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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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":16079,"source":{"system":"sec-edgar","filing":"0000939767-26-000101","document":"wk-form4_1786577638.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000101/wk-form4_1786577638.xml","form_type":"4"}},{"id":753030,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":14130,"kind":"person","name":"WYSZOMIERSKI JACK L","position":1,"cik":"0001023225","reported_name":"WYSZOMIERSKI JACK L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T22:52:04.000Z","date":"2026-06-01","kind":"sale","planned":true,"acquired":false,"shares":3925,"price":50.55,"value":198408.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 8,367 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\nequivalent of one share of Common Stock."}],"balance_after":284384,"source":{"system":"sec-edgar","filing":"0000939767-26-000085","document":"wk-form4_1780527122.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000085/wk-form4_1780527122.xml","form_type":"4"}},{"id":753018,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":41984,"kind":"person","name":"Eckhardt Sue Gail","position":1,"cik":"0001823769","reported_name":"Eckhardt Sue Gail","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T22:51:58.000Z","date":"2026-06-01","kind":"sale","planned":true,"acquired":false,"shares":9812,"price":50.14,"value":491973.68,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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."}],"balance_after":16079,"source":{"system":"sec-edgar","filing":"0000939767-26-000084","document":"wk-form4_1780527116.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000084/wk-form4_1780527116.xml","form_type":"4"}},{"id":759304,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43288,"kind":"person","name":"PAPADOPOULOS STELIOS","position":1,"cik":"0001202098","reported_name":"PAPADOPOULOS STELIOS","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:52.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 8,367 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":1197595,"source":{"system":"sec-edgar","filing":"0000939767-26-000083","document":"wk-form4_1780091030.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000083/wk-form4_1780091030.xml","form_type":"4"}},{"id":759303,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43287,"kind":"person","name":"Heyman Tomas J.","position":1,"cik":"0001814673","reported_name":"Heyman Tomas J.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:46.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 17,455 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":50649,"source":{"system":"sec-edgar","filing":"0000939767-26-000082","document":"wk-form4_1780091024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000082/wk-form4_1780091024.xml","form_type":"4"}},{"id":759301,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":41984,"kind":"person","name":"Eckhardt Sue Gail","position":1,"cik":"0001823769","reported_name":"Eckhardt Sue Gail","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:42.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 16,079 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":25891,"source":{"system":"sec-edgar","filing":"0000939767-26-000081","document":"wk-form4_1780091018.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000081/wk-form4_1780091018.xml","form_type":"4"}},{"id":759300,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":40913,"kind":"person","name":"Smith Julie","position":1,"cik":"0001557928","reported_name":"Smith Julie","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:35.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 8,367 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":28957,"source":{"system":"sec-edgar","filing":"0000939767-26-000080","document":"wk-form4_1780091013.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000080/wk-form4_1780091013.xml","form_type":"4"}},{"id":759302,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":39445,"kind":"person","name":"Freire Maria C","position":1,"cik":"0001547999","reported_name":"Freire Maria C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:29.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 8,367 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":109186,"source":{"system":"sec-edgar","filing":"0000939767-26-000079","document":"wk-form4_1780091007.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000079/wk-form4_1780091007.xml","form_type":"4"}},{"id":759299,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":10924,"kind":"person","name":"Beckerle Mary C","position":1,"cik":"0001520181","reported_name":"Beckerle Mary C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:23.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 16,079 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":25891,"source":{"system":"sec-edgar","filing":"0000939767-26-000078","document":"wk-form4_1780091001.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000078/wk-form4_1780091001.xml","form_type":"4"}},{"id":759298,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43286,"kind":"person","name":"Oliver Bob","position":1,"cik":"0001694534","reported_name":"Oliver Bob","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:17.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 17,455 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":29487,"source":{"system":"sec-edgar","filing":"0000939767-26-000077","document":"wk-form4_1780090995.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000077/wk-form4_1780090995.xml","form_type":"4"}},{"id":759297,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":14130,"kind":"person","name":"WYSZOMIERSKI JACK L","position":1,"cik":"0001023225","reported_name":"WYSZOMIERSKI JACK L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:11.