Document:

Compensation Information for Non-Employee Directors.

 Exhibit 10.18 
 COMPENSATION INFORMATION FOR NON-EMPLOYEE DIRECTORS 
 Exelixis, Inc. 
 2009 Cash Compensation for Non-Employee Directors 
  

						
	 Board of Directors
	  	Retainer Fee	  	$	20,000
		  	Additional Chair Retainer Fee	  	$	25,000
		  	Regular Meeting Fee	  	$	2,500
		  	Special Meeting Fee*	  	$	1,000
	 Audit Committee
	  	Retainer Fee	  	$	6,000
		  	Additional Chair Retainer Fee	  	$	10,000
		  	Meeting Fee**	  	$	1,000
	 Compensation Committee
	  	Retainer Fee	  	$	5,000
		  	Additional Chair Retainer Fee	  	$	5,000
		  	Meeting Fee**	  	$	1,000
	 Nominating & Corporate Governance Committee
	  	Retainer Fee	  	$	5,000
		  	Additional Chair Retainer Fee	  	$	5,000
		  	Meeting Fee**	  	$	1,000
	 Research & Development Committee
	  	Retainer Fee	  	$	10,000
		  	Additional Chair Retainer Fee	  	$	10,000
		  	Meeting Fee**	  	$	5,000

  

	*	Meeting at which minutes are generated. 

  

	**	In-person meeting or teleconference at which minutes are generated. 

 Exelixis, Inc. 
 2009 Equity Compensation for Non-Employee Directors 
  

								
	 Board of Directors
	  	Initial Option Grant*	  	Number of Options	  	25,000	 
		  	Annual Option Grant	  	Number of Options	  	11,250	**

  

	*	For new directors only. 

  

	**	Our 2000 Non-Employee Directors’ Stock Option Plan provides for an annual option grant to each non-employee director of 15,000 options. Each of our non-employee directors has
waived his right to 25% of the annual option grant for 2009. The annual option grants will occur automatically on the date of our 2009 Annual Meeting of Stockholders.Exelixis, Inc. Change in Control and Severance Plan.

 Exhibit 10.19 
 EXELIXIS, INC. 
 CHANGE IN CONTROL AND SEVERANCE BENEFIT PLAN 
 SECTION 1. INTRODUCTION. 
 The
Exelixis, Inc. Change in Control and Severance Benefit Plan (the “Plan”), established on December 9, 2005, is hereby amended and restated effective December 23, 2008 (the “Effective Date”).
The purpose of the Plan is to provide for the payment of severance benefits to certain eligible employees of Exelixis, Inc. and its wholly owned subsidiaries (the “Company”) in the event that such employees are subject to
qualifying employment terminations and additional benefits if such qualifying employment termination occurs in connection with a Change in Control. This Plan shall supersede any severance benefit plan, contract, agreement, policy or practice
maintained by the Company on the Effective Date; provided, however, that if any provision relating to stock options or other awards contained in the Company’s 2000 Equity Incentive Plan, or any successor or similar plan adopted by
the Company (the “Equity Incentive Plan”) is more favorable to an employee than the corresponding provision or the absence of such corresponding provision in the Plan, then such more favorable provision in the Equity
Incentive Plan shall govern, but the remainder of the Plan shall continue in full force and effect. As applicable, this Plan shall constitute an amendment to an employee’s stock option agreement or other agreement under the Equity Incentive
Plan. This document also is the Summary Plan Description for the Plan. 
 SECTION 2. DEFINITIONS. 
 For purposes of the Plan, except as otherwise provided in the applicable Participation Notice, the following terms are defined as follows: 
 (a) “Base Salary” means the Participant’s annual base pay (excluding incentive pay, premium pay, commissions,
overtime, bonuses and other forms of variable compensation), at the rate in effect during the last regularly scheduled payroll period immediately preceding the date of the Participant’s Covered Termination divided by twelve (12). 
 (b) “Board” means the Board of Directors of Exelixis, Inc. 
 (c) “Bonus” means the Participant’s target bonus established by the Company’s Compensation Committee for the
year in which the Covered Termination occurs divided by twelve (12). 
 (d) “Change in Control” means one of
the following events or a series of more than one of the following events: (i) when a person, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934) acquires beneficial ownership of the
Company’s capital stock equal to 50% or more of either (x) the then-outstanding shares of the Company’s common stock or (y) the combined voting power of the Company’s then-outstanding securities to vote generally in the
election of directors; (ii) upon the consummation by the 

  

 1. 

 
Company of (x) a reorganization, merger or consolidation, provided that, in each case, the persons who were the Company’s stockholders immediately
prior to the reorganization, merger or consolidation do not, immediately after, own more than 50% of the combined voting power entitled to vote generally in the election of directors of the reorganized, merged or consolidated company’s then
outstanding voting securities, or (y) a liquidation or dissolution of the Company or the sale of all or substantially all of the Company’s assets; or (iii) when the Continuing Directors (as defined below) do not constitute a majority
of the Board (or, if applicable, the Board of a successor corporation to the Company), where the term “Continuing Director” means at any date a member of the Board (x) who was a member of the Board on the date of the initial adoption
of this Plan by the Board or (y) who was nominated or elected subsequent to such date by at least a majority of the directors who were Continuing Directors at the time of such nomination or election or whose election to the Board was
recommended or endorsed by at least a majority of the directors who were Continuing Directors at the time of such nomination or election; provided, however, that any individual whose initial assumption of office occurred as a result of
an actual or threatened election contest with respect to the election or removal of directors or other actual or threatened solicitation of proxies or consents, by or on behalf of a person other than the Board, is excluded from clause (iii)(y)
above. For the purposes of this definition, (i) prior to a Change in Control, “Company” shall mean only Exelixis, Inc. or its successor and shall not include (A) its wholly owned subsidiaries or (B) the surviving or
controlling entity resulting from a Change in Control or the entity to which the Company’s assets were transferred in the case of an asset sale constituting a Change in Control and (ii) following a Change in Control, “Company”
shall mean only Exelixis, Inc. (or its successor) and any surviving or controlling entity resulting from such Change in Control or the entity to which the Company’s assets were transferred in the case of an asset sale constituting such a Change
in Control and shall not include any wholly owned subsidiaries. 
 (e) “Change in Control Termination” means a
Covered Termination which occurs within one (1) month prior to or within thirteen (13) months following the effective date of a Change in Control. 
 (f) “COBRA Period” means (i) in the case of a Change in Control Termination, the number of months set forth in Section 4(a)(iii) and (ii) in the case of a Covered
Termination that is not a Change in Control Termination, (x) in the case of an Executive Participant, six (6) months and (y) in the case of a Participant who is not an Executive Participant, zero (0) months. 
 (g) “Code” means the Internal Revenue Code of 1986, as amended. 
 (h) “Company” means Exelixis, Inc., its wholly owned subsidiaries, any successor to Exelixis, Inc. and, following a Change
in Control, the surviving or controlling entity resulting from such a Change in Control or the entity to which the Company’s assets were transferred in the case where the Change in Control is an asset sale. 
 (i) “Constructive Termination” means a voluntary termination of employment with the Company resulting in a
“separation from service” within the meaning of Treasury Regulation Section 1.409A-1(h) (without regard to any permissible alternative definition of “termination of employment” thereunder) by a Participant after one of the
following is undertaken without the Participant’s written consent: (i) reduction of such Participant’s base salary by more than ten 

  

 2. 

