sufficient to fund the Company's working capital requirements through
approximately December 1997.  In addition, the Company must complete the

sale of its manufacturing and clinical operation facilities to Boston
University or the $4.5 million deposit and the $3.4 million operating expenses
that have been paid as of June 30, 1997, on such facility will be subject to
refund to Boston University (See Note 8 in the "Notes to the Financial
Statements" regarding significant future obligations).  The Report
of Independent Accountants on the Company's Financial Statements for the
fiscal year ended December 31, 1996 includes an explanatory paragraph
concerning uncertainties surrounding the Company's ability to continue as a
going concern.  This may adversely affect the Company's ability to raise
additional capital.  See Note A in the Annual Report on Form 10-K for the year
ended December 31, 1996 in the "Notes to the Financial Statements."  The
Company's ability to finance its operations is dependent upon its ability to
raise additional capital through debt or equity financings, possible
additional payments under the strategic alliance with Lilly, or such other
sources of financing, including strategic partnerships, as may be available.

     At December 31, 1996, the Company's net tangible assets (total assets
minus liabilities and goodwill) was a deficit of approximately ($4.8 million)
and at June 30, 1997, the Company's net tangible assets was a deficit of
($11.6 million).  On May 13, 1997, the Company received a letter for the
National Association of Securities Dealers, Inc. (the "NASD") advising it that
because the Company is not in compliance with the minimum net tangible assets
level of $4.0 million, the Company's Common Stock will be delisted from
trading on the Nasdaq National Market.  The Company appealed this decision and
submitted to the NASD a plan for the restoration of its net tangible assets to
the minimum level.  On July 14, 1997, the appeal panel granted the Company a
temporary exception to the minimum net tangible assets requirement.  In order
to qualify for continued listing on the Nasdaq National Market, the Company
was required to make a public filing with the SEC and with Nasdaq reporting
receipt of $5.0 million from UCSC pursuant to a license and option agreement.
The Company reported this transaction on July 31, 1997.  The Company
also is required to make a public filing with the SEC and Nasdaq on or before
August 31, 1997, to report shareholder approval of the sale of the operating
facility to Boston University and to report an agreement for financing in an
amount at least equal to $15.0 million.  On or before September 30, 1997, the
Company must make public filings with the SEC and with Nasdaq to report
closing of the $15.0 million financing and to report a minimum of $14.0
million in net tangible assets on a pro forma basis.  The Company also must be
in compliance with all other criteria for continued listing on the Nasdaq
National Market.  If the Company fails to comply with any of the terms of the
exception granted by the appeal panel, the Company's Common Stock will be
delisted from the Nasdaq National Market immediately.

     There is no assurance that the Company will be able to satisfy the
conditions imposed by the NASD for continued listing on the Nasdaq National
Market or that, if it fails to satisfy any of these conditions, that the NASD
will grant the Company a further waiver or extension.  In the event that the
Company is delisted from the Nasdaq National Market, the Company intends to
re-apply for listing on the Nasdaq National Market or the Nasdaq Small Cap
Market as soon as possible after the Company is able to satisfy the listing
requirements.

     The delisting of the Common Stock from the Nasdaq National Market could
have a material adverse effect on the Company's ability to raise additional
equity capital.  In addition, the delisting for the Common Stock from the

                                  -18-

<PAGE>

                                 SERAGEN, INC.
                   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Nasdaq National Market would entitle the investors in Seragen
Biopharmaceuticals Ltd. ("SBL"), a company 49% owned by the Company, to
exercise certain rights that they hold to require the Company to purchase
their shares in SBL for cash.  There is no assurance that the Company would
have sufficient cash to purchase the investors' shares in SBL for cash
in the event that its Common Stock is delisted.