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 8,367 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":288309,"source":{"system":"sec-edgar","filing":"0000939767-26-000076","document":"wk-form4_1780090989.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000076/wk-form4_1780090989.xml","form_type":"4"}},{"id":759296,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":42492,"kind":"person","name":"POSTE GEORGE","position":1,"cik":"0001180770","reported_name":"POSTE GEORGE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-29T21:43:05.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":8367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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\none 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\nservice through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 8,367 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":127199,"source":{"system":"sec-edgar","filing":"0000939767-26-000075","document":"wk-form4_1780090983.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000075/wk-form4_1780090983.xml","form_type":"4"}},{"id":759294,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":36676,"kind":"person","name":"JOHNSON DAVID EDWARD","position":1,"cik":"0001785557","reported_name":"JOHNSON DAVID EDWARD","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36677,"kind":"person","name":"Caligan Partners LP","position":2,"cik":"0001727492","reported_name":"Caligan Partners LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"See Remarks"}}],"security":"Option (right to buy)","published_at":"2026-05-29T20:30:16.000Z","date":"2026-05-27","kind":"grant","planned":false,"acquired":true,"shares":19133,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Option granted to David Johnson (\"Mr. Johnson\") pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The option is exercisable immediately, subject to repurchase provisions, and will vest as to 100% of the shares subject to the option on the first anniversary of the date of grant, subject to Mr. Johnson's continuous service through such date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Mr. Johnson is deemed to hold the securities reported herein for the benefit of Caligan Partners Master Fund LP (the \"Caligan Master Fund\") and managed accounts to which Caligan Partners LP (\"Caligan\") serves as investment manager (the \"Caligan Accounts\", together with the Caligan Master Fund, the \"Caligan Master Fund and Accounts\"), and may, after vesting, if applicable, transfer the securities directly to the Caligan Master Fund and Accounts."}],"balance_after":19133,"derivative":{"exercise_price":50.03,"exercise_date":"2026-05-27","expiration_date":"2033-05-26","underlying":"Common Stock","underlying_shares":19133},"source":{"system":"sec-edgar","filing":"0000902664-26-002641","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000090266426002641/ownership.xml","form_type":"4"}},{"id":760732,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2026-05-28T22:25:18.000Z","date":"2026-05-26","kind":"sale","planned":false,"acquired":false,"shares":43451,"price":50.35,"value":2187757.85,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 405,966 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\"), and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). 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The shares of Exelixis, Inc. common stock (\"Common Stock\") were sold in multiple transactions at prices ranging from $49.80 to $49.89. 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 1 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 356,992 shares of Common Stock that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\"), and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":357638,"source":{"system":"sec-edgar","filing":"0000939767-26-000069","document":"wk-form4_1779483702.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000069/wk-form4_1779483702.xml","form_type":"4"}},{"id":773222,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-05-19T22:58:49.000Z","date":"2026-05-18","kind":"gift","planned":false,"acquired":true,"shares":124047,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"On May 18, 2026, the Reporting Person gifted 124,047 shares of Common Stock to Michael M. 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Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July\n21, 1994, as amended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,362,008 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of RSUs and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). 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Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1486055,"source":{"system":"sec-edgar","filing":"0000939767-26-000068","document":"wk-form4_1779231526.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000068/wk-form4_1779231526.xml","form_type":"4"}},{"id":773212,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":38030,"kind":"person","name":"Senner Christopher J.","position":1,"cik":"0001648367","reported_name":"Senner Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2026-05-19T22:58:43.000Z","date":"2026-05-18","kind":"sale","planned":false,"acquired":false,"shares":34901,"price":50,"value":1745050.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average sales price. The shares of Common Stock were sold in multiple transactions at prices ranging from $50.00 to $50.07. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 403,915 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of RSUs and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). 