 
percent (10%) as in effect immediately prior to the time such reduction occurs; (ii) the occurrence of a material diminution in the package of
welfare benefit plans, taken as a whole, in which such Participant is entitled to participate immediately prior to the time such material diminution (except that such Participant’s contributions may be raised to the extent of any cost increases
imposed by third parties); provided, however, that such material diminution qualifies as an “involuntary separation from service” as provided under Treasury Regulation Section 1.409A-1(n)(2)(i) or (ii); (iii) a
change in such Participant’s responsibilities, authority or offices that, taken as a whole, result in a material diminution of position; provided, however, that a change in the Participant’s title or reporting relationships
shall not by itself constitute a Constructive Termination; (iv) a request that such Participant relocate to a worksite that is more than thirty-five (35) miles from such Participant’s prior worksite, unless such Participant accepts
such relocation opportunity; (v) a material reduction in duties; (vi) a failure or refusal of any successor company to assume the obligations of the Company under an agreement with such Participant; or (vii) a material breach by the
Company of any of the material provisions of an agreement with such Participant, including, without limitation, a breach of the terms of any agreement or program providing for the payment of bonus compensation. Notwithstanding any provision of this
definition of “Constructive Termination” to the contrary, an event or action by the Company shall not give the Participant grounds to voluntarily terminate employment as a Constructive Termination unless the Participant gives the Company
written notice within thirty (30) days of the initial existence of such event or action that the event or action by the Company would give the Participant such grounds to so terminate employment and such event or action is not reversed,
remedied or cured, as the case may be, by the Company as soon as possible but in no event later than within thirty (30) days of receiving such written notice from the Participant. For the avoidance of doubt, the cessation of employment followed
by the immediate commencement of services as an independent contractor for the Company, which does not result in a “separation from service” with the Company within the meaning of Treasury Regulation Section 1.409A-1(h), shall not
constitute a Constructive Termination. 
 (j) “Covered Termination” means (x) an Involuntary Termination
Without Cause or (y) a Constructive Termination if such Constructive Termination occurs any time after the date that is one (1) month prior to the effective date of the first Change in Control that occurs after the Participant commences
participation in the Plan. Termination of employment of a Participant due to death or disability shall not constitute a Covered Termination unless a voluntary termination of employment by the Participant immediately prior to the Participant’s
death or disability would have qualified as a Constructive Termination. 
 (k) “Equity Incentive Plan” means
the 2000 Equity Incentive Plan or any successor or similar plan adopted by the Company. 
 (l) “ERISA” means
the Employee Retirement Income Security Act of 1974, as amended. 
 (m) “Involuntary Termination Without
Cause” means Participant’s involuntary termination of employment by the Company resulting in a “separation from service” within the meaning of Treasury Regulation Section 1.409A-1(h) (without regard to any
permissible alternative definition of “termination of employment” thereunder) for a reason other than Cause. “Cause” means the occurrence of any one or more of the following: (i) the Participant’s 

  

 3. 

 
conviction of, or plea of no contest with respect to, any crime involving fraud, dishonesty or moral turpitude; (ii) the Participant’s attempted
commission of or participation in a fraud or act of dishonesty against the Company that results in (or might have reasonably resulted in) material harm to the business of the Company; (iii) the Participant’s intentional, material violation
of any contract or agreement between the Participant and the Company or any statutory duty the Participant owes to the Company; or (iv) the Participant’s conduct that constitutes gross misconduct, insubordination, incompetence or habitual
neglect of duties and that results in (or might have reasonably resulted in) material harm to the business of the Company; provided, however, that the conduct described under clause (iii) or (iv) above will only constitute
Cause if such conduct is not cured within fifteen (15) days after the Participant’s receipt of written notice from the Company or the Board specifying the particulars of the conduct that may constitute Cause. For the avoidance of doubt,
if, in connection with a Change in Control, an employee is terminated and offered “immediate reemployment” by the surviving or controlling entity resulting from a Change in Control or the entity to which the Company’s assets were
transferred in the case of an asset sale constituting a Change in Control, then such termination shall not constitute an Involuntary Termination Without Cause. For purposes of the foregoing, “immediate reemployment” shall mean that the
employee’s employment with the surviving or controlling entity resulting from a Change in Control or the entity to which the Company’s assets were transferred in the case of an asset sale constituting a Change in Control, results in
uninterrupted employment such that the employee does not suffer a lapse in pay as a result of the Change in Control and the terms of such reemployment, taken as a whole, are not less favorable than the terms of employment with the Company
immediately prior to such employee’s termination of employment. For the avoidance of doubt, the cessation of employment followed by the immediate commencement of services as an independent contractor for the Company, which does not result in a
“separation from service” with the Company within the meaning of Treasury Regulation Section 1.409A-1(h), shall not constitute an Involuntary Termination Without Cause. 
 (n) “Participant” means an individual (i) who is employed by the Company as its Chief Executive Officer, President,
senior vice president, vice president or any other officer with a rank of vice president or above and (ii) who has received a Participation Notice from and executed and returned such Participation Notice to the Company. The determination of
whether an employee is a Participant shall be made by the Plan Administrator, in its sole discretion, and such determination shall be binding and conclusive on all persons. “Executive Participant” means a Participant who has
been designated as an Executive Participant on the Participant’s Participation Notice. 
 (o) “Participation
Notice” means the latest notice delivered by the Company to a Participant informing the employee that the employee is a Participant in the Plan, substantially in the form of Exhibit A hereto. 
 (p) “Plan Administrator” means the Board or any committee duly authorized by the Board to administer the Plan. The Plan
Administrator may, but is not required to be, the Compensation Committee of the Board. The Board may at any time administer the Plan, in whole or in part, notwithstanding that the Board has previously appointed a committee to act as the Plan
Administrator. 
  

 4. 

 SECTION 3. ELIGIBILITY FOR BENEFITS. 
 (a) General Rules. Subject to the provisions set forth in this Section and Section 7, in the event of a Covered Termination, the
Company will provide the severance benefits described in Section 4 of the Plan to the affected Participant. 
 (b) Exceptions
to Benefit Entitlement. An employee, including an employee who otherwise is a Participant, will not receive benefits under the Plan (or will receive reduced benefits under the Plan) in the following circumstances, as determined by the Company in
its sole discretion: 
 (i) The employee has executed an individually negotiated employment contract or agreement with
the Company relating to severance or change in control benefits that is in effect on his or her termination date, in which case such employee’s severance benefit, if any, shall be governed by the terms of such individually negotiated employment
contract or agreement. 
 (ii) The employee voluntarily terminates employment with the Company in order to accept
employment with another entity that is controlled (directly or indirectly) by the Company or is otherwise an affiliate of the Company. 
 (iii) The employee does not confirm in writing that he or she shall be subject to the Company’s Employee Proprietary Information and Inventions Agreement. 
 (c) Termination of Benefits. A Participant’s right to receive the payment of benefits under this Plan shall terminate immediately if,
at any time prior to or during the period for which the Participant is receiving benefits hereunder, the Participant, without the prior written approval of the Company: 
 (i) willfully breaches a material provision of the Participant’s Employee Proprietary Information and Inventions Agreement
with the Company, as referenced in Section 3(b)(iii); or 
 (ii) willfully encourages or solicits any of the
Company’s then current employees to leave the Company’s employ. 
 SECTION 4. AMOUNT OF BENEFITS.

 (a) Cash Severance Benefits. Except as provided in the applicable Participant Notice: 
 (i) Each Executive Participant who incurs a Covered Termination that is not also a Change in Control Termination shall be entitled
to receive a cash severance benefit equal to six (6) months of Base Salary. Any cash severance benefits provided under this Section 4(a)(i) shall be paid pursuant to the provisions of Section 5. 
  

