Eckhardt Sue Gail

SEC source: 0000939767-26-000084 · wk-form4_1780527116.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,079

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 11, 2025.

F2 · price: Represents the weighted average sales price. The shares of Exelixis, Inc. common Stock ("Common Stock") were sold in multiple transactions at prices ranging from $49.73 to $50.61. 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 2 to this Form 4.

F3 · balance_after: Includes 16,079 shares of Common Stock that will be issued to the Reporting Person upon vesting of restricted stock units ("RSUs"). Each RSU is the economic equivalent of one share of Common Stock.

SEC source: 0000939767-26-000081 · wk-form4_1780091018.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,891

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. Each RSU is the economic equivalent of one share of Exelixis, Inc. common stock ("Common Stock"). The RSUs will vest as to 100% of the shares subject to the RSU award on May 27, 2027, subject to the Reporting Person's continuous service through that date.

F2 · balance_after: Includes 16,079 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs.

SEC source: 0000939767-26-000025 · wk-form4_1771465747.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,524

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 11, 2025.

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $42.89 to $43.89. 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.

F3 · balance_after: Includes 17,524 shares of Exelixis, Inc. common stock ("Common Stock") that will be issued to the Reporting Person upon vesting of restricted stock units ("RSUs"). Each RSU is the economic equivalent of one share of Common Stock.

SEC source: 0000939767-25-000099 · wk-form4_1749081453.xml · nonDerivative · entry 2

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,380

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 30, 2024.

F3 · balance_after: Includes 21,380 shares of Exelixis, Inc. common stock ("Common Stock") that will be issued to the Reporting Person upon vesting of restricted stock units ("RSUs"). Each RSU is the economic equivalent of one share of Common Stock.

SEC source: 0000939767-25-000099 · wk-form4_1749081453.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,384

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on October 30, 2024.

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $42.48 to $43.33. 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.

F3 · balance_after: Includes 21,380 shares of Exelixis, Inc. common stock ("Common Stock") that will be issued to the Reporting Person upon vesting of restricted stock units ("RSUs"). Each RSU is the economic equivalent of one share of Common Stock.

SEC source: 0000939767-25-000087 · wk-form4_1748646733.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,218

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. Each RSU is the economic equivalent of one share of Exelixis, Inc. common stock ("Common Stock"). The RSUs will vest as to 100% of the shares subject to the RSU award on May 29, 2026, subject to the Reporting Person's continuous service through that date.

F2 · balance_after: Includes 40,218 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs.

SEC source: 0000939767-25-000020 · wk-form4_1740015059.xml · derivative · entry 4

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,136

Underlying: Common Stock · 7,712 shares

Expires 2031-01-04

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.

F4 · derivative.exercise_date: The option, representing the right to purchase a total of 30,848 shares of Common Stock, became fully exercisable on January 5, 2024.

SEC source: 0000939767-25-000020 · wk-form4_1740015059.xml · nonDerivative · entry 3

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,406

F3 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $34.95 to $35.20. 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.

F1 · balance_after: Includes 30,406 shares of Exelixis, Inc. common stock ("Common Stock") that will be issued to the Reporting Person upon vesting of restricted stock units ("RSUs"). Each RSU is the economic equivalent of one share of Common Stock.

SEC source: 0000939767-25-000020 · wk-form4_1740015059.xml · nonDerivative · entry 2

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,262

F2 · price: Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $34.37 to $35.23. 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 2 to this Form 4.

F1 · balance_after: Includes 30,406 shares of Exelixis, Inc. common stock ("Common Stock") that will be issued to the Reporting Person upon vesting of restricted stock units ("RSUs"). Each RSU is the economic equivalent of one share of Common Stock.

SEC source: 0000939767-25-000020 · wk-form4_1740015059.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,974

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 30,406 shares of Exelixis, Inc. common stock ("Common Stock") that will be issued to the Reporting Person upon vesting of restricted stock units ("RSUs"). Each RSU is the economic equivalent of one share of Common Stock.