     The Company is exploring a possible equity offering, although the terms
of such offering have not been finalized.  There can be no assurance that the
Company will be successful in an equity offering or that the amount raised
will be sufficient to fund the Company's operating expenses until other
sources of funds can be secured.  Management of the Company believes that to
be able to complete a new equity financing successfully, the holders of the
Company's Series A, Series B and Series C preferred stock will be required to
convert such securities in connection with the offering.  Management is in
discussions with such holders, but there is no assurance that such agreements
can be reached on terms satisfactory to the Company.  Such an offering is
likely to result in a significant dilution to holders of common shares.

     The Company is seeking to obtain additional funds through collaborative
or other arrangements with corporate partners and others.  There can be no
assurance that the Company will be successful in securing collaborative or
other arrangements with corporate partners or others on acceptable terms, if
at all.  If the Company does not consummate an equity financing or additional
collaborative or other arrangements with corporate partners, then the
Company's current cash position may not be sufficient to meet its financial
obligations or to fund operations at the current level beyond December 1997.
If adequate additional funds are not available, the Company may be required to
delay, scale back or eliminate some or all of its clinical trials,
manufacturing or development activities or certain other aspects of
its business and may be required to cease operations.  The Company also is
exploring other alternatives that could result in a merger or sale of the
Company.

Safe Harbor Information

     Some of the statements contained in this document are forward-looking,
including statements relating directly or by implication to the Company's
products, operations, strategic partnerships, and ability to fund its
operations.  These statements are based on current expectations and involve a
number of uncertainties and risks, including (but not limited to) the
Company's ability to proceed with successful development, testing, and
licensing of its products and the Company's ability to enter into additional
strategic partnerships and other collaborative arrangements or to raise
additional capital on satisfactory terms, or to complete a merger or sale of
the Company.  For further information, refer to the "Business Outlook" section
in the Company's Form 10-K as filed with the Securities and Exchange
Commission.  Actual results may differ materially from such expectations.

                                    -19-

<PAGE>

                                  PART II
                            OTHER INFORMATION

Item 2.  Changes in Securities

        On April 7, 1997, the Company issued 1,000,000 shares of Common Stock
to Lilly. No cash consideration was received by the Company.  The shares were
delivered in consideration for Lilly amending its prior agreements with
the Company and relinquishing  certain rights to the Company.  These
securities were issued pursuant to an exemption from registration under the
Securities Act of 1933 ("Securities Act") in reliance on the exemption
provided in Section 4(2) of the Securities Act.

        On July 31, 1997, in connection with the Company's license agreement
with UCSC, the Company issued to UCSC a warrant for the purchase of 500,000
shares of Common Stock at a purchase price of $.5626 per share, the closing
sale price for shares of the Company's Common Stock on the date prior to the
date the warrant was issued.  UCSC paid no separate cash consideration for the
warrant.  The warrant was issued pursuant to an exemption from registration
under the Securities Act in reliance on the exemption provided in Section 4(2)
of the Securities Act.

Item 3.  Defaults upon Senior Securities

        Under the terms of the Series B Preferred Stock (the "Series B
Shares"), the Company is obligated to pay quarterly dividends to the holders
of the Series B Shares.  The Company did not make its dividends payments due
December 31, 1996, March 31, 1997 and June 30, 1997, and does not anticipate
making the payment due September 30, 1997.  As of June 30, 1997, the amount of
dividends in arrears was approximately $1.7 million.

