NEORX CORP
10-Q, 1996-08-14
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q


(Mark One)

  X      Quarterly Report pursuant to Section 13 or 15(d)
 ---     of the Securities Exchange Act of 1934 for the Quarterly
         Period ended June 30, 1996 or

         Transition  Report  pursuant  to Section 13 or 15(d) of the  Securities
 ---     Exchange Act of 1934 for the transition  period from  _____________  to
         _______________.


Commission File Number 0-16614

                                NeoRx Corporation
             (Exact Name of Registrant as Specified in its Charter)

     WASHINGTON                                                  91-1261311
(State or other jurisdiction of                                 (IRS Employer
 incorporation or organization)                              Identification No.)

               410 West Harrison Street, Seattle, Washington 98119
               (Address of Principal Executive Offices) (Zip Code)

       Registrant's telephone number, including area code: (206) 281-7001



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
                                                        
Applicable only to corporate issuers:

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock as of the latest practicable date.

As of August 9, 1996 there were outstanding 15.5 million shares of the Company's
common stock, $.02 par value.


<PAGE>





                                TABLE OF CONTENTS
               
<TABLE>
<CAPTION>
                                                            PAGE
                                                            ----
<S>                                                         <C>   

PART I             FINANCIAL INFORMATION

Item 1.            Financial Statements:
                   Balance Sheets                              3
                   Statements of Operations                    4
                   Statements of Cash Flows                    5
                   Notes to Financial Statements               6
Item 2.            Management's Discussion and Analysis
                   of Results of Operations and
                   Financial Condition, Liquidity and
                   Capital Resources                           8


PART II            OTHER INFORMATION

Item 1.            Legal Proceedings                           9

Item 4.            Submission of Matters to a Vote of
                   Security Holders                            10

Item 6.            Exhibits and Reports on Form 8-K            10
</TABLE>


                                        2                      
<PAGE>



                                NEORX CORPORATION
                          (a development stage company)


BALANCE SHEETS
(in thousands)
<TABLE>
<CAPTION>
                                                              June 30,        December 31,
                                                                1996              1995
                                                             ---------        ------------
                                                            (unaudited)

                                     ASSETS
<S>                                                          <C>                 <C>

CURRENT ASSETS:
  Cash and cash equivalents                                  $  4,580            $  7,182
  Short-term investments                                       14,824               8,937
  Inventories                                                     585                 538
  Prepaids and other                                              971                 931
                                                              -------             -------
    Total current assets                                       20,960              17,588
                                                              -------             -------

FACILITIES AND EQUIPMENT, at cost:
  Equipment and furniture                                       3,658               3,498
  Leasehold improvements                                        3,216               3,233  
                                                              -------             -------
                                                                6,874               6,731
  Less: accumulated depreciation and amortization              (6,114)             (5,914)
                                                              -------             -------
    Facilities and equipment, net                                 760                 817
                                                              -------             -------

OTHER ASSETS                                                      118                 113
                                                              -------             -------
                                                             $ 21,838            $ 18,518
                                                              =======             =======


                      LIABILITIES AND SHAREHOLDERS' EQUITY

CURRENT LIABILITIES:
  Accounts payable                                           $    681            $  1,511
  Accrued liabilities                                             702                 531
  Deferred revenue                                                250                 250
  Current portion of capital leases                                49                  51
                                                              -------             -------
    Total current liabilities                                   1,682               2,343
                                                              -------             -------

NON-CURRENT LIABILITIES:
  Convertible subordinated debentures, 9 3/4%                   1,195               1,195
  Capital leases, less current portion                             66                  88
                                                              -------             -------
    Total non-current liabilities                               1,261               1,283
                                                              -------             -------

COMMITMENTS AND CONTINGENCIES

SHAREHOLDERS' EQUITY:
  Series preferred stock, $.02 par value,
    3,000,000 shares authorized:
      Convertible exchangeable preferred stock, Series 1
        208,000 shares issued and outstanding                       4                  4
      Convertible preferred stock, Series 2,
        40,000 shares issued and outstanding                        1                  -
  Common stock, $.02 par value, 60,000,000
    shares authorized, 15,482,000 and
    14,359,000 shares issued and
    outstanding, respectively                                     310                287
  Additional paid-in capital                                  139,105            128,098
  Deferred compensation                                             -               (139)
  Accumulated deficit since inception                        (120,525)          (113,358)
                                                              -------            -------
    Total shareholders' equity                                 18,895             14,892
                                                              -------            -------
                                                             $ 21,838           $ 18,518
                                                              =======            =======
</TABLE>

                       See notes to financial statements.

                                        3

<PAGE>

                                NEORX CORPORATION
                          (a development stage company)

STATEMENTS OF OPERATIONS
(in thousands, except per share amounts)
(unaudited)
<TABLE>
<CAPTION>
                                                                                   February 13,   
                                      Three months               Six months            1984 
                                     ended June 30,            ended June 30,      (inception)
                                 ----------------------    --------------------     to June 30,
                                  1996            1995      1996          1995         1996
                                 ---------    ---------    ---------    ---------    --------
<S>                              <C>          <C>          <C>          <C>          <C> 
REVENUES:

  Contract revenues and fees     $       -    $       -    $      21    $      57    $  37,661
                                 ---------    ---------    ---------    ---------    ---------
OPERATING EXPENSES:

  Research and development           2,275        1,786        4,691        3,985       96,722

  General and administrative         1,251        1,191        2,617        2,313       57,268
                                 ---------    ---------    ---------    ---------    ---------

    Total operating expenses         3,526        2,977        7,308        6,298      153,990
                                 ---------    ---------    ---------    ---------    ---------

Loss from operations                (3,526)      (2,977)      (7,287)      (6,241)    (116,329)

Other income (expense):
  investment and interest
    income, net                        296          248          593          460       11,449

  Interest expense                     (34)         (33)         (71)         (67)      (5,566)

  Litigation expense, net                -            -            -            -         (985)

  Debt conversion expense                -            -            -            -       (1,228)
                                 ---------    ---------    ---------    ---------    ---------

Net loss                         $  (3,264)   $  (2,762)   $  (6,765)   $  (5,848)   $(112,659)
                                 =========    =========    =========    =========    =========

Preferred stock dividends             (211)        (162)        (402)        (344)      (6,305)
                                 ---------    ---------    ---------    ---------    ---------
Net loss applicable to

  common shares                  $  (3,475)   $  (2,924)   $  (7,167)   $  (6,192)   $(118,964)
                                 =========    =========    =========    =========    =========

Net loss per common share        $    (.23)   $    (.23)   $    (.47)   $    (.50)   $  (20.77)
                                 =========    =========    =========    =========    =========
Weighted average common shares
  outstanding                       15,416       12,952       15,185       12,487        5,727
                                 =========    =========    =========    =========    =========
</TABLE>


                       See notes to financial statements.

                                        4

<PAGE>



                                NEORX CORPORATION
                          (a development stage company)
STATEMENTS OF CASH FLOWS
(in thousands)(unaudited)
<TABLE>
<CAPTION>
                                                                                        February 13,     
                                          Three months              Six months             1984 
                                          ended June 30,           ended June 30,       (inception)
                                     ----------------------    ----------------------    to June 30, 
                                      1996            1995      1996            1995        1996
                                     ------          ------    ------          ------      ------
<S>                                  <C>          <C>          <C>          <C>          <C>  
CASH FLOWS FROM OPERATING
ACTIVITIES:
     
Net loss                             $  (3,264)   $  (2,762)   $  (6,765)   $  (5,848)   $(112,659)
                                     ---------    ---------    ---------    ---------    ---------
Adjustments to reconcile net
  loss to net cash (used in)
  operating activities:
  Depreciation and amortization            102          106          200          211        9,653
  (Increase) decrease in
    inventories                            (25)         (25)         (47)           2         (585)
  (Increase) decrease in
    prepaids and other assets               57          243          (99)          23         (698)
  Increase (decrease) in
    accounts payable and
    accrued liabilities                   (102)        (268)        (417)        (152)       1,208
  Increase in deferred
    revenue                                  -            -            -            -          250
  Return of common stock for
    license                                  -            -            -            -       (3,850)
  Debt conversion expense                    -            -            -            -        1,228
  Compensation expense on
    stock awards and options                 -           23          139           46        1,263
  Common stock issued for services           -            -          241           80        2,658
                                     ---------    ---------    ---------    ---------    ---------
       Total adjustments                    32           79           17          210       11,127
                                     ---------    ---------    ---------    ---------    ---------
Net cash (used in) operating
  activities                            (3,232)      (2,683)      (6,748)      (5,638)    (101,532)
                                     ---------    ---------    ---------    ---------    ---------
CASH FLOWS FROM INVESTING
ACTIVITIES:
Proceeds from (purchases of)
  short-term investments                 4,909       (2,383)      (5,887)      (1,282)     (14,824)
Facilities and equipment purchases        (105)         (29)        (143)         (70)      (9,063)
Other                                        -            -           54            -         (102)
                                     ---------    ---------    ---------    ---------    ---------
Net cash provided by (used in)
  investing activities                   4,804       (2,412)      (5,976)      (1,352)     (23,989)
                                     ---------    ---------    ---------    ---------    ---------
CASH FLOWS FROM FINANCING
ACTIVITIES:
Proceeds from sale of common stock
  and warrants                               -        6,451        5,771        6,451      105,957
Proceeds from sale of convertible
  debentures                                 -            -            -            -       26,606
Proceeds from sales of preferred
  stock                                      -            -        4,425            -        4,425
Proceeds from capital lease
  obligations                                -            -            -            -        2,322
Repayments of capital lease
  obligations                              (13)          (3)         (24)          (8)      (3,588)
Proceeds from stock options
  exercised                                 35           13          204           48        1,577
Preferred stock issuance costs               -            -            -            -         (792)
Preferred stock dividends                 (254)        (204)        (254)        (204)      (5,769)
Repurchase of preferred stock                -            -            -            -         (305)
Repurchase of common stock                   -            -            -            -         (332)
                                     ---------    ---------    ---------    ---------    ---------
Net cash provided by (used in)
  financing activities                    (232)       6,257       10,122        6,287      130,101
                                     ---------    ---------    ---------    ---------    ---------
Net increase (decrease) in cash
  and cash equivalents                   1,340        1,162       (2,602)        (703)       4,580
Cash and cash equivalents:
Beginning of period                      3,240          563        7,182        2,428            -
                                     ---------    ---------    ---------    ---------    ---------
End of period                        $   4,580    $   1,725    $   4,580    $   1,725    $   4,580
                                     =========    =========    =========    =========    =========
</TABLE>
                       See notes to financial statements.