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Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":389748,"source":{"system":"sec-edgar","filing":"0000939767-26-000066","document":"wk-form4_1779231515.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000066/wk-form4_1779231515.xml","form_type":"4"}},{"id":773209,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":46126,"kind":"person","name":"Hefti Brenda","position":1,"cik":"0002097579","reported_name":"Hefti Brenda","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Common Stock","published_at":"2026-05-19T22:58:31.000Z","date":"2026-05-18","kind":"sale","planned":true,"acquired":false,"shares":6625,"price":50.21,"value":332641.25,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average sales price. The shares of Common Stock were sold in multiple transactions at prices ranging from $49.84 to $50.51. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 106,039 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of RSUs, the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\") and 167 shares of Common Stock acquired on April 30, 2026, pursuant to the Exelixis, Inc. 2000 Employee Stock Purchase Plan. Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":106762,"source":{"system":"sec-edgar","filing":"0000939767-26-000065","document":"wk-form4_1779231509.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000065/wk-form4_1779231509.xml","form_type":"4"}},{"id":773208,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":46126,"kind":"person","name":"Hefti Brenda","position":1,"cik":"0002097579","reported_name":"Hefti Brenda","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Common Stock","published_at":"2026-05-19T22:58:31.000Z","date":"2026-05-15","kind":"tax_withholding","planned":true,"acquired":false,"shares":6411,"price":51.1,"value":327602.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of restricted stock units (\"RSUs\") awarded on March 4, 2022, February 29, 2024, and February 26, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 106,039 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of RSUs, the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\") and 167 shares of Common Stock acquired on April 30, 2026, pursuant to the Exelixis, Inc. 2000 Employee Stock Purchase Plan. 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Each RSU is the economic\nequivalent of one share of Common Stock."}],"balance_after":17524,"source":{"system":"sec-edgar","filing":"0000939767-26-000063","document":"wk-form4_1778281427.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000063/wk-form4_1778281427.xml","form_type":"4"}},{"id":787538,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":10924,"kind":"person","name":"Beckerle Mary C","position":1,"cik":"0001520181","reported_name":"Beckerle Mary C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-08T23:03:49.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":true,"shares":3856,"price":23.24,"value":89613.44,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"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\"). 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Each RSU is the economic\nequivalent of one share of Common Stock."}],"balance_after":100819,"source":{"system":"sec-edgar","filing":"0000939767-26-000062","document":"wk-form4_1778281421.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000062/wk-form4_1778281421.xml","form_type":"4"}},{"id":787535,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":39445,"kind":"person","name":"Freire Maria C","position":1,"cik":"0001547999","reported_name":"Freire Maria C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-08T23:03:44.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":true,"shares":20634,"price":19.77,"value":407934.18,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 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\nequivalent of one share of Common Stock."}],"balance_after":121453,"source":{"system":"sec-edgar","filing":"0000939767-26-000062","document":"wk-form4_1778281421.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000062/wk-form4_1778281421.xml","form_type":"4"}},{"id":787534,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":42492,"kind":"person","name":"POSTE GEORGE","position":1,"cik":"0001180770","reported_name":"POSTE GEORGE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-08T23:03:38.000Z","date":"2026-05-07","kind":"sale","planned":false,"acquired":false,"shares":60000,"price":45.71,"value":2742600.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the weighted average sales price. The shares of Exelixis, Inc. common stock (\"Common Stock\") were sold in multiple transactions at prices ranging from $45.65 to $45.85. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 9,812 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."}],"balance_after":118832,"source":{"system":"sec-edgar","filing":"0000939767-26-000061","document":"wk-form4_1778281415.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000061/wk-form4_1778281415.xml","form_type":"4"}},{"id":787533,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-05-08T23:03:32.000Z","date":"2026-05-06","kind":"gift","planned":false,"acquired":false,"shares":109676,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On May 6, 2026, the Reporting Person gifted 109,676 shares of Exelixis, Inc. common stock (\"Common Stock\") to the Bombora Rise Foundation."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares of Common Stock held by Michael M. 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The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 466,061 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":668124,"source":{"system":"sec-edgar","filing":"0000939767-26-000037","document":"wk-form4_1772499575.