SEC source: 0000950170-24-070713 · ownership.xml · derivative · entry 2

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,000

Underlying: Common Stock · 6,000 shares

Expires 2034-06-04

F1 · derivative.exercise_date: The option becomes exercisable as to 50% of the shares underlying the award on the six month anniversary of the date of grant, with the remainder vesting in equal monthly installments of 8.33% of the shares underlying the award until the first anniversary of the date of grant, subject to the reporting person's continued service as a director through each applicable vesting date.

SEC source: 0000950170-24-070713 · ownership.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,000

SEC source: 0000939767-24-000096 · wk-form4_1717546784.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,262

F1 · date: Represents restricted stock units ("RSUs") granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 100% of the shares subject to the RSU award on May 31, 2025, subject to the Reporting Person's continuous service through that date.

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 100% of the shares subject to the RSU award on May 31, 2025, subject to the Reporting Person's continuous service through that date.

F2 · balance_after: Includes 34,262 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of RSUs. Each RSU is the economic equivalent of one share of Exelixis, Inc. common stock.

SEC source: 0000939767-24-000010 · wk-form4_1704852521.xml · derivative · entry 2

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,848

Underlying: Common Stock · 30,848 shares

Expires 2031-01-04

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 1/4th 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, subject to the Reporting Person's continuous service through such dates.

SEC source: 0000939767-24-000010 · wk-form4_1704852521.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,424

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 1/4th of the original number of shares subject to the restricted stock unit award on each of the first four anniversaries of the Transaction Date, subject to the Reporting Person's continuous service through such dates.

F3 · balance_after: Includes 15,424 shares of Exelixis, Inc. common stock that will be issued to the Reporting Person upon vesting of restricted stock units.

SEC source: 0001209191-23-033720 · doc4.xml · derivative · entry 2

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,000

Underlying: Common Stock · 6,000 shares

Expires 2033-05-31

F1 · derivative.exercise_date: The option becomes exercisable as to 50% of the shares underlying the award on the six month anniversary of the date of grant, with the remainder vesting in equal monthly installments of 8.33% of the shares underlying the award until the first anniversary of the date of grant, subject to the reporting person's continued service as a director through each applicable vesting date.

SEC source: 0001209191-23-033720 · doc4.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,000

SEC source: 0001209191-22-050551 · doc4.xml · derivative · entry 2

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,000

Underlying: Common Stock · 12,000 shares

Expires 2032-09-15

F1 · derivative.exercise_date: The option becomes exercisable as to 16.66% of the shares underlying the award on the six month anniversary of the date of grant, with the remainder vesting in equal monthly installments until the third anniversary of the date of grant, subject to the reporting person's continued service as a director through each applicable vesting date. Amounts reported in this Form 4 reflect the 1-for-10 reverse stock split effected by the issuer on September 16, 2022.

SEC source: 0001209191-22-050551 · doc4.xml · nonDerivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,000

SEC source: 0001209191-22-033706 · doc4.xml · derivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 17,500 shares

Expires 2032-05-31

F1 · derivative.exercise_date: The option becomes exercisable as to 50% of the shares underlying the award on the six month anniversary of the date of grant, with the remainder vesting in equal monthly installments until the first anniversary of the date of grant, subject to the reporting person's continued service as a director through each applicable vesting date.

SEC source: 0001209191-21-039574 · doc4.xml · derivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 17,500 shares

Expires 2031-06-07

F1 · derivative.exercise_date: The option becomes exercisable as to 50% of the shares underlying the award on the six month anniversary of the date of grant, with the remainder vesting in equal monthly installments until the first anniversary of the date of grant, subject to the reporting person's continued service as a director through each applicable vesting date.

SEC source: 0001209191-20-049803 · doc4.xml · derivative · entry 1

Eckhardt Sue Gail · CIK 0001823769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2030-09-07

F1 · derivative.exercise_date: This option becomes exercisable as to 16.66% of the shares underlying the award on the six month anniversary of the date of grant, with the remainder vesting in equal monthly installments until the third anniversary of the date of grant, subject to the reporting person's continued service as a director through each applicable vesting date.