EXEL

SEC source: 0000939767-17-000023 · wf-form4_148859021275410.xml · nonDerivative · entry 6

POSTE GEORGE · CIK 0001180770 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,955

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: 0000939767-17-000023 · wf-form4_148859021275410.xml · nonDerivative · entry 5

POSTE GEORGE · CIK 0001180770 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,955

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: 0000939767-17-000023 · wf-form4_148859021275410.xml · nonDerivative · entry 4

POSTE GEORGE · CIK 0001180770 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,705

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: 0000939767-17-000023 · wf-form4_148859021275410.xml · nonDerivative · entry 3

POSTE GEORGE · CIK 0001180770 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,705

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: 0000939767-17-000024 · wf-form4_148859029011615.xml · derivative · entry 6

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,000 shares

Expires 2019-12-14

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 25,000 shares of Exelixis, Inc. common stock, became fully exercisable on December 15, 2013.

SEC source: 0000939767-17-000024 · wf-form4_148859029011615.xml · derivative · entry 5

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 shares

Expires 2019-12-08

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.

F5 · derivative.exercise_date: The option, representing the right to purchase a total of 75,000 shares of Exelixis, Inc. common stock, became fully exercisable on December 9, 2013.

SEC source: 0000939767-17-000024 · wf-form4_148859029011615.xml · nonDerivative · entry 3

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,600

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 September 27, 2016.

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $21.76 to $22.59. 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: 0000939767-17-000024 · wf-form4_148859029011615.xml · nonDerivative · entry 2

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,600

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: 0000939767-17-000024 · wf-form4_148859029011615.xml · nonDerivative · entry 1

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 93,600

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 16,250 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000023 · wf-form4_148859021275410.xml · derivative · entry 8

POSTE GEORGE · CIK 0001180770 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,150

Underlying: Common Stock · 8,850 shares

Expires 2017-05-01

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.

F3 · derivative.exercise_date: The option, representing the right to purchase a total of 10,000 shares of Exelixis, Inc. common stock, became fully exercisable on May 2, 2007.

SEC source: 0000939767-17-000023 · wf-form4_148859021275410.xml · nonDerivative · entry 2

POSTE GEORGE · CIK 0001180770 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,555

F1 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $22.15 to $22.24. 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: 0000939767-17-000023 · wf-form4_148859021275410.xml · nonDerivative · entry 1

POSTE GEORGE · CIK 0001180770 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,405

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: 0000939767-17-000014 · wf-form4_148798801033982.xml · derivative · entry 1

Smith Julie · CIK 0001557928 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,620

Underlying: Common Stock · 16,620 shares

Expires 2024-02-22

F1 · derivative.exercise_date: Option granted pursuant to the 2014 Plan. Option will vest as to 1/4th of the original number of shares subject to the option on the one-year anniversary of the Transaction Date, and thereafter as to 1/48th of the original number of shares subject to the option on each monthly anniversary of the Transaction Date.

SEC source: 0000939767-17-000009 · wf-form4_148616972085353.xml · derivative · entry 6

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 55,000 shares

Expires 2019-12-08

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 75,000 shares of Exelixis, Inc. common stock, became fully exercisable on December 9, 2013.

SEC source: 0000939767-17-000009 · wf-form4_148616972085353.xml · derivative · entry 5

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 15,000 shares

Expires 2019-08-31

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.

F5 · derivative.exercise_date: The option, representing the right to purchase a total of 75,000 shares of Exelixis, Inc. common stock, became fully exercisable on September 1, 2013.

SEC source: 0000939767-17-000009 · wf-form4_148616972085353.xml · nonDerivative · entry 3

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,600

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 September 27, 2016.

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $18.23 to $18.92. 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: 0000939767-17-000009 · wf-form4_148616972085353.xml · nonDerivative · entry 2

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,600

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: 0000939767-17-000009 · wf-form4_148616972085353.xml · nonDerivative · entry 1

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,600

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 16,250 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000003 · wf-form4_148366589849602.xml · derivative · entry 7

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 60,000 shares

Expires 2019-08-31

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.

F7 · derivative.exercise_date: The option, representing the right to purchase a total of 75,000 shares of Exelixis, Inc. common stock, became fully exercisable on September 1, 2013.

SEC source: 0000939767-17-000003 · wf-form4_148366589849602.xml · derivative · entry 6

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2019-02-25

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 25,000 shares of Exelixis, Inc. common stock, became fully exercisable on February 26, 2013.

SEC source: 0000939767-17-000003 · wf-form4_148366589849602.xml · nonDerivative · entry 4

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,600

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 September 27, 2016.

F4 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $15.24 to $15.32. 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: 0000939767-17-000003 · wf-form4_148366589849602.xml · nonDerivative · entry 3

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 76,000

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 September 27, 2016.

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $14.24 to $15.23. 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: 0000939767-17-000003 · wf-form4_148366589849602.xml · nonDerivative · entry 2

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,600

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: 0000939767-17-000003 · wf-form4_148366589849602.xml · nonDerivative · entry 1

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,600

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 16,250 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-17-000010 · wf-form5_148616979502647.xml · nonDerivative · entry 2

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 172,698

F1 · ownership.nature: Shares held by Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July 21, 1994, as amended.

SEC source: 0000939767-17-000010 · wf-form5_148616979502647.xml · nonDerivative · entry 1

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 173,698

F1 · ownership.nature: Shares held by Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July 21, 1994, as amended.

SEC source: 0000939767-16-000300 · wf-form4_148237094516361.xml · derivative · entry 1

Haley Patrick J. · CIK 0001692954 · Sr. Vice President, Commercial

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2023-12-18

F1 · derivative.exercise_date: Option granted pursuant to the Exelixis, Inc. 2014 Equity Incentive Plan. Option granted will vest as to 1/4th of the original number of shares subject to the option on the one-year anniversary of the Transaction Date, and thereafter as to 1/48th of the original number of shares subject to the option on each monthly anniversary of the Transaction Date.