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000037/wk-form4_1772499575.xml","form_type":"4"}},{"id":875308,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":38030,"kind":"person","name":"Senner Christopher J.","position":1,"cik":"0001648367","reported_name":"Senner Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2026-03-03T00:59:32.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":52018,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 479,708 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1028110,"source":{"system":"sec-edgar","filing":"0000939767-26-000036","document":"wk-form4_1772499569.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000036/wk-form4_1772499569.xml","form_type":"4"}},{"id":875309,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":46126,"kind":"person","name":"Hefti Brenda","position":1,"cik":"0002097579","reported_name":"Hefti Brenda","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Common Stock","published_at":"2026-03-03T00:59:26.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":23119,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 119,075 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":119631,"source":{"system":"sec-edgar","filing":"0000939767-26-000035","document":"wk-form4_1772499563.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000035/wk-form4_1772499563.xml","form_type":"4"}},{"id":875307,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2026-03-03T00:59:20.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":40459,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 422,367 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":422367,"source":{"system":"sec-edgar","filing":"0000939767-26-000034","document":"wk-form4_1772499558.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000034/wk-form4_1772499558.xml","form_type":"4"}},{"id":875306,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-03T00:59:14.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":160437,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F3","text":"Represents shares of Common Stock that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares of Common Stock that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on May 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each May 15th until fully vested."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,614,552 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs and the performance-based restricted stock unit award granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1614552,"source":{"system":"sec-edgar","filing":"0000939767-26-000033","document":"wk-form4_1772499552.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000033/wk-form4_1772499552.xml","form_type":"4"}},{"id":875305,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-03T00:59:14.000Z","date":"2026-02-24","kind":"gift","planned":false,"acquired":false,"shares":100278,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On February 24, 2026, the Reporting Person gifted 100,278 shares of Exelixis, Inc. common stock (\"Common Stock\") to the Bombora Rise Foundation."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares held by Michael M. Morrissey and Meghan D. 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Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":616106,"source":{"system":"sec-edgar","filing":"0000939767-26-000032","document":"wk-form4_1772149294.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000032/wk-form4_1772149294.xml","form_type":"4"}},{"id":888959,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2026-02-23T23:50:03.000Z","date":"2026-02-19","kind":"sale","planned":false,"acquired":false,"shares":29873,"price":44.35,"value":1324867.55,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 414,043 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":664024,"source":{"system":"sec-edgar","filing":"0000939767-26-000031","document":"wk-form4_1771890600.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000031/wk-form4_1771890600.xml","form_type":"4"}},{"id":891584,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":14130,"kind":"person","name":"WYSZOMIERSKI JACK L","position":1,"cik":"0001023225","reported_name":"WYSZOMIERSKI JACK L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Option (right to buy)","published_at":"2026-02-21T01:36:32.000Z","date":"2026-02-18","kind":"exercise","planned":true,"acquired":false,"shares":20634,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option, representing the right to purchase a total of 20,634 shares of Common Stock, became fully exercisable on May 23, 2019."}],"balance_after":0,"derivative":{"exercise_price":19.77,"exercise_date":"2019-05-23","expiration_date":"2026-05-22","underlying":"Common Stock","underlying_shares":20634},"source":{"system":"sec-edgar","filing":"0000939767-26-000030","document":"wk-form4_1771637788.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000030/wk-form4_1771637788.xml","form_type":"4"}},{"id":891583,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":14130,"kind":"person","name":"WYSZOMIERSKI JACK L","position":1,"cik":"0001023225","reported_name":"WYSZOMIERSKI JACK L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-21T01:36:32.000Z","date":"2026-02-18","kind":"sale","planned":true,"acquired":false,"shares":99574,"price":44.01,"value":4382251.74,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.32 to $44.49. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 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."}],"balance_after":279942,"source":{"system":"sec-edgar","filing":"0000939767-26-000030","document":"wk-form4_1771637788.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000030/wk-form4_1771637788.xml","form_type":"4"}},{"id":891582,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":14130,"kind":"person","name":"WYSZOMIERSKI JACK L","position":1,"cik":"0001023225","reported_name":"WYSZOMIERSKI JACK L","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-21T01:36:32.000Z","date":"2026-02-18","kind":"exercise","planned":true,"acquired":true,"shares":20634,"price":19.77,"value":407934.18,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\"). 