                                        5

<PAGE>


                                NEORX CORPORATION
                          (a development stage company)


NOTES TO FINANCIAL STATEMENTS

1.  Basis of Presentation

The interim financial statements contained herein have been prepared pursuant to
the rules and  regulations of the Securities  and Exchange  Commission.  Certain
information  and  note  disclosures   normally   included  in  annual  financial
statements prepared in accordance with generally accepted accounting  principles
have been condensed or omitted pursuant to those rules and regulations, although
the  Company  believes  that  the  disclosures  made  are  adequate  to make the
information presented not misleading.  These financial statements should be read
in conjunction with the Company's Form 10-K for the year ended December 31,
1995.

In the opinion of  management,  the  interim  financial  statements  reflect all
adjustments,  consisting only of normal recurring  accruals necessary to present
fairly the Company's  financial  position as of June 30, 1996 and the results of
operations  and cash  flows for the three and six month  periods  ended June 30,
1996 and 1995 and for the period from inception to June 30, 1996.

The results of  operations  for the three and six month  periods  ended June 30,
1996 are not necessarily  indicative of the expected  operating  results for the
full year.


                                        6

<PAGE>



                                NEORX CORPORATION
                          (a development stage company)


NOTES TO FINANCIAL STATEMENTS (continued)

2.  Shareholders' Equity

Changes in shareholders'  equity from December 31, 1995 to June 30, 1996 were as
follows (in thousands):
<TABLE>
<CAPTION>
<S>                                     <C>     
Balance December 31, 1995               $ 14,892
Preferred stock issued                     4,425
Common stock issued                        6,606
Preferred stock dividends                   (402)
Net loss                                  (6,765)
Amortization of deferred compensation        139
                                        --------
Balance June 30, 1996                   $ 18,895
                                        ========
</TABLE>

3. In May 1996,  the  Company  exchanged  7,000  shares of Series 2  Convertible
Preferred Stock for 123,120 shares of Common Stock and paid accrued dividends on
the shares by issuing 2,195 shares of Common Stock valued at $6.85 per share.



                                        7

<PAGE>



                                NEORX CORPORATION
                          (a development stage company)


Item 2. Management's Discussion and Analysis of Results or Operations and 
        Financial Condition, Liquidity and Capital Resources

QUARTER AND SIX MONTHS  ENDED JUNE 30,  1996  COMPARED TO QUARTER AND SIX MONTHS
ENDED JUNE 30, 1995.

There were no contract  revenues or fees earned in the  quarters  ended June 30,
1996 or 1995. For the six months ended June 30, 1996, contract revenues and fees
were  $21,000  compared to $57,000  recorded  for the six months  ended June 30,
1995.

Total  operating  expenses  increased 18% to $3,526,000  from $2,977,000 for the
quarters  ended  June 30,  1996 and  1995,  respectively,  and for the six month
periods  increased 16% to $7,308,000 from  $6,298,000.  Research and development
expenses increased 27% to $2,275,000 from $1,786,000 for the quarters ended June
30, 1996 and 1995, respectively,  and for the six month periods increased 18% to
$4,691,000  from  $3,985,000.  The  increases  in both the  three  and six month
periods were primarily due to antibody humanization and increased clinical trial
activities.  General and administrative expenses increased 5% to $1,251,000 from
$1,191,000 for the quarters ended June 30, 1996 and 1995, respectively,  and for
the six month periods increased 13% to $2,617,000 from $2,313,000.  The increase
for the six  month  period  was  principally  due to patent  filing  costs and a
noncash charge resulting from accelerated vesting of a stock option.

Interest  income  increased  19% to $296,000  from $248,000 for the three months
ended June 30, 1996 and 1995,  respectively,  and increased 29% to $593,000 from
$460,000  for the six months  ended June 30,  1996 and 1995,  respectively.  The
increases were primarily due to higher cash balances  resulting from financings.
Interest expense remained essentially unchanged for the periods.

Net loss increased 18% to $3,264,000 from $2,762,000 for the quarters ended June
30, 1996 and 1995, respectively, and for the six months periods increased 16% to
$6,765,000 from $5,848,000.

LIQUIDITY AND CAPITAL RESOURCES.

The Company  expects  that its capital  resources  and  interest  income will be
sufficient  to finance its  currently  anticipated  working  capital and capital
requirements  through  late 1997.  The  Company's  working  capital  and capital
requirements will depend upon numerous

                                        8

<PAGE>



                                NEORX CORPORATION
                          (a development stage company)


Item 2. (Continued)

factors,  including  results of research and  development  activities,  clinical
trials,  the levels of resources that the Company  devotes to  establishing  and
expanding   marketing   and   manufacturing   capabilities,    competitive   and
technological developments and the timing and cost of relationships with parties
to  collaborative  agreements.  The  Company  will  need  to  raise  substantial
additional  funds to conduct  research and development  activities,  preclinical
studies and clinical  trials  necessary to bring its products to market,  and to
establish marketing and limited manufacturing capabilities.  The Company intends
to  seek  additional  funding  through  public  or  private  equity  financings,
arrangements with corporate  collaborators or other sources.  Adequate funds may
not be available when needed or on terms acceptable to the Company.

When  used in this  report,  the  words  "expects",  "anticipates"  and  similar
expressions are intended to identify forward-looking statements. Such statements
are subject to certain  risks and  uncertainties  such as those  factors  stated
above that could cause actual results to differ materially from those projected.
See "Important  Factors Regarding  Forward-Looking  Statements" in the Company's
Form 10-K for the year ended  December 31, 1995.  Readers are  cautioned  not to
place undue reliance on these forward- looking  statements,  which speak only as
of the date of this  report.  Readers  are also  urged to  carefully  review and
consider the various  disclosures  made by the Company  which  attempt to advise
interested  parties of the factors which affect the Company's  business detailed
in the Company's  Securities and Exchange Commission filings and those described
from time-to-time in the Company's press releases and other communications.  The
Company  undertakes  no  obligation  to  publicly  release  the  results  of any
revisions to these forward-looking statements that may be made to reflect events
or  circumstances  after  the  date  hereof  or to  reflect  the  occurrence  of
unanticipated events.
                                      9
<PAGE>

                                NEORX CORPORATION
                          (a development stage company)

                           PART II - OTHER INFORMATION

Item 1.  Legal Proceedings

IN RE BLECH SECURITIES LITIGATION.

The Company had been named as an additional  codefendant in an amended complaint
filed in the United States District Court Southern District of New York on March
27, 1995 in a pending  purported class action suit against David Blech, D. Blech
& Co.  and a number  of  other  defendants,  including  eleven  publicly  traded
biotechnology companies.

On June 6, 1996 the Court granted the Company's motion to dismiss with leave for
plaintiffs to replead on or before July 26, 1996. The plaintiffs  filed a second
amended  complaint on July 26, 1996. The second  amended  complaint did not name
NeoRx as a defendant.  NeoRx is not a defendant in the subject suit.  Plaintiffs
have not appealed the Court's June 6, 1996 order of dismissal.

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

The following  matter was voted upon at the 1996 Annual Meeting of  Shareholders
held on May 14, 1996.

AMENDMENT TO 1991 STOCK OPTION PLAN FOR NON-EMPLOYEE DIRECTORS.

The shareholders  amended the 1991 Stock Option Plan for Non-Employee  Directors
by accelerating the vesting of all outstanding options upon a liquidation of the
Company or upon certain mergers, consolidations, reorganizations or transfers of
assets of the Company.  The shareholders  voted 12,121,884 votes in favor of the
amendment, 574,811 votes against and 83,355 votes abstained.

                                       10
<PAGE>


                                NEORX CORPORATION
                          (a development stage company)

Item 6.   Exhibits and Reports on Form 8-K

         (a)  EXHIBITS:
<TABLE>
<CAPTION>
                                                               Sequentially
              Exhibit                                          Numbered
              Number     Exhibit                               Page
              -------    -------                               ----
   
              <S>        <C>                                      <C>
              10.1       Change of Control Agreement              12

              10.2       Form of Key Executive
                         Severance Agreement                      28
</TABLE>

         (b)  REPORTS ON FORM 8-K:
                  Form 8-K dated April 15, 1996 -  notification  of the adoption
                  of a Shareholders' Rights Plan.


                                   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.

                                   NeoRx Corporation
                                   (Registrant)


Date: August 14, 1996              By: \s\ Robert M. Littauer
                                       ----------------------
                                       Robert M. Littauer
                                       Authorized Officer and
                                       Senior Vice President,
                                       Chief Financial Officer and
                                       Treasurer





                                       11

<PAGE>

                                                                    EXHIBIT 10.1

                           CHANGE OF CONTROL AGREEMENT


         This  Change  of  Control  Agreement  (this  "Agreement"),  dated as of
April 10,  1996,  is  entered  into by and  between  NEORX  CORPORATION,  a
Washington corporation (the "Company"), and _________________ (the "Executive").

         The Board of Directors of the Company (the "Board") has determined that
it is in the best interests of the Company and its  shareholders  to ensure that
the Company will have the continued dedication of the Executive, notwithstanding
the  possibility,  threat or  occurrence  of a Change of Control  (as defined in
Section  1 hereof)  of the  Company.  The Board  believes  it is  imperative  to
diminish the inevitable  distraction of the Executive  arising from the personal
uncertainties and risks created by a pending or threatened Change of Control, to
encourage the Executive's full attention and dedication to the Company currently
and in the event of any threatened or pending Change of Control,  and to provide
the Executive  with  reasonable  compensation  and benefit  arrangements  upon a
Change of Control.

         In order to  accomplish  these  objectives,  the Board has  caused  the
Company to enter into this Agreement.