        In connection with the issuance of the Series B Shares, the Company
transferred all of its existing and future United States patents and patent
applications  (the "Patents") to Seragen Technology, Inc. ("STI") in exchange
for 214,200 shares of STI Class A Common Stock and 23,800 shares of STI Class
B Common Stock.  STI provided the Company with an irrevocable worldwide
exclusive license (the "Irrevocable License Agreement") with respect to the
Patents.  Under the Irrevocable License Agreement, the Company is obligated to
pay quarterly royalties in an amount equal to the amount of any dividend that
the holders of the Series B Shares are entitled to receive but have not
received by the royalty due date (which is one day after each quarterly
dividend payment date for the Series B Shares).  The Company delivered the
23,800 shares of STI Class B Common Stock pro rata to the holders of the
Series B Shares.  STI's Class B Common Stock provides for cumulative dividends
payable in the same amount as any royalties payable by the Company under the
Irrevocable License Agreement.  STI also executed a collateral assignment of
the Patents in favor of the holders of the Series B Shares.  Pursuant to an
escrow arrangement, the collateral assignment of the Patents is required to be
delivered to the holders of the Series B Shares in the event that, after
notice, STI fails for 60 days to pay any dividend due in respect of its Class
B Common Stock.  The Company did not make its royalty payments due January 1,
1997, April 1, 1997, or July 1, 1997, and does not anticipate making the
payments due October 1, 1997 and January 1, 1998.  STI did not pay Class B
Common Stock dividends due January 1, 1997,  April 1, or July 1, 1997, and
does not anticipate making the payments due October 1, 1997 and January 1,
1998.  To the Company's knowledge, the holders of the Series B Shares have not
provided notice of the STI dividend payment failure to the escrow agent.  The
holders have agreed in principle to forebear until March 1, 1998 from
exercising their right to foreclose on the Patents.  In the event that STI
redeems its Class B Common Stock, the escrow agent is required to deliver a
reassignment of the Patents, executed by the holders of the STI Class B Common
Stock, to the Company.

Item 6. Exhibits, financial statements schedules and reports on Form 8-K

        (a)  Exhibit Index

                                -20-

<PAGE>
                              PART II
                          THER INFORMATION


         Exhibit 10.80 - Amendment No. 4 to the Consulting Agreement executed
         May 28, 1997, by and between the Registrant and John R. Murphy, Ph.D.
         (filed herewith)

         Exhibit 10.81- Second Amendment to Employment Agreement, dated April
         30, 1997, by and between the Registrant and Mr. Reed R. Prior (filed
         herewith)

         Exhibit 10.82 -  Second Amendment to Employment Agreement, dated May
         30, 1997, by and between the Registrant and Jean C. Nichols, Ph.D.
         (filed herewith)

         Exhibit 10.83 -  Amendment No. 1 to Asset Purchase Agreement dated
         May 16, 1997, by and between the Registrant and Boston University 
         (filed herewith)

         Exhibit 10.84 - Amendment to Sales and Distribution Agreement and
         Development Agreement, dated April 7, 1997, by and between the
         Registrant and Eli Lilly and Company (previously filed)

         Exhibit 10.85 - Stock Purchase Agreement, dated April 7, 1997, by and
         between the Registrant and Eli Lilly and Company (previously filed)

         Exhibit 10.86 - License Agreement, dated December 13, 1994, by and
         between the Registrant and Ajinomoto Co., Inc. (previously filed)

         Exhibit 10.87 - Amendment to License Agreement, dated June 1, 1997,
         by and between the Registrant and Ajimomoto Co., Inc. (previously
         filed) 

         Exhibit 10.88 - Evaluation License and Option Agreement, dated as of
         July 31, 1997, by and between the Registrant and U.S. Surgical
         Corporation (previously filed)

         Exhibit 10.89 - Stock Purchase Warrant Agreement, dated July 31, 
         1997, by and between the Registrant and U.S. Surgical Corporation
         (previously filed)

  (b)  Reports on Form 8-K

       A Current Report on Form 8-K/A for April 7, 1997 event, relating to
       Company's announcement that it had amended its prior agreements with
       Eli Lilly and Company.

       A Current Report on Form 8-K for June 10, 1997 event, relating to the
       Company's announcement that it had amended its prior agreement with
       Ajinomoto Co., Inc.

       A Current Report on Form 8-K for July 31, 1997 event, relating to the
       Company's announcement that it had granted a license option to United
       States Surgical Corporation. 

       A Current Report on Form 8-K/A for July 31, 1997 event, relating to the
       Company's inclusion of an Evaluation and License Agreement and Stock
      Purchase Warrant with United States Surgical Corporation

                                  -21-

<PAGE>
<PAGE>
                             SERAGEN, INC.
                              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.



                                                Seragen, Inc.



