MEDIMMUNE INC /DE
10-Q, 1999-05-14
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549

                                    FORM 10-Q



{X}  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934


For the quarterly period ended March 31, 1999

Commission File No. 0-19131




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


Delaware                                   52-1555759
(State or other jurisdiction of           (I. R. S. Employer
 incorporation or organization)           Identification No.)



35 West Watkins Mill Road, Gaithersburg, MD          20878
(Address of principal executive offices)          (Zip Code)



Registrant's telephone number, including area code (301)417-0770


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 [ ]

As of March 31, 1999,  55,622,518  shares of Common  Stock,  par value $0.01 per
share, were outstanding.
<PAGE>



                                 MEDIMMUNE, INC.
                               Index to Form 10-Q



Part I  Financial                                         Page

     Item 1.   Financial Statements
                 Balance Sheets                             1
                 Statements of Operations                   2
                 Condensed Statements of Cash Flows         3
                 Notes to Financial Statements            4-7

     Item 2.   Management's Discussion and Analysis
               of Financial Condition and Results
               of Operations                             8-11

Part II  Other Information                              11-12

     Item 1.   Legal Proceedings

     Item 2.   Changes in Securities

     Item 3.   Defaults upon Senior Securities

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

     Item 5.   Other Information

     Item 6.   Exhibits and Reports on Form 8-K


     CytoGam and RespiGam are  registered  trademarks of the Company and Synagis
     is a trademark of the Company.


<PAGE>

<TABLE>
<CAPTION>
ITEM 1.                     FINANCIAL STATEMENTS
                                 MEDIMMUNE, INC.
                                 BALANCE SHEETS
(in thousands, except share data)                                     
<S>                                              <C>              <C>
                                                   March 31,    December 31,
                                                      1999          1998
                                                   ----------    ----------
ASSETS:                                           (Unaudited)               
  Cash and cash equivalents                         $  30,090        $ 37,959
  Marketable securities                               163,964          96,923
  Trade receivables, net                               39,586          31,682
  Contract receivables, net                             2,743           3,155
  Inventory, net                                       17,163          19,760
  Deferred tax assets                                  21,568          22,595
  Other current assets                                    929           4,292
                                                    ----------      ----------
    Total Current Assets                              276,043         216,366
  Property and equipment, net                          76,249          74,822
  Inventory-noncurrent                                  4,312           4,949
  Deferred tax assets, net                             51,917          54,923
  Other assets                                          8,320           2,060
                                                    ----------      ----------
Total Assets                                         $416,841        $353,120
                                                    ==========      ==========


LIABILITIES AND SHAREHOLDERS' EQUITY:                             
  Accounts payable, trade                            $  2,045        $  4,052
  Accrued expenses                                     48,877          33,397
  Product royalties payable                            17,544          14,948
  Accrued interest                                      1,515           2,580
  Other current liabilities                             2,904           2,993
                                                    ---------       ----------
    Total Current Liabilities                          72,885          57,970
  Long-term debt                                       80,926          83,195
  Other liabilities                                     2,130           2,122
                                                    ----------      ----------
    Total Liabilities                                 155,941         143,287
                                                    ----------      ----------
  Commitments and Contingencies                                   

SHAREHOLDERS' EQUITY:                                             
  Preferred stock, $.01 par value; authorized                     
    5,524,525 shares; none issued or outstanding           --              --
  Common stock, $.01 par value; authorized                        
   120,000,000 shares; issued and outstanding                     
    55,622,518 at March 31, 1999 and                              
    54,654,842 at December 31, 1998                       556             547
  Paid-in capital                                     311,541         289,318
  Accumulated deficit                                 (51,197)        (80,032)
                                                     ---------       ---------
    Total Shareholders' Equity                        260,900         209,833
                                                     ---------       ---------
    Total Liabilities and Shareholders' Equity       $416,841        $353,120
                                                     =========       =========

</TABLE>

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




                                       1
<PAGE>




<TABLE>
<CAPTION>
                                    MEDIMMUNE, INC.
                               STATEMENTS OF OPERATIONS
                                      (Unaudited)

  (in thousands except per share data)
                                                     For the                    
                                                Three months ended              
                                                     March 31,                  
                                                -----------------               
                                               1999              1998           
                                              -------           -------         
  <S>                                           <C>               <C>       
  Revenues:                                                                           
    Product sales                            $126,996           $42,893     
    Other                                       1,725            16,445     
                                             --------           --------        
             Total revenues                   128,721            59,338     

  Costs and Expenses:
    Cost of sales                             31,267            22,275      
    Research and development                   8,783             5,668      
    Selling, administrative and general       37,049            12,926      
    Other operating expenses                   5,868             5,802      
                                             --------          --------         
             Total expenses                   82,967            46,671      
                                             --------          --------         

  Operating Income                            45,754            12,667      
    Interest income                            2,187             1,700      
    Interest expense                            (928)           (1,162)     
                                             --------          --------     
  Income before income taxes                  47,013            13,205      
  Provision for income taxes                  18,178               -
                                             --------          --------
  Net earnings                               $28,835           $13,205
                                             ========          ========         
  Basic earnings per share                     $0.52             $0.25      
                                             ========          ========
  Shares used in calculation                                       
  of basic earnings per share                 55,162            51,888
                                             ========          ========

  Diluted earnings per share                   $0.45             $0.22          
                                             ========          ========     
  Shares used in calculation of                                             
    diluted earnings per share                65,468            63,155      
                                             ========          ========         

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


                                       2
<PAGE>



<TABLE>
  <CAPTION>
                 MEDIMMUNE, INC.
        CONDENSED STATEMENTS OF CASH FLOWS
                   (Unaudited)
  (in thousands)                                        For the
                                                  three months ended
                                                      March 31,
                                                    1999       1998
                                                   --------  --------
  <S>                                            <C>          <C>
  CASH FLOWS FROM OPERATING ACTIVITIES:                       
    Net earnings                                   $28,835      $13,205
    Noncash items:                                             
      Deferred taxes                                18,103          -
      Depreciation and amortization                    848          632
      Amortization of discount on marketable                   
       securities                                    (343)        (413)
      Other                                           (663)        (445)
    Other changes in assets and liabilities         14,179       (2,181)
                                                   --------     --------
        Net cash provided by operating             
        activites                                   60,959       10,798
                                                   --------     --------

  CASH FLOWS FROM INVESTING ACTIVITIES:
    Increase in marketable securities              (66,698)     (68,177)
    Capital expenditures                            (1,583)      (1,114)
    Other                                           (6,350)           -                                                   
                                                   --------     --------
         Net cash provided by investing            
         activities                                (74,631)     (69,291)
                                                   --------     --------

  CASH FLOWS FROM FINANCING ACTIVITIES:                        
    Net proceeds from issuance of common                       
         stock and exercise of stock options         8,160       73,776
    Decrease in long-term debt                      (2,357)        (516)
                                                   --------     --------
         Net cash provided by financing
         activities                                  5,803       73,260
                                                   --------     --------
  Net (decrease) increase in cash and cash                     
       equivalents                                  (7,869)      14,767
  Cash and cash equivalents at beginning                       
       of period                                    37,959       29,984
                                                   --------     --------
  Cash and cash equivalents at end of period       $30,090      $44,751
                                                   ========     ========
  </TABLE>                                                    
The accompanying notes are an integral part of these financial statements.


                                       3
<PAGE>



                                 MEDIMMUNE, INC.
                          NOTES TO FINANCIAL STATEMENTS
                                   (UNAUDITED)
General
The  financial  information  presented as of March 31,  1999,  and for the three
months  ended  March 31,  1999 and 1998,  is  unaudited.  In the  opinion of the
Company's management,  the financial information contains all adjustments (which
consist only of normal recurring  adjustments) necessary for a fair presentation
of such financial information.

Inventory
Inventory net of reserves, consists of the following (in thousands):
<TABLE>
<CAPTION>
      <S>                       <C>              <C>
                                   March 31,      December 31,
                                     1999             1998
                                 -------------    -------------
      Raw Materials                 $8,802          $9,794
      Work in Process                7,957           9,188
      Finished Goods                 4,716           5,727
                                    -------        --------
                                    21,475          24,709
      Less noncurrent inventory     (4,312)         (4,949)
                                    -------        --------
                                   $17,163         $19,760
                                   ========        ========
</TABLE>
The Company has  purchased  plasma and other raw materials for use in production
in the Company's Frederick manufacturing facility, which is subject to U.S. Food
and Drug Administration  ("FDA") licensure and approval.  Due to the uncertainty
surrounding  the likelihood  and timing of FDA approval, all inventory for
this facility has been  classified as  noncurrent  in the  accompanying  balance
sheet.

As a result of the June 1998 FDA approval of the Company's second generation RSV
product,  Synagis,  and the market  acceptance of Synagis,  the Company reserved
approximately  $9.2 million against its RespiGam inventory in the second quarter
of 1998,  as no further  significant  product  sales are expected to result from
this inventory in the foreseeable  future.  As of March 31, 1999,  approximately
$8.0 million of the reserve remains.  The remaining RespiGam plasma inventory of
$2.7 million has been  written down to the value the Company  expects to recover
upon sale to third  parties.  Should the Company be unable to sell the plasma at
its net  book  value,  a  further  adjustment  in a  subsequent  quarter  may be
necessary.

Finished  goods at March 31, 1999 and December  31, 1998  include  approximately
$1.6 million of  by-products  that result from the  production  of the Company's
principal products at one of its contract manufacturers and are held for resale.
The March 31,  1999 and  December  31,  1998  balances  are net of a reserve of
$1.6 million.


                                       4
<PAGE>




Property and Equipment
Property  and  equipment,   stated  at  cost,  consists  of  the  following  (in
thousands):
<TABLE>
<CAPTION>
     <S>                                  <C>              <C>
                                            March 31,      December 31,
                                              1999             1998
                                          ------------     ------------

      Land                                   $ 2,147           $ 2,147
      Buildings & building improvements        7,489             7,085
      Leasehold improvements                  13,235            12,736
      Laboratory, manufacturing and                        
      facilities equipment                    11,318            10,841
      Office furniture, computers, and                     
      equipment                                5,953             5,739
      Construction in progress                48,748            48,067
                                             ---------        --------
                                              88,890            86,615
      Less accumulated depreciation and                    
      amortization                           (12,641)          (11,793)
                                             ---------        ---------
                                             $76,249           $74,822
                                             =========        =========
</TABLE>
Construction  in progress  includes costs incurred in connection with the design
and   construction  of  the  Company's   manufacturing   facility  and  includes
capitalized  interest  costs of $6.0  million and $5.3 million at March 31, 1999
and December 31, 1998, respectively.

Buildings includes the purchase in December 1998 of a new facility in Frederick,
Maryland.  This  facility  is  expected  to  provide  additional  warehouse  and
administrative space. Buildings also includes costs associated with the portions
of  the  Company's   manufacturing  facility  placed  in  service  during  1998.
Construction  of the  manufacturing  facility is  complete  and  validation  and
start-up activities are ongoing.  The Company will continue to capitalize costs,
primarily capitalized interest, related to the facility until placed in service.
The portions of the facility that are subject to inspection  and approval by the
FDA will be placed in service and  depreciation  will  commence  upon receipt of
such approval.

Income Tax Provision
The income tax  provision  in the  current  quarter has been  computed  using an
effective  combined  federal and state tax rate of 38.6%. The cash obligation of
such provision has been offset by the utilization of deductions generated by the
exercise of stock  options and the  utilization  of  deferred  taxes,  comprised
mostly of net  operating  loss  carryforwards. As required,  the tax benefit of 
stock option exercise deductions has been recorded directly to stockholders'
equity.

Earnings per Share
The  Company  computes  earnings  per  share in  accordance  with  Statement  of
Financial  Accounting  Standards  ("SFAS") No. 128,  "Earnings Per Share." Basic
earnings per share is computed  based on the weighted  average  number of common
shares  outstanding  during the period.  Diluted  earnings per share is computed
based on the weighted  average shares  outstanding and the dilutive common stock
equivalents  outstanding  during the period.  The dilutive effect of convertible
debt is measured using the "if converted"  method.  The dilutive effect of stock
options is measured  using the treasury stock method.  Common stock  equivalents
are not included in periods where there is a loss as they are anti-dilutive. The
following is a reconciliation  of the numerators and denominators of the diluted
EPS computation for the periods reported.

                                       5
<PAGE>

<TABLE>
<CAPTION>
     <S>                                  <C>              <C>
                                             March 31,        March 31,
                                               1999             1998
                                             ----------      ----------
Numerator:
Net earnings                                   $ 28,835        $13,205

Interest on 7% convertible notes, net of
amounts capitalized and for 1999, net of
related taxes                                       358            578
                                               ---------      ---------
Numerator for diluted EPS                      $ 29,193        $13,783
                                               =========      =========
Denominator:
Weighted average shares outstanding             55,162          51,888

Effect of dilutive securities:

Stock options                                    4,208           5,169
7% convertible notes                             6,098           6,098
                                              ---------        --------
Denominator for diluted EPS                     65,468          63,155
                                              =========        ========
</TABLE>

Options to purchase  1,315,100  shares of common stock with prices  ranging from
$55.00 to $59.50 per share  were  outstanding  in the first  quarter of 1999 and
options to purchase  386,800  shares of common  stock with prices  ranging  from
$24.75 to $28.13 per share were  outstanding  in the first quarter of 1998,  but
were not included in the computation of diluted  earnings per share because they
were anti-dilutive.

                                       6
<PAGE>

Restatements
Prior year share and per share  amounts have been restated to give effect to the
two-for-one stock split on December 31, 1998.

New Accounting Pronouncement
Derivative Instruments and Hedging Activities
In June  1998,  the  FASB  issued  SFAS  No.  133,  "Accounting  for  Derivative
Instruments and Hedging  Activities".  SFAS No. 133  establishes  accounting and
reporting  standards for derivative  instruments,  including certain  derivative
instruments embedded in other contracts and for hedging activities. SFAS No. 133
requires companies to recognize all derivatives as either assets or liabilities,
with the instruments  measured at fair value. The accounting for changes in fair
value,  gains or losses,  depends on the intended use of the  derivative and its
resulting  designation.  The statement is effective  for all fiscal  quarters of
fiscal years  beginning after June 15, 1999. The Company will adopt SFAS No. 133
by  January  1,  2000.  Because of the  Company's  minimal  use of  derivatives,
management  does not  anticipate  that the  adoption of SFAS No. 133 will have a
material effect on the earnings or financial position of the Company.


                                       7
<PAGE>

ITEM 2.
                                 MEDIMMUNE, INC.
                  MANAGEMENT'S DISCUSSION AND ANALYSIS OF
               FINANCIAL CONDITION AND RESULTS OF OPERATIONS

RESULTS OF OPERATIONS
THREE MONTHS ENDED MARCH 31, 1999 AND 1998

Product sales  increased 196% to $127.0 million in first quarter 1999 from $42.9
million in first quarter  1998,  principally  due to sales of Synagis.  Sales of
Synagis  for the 1999  quarter  were  $116.2  million  and during the  1998/1999
respiratory  syncytial virus ("RSV") season totaled  $226.0  million.  Synagis
sales in the first quarter of 1999 included $1.5 million of international  sales
to  the  Company's  exclusive  international   distributor  of  Synagis,  Abbott
Laboratories. RespiGam sales of $0.3 million were recorded in first quarter 1999
versus $32.1  million in first quarter  1998,  reflecting  the shift in customer
demand from  RespiGam to Synagis for  prevention of RSV disease and adequate 
levels of  inventories of  RespiGgam at wholesalers  and  hospitals.  CytoGam  
sales decreased 10% to $9.7 million in the 1999  quarter from $10.8  million in 
first quarter 1998 reflecting a change in  the  sales  mix  of  domestic  versus
international  units,  (international  units have a lower selling  price) and an
increase in government rebate allowances, offset by a 9% increase in total units
sold.  Product sales in the 1999 quarter also include $0.8 million of by-product
sales.  Other  revenues  in the 1999  first  quarter of $1.7  million  primarily
reflect  payments from SmithKline  Beecham ("SKB") for development of a human
papillomavirus  vaccine  while the 1998 quarter  included a $15.0 million
payments from SKB upon signing of the collaborative alliance.

Gross  margins  improved  to 75% in the first  quarter of 1999 versus 48% in the
first quarter of 1998. Gross margins in 1999 were favorably  impacted by Synagis
sales,  which  carry a  significantly  lower  per-unit  cost than the  Company's
plasma-derived products.

Research, development and clinical spending increased 55% to $8.8 million in the
first quarter of 1999 from $5.7 million in the first  quarter of 1998.  Expenses
in 1999 include costs of the Company's  congenital  heart disease clinical trial
using Synagis and various clinical studies relating to MEDI-507, the Company's
anti-CD2 monoclonal antibody.  

Selling,  administrative and general expenses increased to $37.0 million in this
year's  quarter from $12.9  million in the 1998  quarter,  an increase of 187%.
Expenses in 1999 include  increased  marketing  and selling  expenses as well as
commission  charges and co-promotion  expenses to the Ross Products  Division of
Abbott  Laboratories,  all in connection with the launch and continued promotion
of  Synagis.  Marketing,  selling  and  co-promotion  expenses  for  Synagis are
expected to continue to be higher than those for RespiGam or CytoGam.

                                       8
<PAGE>

Other operating  expenses of $5.9 million in the 1999 period increased from $5.8
million in the 1998 period.  Costs in 1998 include  scale-up of  production  for
Synagis at a  third-party  manufacturer  as well as start-up  activities  at the
Company's pilot plant and Frederick Manufacturing Center ("FMC"), while costs in
1999 include ongoing start-up and validation activities at the FMC.

Interest  income of $2.2 million was earned in the 1999 first quarter,  compared
to $1.7 million in the first  quarter of 1998  reflecting  higher cash  balances
available for investment, partially offset by a decrease in interest rates which
lowered the overall  portfolio yield.  Interest expense of $1.0 million and $1.2
million was  incurred in the 1999 and 1998  quarters,  respectively,  reflecting
primarily  interest due on the Company's  convertible  debt,  net of capitalized
interest.

An income tax  provision of $18.2  million was recorded for the first quarter of
1999. No income tax provision was recorded in the first quarter of 1998,  due to
the  existence  of net  operating  loss  carryforwards  as well  as  uncertainty
surrounding achievement of profitability for the entire year.

Net earnings in the 1999 first  quarter were $28.8  million,  or $0.52 basic and
$0.45  diluted  earnings per share.  Shares used in computing  basic and diluted
earnings per share in 1999 were 55.2 million and 65.5 million, respectively. Net
earnings  for the first  quarter  of 1998  were  $0.25  basic and $0.22  diluted
earnings  per share.  Shares used in  computing  basic and diluted  earnings per
share in 1998 were 51.9 million, and 63.2 million shares, respectively.