SEC source: 0000939767-16-000292 · wf-form4_148193452746206.xml · derivative · entry 3

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,000 shares

Expires 2017-02-07

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 25,000 shares of Exelixis, Inc. common stock, was exercisable immediately upon grant and became fully vested on February 8, 2011.

SEC source: 0000939767-16-000292 · wf-form4_148193452746206.xml · nonDerivative · entry 2

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,721

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $17.02 to $17.08. 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: 0000939767-16-000292 · wf-form4_148193452746206.xml · nonDerivative · entry 1

FELDBAUM CARL B · CIK 0001326377 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,721

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.

F1 · balance_after: Includes 2,172 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-16-000290 · wf-form4_148133172396557.xml · derivative · entry 3

Garber Alan M · CIK 0001312907 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2017-05-01

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.

F3 · derivative.exercise_date: The option, representing the right to purchase a total of 10,000 shares of Exelixis, Inc. common stock, became fully exercisable on May 2, 2008.

SEC source: 0000939767-16-000290 · wf-form4_148133172396557.xml · nonDerivative · entry 2

Garber Alan M · CIK 0001312907 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,329

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $16.9001 to $16.9006. 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: 0000939767-16-000290 · wf-form4_148133172396557.xml · nonDerivative · entry 1

Garber Alan M · CIK 0001312907 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,161

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 2,638 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-16-000288 · wf-form4_148115541665566.xml · derivative · entry 9

SCANGOS GEORGE A · CIK 0001202102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 356 shares

Expires 2016-12-07

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 400,000 shares of Exelixis, Inc. common stock, became exercisable as to 100,000 shares on December 8, 2007, and thereafter as to 1/48th of the original number of shares subject to the option on each monthly anniversary of the original grant date (December 8, 2006). The option ceased vesting on July 15, 2010, in connection with the Reporting Person's resignation as President and Chief Executive Officer of Exelixis, Inc., at which time the option was exercisable as to as to 358,332 shares of Exelixis, Inc. Common Stock.

SEC source: 0000939767-16-000288 · wf-form4_148115541665566.xml · nonDerivative · entry 4

SCANGOS GEORGE A · CIK 0001202102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,463,648

SEC source: 0000939767-16-000288 · wf-form4_148115541665566.xml · nonDerivative · entry 3

SCANGOS GEORGE A · CIK 0001202102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,463,824

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: 0000939767-16-000288 · wf-form4_148115541665566.xml · derivative · entry 8

SCANGOS GEORGE A · CIK 0001202102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 356

Underlying: Common Stock · 357,976 shares

Expires 2016-12-07

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 400,000 shares of Exelixis, Inc. common stock, became exercisable as to 100,000 shares on December 8, 2007, and thereafter as to 1/48th of the original number of shares subject to the option on each monthly anniversary of the original grant date (December 8, 2006). The option ceased vesting on July 15, 2010, in connection with the Reporting Person's resignation as President and Chief Executive Officer of Exelixis, Inc., at which time the option was exercisable as to as to 358,332 shares of Exelixis, Inc. Common Stock.

SEC source: 0000939767-16-000288 · wf-form4_148115541665566.xml · nonDerivative · entry 2

SCANGOS GEORGE A · CIK 0001202102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,463,468

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $17.45 to $18.00. 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: 0000939767-16-000288 · wf-form4_148115541665566.xml · nonDerivative · entry 1

SCANGOS GEORGE A · CIK 0001202102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,668,186

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 1,596 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-16-000286 · wf-form4_148072405626112.xml · derivative · entry 6

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 15,000 shares

Expires 2019-02-25

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 25,000 shares of Exelixis, Inc. common stock, became fully exercisable on February 26, 2013.

SEC source: 0000939767-16-000286 · wf-form4_148072405626112.xml · derivative · entry 5

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 55,000 shares

Expires 2018-09-27

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.

F5 · derivative.exercise_date: The option, representing the right to purchase a total of 75,000 shares of Exelixis, Inc. common stock, became fully exercisable on September 28, 2015.

SEC source: 0000939767-16-000286 · wf-form4_148072405626112.xml · nonDerivative · entry 3

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,600

F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Rerson on September 27, 2016.

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $16.38 to $16.92. 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: 0000939767-16-000286 · wf-form4_148072405626112.xml · nonDerivative · entry 2

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,600

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: 0000939767-16-000286 · wf-form4_148072405626112.xml · nonDerivative · entry 1

Lamb Peter · CIK 0001387306 · EVP, Scientific Strategy & CSO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,600

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 16,250 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0000939767-16-000285 · wf-form4_148072401067321.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 22,000 shares

Expires 2016-12-07

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.

F5 · derivative.exercise_date: The option, representing the right to purchase a total of 44,000 shares of Exelixis, Inc. common stock, became fully exercisable on December 8, 2010.

SEC source: 0000939767-16-000285 · wf-form4_148072401067321.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,053

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 June 3, 2016.

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $16.52 to $17.00. 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: 0000939767-16-000285 · wf-form4_148072401067321.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 180,053

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.

SEC source: 0000939767-16-000274 · wf-form4_147917026535534.xml · derivative · entry 5

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 200,000 shares

Expires 2016-12-07

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.

F5 · 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 8, 2010.

SEC source: 0000939767-16-000274 · wf-form4_147917026535534.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 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 27, 2016.

SEC source: 0000939767-16-000274 · wf-form4_147917026535534.xml · nonDerivative · entry 1

MORRISSEY MICHAEL · CIK 0001202096 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,000

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.

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.