 5. 

 (ii) Each Participant (x) who incurs a Change in Control Termination and
(y) who was employed by the Company at the position or level set forth in Section 4(a)(iii) below within one (1) month immediately prior to such Change in Control Termination shall be entitled to receive a cash severance benefit equal
to the sum of the Participant’s Base Salary plus Bonus for the number of months set forth in Section 4(a)(iii). If a Participant serves in two or more positions set forth in the table below, such cash severance benefit shall be for the
position with the greatest number of months of cash severance, with no additional cash severance for the other position(s). Any cash severance benefits provided under this Section 4(a)(ii) shall be paid pursuant to the provisions of
Section 5. 
 (iii) For the purposes of determining the months of severance benefits in the event of a Change in
Control Termination, the following periods shall be used. 
  

			
	 Position or Level
	  	Months of Severance Benefit
	 Chief Executive Officer
	  	24 months
		
	 Executive Participants other than the Chief Executive Officer
	  	18 months
		
	 Participants who are not Executive Participants
	  	12 months

 (b) Accelerated Stock Award Vesting and Extended Exercisability of Stock Options. If
a Participant incurs a Change in Control Termination, then effective as of the date of the Participant’s Change in Control Termination, (i) the vesting and exercisability of all outstanding options to purchase the Company’s common
stock (or stock appreciation rights or similar rights or other rights with respect to stock of the Company issued pursuant to the Equity Incentive Plan) that are held by the Participant on such date shall be accelerated in full, and (ii) any
reacquisition or repurchase rights held by the Company in respect of common stock issued or issuable (or in respect of similar rights or other rights with respect to stock of the Company issued or issuable pursuant to the Equity Incentive Plan)
pursuant to any other stock award granted to the Participant by the Company shall lapse. 
 In addition, if a Participant incurs a Change in Control Termination, the post-termination of employment exercise period of any outstanding option (or stock appreciation right or similar right or other rights with respect to stock of the
Company issued pursuant to the Equity Incentive Plan) held by the Participant on the date of his or her Change in Control Termination shall be extended, if necessary, such that the post-termination of employment exercise period shall not terminate
prior to the later of (i) the date twelve (12) months after the effective date of the Change in Control or (ii) the post-termination exercise period provided for in such option; provided, however, that such stock right
shall not be exercisable after the expiration of its maximum term. Notwithstanding the foregoing, stock rights granted prior to the Effective Date shall not be exercisable after the later of (A) the 15th day of the third month following the date at which, or (B) December 31 of the calendar year in which, the stock right would otherwise have expired if the stock right had
not been extended. 
  

 6. 

 Notwithstanding the provisions of this Section 4(b), in the event that the provisions of this
Section 4(b) regarding acceleration of vesting of an option or extended exercisability of an option would adversely affect a Participant’s option or other stock award (including, without limitation, its status as an incentive stock option
under Section 422 of the Code) that is outstanding on the date the Participant commences participation in the Plan, such acceleration of vesting and/or extended exercisability shall be deemed null and void as to such option or other stock award
unless the affected Participant consents in writing to such acceleration of vesting or extended exercisability as to such option or other stock award within thirty (30) days after becoming a Participant in the Plan. 
 (c) Continued Medical Benefits. If a Participant incurs a Covered Termination and the Participant was enrolled in a health, dental,
or vision plan sponsored by the Company immediately prior to such Covered Termination, the Participant may be eligible to continue coverage under such health, dental, or vision plan (or to convert to an individual policy), at the time of the
Participant’s termination of employment, under the Consolidated Omnibus Budget Reconciliation Act of 1985 (“COBRA”). The Company will notify the Participant of any such right to continue such coverage at the time of
termination pursuant to COBRA. No provision of this Plan will affect the continuation coverage rules under COBRA, except that the Company’s payment, if any, of applicable insurance premiums will be credited as payment by the Participant for
purposes of the Participant’s payment required under COBRA. Therefore, the period during which a Participant may elect to continue the Company’s health, dental, or vision plan coverage at his or her own expense under COBRA, the length of
time during which COBRA coverage will be made available to the Participant, and all other rights and obligations of the Participant under COBRA (except the obligation to pay insurance premiums that the Company pays, if any) will be applied in the
same manner that such rules would apply in the absence of this Plan. 
 If a Participant timely elects continued coverage under COBRA, the
Company shall pay the full amount of the Participant’s COBRA premiums on behalf of the Participant for the Participant’s continued coverage under the Company’s health, dental and vision plans, including coverage for the
Participant’s eligible dependents, during the number of months equal to the COBRA Period; provided, however, that if the COBRA Period exceeds the length of time that the Participant is entitled to coverage under COBRA
(including any additional period under analogous provisions of state law), the Company or any resulting or acquiring entity or transferee entity (in the case of an asset sale) involved in a Change in Control, as applicable, shall be required to
provide health, dental and vision insurance coverage for the Participant and his or her eligible dependents for any portion of the COBRA Period that exceeds the length of time that the Participant is entitled to coverage under COBRA (including any
additional period under analogous provisions of state law), at a level of coverage that is substantially similar to the continued coverage that the Participant and his or her eligible dependents received under the Company’s health, dental and
vision plans; provided further, however, that no such premium payments (or any other payments for medical, dental or vision coverage by the Company) shall be made following the Participant’s death or the effective
date of the Participant’s coverage by a medical, dental or vision insurance plan of a subsequent employer. Each Participant shall be required to notify the Company immediately if the Participant becomes covered by a medical, dental or vision
insurance plan of a subsequent employer. Upon the conclusion of the COBRA Period (or such shorter period during which the Company is obligated to pay premiums pursuant to this Section 4(c)), the Participant will be responsible for the entire
payment of premiums required under COBRA. 
  

 7. 

 For purposes of this Section 4(c), (i) references to COBRA shall be deemed to
refer also to analogous provisions of state law and (ii) any applicable insurance premiums that are paid by the Company shall not include any amounts payable by the Participant under an Internal Revenue Code Section 125 health care
reimbursement plan, which amounts, if any, are the sole responsibility of the Participant. 
 (d) Outplacement Services.
If a Participant incurs a Change in Control Termination, the Company shall pay, on behalf of the Participant, for outplacement services with an outplacement service provider selected by the Company for the time periods specified below;
provided, however, that the payments made by the Company for such outplacement services shall not exceed the maximum amounts set forth below; provided further, however, that such payments qualify for the exception
provided by Treasury Regulation Sections 1.409A-1(b)(9)(v)(A) and (C). 
  

						
	 Position or Level
	  	Time Period	  	Maximum Amount
	 Chief Executive Officer
	  	24 months	  	$	50,000
	 Executive Participants other than the Chief Executive Officer
	  	18 months	  	$	30,000
	 Participants who are not Executive Participants
	  	12 months	  	$	20,000

 (e) Other Employee Benefits. All other benefits (such as life insurance, disability
coverage, and 401(k) plan coverage) shall terminate as of the Participant’s termination date (except to the extent that a conversion privilege may be available thereunder). 
 (f) Additional Benefits. Notwithstanding the foregoing, the Company may, in its sole discretion, provide additional or enhanced benefits to
those benefits provided for pursuant to Sections 4(a), 4(b), 4(c) and 4(d) to Participants or employees who are not Participants (“Non-Participants”) chosen by the Company, in its sole discretion, and the provision of any
such benefits to a Participant or a Non-Participant shall in no way obligate the Company to provide such benefits to any other Participant or to any other Non-Participant, even if similarly situated. If benefits under the Plan are provided to a
Non-Participant, references in the Plan to “Participant” (with the exception of Sections 4(a), 4(b), 4(c) and 4(d)) shall be deemed to refer to such Non-Participants. 
  