Quarterly financial results may vary significantly due to seasonality of Synagis
product sales as well as  fluctuations  in CytoGam  sales,  milestone  payments,
research  funding and  expenditures  for research,  development  and  marketing.
Synagis sales are expected to occur primarily  during,  and in proximity to, the
RSV  season,   which  typically  occurs  in  the  Northern Hemisphere  between
October and April. The Company believes that most of the Synagis needed for the 
1998/1999 RSV season in the U.S. was purchased prior to the end of the first
quarter 1999, and therefore, no further significant sales are expected for this
season.

LIQUIDITY AND CAPITAL RESOURCES

Cash and marketable securities at March 31, 1999 were $194.1 million compared to
$134.9  million at 1998 year end. Net cash  provided by operating  activities in
the  three  months  ended  March  31,  1999 was  $61.0  million,  reflecting
primarily  the net  earnings  for the 1999  quarter  and an  increase in accrued
expenses and royalties  payable.  Capital  expenditures of $1.6 million,  net of
capitalized  interest,  for the quarter were  primarily  for lab  equipment  and
facilities   expansion   and   improvements   at  the   Company's   Gaithersburg
manufacturing facility. The Company's existing funds at March 31, 1999, together
with funds expected to be generated  from product sales and  investment  income,
are expected to provide  sufficient  liquidity to meet the anticipated  needs of
the business for the foreseeable future, absent the occurrence of any unforeseen
events.

                                       9
<PAGE>

YEAR 2000 READINESS

The  Company  has   established   a  Year  2000   Project   Team   comprised  of
representatives  from key functional  areas to complete a review of its internal
and external systems for Year 2000 readiness. The Year 2000 issue is expected to
affect the systems of the Company  and various  entities  with which the Company
interacts,  including the Company's  marketing  partners,  suppliers and various
vendors.  The Year 2000 Project is designed to address  three major  areas:  (1)
information  technology systems,  (2) hardware,  equipment and  instrumentation,
including  embedded systems,  and (3) third party  relationships.  The Company's
plan involves  inventorying,  assessing and prioritizing  those items which have
Year  2000  implications;   remediating  (repairing,   replacing  or  upgrading)
non-compliant items; testing items with major exposure to ensure compliance; and
developing  contingency plans to minimize potential business  interruption.  The
inventory,  assessment and prioritization  phase of the project is substantially
complete.

With regard to the Company's information technology systems, hardware, equipment
and   instrumentation,   the  Company  has  identified   mission   critical  and
non-critical items and is in the process of updating and/or replacing items that
are non-compliant.  The Company believes that it should be able to substantially
complete  implementation  of critical aspects of its Year 2000 plan prior to the
commencement  of the year 2000.  Because  the Company  has relied  primarily  on
off-the-shelf  software for its information technology needs and because much of
the hardware,  equipment and instrumentation is currently compliant, the Company
does not  anticipate  that the costs for  internal  remediation  efforts will be
significant.  The Company does not  separately  track the internal  costs of its
Year 2000 compliance efforts and therefore these costs are unknown.  As of March
31,  1999,  the  Company  estimates  that  it has  spent  no more  than  $75,000
replacing,  upgrading  or  repairing  the  systems  and/or  equipment  that  are
non-compliant  and expects the cost to complete  these efforts should not exceed
$300,000. The Company presently anticipates that its remediation efforts will be
substantially  complete by June 1, 1999.  Testing of certain  business  critical
items is expected to be completed by the third quarter 1999.

In addition to the risks  associated with the Company's own computer systems and
equipment,  the  Company  has  relationships  with,  and is in  varying  degrees
dependent upon, a large number of third parties that provide information,  goods
and services to the Company.  These include, but are not limited to, third party
manufacturers,   suppliers,   customers,  and  distributors.   The  Company  has
identified and visited the facilities of third parties with whom the Company has
material relationships to assess their Year 2000 readiness. Critical systems and
Year 2000 plans were  reviewed.  The Company may also be affected by the failure
of other third parties to be Year 2000 compliant even if they do not do business
directly  with the  Company.  For  example,  the  failure of state,  federal and
private  payers or reimbursers to be Year 2000 compliant and thus unable to make
timely,  proper or  complete  payments  to  sellers  and users of the  Company's
products,  could have a material  adverse effect on the Company. 

                                       10
<PAGE>

The Company does not currently have a Year 2000  contingency  plan  established.
The Company expects to have finalized a contingency  plan which will address the
most likely  worst case Year 2000  scenario by mid- 1999.  The Company  believes
that its most likely worst case  scenario  would be delays in product  shipments
due to a complete or partial manufacturing  shutdown. To mitigate this risk, the
Company plans, among other things, to stock extra inventory.

With  regard  to  the  Company's  Year  2000  readiness  plan,  there  can be no
assurances:  1) that the  Company  will be able to  identify  all aspects of its
business  that are  subject  to Year  2000  problems,  including  issues  of its
customers or suppliers,  2) that the Company's  software vendors,  third parties
and others will be correct in their assertions that they are Year 2000 ready, 3)
that the  Company's  estimate  of the cost of Year  2000  readiness  will  prove
ultimately  to be  accurate,  4) that the Company  will be able to  successfully
address its Year 2000 issues and that this could result in interruptions  in, or
failures of, certain normal  business  activities or operations  that may have a
material  adverse  effect on the Company's  business,  results of operations and
financial condition.


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

THE STATEMENTS IN THIS QUARTERLY  REPORT THAT ARE NOT DESCRIPTIONS OF HISTORICAL
FACTS ARE  FORWARD-LOOKING  STATEMENTS.  SUCH  STATEMENTS  REFLECT  MANAGEMENT'S
CURRENT  VIEWS,  ARE BASED ON CERTAIN  ASSUMPTIONS  AND ARE SUBJECT TO RISKS AND
UNCERTAINTIES, INCLUDING BUT NOT LIMITED TO, REGULATORY APPROVAL TIMING, PRODUCT
DEMAND AND MARKET ACCEPTANCE RISKS, PATENT AND INTELLECTUAL PROPERTY RISKS, YEAR
2000 RISKS,  THE EARLY STAGE OF PRODUCT  DEVELOPMENT AND RELIANCE ON THIRD-PARTY
MANUFACTURERS  INCLUDING,  BUT NOT LIMITED TO, CAPACITY AND SUPPLY  CONSTRAINTS,
PRODUCTION  YIELDS,  REGULATORY  APPROVAL TIMING AND FOREIGN  EXCHANGE RISKS, AS
WELL AS OTHER RISKS  DETAILED IN THE COMPANY'S  FILINGS WITH THE  SECURITIES AND
EXCHANGE COMMISSION. ACTUAL RESULTS COULD DIFFER MATERIALLY FROM THOSE CURRENTLY
ANTICIPATED AS A RESULT OF THE FOREGOING OR OTHER FACTORS.







                                     PART II
                                OTHER INFORMATION

Item 1.   Legal Proceedings - None

Item 2.   Changes in Securities - None

Item 3.   Defaults upon Senior Securities - None

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
          (a)  Exhibits:

                                       11
<PAGE>

          10.95     Research and Assignment and License Agreement, dated as
                    of February 24, 1999 by and between IXSYS, Inc. and
                    MedImmune, Inc.
          10.96     License Agreement, dated as of February 24, 1999 by and
                    between IXSYS, Inc. and MedImmune, Inc.
          10.97     Selection Agreement, dated as of February 24, 1999 by
                    and between IXSYS, Inc. and MedImmune, Inc.
          10.98     Stock Purchase Agreement, dated as of February 24, 1999
                    by and between IXSYS, Inc. and MedImmune, Inc.


          b)   Reports on Form 8-K:
<TABLE>
<CAPTION>
               <C>          <S>
               Report Date  Event reported
               2/1/99       MedImmune Reports Record Year

               2/26/99      MedImmune and IXSYS Enter Four Product
                                Antibody Alliance

</TABLE>

                                   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.

                                 MEDIMMUNE, INC.
                                  (Registrant)




Date: May 14, 1999           /s/David M. Mott
                             Vice Chairman and Chief Financial Officer

                                      12



                            

Exhibit 10.95



          RESEARCH AND ASSIGNMENT AND LICENSE AGREEMENT

     This Research and Assignment and License Agreement (this

"Agreement") is effective as of February 24, 1999 ("the EFFECTIVE

DATE") by and between Ixsys, Inc., a Delaware corporation, having

an address at 3520 Dunhill Road, San Diego, CA 92121 ("IXSYS"),

and MedImmune, Inc., a Delaware Corporation, having offices at 35

West Watkins Mill Road, Gaithersburg, MD 20878 ("MEDIMMUNE").

     WHEREAS, MEDIMMUNE desires that IXSYS perform certain

research and development to modify a certain antibody; and

     WHEREAS, IXSYS desires to perform such work on the terms and

conditions of this Agreement.

     NOW THEREFORE in consideration of the mutual promises and

other good and valuable consideration, the parties agree as

follows:



     SECTION 1 - Definitions.

     The terms used in this Agreement have the following meaning:

     1.1  "AFFILIATE," as applied to a person or entity, means

any other person or entity controlling or controlled by or under

common control with such person or entity.  The term "control"

means possession of the power to direct or cause the direction of

the management and policies whether through the ownership of

voting securities, by contract or otherwise.  The ownership of

voting securities of a person, organization or entity, however,

shall not, in and of itself, constitute "control" for purposes of

this definition, unless said ownership is of a majority of the

outstanding securities entitled to vote of such person,

organization or entity.  Affiliate shall also mean a limited

partnership in which a subsidiary of such person, organization or

entity is a general partner.

     1.2  "ANTIBODY" means an antibody that specifically binds to

(CONFIDENTIAL TREATMENT REQUESTED) (including, but not limited

to, variants, chimeric antibodies, humanized antibodies,

recombinant antibodies, grafted antibodies, single chain

antibodies, and the like) developed by IXSYS during the term of

the PROGRAM or a fragment of such an antibody.

     1.3  "ASSIGNED MATERIALS AND INFORMATION" means all

ANTIBODIES, cell lines used by IXSYS for producing ANTIBODIES,

polynucleotides encoding ANTIBODIES, assays, vectors and

constructs for producing ANTIBODIES, sequence information

regarding such ANTIBODIES and polynucleotides, and the results of

the testing and evaluation of such ANTIBODIES and information and

data useful for the manufacture, making and use of ANTIBODY, in

each case which is developed by IXSYS during the term of the

PROGRAM, and only in the case of assays, vectors and constructs,

only to the extent IXSYS or its AFFILIATES has the right during

the term of the PROGRAM to assign such to MEDIMMUNE.

     1.4  "ASSIGNED PATENT(S)" means any patent or patent

application (or equivalents thereof, such as extensions or other

rights that give the right to exclude others such as

Supplementary Protection Certificates) anywhere in the world to

the extent a claim thereof would be infringed by the manufacture,

use, or sale of a product comprising an ANTIBODY and that is

based on ANTIBODY and/or ASSIGNED MATERIALS AND INFORMATION.

     1.5  "DESIGNATED AMOUNT" means the total worldwide sales of

products comprising the EXISTING ANTIBODY sold by or on behalf of

MEDIMMUNE for the twelve-month period prior to the time a PRODUCT

receives all licensing and pricing approvals for sale of PRODUCT

in a country.

     1.6  (CONFIDENTIAL TREATMENT REQUESTED) means (CONFIDENTIAL

TREATMENT REQUESTED).

     1.7  "EXISTING IXSYS PATENT(S)" means any patent or patent

application (or equivalents thereof, such as extensions or other

rights that give the right to exclude others such as

Supplementary Protection Certificates) anywhere in the world to

the extent the claims of which would be infringed by the

manufacture, use or sale of a product comprising an ANTIBODY, and

only to the extent that it is either owned by or licensed to

IXSYS (with the right to grant sublicenses) or as to which IXSYS

otherwise has licensable rights, in each case, as of the

EFFECTIVE DATE.

     1.8  "FIRST COMMERCIAL SALE" means, in each country, (a) the

first sale of a PRODUCT by MEDIMMUNE, its AFFILIATE or

SUBLICENSEE following approval of its marketing by the

appropriate governmental agency for the country in which the sale

is to be made, or (b) when governmental approval is not required,

the first commercial sale of a PRODUCT by MEDIMMUNE, its

AFFILIATE or SUBLICENSEE in that country.

     1.9  "FTE"  means one full time equivalent scientific

investigator, together with all reasonably necessary materials,

equipment and facilities used thereby.

     1.10 "MATERIALS" means ANTIBODIES, cell lines used or

developed by IXSYS for producing ANTIBODIES, polynucleotides

encoding ANTIBODIES, and the assays, vectors and constructs for

producing ANTIBODIES, in each case only to the extent owned by or

licensed to IXSYS (with the right to grant sublicenses) or as to

which IXSYS otherwise has transferable rights, and in the

possession and control of IXSYS, in each case, that exists as of

the EFFECTIVE DATE.

     1.11 "NET SALES" means, with respect to any PRODUCT, the

invoiced sales price of such PRODUCT sold by MEDIMMUNE, its

AFFILIATES and SUBLICENSEES to independent customers who are not

AFFILIATES, less (a) actual and customary credits, allowances,

discounts and rebates to, and chargebacks from the account of,

such independent customers for spoiled, damaged, out-dated,

rejected or returned PRODUCT; (b) actual freight and insurance

costs incurred in transporting such PRODUCT to such customers;

(c) actual and customary cash, quantity and trade discounts;

(d) sales, use, value-added and taxes or governmental charges

(excluding what is commonly known as income taxes) incurred in

connection with the exportation or importation of such PRODUCT;

(e) the cost to MEDIMMUNE of the devices for dispensing or

administering such PRODUCT as well as diluents or similar

materials which accompany such PRODUCT as it is sold and (f)

reasonable allowance for bad debt, all of the above in accordance

with Generally Accepted Accounting Principles.  For purposes of

determining NET SALES, a sale shall have occurred when an invoice

therefor shall be generated or the PRODUCT shipped for delivery.

Sales of PRODUCTS by MEDIMMUNE, an AFFILIATE or SUBLICENSEE to

any AFFILIATE or SUBLICENSEE which is a reseller thereof shall be

excluded, and only the subsequent sale of such PRODUCTS by

AFFILIATES or SUBLICENSEES to unrelated parties  shall be deemed

NET SALES hereunder.

     1.12 "PRODUCT" means  a product comprising (i) an ANTIBODY,

the manufacture, use or sale of which infringes a VALID PATENT

CLAIM under the ASSIGNED PATENTS or under the EXISTING IXSYS

PATENTS as to which MEDIMMUNE retains a license under this

Agreement, (ii) an ANTIBODY assigned to MEDIMMUNE by IXSYS under

this Agreement, or (iii) an ANTIBODY which is derived from an

ANTIBODY assigned to MEDIMMUNE under this Agreement.

     1.13 "PROGRAM" means the research and development program

described generally in Section 2.1.

     1.14 "ROYALTY PERIOD" means, with respect to each PRODUCT in

each country in the LICENSED TERRITORY, (a) if the manufacture,

use, offer for sale, sale or import of such PRODUCT in such

country at the time of the FIRST COMMERCIAL SALE infringes a

VALID PATENT CLAIM (if in an issued patent) but for the license

granted by this Agreement, the royalty period continues for as

long as such VALID PATENT CLAIM remains in effect and (if in an

issued patent) is infringed thereby but for the license granted

by this Agreement, or (b) otherwise, (CONFIDENTIAL TREATMENT

REQUESTED) years from the date of the FIRST COMMERCIAL SALE of

such PRODUCT in such country.

     1.15 (CONFIDENTIAL TREATMENT REQUESTED)

     1.16 "SUBLICENSEE" means any AFFILIATE or THIRD PARTY that

is granted a sublicense by MEDIMMUNE under this Agreement.

     1.17 "THIRD PARTY(IES)" means a person or entity other than

IXSYS or MEDIMMUNE or any of their AFFILIATES.

     1.18 The term "VALID PATENT CLAIM" shall mean either (a) a

claim of an issued and unexpired patent included within the

ASSIGNED PATENTS or the EXISTING IXSYS PATENTS, which has not

been held permanently revoked, unenforceable or invalid by a

decision of a court or other governmental agency of competent

jurisdiction, unappealable or unappealed within the time allowed

for appeal, and which has not been admitted to be invalid or

unenforceable through reissue or disclaimer or otherwise or (b) a

claim of a pending patent application included within the

ASSIGNED PATENTS or the EXISTING IXSYS PATENTS, which claim was

filed in good faith and has not been abandoned or finally dis

allowed without the possibility of appeal or refiling of such

application, the subject matter of which has not been pending for

more than five (5) years, including the pendency of any prior

application.

     1.19 The use herein of the plural shall include the

singular, and the use of the masculine shall include the

feminine.

     1.20 All dollars are United States Dollars.



     SECTION 2 - The PROGRAM

     2.1  (a)  IXSYS shall perform a program of research and

development in accordance with this Section 2 to produce modified

antibodies to the (CONFIDENTIAL TREATMENT REQUESTED), and shall

use its commercially reasonable efforts to produce a modified

antibody of the (CONFIDENTIAL TREATMENT REQUESTED) that

(CONFIDENTIAL TREATMENT REQUESTED) as compared to (CONFIDENTIAL

TREATMENT REQUESTED), as measured in the (CONFIDENTIAL TREATMENT

REQUESTED) model.

          (b)  The parties shall prepare a mutually acceptable

written workplan for the PROGRAM.  Any such workplan shall be

modified and supplemented from time to time only by the mutual

written agreement of the parties.

          (c)  The research and development work to be performed

by IXSYS under the PROGRAM shall not be performed by a THIRD

PARTY without the written approval of MEDIMMUNE.

          (d)  IXSYS shall allocate not less than (CONFIDENTIAL

TREATMENT REQUESTED)  FTEs to conduct the PROGRAM and at the

request of MEDIMMUNE upon sixty (60) days' prior written notice,

IXSYS shall be required to allocate up to (CONFIDENTIAL TREATMENT

REQUESTED) FTEs to conduct the PROGRAM, provided that once the

FTEs are increased, MEDIMMUNE will not have the right to decrease

the number of FTEs.

          (e)  The PROGRAM shall commence on the date thirty (30)

days after the EFFECTIVE DATE and continue for a term of

(CONFIDENTIAL TREATMENT REQUESTED) thereafter provided however at

the request of MEDIMMUNE, and upon sixty (60) days' prior written

notice to IXSYS, the term shall be extended for up to

(CONFIDENTIAL TREATMENT REQUESTED) in (CONFIDENTIAL TREATMENT

REQUESTED) increments.

     2.2  It is understood that MEDIMMUNE intends to measure the

potency of ANTIBODY obtained from IXSYS in the (CONFIDENTIAL

TREATMENT REQUESTED) model to determine the potency thereof with

a view toward developing and commercializing such an ANTIBODY. It

is further understood and agreed that ANTIBODY obtained from

IXSYS that is tested, if any, shall be determined by MEDIMMUNE,

within its sole and absolute discretion, that MEDIMMUNE, within

its sole and absolute discretion, shall determine whether or not

to develop and/or commercialize a PRODUCT and which, if any,

PRODUCT shall be developed and commercialized and in which, if

any, countries it should be developed and commercialized.