                                 1. DEFINITIONS

1.1      "Change of Control"  shall have the  definition set forth in Appendix A
         hereto, which is hereby incorporated by reference.

1.2      "Change of Control Date" shall mean the first date on which a Change oF
         Control occurs.
          
1.3      "Employment  Period"  shall mean the two (2) year period  commencing on
         the Change of Control Date and ending on the second anniversary of such
         date.

1.4      "Severance  Agreement" shall mean the Key Executive Severance Agreement
         dated as of the date hereof  between the parties,  as it may be amended
         from time to time,  that  provides  for  certain  benefits  related  to
         termination  of the  Executive's  employment  that are  unrelated  to a
         Change of Control.

                                     2. TERM

         The term of this  Agreement  ("Term")  shall be for a period of two (2)
years from the date of this Agreement as first  appearing  above,  at which time
this Agreement shall  terminate  without further action by either the Company or
the Executive;  provided,  however,  that the Term shall automatically renew for
additional  two (2) year periods  unless notice of nonrenewal is given by either
party to the other at least  ninety  (90) days  prior to the end of the  initial
Term or any  renewal  Term,  and  provided  further  that if a Change in Control
occurs during the Term, the Term shall automatically  extend for the duration of
the Employment Period.

<PAGE>

                                  3. EMPLOYMENT

3.1      Employment Period

         During the Employment Period, the Company hereby agrees to continue the
Executive in its employ or in the employ of its  affiliated  companies,  and the
Executive hereby agrees to remain in the employ of the Company or its affiliated
companies,  in  accordance  with the terms  and  provisions  of this  Agreement;
provided,  however,  that either the Company or the  Executive may terminate the
employment relationship subject to the terms of this Agreement.

3.2      Position and Duties

         During the Employment  Period,  the  Executive's  position,  authority,
duties  and  responsibilities  shall be at least  commensurate  in all  material
respects with the most significant of those held,  exercised and assigned at any
time  during the  ninety  (90) day period  immediately  preceding  the Change of
Control Date.

3.3      Location

         During  the  Employment  Period,  the  Executive's  services  shall  be
performed  at the  Company's  headquarters  on the Change of Control Date or any
office that is subsequently designated as the headquarters of the Company and is
less than twenty (20) miles from such location.

3.4      Employment at Will

         The Executive and the Company acknowledge that, except as may otherwise
be provided  under any other  written  agreement  between the  Executive and the
Company,  the  employment  of the  Executive  by the  Company or its  affiliated
companies  is "at will" and may be  terminated  by either the  Executive  or the
Company or its affiliated companies at any time with or without cause. Moreover,
if prior to the Change of Control  Date,  the  Executive's  employment  with the
Company  or its  affiliated  companies  terminates  for  any  reason,  then  the
Executive shall have no further rights under this Agreement;  provided, however,
that the Company may not avoid liability for any termination payments that would
have been required during the Employment  Period pursuant to Section 8 hereof by

                                      -2-
<PAGE>

terminating the Executive prior to the Employment  Period where such termination
is  carried  out in  anticipation  of a  Change  of  Control  and the  principal
motivating purpose is to avoid liability for such termination payments.

[Add the following clause to P. Abrams' agreement:

3.5      Board of Directors

         The  Executive is currently a member of the Board but his  continuation
as a member shall be subject to the will of the Company's  shareholders  and the
Board,  as  provided in the  Company's  Bylaws and  Articles  of  Incorporation.
Removal of the Executive  from, or nonelection of the Executive to, the Board by
the Company's shareholders or the Board, as provided in the Company's Bylaws and
Articles  of  Incorporation,  shall  in no event  be  deemed  a  breach  of this
Agreement by the Company.]

                             4. ATTENTION AND EFFORT

         During the Employment Period, and excluding any periods of vacation and
sick leave to which the Executive is entitled,  the Executive will devote all of
his productive time,  ability,  attention and effort to the business and affairs
of the  Company  and  the  discharge  of the  responsibilities  assigned  to him
hereunder,  and will use his reasonable  best efforts to perform  faithfully and
efficiently such responsibilities. It shall not be a violation of this Agreement
for the  Executive  to (a) serve on  corporate,  civic or  charitable  boards or
committees,  (b) deliver  lectures,  fulfill  speaking  engagements  or teach at
educational  institutions,  (c) manage  personal  investments,  or (d) engage in
activities permitted by the policies of the Company or as specifically permitted
by the Company,  so long as such activities do not significantly  interfere with
the  performance of the  Executive's  responsibilities  in accordance  with this
Agreement.  It is  expressly  understood  and agreed that to the extent any such
activities have been conducted by the Executive prior to the Employment  Period,
the continued  conduct of such activities (or the conduct of activities  similar
in nature and scope thereto)  during the Employment  Period shall not thereafter
be deemed to interfere with the performance of the Executive's  responsibilities
to the Company.

                                 5. COMPENSATION

         As long as the  Executive  remains  employed by the Company  during the
Employment  Period,  the  Company  agrees  to pay or  cause  to be  paid  to the
Executive,  and the  Executive  agrees to accept in  exchange  for the  services
rendered hereunder by him, the following compensation:

      
5.1      Salary

         The  Executive  shall  receive an annual base salary (the  "Annual Base
Salary"),  at least equal to the annual salary  established  by the Board or the
Compensation Committee of the Board (the "Compensation  Committee") or the Chief
Executive  Officer  for the  fiscal  year in which the  Change of  Control  Date
occurs. The Annual Base Salary shall be paid in substantially equal installments
and at the same intervals as the salaries of other executives of the Company are

   
                                   -3-

<PAGE>

paid. The Board or the  Compensation  Committee or the Chief  Executive  Officer
shall  review the Annual Base Salary at least  annually  and shall  determine in
good faith and  consistent  with any  generally  applicable  Company  policy any
increases for future years.

5.2      Bonus

         In addition to the Annual Base Salary,  the Executive shall be awarded,
for each fiscal year ending during the Employment  Period,  an annual bonus (the
"Annual Bonus") in cash at least equal to the average annualized (for any fiscal
year  consisting  of less than  twelve (12) full  months)  bonus paid or payable
(including by reason of any deferral and including the value of any stock awards
and the compensation expense disclosed in the Company's financial statements for
the  grant  of any  stock  options)  to the  Executive  by the  Company  and its
affiliated companies in respect of the three fiscal years immediately  preceding
the fiscal year in which the Change of Control  Date  occurs.  Each Annual Bonus
shall be paid no later than  ninety  (90) days after the end of the fiscal  year
for which the Annual Bonus is awarded, unless the Executive shall elect to defer
the receipt of the Annual Bonus.

                                   6. BENEFITS

6.1      Incentive, Retirement and Welfare Benefit Plans; Vacation

         During the  Employment  Period,  the  Executive  shall be  entitled  to
participate,   subject  to  and  in  accordance  with   applicable   eligibility
requirements,  in such  fringe  benefit  programs  as  shall be  generally  made
available to other  executives of the Company and its affiliated  companies from
time to time during the Employment  Period by action of the Board (or any person
or committee  appointed by the Board to determine  fringe  benefit  programs and
other emoluments),  including,  without  limitation,  paid vacations;  any stock
purchase,  savings or  retirement  plan,  practice,  policy or program;  and all
welfare  benefit  plans,  practices,  policies or programs  (including,  without
limitation,  medical,  prescription,  dental,  disability,  salary  continuance,
employee life, group life,  accidental death and travel accident insurance plans
or programs).

6.2      Expenses

         During the  Employment  Period,  the  Executive  shall be  entitled  to
receive prompt reimbursement for all reasonable  employment expenses incurred by
him in accordance with the policies, practices and procedures of the Company and
its  affiliated  companies in effect for the  executives  of the Company and its
affiliated companies during the Employment Period.

                                 7. TERMINATION

         During  the  Employment  Period,  employment  of the  Executive  may be
terminated as follows, but, in any case, the nondisclosure  provisions set forth
in Section 10 hereof shall  survive the  termination  of this  Agreement and the
termination of the Executive's employment with the Company:

                                      -4-

<PAGE>

7.1      By the Company or the Executive

         At any time during the Employment Period, the Company may terminate the
employment of the Executive  with or without Cause (as defined  below),  and the
Executive may terminate his employment for Good Reason (as defined below) or for
any reason, upon giving the Notice of Termination (as defined below).

7.2      Automatic Termination

         This  Agreement and the  Executive's  employment  during the Employment
Period shall terminate  automatically  upon the death or Total Disability of the
Executive. The term "Total Disability" as used herein shall mean the Executive's
inability (with such accommodation as may be required by law and which places no
undue  burden on the  Company),  as  determined  by a physician  selected by the
Company  and  acceptable  to the  Executive,  to perform the duties set forth in
Section 3.2 hereof for a period or periods  aggregating twelve (12) weeks in any
three  hundred  sixty-five  (365) day period as a result of  physical  or mental
illness,  loss of legal  capacity  or any other  cause  beyond  the  Executive's
control,  unless the  Executive is granted a leave of absence by the Board.  The
Executive  and the  Company  hereby  acknowledge  that the duties  specified  in
Section  3.2  hereof  are  essential  to  the  Executive's   position  and  that
Executive's ability to perform those duties is the essence of this Agreement.

7.3      Notice of Termination

         Any  termination  by  the  Company  or  by  the  Executive  during  the
Employment  Period shall be  communicated  by the Notice of  Termination  to the
other party given in  accordance  with  Section 12 hereof.  The term  "Notice of
Termination"  shall  mean a  written  notice  that (a)  indicates  the  specific
termination  provision  in this  Agreement  relied  upon  and (b) to the  extent
applicable,  sets forth in reasonable detail the facts and circumstances claimed
to  provide a basis for  termination  of the  Executive's  employment  under the
provision so indicated. The failure by the Executive or the Company to set forth
in the Notice of  Termination  any fact or  circumstance  that  contributes to a
showing of Good  Reason or Cause shall not waive any right of the  Executive  or
the Company  hereunder or preclude the  Executive or the Company from  asserting
such fact or circumstance  in enforcing the Executive's or the Company's  rights
hereunder.