Date: August 11, 1997                           By:____________________
                                                   Reed R. Prior
                                                   Chairman of the Board
                                                   and Chief Executive Officer



Date: August 11, 1997                           By:______________________
                                                   Jean C. Nichols, Ph.D.
                                                   President, Chief Technology
                                                   Officer And Director
                                                   (Principal Financial and
                                                   Accounting Officer)




                                   -22-

PAGE
<PAGE>
                           SERAGEN, INC.
                            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.



                                       Seragen, Inc.



Date: August 11, 1997                  By: /s/ Reed R. Prior
                                           Reed R. Prior
                                           Chairman of the Board
                                           and Chief Executive Officer



Date: August 11, 1997                  By: /s/ Jean C. Nichols, Ph.D.
                                           Jean C. Nichols, Ph.D.
                                           President, Chief Technology
                                           Officer and Director
                                           (Principal Financial and
                                           Accounting Officer)


                                -22-

<PAGE>





           <PAGE>
                           SERAGEN, INC.
                           EXHIBIT INDEX
                                                  

Exhibit
Number                       Description                                 Page
 

(10.80)     Amendment No. 4 to the Consulting Agreement,
            executed May 28, 1997, by and between the
            Registrant and John R. Murphy, Ph.D. (filed herewith)          24


(10.81)     Second Amendment to Employment Agreement , dated April
            30, 1997, by and between the Registrant and Reed R. Prior
            (filed herewith)                                               25

(10.82)     Second Amendment to Employment Agreement, dated May
            30, 1997, by and between the Registrant and Jean C.
            Nichols, Ph.D.  (filed herewith)                                27 
   
(10.83)     Amendment No. 1 to Asset Purchase Agreement, dated
            May 16, 1997, by and between the Registrant and Boston
            University (filed herewith)                                    30


(10.84)    Amendment to Sales and Distribution Agreement and
           Development Agreement, dated April 7, 1997, by and
           between the Registrant and Eli Lilly and Company
           (previously filed)

(10.85)    Stock Purchase Agreement, dated April 7, 1997, by and
           between the Registrant and Eli Lilly and Company
           (previously filed) 

(10.86)    License Agreement, dated December 13, 1994, by and
           between the Registrant and Ajinomoto Co., Inc.
           (previously filed)

(10.87)    Amendment to License Agreement, dated June1, 1997,
           by and between the Registrant and Ajimomoto Co., Inc.
           (previously filed) 

(10.88)    Evaluation License and Option Agreement, dated as of 
           July 31, 1997, by and between the Registrant and U.S.
           Surgical Corporation (previously filed)

(10.89)    Stock Purchase Warrant Agreement, dated July 31, 1997,
            by and between the Registrant and U.S. Surgical Corporation
            (previously filed)

                                     -23-


<PAGE>





                                                                Exhibit 10.80



                                    AMENDMENT 4
                               CONSULTING AGREEMENT

     This Amendment, effective as of January 1, 1997, is made by and
between Seragen, Inc., a Delaware corporation having an address at 97 South
Street, Hopkinton, Massachusetts ("Seragen") and John R. Murphy, Ph.D. having
an address at 130 Appleton Street, #1E, Boston, Massachusetts 02116 (the
"Consultant").

     WHEREAS, the parties entered into a Consulting Agreement effective
January 1, 1992 which was amended effective October 1, 1994, October 1, 1995,
and January 1, 1996 (the "Agreement"); and

     WHEREAS the parties now wish to further amend the Agreement;

     NOW, THEREFORE, Seragen and the Consultant agree to amend the Agreement
as follows:

 1. Section 5 of the Agreement shall be modified to read as follows:

       Consultant shall be compensated under this Agreement at the annual
       rate of $50,000 payable at the monthly rate of $4,166.67 on the last
       business day of each month.  Consultant shall also be reimbursed for
       out-of-pocket expenses incurred by him at the request of, or with the
       approval of the Company upon presentation of itemized statements to
       the Company.

 2. This Agreement shall continue until December 31, 1997.

 3. This Amendment shall be made part of the Agreement and attached thereto.  
    Except as provided herein, all other terms and conditions of the
    Agreement shall remain in force.
        
