NEORX CORPORATION CHANGE OF CONTROL AGREEMENT

that this agreement shall automatically renew for successive additional one (1) year periods ( “ Renewal Terms ” ) 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.  The “ Term ” of this Agreement shall be the Initial Term plus all Renewal Terms and, if applicable, the duration of the Employment Period.  At the end of the Term, this Agreement shall terminate without further action by either the Company or the Executive.

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

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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 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.

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 his 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 paid.  The Board or the

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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 and 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, and 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 her 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.

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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:

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

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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 other cases, ten (10) days after the date of personal delivery or mailing of the Notice 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 which 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); provided that, in the event that the Executive is entitled to an amount in respect of the Annual Bonus under Section 8.1(c), he shall receive the amount payable under Section 8.1(c) first and the amount payable under this Section 8.1(a)(ii) only to the extent it exceeds the amount payable under Section 8.1(c); and

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(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 ”) ;

(c)                                   an amount equal to fifty percent (50%) of the Annual Bonus that would have been paid to the Executive for the fiscal year in which the Date of Termination falls but for the termination of the Executive’s employment;

(d)           an amount as severance pay equal to fifty percent (50%) of the Annual Base Salary for the fiscal year in which the Date of Termination occurs; and

(e)                                   immediate vesting of all outstanding stock options previously granted to the Executive by the Company.

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