7.4      Date of Termination

         During the Employment  Period,  "Date of Termination"  means (a) if the
Executive's  employment  is  terminated  by reason  of death,  at the end of the
calendar month in which the  Executive's  death occurs,  (b) if the  Executive's
employment  is  terminated  by reason of Total  Disability,  immediately  upon a
determination by the Company of the Executive's Total Disability, and (c) in all
   
                                   -5-

<PAGE>

other cases, ten (10) days after the date of personal delivery or mailing of the
Notice of Termination.  The  Executive's  employment and performance of services
will  continue  during such ten (10) day  period;  provided,  however,  that the
Company may, upon notice to the Executive and without  reducing the  Executive's
compensation  during such period,  excuse the  Executive  from any or all of his
duties during such period.

                             8. TERMINATION PAYMENTS

         In the event of termination of the  Executive's  employment  during the
Employment  Period,  all  compensation  and benefits set forth in this Agreement
shall terminate except as specifically provided in this Section 8.

8.1      Termination by the Company Other Than for Cause or by the Executive
         for Good Reason

         If during the Employment Period the Company  terminates the Executive's
employment  other than for Cause or the Executive  terminates his employment for
Good Reason, the Executive shall be entitled to:

                  (a)      receive payment of the following accrued obligations
(the "Accrued Obligations"):

                           (i)      the Annual Base Salary through the Date of
         Termination to the extent not theretofore paid;

                           (ii) the product of (x) the Annual Bonus payable with
         respect to the fiscal year in which the Date of Termination  occurs and
         (y) a  fraction  the  numerator  of that is the  number  of days in the
         current  fiscal  year  through  the  Date  of   Termination,   and  the
         denominator of which is three hundred sixty-five (365); and

                           (iii) any  compensation  previously  deferred  by the
         Executive  (together with accrued interest or earnings thereon, if any)
         and any accrued  vacation pay that would be payable under the Company's
         standard policy, in each case to the extent not theretofore paid;

                  (b) for one year  after the Date of  Termination  or until the
Executive  qualifies for comparable  medical and dental insurance  benefits from
another employer,  whichever occurs first, the Company shall pay the Executive's
premiums for health  insurance  benefit  continuation  for the Executive and his
family members, if applicable, which the Company provides to the Executive under
the provisions of the federal Consolidated Omnibus Budget  Reconciliation Act of
1985, as amended ("COBRA"),  to the extent that the Company would have paid such
premiums had the  Executive  remained  employed by the Company  (such  continued
payment is hereinafter referred to as "COBRA Continuation"); and

                  (c) an  amount  as  severance  pay  equal to one (1) times the
Annual Base Salary for the fiscal year in which the Date of Termination occurs.
   
                                   -6-

<PAGE>

8.2      Termination for Cause or Other Than for Good Reason

         If during the Employment  Period the  Executive's  employment  shall be
terminated  by the  Company  for Cause or by the  Executive  for other than Good
Reason, this Agreement shall terminate without further obligation on the part of
the Company to the  Executive,  other than the  Company's  obligation to pay the
Executive (a) the Annual Base Salary  through the Date of  Termination,  (b) the
amount of any  compensation  previously  deferred by the Executive,  and (c) any
accrued vacation pay that would be payable under the Company's  standard policy,
in each case to the extent theretofore unpaid.

8.3      Expiration of Term

         In the event the  Executive's  employment  is not  terminated  prior to
expiration  of  the  Term,  this  Agreement  shall  terminate   without  further
obligation on the part of the Company to the Executive, other than the Company's
obligation to pay the Executive the product of (a) the Annual Bonus payable with
respect  to the fiscal  year in which the Term  expired  and (b) a fraction  the
numerator of which is the number of days in the current  fiscal year through the
end of the Term and the denominator of which is three hundred sixty-five (365).

8.4      Termination Because of Death or Total Disability

         If  during  the  Employment   Period  the  Executive's   employment  is
terminated  by  reason  of the  Executive's  death  or  Total  Disability,  this
Agreement shall terminate  automatically  without further obligation on the part
of the  Company  to  the  Executive  or his  legal  representatives  under  this
Agreement,  other than the Company's obligation to pay the Executive the Accrued
Obligations  (which shall be paid to the Executive's  estate or beneficiary,  as
applicable  in the  case  of  the  Executive's  death),  and  to  provide  COBRA
Continuation.

8.5      Payment Schedule

         All payments of Accrued  Obligations,  or any portion  thereof  payable
pursuant  to this  Section  8,  shall be made to the  Executive  within ten (10)
working days of the Date of Termination.  Any payments  payable to the Executive
pursuant to Section  8.1(c)  hereof shall be made to the Executive in a lump sum
within ten (10) working days of the Date of Termination.

8.6      Cause

         For  purposes  of this  Agreement,  "Cause"  means  cause  given by the
Executive to the Company and shall include,  without limitation,  the occurrence
of one (1) or more of the following events:

                                      -7-

<PAGE>

                  (a) A clear refusal to carry out any material lawful duties of
the  Executive  or any  directions  of the  Board or  senior  management  of the
Company,  all  reasonably  consistent  with the duties  described in Section 3.2
hereof;

                  (b)  Persistent  failure to carry out any lawful duties of the
Executive  described  in Section  3.2 hereof or any  directions  of the Board or
senior management  reasonably  consistent with the duties herein set forth to be
performed by the Executive, provided, however, that the Executive has been given
reasonable notice and opportunity to correct any such failure;

                  (c)  Violation by the Executive of a state or federal criminal
law  involving  the  commission of a crime against the Company or any other
criminal act involving moral turpitude;

                  (d) Current  abuse by the  Executive of alcohol or  controlled
substances;  deception, fraud, misrepresentation or dishonesty by the Executive;
or any incident materially compromising the Executive's reputation or ability to
represent the Company with investors, customers or the public; or

                  (e) Any other  material  violation  of any  provision  of this
Agreement  by the  Executive,  subject  to the  notice  and  opportunity-to-cure
requirements of Section 11 hereof.

8.7      Good Reason

         For purposes of this Agreement, "Good Reason" means

                  (a) The  assignment to the Executive of any duties  materially
inconsistent   with   the   Executive's   position,    authority,    duties   or
responsibilities  as  contemplated  by Section 3.2 hereof or any other action by
the Company that results in a material  diminution in such position,  authority,
duties  or  responsibilities,   excluding  for  this  purpose  an  isolated  and
inadvertent  action not taken in bad faith and that is  remedied  by the Company
promptly after receipt of notice thereof given by the Executive;

                  (b) Any  failure  by the  Company  to  comply  with any of the
provisions  of  Section 5 or  Section  6  hereof,  other  than an  isolated  and
inadvertent  failure  not taken in bad faith and that is remedied by the Company
promptly after receipt of notice thereof given by the Executive;

                  (c) The Company's requiring the Executive to be based at
any office or location other than that described in Section 3.3 hereof;

                  (d) Any  failure  by the  Company to comply  with and  satisfy
Section 13 hereof; provided,  however, that the Company's successor has received
at least ten (10) days' prior  written  notice from the Company or the Executive
of the requirements of Section 13 hereof; or

   
                                       -8-

<PAGE>

                  (e) Any other  material  violation  of any  provision  of this
Agreement  by  the  Company,  subject  to  the  notice  and  opportunity-to-cure
requirements of Section 11 hereof.

8.8      Excess Parachute Limitation

         If any portion of the payments or benefits for the Executive under this
Agreement,  the Severance  Agreement,  or any other agreement or benefit plan of
the Company  (including  stock option plan) would be characterized as an "excess
parachute  payment" to the Executive under Section 280G of the Internal  Revenue
Code of 1986, as amended (the "Code"), the Executive shall be paid an excise tax
that the  Executive  owes  under  Section  4999 of the Code as a result  of such
characterization,  such excise tax to be paid to the Executive at least ten (10)
days prior to the date that he is obligated to make the excise tax payment.  The
determination  of whether and to what extent any  payments or benefits  would be
"excess  parachute  payments" and the date by which any excise tax shall be due,
shall be determined in writing by recognized tax counsel selected by the Company
and reasonably acceptable to the Executive.

               9. REPRESENTATIONS, WARRANTIES AND OTHER CONDITIONS

         In order to  induce  the  Company  to enter  into this  Agreement,  the
Executive represents and warrants to the Company as follows:

9.1      Health

         The  Executive  is in good  health and knows of no  physical  or mental
disability  that,  with any  accommodation  that may be required by law and that
places no undue burden on the Company,  would  prevent him from  fulfilling  his
obligations hereunder.  The Executive agrees, if the Company requests, to submit
to  reasonable  periodic  medical  examinations  by a  physician  or  physicians
designated by, paid for and arranged by the Company.  The Executive  agrees that
the examination's medical report shall be provided to the Company.

9.2      No Violation of Other Agreements

         The Executive represents that neither the execution nor the performance
of this  Agreement by the Executive will violate or conflict in any way with any
other agreement by which the Executive may be bound.

                     10. NONDISCLOSURE; RETURN OF MATERIALS

10.1     Nondisclosure

         Except as required by his  employment  with the Company,  the Executive
will not, at any time during the term of  employment  by the Company,  or at any
time thereafter, directly, indirectly or otherwise, use, communicate,  disclose,

                                      -9-

<PAGE>

disseminate,  lecture  upon or publish  articles  relating to any  confidential,
proprietary or trade secret information without the prior written consent of the
Company.  The  Executive  understands  that the Company  will be relying on this
Agreement in continuing the  Executive's  employment,  paying him  compensation,
granting him any promotions or raises,  or entrusting  him with any  information
that helps the Company compete with others.

10.2     Return of Materials

         All documents,  records, notebooks, notes, memoranda, drawings or other
documents  made or compiled by the Executive at any time, or in his  possession,
including any and all copies  thereof,  shall be the property of the Company and
shall be held by the  Executive  in trust  and  solely  for the  benefit  of the
Company, and shall be delivered to the Company by the Executive upon termination
of employment or at any other time upon request by the Company.