    IN WITNESS WHEREOF, the parties have caused this Amendment to be executed
as of the date last written below.  The Effective Date of this Amendment shall
be January 1, 1997.

ACCEPTED AND AGREED:

SERAGEN, INC.                                       JOHN R. MURPHY, PH.D.

/s/Reed R. Prior                                    /s/John R. Murphy, PH.D.
_________________                                   ________________________
Reed  R. Prior                           
Chairman and Chief Executive Officer

________________________________                  ____________________________
Date                                              Date


                               -XX-

<PAGE>




                                                                Exhibit 10.81



                   AMENDMENT NO. 2 TO EMPLOYMENT AGREEMENT

     Amendment No. 2 to Employment Agreement (the "Amendment") dated as of
April 30, 1997 between Seragen, Inc. (the "Company") and Reed Prior ("Prior").

     WHEREAS, the Company and Prior entered an Employment Agreement dated as
of November 6, 1996 (the "Employment Agreement"), as amended by Amendment No.
1 to Employment Agreement dated as of December 18, 1996; and

     WHEREAS, the Company and Prior desire to further amend the Employment
Agreement;

     NOW, THEREFORE, the parties hereto agree as follows:

 1.   Capitalized terms used herein and not otherwise defined shall have
the same meaning herein as in the Employment Agreement.

 2.   Subparagraph 3(c)(viii) of the Employment Agreement is hereby
amended to read as follows:

      "(viii) in the event that the Company grants options or other equity
interests to management, employees, directors or consultants or the
Company sells shares of its Common Stock or any equity securities or
securities convertible or exchangeable into any equity securities of the
Company, as part of a plan or series of plans of financing, or the number
of shares of Common Stock outstanding on a Fully Diluted Basis increases
as a result of a change in the conversion ratio of any class of securities
convertible or exchangeable into any equity securities of the Company, the
Company shall grant Prior additional stock options under the Plan covering
that number of shares of Common Stock necessary to cause Prior's 
proportionate holdings of the outstanding Common Stock, on a Fully Diluted
Basis, immediately after the grant or sale of such options, shares or
other equity interests to equal his proportionate holdings of the
outstanding Common Stock, on a Fully Diluted Basis, immediately prior to 
the grant or sale of such options, shares or other equity interests, but
not to exceed 8-1/2% of the Common Stock on a Fully Diluted Basis;
provided that Prior's right to receive additional stock options under this
subsection 3(c)(viii) will terminate after the Company receives cumulative
proceeds (since the date of execution of the Employment Agreement) of at
least Twenty Million Dollars ($20,000,000) of cash proceeds from one or
more Target Equity Finances and the Executive has received all additional
stock options with respect to securities issued with respect to such
cumulative proceeds and all other preceding events;"


                                -XX-

<PAGE>
 3.   Subparagraph 3(c)(ix) of the Employment Agreement is hereby amended
to read as follows:

 " (ix) all additional stock options shall be granted on the last day of
each calendar quarter during which such grant or sale of options, shares
or other equity interests is completed, based on the number of shares of
Common Stock outstanding on a Fully Diluted Basis on the last day of such
calendar quarter, except that in the case of any Target Equity Financing
from which the Company receives proceeds of at least Ten Million Dollars
($10,000,000), the additional stock options will be granted immediately
upon the consummation of such Target Equity Financing, and each such
additional stock option shall have an exercise price equal to the fair
market value per share of Common Stock on its date of grant, and shall
otherwise be subject to the same terms and conditions, and shall vest and
remain exercisable on the same terms as though it were granted on the same
date as the initial options that are required to be issued on or before
December 18, 1996;"

 4.   Section 4(f) of the Employment Agreement is hereby amended to read
as follows:

      "(f) Target Equity Financing.  "Target Equity Financing" shall mean
the sale or issuance of stock of the Company or of debt securities of the
Company with conversion rights, other than (i) stock or debt securities sold
or issued to a shareholder and/or affiliated investment entities who as of
the Effective Date collectively own at least 1% of the Common Stock as
measured on a Fully Diluted Basis; or (ii) stock issued as a result of the
exercise of options presently outstanding or issued pursuant to the Plan."