     2.3  (a)  MEDIMMUNE shall pay IXSYS at the rate equal to

(CONFIDENTIAL TREATMENT REQUESTED) per FTE required to be

allocated to the PROGRAM as set forth above, payable in equal

quarterly installments of (CONFIDENTIAL TREATMENT REQUESTED) per

FTE per quarter in advance on the EFFECTIVE DATE and each three

(3) month anniversary thereof during the term of the PROGRAM for

the period of Section 2.1(e) which amount covers both direct and

indirect expenses.  If the number of FTEs is increased in any

quarter, the pro-rata amount for such quarter for such increase

shall be paid for the remainder of such quarter (and provided

that such payment shall be due on the effective date of such

increase if the notice and effective date of such increase is in

the same calendar quarter).

          (b)  MEDIMMUNE shall not be required to make any

payments to IXSYS for research that exceeds the aggregate amount

described in Section 2.3(a), and IXSYS shall not be required to

perform research or development under the PROGRAM that exceeds

such aggregate amount, unless agreed to in writing by both

parties.

     2.4  Within ten (10) days after the EFFECTIVE DATE,

MEDIMMUNE shall provide IXSYS with such quantity (as reasonably

sufficient to enable IXSYS to conduct the PROGRAM) of the

(CONFIDENTIAL TREATMENT REQUESTED), polynucleotides encoding the

(CONFIDENTIAL TREATMENT REQUESTED) and (CONFIDENTIAL TREATMENT

REQUESTED), the (CONFIDENTIAL TREATMENT REQUESTED) and together

with any other information and data which the parties mutually

agree is reasonably necessary for IXSYS to conduct the PROGRAM.

Additionally, during the term of the PROGRAM, MEDIMMUNE shall

provide IXSYS, at MEDIMMUNE's sole cost, with such technical

assistance as IXSYS reasonably requests regarding the use of such

assay under the PROGRAM.

     2.5  During the term of the PROGRAM, IXSYS shall permit

representatives of MEDIMMUNE, upon reasonable notice during

normal business hours at MEDIMMUNE's expense, to visit the

facilities where IXSYS is conducting the PROGRAM and during such

visits shall make employees of IXSYS, who are performing research

and development under the PROGRAM, reasonably available to

representatives of MEDIMMUNE to discuss such research and

development and the results thereof.

     2.6  Not later less than once each calendar quarter during

the term of the PROGRAM, and not more than thirty (30) days after

conclusion of the term of the PROGRAM, IXSYS, at the cost and

expense of IXSYS, shall transfer to MEDIMMUNE the ASSIGNED

MATERIALS AND INFORMATION and any other MATERIALS not previously

transferred to MEDIMMUNE hereunder.

     2.7  For a period of six (6) months after the conclusion of

the term of the PROGRAM, IXSYS, at the cost and expense of IXSYS,

shall provide MEDIMMUNE with such technical assistance as

reasonably requested by MEDIMMUNE with respect to the use of the

ASSIGNED MATERIALS AND INFORMATION, and MATERIALS hereunder.

     2.8  Except as permitted by MEDIMMUNE, during the term of

the PROGRAM and for a period of (CONFIDENTIAL TREATMENT

REQUESTED) years thereafter, IXSYS and its AFFILIATES shall not

(1) research, develop, make, have made, use or sell any antibody

or any antibody fragment directed to (CONFIDENTIAL TREATMENT

REQUESTED) or any polynucleotide encoding the foregoing, (2)

perform research or development work for a THIRD PARTY with

respect to any such antibody, fragment or polynucleotide , or (3)

research, develop, make, have made, use or sell or grant rights

to a THIRD PARTY with respect to any such antibody, fragment or

polynucleotide that was conceived or reduced to practice during

the term of the PROGRAM or within a period of (CONFIDENTIAL

TREATMENT REQUESTED) years thereafter.

     2.9  IXSYS shall have the right to publish the results of

IXSYS' work under the PROGRAM; provided, however, that IXSYS

shall provide MEDIMMUNE the opportunity to review any proposed

manuscripts or any other proposed disclosure describing such work

sixty (60) days prior to their submission for publication or

other proposed disclosure.  MEDIMMUNE and IXSYS shall discuss

whether or not such publication or disclosure should occur and it

is expressly understood that MEDIMMUNE shall have the sole right

to make a final determination as to whether or not such

publication or disclosure shall occur provided that such

determination is not unreasonable.  It shall not be unreasonable

to deny publication on the basis that the information proposed to

be published is not generally available to the public and may aid

a competitor in developing a competitive product.



     SECTION 3 - Assignment and License Grants.

     3.1  (a)  IXSYS hereby grants to MEDIMMUNE and MEDIMMUNE

hereby accepts from IXSYS a sole and exclusive worldwide right

and license (or sublicense, as applicable) (1) under and to

EXISTING IXSYS PATENTS to research, develop, make, have made,

use, import, export and sell, offer to sell or have sold PRODUCTS

and (2) to make, have made and to use MATERIALS for all the

purposes of Section 3.1(a)(1).  Notwithstanding anything to the

contrary in this Agreement, the rights and licenses granted to

MEDIMMUNE under this Agreement exclude any right or license

(express or implied) under any IXSYS patent rights or know-how

regarding the generation, discovery or modification of antibody

libraries, antibodies or fragments thereof, generally.

          (b)  To the extent that the rights and licenses granted

to MEDIMMUNE under Section 3.1(a) is a sublicense under a license

agreement between IXSYS and a THIRD PARTY, the rights and

licenses granted to MEDIMMUNE under such sublicense are limited

to the extent that IXSYS has the right to grant sublicenses under

such license agreement and such sublicense is subject to the

terms, conditions and restrictions of such license agreement that

are applicable to a sublicensee thereunder.  MEDIMMUNE shall not

take or omit to take any action the effect of which would cause

IXSYS to be in breach of  IXSYS' obligations under such license

agreements (without regard to any applicable cure or notice

requirements thereof).

     3.2  MEDIMMUNE shall have the right to grant sublicenses

under the licenses and sublicenses granted under Section 3.1

(with the right to grant further sublicenses, subject to any

terms, conditions and restrictions on further sublicensing under

any license agreement under which MEDIMMUNE is a sublicensee) to

its AFFILIATES and THIRD PARTIES.  Each such sublicense shall be

subject to the terms and conditions of this Agreement.

     3.3  The licenses granted hereunder include the right of

MEDIMMUNE, its AFFILIATES and SUBLICENSEES to grant to the

purchaser thereof the right to use and/or resell a purchased

PRODUCT for which a royalty has been paid hereunder on NET SALES

of such PRODUCT (determined in accordance with Section 1.11),

without payment of any further royalty to IXSYS.

     3.4  (a)  IXSYS agrees to assign and hereby assigns to

MEDIMMUNE all right, title and interest in and to the ASSIGNED

MATERIALS AND INFORMATION together with all ASSIGNED PATENTS and

other intellectual property rights arising therefrom.

          (b)  IXSYS agrees to cooperate with MEDIMMUNE and cause

its employees to cooperate with MEDIMMUNE and to perform all

acts, at MEDIMMUNE's request on reasonable notice and during

normal business hours, as reasonably necessary (i) to perfect

MEDIMMUNE's ownership interest in and to the ASSIGNED MATERIALS

AND INFORMATION together with all ASSIGNED PATENTS and other

intellectual property rights arising therefrom, and (ii) to

facilitate the preparation, filing, prosecution and enforcement

of the ASSIGNED PATENTS.  MEDIMMUNE shall reimburse IXSYS on

demand for the reasonable cost to IXSYS (at the rate set forth in

Section 2.3(a) plus all out-of-pocket expenses) incurred in

connection therewith.

          (c)  IXSYS hereby reserves the nonexclusive,

nontransferable right to use  information and data that are

included in ASSIGNED MATERIALS AND INFORMATION for its own

internal research use; provided, however, that IXSYS shall not

use the ASSIGNED MATERIALS AND INFORMATION to make, have made,

use or sell any antibody directed to (CONFIDENTIAL TREATMENT

REQUESTED), or perform research or development work for a THIRD

PARTY with respect to any such antibody.



     SECTION 4 - Confidentiality.

     4.1  During the term of this Agreement, IXSYS agrees not to

provide or disclose to a THIRD PARTY any MATERIALS without the

written permission of MEDIMMUNE.

     4.2  After the date of this Agreement, subject to Section

2.9, IXSYS agrees not to provide or disclose to a THIRD PARTY any

ASSIGNED MATERIALS AND INFORMATION without the written permission

of MEDIMMUNE.

     4.3  During the term of this Agreement, it is contemplated

that each party will disclose to the other party confidential

information which is owned or controlled by the party providing

such information or which that party is obligated to maintain in

confidence and which is designated by the party providing such

information as confidential ("Confidential Information").  Each

party shall have the right to refuse to accept the other party's

Confidential Information.  Each party agrees to retain the other

party's Confidential Information in confidence, to limit

disclosure of any such Confidential Information to its officers,

directors, employees, consultants, sublicensees and permitted

assigns on a need to know basis, to use the other party's

Confidential Information only for the purposes of this Agreement,

and not to disclose any such Confidential Information to any

other person or entity without the prior written consent of the

party providing such Confidential Information.  For the avoidance

of doubt ASSIGNED MATERIALS AND INFORMATION are Confidential

Information of MEDIMMUNE.

     4.4  The obligations of confidentiality and non-use of

Sections 4.1, 4.2 and 4.3 will not apply to:

                    (i)  Confidential Information generally known

               to the public prior to its disclosure hereunder;

               or

                    (ii) Confidential Information that

               subsequently becomes known to the public by some

               means other than a breach of this Agreement;

                    (iii)     Confidential Information that is

               subsequently disclosed to the receiving party by a

               third party having a lawful right to make such

               disclosure; or

                    (iv) is approved for release by the parties.

     4.5  Neither party shall disclose any terms or conditions of

this Agreement to any third party without the prior consent of

the other party; provided, however, that a party may disclose the

terms or conditions of this Agreement, (a) on a need-to-know

basis to its legal and financial advisors to the extent such

disclosure is reasonably necessary in connection with such

party's activities expressly permitted by this Agreement and

ordinary and customary business operations, and (b) to a third

party in connection with (i) an equity investment in such party,

(ii) a merger, consolidation, change in control or similar

transaction by such party, or (iii) the transfer or sale of all

or substantially all of the assets of such party.

Notwithstanding the foregoing, prior to execution of this

Agreement the parties have agreed upon the substance of

information that may be used to describe the terms and conditions

of this transaction, and each party may disclose such

information, as modified by mutual written agreement of the

parties, without the consent of the other party.

     4.6  The obligations of this Section 4 shall not apply to

the extent that a party is required to disclose information by

applicable law, regulation or bona fide legal process, provided

that the party required to make the disclosure takes reasonable

steps to restrict and maintain confidentiality of such disclosure

and provides reasonable prior notice to the other party.

     4.7  Notwithstanding the foregoing, MEDIMMUNE shall have the

right to disclose Confidential Information of IXSYS to a THIRD

PARTY with whom MEDIMMUNE has or proposes to enter into a

business relationship and who undertakes an obligation of

confidentiality and non-use with respect to such information, at

least as restrictive as the obligation under this Section 4.

     4.8  The parties' obligations under this Section 4 shall

terminate five (5) years after the expiration or termination of

this Agreement.



     SECTION 5 - Royalties.

     5.1  During the ROYALTY PERIOD, MEDIMMUNE shall pay

royalties to IXSYS for PRODUCTS as follows:

          (a)  (CONFIDENTIAL TREATMENT REQUESTED) of that portion

of NET SALES of PRODUCTS in a calendar year up to the DESIGNATED

AMOUNT;

          (b)  (CONFIDENTIAL TREATMENT REQUESTED) of that portion

of NET SALES of PRODUCTS in a calendar year above the DESIGNATED

AMOUNT.

          The cumulative NET SALES for a calendar year shall be

calculated based on worldwide NET SALES.

     5.2  In the event that a PRODUCT is sold in combination with

a therapeutically active component that is not a PRODUCT (such

combination being a "Combination Product"), then NET SALES of

such Combination Product upon which a royalty is paid shall be

subject to the following adjustment.  If the PRODUCT and the

other therapeutically active component are sold separately in a

country, then NET SALES of such Combination Product in such

country upon which a royalty is paid shall be multiplied by the

fraction A/A+B, where A equals the average sales price of such

PRODUCT sold separately in such country, and B equals the average

sales price of the other therapeutically active component sold

separately in such country.  Otherwise, the parties shall enter

into good faith negotiations and attempt to reach mutual

agreement to determine an appropriate adjustment to the NET SALES

of such Combination Product in a country to reflect the relative

contributions of the PRODUCT and the other therapeutically active

component to the value of the Combination Product in such

country.  If such mutual agreement is not reached within ninety

(90) days after commencement of such negotiations, then the NET

SALES of such Combination Product in such country shall be

determined by binding arbitration under Section 11.2.

     5.3  MEDIMMUNE shall keep, and shall cause each of its

AFFILIATES and SUBLICENSEES to keep, full and accurate books of

account containing all particulars that may be necessary for the

purpose of calculating all royalties payable to IXSYS.  Such

books of account, with all necessary supporting data, shall be

kept at their principal place of business, and for the three (3)

years next following the end of the calendar year to which each

pertains, shall be open for inspection by an independent

certified accountant selected by IXSYS and reasonably acceptable

to MEDIMMUNE upon reasonable notice during normal business hours

at IXSYS' expense for the sole purpose of verifying royalty

statements or compliance with this Agreement, but in no event

more than once in each calendar year.  All information and data

offered shall be used only for the purpose of verifying royalties

and shall be treated as MEDIMMUNE Confidential Information

subject to the obligations of this Agreement.

     5.4  With each quarterly payment, MEDIMMUNE shall deliver to

IXSYS a full and accurate accounting of the calculation of the

royalties owing hereunder to include at least the following

information:

          (a)  Quantity of each PRODUCT subject to royalty sold

(by country) by MEDIMMUNE, its AFFILIATES and SUBLICENSEES;

          (b)  NET SALES for each PRODUCT (by country);

          (c)  The calculation of the gross royalties (before

deductions) for each PRODUCT (by country) and any deductions,

offsets and credits therefrom; and

          (d)  Total royalties payable to IXSYS for each PRODUCT

(by country) and the total royalties payable to IXSYS for all

PRODUCTS (for all countries).

     5.5  In each year the amount of royalty due shall be

calculated quarterly as of March 31, June 30, September 30 and

December 31 (each being the last day of an "ACCOUNTING PERIOD")

and shall be paid quarterly within the sixty (60) days next

following such date.  Every such payment shall be supported by

the accounting prescribed in Section 5.4 and shall be made in

United States currency.  Whenever for the purpose of calculating

royalties conversion from any foreign currency shall be required,

such conversion shall be at the average of the rate of exchange

(local currency per US$1) published in the Western Edition of The

Wall Street Journal under the caption "Currency Trading" for the

last business day of each month during the applicable ACCOUNTING

PERIOD.

     5.6  If the transfer of or the conversion into United States

Dollar equivalent of any remittance due hereunder is not lawful

or possible in any country, such remittance shall be made by the

deposit thereof in the currency of the country to the credit and

account of IXSYS or its nominee in any commercial bank or trust

company located in that country, prompt notice of which shall be

given to IXSYS.  IXSYS shall be advised in writing in advance by

MEDIMMUNE and provide to MEDIMMUNE a nominee, if so desired.

     5.7  Any tax required to be withheld by MEDIMMUNE under the

laws of any foreign country for the account of IXSYS shall be

promptly paid by MEDIMMUNE for and on behalf of IXSYS to the

appropriate governmental authority, and MEDIMMUNE shall furnish

IXSYS with proof of payment of such tax.  Any such tax actually

paid on IXSYS' behalf shall be deducted from royalty payments due

IXSYS.

     5.8  Only one royalty shall be due and payable under each of

the applicable subsections under this Section 5 for the

manufacture, use and sale of a PRODUCT irrespective of the number

of patents or claims thereof which cover the manufacture, use and

sale of such PRODUCT.

     5.9  (a)  MEDIMMUNE shall pay to IXSYS the following

milestone payments upon the occurrence of the following events

with respect to a PRODUCT:

     Event                                                  Payment

      (i) Demonstration in the (CONFIDENTIAL TREATMENT
     REQUESTED) model that a PRODUCT has a (CONFIDENTIAL
     TREATMENT REQUESTED) as compared to (CONFIDENTIAL
     TREATMENT REQUESTED)                                   $  (CTR)

      (ii) Demonstration in the (CONFIDENTIAL TREATMENT
      REQUESTED) model that a PRODUCT has a (CONFIDENTIAL
      TREATMENT REQUESTED) as compared to (CONFIDENTIAL
      TREATMENT REQUESTED)                                  $  (CTR)

      (iii) Filing an IND (or its foreign equivalent)
      for a PRODUCT                                         $  (CTR)

      (iv) Obtains approval of a Biologics License
       Application (or its foreign equivalent) for a
       PRODUCT                                              $  (CTR)

          (b)  The milestone payments under Section 5.9(a) are

due and payable sixty (60) days after the applicable milestone

occurs.

          (c)  (CONFIDENTIAL TREATMENT REQUESTED) of all

milestone payments paid under Section 5.9(a) are creditable

against up to (CONFIDENTIAL TREATMENT REQUESTED) of each  royalty

payment that is to be made pursuant to Section 5.1 until the full

amount of such credit has been taken..

          (d)  The total payment under Section 5.9(a)(i) and

5.9(a)(ii) shall not exceed (CONFIDENTIAL TREATMENT REQUESTED),

and the total milestone payments for any and all PRODUCT shall

not exceed  (CONFIDENTIAL TREATMENT REQUESTED).



     SECTION 6 - Warranties.

     6.1  Each of IXSYS and MEDIMMUNE warrants and represents to

the other that:

          (a) it has the corporate power and authority and the

legal right to enter into this Agreement and to perform its

obligations hereunder;

          (b) it has taken all necessary corporate action on its

part to authorize the execution and delivery of this Agreement

and the performance of its obligations hereunder; and

          (c) this Agreement has been duly executed and delivered

on its behalf, and constitutes a legal, valid, binding

obligation, enforceable against it in accordance with its terms.

