EXEL

SEC source: 0000939767-17-000113 · wf-form4_149584620186199.xml · nonDerivative · entry 1

WYSZOMIERSKI JACK L · CIK 0001023225 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,803

F1 · security: Represents shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units. Each restricted stock unit is the economic equivalent of one share of Exelixis, Inc. common stock.

F2 · date: The restricted stock units were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The restricted stock units will vest as to 100% of the shares subject to the restricted stock unit award on May 25, 2018, subject to the Reporting Person's continuous service through such date.

F3 · balance_after: Includes 5.843 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000111 · wf-form4_149584610002009.xml · derivative · entry 2

MARCHESI VINCENT T · CIK 0001202095 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,686

Underlying: Common Stock · 11,686 shares

Expires 2024-05-24

F4 · derivative.exercise_date: Option granted pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The option is exercisable immediately, subject to repurchase provisions, and will vest as to 1/12th of the shares subject to the option each month following the date of grant, subject to the Reporting Person's continuous service through such dates.

SEC source: 0000939767-17-000111 · wf-form4_149584610002009.xml · nonDerivative · entry 1

MARCHESI VINCENT T · CIK 0001202095 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,913

F1 · security: Represents shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units. Each restricted stock unit is the economic equivalent of one share of Exelixis, Inc. common stock.

F2 · date: The restricted stock units were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The restricted stock units will vest as to 100% of the sharessubject to the restricted stock unit award on May 25, 2018, subject to the Reporting Person's continuous service through such date.

F3 · balance_after: Includes 5.843 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000109 · wf-form4_149584598827096.xml · derivative · entry 1

WILLSEY LANCE · CIK 0001202106 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,491

Underlying: Common Stock · 23,491 shares

Expires 2024-05-24

F1 · derivative.exercise_date: Option granted pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The option is exercisable immediately, subject to repurchase provisions, and will vest as to 1/12th of the shares subject to the option each month following the date of grant, subject to the Reporting Person's continuous service through such dates.

SEC source: 0000939767-17-000110 · wf-form4_149584603869354.xml · derivative · entry 1

Garber Alan M · CIK 0001312907 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,491

Underlying: Common Stock · 23,491 shares

Expires 2024-05-24

F1 · derivative.exercise_date: Option granted pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The option is exercisable immediately, subject to repurchase provisions, and will vest as to 1/12th of the shares subject to the option each month following the date of grant, subject to the Reporting Person's continuous service through such dates.

SEC source: 0000939767-17-000108 · wf-form4_149584592558776.xml · derivative · entry 1

COHEN CHARLES · CIK 0001202089 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,491

Underlying: Common Stock · 23,491 shares

Expires 2024-05-24

F1 · derivative.exercise_date: Option granted pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The option is exercisable immediately, subject to repurchase provisions, and will vest as to 1/12th of the shares subject to the option each month following the date of grant, subject to the Reporting Person's continuous service through such dates.

SEC source: 0000939767-17-000120 · wf-form4a_149618852186498.xml · derivative · entry 3

PAPADOPOULOS STELIOS · CIK 0001202098 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,686

Underlying: Common Stock · 11,686 shares

Expires 2024-05-24

F5 · derivative.exercise_date: Option granted pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The option is exercisable immediately, subject to repurchase provisions, and will vest as to 1/12th of the shares subject to the option each month following the date of grant, subject to the Reporting Person's continuous service through such dates.

SEC source: 0000939767-17-000120 · wf-form4a_149618852186498.xml · nonDerivative · entry 1

PAPADOPOULOS STELIOS · CIK 0001202098 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,234,314

F1 · security: Represents shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units. Each restricted stock unit is the economic equivalent of one share of Exelixis, Inc. common stock.

F2 · date: The restricted stock units were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The restricted stock units will vest as to 100% of the shares subject to the restricted stock unit award on May 25, 2018, subject to the Reporting Person's continuous service through such date.

F3 · balance_after: Includes 5.843 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000087 · wf-form4_149498359731409.xml · derivative · entry 6

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 15,000 shares

Expires 2018-05-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The option, representing the right to purchase a total of 15,000 shares of Exelixis, Inc. common stock, became fully exercisable on May 2, 2008.

SEC source: 0000939767-17-000087 · wf-form4_149498359731409.xml · derivative · entry 5

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,000

Underlying: Common Stock · 4,000 shares

Expires 2018-05-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The option, representing the right to purchase a total of 15,000 shares of Exelixis, Inc. common stock, became fully exercisable on May 19, 2011.

SEC source: 0000939767-17-000087 · wf-form4_149498359731409.xml · nonDerivative · entry 4

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,733

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.58 to $21.60. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 2 to this Form 4.

SEC source: 0000939767-17-000087 · wf-form4_149498359731409.xml · nonDerivative · entry 3

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,721

F1 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.56 to $21.58. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 1 to this Form 4.