 5.   Except as modified herein, the Employment Agreement shall remain in
full force and effect.

 IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the day and year first above written.



                                            /s/Reed R. Prior
                                            ________________
                                            Reed R. Prior



                                           SERAGEN, INC.
                                           By: /s/Jean C. Nichols, Ph.D.
                                               _________________________
                                           Jean C. Nichols, Ph.D.
                                           President and Chief
                                           Technology Officer

                                  -XX-

<PAGE>



                                                                Exhibit 10.82

                    AMENDMENT NO. 2 TO EMPLOYMENT AGREEMENT

     Amendment No. 2 to Employment Agreement (the "Amendment") dated as of 
May 30, 1997 between Seragen, Inc. (the "Company") and Jean C.Nichols,Ph.D. 
("Nichols").

     WHEREAS, the Company and Nichols entered an Employment Agreement dated as
of November 6, 1996 (the "Employment Agreement"), as amended by Amendment No.
1 to Employment Agreement dated as of December 18, 1996; and

     WHEREAS, the Company and Nichols desire to further amend the Employment
Agreement;

     NOW, THEREFORE, the parties hereto agree as follows:

     1.   Capitalized terms used herein and not otherwise defined shall have
the same meaning herein as in the Employment Agreement.

     2.   Subparagraph 3.6(viii) of the Employment Agreement is hereby amended
to read as follows:

          "(viii) in the event that the Company grants options or other equity
          interests to management, employees, directors or consultants or the
          Company sells shares of its Common Stock or any equity securities or
          securities convertible or exchangeable into any equity securities
          of the Company, as part of a plan or series of plans of financing,
          or the number of shares of Common Stock outstanding on a Fully
          Diluted Basis increases as a result of a change in the conversion
          ratio of any class of securities convertible or exchangeable into
          any equity securities of the Company, the Company shall grant
          Nichols additional stock options under the Plan covering that number
          of shares of Common Stock necessary to cause Nichols's proportionate
          holdings of the outstanding Common Stock, on a Fully Diluted Basis,
          immediately after the grant or sale of such options, shares or other
          equity interests to equal his proportionate holdings of the
          outstanding Common Stock, on a Fully Diluted Basis, immediately
          prior to  the grant or sale of such options, shares or other equity
          interests, but not to exceed 2.75% of the Common Stock on a Fully
          Diluted Basis; provided that Nichols's right to receive additional
          stock options under this subsection 3.6(viii) will terminate after
          the Company receives cumulative proceeds (since the date of
          execution of the Employment Agreement) of at least Twenty Million
          Dollars ($20,000,000) of cash proceeds from one or more Target
          Equity Financings and the Executive has received all additional
          stock options with respect to securities issued with respect to such
          cumulative proceeds and all other preceding events;"

                                      -XX-

<PAGE>

     3.   Subparagraph 3.6(ix) of the Employment Agreement is hereby amended
to read as follows:

          " (ix) all additional stock options shall be granted on the last
          day of each calendar quarter during which such grant or sale of
          options, shares or other equity interests is completed, based on the
          number of shares of Common Stock outstanding on a Fully Diluted
          Basis on the last day of such calendar quarter, except that in the
          case of any Target Equity Financing from which the Company receives
          proceeds of at least Ten Million Dollars ($10,000,000), the
          additional stock options will be granted immediately upon the
          consummation of such Target Equity Financing, and each such
          additional stock option shall have an exercise price equal to the
          fair market value per share of Common Stock on its date of grant,
          and shall otherwise be subject to the same terms and conditions, and
          shall vest and remain exercisable on the same terms as though it
          were granted on the same date as the initial options that are
          required to be issued on or before December 18,1996;"

     4.   Section 3 of the Employment Agreement is hereby amended to read as
follows:

          "(f) Target Equity Financing.  "Target Equity Financing" shall mean
          the sale or issuance of stock of the Company or of debt securities
          of the Company with conversion rights, other than (i) stock or debt
          securities sold or issued to a shareholder and/or affiliated
          investment entities who as of the Effective Date collectively own at
          least 1% of the Common Stock as measured on a Fully Diluted Basis;
          or (ii) stock issued as a result of the exercise of options
          presently outstanding or issued pursuant to the Plan."