    6.2   IXSYS represents and warrants to MEDIMMUNE that:

          (a)  it has not previously granted and, prior to

expiration or termination of this Agreement, will not grant any

rights in the EXISTING IXSYS PATENTS, ASSIGNED PATENTS,

MATERIALS, and ASSIGNED MATERIALS AND INFORMATION that conflict

with the rights and licenses granted to MEDIMMUNE herein;

          (b)  all persons performing research by or on behalf of

IXSYS under the PROGRAM will be obligated to assign to IXSYS (for

re-assignment to MEDIMMUNE hereunder), the ownership of ASSIGNED

MATERIALS AND INFORMATION, the ASSIGNED PATENTS and all other

intellectual property rights arising therefrom.

    6.3   Disclaimer.  EXCEPT AS OTHERWISE EXPRESSLY SET FORTH IN

SECTIONS 6.1 and 6.2, NEITHER PARTY MAKES ANY REPRESENTATION OR

EXTENDS ANY WARRANTIES OF ANY KIND EITHER EXPRESS OR IMPLIED,

INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR VALIDITY OF

ANY PATENT RIGHTS ISSUED OR PENDING.



    SECTION 7 - Indemnification.

    7.1  MEDIMMUNE agrees to indemnify and hold harmless IXSYS,

its directors, officers, employees and agents (collectively, the

"Indemnitees") from and against all losses, liabilities, damages

and expenses (including reasonable attorneys' fees and costs)

incurred in connection with any claims, demands, actions or other

proceedings by any third party arising from (a) the research,

development, manufacture, use or sale of ANTIBODIES or PRODUCTS

by MEDIMMUNE, its AFFILIATES or SUBLICENSEES, (b) the use of

PRODUCTS by any purchasers thereof, (c) the use by MEDIMMUNE, its

AFFILIATES or SUBLICENSEES of the EXISTING IXSYS PATENTS, the

ASSIGNED MATERIALS AND INFORMATION or the ASSIGNED PATENTS,

(d) any act or omission by MEDIMMUNE, its AFFILIATES OR

SUBLICENSEES the effect of which would cause IXSYS to be in

breach of its obligations under the license agreements described

in Section 3.1(b) (without regard to any applicable cure or

notice requirements thereof, or (e) patent infringement by IXSYS

during the PROGRAM based on a claim that an ANTIBODY or ligand or

assay provided by MEDIMMUNE to IXSYS infringes a patent of a

THIRD PARTY.

    7.2  If any such claims or actions are made, IXSYS shall be

defended at MEDIMMUNE's sole expense by counsel selected by

MEDIMMUNE and reasonably acceptable to IXSYS provided that IXSYS

may, at its own expense, also be represented by counsel of its

own choosing.

    7.3  MEDIMMUNE's indemnification under Section 7.1 shall not

apply to the extent any loss, liability, damage or expense is

attributable to the gross negligence or intentional misconduct of

the Indemnitees.

    7.4  MEDIMMUNE may not settle any such claim, demand, action

or other proceeding or otherwise consent to an adverse judgment

in any such action or other proceeding that diminishes the rights

or interests of the Indemnitees without the express written

consent of the Indemnitees.

    7.5  IXSYS shall notify MEDIMMUNE promptly of any claim,

demand, action or other proceeding under Section 7.1 and shall

reasonably cooperate with all reasonable requests of MEDIMMUNE

with respect thereto.



    SECTION 8 -  Assignment; Successors.

    8.1  This Agreement shall not be assigned or otherwise

transferred (in whole or in part, whether voluntarily, by

operation of law or otherwise) by either of the parties without

the prior written consent of the other party (which consent shall

not be unreasonably withheld); provided, however, that either

party may, without such consent, assign this Agreement and its

rights and obligations hereunder to an AFFILIATE or in connection

with the transfer or sale of all or substantially all of its

business, or in the event of its merger, consolidation, change in

control or similar transaction, provided that such assignment by

IXSYS does not cause the termination of the rights and licenses

granted to MEDIMMUNE under this Agreement.  Any permitted

assignee shall assume all obligations of its assignor under this

Agreement.  Any purported assignment or transfer in violation of

this Section 8.1 shall be void.

    8.2  Subject to the limitations on assignment herein, this

Agreement shall be binding upon and inure to the benefit of said

successors in interest and assigns of MEDIMMUNE and IXSYS.



    SECTION 9 - Term and Termination.

    9.1  Except as otherwise specifically provided herein and

unless sooner terminated pursuant to Section 9.2 or 9.3 of this

Agreement, this Agreement and the licenses and rights granted

thereunder shall remain in full force and effect until MEDIMMUNE

has no further royalty obligation hereunder at which time

MEDIMMUNE shall have a fully paid up, non-cancelable,

nonexclusive license to make, have made and use MATERIALS  to

research, develop, make, have made, use, import, export, sell,

offer to sell, or have sold PRODUCTS.

    9.2  MEDIMMUNE shall have the right to terminate this

Agreement upon ninety (90) days prior written notice to IXSYS.

    9.3  IXSYS shall have the right to terminate this Agreement

if and only if MEDIMMUNE breaches its obligations under Section

5 or 7.  If such a breach shall occur, IXSYS shall provide

MEDIMMUNE with written notice of such breach and if such breach

is not cured within thirty (30) days after such written notice,

IXSYS may terminate this Agreement by written notice to

MEDIMMUNE, provided such written notice is given within thirty

(30) days after the expiration of such initial thirty (30) day

period.

    9.4  Upon any termination of this Agreement, MEDIMMUNE, at

its option, shall be entitled to sell any completed inventory of

PRODUCT which remains on hand as of the date of the termination,

so long as MEDIMMUNE pays to IXSYS the royalties applicable to

said subsequent sales in accordance with the same terms and

conditions as set forth in this Agreement.

    9.5  In the event that this Agreement is terminated under

Section 9.2 or 9.3, any sublicense granted under this Agreement

shall remain in full force and effect as a direct license between

IXSYS and the SUBLICENSEE under the terms and conditions of the

sublicense agreement, subject to the SUBLICENSEE agreeing to be

bound to IXSYS under such terms and conditions within thirty (30)

days after IXSYS provides written notice to the SUBLICENSEE of

the termination of this Agreement.  At the request of MEDIMMUNE,

IXSYS will acknowledge to a SUBLICENSEE IXSYS' obligations to the

SUBLICENSEE under this paragraph.

    9.6  The provisions of Sections 2.8, 2.9, 3.4(c), 4, 7, 9.4,

9.5 and 9.6 shall survive any expiration or termination of this Agreement.

    9.7  Upon expiration or termination of this Agreement for any

reason, nothing herein shall be construed to release either party

from any obligation that matured prior to the effective date of

such expiration or termination.

    9.8  All rights and licensing granted under or pursuant to

this Agreement by IXSYS to MEDIMMUNE are, and shall irrevocably

be deemed to be, "intellectual property" as defined in Section

101(56) of the Bankruptcy Code.  In the event of the commencement

of a case by or against either party under any Chapter of the

Bankruptcy Code, this Agreement shall be deemed an executory

contract and all rights and obligations hereunder shall be

determined in accordance with Section 365(n) thereof.  Unless a

party rejects this Agreement and the other party decides not to

retain its rights hereunder, the other party shall be entitled to

a complete duplicate of (or complete access to, as appropriate)

all intellectual property and all embodiments of such

intellectual property held by the party and the party shall not

interfere with the rights of the other party, which are expressly

granted hereunder, to such intellectual property and all

embodiments of such intellectual property from another entity.

Further, this Agreement shall be deemed, upon presentation to

another entity, to be the same as an express instruction by the

party to such other entity to provide such intellectual property

and all embodiments of such intellectual property directly to the

other party.  Without limiting the foregoing provisions in this

paragraph, the other party shall be entitled to all post-

bankruptcy-petition improvements, updates, or developments of

intellectual property created hereunder.  If such intellectual

property is not fully developed as of the commencement of any

bankruptcy case, the other party shall have the right to complete

development of the property.

    SECTION 10 - Force Majeure.

    10.1 No failure or omission by the parties hereto in the

performance of any obligation of this Agreement (other than an

obligation for the payment of money) shall be a breach of this

Agreement, nor shall it create any liability, if the same shall

arise from any cause or causes beyond the reasonable control of

the affected party, including, but not limited to, the following,

which for purposes of this Agreement shall be regarded as beyond

the control of the party in question: acts of God; acts or

omissions of any government; any rules, regulations, or orders

issued by any governmental authority or by any officer,

department, agency or instrumentality thereof; fire; storm;

flood; earthquake; accident; war; rebellion; insurrection; riot;

invasion; strikes; and lockouts or the like; provided that the

party so affected shall use its commercially reasonable efforts

to avoid or remove such causes or nonperformance and shall

continue performance hereunder with the utmost dispatch whenever

such causes are removed.



    SECTION 11 - General Provisions.

    11.1 The relationship between IXSYS and MEDIMMUNE is that of

independent contractors.  IXSYS and MEDIMMUNE are not joint

venturers, partners, principal and agent, master and servant,

employer or employee, and have no relationship other than as

independent  contracting parties.  IXSYS shall have no power to

bind or obligate MEDIMMUNE in any manner.  Likewise, MEDIMMUNE

shall have no power to bind or obligate IXSYS in any manner.

    11.2 Any matter or disagreement under Section 5.2, which this

Agreement specifies is to be resolved by arbitration shall be

submitted to a mutually selected single arbitrator to so decide

any such matter or disagreement.  The arbitrator shall conduct

the arbitration in accordance with the Rules of the American

Arbitration Association, unless the parties agree otherwise.  If

the parties are unable to mutually select an arbitrator, the

arbitrator shall be selected in accordance with the procedures of

the American Arbitration Association.  The decision and award

rendered by the arbitrator shall be final and binding.  Judgment

upon the award may be entered in any court having jurisdiction

thereof.  Any arbitration pursuant to this section shall be held

in San Diego, California or such other place as may be mutually

agreed upon in writing by the parties.  The prevailing party in

any such arbitration shall be entitled to recover from the other

party all reasonable attorneys' fees and costs incurred by the

prevailing party in connection therewith.

    11.3 This Agreement sets forth the entire agreement and

understanding between the parties as to the subject matter

thereof and supersedes all prior agreements in this respect.

There shall be no amendments or modifications to this Agreement,

except by a written document which is signed by both parties.

    11.4 This Agreement shall be construed and enforced in

accordance with the laws of the State of California without

regard to the conflicts of law principles thereof.

    11.5 The headings in this Agreement have been inserted for

the convenience of reference only and are not intended to limit

or expand on the meaning of the language contained in the

particular article or section.

    11.6 Any delay in enforcing a party's rights under this

Agreement or any waiver as to a particular default or other

matter shall not constitute a waiver of a party's right to the

future enforcement of its rights under this Agreement, excepting

only as to an expressed written and signed waiver as to a

particular matter for a particular period of time.

    11.7 Any notices given pursuant to this Agreement shall be in

writing, delivered by any means, addressed to the other party at

its address indicated below, or to such other address as the

addressee shall have last furnished in writing to the addressor

and (except as otherwise provided in this Agreement) shall be

effective upon receipt by the addressee.


    IN WITNESS WHEREOF, the parties have executed this Agreement

as of the date set forth above.



     IXSYS, INC.                             MEDIMMUNE, INC.


By: /s/ Janine M. Taylor                By:  /s/ David M. Mott

Name: Janine M. Taylor                  Name: David M. Mott

Title: President & Chief Operating     Title: Vice Chairman &
Officer                                Chief Financial Officer





Exhibit 10.97
SELECTION AGREEMENT
This Selection Agreement (this "Agreement") is effective as of
February 24, 1999 ("the EFFECTIVE DATE") by and between Ixsys,
Inc., a Delaware corporation, having an address at 3520 Dunhill
Road, San Diego, CA 92121 ("IXSYS"), and MedImmune, Inc. a
Delaware Corporation, having offices at 35 West Watkins Mill
Road, Gaithersburg, MD 20878 ("MEDIMMUNE").
WHEREAS, MEDIMMUNE desires to have IXSYS perform certain research
and development with respect to certain antibodies yet to be
determined; and
WHEREAS, IXSYS desires to perform such research and development
on the terms and conditions of this Agreement.
NOW THEREFORE in consideration of the mutual promises and other
good and valuable consideration, the parties agree as follows:

SECTION 1 - Antibody Selection.
1.1  Within twenty four (24) months after the EFFECTIVE DATE,
MEDIMMUNE shall designate by written notice to IXSYS, two (2)
antibodies for which MEDIMMUNE desires to have IXSYS perform
separate research and development programs (each, a "PROGRAM") to
modify such antibodies.
1.2  The written notice described in Section 1.1 for each PROGRAM
shall specify the following:
(a)  the identity and sequence of the antibody;
(b)  the identity of the desired target ligand;
(c)  the desired assay by which to measure the specificity and
affinity of the antibody and modifications to such antibody
developed under the applicable PROGRAM;
(d)  the personnel resources (specified as the number of full
time equivalent personnel) to be expended by Ixsys under the
applicable PROGRAM, which shall not be less than (CONFIDENTIAL
TREATMENT REQUESTED) or more than (CONFIDENTIAL TREATMENT
REQUESTED) without the prior written consent of IXSYS; and
(e)  the term of the applicable PROGRAM, which shall not be less
than (CONFIDENTIAL TREATMENT REQUESTED) months or more than
(CONFIDENTIAL TREATMENT REQUESTED) months without the prior
written consent of IXSYS.
1.3  Within thirty (30) days after MEDIMMUNE delivers to IXSYS
the written notice described in Section 1.1 for a PROGRAM, the
parties shall duly execute and deliver a Research and Assignment
and License Agreement in the form attached hereto as Appendix A,
with the blanks on Exhibit 1 thereto completed as provided above
and only those modifications as the parties mutually agree in
writing.

SECTION 2 -  Assignment; Successors.
2.1  This Agreement shall not be assigned or otherwise
transferred (in whole or in part, whether voluntarily, by
operation of law or otherwise) by either of the parties without
the prior written consent of the other party (which consent shall
not be unreasonably withheld); provided, however, that either
party may, without such consent, assign this Agreement and its
rights and obligations hereunder in connection with the transfer
or sale of all or substantially all of its business, or in the
event of its merger, consolidation, change in control or similar
transaction.  Any permitted assignee shall assume all obligations
of its assignor under this Agreement.  Any purported assignment
or transfer in violation of this Section 2.1 shall be void.
2.2  Subject to the limitations on assignment herein, this
Agreement shall be binding upon and inure to the benefit of said
successors in interest and assigns of MEDIMMUNE and IXSYS.

SECTION 3 - General Provisions.
3.1  The relationship between IXSYS and MEDIMMUNE is that of
independent contractors.  IXSYS and MEDIMMUNE are not joint
venturers, partners, principal and agent, master and servant,
employer or employee, and have no relationship other than as
independent  contracting parties.  IXSYS shall have no power to
bind or obligate MEDIMMUNE in any manner.  Likewise, MEDIMMUNE
shall have no power to bind or obligate IXSYS in any manner.
3.2  This Agreement sets forth the entire agreement and
understanding between the parties as to the subject matter
thereof and supersedes all prior agreements in this respect.
There shall be no amendments or modifications to this Agreement,
except by a written document which is signed by both parties.
3.3  This Agreement shall be construed and enforced in accordance
with the laws of the State of California without regard to the
conflicts of law principles thereof.
3.4  The headings in this Agreement have been inserted for the
convenience of reference only and are not intended to limit or
expand on the meaning of the language contained in the particular
article or section.
3.5  Any delay in enforcing a party's rights under this Agreement
or any waiver as to a particular default or other matter shall
not constitute a waiver of a party's right to the future
enforcement of its rights under this Agreement, excepting only as
to an expressed written and signed waiver as to a particular
matter for a particular period of time.
3.6  Any notices given pursuant to this Agreement shall be in
writing, delivered by any means, addressed to the other party at
its address indicated below, or to such other address as the
addressee shall have last furnished in writing to the addressor
and (except as otherwise provided in this Agreement) shall be
effective upon receipt by the addressee.
     To MEDIMMUNE:  MedImmune, Inc.
                    35 West Watkins Mill Road
                    Gaithersburg, MD 20878

     Copy to:       Carella, Byrne, Bain, Gilfillan,
                      Cecchi, Stewart & Olstein
                    6 Becker Farm Road
                    Roseland, New Jersey 07068
                    Fax No. (973) 994-1744
                    Attn: Elliot M. Olstein, Esq.

     To IXSYS:      Ixsys, Inc.
                    3520 Dunhill Road
                    San Diego, CA  92121
                    Attention:  President

     Copy to:       Pillsbury Madison & Sutro LLP
                    235 Montgomery Street, 16th Floor
                    San Francisco,  California  94104
                    Attention:  Thomas E. Sparks, Jr.

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

IXSYS, INC.                                  MEDIMMUNE, INC.


By: /s/ Janine M. Taylor                By:  /s/ David M. Mott

Name: Janine M. Taylor                  Name: David M. Mott

Title: President & Chief Operating      Title: Vice Chairman &
Officer                                 Chief Financial Officer


EXHIBIT 10.96

LICENSE AGREEMENT

     This License Agreement (this "Agreement") is effective as of

February 24, 1999 ("the EFFECTIVE DATE") by and between Ixsys,

Inc., a Delaware corporation, having an address at 3520 Dunhill

Road, San Diego, CA 92121 ("IXSYS"), and MedImmune, Inc., a

Delaware Corporation, having offices at 35 West Watkins Mill

Road, Gaithersburg, MD 20878 ("MEDIMMUNE").

     WHEREAS, MEDIMMUNE desires to obtain from IXSYS an exclusive

worldwide right and license to certain antibodies; and

     WHEREAS, IXSYS desires to grant such rights on the terms and

conditions of this Agreement.

     NOW THEREFORE in consideration of the mutual promises and

other good and valuable consideration, the parties agree as

follows:



     SECTION 1 - Definitions.

     The terms used in this Agreement have the following meaning:

     1.1  "AFFILIATE," as applied to a person or entity, means

any other person or entity controlling or controlled by or under

common control with such person or entity.  The term "control"

means possession of the power to direct or cause the direction of

the management and policies whether through the ownership of

voting securities, by contract or otherwise.  The ownership of

voting securities of a person, organization or entity, however,

shall not, in and of itself, constitute "control" for purposes of

this definition, unless said ownership is of a majority of the

outstanding securities entitled to vote of such person,

organization or entity.  Affiliate shall also mean a limited

partnership in which a subsidiary of such person, organization or

entity is a general partner.

     1.2  "ANTIBODY(IES)" means (1) an antibody that specifically

binds to (CONFIDENTIAL TREATMENT REQUESTED) (including, but not

limited to, chimeric antibodies, humanized antibodies,

recombinant antibodies, grafted antibodies, single chain

antibodies, and the like) or an antibody fragment that

specifically binds to (CONFIDENTIAL TREATMENT REQUESTED) or (2) a

polynucleotide that encodes any of the foregoing.  For the

avoidance of doubt, ANTIBODY includes, but is not limited to,

derivatives of (CONFIDENTIAL TREATMENT REQUESTED) antibody,

fragments thereof and modifications, variants and derivatives

thereof, such as humanized, chimeric, grafted and CDR modified

versions thereof and fragments of such versions, including, but

not limited to, the humanized antibody referred to as VITAXIN.