                          11. NOTICE AND CURE OF BREACH

         Whenever a breach of this  Agreement  by either party is relied upon as
justification  for any action taken by the other party pursuant to any provision
of this Agreement, other than clause (a), (b), (c) or (d) of Section 8.6 hereof,
before such action is taken,  the party  asserting the breach of this  Agreement
shall give the other party at least  twenty (20) days' prior  written  notice of
the  existence  and the  nature of such  breach  before  taking  further  action
hereunder and shall give the party  purportedly  in breach of this Agreement the
opportunity to correct such breach during the twenty (20) day period.

                               12. FORM OF NOTICE

         Every notice  required by the terms of this Agreement shall be given in
writing by serving the same upon the party to whom it was  addressed  personally
or by registered or certified mail, return receipt requested, at the address set
forth below or at such other  address as may  hereafter be  designated by notice
given in compliance with the terms hereof:

         If to the Executive:     _________________
                                  _________________
                                  _________________      
                                                    
         If to the Company:       NeoRx Corporation
                                  410 West Harrison
                                  Seattle, Washington 98119
                                  Attn:  President 
 
         With a copy to:          Perkins Coie
                                  1201 Third Avenue, 40th Floor
                                  Seattle, Washington 98101-3099
                                  Attn: James R. Lisbakken
  
                                    -10-

<PAGE>

Except as set forth in Section  7.4 hereof,  if notice is mailed,  such notice
shall be effective upon mailing.

                              13. ASSIGNMENT

         This Agreement is personal to the Executive and shall not be assignable
by the Executive.

         The Company shall assign to and require any successor  (whether  direct
or  indirect,  by  purchase,  merger,  consolidation  or  otherwise)  to  all or
substantially  all the business and/or assets of the Company to assume expressly
and agree to perform  this  Agreement  in the same manner and to the same extent
that the Company would be required to perform it if no such succession had taken
place. As used in this Agreement, "Company" shall mean NeoRx Corporation and any
successor to its business  and/or assets as aforesaid that assumes and agrees to
perform this  Agreement by  operation  of law, or  otherwise.  All the terms and
provisions of this  Agreement  shall be binding upon and inure to the benefit of
and be  enforceable by the parties  hereto and their  respective  successors and
permitted assigns.

                                   14. WAIVERS

         No delay or failure by any party hereto in  exercising,  protecting  or
enforcing any of its rights,  titles,  interests or remedies  hereunder,  and no
course of dealing or performance with respect thereto, shall constitute a waiver
thereof.  The express waiver by a party hereto of any right, title,  interest or
remedy in a particular  instance or  circumstance  shall not constitute a waiver
thereof in any other instance or circumstance.  All rights and remedies shall be
cumulative and not exclusive of any other rights or remedies.

                            15. AMENDMENTS IN WRITING

         No amendment,  modification,  waiver,  termination  or discharge of any
provision of this  Agreement,  or consent to any  departure  therefrom by either
party  hereto,  shall in any  event be  effective  unless  the same  shall be in
writing,  specifically  identifying this Agreement and the provision intended to
be amended, modified, waived, terminated or discharged and signed by the Company
and the Executive, and each such amendment, modification, waiver, termination or
discharge shall be effective only in the specific  instance and for the specific
purpose  for which  given.  No  provision  of this  Agreement  shall be  varied,
contradicted  or  explained  by  any  oral  agreement,   course  of  dealing  or
performance  or any other  matter not set forth in an  agreement  in writing and
signed by the Company and the Executive.

                               16. APPLICABLE LAW

         This  Agreement  shall  in  all  respects,  including  all  matters  of
construction,  validity  and  performance,  be governed  by, and  construed  and
enforced in accordance with, the laws of the State of Washington, without regard
to any rules governing conflicts of laws.

                                      -11-
<PAGE>

                        17. ARBITRATION; ATTORNEYS' FEES

         Except in connection with enforcing Section 10 hereof,  for which legal
and  equitable  remedies  may be sought in a court of law,  any dispute  arising
under this Agreement shall be subject to arbitration. The arbitration proceeding
shall be conducted in accordance  with the Commercial  Arbitration  Rules of the
American Arbitration Association (the "AAA Rules") then in effect,  conducted by
one arbitrator  either  mutually  agreed upon or selected in accordance with the
AAA Rules. The arbitration shall be conducted in King County, Washington,  under
the jurisdiction of the Seattle office of the American Arbitration  Association.
The  arbitrator  shall have authority only to interpret and apply the provisions
of this  Agreement,  and shall have no  authority  to add to,  subtract  from or
otherwise modify the terms of this Agreement. Any demand for arbitration must be
made within sixty (60) days of the  event(s)  giving rise to the claim that this
Agreement  has been  breached.  The  arbitrator's  decision  shall be final  and
binding, and each party agrees to be bound to by the arbitrator's award, subject
only to an  appeal  therefrom  in  accordance  with  the  laws of the  State  of
Washington.  Either party may obtain judgment upon the arbitrator's award in the
Superior Court of King, County, Washington.

         If it  becomes  necessary  to pursue or  defend  any legal  proceeding,
whether in  arbitration  or court,  in order to resolve a dispute  arising under
this Agreement, the prevailing party in any such proceeding shall be entitled to
recover its reasonable costs and attorneys' fees.

                                18. SEVERABILITY

         If any provision of this  Agreement  shall be held invalid,  illegal or
unenforceable  in  any  jurisdiction,   for  any  reason,   including,   without
limitation, the duration of such provision, its geographical scope or the extent
of the  activities  prohibited  or  required  by it,  then,  to the full  extent
permitted by law, (a) all other provisions hereof shall remain in full force and
effect in such  jurisdiction and shall be liberally  construed in order to carry
out the  intent of the  parties  hereto as nearly as may be  possible,  (b) such
invalidity,  illegality  or  unenforceability  shall not  affect  the  validity,
legality or enforceability  of any other provision hereof,  and (c) any court or
arbitrator  having  jurisdiction  thereover  shall have the power to reform such
provision to the extent  necessary for such  provision to be  enforceable  under
applicable law.

                              19. ENTIRE AGREEMENT

         Except as described in Section 22 hereof,  this  Agreement  constitutes
the entire  agreement  between the Company and the Executive with respect to the
subject  matter  hereof,  and all  prior  or  contemporaneous  oral  or  written
communications,  understandings  or  agreements  between  the  Company  and  the
Executive  with  respect  to such  subject  matter  are  hereby  superseded  and
nullified  in their  entireties,  except that the  Proprietary  Information  and
Invention Agreement between the Company and the Executive shall continue in full
force and effect to the extent not superseded by Section 10 hereof.

                                      -12-
<PAGE>
                                 20. WITHHOLDING

         The Company may withhold from any amounts  payable under this Agreement
such federal,  state or local taxes as shall be required to be withheld pursuant
to any applicable law or regulation.

                                21. COUNTERPARTS

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

                    22. COORDINATION WITH SEVERANCE AGREEMENT

         The   Severance   Agreement   that  the  parties  are   entering   into
contemporaneously  with this  Agreement  provides for certain forms of severance
and benefit payments in the event of termination of the Executive's  employment.
This  Agreement  is in  addition  to  the  Severance  Agreement  and  in no  way
supersedes or nullifies the Severance  Agreement.  Nevertheless,  it is possible
that  termination  of  employment  by the Company or by the  Executive  may fall
within  the  scope  of both  agreements.  In such  event,  payments  made to the
Executive  under Section 8.1 hereof shall be  coordinated  with payments made to
the Executive under Section 5.1 of the Severance Agreement as follows:

                  (a) Accrued Obligations under this  Agreement need not be paid
if paid under the Severance Agreement;

                  (b) COBRA  Continuation under this Agreement shall need not be
provided to the extent COBRA  Continuation  is provided  under Section 5.1(c) of
the Severance Agreement; and

                  (c) The severance payment required under Section 8.1(c) hereof
shall be paid in addition to any severance payment required under Section 5.1(c)
of the Severance Agreement.

                                      -13-

<PAGE>

         IN WITNESS  WHEREOF,  the parties  have  executed and entered into this
Agreement effective on the date first set forth above.

                                        NEORX CORPORATION
 

                                        By_______________________________
                                          Its____________________________


                                         EXECUTIVE
                                       
                                         ________________________________     
                                              ______________________


                                      -14-

<PAGE>

                                   APPENDIX A


         For purposes of this Agreement, a "Change of Control" shall mean:

         (a) A "Board Change" that, for purposes of this  Agreement,  shall have
occurred if a majority  (excluding  vacant  seats) of the seats on the Board are
occupied by  individuals  who were  neither (i)  nominated  by a majority of the
Incumbent Directors nor (ii) appointed by directors so nominated.  An "Incumbent
Director"  is a member of the  Board  who has been  either  (i)  nominated  by a
majority of the  directors  of the Company  then in office or (ii)  appointed by
directors so nominated,  but excluding,  for this purpose,  any such  individual
whose  initial  assumption  of office  occurs as a result of either an actual or
threatened election contest (as such terms are used in Rule 14a-11 of Regulation
14A  promulgated  under the  Securities  Exchange  Act of 1934,  as amended (the
"Exchange  Act")) or other  actual or  threatened  solicitation  of  proxies  or
consents  by or on behalf of a Person (as  hereinafter  defined)  other than the
Board; or

         (b) The  acquisition  by any  individual,  entity or group  (within the
meaning of Section  13(d)(3) or 14(d)(2) of the  Exchange  Act) (a  "Person") of
beneficial  ownership  (within the meaning of Rule 13d-3  promulgated  under the
Exchange  Act) of (i)  twenty  percent  (20%)  or more of  either  (A) the  then
outstanding  shares of Common  Stock of the Company  (the  "Outstanding  Company
Common Stock") or (B) the combined voting power of the then  outstanding  voting
securities  of the  Company  entitled  to  vote  generally  in the  election  of
directors (the "Outstanding Company Voting  Securities"),  in the case of either
(A) or (B) of this clause (i), which acquisition is not approved in advance by a
majority of the Incumbent Directors,  or (ii) thirty-three percent (33%) or more
of  either  (A) the  Outstanding  Company  Common  Stock or (B) the  Outstanding
Company Voting Securities, in the case of either (A) or (B) of this clause (ii),
which  acquisition  is  approved  in  advance  by a  majority  of the  Incumbent
Directors;   provided,  however,  that  the  following  acquisitions  shall  not
constitute a Change of Control:  (x) any  acquisition  by the  Company,  (y) any
acquisition  by any  employee  benefit  plan (or  related  trust)  sponsored  or
maintained by the Company or any corporation  controlled by the Company,  or (z)
any  acquisition  by any  corporation  pursuant to a  reorganization,  merger or
consolidation,  if, following such reorganization,  merger or consolidation, the
conditions  described in clauses (i), (ii) and (iii) of  subsection  (c) of this
Appendix A are satisfied; or

