The President will have an MIP Discretionary Fund equivalent to a set percentage of the total Guideline Incentives for all participants.

Discretionary Adjustments. Upon the occurrence or in anticipation of any corporate event or transaction involving the Company (including, without limitation, any merger, reorganization, recapitalization, combination or exchange of shares, or any transaction described in [Section 4(B)], the Committee may, in its sole discretion, provide # that Awards will be settled in cash rather than Stock, # that Awards will become immediately vested and non-forfeitable and exercisable (in whole or in part) and will expire after a designated period of time to the extent not then exercised, # that Awards will be assumed by another party to a transaction or otherwise be equitably converted or substituted in connection with such transaction, # that outstanding Awards may be settled by payment in cash or cash equivalents equal to the excess of the fair market value of the underlying Stock, as of a specified date associated with the transaction (or the per-shares transaction price), over the exercise or base price of the Award, # that performance targets and performance periods for Performance Awards will be modified, or # any combination of the foregoing. The Committee’s determination need not be uniform and may be different for different Participants whether or not such Participants are similarly situated. Any discretionary adjustments made pursuant to this [Section 4(C)] shall be subject to the provisions of [Section 15(B)].

Discretionary Bonuses. The Compensation Committee may also make discretionary bonus payments under the Plan based upon such terms and conditions as the Compensation Committee may determine in its sole discretion, regardless of whether the Compensation Committee establishes such terms and conditions or a target amount for such discretionary bonus payment in advance.

Discretionary Termination. Regeneron, in its sole discretion, may terminate this Agreement in its entirety effective as of any time after the ​ of the Effective Date upon delivery of at least ​ days’ prior written notice to CytomX.

Discretionary Bonus. At the end of each Calendar year, if employed by the Company, Officer will be eligible for a discretionary cash bonus of between 50% and 125% of the Salary, with a target bonus of 100% of Officer’s Salary (the “Target Bonus”), based on the achievement of operational and strategic performance goals established by the Committee in consultation with Officer. Such discretionary annual bonus will be evaluated and paid (if applicable) no later than the last day of the second month following the calendar year in which such bonus was earned. The Officer and the Company will set forth the goals for 2021 within sixty (60) days after the date of this Agreement. Thereafter, goals will be set annually within sixty (60) days after the end of the company's fiscal year.

Discretionary Grants. In addition to the automatic grants described herein, the Board, in its sole discretion, may grant additional equity awards to certain Outside Directors for services to the Company that exceed the standard expectations of an Outside Director or for other circumstances determined appropriate by the Board, including, without limitation, an inducement for the Outside Director to remain on the Board or an initial grant for an individual to become an Outside Director.

Discretionary Bonus. For each calendar year during the Employment Period, Executive shall be eligible to receive a discretionary annual bonus subject to the terms of the bonus plan established by the Board (the “Annual Bonus”). As of the Effective Date, the Executive’s annual target bonus opportunity shall be equal to 100% of Base Salary (the “Target Bonus”), based on the achievement of performance goals established by the Board. For the 2018 calendar year, Executive will be eligible for a prorated Annual Bonus determined by multiplying the Annual Bonus (if any) by a fraction, the numerator of which is equal to the number of days Executive works in calendar year ​ and the denominator of 365.

Discretionary Bonus. Although it is not anticipated by the parties, Executive may become eligible to receive an annual discretionary bonus. The actual amount of the annual discretionary bonus, if any, is to be determined by the Company, in its sole and absolute discretion (subject to appropriate withholdings and deductions); provided, however, that to be eligible to receive such bonus Executive must be employed by the Company on the date any such bonus is paid.

Discretionary Bonus. During the Employment Period, Executive shall be entitled to participate in an equitable manner with other senior management employees of the Employer in such annual or other periodic bonus programs (if any) as may be maintained from time to time by the Employer for its executive officers.

Discretionary Bonus. At the sole discretion of the Board and ​, promptly following each calendar year of employment CFO shall be eligible to receive a discretionary cash bonus of up to 30% of CFO’s then-current base salary (the “Bonus”), based on CFO’s achievement relative to certain performance goals (“Performance Goals”) to be established by the ​ in writing in a manner reasonably consistent with the Company’s priorities. The determination of whether CFO has met the Performance Goals for any given year, and if so, the amount of any Bonus that will be paid for such year (if any), shall be determined by the Board and ​ in their sole and absolute discretion. In order to be eligible to earn or receive any Bonus, CFO must remain employed by the Company through and including the date of payment of such Bonus. For the first calendar year of CFO’s employment with Company, the Bonus payable shall be pro-rated in accordance with the percentage of the calendar year that the CFO is an employee of the Company.