Notwithstanding the foregoing, ANTIBODY shall exclude the

(CONFIDENTIAL TREATMENT REQUESTED) murine antibody produced by

the cell line (CONFIDENTIAL TREATMENT REQUESTED) deposited with

the American Type Culture Collection.

     1.3  "FIRST COMMERCIAL SALE" means, in each country, (a) the

first sale of a PRODUCT by MEDIMMUNE, its AFFILIATE or

SUBLICENSEE following approval of its marketing by the

appropriate governmental agency for the country in which the sale

is to be made, or (b) when governmental approval is not required,

the first commercial sale of a PRODUCT by MEDIMMUNE, its

AFFILIATE or SUBLICENSEE in that country.

     1.4  "IXSYS KNOW-HOW" means all information and data

(including, but not limited to, formulae, procedures, protocols,

techniques and results of experimentation and testing) that are

necessary or useful for MEDIMMUNE to make, use or sell an

ANTIBODY (including an ANTIBODY that constitutes a component or

ingredient of a product), in each case only to the extent owned

by or licensed to IXSYS or its AFFILIATES (with the right to

grant sublicenses) or as to which IXSYS or its AFFILIATES

otherwise has licensable rights as of the EFFECTIVE DATE or

(subject to Section 1.15) thereafter during the term of this

Agreement.

     1.5  "IXSYS LICENSE AGREEMENTS" means the agreements listed

in Appendix A.

     1.6  "IXSYS PATENT(S)" means any patent or patent

application (or equivalents thereof, such as extensions or other

rights that give the right to exclude others such as

Supplementary Protection Certificates) anywhere in the world, to

the extent the claims of which would be infringed by the

manufacture, use or sale of a product comprising an ANTIBODY  and

only to the extent that it is either owned by or licensed to

IXSYS or its AFFILIATES (with the right to grant sublicenses) or

as to which IXSYS or its AFFILIATES otherwise has licensable

rights, in each case, as of the EFFECTIVE DATE or (subject to

Section 1.15) thereafter during the term of this Agreement

(including, but not limited to, those of Appendix B and those

licensed under the IXSYS LICENSE AGREEMENTS).

     1.7  "LICENSED TERRITORY" means all countries of the world.

     1.8  "MATERIALS" means ANTIBODIES, the cell lines for

producing such ANTIBODIES, the polynucleotides encoding such

ANTIBODIES, and the assays, vectors and constructs for producing

such ANTIBODIES, in each case only to the extent owned by or

licensed to IXSYS or its AFFILIATES (with the right to grant

sublicenses) or as to which IXSYS or its AFFILIATES otherwise has

transferable rights, and in the possession and control of IXSYS

or its AFFILIATES, as of the EFFECTIVE DATE or (subject to

Section 1.15) thereafter during the term of this Agreement.  For

the avoidance of doubt, MATERIALS includes the existing cell line

and associated vectors for producing the humanized version of

(CONFIDENTIAL TREATMENT REQUESTED) known as VITAXIN and VITAXIN

variants in the possession and control of IXSYS as of the

EFFECTIVE DATE.

     1.9  "NET SALES" means, with respect to any PRODUCT, the

invoiced sales price of such PRODUCT sold by MEDIMMUNE, its

AFFILIATES and SUBLICENSEES to independent customers who are not

AFFILIATES, less (a) actual and customary credits, allowances,

discounts and rebates to, and chargebacks from the account of,

such independent customers for spoiled, damaged, out-dated,

rejected or returned PRODUCT; (b) actual freight and insurance

costs incurred in transporting such PRODUCT to such customers;

(c) actual and customary cash, quantity and trade discounts;

(d) sales, use, value-added and taxes or governmental charges

(excluding what is commonly known as income taxes) incurred in

connection with the exportation or importation of such PRODUCT;

(e) the cost to MEDIMMUNE of the devices for dispensing or

administering such PRODUCT as well as diluents or similar

materials which accompany such PRODUCT as it is sold, and (f) a

reasonable allowance for bad debt, all in accordance with

Generally Accepted Accounting Principles.  For purposes of

determining NET SALES, a sale shall have occurred when an invoice

therefor shall be generated or the PRODUCT shipped for delivery.

Sales of PRODUCTS by MEDIMMUNE, an AFFILIATE or SUBLICENSEE to

any AFFILIATE or SUBLICENSEE which is a reseller thereof shall be

excluded, and only the subsequent sale of such PRODUCTS by

AFFILIATES or SUBLICENSEES to unrelated parties shall be deemed

NET SALES hereunder.

     1.10 "PRODUCT" means a product comprising (i) an ANTIBODY,

the manufacture, use or sale of which infringes a VALID PATENT

CLAIM as to which MEDIMMUNE retains a license under this

Agreement, (ii) an ANTIBODY  provided and licensed to MEDIMMUNE

by IXSYS under this Agreement, or (iii) an ANTIBODY which is

derived from an ANTIBODY provided and licensed to MEDIMMUNE under

this Agreement.

     1.11 "ROYALTY PERIOD" means, with respect to each PRODUCT in

each country in the LICENSED TERRITORY, (a) if the manufacture,

use, offer for sale, sale or import of such PRODUCT in such

country at the time of the FIRST COMMERCIAL SALE infringes a

VALID PATENT CLAIM (if in an issued patent) but for the license

granted by this Agreement, the royalty period continues for as

long as such VALID PATENT CLAIM remains in effect and (if in an

issued patent) is infringed thereby but for the license granted

by this Agreement, or (b) otherwise, (CONFIDENTIAL TREATMENT

REQUESTED) years from the date of the FIRST COMMERCIAL SALE of

such PRODUCT in such country.

     1.12 "SUBLICENSEE" means any AFFILIATE or THIRD PARTY that

is granted a sublicense by MEDIMMUNE under the licenses and

sublicenses granted by this Agreement.

     1.13 "THIRD PARTY(IES)" means a person or entity other than

IXSYS or MEDIMMUNE or any of their AFFILIATES.

     1.14 The term "VALID PATENT CLAIM" shall mean either (a) a

claim of an issued and unexpired patent included within the IXSYS

PATENTS, which has not been held permanently revoked,

unenforceable or invalid by a decision of a court or other gover

nmental agency of competent jurisdiction, unappealable or

unappealed within the time allowed for appeal, and which has not

been admitted to be invalid or unenforceable through reissue or

disclaimer or otherwise or (b) a claim of a pending patent

application included within the IXSYS PATENTS, which claim was

filed in good faith and has not been abandoned or finally

disallowed without the possibility of appeal or refiling of such

application, the subject matter of which has not been pending for

more than (CONFIDENTIAL TREATMENT REQUESTED) years, including the

pendency of any prior application.

     1.15 In the event of the good faith transfer or sale of all

or substantially all of IXSYS'  assets (including this Agreement)

to a THIRD PARTY, or in the event of the good faith merger,

consolidation, or similar transaction with a THIRD PARTY, in

which IXSYS is not the surviving entity, (a) the subject matter

of the ANTIBODIES, IXSYS KNOW-HOW, IXSYS PATENTS and MATERIALS

shall not include any antibody or fragment, data or information,

patent or patent application or material of the surviving entity

or the purchaser of IXSYS' assets existing prior to the effective

date of such transaction or acquired or arising on or after the

effective date of such transaction, if the surviving entity or

the purchaser of IXSYS' assets, prior to such effective date. was

working on the research, development, manufacture or

commercialization of an ANTIBODY, and (b) the subject matter of

IXSYS KNOW-HOW and IXSYS PATENTS shall exclude any data or

information, or patent or patent application, regarding antibody

production generally, of the surviving entity or the purchaser of

IXSYS' assets existing prior to the effective date of such

transaction or acquired or arising on or after the effective date

of such transaction, if the surviving entity or the purchaser of

IXSYS' assets, prior to such effective date, was in the business

of commercial production of antibodies.

     1.16 The use herein of the plural shall include the

singular, and the use of the masculine shall include the

feminine.

     1.17 All dollars are United States Dollars.



     SECTION 2 - Transfer of IXSYS KNOW-HOW and MATERIALS.

     2.1  Within thirty (30) days of the EFFECTIVE DATE, IXSYS,

at the cost and expense of IXSYS, shall transfer to MEDIMMUNE the

IXSYS KNOW-HOW and MATERIALS existing as of the EFFECTIVE DATE.

Promptly after the end of each calendar quarter thereafter during

the term of this Agreement, IXSYS, at the cost and expense of

IXSYS, shall transfer to MEDIMMUNE the IXSYS KNOW-HOW and

MATERIALS not previously delivered to MEDIMMUNE.

     2.2  For a period of six (6) months after the EFFECTIVE

DATE, IXSYS, at the cost and expense of IXSYS, shall provide

MEDIMMUNE with such technical assistance as reasonably requested

by MEDIMMUNE with respect to the use of the IXSYS PATENTS, IXSYS

KNOW-HOW and MATERIALS hereunder.

     2.3  (a)  IXSYS, at its cost and expense, shall deliver to

MEDIMMUNE (i) a (CONFIDENTIAL TREATMENT REQUESTED) liter batch of

the ANTIBODY that is a humanized form of (CONFIDENTIAL TREATMENT

REQUESTED) antibody which humanized antibody is known as VITAXIN

that is currently being produced by (CONFIDENTIAL TREATMENT

REQUESTED) for IXSYS under Good Manufacturing Practices with

delivery expected in (CONFIDENTIAL TREATMENT REQUESTED), and (ii)

the associated documentation delivered by (CONFIDENTIAL TREATMENT

REQUESTED) to IXSYS in connection therewith that is required for

use in human clinical testing and commercial development and

manufacturing of such produced VITAXIN.

          (b)  In the event that IXSYS does not deliver VITAXIN

in accordance with Section 2.3(a), then MEDIMMUNE shall have the

right to deduct from any and all payments due and payable to

IXSYS under this Agreement an amount equal to (CONFIDENTIAL

TREATMENT REQUESTED).

     2.4  IXSYS shall have the right to publish IXSYS' KNOW-HOW;

provided, however, that IXSYS shall provide MEDIMMUNE the

opportunity to review any proposed manuscripts or any other

proposed disclosure describing such work sixty (60) days prior to

their submission for publication or other proposed disclosure.

MEDIMMUNE and IXSYS shall discuss whether or not such publication

or disclosure should occur and it is expressly understood that

MEDIMMUNE shall have the sole right to make a final determination

as to whether or not such publication or disclosure shall occur

provided that such determination is not unreasonable.  It shall

not be unreasonable to deny publication on the basis that the

information proposed to be published is not generally available

to the public and may aid a competitor in developing a

competitive product.



     SECTION 3 - License Grants.

     3.1  (a)  IXSYS hereby grants to MEDIMMUNE and MEDIMMUNE

hereby accepts from IXSYS a sole and exclusive right and license

(or sublicense, as applicable) for the LICENSED TERRITORY (i)

under and to IXSYS PATENTS and IXSYS KNOW-HOW to research,

develop, make, have made, use, import, export and sell, offer to

sell or have sold PRODUCTS and (ii) to make, have made and use

the MATERIALS for all of the purposes of 3.1(a)(i).

Notwithstanding anything to the contrary in this Agreement, the

rights and licenses granted to MEDIMMUNE under this Agreement

exclude any right or license (express or implied) under any IXSYS

patent rights or know-how regarding the generation, discovery or

modification of antibody libraries, antibodies or fragments

thereof, generally.

          (b)  To the extent that the rights and licenses granted

to MEDIMMUNE under Section 3.1(a) is a sublicense under an IXSYS

LICENSE AGREEMENT, the rights, and licenses granted to MEDIMMUNE

under such sublicense are limited to the extent that IXSYS  is

licensed under the IXSYS LICENSE AGREEMENT and such sublicense is

subject to the terms, conditions and restrictions of the IXSYS

LICENSE AGREEMENT that are applicable to a sublicense thereunder.

MEDIMMUNE shall not take or omit to take any action the effect of

which would cause IXSYS to be in breach of IXSYS' obligations

under the IXSYS LICENSE AGREEMENTS (without regard to any

applicable cure or notice requirements thereof).

     3.2  MEDIMMUNE shall have the right to grant sublicenses

under the licenses and sublicenses granted under Section 3.1 to

its AFFILIATES and THIRD PARTIES (with the right to grant further

sublicenses, subject to any terms, conditions and restrictions on

further sublicensing under IXSYS LICENSE AGREEMENTS).  MEDIMMUNE

shall deliver to IXSYS a copy of each such sublicense promptly

after execution of the same.  Each such sublicense shall be

subject to the terms and conditions of this Agreement.

     3.3  The licenses granted hereunder include the right of

MEDIMMUNE, its AFFILIATES and SUBLICENSEES to grant to the

purchaser thereof the right to use and/or resell a purchased

PRODUCT for which a royalty has been paid hereunder on NET SALES

of such PRODUCT (determined in accordance with Section 1.9),

without payment of any further royalty to IXSYS.

     3.4  The provisions of Section 11.3(b) set forth MEDIMMUNE's

only diligence obligations to IXSYS with respect to research,

development and commercialization of PRODUCT, and the sole and

exclusive remedy for failure to meet such obligations.

     3.5  IXSYS acknowledges that MEDIMMUNE is in the business of

developing, manufacturing and selling of medical processes and

products and that nothing in this Agreement shall be construed as

restricting such business or imposing on MEDIMMUNE the duty to

market, and/or sell and exploit PRODUCT for which royalties are

due hereunder to the exclusion of or in preference to any other

product or process.

     3.6  Subject to Section 11.3(b), MEDIMMUNE shall have sole

discretion for making all decisions relating to the

commercialization and marketing of PRODUCT.

     3.7  Except as otherwise expressly provided in this

Agreement, or the parties otherwise expressly agree in writing,

neither party shall obtain any right or license in any patent

rights, know-how, materials or technology of the other party (by

implication, estoppel or otherwise) for any purpose.

     3.8  IXSYS shall in good faith request that its licensor

under each IXSYS LICENSE AGREEMENT provide the consent of

Appendix C.



     SECTION 4 - Confidentiality.

     4.1  During the term of this Agreement, IXSYS agrees not to

provide or disclose to a THIRD PARTY any MATERIALS without the

written permission of MEDIMMUNE.

     4.2  After the date of this Agreement, subject to Section

2.4, IXSYS agrees not to disclose to a THIRD PARTY any IXSYS KNOW-

HOW without the written permission of MEDIMMUNE.

     4.3  During the term of this Agreement, it is contemplated

that each party will disclose to the other party confidential

information which is owned or controlled by the party providing

such information or which that party is obligated to maintain in

confidence and which is designated by the party providing such

information as confidential ("Confidential Information").  Each

party shall have the right to refuse to accept the other party's

Confidential Information.  Each party agrees to retain the other

party's Confidential Information in confidence, to limit

disclosure of any such Confidential Information to its officers,

directors, employees, consultants, sublicensees and permitted

assigns on a need to know basis.  Each party agrees to use the

other party's Confidential Information only as permitted by this

Agreement, and not to disclose any such Confidential Information

to any other person or entity without the prior written consent

of the party providing such Confidential Information.  For the

avoidance of doubt, IXSYS KNOW-HOW and MATERIALS will be

Confidential Information of IXSYS.

     4.4  The obligations of confidentiality and non-use of

Sections  4.2 and 4.3 will not apply to:

                    (a)  Confidential Information generally known

               to the public prior to its disclosure hereunder;

               or

                    (b)  Confidential Information that

               subsequently becomes known to the public by some

               means other than a breach of this Agreement;

                    (c)  Confidential Information that is

               subsequently disclosed to the receiving party by a

               third party having a lawful right to make such

               disclosure; or

                    (d)  is approved for release by the parties.

     4.5  Neither party shall disclose any terms or conditions of

this Agreement to any third party without the prior consent of

the other party; provided, however, that a party may disclose the

terms or conditions of this Agreement, (a) on a need-to-know

basis to its legal and financial advisors to the extent such

disclosure is reasonably necessary in connection with such

party's activities expressly permitted by this Agreement and

ordinary and customary business operations, and (b) to a third

party in connection with (i) an equity investment in such party,

(ii) a merger, consolidation, change in control or similar

transaction by such party, or (iii) the transfer or sale of all

or substantially all of the assets of such party.

Notwithstanding the foregoing, prior to execution of this

Agreement the parties have agreed upon the substance of

information that may be used to describe the terms and conditions

of this transaction, and each party may disclose such

information, as modified by mutual written agreement of the

parties, without the consent of the other party.

     4.6  The obligations of this Section 4 shall not apply to

the extent that a party is required to disclose information by

applicable law, regulation or bona fide legal process, provided

that the party required to make the disclosure takes reasonable

steps to restrict and maintain confidentiality of such disclosure

and provides reasonable prior notice to the other party.

     4.7  Notwithstanding the foregoing, MEDIMMUNE shall have the

right to disclose Confidential Information of IXSYS to a THIRD

PARTY with whom MEDIMMUNE has or proposes to enter into a

business relationship and who undertakes an obligation of

confidentiality and non-use with respect to such information, at

least as restrictive as the obligation under this Section 4.

     4.8  The parties' obligations under this Section 4 shall

terminate five (5) years after the expiration or termination of

this Agreement.



     SECTION 5 - Patents.

     5.1  IXSYS (or its licensor) shall file, prosecute and

maintain IXSYS PATENTS through patent counsel selected by IXSYS

(or its licensor).  IXSYS shall consult with and keep MEDIMMUNE

advised with respect thereto.  MEDIMMUNE shall pay all reasonable

out-of-pocket costs (including reasonable attorneys' fees and

costs) incurred in connection therewith by IXSYS after the

EFFECTIVE DATE.

     5.2  With respect to any IXSYS PATENTS, each patent

application, office action, response to office action, request

for terminal disclaimer, and request for reissue or reexamination

or extension of any patent issuing from such application shall be

provided to MEDIMMUNE sufficiently prior to the filing of such

application, response or request to allow for review and comment

by MEDIMMUNE.  IXSYS agrees to consider such comments and follow

reasonable comments unless IXSYS believes that such comments are

adverse to the interests of IXSYS.

     5.3  IXSYS shall not allow any IXSYS PATENTS licensed to

MEDIMMUNE to lapse or be surrendered, or abandoned without the

written consent of MEDIMMUNE (other than those that are abandoned

in the ordinary course of prosecution in connection with the

filing of a continuation or continuation in part application

therefor).

     5.4  The obligations of IXSYS under Sections 5.1 - 5.3 with

respect to IXSYS PATENTS that are sublicensed to MEDIMMUNE shall

only be to the extent that it is permitted under the IXSYS

LICENSE AGREEMENTS.



     SECTION 6 - Royalties.