         (c) Approval by the  shareholders  of the Company of a  reorganization,
merger or  consolidation,  in each  case,  unless,  immediately  following  such
reorganization,  merger or consolidation,  (i) more than sixty percent (60%) of,
respectively,  the then  outstanding  shares of common stock of the  corporation
resulting from such  reorganization,  merger or  consolidation  and the combined
voting  power of the then  outstanding  voting  securities  of such  corporation
entitled to vote  generally in the  election of  directors is then  beneficially
owned,  directly or indirectly,  by all or substantially all the individuals and

                                      -15-

<PAGE>

entities  who were  the  beneficial  owners,  respectively,  of the  Outstanding
Company Common Stock and the Outstanding  Company Voting Securities  immediately
prior to such reorganization,  merger or consolidation in substantially the same
proportion as their ownership  immediately prior to such reorganization,  merger
or  consolidation  of the  Outstanding  Company Common Stock and the Outstanding
Company  Voting  Securities,  as the case may be, (ii) no Person  (excluding the
Company,  any employee  benefit  plan (or related  trust) of the Company or such
corporation resulting from such reorganization,  merger or consolidation and any
Person beneficially owning, immediately prior to such reorganization,  merger or
consolidation, directly or indirectly, thirty-three percent (33%) or more of the
Outstanding  Company Common Stock or the Outstanding  Company Voting Securities,
as the case may be)  beneficially  owns,  directly or  indirectly,  thirty-three
percent (33%) or more of,  respectively,  the then outstanding  shares of common
stock  of  the  corporation  resulting  from  such  reorganization,   merger  or
consolidation  or the  combined  voting  power  of the then  outstanding  voting
securities  of such  corporation  entitled to vote  generally in the election of
directors,  and  (iii)  at  least a  majority  of the  members  of the  board of
directors  of the  corporation  resulting  from such  reorganization,  merger or
consolidation  were the Incumbent  Directors at the time of the execution of the
initial agreement providing for such reorganization, merger or consolidation; or

         (d)  Approval  by the  shareholders  of the  Company  of (i) a complete
liquidation or dissolution of the Company or (ii) the sale or other  disposition
of  all or  substantially  all  the  assets  of the  Company,  other  than  to a
corporation  with  respect  to which  immediately  following  such sale or other
disposition,  (A) more  than  sixty  percent  (60%) of,  respectively,  the then
outstanding  shares of common stock of such  corporation and the combined voting
power of the then outstanding voting securities of such corporation  entitled to
vote generally in the election of directors is then beneficially owned, directly
or indirectly, by all or substantially all the individuals and entities who were
the beneficial owners, respectively, of the Outstanding Company Common Stock and
the  Outstanding  Company Voting  Securities  immediately  prior to such sale or
other  disposition  in  substantially  the same  proportion as their  ownership,
immediately prior to such sale or other disposition,  of the Outstanding Company
Common Stock and the Outstanding Company Voting Securities,  as the case may be,
(B) no Person  (excluding  the Company,  any  employee  benefit plan (or related
trust) of the Company or such  corporation and any Person  beneficially  owning,
immediately  prior to such sale or other  disposition,  directly or  indirectly,
thirty-three  percent (33%) or more of the  Outstanding  Company Common Stock or
the  Outstanding  Company Voting  Securities,  as the case may be)  beneficially
owns,   directly  or  indirectly,   thirty-three   percent  (33%)  or  more  of,
respectively,  the then  outstanding  shares of common stock of such corporation
and the combined voting power of the then outstanding  voting securities of such
corporation entitled to vote generally in the election of directors,  and (C) at
least a majority of the members of the board of  directors  of such  corporation
were  approved  by a  majority  of the  Incumbent  Directors  at the time of the
execution  of the initial  agreement or action of the Board  providing  for such
sale or other disposition of the Company's assets.

                                      -16-

<PAGE>

                                                                    EXHIBIT 10.2

                                NEORX CORPORATION
                        KEY EXECUTIVE SEVERANCE AGREEMENT


         This Key Executive Severance  Agreement (this  "Agreement"),  dated and
effective as of April 10, 1996, is between NEORX CORPORATION, a Washington
corporation (the "Company"), and __________________ (the "Executive").

         The Board of Directors of the Company (the "Board") has determined that
it is in the best interests of the Company and its  shareholders  to ensure that
the Company will have the continued dedication of the Executive, notwithstanding
the fact that the  Executive  does not have any form of  traditional  employment
contract or other assurance of job security. The Board believes it is imperative
to  diminish  any  distraction  of  the  Executive  arising  from  the  personal
uncertainty  and  insecurity  that arises in the absence of any assurance of job
security by providing the Executive  with  reasonable  compensation  and benefit
arrangements  in the event of termination of the  Executive's  employment by the
Company under certain defined circumstances.

         In order to  accomplish  these  objectives,  the Board has  caused  the
Company to enter into this Agreement.

                                     1. TERM

         The term of this  Agreement  (the "Term")  shall be for a period of two
(2) years from the date of this Agreement as first appearing; provided, however,
that the Term shall  automatically  renew for  additional  two (2) year periods,
unless notice of nonrenewal is given by either party to the other party at least
ninety (90) days prior to the end of the initial  Term or any renewal  Term,  at
the end of which Term this Agreement shall  terminate  without further action by
either the Company or the Executive.

                                  2. EMPLOYMENT

         The Executive and the Company acknowledge that, except as may otherwise
be provided  under any other  written  agreement  between the  Executive and the
Company,  the employment of the Executive by the Company or by any affiliated or
successor  company is "at will" and may be terminated by either the Executive or
the  Company or its  affiliated  companies  at any time with or  without  cause,
subject to the termination payments prescribed herein.


                             3. ATTENTION AND EFFORT

         During any period of time that the  Executive  remains in the employ of
the Company,  and  excluding any periods of vacation and sick leave to which the
Executive  is  entitled,  the  Executive  will devote all his  productive  time,
ability, attention and effort to the business and affairs of the Company and the

<PAGE>

discharge of the  responsibilities  assigned to him hereunder,  and will seek to
perform  faithfully and  efficiently  such  responsibilities.  It shall not be a
violation of this  Agreement for the Executive to (a) serve on corporate,  civic
or charitable  boards or  committees,  (b) deliver  lectures,  fulfill  speaking
engagements  or  teach  at  educational   institutions,   (c)  manage   personal
investments,  or (d)  engage in  activities  permitted  by the  policies  of the
Company or as specifically  permitted by the Company, so long as such activities
do  not  significantly   interfere  with  the  performance  of  the  Executive's
responsibilities in accordance with this Agreement.  It is expressly  understood
and agreed that to the extent any such  activities  have been  conducted  by the
Executive  prior to the Term, the continued  conduct of such  activities (or the
conduct of activities similar in nature and scope thereto) during the Term shall
not  thereafter be deemed to interfere with the  performance of the  Executive's
responsibilities to the Company.

                                 4. TERMINATION

         During the Term,  employment  of the  Executive  may be  terminated  as
follows,  but, in any case, the nondisclosure  provisions set forth in Section 7
hereof shall survive the  termination of this  Agreement and the  termination of
the Executive's employment with the Company:

4.1      By the Company or the Executive

         At any time during the Term,  the Company may terminate the  employment
of the Executive with or without Cause (as defined below), and the Executive may
terminate his  employment  for Good Reason (as defined below) or for any reason,
upon giving Notice of Termination (as defined below).

4.2      Automatic Termination

         This  Agreement  and  the   Executive's   employment   shall  terminate
automatically  upon the death or Total  Disability  of the  Executive.  The term
"Total  Disability" as used herein shall mean the  Executive's  inability  (with
such accommodation as may be required by law and which places no undue burden on
the  Company),  as  determined  by a  physician  selected  by  the  Company  and
acceptable to the Executive,  to perform the Executive's  essential duties for a
period or periods  aggregating twelve (12) weeks in any three hundred sixty-five
(365) day  period  as a result of  physical  or  mental  illness,  loss of legal
capacity or any other cause beyond the Executive's control, unless the Executive
is granted a leave of absence by the Board.

4.3      Notice of Termination

         Any  termination  by the  Company or by the  Executive  during the Term
shall be  communicated  by Notice of  Termination  to the other  party  given in
accordance with Section 9 hereof.  The term "Notice of Termination" shall mean a
written  notice that (a)  indicates the specific  termination  provision in this
Agreement relied upon and (b) to the extent applicable, sets forth in reasonable
detail the facts and circumstances claimed to provide a basis for termination of
the Executive's employment under the provision so indicated.  The failure by the

                                      -2-

<PAGE>

Executive or the Company to set forth in the Notice of  Termination  any fact or
circumstance  that  contributes  to a showing of Good  Reason or Cause shall not
waive any right of the  Executive  or the  Company  hereunder  or  preclude  the
Executive or the Company from asserting such fact or  circumstance  in enforcing
the Executive's or the Company's rights hereunder.

4.4      Date of Termination

         "Date  of  Termination"  means  (a) if the  Executive's  employment  is
terminated by reason of death,  the last day of the calendar  month in which the
Executive's  death occurs,  (b) if the  Executive's  employment is terminated by
reason of Total  Disability,  immediately upon a determination by the Company of
the  Executive's  Total  Disability,  and (c) in all other cases,  ten (10) days
after the date of personal delivery or mailing of the Notice of Termination. The
Executive's employment and performance of services will continue during such ten
(10) day period;  provided,  however,  that the Company may,  upon notice to the
Executive and without reducing the Executive's  compensation during such period,
excuse the Executive from any or all of his duties during such period.