 8. 

 SECTION 5. TIME AND FORM OF SEVERANCE
PAYMENTS. 
 (a) General Rules. Subject to Section 5(b), any cash severance benefit provided under
Section 4(a) shall be paid in installments pursuant to the Company’s regularly scheduled payroll periods commencing as soon as practicable following the effective date of a Participant’s Covered Termination and shall be subject to all
applicable withholding for federal, state and local taxes. In the event of a Participant’s death prior to receiving all installment payments of his or her cash severance benefit under Section 4(a), any remaining installment payments shall
be made to the Participant’s estate on the same payment schedule as would have occurred absent the Participant’s death. In no event shall payment of any Plan benefit be made prior to the effective date of the Participant’s Covered
Termination or prior to the effective date of the release described in Section 7(a). 
 (b) Application of Section 409A. 

 (i) All payments provided under this Plan are intended to constitute separate payments for purposes of Treasury
Regulation Section 1.409A-2(b)(2). 
 (ii) If a Participant is a “specified employee” of the Company or
any affiliate thereof (or any successor entity thereto) within the meaning of Section 409A(a)(2)(B)(i) of the Code on the date of a Covered Termination, then any cash severance payments pursuant to Section 4(a) (the “Severance
Payments”) shall be delayed until the date that is six (6) months after the date of the Covered Termination (such date, the “Delayed Payment Date”), and the Company (or the successor entity thereto, as
applicable) shall (A) pay to Participant a lump sum amount equal to the sum of the Severance Payments that otherwise would have been paid to Participant on or before the Delayed Payment Date, without any adjustment on account of such delay, and
(B) continue the Severance Payments in accordance with any applicable payment schedules set forth for the balance of the period specified herein. Notwithstanding the foregoing, (i) Severance Payments scheduled to be paid from the date of a
Covered Termination through March 15th of the calendar year following such termination shall be paid to the maximum extent permitted pursuant to the “short-term deferral” rule set forth in Treasury Regulation
Section 1.409A-1(b)(4); (ii) Severance Payments scheduled to be paid that are not paid pursuant to the preceding clause (i) shall be paid as scheduled to the maximum extent permitted pursuant to an “involuntary separation from
service” as permitted by Treasury Regulation Section 1.409A-1(b)(9)(iii), but in no event later than the last day of the second taxable year following the taxable year of the Covered Termination; and (iii) any Severance Payments that
are not paid pursuant to either the preceding clause (i) or the preceding clause (ii) shall be subject to delay, if necessary, as provided in the previous sentence. Except to the extent that payments may be delayed until the Delayed
Payment Date, on the first regularly scheduled payroll period following the release described in Section 7(a), the Company will pay the Participant the Severance Payments the Participant would otherwise have received under the Plan on or prior
to such date but for the delay in payment related to the effectiveness of the release described in Section 7(a), with the balance of the Severance Payments being paid as otherwise provided herein. 
  

 9. 

 (iii) Benefits provided under Section 4(b) are intended to be provided
pursuant to the exception provided by Treasury Regulation Sections 1.409A-1(b)(5)(v)(C)(1) and 1.409A-1(b)(5)(v)(E). Amounts paid under Section 4(c) are not intended to be delayed pursuant to Section 409A(a)(2)(B)(i) of the Code and are
intended to be paid pursuant to the exception provided by Treasury Regulation Section 1.409A-1(b)(9)(v)(B). Amounts paid under Section 4(d) are intended to qualify for the exception provided under Treasury Regulation Sections
1.409A-1(b)(9)(v)(A) and (C). 
 SECTION 6. REEMPLOYMENT. 
 In the event of a Participant’s reemployment by the Company during the period of time in respect of which severance benefits pursuant to Section 4(a) or Section 4(f) have been paid, the Company, in its
sole and absolute discretion, may require such Participant to repay to the Company all or a portion of such severance benefits as a condition of reemployment. 
 SECTION 7. LIMITATIONS ON BENEFITS. 
 (a) Release. In order to be
eligible to receive benefits under the Plan and if requested by the Company, a Participant also must execute, in connection with the Participant’s Covered Termination or Change in Control Termination, a general waiver and release in
substantially the form attached hereto as Exhibit B, Exhibit C or Exhibit D, as appropriate, and such release must become effective in accordance with its terms; provided, however, no such release shall
require the Participant to forego any unpaid salary, any accrued but unpaid vacation pay or any benefits payable pursuant to this Plan. With respect to any outstanding option held by the Participant, no provision set forth in this Plan granting the
Participant additional rights to exercise the option can be exercised unless and until the release, if requested, becomes effective. The Company, in its sole discretion, may modify the form of the required release to comply with applicable law and
shall determine the form of the required release, which may be incorporated into a termination agreement or other agreement with the Participant. 
 (b) Certain Reductions. The Company, in its sole discretion, shall have the authority to reduce a Participant’s severance benefits, in whole or in part, by any other severance benefits, pay in lieu of notice, or other
similar benefits payable to the Participant by the Company that become payable in connection with the Participant’s termination of employment pursuant to (i) any applicable legal requirement, including, without limitation, the Worker
Adjustment and Retraining Notification Act (the “WARN Act”), (ii) a written employment or severance agreement with the Company, or (iii) any Company policy or practice providing for the Participant to remain on the
payroll for a limited period of time after being given notice of the termination of the Participant’s employment. The benefits provided under this Plan are intended to satisfy, in whole or in part, any and all statutory obligations and other
contractual obligations of the Company that may arise out of a Participant’s termination of employment, and the Plan Administrator shall so construe and implement the terms of the Plan. The Company’s decision to apply such reductions to
the severance benefits of one Participant and the amount of such reductions shall in no way obligate the Company to apply the same reductions in the same amounts to the severance benefits of any other Participant, even if similarly situated. In the
Company’s sole discretion, such reductions may be applied on a retroactive basis, with severance benefits previously paid being recharacterized as payments pursuant to the Company’s statutory or other contractual obligations. 

 

 10. 

 (c) Mitigation. Except as otherwise specifically provided herein, a Participant shall not
be required to mitigate damages or the amount of any payment provided under this Plan by seeking other employment or otherwise, nor shall the amount of any payment provided for under this Plan be reduced by any compensation earned by a Participant
as a result of employment by another employer or any retirement benefits received by such Participant after the date of the Participant’s termination of employment with the Company. 
 (d) Non-Duplication of Benefits. Except as otherwise specifically provided for herein, no Participant is eligible to receive benefits under
this Plan or pursuant to other contractual obligations more than one time. This Plan is designed to provide certain severance pay and change in control benefits to Participants pursuant to the terms and conditions set forth in this Plan. The
payments pursuant to this Plan are in addition to, and not in lieu of, any unpaid salary, bonuses or benefits (other than severance or change in control benefits) to which a Participant may be entitled for the period ending with the
Participant’s Covered Termination. 
 (e) Indebtedness of Participants. If a Participant is indebted to the Company on the
effective date of his or her Covered Termination, the Company reserves the right to offset any severance payments under the Plan by the amount of such indebtedness. 
 (f) Parachute Payments. Except as otherwise provided in an agreement between a Participant and the Company, if any payment or benefit the Participant would receive in connection with a Change in Control
from the Company or otherwise (“Payment”) would (i) constitute a “parachute payment” within the meaning of Section 280G of the Code, and (ii) but for this sentence, be subject to the excise tax
imposed by Section 4999 of the Code (the “Excise Tax”), then such Payment shall be equal to the Reduced Amount. The “Reduced Amount” shall be either (x) the largest portion of the Payment that would result
in no portion of the Payment being subject to the Excise Tax, or (y) the largest portion, up to and including the total, of the Payment, whichever amount, after taking into account all applicable federal, state and local employment taxes,
income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results in the Participant’s receipt of the greatest economic benefit notwithstanding that all or some portion of the Payment may be subject to the Excise
Tax. If a reduction in payments or benefits constituting “parachute payments” is necessary so that the Payment equals the Reduced Amount, reduction shall occur in a manner necessary to provide the Participant with the greatest economic
benefit. If more than one manner of reduction of payments or benefits necessary to arrive at the Reduced Amount yields the greatest economic benefit, the payments and benefits shall be reduced pro rata. 
 SECTION 8. RIGHT TO INTERPRET PLAN; AMENDMENT AND
TERMINATION. 
 (a) Exclusive Discretion. The Plan Administrator shall have the exclusive discretion and
authority to establish rules, forms, and procedures for the administration of the Plan and to construe and interpret the Plan and to decide any and all questions of fact, interpretation, definition, computation or administration arising in
connection with the operation of the Plan, including, but not limited to, the eligibility to participate in the Plan and amount of benefits paid under the Plan. The rules, interpretations, computations and other actions of the Plan Administrator
shall be binding and conclusive on all persons. 
  