     6.1  Subject to Sections 6.1, 6.2, 6.3, 6.4 and 6.12(e),

during the ROYALTY PERIOD, MEDIMMUNE shall pay royalties to IXSYS

for PRODUCTS as follows:

          (a)  (CONFIDENTIAL TREATMENT REQUESTED) of that portion

of NET SALES of PRODUCTS in a calendar year up to (CONFIDENTIAL

TREATMENT REQUESTED);

          (b)  (CONFIDENTIAL TREATMENT REQUESTED) of that portion

of NET SALES of PRODUCTS in a calendar year in excess of

(CONFIDENTIAL TREATMENT REQUESTED) up to (CONFIDENTIAL TREATMENT

REQUESTED);

          (c)  (CONFIDENTIAL TREATMENT REQUESTED) of that portion

of NET SALES of PRODUCTS in a calendar year that exceeds

(CONFIDENTIAL TREATMENT REQUESTED).

          (d)  For a PRODUCT for which the ROYALTY PERIOD is

(CONFIDENTIAL TREATMENT REQUESTED) years under Section 1.11 , the

royalty rate under Section 6.1(a), (b) and (c), after taking into

account any applicable increase or decrease, shall be reduced in

each case by (CONFIDENTIAL TREATMENT REQUESTED) in any country in

which one or more THIRD PARTIES is selling  ANTIBODY (other than

ANTIBODY intended for research use only), and the aggregate

dollar volume of the sales of  ANTIBODY by such THIRD PARTIES

equals or exceeds (CONFIDENTIAL TREATMENT REQUESTED) of the

aggregate market  for  ANTIBODY and all other products labeled

for the same use in such country.  Any dispute regarding the

appropriate market for purposes of such determination shall be

submitted to binding arbitration under Section 13.2.

          (e)  The cumulative NET SALES for a calendar year shall

     be calculated based on worldwide NET SALES.

     6.2  In the event that a PRODUCT is sold in combination with

a therapeutically active component that is not a PRODUCT (such

combination being a "Combination Product"), then NET SALES of

such Combination Product upon which a royalty is paid shall be

subject to the following adjustment.  If the PRODUCT and the

other therapeutically active component are sold separately in a

country, then NET SALES of such Combination Product in such

country upon which a royalty is paid shall be multiplied by the

fraction A/A+B, where A equals the average sales price of such

PRODUCT sold separately in such country, and B equals the average

sales price of the other therapeutically active component sold

separately in such country.  Otherwise, the parties shall enter

into good faith negotiations and attempt to reach mutual

agreement to determine an appropriate adjustment to the NET SALES

of such Combination Product in a country to reflect the relative

contributions of the PRODUCT and the other therapeutically active

component to the value of the Combination Product in such

country.  If such mutual agreement is not reached within ninety

(90) days after commencement of such negotiations, then the

determination shall be submitted to binding arbitration under

Section 13.2.

     6.3  With respect to any PRODUCT for which the cumulative

royalty rate owed by MEDIMMUNE to a THIRD PARTY(IES) based on

sales in any country, including the royalty rates under the IXSYS

LICENSE AGREEMENTS, exceeds (CONFIDENTIAL TREATMENT REQUESTED),

the royalty rate under Sections 6.1(b) and (c) for such PRODUCT

in such country shall be reduced by (CONFIDENTIAL TREATMENT

REQUESTED) of such excess, but in no event shall any of such

royalty rates for such PRODUCT in such country be reduced to less

than (CONFIDENTIAL TREATMENT REQUESTED).

     6.4  With respect to any PRODUCT for which the cumulative

royalty rate owed by MEDIMMUNE to a THIRD PARTY(IES) based on

sales in any country, including the royalty rates under the IXSYS

LICENSE AGREEMENTS, is less than (CONFIDENTIAL TREATMENT

REQUESTED), the royalty rate under Sections 6.1(a), (b) and (c)

for such PRODUCT in such country shall be increased by

(CONFIDENTIAL TREATMENT REQUESTED) of such deficiency but in no

event shall such royalty rates for such PRODUCT in such country

be increased by more than (CONFIDENTIAL TREATMENT REQUESTED).

     6.5  MEDIMMUNE additionally shall pay to IXSYS all royalties

and other amounts owed by IXSYS under the IXSYS LICENSE

AGREEMENTS that are based on development milestones, sales or

manufacturing of PRODUCT by MEDIMMUNE, its AFFILIATES and

SUBLICENSEES.  IXSYS shall timely remit such amounts to the

applicable THIRD PARTY.  All other payments due under IXSYS

LICENSE AGREEMENTS shall be paid by IXSYS.

     6.6  MEDIMMUNE shall keep, and shall cause each of its

AFFILIATES and SUBLICENSEES to keep, full and accurate books of

account containing all particulars that may be necessary for the

purpose of calculating all royalties payable to IXSYS.  Such

books of account, together with all necessary supporting data,

shall be kept at their principal place of business, and for the

three (3) years next following the end of the calendar year to

which each pertains, shall be open for inspection by an

independent certified accountant selected by IXSYS and reasonably

acceptable to MEDIMMUNE upon reasonable notice during normal

business hours at IXSYS' expense for the sole purpose of

verifying royalty statements or compliance with this Agreement,

but in no event more than once in each calendar year.  All

information and data offered shall be used only for the purpose

of verifying royalties and shall be treated as MEDIMMUNE

Confidential Information subject to the obligations of this

Agreement.

     6.7  With each quarterly payment, MEDIMMUNE shall deliver to

IXSYS a full and accurate accounting of the calculation of the

royalties owing hereunder to include at least the following

information:

          (a)  Quantity of each PRODUCT subject to royalty sold

(by country) by MEDIMMUNE, its AFFILIATES and SUBLICENSEES;

          (b)  NET SALES for each PRODUCT (by country);

          (c)  The calculation of the gross royalties (before

deductions) for each PRODUCT (by country) and any deductions,

offsets and credits therefrom; and

          (d)  Total royalties payable to IXSYS for each PRODUCT

(by country) and the total royalties payable to IXSYS for all

PRODUCTS (for all countries).

     6.8  In each year the amount of royalty due shall be

calculated quarterly as of March 31, June 30, September 30 and

December 31 (each being the last day of an "ACCOUNTING PERIOD")

and shall be paid quarterly within the sixty (60) days next

following such date.  Every such payment shall be supported by

the accounting prescribed in Section 6.7 and shall be made in

United States currency.  Whenever for the purpose of calculating

royalties conversion from any foreign currency shall be required,

such conversion shall be at the average of the rate of exchange

(local currency per US$1) published in the Western Edition of The

Wall Street Journal under the caption "Currency Trading" for the

last business day of each month during the applicable ACCOUNTING

PERIOD.

     6.9  If the transfer of or the conversion into United States

Dollar equivalent of any remittance due hereunder is not lawful

or possible in any country, such remittance shall be made by the

deposit thereof in the currency of the country to the credit and

account of IXSYS or its nominee in any commercial bank or trust

company located in that country, prompt notice of which shall be

given to IXSYS.  IXSYS shall be advised in writing in advance by

MEDIMMUNE and provide to MEDIMMUNE a nominee, if so desired.

     6.10 Any tax required to be withheld by MEDIMMUNE under the

laws of any foreign country for the account of IXSYS shall be

promptly paid by MEDIMMUNE for and on behalf of IXSYS to the

appropriate governmental authority, and MEDIMMUNE shall furnish

IXSYS with proof of payment of such tax.  Any such tax actually

paid on IXSYS' behalf shall be deducted from royalty payments due

IXSYS.

     6.11 Only one royalty shall be due and payable under each of

the applicable subsections under this Section 6 for the

manufacture, use and sale of a PRODUCT irrespective of the number

of patents or claims thereof which cover the manufacture, use and

sale of such PRODUCT.

     6.12 (a)  MEDIMMUNE shall pay to IXSYS the following

milestone payments upon the occurrence of the following events

with respect to a PRODUCT and all or a portion of such milestone

payment may be made by the purchase of common stock of IXSYS in

accordance with Section 6.12(d):

A.   PRODUCT for (CONFIDENTIAL TREATMENT REQUESTED) indication

     Event                                             Payment

      (1) Initiate Phase II Clinical Trial
CTR

      (2) Initiate a Phase III Clinical Trial
CTR

      (3) Submission of a Biologics License Application
          in the United States or an equivalent for Europe
          (or any country in Europe) or Japan
CTR

      (4) Approval of a Biologics License Application in the
          United States                                CTR

      (5) Approval to sell in Europe (or any country in
          Europe) including pricing approvals
CTR

      (6) Approval to sell in Japan including pricing approvals
CTR

B.   PRODUCT for (CONFIDENTIAL TREATMENT REQUESTED) indication.

     Event                                             Payment

      (1) Initiate Phase II Clinical Trial
CTR

      (2) Initiate a Phase III Clinical Trial
CTR

      (3) Submission of a Biologics License Application
          in the United States or an equivalent for Europe
          (or any country in Europe) or Japan
CTR

      (4) Approval of a Biologics License Application in the
          United States                                CTR

      (5) Approval to sell in Europe (or any country in
          Europe) including pricing approvals
CTR

      (6) Approval to sell in Japan including pricing approvals
CTR

C.   Sales Milestones

     Event                                             Payment

      (1) Cumulative NET SALES of PRODUCTS
          in a calendar year exceeds (CONFIDENTIAL
          TREATMENT REQUESTED)                    CTR

      (2) Cumulative NET SALES of PRODUCTS
          in a calendar year exceeds (CONFIDENTIAL
          TREATMENT REQUESTED)                    CTR

     (b)  Each of the (CONFIDENTIAL TREATMENT REQUESTED)

milestones shall be paid (CONFIDENTIAL TREATMENT REQUESTED)

whereby the total milestone payment for all PRODUCTS is:  (i)

(CONFIDENTIAL TREATMENT REQUESTED) under Section 6.12(a) A ; (ii)

(CONFIDENTIAL TREATMENT REQUESTED) under Section 6.12(a) B ; and

(iii) (CONFIDENTIAL TREATMENT REQUESTED) under Section 6.12(a) C.

     (c)  The milestone payments under Section 6.12(a) are due

and payable sixty (60) days after the applicable milestone

occurs.

     (d)  At its option, MEDIMMUNE may make the milestone payment

due under Section 6.12(a) in the form of a purchase of common

stock of IXSYS on the date the applicable milestone payment is

due in a dollar amount equal to the applicable milestone payment

that is due at a price per share equal to (CONFIDENTIAL TREATMENT

REQUESTED)  per share if the milestone occurs prior to the first

anniversary of the EFFECTIVE DATE, and thereafter at a price per

share equal to the greater of (i) (CONFIDENTIAL TREATMENT

REQUESTED) per share (which (CONFIDENTIAL TREATMENT REQUESTED)

per share price shall be adjusted for stock splits that occur

after the EFFECTIVE DATE), or (ii)(A) (CONFIDENTIAL TREATMENT

REQUESTED) prior to the date the applicable milestone is

achieved,  or (B) if such shares are not traded on a stock

exchange , (CONFIDENTIAL TREATMENT REQUESTED) of the most recent

share price in a good faith, arm's length sale of equity

securities of IXSYS to any THIRD PARTY (independent of an overall

transaction that includes a transfer of technology or marketing

rights and independent of a sale to employees of IXSYS pursuant

to a stock plan) or to MEDIMMUNE.  Any such purchase of IXSYS

common stock shall be made pursuant to a stock purchase agreement

substantially in the form of the stock purchase agreement

described in Section 6.13.  In no event shall MEDIMMUNE have the

right to purchase a number of shares by which MEDIMMUNE and its

AFFILIATES, in the aggregate, will own more than (CONFIDENTIAL

TREATMENT REQUESTED) of the total outstanding shares of IXSYS, at

the time, on a fully diluted basis.  MEDIMMUNE will not have the

right to make the milestone payment in the form of a purchase of

common stock of IXSYS under this Section 6.12(d) if (i) at least

(CONFIDENTIAL TREATMENT REQUESTED) of the total outstanding

shares of IXSYS, on a fully diluted basis, is owned by a single

person or entity, (ii) there has been a good faith merger,

consolidation or similar transaction with a THIRD PARTY in which

IXSYS is not the surviving entity, or (iii) there has been the

good faith sale of all or substantially all of IXSYS' assets

(including this Agreement) to a THIRD PARTY.

          (e)  (CONFIDENTIAL TREATMENT REQUESTED) of all

milestone payments paid in cash under Section 6.12(a) and

(CONFIDENTIAL TREATMENT REQUESTED) of all milestone payments made

by the purchase of common stock of IXSYS under Section 6.12(d),

are creditable against up to (CONFIDENTIAL TREATMENT REQUESTED)

of each royalty payment that is to be made pursuant to Section

6.1 until the full amount of such credit has been taken.



     6.13 At the option of IXSYS, this Agreement shall terminate

and be void ab initio if, by the end of the second business day

after the EFFECTIVE DATE, MEDIMMUNE shall not have purchased

common stock of IXSYS in a cumulative dollar amount equal to

(CONFIDENTIAL TREATMENT REQUESTED) at a price per share of

(CONFIDENTIAL TREATMENT REQUESTED) pursuant to a stock purchase

agreement dated as of the EFFECTIVE DATE between the parties.



     SECTION 7 - Infringement.

     7.1  (a)  If any of the IXSYS PATENTS under which MEDIMMUNE

is licensed hereunder is infringed by the sale by a THIRD PARTY

of a PRODUCT, subject to the provisions of the IXSYS LICENSE

AGREEMENTS, MEDIMMUNE shall have the right and option but not the

obligation to bring an action for such infringement, at its sole

expense, against such THIRD PARTY in the name of IXSYS and/or in

the name of MEDIMMUNE and/or in the name of a licensor of IXSYS,

as the case may be, and to join IXSYS or its licensor as a party

plaintiff if required.  MEDIMMUNE shall promptly notify IXSYS of

any such infringement and shall keep IXSYS informed as to the

prosecution of any action for such infringement.  No settlement,

consent judgment or other voluntary final disposition of the suit

which adversely affects IXSYS PATENTS may be entered into without

the consent of IXSYS, which consent shall not unreasonably be

withheld.

          (b)  In the event that MEDIMMUNE shall undertake the

enforcement under Section 7.1(a) of the IXSYS PATENTS by

litigation, subject to the provisions of the IXSYS LICENSE

AGREEMENTS, any recovery of damages by MEDIMMUNE for any such

suit shall be applied first pro rata in satisfaction of any

unreimbursed out of pocket expenses and legal fees of MEDIMMUNE

regarding such suit.  The balance remaining from any such

recovery shall be divided between MEDIMMUNE and IXSYS, as follows

(i) for that portion, if any, based on lost profits, IXSYS shall

recover the royalty IXSYS would have received under this

Agreement if such sales had been made by MEDIMMUNE; and (ii) for

any other recovery, IXSYS shall receive (CONFIDENTIAL TREATMENT

REQUESTED) of the remaining amount.

     7.2  In the event that MEDIMMUNE elects not to pursue an

action for infringement, upon written notice to IXSYS by

MEDIMMUNE that an unlicensed THIRD PARTY is an infringer of a

VALID PATENT CLAIM of IXSYS PATENTS licensed to MEDIMMUNE, IXSYS

shall have the right and option, but not the obligation at its

cost and expense to initiate infringement litigation and to

retain any recovered damages.

     7.3  In any infringement suit either party may institute to

enforce the IXSYS PATENTS pursuant to this Agreement, the other

party hereto shall, at the request of the party initiating such

suit, reasonably cooperate and, to the extent reasonably

possible, have its employees testify when requested and make

available relevant records, papers, information, samples,

specimens, and the like.  All reasonable out-of-pocket costs

incurred in connection with rendering cooperation requested

hereunder shall be paid by the party requesting cooperation.



     SECTION 8 - Warranties.

     8.1  Each of IXSYS and MEDIMMUNE warrants and represents to

the other that:

          (a) it has the corporate power and authority and the

legal right to enter into this Agreement and to perform its

obligations hereunder;

          (b) it has taken all necessary corporate action on its

part to authorize the execution and delivery of this Agreement

and the performance of its obligations hereunder; and

          (c) this Agreement has been duly executed and delivered

on its behalf, and constitutes a legal, valid, binding

obligation, enforceable against it in accordance with its terms.

    8.2   IXSYS represents and warrants to MEDIMMUNE that:

          (a)  it has not previously granted and, prior to

expiration or termination of this Agreement, will not grant any

rights in the IXSYS PATENTS or IXSYS KNOW-HOW that conflict with

the rights and licenses granted to MEDIMMUNE herein;

          (b)  IXSYS has provided to MEDIMMUNE a true, complete

and correct copy of the IXSYS LICENSE AGREEMENTS (including any

amendments thereto), IXSYS has performed all obligations under

such agreements to enable IXSYS to grant the license granted to

MEDIMMUNE hereunder, and there are no other requirements

necessary for IXSYS to grant such license.  IXSYS has neither

received nor delivered any written notice of default under the

IXSYS LICENSE AGREEMENTS.  IXSYS hereby covenants and agrees that

(i) it shall not consent to any amendment or modification or

termination of the IXSYS LICENSE AGREEMENTS without the prior

written consent of MEDIMMUNE; (ii) shall keep the IXSYS LICENSE

AGREEMENTS in full force and effect during the respective terms

thereof; (iii) shall not assign IXSYS LICENSE AGREEMENTS without

the written consent of MEDIMMUNE (which consent shall not be

unreasonably withheld), except that such consent shall not be

required for assignment in connection with the transfer or sale

of all or substantially all of its business, or in the event of

its merger, consolidation, change in control or similar

transaction, (x) provided that such assignment is subject to this

Agreement and (y) such assignment does not adversely affect the

IXSYS LICENSE AGREEMENTS or IXSYS rights thereunder; (iv)

MEDIMMUNE will be promptly advised of any notice that IXSYS has

breached or that an IXSYS LICENSE AGREEMENT will be terminated,

and to the extent permitted under the IXSYS LICENSE AGREEMENTS,

MEDIMMUNE shall have the right but not the obligation to cure any

such breach; and (v) prior to the EFFECTIVE DATE, IXSYS has

provided to MEDIMMUNE all information and data in its possession

and control regarding the safety and efficacy of the ANTIBODY

known as VITAXIN.

          (c)  The IXSYS PATENTS that exist as of the Effective

Date are listed in Appendix B.  IXSYS has neither received nor

delivered any written claim, nor has actual knowledge of any

claim, asserting the invalidity, unenforceability or misuse of

the IXSYS PATENTS.

    8.3   Disclaimer.  EXCEPT AS OTHERWISE EXPRESSLY SET FORTH IN

SECTIONS 8.1 and 8.2, NEITHER PARTY MAKES ANY REPRESENTATION OR

EXTENDS ANY WARRANTIES OF ANY KIND EITHER EXPRESS OR IMPLIED,

INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR VALIDITY OF

ANY PATENT RIGHTS ISSUED OR PENDING.