SEC source: 0000939767-17-000087 · wf-form4_149498359731409.xml · nonDerivative · entry 2

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,721

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000087 · wf-form4_149498359731409.xml · nonDerivative · entry 1

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,721

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000086 · wf-form4_149498353176730.xml · derivative · entry 3

Schwab Gisela · CIK 0001213140 · Pres Prod Dev & Med Aff & CMO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,499

Underlying: Common Stock · 12,501 shares

Expires 2018-12-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The option, representing the right to purchase a total of 50,000 shares of Exelixis, Inc. common stock, became fully exercisable on December 16, 2012.

SEC source: 0000939767-17-000086 · wf-form4_149498353176730.xml · nonDerivative · entry 1

Schwab Gisela · CIK 0001213140 · Pres Prod Dev & Med Aff & CMO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,005

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 2, 2017.

F2 · balance_after: Includes 20,000 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · derivative · entry 16

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,104,551

Underlying: Common Stock · 20,449 shares

Expires 2021-09-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_date: The option, representing the right to purchase a total of 1,125,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · derivative · entry 15

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 79,551 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 9

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F5 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $22.00 to $22.15. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 5 to this Form 4.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 8

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 160,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 7

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 139,551

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · derivative · entry 14

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,551

Underlying: Common Stock · 48,786 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · derivative · entry 13

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,337

Underlying: Common Stock · 51,214 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 6

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F4 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.60 to $21.61. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 4 to this Form 4.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 5

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,786

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 4

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.75 to $21.80. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 3 to this Form 4.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 3

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 111,214

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · derivative · entry 12

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 179,551

Underlying: Common Stock · 11,300 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 2

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.80 to $21.84. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 2 to this Form 4.

SEC source: 0000939767-17-000079 · wf-form4_149446125113476.xml · nonDerivative · entry 1

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,300

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 60,000 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · derivative · entry 17

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 190,851

Underlying: Common Stock · 10,445 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · derivative · entry 16

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 201,296

Underlying: Common Stock · 89,555 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 10

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F5 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.65 to $21.66. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 5 to this Form 4.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 9

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,445

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 8

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F4 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.85 to $21.93. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 4 to this Form 4.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 7

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 149,555

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · derivative · entry 15

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 290,851

Underlying: Common Stock · 59,149 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 6

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $22.15 to $22.20. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 3 to this Form 4.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 5

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,149

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · derivative · entry 14

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 350,000

Underlying: Common Stock · 30,573 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · derivative · entry 13

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 380,573

Underlying: Common Stock · 69,427 shares

Expires 2022-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: The option, representing the right to purchase a total of 450,000 shares of Exelixis, Inc. common stock, became exercisable as to fifty percent (50%) of the shares subject to the option on July 20, 2015, as to twenty-five (25%) of the shares subject to the option on March 7, 2016 and as to the remaining twenty-five (25%) of the shares subject to the option on April 28, 2016.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 4

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 3

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,573

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 2

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $22.70 to $22.79. Reporting Person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 2 to this Form 4.

SEC source: 0000939767-17-000075 · wf-form4_149402477019630.xml · nonDerivative · entry 1

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,427

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 60,000 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000073 · wf-form4_149385612111738.xml · derivative · entry 5

Schwab Gisela · CIK 0001213140 · Pres Prod Dev & Med Aff & CMO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Stock · 89,910 shares

Expires 2017-12-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: The option, representing the right to purchase a total of 200,000 shares of Exelixis, Inc. common stock, became fully exercisable on December 6, 2011.

SEC source: 0000939767-17-000073 · wf-form4_149385612111738.xml · nonDerivative · entry 3

Schwab Gisela · CIK 0001213140 · Pres Prod Dev & Med Aff & CMO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,504

F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 2, 2017.

F4 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $23.24 to $23.37. Reporting person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 4 to this Form 4.

SEC source: 0000939767-17-000073 · wf-form4_149385612111738.xml · nonDerivative · entry 2

Schwab Gisela · CIK 0001213140 · Pres Prod Dev & Med Aff & CMO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 172,404

F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 2, 2017.

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $22.23 to $23.21. Reporting person undertakes to provide Exelixis, Inc., any security holder of Exelixis, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 3 to this Form 4.

SEC source: 0000939767-17-000073 · wf-form4_149385612111738.xml · nonDerivative · entry 1

Schwab Gisela · CIK 0001213140 · Pres Prod Dev & Med Aff & CMO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,414

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 20,000 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units and 2,361 shares of common stock acquired on April 28, 2017, pursuant to the Exelixis, Inc. 2000 Employee Stock Purchase Plan.

SEC source: 0000939767-17-000063 · wf-form4_149255983275104.xml · derivative · entry 3

Schwab Gisela · CIK 0001213140 · Pres Prod Dev & Med Aff & CMO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,910

Underlying: Common Stock · 10,090 shares

Expires 2017-12-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The option, representing the right to purchase a total of 200,000 shares of Exelixis, Inc. common stock, became fully exercisable on December 6, 2011.