 11. 

 (b) Amendment or Termination. The Company reserves the right to amend or terminate this
Plan, any Participation Notice issued pursuant to the Plan or the benefits provided hereunder at any time; provided, however, that (i) no such amendment or termination shall reduce or otherwise adversely affect the severance
benefits provided in Sections 4(a)(i) or 4(c) to a Participant in connection with a Covered Termination that is not a Change in Control Termination, unless such Participant consents in writing to such amendment or termination and (ii) no such
amendment or termination shall occur following the date one (1) month prior to a Change in Control as to any Participant who would be adversely affected by such amendment or termination unless such Participant consents in writing to such
amendment or termination. Any action amending or terminating the Plan or any Participation Notice shall be in writing and executed by a duly authorized officer of the Company. Unless otherwise required by law, no approval of the shareholders of the
Company shall be required for any amendment or termination including any amendment that increases the benefits provided under any option or other stock award. 
 SECTION 9. NO IMPLIED EMPLOYMENT CONTRACT. 
 The Plan shall not
be deemed (i) to give any employee or other person any right to be retained in the employ of the Company or (ii) to interfere with the right of the Company to discharge any employee or other person at any time, with or without cause, which
right is hereby reserved. 
 SECTION 10. LEGAL CONSTRUCTION. 
 This Plan shall be governed by and construed under the laws of the State of California (without regard to principles of conflict of laws), except to the
extent preempted by ERISA. 
 SECTION 11. CLAIMS, INQUIRIES AND APPEALS. 
 (a) Applications for Benefits and Inquiries. Any application for benefits, inquiries about the Plan or inquiries about present or future
rights under the Plan must be submitted to the Plan Administrator in writing by an applicant (or his or her authorized representative). The Plan Administrator is: 
 Exelixis, Inc. 
 Attn: Corporate Secretary 
 249 East Grand Avenue 
 South San Francisco, CA 94080 
 (b) Denial of Claims. In the event that any application for benefits is denied in whole or in part, the Plan Administrator must provide the
applicant with written or electronic notice of the denial of the application, and of the applicant’s right to review the denial. Any electronic notice will comply with the regulations of the U.S. Department of Labor. The notice of denial will
be set forth in a manner designed to be understood by the applicant and will include the following: 
  

	 	(1)	the specific reason or reasons for the denial; 

  

 12. 

	 	(2)	references to the specific Plan provisions upon which the denial is based; 

  

	 	(3)	a description of any additional information or material that the Plan Administrator needs to complete the review and an explanation of why such information or material is necessary;
and 

  

	 	(4)	an explanation of the Plan’s review procedures and the time limits applicable to such procedures, including a statement of the applicant’s right to bring a civil action
under Section 502(a) of ERISA following a denial on review of the claim, as described in Section 11(d) below. 

 This
notice of denial will be given to the applicant within ninety (90) days after the Plan Administrator receives the application, unless special circumstances require an extension of time, in which case, the Plan Administrator has up to an
additional ninety (90) days for processing the application. If an extension of time for processing is required, written notice of the extension will be furnished to the applicant before the end of the initial ninety (90) day period.

 This notice of extension will describe the special circumstances necessitating the additional time and the date by which the Plan
Administrator is to render its decision on the application. 
 (c) Request for a Review. Any person (or that person’s authorized
representative) for whom an application for benefits is denied, in whole or in part, may appeal the denial by submitting a request for a review to the Plan Administrator within sixty (60) days after the application is denied. A request for a
review shall be in writing and shall be addressed to: 
 Exelixis, Inc. 
 Attn: Corporate Secretary 
 249 East Grand Avenue 
 South San Francisco, CA 94080 
 A request for
review must set forth all of the grounds on which it is based, all facts in support of the request and any other matters that the applicant feels are pertinent. The applicant (or his or her representative) shall have the opportunity to submit (or
the Plan Administrator may require the applicant to submit) written comments, documents, records, and other information relating to his or her claim. The applicant (or his or her representative) shall be provided, upon request and free of charge,
reasonable access to, and copies of, all documents, records and other information relevant to his or her claim. The review shall take into account all comments, documents, records and other information submitted by the applicant (or his or her
representative) relating to the claim, without regard to whether such information was submitted or considered in the initial benefit determination. 
 (d) Decision on Review. The Plan Administrator will act on each request for review within sixty (60) days after receipt of the request, unless special circumstances require an extension of time (not to exceed an additional sixty
(60) days), for processing the request for a review. If an extension for review is required, written notice of the extension will be furnished 

  

 13. 

 
to the applicant within the initial sixty (60) day period. This notice of extension will describe the special circumstances necessitating the additional
time and the date by which the Plan Administrator is to render its decision on the review. The Plan Administrator will give prompt, written or electronic notice of its decision to the applicant. Any electronic notice will comply with the regulations
of the U.S. Department of Labor. In the event that the Plan Administrator confirms the denial of the application for benefits in whole or in part, the notice will set forth, in a manner designed to be understood by the applicant, the following:

  

	 	(1)	the specific reason or reasons for the denial; 

  

	 	(2)	references to the specific Plan provisions upon which the denial is based; 

  

	 	(3)	a statement that the applicant is entitled to receive, upon request and free of charge, reasonable access to, and copies of, all documents, records and other information
relevant to his or her claim; and 

  

	 	(4)	a statement of the applicant’s right to bring a civil action under Section 502(a) of ERISA. 

 (e) Rules and Procedures. The Plan Administrator will establish rules and procedures, consistent with the Plan and with ERISA, as necessary and
appropriate in carrying out its responsibilities in reviewing benefit claims. The Plan Administrator may require an applicant who wishes to submit additional information in connection with an appeal from the denial of benefits to do so at the
applicant’s own expense. 
 (f) Exhaustion of Remedies. No legal action for benefits under the Plan may be brought until the
applicant (i) has submitted a written application for benefits in accordance with the procedures described by Section 11(a) above, (ii) has been notified by the Plan Administrator that the application is denied, (iii) has filed a
written request for a review of the application in accordance with the appeal procedure described in Section 11(c) above, and (iv) has been notified that the Plan Administrator has denied the appeal. Notwithstanding the foregoing, if the
Plan Administrator does not respond to an applicant’s claim or appeal within the relevant time limits specified in this Section 11, the applicant may bring legal action for benefits under the Plan pursuant to Section 502(a) of ERISA.