    SECTION 9 - Indemnification.

    9.1  MEDIMMUNE agrees to indemnify and hold harmless IXSYS,

its directors, officers, employees and agents (collectively, the

"Indemnitees") from and against all losses, liabilities, damages

and expenses (including reasonable attorneys' fees and costs)

incurred in connection with any claims, demands, actions or other

proceedings by any third party arising from (a) the research,

development, manufacture, use or sale of ANTIBODIES or PRODUCTS

by MEDIMMUNE, its AFFILIATES or SUBLICENSEES, (b) the use of

PRODUCTS by any purchasers thereof, (c) the use by MEDIMMUNE, its

AFFILIATES or SUBLICENSEES of the IXSYS PATENTS, IXSYS KNOW-HOW

or MATERIALS, or (d) any act or omission by MEDIMMUNE, its

AFFILIATES OR SUBLICENSEES the effect of which would cause IXSYS

to be in breach of its obligations under the IXSYS LICENSE

AGREEMENTS (without regard to any applicable cure or notice

requirements thereof).

    9.2  If any such claims or actions are made, IXSYS shall be

defended at MEDIMMUNE's sole expense by counsel selected by

MEDIMMUNE and reasonably acceptable to IXSYS provided that IXSYS

may, at its own expense, also be represented by counsel of its

own choosing.

    9.3  MEDIMMUNE's indemnification under Section 9.1 shall not

apply to the extent any loss, liability, damage or expense is

attributable to the gross negligence or intentional misconduct of

the Indemnitees.

    9.4  MEDIMMUNE may not settle any such claim, demand, action

or other proceeding or otherwise consent to an adverse judgment

in any such action or other proceeding that diminishes the rights

or interests of the Indemnitees without the express written

consent of the Indemnitees.

    9.5  IXSYS shall notify MEDIMMUNE promptly of any claim,

demand, action or other proceeding under Section 9.1 and shall

reasonably cooperate with all reasonable requests of MEDIMMUNE

with respect thereto.



    SECTION 10 -  Assignment; Successors.

    10.1 This Agreement shall not be assigned or otherwise

transferred (in whole or in part, whether voluntarily, by

operation of law or otherwise) by either of the parties without

the prior written consent of the other party (which consent shall

not be unreasonably withheld); provided, however, that either

party may, without such consent, assign this Agreement and its

rights and obligations hereunder to an AFFILIATE or in connection

with the transfer or sale of all or substantially all of its

business, or in the event of its merger, consolidation, change in

control or similar transaction, provided that such assignment by

IXSYS does not cause the termination of the rights and licenses

granted to MEDIMMUNE under this Agreement.  Any permitted

assignee shall assume all obligations of its assignor under this

Agreement.  Any purported assignment or transfer in violation of

this Section 10.1 shall be void.

    10.2 Subject to the limitations on assignment herein, this

Agreement shall be binding upon and inure to the benefit of said

successors in interest and assigns of MEDIMMUNE and IXSYS.



    SECTION 11 - Term and Termination.

    11.1 Except as otherwise specifically provided herein and

unless sooner terminated pursuant to Section 11.2 or 11.3 of this

Agreement, this Agreement and the licenses and rights granted

thereunder shall remain in full force and effect until MEDIMMUNE

has no further royalty obligation hereunder, at which time

MEDIMMUNE shall have a fully paid-up, non-cancelable,

nonexclusive license (i) under the IXSYS KNOW-HOW to research,

develop, make, have made, use, import, export and sell, offer to

sell or have sold PRODUCTS and (ii) to make, have made and use

the MATERIALS for all of the purposes of Section 11.1(i).

    11.2 MEDIMMUNE shall have the right to terminate this

Agreement upon ninety (90) days prior written notice to IXSYS.

    11.3 (a)  In addition to the right to terminate under Section

11.3(b), IXSYS shall have the right to terminate this Agreement

if and only if MEDIMMUNE breaches its obligations under Section 6

or 9.  If such a breach shall occur, IXSYS shall provide

MEDIMMUNE with written notice of such breach and if such breach

is not cured within thirty (30) days after such written notice,

IXSYS may terminate this Agreement by written notice to

MEDIMMUNE, provided such written notice is given within thirty

(30) days after the expiration of such initial thirty (30) day

period.

         (b)  If, in any calendar year, MEDIMMUNE (or its agent)

has not performed one of the following with respect to a PRODUCT

selected by MEDIMMUNE:

              (i) expended (CONFIDENTIAL TREATMENT REQUESTED) in

the calendar year for research and/or development and/or

production which in good faith is directed to a  PRODUCT;

              (ii) engaged in good faith in a Phase I trial with

respect to a PRODUCT;

              (iii) engaged in good faith in a Phase II trial

with respect to a PRODUCT;

              (iv) engaged in good faith in a Phase III trial

with respect to a PRODUCT;

              (v) good faith preparation and/or good faith review

of documents for filing a Biologics License Application (or its

equivalent) in the United States, Europe or Japan with respect to

a PRODUCT;

              (vi) good faith review and/or good faith analysis

of clinical protocols and/or data with respect to a PRODUCT

including but not limited to investigating a serious adverse

event in a clinical trial;

              (vii) engaged in good faith in the manufacturing of

GMP ANTIBODY for use in human clinical trials in the United

States, Europe or Japan, provided however that MEDIMMUNE shall in

good faith commence such human clinical trials of such ANTIBODY

within twelve (12) months after commencement of such

manufacturing.

              (viii) a Biologics License Application (or its

equivalent) is on file in the United States, Europe or Japan for

a PRODUCT;

              (ix) a Biologics License Application (or its

equivalent) has been approved for a PRODUCT in the United States,

Japan or Europe.

         then in such event, as IXSYS' sole and exclusive remedy,

within sixty (60) days after the end of such calendar year, IXSYS

shall have the right to send a written notice to MEDIMMUNE that

this Agreement shall be terminated, and if within sixty (60) days

after MEDIMMUNE receives such written notice MEDIMMUNE has not

cured such failure, this Agreement shall be terminated.

         (c)  If MEDIMMUNE receives a notice of termination under

Section 11.3(a) or 11.3(b), MEDIMMUNE shall have the right to

contest such termination by requesting arbitration under Section

13.2, and if MEDIMMUNE requests such arbitration, this Agreement

shall be terminated only if in such arbitration there is a final

determination that IXSYS has the right to terminate this

Agreement, as provided in this Section 11.3.

    11.4 Upon any termination of this Agreement, MEDIMMUNE, at

its option, shall be entitled to sell any completed inventory of

PRODUCT which remains on hand as of the date of the termination,

so long as MEDIMMUNE pays to IXSYS the royalties applicable to

said subsequent sales in accordance with the same terms and

conditions as set forth in this Agreement.

    11.5 In the event that this Agreement is terminated under

Section 11.2 or under Section 11.3  :

         (a)  MEDIMMUNE shall take all actions necessary to

assign and deliver to IXSYS all remaining quantities of all

ANTIBODIES and PRODUCTS developed by or on behalf of MEDIMMUNE

under this Agreement, all clinical and preclinical data and

information regarding such ANTIBODIES and PRODUCTS, and all

registrations and regulatory filings regarding such ANTIBODIES

and PRODUCTS that exist as of the time of termination, in each

case to the extent that MEDIMMUNE has transferable rights

thereto.

         (b)  IXSYS shall agree to pay a reasonable royalty to

MEDIMMUNE to compensate MEDIMMUNE for the relative value of its

contributions to ANTIBODIES and PRODUCT.  The parties shall enter

into good faith negotiations and attempt to reach mutual

agreement to determine such a reasonable royalty.  If such mutual

agreement is not reached within ninety (90) days after

commencement of such negotiations, then the determination shall

be submitted to binding arbitration under Section 13.2.

         (c)  Any sublicense granted under this Agreement shall

remain in full force and effect as a direct license between IXSYS

and the SUBLICENSEE under the terms and conditions of the

sublicense agreement, subject to the SUBLICENSEE agreeing to be

bound to IXSYS under such terms and conditions within thirty (30)

days after IXSYS provides written notice to the SUBLICENSEE of

the termination of this Agreement.  At the request of MEDIMMUNE,

IXSYS will acknowledge to a SUBLICENSEE IXSYS' obligations to the

SUBLICENSEE under this paragraph.

    11.6 The provisions of Sections 4, 9, 11.1, 11.4, 11.5 and

11.6 shall survive any expiration or termination of this

Agreement.

    11.7 Upon expiration or termination of this Agreement for any

reason, nothing herein shall be construed to release either party

from any obligation that matured prior to the effective date of

such expiration or termination.

    11.8 All rights and licensing granted under or pursuant to

this Agreement by IXSYS to MEDIMMUNE are, and shall irrevocably

be deemed to be, "intellectual property" as defined in Section

101(56) of the Bankruptcy Code.  In the event of the commencement

of a case by or against either party under any Chapter of the

Bankruptcy Code, this Agreement shall be deemed an executory

contract and all rights and obligations hereunder shall be

determined in accordance with Section 365(n) thereof.  Unless a

party rejects this Agreement and the other party decides not to

retain its rights hereunder, the other party shall be entitled to

a complete duplicate of (or complete access to, as appropriate)

all intellectual property and all embodiments of such

intellectual property held by the party and the party shall not

interfere with the rights of the other party, which are expressly

granted hereunder, to such intellectual property and all

embodiments of such intellectual property from another entity.

Further, this Agreement shall be deemed, upon presentation to

another entity, to be the same as an express instruction by the

party to such other entity to provide such intellectual property

and all embodiments of such intellectual property directly to the

other party.  Without limiting the foregoing provisions in this

paragraph, the other party shall be entitled to all post-

bankruptcy-petition improvements, updates, or developments of

intellectual property created hereunder.  If such intellectual

property is not fully developed as of the commencement of any

bankruptcy case, the other party shall have the right to complete

development of the property.

         SECTION 12 - Force Majeure.

    12.1 No failure or omission by the parties hereto in the

performance of any obligation of this Agreement (other than an

obligation for the payment of money) shall be a breach of this

Agreement, nor shall it create any liability, if the same shall

arise from any cause or causes beyond the reasonable control of

the affected party, including, but not limited to, the following,

which for purposes of this Agreement shall be regarded as beyond

the control of the party in question: acts of God; acts or

omissions of any government; any rules, regulations, or orders

issued by any governmental authority or by any officer,

department, agency or instrumentality thereof; fire; storm;

flood; earthquake; accident; war; rebellion; insurrection; riot;

invasion; strikes; and lockouts or the like; provided that the

party so affected shall use its commercially reasonable efforts

to avoid or remove such causes or nonperformance and shall

continue performance hereunder with the utmost dispatch whenever

such causes are removed.



    SECTION 13 - General Provisions.

    13.1 The relationship between IXSYS and MEDIMMUNE is that of

independent contractors.  IXSYS and MEDIMMUNE are not joint

venturers, partners, principal and agent, master and servant,

employer or employee, and have no relationship other than as

independent  contracting parties.  IXSYS shall have no power to

bind or obligate MEDIMMUNE in any manner.  Likewise, MEDIMMUNE

shall have no power to bind or obligate IXSYS in any manner.

    13.2 Any matter or disagreement under Section 6.1(d), 6.2,

11.3(c) or 11.5(b), which this Agreement specifies is to be

resolved by arbitration shall be submitted to a mutually selected

single arbitrator to so decide any such matter or disagreement.

The arbitrator shall conduct the arbitration in accordance with

the Rules of the American Arbitration Association, unless the

parties agree otherwise.  If the parties are unable to mutually

select an arbitrator, the arbitrator shall be selected in

accordance with the procedures of the American Arbitration

Association.  The decision and award rendered by the arbitrator

shall be final and binding.  Judgment upon the award may be

entered in any court having jurisdiction thereof.  Any

arbitration pursuant to this section shall be held in San Diego,

California or such other place as may be mutually agreed upon in

writing by the parties.  The prevailing party in any such

arbitration shall be entitled to recover from the other party all

reasonable attorneys' fees and costs incurred by the prevailing

party in connection therewith.

    13.3 This Agreement sets forth the entire agreement and

understanding between the parties as to the subject matter

thereof and supersedes all prior agreements in this respect.

There shall be no amendments or modifications to this Agreement,

except by a written document which is signed by both parties.

    13.4 This Agreement shall be construed and enforced in

accordance with the laws of the State of California without

regard to the conflicts of law principles thereof.

    13.5 The headings in this Agreement have been inserted for

the convenience of reference only and are not intended to limit

or expand on the meaning of the language contained in the

particular article or section.

    13.6 Any delay in enforcing a party's rights under this

Agreement or any waiver as to a particular default or other

matter shall not constitute a waiver of a party's right to the

future enforcement of its rights under this Agreement, excepting

only as to an expressed written and signed waiver as to a

particular matter for a particular period of time.

    13.7 Any notices given pursuant to this Agreement shall be in

writing, delivered by any means, addressed to the other party at

its address indicated below, or to such other address as the

addressee shall have last furnished in writing to the addresser

and (except as otherwise provided in this Agreement) shall be

effective upon receipt by the addressee.

             To MEDIMMUNE:  MedImmune, Inc.
                            35 West Watkins Mill Road
                            Gaithersburg, MD 20878

             Copy to:       Carella, Byrne, Bain, Gilfillan,
                            Cecchi, Stewart & Olstein
                            6 Becker Farm Road
                            Roseland, New Jersey 07068
                            Fax No. (973) 994-1744
                            Attn: Elliot M. Olstein, Esq.

             To IXSYS:      Ixsys, Inc.
                            3520 Dunhill Road
                            San Diego, CA  92121
                            Attention:  President

             Copy to:       Pillsbury Madison & Sutro LLP
                            235 Montgomery Street, 16th Floor
                            San Francisco,  California  94104
                            Attention:  Thomas E. Sparks, Jr.

    IN WITNESS WHEREOF, the parties have executed this Agreement

as of the date set forth above.


IXSYS, INC.                      MEDIMMUNE, INC.


By: /s/ Janine M. Taylor                By:  /s/ David M. Mott

Name: Janine M. Taylor                  Name: David M. Mott

Title: President & Chief Operating      Title: Vice Chairman &
Officer                                 Chief Financial Officer



Exhibit 10.98

     STOCK PURCHASE AGREEMENT


THIS STOCK PURCHASE AGREEMENT (the "Agreement") is made as of
the 24th day of February, 1999 by and between IXSYS, INC., a
Delaware corporation (the "Company"), and MedImmune, Inc.
("Purchaser").

     W I T N E S S E T H:

     WHEREAS, the Company and Purchaser have entered into a
License Agreement dated as of even date herewith (the "License
Agreement") pursuant to which the Company has granted the
Purchaser a license to certain technology; and

     WHEREAS, pursuant to Section 6.13 of the License Agreement,
the Purchaser has agreed to purchase the Common Stock described
in this Agreement on the terms and conditions set forth herein:

     NOW, THEREFORE, the parties hereby agree as follows:

     1.  Purchase and Sale of Stock.

     1.1  Sale and Issuance of Common Stock.  Subject to the
terms and conditions of this Agreement, Purchaser agrees to
purchase and the Company agrees to sell and issue to Purchaser
(CONFIDENTIAL TREATMENT REQUESTED) shares of the Company's
Common Stock at the Closing for a purchase price (the "Purchase
Price") of (CONFIDENTIAL TREATMENT REQUESTED) per share.

     1.2  Closing.  The purchase and sale of the Common Stock
shall take place at the offices of the Company at 3520 Dunhill
Street, San Diego, California, at 10:00 A.M. on February 24,
1999 (the "Closing").  At the Closing the Company shall deliver
to Purchaser a certificate representing the Common Stock which
Purchaser is purchasing against delivery to the Company by
Purchaser of a bank wire in the amount of (CONFIDENTIAL
TREATMENT REQUESTED) payable to the Company's order.

     2.  Representations and Warranties of the Company.  The
Company hereby represents and warrants to Purchaser that:

     2.1  Organization.  The Company is a corporation duly
organized, validly existing and in good standing under the laws
of the State of Delaware and has all requisite corporate power
and authority to carry on its business as now conducted and as
proposed to be conducted and is qualified to do business as a
foreign corporation and is in good standing in each jurisdiction
in which qualification is necessary under applicable law, except
where the failure to be so qualified would not have a material
adverse effect on its business.

     2.2  Authorization.  All corporate action on the part of
the Company, its officers, directors and stockholders necessary
for the authorization, execution and delivery of this Agreement,
the performance of all obligations of the Company hereunder and
the authorization, issuance and delivery of the Common Stock
being sold hereunder, to the extent that the foregoing requires
performance on or prior to the Closing, has been taken or will
be taken on or prior to the Closing, and this Agreement
constitutes a valid and legally binding obligation of the
Company enforceable against the Company in accordance with its
terms.

     2.3  Valid Issuance of Common Stock.  The Common Stock
which is being purchased by Purchaser hereunder, when issued,
sold and delivered in accordance with the terms hereof for the
consideration expressed herein, will be duly and validly issued,
fully paid and nonassessable.

     2.4  Governmental Consents.  No consent, approval, order or
authorization of, or registration, qualification, designation,
declaration or filing with, any federal, state, local or
provincial governmental authority on the part of the Company is
required in connection with the consummation of the transactions
contemplated by this Agreement, except for any post-sale filings
pursuant to applicable state securities laws, which filings will
be effected within the applicable time periods.

     2.5  No Conflicts.  Neither the execution, delivery and
performance of this Agreement by the Company nor the
consummation by the Company of the transactions contemplated
hereby will result in the breach or violation of any of the
terms and provisions of, or constitute a default under, any
statute, any rule, regulation or order of any governmental
agency or body or any court, domestic or foreign, having
jurisdiction over the Company or any of its properties, (ii) any
agreement or instrument to which the Company is a party or by
which the Company is bound or to which any of the properties of
the Company is subject or (iii) the certificate of incorporation
or by-laws or other organizational documents of the Company,
which breach or violation would be materially adverse to the
Company.

     2.6  Capitalization.  At the Closing, the authorized
capital stock of the Company will be (i) (CONFIDENTIAL TREATMENT
REQUESTED) shares of Common Stock and (ii) (CONFIDENTIAL
TREATMENT REQUESTED)  shares of Preferred Stock.   Immediately
prior to the Closing, (CONFIDENTIAL TREATMENT REQUESTED) shares
of common stock and (CONFIDENTIAL TREATMENT REQUESTED) shares of
preferred stock (convertible as of the Closing into
(CONFIDENTIAL TREATMENT REQUESTED) shares of Common Stock)
were issued and outstanding.