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Each RSU is the economic equivalent of one share of Common Stock."}],"balance_after":20590,"source":{"system":"sec-edgar","filing":"0000939767-26-000029","document":"wk-form4_1771546714.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000029/wk-form4_1771546714.xml","form_type":"4"}},{"id":894481,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":40913,"kind":"person","name":"Smith Julie","position":1,"cik":"0001557928","reported_name":"Smith Julie","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-20T00:18:36.000Z","date":"2026-02-18","kind":"exercise","planned":false,"acquired":true,"shares":20030,"price":21.69,"value":434450.7,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 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."}],"balance_after":40620,"source":{"system":"sec-edgar","filing":"0000939767-26-000029","document":"wk-form4_1771546714.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000029/wk-form4_1771546714.xml","form_type":"4"}},{"id":894480,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":40913,"kind":"person","name":"Smith Julie","position":1,"cik":"0001557928","reported_name":"Smith Julie","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-20T00:18:36.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":44087,"price":44.5,"value":1961871.5,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 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."}],"balance_after":20590,"source":{"system":"sec-edgar","filing":"0000939767-26-000029","document":"wk-form4_1771546714.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000029/wk-form4_1771546714.xml","form_type":"4"}},{"id":894479,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":40913,"kind":"person","name":"Smith Julie","position":1,"cik":"0001557928","reported_name":"Smith Julie","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-20T00:18:36.000Z","date":"2026-02-18","kind":"exercise","planned":false,"acquired":true,"shares":44087,"price":19.39,"value":854846.93,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 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."}],"balance_after":64677,"source":{"system":"sec-edgar","filing":"0000939767-26-000029","document":"wk-form4_1771546714.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000029/wk-form4_1771546714.xml","form_type":"4"}},{"id":894478,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":40913,"kind":"person","name":"Smith Julie","position":1,"cik":"0001557928","reported_name":"Smith Julie","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-20T00:18:36.000Z","date":"2026-02-17","kind":"sale","planned":false,"acquired":false,"shares":42422,"price":43.33,"value":1838145.26,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $44.30 to $44.44. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 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."}],"balance_after":20590,"source":{"system":"sec-edgar","filing":"0000939767-26-000029","document":"wk-form4_1771546714.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000029/wk-form4_1771546714.xml","form_type":"4"}},{"id":894477,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":40913,"kind":"person","name":"Smith Julie","position":1,"cik":"0001557928","reported_name":"Smith Julie","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-20T00:18:36.000Z","date":"2026-02-17","kind":"exercise","planned":false,"acquired":true,"shares":42422,"price":18.19,"value":771656.18,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 9,812 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."}],"balance_after":63012,"source":{"system":"sec-edgar","filing":"0000939767-26-000029","document":"wk-form4_1771546714.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000029/wk-form4_1771546714.xml","form_type":"4"}},{"id":898455,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":38030,"kind":"person","name":"Senner Christopher J.","position":1,"cik":"0001648367","reported_name":"Senner Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:29.000Z","date":"2026-02-17","kind":"sale","planned":false,"acquired":false,"shares":30617,"price":43.67,"value":1337044.39,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.66 to $43.78. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 427,690 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":976092,"source":{"system":"sec-edgar","filing":"0000939767-26-000028","document":"wk-form4_1771465767.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000028/wk-form4_1771465767.xml","form_type":"4"}},{"id":898454,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":38030,"kind":"person","name":"Senner Christopher J.","position":1,"cik":"0001648367","reported_name":"Senner Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:29.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":35870,"price":43.92,"value":1575410.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of performance-based restricted stock units awarded on March 4, 2022, for which the Compensation Committee certified that Exelixis, Inc. had achieved certain performance criteria on January 16, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 427,690 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":1006709,"source":{"system":"sec-edgar","filing":"0000939767-26-000028","document":"wk-form4_1771465767.