 SECTION 12. BASIS OF PAYMENTS TO AND FROM
PLAN. 
 All benefits under the Plan shall be paid by the Company. The Plan shall be unfunded, and benefits hereunder shall
be paid only from the general assets of the Company. 
 SECTION 13. OTHER PLAN INFORMATION. 

(a) Employer and Plan Identification Numbers. The Employer Identification Number assigned to the Company (which is the “Plan
Sponsor” as that term is used in ERISA) by the Internal Revenue Service is 04-3257395. The Plan Number assigned to the Plan by the Plan Sponsor pursuant to the instructions of the Internal Revenue Service is 507. 
  

 14. 

 (b) Ending Date for Plan’s Fiscal Year. The date of the end of the fiscal year for the
purpose of maintaining the Plan’s records is December 31. 
 (c) Agent for the Service of Legal Process. The
agent for the service of legal process with respect to the Plan is: 
 Exelixis, Inc. 
 Attn: Corporate Secretary 
 249 East Grand Avenue 
 South San Francisco, CA 94080 
 (d)
Plan Sponsor and Administrator. The “Plan Sponsor” and the “Plan Administrator” of the Plan is: 
 Exelixis, Inc.

 Attn: Corporate Secretary 
 249
East Grand Avenue 
 South San Francisco, CA 94080 
 The Plan Sponsor’s and Plan Administrator’s telephone number is (650) 837-7000. The Plan Administrator is the named fiduciary charged with the responsibility for administering the Plan. 
 SECTION 14. STATEMENT OF ERISA RIGHTS. 
 Participants in this Plan (which is a welfare benefit plan sponsored by Exelixis, Inc.) are entitled to certain rights and protections under ERISA. If you are a Participant, you are considered a participant in the
Plan for the purposes of this Section 14 and, under ERISA, you are entitled to: 
 Receive Information About Your Plan and Benefits 

(a) Examine, without charge, at the Plan Administrator’s office and at other specified locations, such as worksites, all documents
governing the Plan and a copy of the latest annual report (Form 5500 Series), if applicable, filed by the Plan with the U.S. Department of Labor and available at the Public Disclosure Room of the Employee Benefits Security Administration;

 (b) Obtain, upon written request to the Plan Administrator, copies of documents governing the operation of the Plan and copies of
the latest annual report (Form 5500 Series), if applicable, and an updated (as necessary) Summary Plan Description. The Administrator may make a reasonable charge for the copies; and 
 (c) Receive a summary of the Plan’s annual financial report, if applicable. The Plan Administrator is required by law to furnish each
participant with a copy of this summary annual report. 
  

 15. 

 Prudent Actions By Plan Fiduciaries 
 In addition to creating rights for Plan participants, ERISA imposes duties upon the people who are responsible for the operation of the employee benefit plan. The people who operate the Plan, called
“fiduciaries” of the Plan, have a duty to do so prudently and in the interest of you and other Plan participants and beneficiaries. No one, including your employer, your union or any other person, may fire you or otherwise discriminate
against you in any way to prevent you from obtaining a Plan benefit or exercising your rights under ERISA. 
 Enforce Your Rights 
 If your claim for a Plan benefit is denied or ignored, in whole or in part, you have a right to know why this was done, to obtain copies of documents
relating to the decision without charge, and to appeal any denial, all within certain time schedules. 
 Under ERISA, there are steps you can
take to enforce the above rights. For instance, if you request a copy of Plan documents or the latest annual report from the Plan, if applicable, and do not receive them within thirty (30) days, you may file suit in a Federal court. In such a
case, the court may require the Plan Administrator to provide the materials and pay you up to $110 a day until you receive the materials, unless the materials were not sent because of reasons beyond the control of the Plan Administrator. 

If you have a claim for benefits which is denied or ignored, in whole or in part, you may file suit in a state or Federal court. 
 If you are discriminated against for asserting your rights, you may seek assistance from the U.S. Department of Labor, or you may file suit in a Federal
court. The court will decide who should pay court costs and legal fees. If you are successful, the court may order the person you have sued to pay these costs and fees. If you lose, the court may order you to pay these costs and fees, for example,
if it finds your claim is frivolous. 
 Assistance With Your Questions 
 If you have any questions about the Plan, you should contact the Plan Administrator. If you have any questions about this statement or about your rights under ERISA, or if you need assistance in obtaining documents
from the Plan Administrator, you should contact the nearest office of the Employee Benefits Security Administration, U.S. Department of Labor, listed in your telephone directory or the Division of Technical Assistance and Inquiries, Employee
Benefits Security Administration, U.S. Department of Labor, 200 Constitution Avenue N.W., Washington, D.C. 20210. You may also obtain certain publications about your rights and responsibilities under ERISA by calling the publications hotline of the
Employee Benefits Security Administration. 
 SECTION 15. GENERAL PROVISIONS. 
 (a) Notices. Any notice, demand or request required or permitted to be given by either the Company or a Participant pursuant to the terms of
this Plan shall be in writing and shall be deemed given when delivered personally or deposited in the U.S. mail, First Class with postage prepaid, and addressed to the parties, in the case of the Company, at the address set forth in
Section 11(a) and, in the case of a Participant, at the address as set forth in the Company’s employment file maintained for the Participant as previously furnished by the Participant or such other address as a party may request by
notifying the other in writing. 
  

 16. 

 (b) Transfer and Assignment. The rights and obligations of a Participant under this Plan
may not be transferred or assigned without the prior written consent of the Company. This Plan shall be binding upon any surviving entity resulting from a Change in Control and upon any other person who is a successor by merger, acquisition,
consolidation or otherwise to the business formerly carried on by the Company without regard to whether or not such person or entity actively assumes the obligations hereunder. 
 (c) Waiver and Costs of Enforcement. Any party’s failure to enforce any provision or provisions of this Plan shall not in any way be
construed as a waiver of any such provision or provisions, nor prevent any party from thereafter enforcing each and every other provision of this Plan. The rights granted to the parties herein are cumulative and shall not constitute a waiver of any
party’s right to assert all other legal remedies available to it under the circumstances. All out-of-pocket costs and expenses reasonably incurred by a Participant (including attorneys’ fees) in connection with enforcing the
Participant’s rights under the Plan (including the costs and expenses of complying with the provisions of Section 11) shall be paid by the Company if such rights relate to a Covered Termination that occurs any time after the date that is
one (1) month prior to the effective date of the first Change in Control that occurs after the Participant commences participation in the Plan. Notwithstanding the foregoing, if the Participant initiates any claim or action and the claim or
action is totally without merit or frivolous, the Participant shall be responsible for the Participant’s own costs and expenses. 
 (d) Severability. Should any provision of this Plan be declared or determined to be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or
impaired. 
 (e) Section Headings. Section headings in this Plan are included for convenience of reference only and shall not
be considered part of this Plan for any other purpose. 
 SECTION 16. EXECUTION. 
 To record the adoption of the Plan as set forth herein, Exelixis, Inc. has caused its duly authorized officer to execute the same as of the Effective
Date. 
  

			
	EXELIXIS, INC.
		
	By:	 	/s/ James B. Bucher
		
	Title:	 	Vice President, Corporate Legal Affairs and Secretary

  

 17. 