     3.  Representations, Warranties and Covenants of Purchaser.
Purchaser hereby represents, warrants and covenants that:

     3.1  Authorization.  This Agreement constitutes its valid
and legally binding obligation.

     3.2  No Conflicts.  Neither the execution, delivery and
performance of this Agreement by Purchaser nor the consummation
by Purchaser of the transactions contemplated hereby will result
in the breach or violation of any of the terms and provisions
of, or constitute a default under, any statute, any rule,
regulation or order of any governmental agency or body or any
court, domestic or foreign, having jurisdiction over Purchaser
or any of its properties, (ii) any agreement or instrument to
which Purchaser is a party or by which Purchaser is a party or
by which Purchaser is bound or to which any of the properties of
Purchaser is subject or (iii) the certificate of incorporation
or by-laws or other organizational documents of Purchaser, which
breach or violation would be materially adverse to Purchaser.

     3.3  Purchase Entirely for Own Account.  This Agreement is
made with Purchaser in reliance upon Purchaser's representation
to the Company, which by Purchaser's execution of this Agreement
Purchaser hereby confirms, that the Common Stock will be
acquired for investment for Purchaser's own account, not as a
nominee or agent, and not with a view to the resale or
distribution of any part thereof, and that Purchaser has no
present intention of selling, granting any participation in, or
otherwise distributing the same.  By executing this Agreement,
Purchaser further represents that Purchaser does not have any
contract, undertaking, agreement or arrangement with any person
to sell, transfer or grant participations to such person or to
any third person, with respect to any of the Common Stock.
Purchaser represents that it has full power and authority to
enter into this Agreement.

     3.4  Investment Experience.  Purchaser  acknowledges that
it is able to fend for itself, can bear the economic risk of its
investment and has such knowledge and experience in financial or
business matters that it is capable of evaluating the merits and
risks of the investment in the Common Stock.

     3.5  Restricted Common Stock.  Purchaser understands that
the shares of Common Stock it is purchasing are characterized as
"restricted securities" under the federal securities laws
inasmuch as they are being acquired from the Company in a
transaction not involving a public offering and that under such
laws and applicable regulations such securities may be resold
without registration under the Securities Act of 1933, as
amended (the "Securities Act"), only in certain limited
circumstances.  In this connection Purchaser represents that it
is familiar with Securities and Exchange Commission (the "SEC")
Rule 144, as presently in effect, and understands the resale
limitations imposed thereby and by the Securities Act.

     3.6  Accredited Investor.  Purchaser is an accredited
investor as defined in Rule 501(a) of Regulation D of the SEC
under the Securities Act.

     3.7  Confidentiality.  Purchaser hereby represents,
warrants and covenants that it shall maintain in confidence, and
shall not use or disclose without the prior written consent of
the Company, any information identified as confidential that is
furnished to it by the Company in connection with this Agreement
(as opposed to information furnished pursuant to the License
Agreement or other agreements between the parties).  This
obligation of confidentiality shall not apply, however, to any
information (a) in the public domain through no unauthorized act
or failure to act by Purchaser, (b) lawfully disclosed to
Purchaser by a third party who possessed such information
without any obligation of confidentiality, (c) known previously
by Purchaser or lawfully developed by Purchaser independent of
any disclosure by the Company or (d) required to be disclosed by
applicable law, regulation or bona fide legal process provided
Purchaser takes reasonable steps to restrict and maintain the
confidentiality of such disclosure and provides reasonable prior
notice to the Company.  Purchaser further covenants that
Purchaser shall return to the Company all tangible materials
containing such information upon request by the Company.  This
confidentiality covenant shall expire, as to any particular
disclosure, five years after such disclosure.

     3.8  Right of First Offer in Favor of the Company.  Before
any shares of the Common Stock purchased hereunder may be sold
or transferred, such shares shall first be offered to the
Company as follows:

          (a)  Purchaser shall promptly deliver a notice to the
Company stating (i) its bona fide intention to sell or transfer
such shares, (ii) the number of such shares to be sold or
transferred, and the basic terms and conditions of such sale or
transfer, (iii) the price for which it proposes to sell or
transfer such shares, and (iv) proof satisfactory to the Company
that the proposed sale or transfer will not violate any
applicable federal or state securities laws.  The notice shall
be signed by Purchaser and state that Purchaser has a binding
commitment to sell the number of shares specified in such notice
to a third party on the terms stated in such notice.

          (b)  Within 30 days after the receipt of the notice
(the "Notice Period"), the Company may elect to purchase all or
a portion of the shares to which such notice refers, at the
price per share specified in the notice.  The election to
purchase shall be made by written notice to Purchaser.  If the
Company elects not to purchase all such shares, the Company may
assign its rights to purchase any shares not purchased by the
Company.

          (c)  If all of the shares to which the notice refers
are not elected to be purchased, as provided in subparagraph
3.8(b) hereof, Purchaser may sell the shares to the purchaser or
transferee disclosed to the Company as provided below at a price
not less than the price specified in the notice, provided that
(i) Purchaser has disclosed to the Company the identity of the
proposed purchaser or transferee within five (5) business days
of expiration of the Notice Period and prior to consummation of
the sale or transfer, (ii) such sale or transfer is consummated
within three months of the date of said notice to the Company,
and (iii) any such sale is made in compliance with applicable
federal and state securities laws and not in violation of any
other contractual restrictions to which Purchaser is bound.  The
third-party purchaser shall acquire the shares of stock subject
to the Company's rights of first offer and shall require
compliance with the procedures described in this Section 3.8.

          (d)  Any proposed transfer on terms and conditions
different from those set forth in the notice, as well as any
subsequent proposed transfer shall again be subject to the
Company's rights of first offer and shall require compliance
with the procedures described in this Section 3.8.

          (e)  Notwithstanding anything to the contrary
contained in this Agreement, this Section 3.8 shall be
terminated and shall have no further force and effect  six (6)
months after the effective date of the Company's registration of
its common equity securities pursuant to Section 12 of the
Securities Exchange Act of 1934 (the "34 Act Registration").

     3.9  Further Limitations on Disposition.  Without in any
way limiting the representations set forth above and
notwithstanding the provisions of Section 3.8, Purchaser further
agrees that:

          (a)  Purchaser shall not directly or indirectly sell,
offer to sell, contract to sell, grant any option to purchase or
otherwise transfer or dispose of all or any portion of the
Common Stock purchased hereunder, in violation of the Securities
Act, the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), or the rules of the Commission promulgated
thereunder, including Rule 144 under the Securities Act.  If
reasonably requested by the Company, Purchaser shall have
furnished the Company with an opinion of counsel, reasonably
satisfactory to the Company and its counsel, that any permitted
transfer or disposition will not require registration of such
shares under the Securities Act.  It is agreed that the Company
will not require opinions of counsel for transactions made
pursuant to Rule 144, as currently in existence, except in
unusual circumstances.

          (b)  During the period commencing as of the Closing
until (CONFIDENTIAL TREATMENT REQUESTED) months following the
conclusion of the last research and development program
conducted pursuant to the Research and Assignment and License
Agreements entered into between Purchaser and the Company
simultaneously herewith or which may later be entered into
pursuant to the Selection Agreement entered into between
Purchaser and the Company simultaneously herewith the number of
shares of Common Stock of the Company purchased hereunder which
Purchaser may, directly or indirectly, sell, offer to sell,
contract to sell, grant any option to purchase or otherwise
transfer or dispose of during the preceding (CONFIDENTIAL
TREATMENT REQUESTED) shall not exceed (CONFIDENTIAL TREATMENT
REQUESTED)  of the Company's outstanding Common Stock or Common
Stock into which outstanding Preferred Stock of the Company is
then convertible.

          (c)  During the period commencing as of the effective
date of the Company's 34 Act Registration until (CONFIDENTIAL
TREATMENT REQUESTED) days thereafter Purchaser shall not,
directly or indirectly sell, offer to sell, contract to sell,
grant any option to purchase or otherwise transfer or dispose of
(i) any of the Common Stock purchased hereunder pursuant to this
Agreement at any time during the first (CONFIDENTIAL TREATMENT
REQUESTED) day(s) of such period and (ii) not more than
(CONFIDENTIAL TREATMENT REQUESTED) of the Common Stock purchased
hereunder  at any time during the succeeding (CONFIDENTIAL
TREATMENT REQUESTED) day(s) of such period.

          (d)  Prior to Purchaser entering into any agreement or
commitment to sell, grant options to purchase or otherwise
transfer or dispose of any shares of Common Stock purchased
hereunder, Purchaser agrees to provide the Board of Directors or
President of the Company at least fourteen (14) days prior
written notice of Purchaser's intent to transfer or dispose of
such shares and to discuss with the Company in good faith a plan
for transferring or disposing of the shares in any orderly
fashion.

          (e)  Without limiting the foregoing, prior to the
effective date of the Company's 34 Act Registration, Purchaser
shall not, without the prior written consent of the Company,
directly or indirectly sell, offer to sell, grant an option to
purchase or otherwise transfer or dispose of any of the Common
Stock to any person engaged in any business directly competitive
with the Company.  For purposes of this subsection 3.9(d)
"directly competitive" shall mean the field of(CONFIDENTIAL
TREATMENT REQUESTED), or such other (CONFIDENTIAL TREATMENT
REQUESTED) field in which at least (CONFIDENTIAL TREATMENT
REQUESTED) of the Company's work force (on a full time
equivalent basis) is engaged at the time of the proposed
transfer.

     3.10 Standstill Provisions.  Commencing as of the Closing
and until the  first anniversary of the effective date of the
Company's 34 Act Registration, Purchaser (including all
affiliates or agents of Purchaser) shall not acquire beneficial
ownership of any shares of common stock of the Company, any
securities convertible into or exchangeable for common stock, or
any other right to acquire common stock, except by way of stock
dividends or other distributions to Purchaser as a holder of the
Common Stock generally, from the Company or any other person or
entity, without the prior written consent of the Company, which
consent may be withheld in the Company's sole discretion, if
such acquisition should cause Purchaser (including all
affiliates of Purchaser) to beneficially own more (CONFIDENTIAL
TREATMENT REQUESTED) of the Company's outstanding voting stock
(assuming the full conversion of all convertible securities of
the Company held by Purchaser and its affiliates); provided,
however, that in no event shall (i) the original purchase of the
Common Stock pursuant to this Agreement, (ii) the purchase of
additional shares of Common Stock in lieu of milestone payments
payable pursuant to the License Agreement or (iii) any reduction
in the outstanding shares of the Company's capital stock (or
rights or options), cause a violation of this Section 3.10.  In
order to facilitate Purchaser's compliance with this Section
3.10, upon the written request of Purchaser the Company shall
inform Purchaser of the number of outstanding shares of the
Company's voting stock, and Purchaser may rely on such
information in any purchase it makes within 30 days of the
receipt of such information.

     3.11 Voting Agreement. Purchaser agrees that it shall, so
long as it holds shares of the Company's Common Stock, vote such
shares with respect to any proposed sale of all or substantially
all of the assets, merger, combination or reorganization of the
Company in the same manner as stockholders holding a majority of
the voting securities of the Company and who are not themselves
a party to any such sale, merger, combination or reorganization.
This Section 3.11 shall terminate and shall have no further
force and effect twelve (12) months after the effective date of
the Company's 34 Act Registration.

     3.12 Legends.  It is understood that the certificates
evidencing the Common Stock may bear one or all of the following
legends:

          (a)  "The securities represented by this certificate
have not been registered under the Securities Act of 1933.  They
may not be sold, offered for sale, pledged or hypothecated in
the absence of a registration statement in effect with respect
to the securities under such Act or an opinion of counsel satis
factory to the Company that such registration is not required or
unless sold pursuant to Rule 144 of such Act."

          (b)  "The securities represented by this certificate
are subject to certain rights of first offer and repurchase and
certain restrictions on resale set forth in the Stock Purchase
Agreement dated February 24, 1999 between the Company and
MedImmune, Inc.  A copy of such restrictions and rights of first
offer and repurchase may be obtained from the Company upon
request."

          (c)  Any legend required by the laws of the State of
California or other jurisdiction.

     3.13 Stop-Transfer Instructions.  In order to enforce the
provisions of Sections 3.8 and 3.9 hereof, the Company may
impose stop-transfer instructions with respect to the shares of
the Common Stock held by Purchaser (and the shares or securities
of every other person subject to the foregoing restrictions).

     3.14 Transfers to Affiliates.  Notwithstanding the
provisions of Sections 3.8 and 3.9(b) and (c) hereof, Purchaser
may transfer the Common Stock to any affiliate of Purchaser who
agrees to be bound by the terms of this Agreement.  For purposes
of this Section 3.14, "affiliate" shall mean any entity which
controls or is controlled by Purchaser, and "control" shall mean
ownership of at least (CONFIDENTIAL TREATMENT REQUESTED) of the
voting stock or other ownership interest.

     4.  California Commissioner of Corporations.

     4.1  Corporate Securities Law.  THE SALE OF THE COMMON
STOCK WHICH ARE THE SUBJECT OF THIS AGREEMENT HAS NOT BEEN
QUALIFIED WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF
CALIFORNIA AND THE ISSUANCE OF SUCH COMMON STOCK OR THE PAYMENT
OR RECEIPT OF ANY PART OF THE CONSIDERATION THEREFOR PRIOR TO
SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE OF COMMON STOCK
IS EXEMPT FROM QUALIFICATIONS BY SECTION 25100, 25102 OR 25105
OF THE CALIFORNIA CORPORATIONS CODE.  THE RIGHTS OF ALL PARTIES
TO THIS AGREEMENT ARE EXPRESSLY CONDITIONED UPON SUCH
QUALIFICATION BEING OBTAINED, UNLESS THE SALE IS SO EXEMPT.

     5.  Covenants.

     5.1  Delivery of Financial Statements.  The Company shall
deliver to Purchaser such financial statements of the Company
which the Company from time to time distributes to other holders
of the Company's Common Stock, concurrently with such
distribution.

     5.2  Registration Rights.  Purchaser shall have such
registration rights with respect to the Common Stock as are set
forth on EXHIBIT A attached hereto; provided, however, that
Purchaser shall agree to be bound by the provisions of such
EXHIBIT A as a condition precedent to the enjoyment of any such
rights and, at the written request of the Company in connection
with any request by Purchaser to exercise such rights, Purchaser
shall execute a specific acknowledgement and agreement to be so
bound (or else Purchaser shall be deemed to have forfeited such
rights).

     6.  Miscellaneous.

     6.1  Successors and Assigns.  The terms and conditions of
this Agreement shall inure to the benefit of and be binding upon
the respective successors and permitted assigns of the parties.
Nothing in this Agreement, express or implied, is intended to
confer upon any party other than the parties hereto or their
respective successors and assigns any rights, remedies, obli
gations, or liabilities under or by reason of this Agreement,
except as expressly provided in this Agreement.

     6.2  Governing Law.  This Agreement shall be governed by
and construed under the laws of the State of California
(irrespective of its choice of law principles).

     6.3  Counterparts.  This Agreement may be executed in two
or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same
instrument.

     6.4  Titles and Subtitles.  The titles and subtitles used
in this Agreement are used for convenience only and are not to
be considered in construing or interpreting this Agreement.

     6.5  Notices.  Unless otherwise provided, any notice
required or permitted under this Agreement shall be given in
writing and shall be deemed effectively given upon personal
delivery to the party to be notified (or upon the date of
attempted delivery where delivery is refused) or, if sent by
telecopier, telex, telegram, or other facsimile means, upon
receipt of appropriate confirmation of receipt, or upon deposit
with the United States Postal Service, by registered or
certified mail, or next day air courier, with postage and fees
prepaid and addressed to the party entitled to such notice at
the address indicated for such party on the signature page
hereof, or at such other address as such party may designate by
10 days' advance written notice to the other parties to this
Agreement.

     6.6  Finder's Fee.  Each party represents that it neither
is nor will be obligated for any finder's fee or commission in
connection with this transaction.  Purchaser agrees to indemnify
and hold harmless the Company from any liability for any
commission or compensation in the nature of a finder's fee (and
the costs and expenses of defending against such liability or
asserted liability) for which Purchaser or any of its officers,
partners, employees or representatives is responsible.

     The Company agrees to indemnify and hold harmless Purchaser
from any liability for any commission or compensation in the
nature of a finder's fee (and the costs and expenses of
defending against such liability or asserted liability) for
which the Company or any of its officers, employees or
representatives is responsible.

     6.7  Amendments and Waivers.  Any term of this Agreement
may be amended and the observance of any term of this Agreement
may be waived (either generally or in a particular instance and
either retroactively or prospectively), only with the written
consent of the Company and the holders of a majority of the
Common Stock purchased under this Agreement.  Any amendment or
waiver effected in accordance with this paragraph shall be
binding upon each holder of  Common Stock purchased under this
Agreement at the time outstanding, each future holder of such
Common Stock, and the Company.

     6.8  Severability.  If one or more provisions of this
Agreement are held to be unenforceable under applicable law,
such provision shall be excluded from this Agreement and the
balance of this Agreement shall be interpreted as if such
provision were so excluded and shall be enforceable in accor
dance with its terms.

     6.9  Entire Agreement.  This Agreement and the Related
Agreements embody the entire agreement and understanding of the
parties hereto and thereto in respect of the subject matter
contained herein and therein and supersede all prior agreements
and understandings between the parties with respect to such
subject matter.  No party shall be liable or bound to any other
party in any manner by any warranties, representations or
covenants except as specifically set forth herein or therein.

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




     IXSYS, INC.                             MEDIMMUNE, INC.


By: /s/ Janine M. Taylor                By:  /s/ David M. Mott

Name: Janine M. Taylor                  Name: David M. Mott

Title: President & Chief Operating     Title: Vice Chairman &
Officer                                 Chief Financial Officer


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     This schedule contains summary financial information extracted from
     MedImmune, Inc.'s quarterly report on Form 10-Q for the three months
     ended March 31, 1999 and is qualified in its entirety by reference to
     such filing.
</LEGEND>             
<CIK>                                          0000873591   
<NAME>                                         MEDIMMUNE, INC.                
<MULTIPLIER>                                   1,000
       
<S>                             <C>
<PERIOD-TYPE>                                  3-MOS
<FISCAL-YEAR-END>                              Dec-31-1999
<PERIOD-END>                                   Mar-31-1999
<CASH>                                          30,090
<SECURITIES>                                   163,964
<RECEIVABLES>                                   42,329
<ALLOWANCES>                                         0
<INVENTORY>                                     21,475
<CURRENT-ASSETS>                               276,043
<PP&E>                                          76,249
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                 416,841
<CURRENT-LIABILITIES>                           72,885
<BONDS>                                         80,926
                                0
                                          0
<COMMON>                                           556
<OTHER-SE>                                     260,344
<TOTAL-LIABILITY-AND-EQUITY>                   416,841
<SALES>                                        126,996
<TOTAL-REVENUES>                               128,721
<CGS>                                           31,267
<TOTAL-COSTS>                                   82,967
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 928
<INCOME-PRETAX>                                 47,013
<INCOME-TAX>                                    18,178
<INCOME-CONTINUING>                             28,835
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    28,835
<EPS-PRIMARY>                                     0.52
<EPS-DILUTED>                                     0.45
        

</TABLE>


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