                             5. TERMINATION PAYMENTS

         In the event of termination of the  Executive's  employment  during the
Term, all  compensation  and benefits shall  terminate,  except as  specifically
provided in this Section 5.

5.1      Termination by the Company Other Than for Cause or by the Executive for
         Good Reason

         If during the Term the Company  terminates the  Executive's  employment
other than for Cause or the Executive terminates his employment for Good Reason,
the Executive shall be entitled to:

                  (a)      receive payment of the following accrued obligations
 (the "Accrued Obligations"):

                           (i)      the Executive's then current annual base
         salary through the Date of Termination to the extent not theretofore
         paid and
                           (ii)  any  compensation  previously  deferred  by the
         Executive  (together with accrued interest or earnings thereon, if any)
         and any accrued  vacation pay that would be payable under the Company's
         standard policy, in each case to the extent not theretofore paid;

                  (b) for one year  after the Date of  Termination  or until the
Executive  qualifies for comparable  medical and dental insurance  benefits from
another employer,  whichever occurs first, the Company shall pay the Executive's
premiums for health  insurance  benefit  continuation  for the Executive and his

                                      -3-

<PAGE>

family members, if applicable,  that the Company provides to the Executive under
the provisions of the federal Consolidated Omnibus Budget  Reconciliation Act of
1985, as amended ("COBRA"),  to the extent that the Company would have paid such
premiums had the  Executive  remained  employed by the Company  (such  continued
payment is hereinafter referred to as "COBRA Continuation"); and

                  (c) an amount as severance pay equal to the  Executive's  then
current  annual base salary for the fiscal year in which the Date of Termination
occurs,  subject to payment and potential  reduction as set forth in Section 5.5
hereof.

5.2      Termination for Cause or Other Than for Good Reason

         If during the Term the  Executive's  employment  shall be terminated by
the  Company  for Cause or by the  Executive  for other than Good  Reason,  this
Agreement shall terminate without further  obligation on the part of the Company
to the Executive,  other than the Company's  obligation to pay the Executive the
Accrued Obligations to the extent theretofore unpaid.

5.3      Expiration of Term

         In the event the  Executive's  employment  is not  terminated  prior to
expiration  of  the  Term,  this  Agreement  shall  terminate   without  further
obligation on the part of the Company to the Executive.

5.4      Termination Because of Death or Total Disability

         If the Executive's  employment is terminated  during the Term by reason
of the  Executive's  death or Total  Disability,  this Agreement shall terminate
automatically  without  further  obligation  on the part of the  Company  to the
Executive  or his legal  representatives  under this  Agreement,  other than the
Company's  obligation to pay the Executive the Accrued  Obligations (which shall
be paid to the Executive's  estate or beneficiary,  as applicable in the case of
the Executive's death) and to provide COBRA Continuation.

5.5      Payment Schedule and Offset for Other Earnings

         All payments of Accrued  Obligations,  or any portion  thereof  payable
pursuant  to this  Section  5,  shall be made to the  Executive  within ten (10)
working days of the Date of Termination.  Any severance  payments payable to the
Executive  pursuant to Section 5.1(c) shall be made to the Executive in the form
of salary  continuation,  payable at normal payroll intervals during the one (1)
year severance period,  and subject to offset for other earnings received by the
Executive as follows:

                  (a) The Executive shall have no affirmative duty to seek other
employment or otherwise mitigate lost earnings during the one (1) year severance
period;

                  (b) The Executive  shall  disclose to the Company any earnings
received  (or that the  Executive  had the right to  receive)  from  employment,
consulting or  performance of other  personal  services  during the one (1) year
severance period, and the source(s) of such earnings;

                                      -4-
<PAGE>

                  (c) The  Company,  in each  payroll  period  that a  severance
payment is due, shall have the right to offset on a dollar-for-dollar  basis all
such  earnings that the  Executive  received or had the right to receive  during
that payroll period; and

                  (d) In the event the  Company  disputes  whether  Good  Reason
existed for the  Executive  to terminate  his  employment  for Good Reason,  the
Company  shall pay salary  continuation  as provided  above in this  Section 5.5
until the earliest of (i)  settlement  by the  parties,  (ii)  determination  by
arbitration in accordance with Section 14 hereof that Good Reason did not exist,
and (iii)  completion  of the payments  required by this Section 5.5 and Section
5.1(c) hereof. If, pursuant to Section 14 hereof, an arbitrator  determines that
Good  Reason  did not  exist,  the  arbitrator  shall also  decide  whether  the
Executive  had a reasonable,  good-faith  basis for claiming that there was Good
Reason to  terminate.  If the  arbitrator  determines  that there was not such a
basis,  the  Executive  shall be obligated to repay  promptly to the Company the
salary continuation payments; if the arbitrator determines that there was such a
basis, the Executive shall not be obligated to repay the salary continuation.

5.6      Cause

         For  purposes  of this  Agreement,  "Cause"  means  cause  given by the
Executive to the Company and shall include,  without limitation,  the occurrence
of one or more of the following events:

                  (a) A clear refusal to carry out any material lawful duties of
the Executive or any directions of the Board or senior management of the Company
reasonably consistent with those duties;

                  (b)  Persistent  failure to carry out any lawful duties of the
Executive  or any  directions  of the  Board  or  senior  management  reasonably
consistent  with those duties;  provided,  however,  that the Executive has been
given reasonable notice and opportunity to correct any such failure;

                  (c)      Violation by the Executive of a state or federal 
criminal law involving the commission of a crime against the Company or any
other criminal act involving moral turpitude;

                  (d) Current  abuse by the  Executive of alcohol or  controlled
substances;  deception, fraud, misrepresentation or dishonesty by the Executive;
or any incident materially compromising the Executive's reputation or ability to
represent the Company with investors, customers or the public; or

                  (e) Any other  material  violation  of any  provision  of this
Agreement  by the  Executive,  subject  to the notice  and  opportunity  to cure
requirements of Section 8 hereof.

                                      -5-

<PAGE>

5.7      Good Reason

         For purposes of this Agreement, "Good Reason" means

                  (a) Reduction of the Executive's annual base salary to a level
below  the  level in effect  on the date of this  Agreement,  regardless  of any
change in the Executive's duties or responsibilities;

                  (b) The  assignment to the Executive of any duties  materially
inconsistent   with   the   Executive's   position,    authority,    duties   or
responsibilities  or any other  action by the  Company the results in a material
diminution in such position,  authority,  duties or responsibilities,  excluding
for this purpose an isolated and  inadvertent  action not taken in bad faith and
that is remedied by the Company  promptly  after receipt of notice thereof given
by the Executive;

                  (c) The  Company's  requiring the Executive to be based at any
office or  location  more than  twenty  (20)  miles from the  Company's  current
location in Seattle, Washington;

                  (d) Any  failure  by the  Company to comply  with and  satisfy
Section 10 hereof, provided,  however, that the Company's successor has received
at least ten (10) days' prior  written  notice from the Company or the Executive
of the requirements of Section 10 hereof; or

                  (e) Any other  material  violation  of any  provision  of this
Agreement  by the  Company,  subject  to the  notice  and  opportunity  to  cure
requirements of Section 8 hereof.

               6. REPRESENTATIONS, WARRANTIES AND OTHER CONDITIONS

         In order to  induce  the  Company  to enter  into this  Agreement,  the
Executive represents and warrants to the Company as follows:

6.1      Health

         The  Executive  is in good  health and knows of no  physical  or mental
disability  that,  with any  accommodation  that may be required by law and that
places no undue burden on the Company,  would  prevent him from  fulfilling  his
obligations hereunder.  The Executive agrees, if the Company requests, to submit
to  reasonable  periodic  medical  examinations  by a  physician  or  physicians
designated,  paid for and arranged by the Company. The Executive agrees that the
examination's medical report shall be provided to the Company.

                                      -6-


<PAGE>

6.2      No Violation of Other Agreements

         The Executive represents that neither the execution nor the performance
of this  Agreement by the Executive will violate or conflict in any way with any
other agreement by which the Executive may be bound.

                      7. NONDISCLOSURE; RETURN OF MATERIALS

7.1      Nondisclosure

         Except as required by his  employment  with the Company,  the Executive
will not, at any time during the term of  employment  by the Company,  or at any
time thereafter, directly, indirectly or otherwise, use, communicate,  disclose,
disseminate,  lecture  upon or publish  articles  relating to any  confidential,
proprietary or trade secret information without the prior written consent of the
Company.  The  Executive  understands  that the Company  will be relying on this
covenant in continuing  the  Executive's  employment,  paying him  compensation,
granting him any promotions or raises,  or entrusting  him with any  information
that helps the Company compete with others.

7.2      Return of Materials

         All documents,  records, notebooks, notes, memoranda, drawings or other
documents  made or compiled by the  Executive at any time while  employed by the
Company,  or in his possession,  including any and all copies thereof,  shall be
the  property  of the Company  and shall be held by the  Executive  in trust and
solely for the benefit of the Company,  and shall be delivered to the Company by
the Executive  upon  termination of employment or at any other time upon request
by the Company.

                          8. NOTICE AND CURE OF BREACH

         Whenever a breach of this  Agreement  by either party is relied upon as
justification  for any action taken by the other party pursuant to any provision
of this Agreement, other than clause (a), (b), (c) or (d) of Section 5.6 hereof,
before such action is taken,  the party  asserting the breach of this  Agreement
shall give the other party at least  twenty (20) days' prior  written  notice of
the  existence  and the  nature of such  breach  before  taking  further  action
hereunder and shall give the party  purportedly  in breach of this Agreement the
opportunity to correct such breach during the twenty (20) day period.

                                9. FORM OF NOTICE

         Every notice  required by the terms of this Agreement shall be given in
writing by serving the same upon the party to whom it was  addressed  personally
or by registered or certified mail, return receipt requested, at the address set
forth below or at such other  address as may  hereafter be  designated by notice
given in compliance with the terms hereof:

                                      -7-
<PAGE>

         If to the Executive:                   _____________________
                                                _____________________
                                                _____________________ 
                                                 

         If to the Company:                     NeoRx Corporation
                                                410 West Harrison
                                                Seattle, Washington 98119
                                                Attn:  President

         With a copy to:                        Perkins Coie
                                                1201 Third Avenue, 40th Floor
                                                Seattle, Washington 98101-3099
                                                Attn: James R. Lisbakken

or such other address as shall be provided in accordance  with the terms hereof.
Except as set forth in Section  4.4  hereof,  if notice is mailed,  such  notice
shall be effective upon mailing.