 EXHIBIT A 
 EXELIXIS, INC. 
 CHANGE IN CONTROL AND SEVERANCE BENEFIT PLAN 

PARTICIPATION NOTICE 
  

			
	To:	 	 
		
	Date:	 	 

 Exelixis, Inc. (the “Company”) has adopted the Exelixis, Inc. Change in
Control and Severance Benefit Plan (the “Plan”). The Company is providing you with this Participation Notice to inform you that you have been designated as a Participant in the Plan. A copy of the Plan document is attached to
this Participation Notice. The terms and conditions of your participation in the Plan are as set forth in the Plan and this Participation Notice, which together also constitute a summary plan description of the Plan. 
 For the purposes of the Plan you [_] are an Executive Participant [_] are not an Executive Participant. 
 Except as provided in the Plan, the Plan supersedes any and all severance or change in control benefits payable to you as set forth in any agreement,
including offer letters, with the Company entered into prior to the date hereof. 
  

					
	Notwithstanding the terms of the Plan:	 	
			
	[	 	 	 	
			
		 	 	 	]

 Please return to the Company’s Corporate Secretary a copy of this Participation Notice signed
by you and retain a copy of this Participation Notice, along with the Plan document, for your records. 
  

			
	EXELIXIS, INC.
		
	By:	 	 
		
	Its:	 	 

  

 18. 

 ACKNOWLEDGEMENT 
 The undersigned Participant hereby acknowledges receipt of the foregoing Participation Notice. In the event the undersigned holds outstanding stock options as of the date of this Participation Notice, the undersigned
hereby:* 
  

					
	 ̈	  	accepts all of the benefits of Section 4(b) of the Plan regardless of any potential adverse effects on any outstanding option or other stock award
		
	 ̈	  	accepts the benefits of Section 4(b) of the Plan that have no adverse effect on outstanding options or other stock awards and rejects the benefits of Section 4(b) of the
Plan as to those outstanding options and other stock awards that would have potential adverse effects
			
	 ̈	  	other (please describe):	  	 
			
		  	 	  	 
			
		  	 	  	 
			
		  	 	  	 
			
		  	 	  	 

 The undersigned acknowledges that the undersigned has been advised to obtain tax and financial advice regarding
the consequences of this election including the effect, if any, on the status of the stock options for tax purposes under Section 422 of the Internal Revenue Code. 
  

	
	  
	  
	Print name

  

	*	Please check one box; failure to check a box will be deemed the selection of the second alternative (i.e., accepting the benefits of Section 4(b) of the Plan that have
no adverse effect on outstanding options or other stock awards and rejecting the benefits of Section 4(b) of the Plan as to those outstanding options and other stock awards that would have potential adverse effects). 

 

 19. 

 For Employees Age 40 or Older 
 Individual Termination 
 EXHIBIT B 
 RELEASE AGREEMENT 
 I understand
and agree completely to the terms set forth in the Exelixis, Inc. Change in Control and Severance Benefit Plan (the “Plan”). 
 I understand that this Release, together with the Plan, constitutes the complete, final and exclusive embodiment of the entire agreement between the Company, affiliates of the Company and me with regard to the subject
matter hereof. I am not relying on any promise or representation by the Company or an affiliate of the Company that is not expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my obligations under the Company’s Employee Proprietary Information and Inventions Agreement. 
 Except as otherwise set forth in this Release, I hereby generally and completely release the Company and its affiliates, and their parents, subsidiaries,
successors, predecessors and affiliates, and their partners, members, directors, officers, employees, stockholders, shareholders, agents, attorneys, predecessors, insurers, affiliates and assigns, from any and all claims, liabilities and
obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct, or omissions occurring at any time prior to and including the date I sign this Release. This general release includes, but is not limited to:
(a) all claims arising out of or in any way related to my employment with the Company and its affiliates, or their affiliates, or the termination of that employment; (b) all claims related to my compensation or benefits, including salary,
bonuses, commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options, or any other ownership interests in the Company and its affiliates, or their affiliates; (c) all claims for breach of contract,
wrongful termination, and breach of the implied covenant of good faith and fair dealing; (d) all tort claims, including claims for fraud, defamation, emotional distress, and discharge in violation of public policy; and (e) all federal,
state, and local statutory claims, including claims for discrimination, harassment, retaliation, attorneys’ fees, or other claims arising under the federal Civil Rights Act of 1964 (as amended), the federal Americans with Disabilities Act of
1990 (as amended), the federal Age Discrimination in Employment Act (as amended) (“ADEA”), the federal Employee Retirement Income Security Act of 1974 (as amended), and the California Fair Employment and Housing Act (as
amended). 
 Notwithstanding the foregoing, I understand that the following rights or claims are not included in my Release: (a) any
rights or claims for indemnification I may have pursuant to any written indemnification agreement with the Company or its affiliate to which I am a party; the charter, bylaws, or operating agreements of the Company or its affiliate; or under
applicable law; or (b) any rights which cannot be waived as a matter of law. In addition, I understand that nothing in this Agreement prevents me from filing, cooperating with, or participating in any proceeding before the Equal Employment
Opportunity Commission, the Department of Labor, or the California Department of Fair Employment and Housing, except that I hereby waive my right to any monetary benefits in connection with any such claim, charge or proceeding. I hereby represent
and warrant that, other than the claims identified in this paragraph, I am not aware of any claims I have or might have that are not included in the Release. 
  

 1. 

 For Employees Age 40 or Older 
 Individual Termination 
 I acknowledge that I am knowingly and voluntarily waiving and releasing any rights
I may have under the ADEA, and that the consideration given under the Plan for the waiver and release in the preceding paragraph hereof is in addition to anything of value to which I was already entitled. I further acknowledge that I have been
advised by this writing, as required by the ADEA, that: (a) my waiver and release do not apply to any rights or claims that may arise after the date I sign this Release; (b) I should consult with an attorney prior to signing this Release
(although I may choose voluntarily not do so); (c) I have twenty-one (21) days to consider this Release (although I may choose voluntarily to sign this Release earlier); (d) I have seven (7) days following the date I sign this
Release to revoke the Release by providing written notice to an officer of the Company; and (e) this Release shall not be effective until the date upon which the revocation period has expired, which shall be the eighth day after I sign this
Release. 
 I acknowledge that I have read and understand Section 1542 of the California Civil Code which reads as follows: “A
general release does not extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing the release, which if known by him or her must have materially affected his or her settlement with the
debtor.” I hereby expressly waive and relinquish all rights and benefits under that section and any law of any jurisdiction of similar effect with respect to my release of any claims hereunder. 
 I hereby represent that I have been paid all compensation owed and for all hours worked; I have received all the leave and leave benefits and protections
for which I am eligible pursuant to the Family and Medical Leave Act, the California Family Rights Act, or otherwise; and I have not suffered any on-the-job injury for which I have not already filed a workers’ compensation claim. 
 I acknowledge that to become effective, I must sign and return this Release to the Company so that it is received not later than twenty-one
(21) days following the date it is provided to me. 
  

			
	EMPLOYEE
		
	Name:	 	 
		
	Date:	 	 

  

 2. 