     5.   Except as modified herein, the Employment Agreement shall remain in
full force and effect.

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the day and year first above written.



                                         /s/Jean C. Nichols, Ph.D.
                                         _________________________
                                         Jean C.Nichols, Ph.D.



                                         SERAGEN, INC.

 
                                         By: /s/Reed R. Prior
                                         ____________________
                                         Reed R.Prior.
                                         Charirman and Chief
                                         Executive Officier


                              -XX-


<PAGE>


                                                          Exhibit 10.83



          AMENDMENT NO. 1 TO ASSET PURCHASE AGREEMENT


     This Amendment No. 1 to Asset Purchase Agreement is made between Seragen,
Inc., a Delaware corporation having a usual place of business at 97 South
Street, Hopkinton, Massachusetts (the "Seller"), and Trustees of Boston
University, a Massachusetts not-for-profit corporation having a usual place of
business at 881 Commonwealth Avenue, Boston, Massachusetts (the "Buyer"), as
of May 16, 1997, for the purpose of amending that certain Asset Purchase
Agreement, dated as of February 14, 1997 (the "Asset Purchase Agreement"),
between the Seller and the Buyer.

      THE PARTIES AGREE AS FOLLOWS:

      1.   Section 1.05 of the Asset Purchase Agreement is amended by
deleting therefrom the date "June 2, 1997" and replacing it with "August 29,
1997".

      2.   Clause (iii) of the second sentence of Section 1.08 of the Asset
Purchasing Agreement is amended to read in its entirety as follows:

      (iii) the failure of both (A) a majority of the shares of capital
      stock of the Seller issued and outstanding and entitled to vote on
      the matter and (B) a majority of the shares of capital stock of the
      Seller issued and outstanding, entitled to vote on the matter, and
      held by, and the voting of which is controlled by, persons other than
      (1) Boston University, (2) persons affiliated with Boston University,
      and (3) persons otherwise interested in the relevant transactions
      than in their capacity as shareholders of the Seller, to approve the
      transactions contemplated by this Agreement; or
         
      3.   Section 7.03 of the Asset Purchase Agreement in amended to read
in its entirety as follows:

           SECTION 7.03   Stockholder Approval.  The Seller shall have
      received the approval of the transactions contemplated hereby by both
      (a) a majority of the shares of capital stock of the Seller issued
      and outstanding and entitled to vote on the matter and (b) a majority of
      the shares of capital stock of the Seller issued and outstanding,
      entitled to vote on the matter, and held by, and the voting of which
      is controlled by, persons other than (i) Boston University, (ii)
      persons affiliated with Boston University, and (iii) persons otherwise
      interested in the relevant transactions other than in their capacity
      as shareholders of the Seller.
         
      4.   As between the parties hereto, this amendment shall be deemed for
all purposes to be and have become effective as of February 14, 1997.



                                 -XX-

<PAGE>

      5.   Except as modified by this Amendment No. 1, the Asset Purchase
Agreement shall remain in full force and effect.

      IN WITNESS WHEREOF, the Buyer and Seller have executed this Amendment
No. 1 as of the date first set forth above.

                                         SERAGEN, INC.



                                        By:/s/ Reed R. Prior
                                           _________________
                                        Reed R. Prior, Chairman,
                                        Chief Executive Officer and
                                        Treasurer


                                        TRUSTEES OF BOSTON UNIVERSITY


                                        By:/s/ Kenneth G. Condon
                                           _____________________
                                        Kenneth G. Condon, Treasurer



                             -XX-


<PAGE>


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