                                 10. ASSIGNMENT

         This Agreement is personal to the Executive and shall not be assignable
by the Executive.

         The Company shall assign to and require any successor  (whether  direct
or  indirect,  by  purchase,  merger,  consolidation  or  otherwise)  to  all or
substantially  all the business and/or assets of the Company to assume expressly
and agree to perform  this  Agreement  in the same manner and to the same extent
that the Company would be required to perform it if no such succession had taken
place. As used in this Agreement, the "Company" shall mean NeoRx Corporation and
any affiliated  company or successor to its business  and/or assets as aforesaid
that assumes and agrees to perform this Agreement by contract,  operation of law
or otherwise;  and as long as such successor  assumes and agrees to perform this
Agreement,  the termination of the Executive's employment by one such entity and
the  immediate  hiring and  continuation  of the  Executive's  employment by the
succeeding entity shall not be deemed to constitute a termination or trigger any
severance obligation under this Agreement.  All the terms and provisions of this
Agreement  shall be binding upon and inure to the benefit of and be  enforceable
by the parties hereto and their respective successors and permitted assigns.

                                   11. WAIVERS

         No delay or failure by any party hereto in  exercising,  protecting  or
enforcing any of its rights,  titles,  interests or remedies  hereunder,  and no
course of dealing or performance with respect thereto, shall constitute a waiver
thereof.  The express waiver by a party hereto of any right, title,  interest or
remedy in a particular  instance or  circumstance  shall not constitute a waiver
thereof in any other instance or circumstance.  All rights and remedies shall be
cumulative and not exclusive of any other rights or remedies.
  
                                   -8-
<PAGE>

                            12. AMENDMENTS IN WRITING

         No amendment,  modification,  waiver,  termination  or discharge of any
provision of this  Agreement,  or consent to any  departure  therefrom by either
party  hereto,  shall in any  event be  effective  unless  the same  shall be in
writing,  specifically  identifying this Agreement and the provision intended to
be amended, modified, waived, terminated or discharged and signed by the Company
and the Executive, and each such amendment, modification, waiver, termination or
discharge shall be effective only in the specific  instance and for the specific
purpose  for which  given.  No  provision  of this  Agreement  shall be  varied,
contradicted  or  explained  by  any  oral  agreement,   course  of  dealing  or
performance  or any other  matter not set forth in an  agreement  in writing and
signed by the Company and the Executive.

                               13. APPLICABLE LAW

         This  Agreement  shall  in  all  respects,  including  all  matters  of
construction,  validity  and  performance,  be governed  by, and  construed  and
enforced in accordance with, the laws of the State of Washington, without regard
to any rules governing conflicts of laws.

                        14. ARBITRATION; ATTORNEYS' FEES

         Except in connection with enforcing  Section 7 hereof,  for which legal
and  equitable  remedies  may be sought in a court of law,  any dispute  arising
under this Agreement shall be subject to arbitration. The arbitration proceeding
shall be conducted in accordance  with the Commercial  Arbitration  Rules of the
American Arbitration Association (the "AAA Rules") then in effect,  conducted by
one (1) arbitrator  either  mutually  agreed upon or selected in accordance with
the AAA Rules.  The arbitration  shall be conducted in King County,  Washington,
under  the  jurisdiction  of the  Seattle  office  of the  American  Arbitration
Association. The arbitrator shall have authority only to interpret and apply the
provisions of this  Agreement,  and shall have no authority to add to,  subtract
from or otherwise modify the terms of this Agreement. Any demand for arbitration
must be made  within  sixty (60) days of the  event(s)  giving rise to the claim
that this Agreement has been breached.  The arbitrator's decision shall be final
and  binding,  and each  party  agrees  to be bound by the  arbitrator's  award,
subject only to an appeal  therefrom in accordance with the laws of the State of
Washington.  Either party may obtain judgment upon the arbitrator's award in the
Superior Court of King County, Washington.

         If it  becomes  necessary  to pursue or  defend  any legal  proceeding,
whether in  arbitration  or court,  in order to resolve a dispute  arising under
this Agreement, the prevailing party in any such proceeding shall be entitled to
recover its reasonable costs and attorneys' fees.

                                15. SEVERABILITY

         If any provision of this  Agreement  shall be held invalid,  illegal or
unenforceable  in  any  jurisdiction,   for  any  reason,   including,   without

                                      -9-

<PAGE>

limitation, the duration of such provision, its geographical scope or the extent
of the  activities  prohibited  or  required  by it,  then,  to the full  extent
permitted by law, (a) all other provisions hereof shall remain in full force and
effect in such  jurisdiction and shall be liberally  construed in order to carry
out the  intent of the  parties  hereto as nearly as may be  possible,  (b) such
invalidity,  illegality  or  unenforceability  shall not  affect  the  validity,
legality or enforceability  of any other provision hereof,  and (c) any court or
arbitrator  having  jurisdiction  thereover  shall have the power to reform such
provision to the extent  necessary for such  provision to be  enforceable  under
applicable law.

                16. COORDINATION WITH CHANGE OF CONTROL AGREEMENT

         The Company and the Executive are contemporaneously with this Agreement
entering into a Change of Control Agreement (the "Change of Control Agreement"),
which agreement  provides for certain forms of severance and benefit payments in
the  event of  termination  of  Executive's  employment  under  certain  defined
circumstances. This Agreement is in addition to the Change of Control Agreement,
providing certain  assurances to the Executive in circumstances  that the Change
of Control  Agreement does not cover,  and in no way supersedes or nullifies the
Change of Control Agreement.  Nevertheless, it is possible that a termination of
employment  by the Company or by the Executive may fall within the scope of both
agreements.  In such event,  payments  made to the  Executive  under Section 5.1
hereof shall be  coordinated  with payments made to the Executive  under Section
8.1 of the Change of Control Agreement as follows:

                  (a) Accrued  Obligations  under this  Agreement  shall be paid
first,  in which case Accrued  Obligations  need not be paid under the Change of
Control Agreement;

                  (b) COBRA  Continuation under this Agreement shall be provided
first, in which case COBRA Continuation need not be provided under the Change of
Control Agreement; and

                  (c) The severance payment required under Section 5.1(c) hereof
shall be paid in addition to any severance payment required under Section 8.1(c)
of the Change of Control Agreement.

                         17. EXCESS PARACHUTE PAYMENTS

         Unless provided by Section 8.8 of the Change of Control  Agreement,  if
any  portion of the  payments  or  benefits  under this  Agreement  or any other
agreement  or benefit plan of the Company  (including  stock  options)  would be
characterized  as an "excess  parachute  payment" to the Executive under Section
280G of the  Internal  Revenue  Code of  1986,  as  amended  (the  "Code"),  the
Executive  shall be paid any excise tax that the  Executive  owes under  Section
4999 of the Code as a result of such  characterization,  such  excise  tax to be
paid to the  Executive  at least  ten  (10)  days  prior to the date  that he is
obligated to make the excise tax payment.  The  determination  of whether and to
what extent any payments or benefits  would be "excess  parachute  payments" and
the date by which any excise tax shall be due, shall be determined in writing by
recognized tax counsel selected by the Company and reasonably  acceptable to the
Executive.

                                      -10-

<PAGE>

                              18. ENTIRE AGREEMENT

         Except as described in Section 16 hereof,  this  Agreement  constitutes
the entire  agreement  between the Company and the Executive with respect to the
subject  matter  hereof,  and all  prior  or  contemporaneous  oral  or  written
communications,  understandings  or  agreements  between  the  Company  and  the
Executive  with  respect  to such  subject  matter  are  hereby  superseded  and
nullified  in their  entireties,  except that the  Proprietary  Information  and
Invention Agreement between the Executive and the Company shall continue in full
force and effect to the extent not superseded by Section 10 hereof.

                                 19. WITHHOLDING

         The Company may withhold from any amounts  payable under this Agreement
such federal,  state or local taxes as shall be required to be withheld pursuant
to any applicable law or regulation.

                                20. COUNTERPARTS

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

         IN WITNESS  WHEREOF,  the parties  have  executed and entered into this
Agreement effective on the date first set forth above.



NEORX CORPORATION                                        EXECUTIVE


By:______________________________               _____________________________
      Its:_______________________               _____________________________




                                      -11-

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEETS OF NEORX CORPORATION AS OF 6/30/96 AND 12/31/95, AND THE RELATED STATE-
MENTS OF OPERATIONS FOR EACH OF THE SIX MONTHS ENDED 6/30/96 AND 6/30/95 AND
FOR THE PERIOD FROM 2/13/84 (INCEPTION) TO 6/30/96 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH 10-Q REPORT FOR THE PERIOD ENDED 6/30/96.
</LEGEND>                                       
<MULTIPLIER>                                   1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                              DEC-31-1996
<PERIOD-END>                                   JUN-30-1996
<CASH>                                               4,580
<SECURITIES>                                        14,824
<RECEIVABLES>                                            0
<ALLOWANCES>                                             0
<INVENTORY>                                            585
<CURRENT-ASSETS>                                    20,960
<PP&E>                                               6,874
<DEPRECIATION>                                       6,114
<TOTAL-ASSETS>                                      21,838
<CURRENT-LIABILITIES>                                1,682
<BONDS>                                              1,261
                                    0
                                              5 
<COMMON>                                               310
<OTHER-SE>                                          18,580
<TOTAL-LIABILITY-AND-EQUITY>                        21,838
<SALES>                                                  0
<TOTAL-REVENUES>                                        21
<CGS>                                                    0
<TOTAL-COSTS>                                            0
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                      71
<INCOME-PRETAX>                                    (6,765)
<INCOME-TAX>                                             0 
<INCOME-CONTINUING>                                (6,765)
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                       (6,765)
<EPS-PRIMARY>                                        (.47)
<EPS-DILUTED>                                        (.47)
        

</TABLE>


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