 For Employees Age 40 or Older 
 Group Termination 
 EXHIBIT C 
 RELEASE AGREEMENT 
 I understand and agree completely to the terms set forth
in the Exelixis, Inc. Change in Control and Severance Benefit Plan (the “Plan”). 
 I understand that this
Release, together with the Plan, constitutes the complete, final and exclusive embodiment of the entire agreement between the Company, affiliates of the Company and me with regard to the subject matter hereof. I am not relying on any promise or
representation by the Company or an affiliate of the Company that is not expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my obligations under the Company’s Employee Proprietary Information and Inventions Agreement. 
 Except as otherwise set forth in this Release, I hereby generally and completely release the Company and its affiliates, and their parents, subsidiaries, successors, predecessors and affiliates, and its and their partners, members,
directors, officers, employees, stockholders, shareholders, agents, attorneys, predecessors, insurers, affiliates and assigns, from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related
to events, acts, conduct, or omissions occurring at any time prior to and including the date I sign this Release. This general release includes, but is not limited to: (a) all claims arising out of or in any way related to my employment with
the Company and its affiliates, or their affiliates, or the termination of that employment; (b) all claims related to my compensation or benefits, including salary, bonuses, commissions, vacation pay, expense reimbursements, severance pay,
fringe benefits, stock, stock options, or any other ownership interests in the Company and its affiliates, or their affiliates; (c) all claims for breach of contract, wrongful termination, and breach of the implied covenant of good faith and
fair dealing; (d) all tort claims, including claims for fraud, defamation, emotional distress, and discharge in violation of public policy; and (e) all federal, state, and local statutory claims, including claims for discrimination,
harassment, retaliation, attorneys’ fees, or other claims arising under the federal Civil Rights Act of 1964 (as amended), the federal Americans with Disabilities Act of 1990 (as amended), the federal Age Discrimination in Employment Act (as
amended) (“ADEA”), the federal Employee Retirement Income Security Act of 1974 (as amended), and the California Fair Employment and Housing Act (as amended). 
 Notwithstanding the foregoing, I understand that the following rights or claims are not included in my Release: (a) any rights or claims for
indemnification I may have pursuant to any written indemnification agreement with the Company or its affiliate to which I am a party; the charter, bylaws, or operating agreements of the Company or its affiliate; or under applicable law; or
(b) any rights which cannot be waived as a matter of law. In addition, I understand that nothing in this Agreement prevents me from filing, cooperating with, or participating in any proceeding before the Equal Employment Opportunity Commission,
the Department of Labor, or the California Department of Fair Employment and Housing, except that I hereby waive my right to any monetary benefits in connection with any such claim, charge or proceeding. I hereby represent and warrant that, other
than the claims identified in this paragraph, I am not aware of any claims I have or might have that are not included in the Release. 
  

 1. 

 For Employees Age 40 or Older 
 Group Termination 
 I acknowledge that I am knowingly and voluntarily waiving and releasing any rights I may
have under the ADEA, and that the consideration given under the Plan for the waiver and release in the preceding paragraph hereof is in addition to anything of value to which I was already entitled. I further acknowledge that I have been advised by
this writing, as required by the ADEA, that: (a) my waiver and release do not apply to any rights or claims that may arise after the date I sign this Release; (b) I should consult with an attorney prior to signing this Release (although I
may choose voluntarily not to do so); (c) I have forty-five (45) days to consider this Release (although I may choose voluntarily to sign this Release earlier); (d) I have seven (7) days following the date I sign this Release to
revoke the Release by providing written notice to an office of the Company; (e) this Release shall not be effective until the date upon which the revocation period has expired, which shall be the eighth day after I sign this Release; and
(f) I have received with this Release a detailed list of the job titles and ages of all employees who were terminated in this group termination and the ages of all employees of the Company in the same job classification or organizational unit
who were not terminated. 
 I acknowledge that I have read and understand Section 1542 of the California Civil Code which reads as
follows: “A general release does not extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing the release, which if known by him or her must have materially affected his or her
settlement with the debtor.” I hereby expressly waive and relinquish all rights and benefits under that section and any law of any jurisdiction of similar effect with respect to my release of any claims hereunder. 
 I hereby represent that I have been paid all compensation owed and for all hours worked; I have received all the leave and leave benefits and protections
for which I am eligible pursuant to the Family and Medical Leave Act, the California Family Rights Act, or otherwise; and I have not suffered any on-the-job injury for which I have not already filed a workers’ compensation claim. 
 I acknowledge that to become effective, I must sign and return this Release to the Company so that it is received not later than forty-five
(45) days following the date it is provided to me. 
  

			
	EMPLOYEE
		
	Name:	 	 
		
	Date:	 	 

  

 2. 

 EXHIBIT D 
 RELEASE AGREEMENT 
 I understand and agree completely to the terms set forth
in the Exelixis, Inc. Change in Control and Severance Benefit Plan (the “Plan”). 
 I understand that this
Release, together with the Plan, constitutes the complete, final and exclusive embodiment of the entire agreement between the Company, affiliates of the Company and me with regard to the subject matter hereof. I am not relying on any promise or
representation by the Company or an affiliate of the Company that is not expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my obligations under the Company’s Employee Proprietary Information and Inventions Agreement. 
 Except as otherwise set forth in this Release, I hereby generally and completely release the Company and its affiliates, and their parents, subsidiaries, successors, predecessors and affiliates, and its and their partners, members,
directors, officers, employees, stockholders, shareholders, agents, attorneys, predecessors, insurers, affiliates and assigns, from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related
to events, acts, conduct, or omissions occurring at any time prior to and including the date I sign this Release. This general release includes, but is not limited to: (a) all claims arising out of or in any way related to my employment with
the Company and its affiliates, or their affiliates, or the termination of that employment; (b) all claims related to my compensation or benefits, including salary, bonuses, commissions, vacation pay, expense reimbursements, severance pay,
fringe benefits, stock, stock options, or any other ownership interests in the Company and its affiliates, or their affiliates; (c) all claims for breach of contract, wrongful termination, and breach of the implied covenant of good faith and
fair dealing; (d) all tort claims, including claims for fraud, defamation, emotional distress, and discharge in violation of public policy; and (e) all federal, state, and local statutory claims, including claims for discrimination,
harassment, retaliation, attorneys’ fees, or other claims arising under the federal Civil Rights Act of 1964 (as amended), the federal Americans with Disabilities Act of 1990 (as amended), the federal Employee Retirement Income Security Act of
1974 (as amended), and the California Fair Employment and Housing Act (as amended). 
 Notwithstanding the foregoing, I understand that the
following rights or claims are not included in my Release: (a) any rights or claims for indemnification I may have pursuant to any written indemnification agreement with the Company or its affiliate to which I am a party; the charter, bylaws,
or operating agreements of the Company or its affiliate; or under applicable law; or (b) any rights which cannot be waived as a matter of law. In addition, I understand that nothing in this Agreement prevents me from filing, cooperating with,
or participating in any proceeding before the Equal Employment Opportunity Commission, the Department of Labor, or the California Department of Fair Employment and Housing, except that I hereby waive my right to any monetary benefits in connection
with any such claim, charge or proceeding. I hereby represent and warrant that, other than the claims identified in this paragraph, I am not aware of any claims I have or might have that are not included in the Release. 
  

 1. 

 For Employees Under Age 40 
 Individual and Group Termination 
 I acknowledge that I have read and understand Section 1542 of the
California Civil Code which reads as follows: “A general release does not extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing the release, which if known by him or her must have
materially affected his or her settlement with the debtor.” I hereby expressly waive and relinquish all rights and benefits under that section and any law of any jurisdiction of similar effect with respect to my release of any claims
hereunder. 
 I hereby represent that I have been paid all compensation owed and for all hours worked; I have received all the leave and
leave benefits and protections for which I am eligible pursuant to the Family and Medical Leave Act, the California Family Rights Act, or otherwise; and I have not suffered any on-the-job injury for which I have not already filed a workers’
compensation claim. 
 I acknowledge that to become effective, I must sign and return this Release to the Company so that it is received not
later than fourteen (14) days following the date it is provided to me. 
  

			
	EMPLOYEE
		
	Name:	 	 
		
	Date:	 	 

  

 2.

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