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Insider Trading Arrangements
 3 Months Ended
Mar. 29, 2024
shares
Trading Arrangements, by Individual  
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
Dana T. Aftab [Member]  
Trading Arrangements, by Individual  
Material Terms of Trading Arrangement Dana T. Aftab, our Executive Vice President, Discovery and Translational Research, and Chief Scientific Officer, an officer for purposes of Section 16 of the Exchange Act, entered into a pre-arranged stock trading plan on May 25, 2023, which was subsequently modified on February 27, 2024. As modified, Dr. Aftab’s trading plan provides for the sale of up to 194,656 shares of our common stock (including shares obtained from the exercise of vested stock options covered by the trading plan) between May 30, 2024 and September 30, 2025. This trading plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act and Exelixis’ policies regarding transactions in Exelixis securities.
Name Dana T. Aftab
Title Executive Vice President, Discovery and Translational Research, and Chief Scientific Officer
Rule 10b5-1 Arrangement Adopted true
Adoption Date May 25, 2023
Arrangement Duration 488 days
Aggregate Available 194,656
Jeffrey J. Hessekiel [Member]  
Trading Arrangements, by Individual  
Material Terms of Trading Arrangement Jeffrey J. Hessekiel, our Executive Vice President, General Counsel and Secretary, an officer for purposes of Section 16 of the Exchange Act, entered into a pre-arranged stock trading plan on February 28, 2024. Mr. Hessekiel’s trading plan provides for the sale of up to 200,000 shares of our common stock (including shares obtained from the exercise of vested stock options covered by the trading plan) between May 29, 2024 and December 31, 2024. This trading plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act and Exelixis’ policies regarding transactions in Exelixis securities.
Name Jeffrey J. Hessekiel
Title Executive Vice President, General Counsel and Secretary
Rule 10b5-1 Arrangement Adopted true
Adoption Date February 28, 2024
Arrangement Duration 216 days
Aggregate Available 200,000
Jack L Wyszomierski [Member]  
Trading Arrangements, by Individual  
Material Terms of Trading Arrangement Jack L Wyszomierski, a member of our Board of Directors, entered into a pre-arranged stock trading plan on February 12, 2024. Mr. Wyszomierski’s trading plan provides for the sale of up to 19,973 shares of our common stock (including shares obtained from the exercise of vested stock options covered by the trading plan) between May 13, 2024 and June 12, 2024. This trading plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act and Exelixis’ policies regarding transactions in Exelixis securities.
Name Jack L Wyszomierski
Title Board of Directors
Rule 10b5-1 Arrangement Adopted true
Adoption Date February 12, 2024
Arrangement Duration 30 days
Aggregate Available 19,973