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000028/wk-form4_1771465767.xml","form_type":"4"}},{"id":898453,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":38030,"kind":"person","name":"Senner Christopher J.","position":1,"cik":"0001648367","reported_name":"Senner Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:29.000Z","date":"2026-02-13","kind":"sale","planned":false,"acquired":false,"shares":34278,"price":43,"value":1473954.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.00 to $43.04. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 427,690 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":1042579,"source":{"system":"sec-edgar","filing":"0000939767-26-000028","document":"wk-form4_1771465767.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000028/wk-form4_1771465767.xml","form_type":"4"}},{"id":898452,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:23.000Z","date":"2026-02-17","kind":"sale","planned":false,"acquired":false,"shares":64778,"price":43.5,"value":2817843.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.50 to $43.64. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 381,908 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":381908,"source":{"system":"sec-edgar","filing":"0000939767-26-000027","document":"wk-form4_1771465761.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000027/wk-form4_1771465761.xml","form_type":"4"}},{"id":898451,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:23.000Z","date":"2026-02-17","kind":"sale","planned":false,"acquired":false,"shares":3036,"price":43.84,"value":133098.24,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.80 to $43.84. 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 3 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 381,908 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). 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Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":449722,"source":{"system":"sec-edgar","filing":"0000939767-26-000027","document":"wk-form4_1771465761.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000027/wk-form4_1771465761.xml","form_type":"4"}},{"id":898449,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Option (right to buy)","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-13","kind":"exercise","planned":false,"acquired":false,"shares":494700,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"The option, representing the right to purchase a total of 494,700 shares of Common Stock, became fully exercisable on March 4, 2025."}],"balance_after":0,"derivative":{"exercise_price":21.31,"exercise_date":"2022-03-04","expiration_date":"2028-03-03","underlying":"Common Stock","underlying_shares":494700},"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898448,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-18","kind":"gift","planned":false,"acquired":true,"shares":125094,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"On February 18, 2026, the Reporting Person gifted 125,094 shares of Common Stock to Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Trust dated July 21, 1994, as\namended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Shares held by Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July 21, 1994, as amended."}],"balance_after":2090234,"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898447,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-18","kind":"gift","planned":false,"acquired":false,"shares":125094,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"On February 18, 2026, the Reporting Person gifted 125,094 shares of Common Stock to Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Trust dated July 21, 1994, as\namended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 1,454,115 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":1454115,"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898446,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-17","kind":"gift","planned":false,"acquired":true,"shares":250736,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"On February 17, 2026, the Reporting Person gifted 250,736 shares of Common Stock to Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Trust dated July 21, 1994, as\namended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Shares held by Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July 21, 1994, as amended."}],"balance_after":1965140,"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898445,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-17","kind":"gift","planned":false,"acquired":false,"shares":250736,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"On February 17, 2026, the Reporting Person gifted 250,736 shares of Common Stock to Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Trust dated July 21, 1994, as\namended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 1,454,115 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":1579209,"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898444,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":120390,"price":43.92,"value":5287528.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of performance-based restricted stock units awarded on March 4, 2022, for which the Compensation Committee certified that Exelixis, Inc. had achieved certain performance criteria on January 16, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 1,454,115 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":1829945,"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898443,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-13","kind":"tax_withholding","planned":false,"acquired":false,"shares":369606,"price":43.92,"value":16233095.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents a \"net exercise\" of an outstanding stock option to purchase 494,700 shares, and pursuant to which the Reporting Person received 125,094 shares of Common Stock. The Issuer withheld\n369,606 shares of Common Stock underlying the stock option for payment of the exercise price and tax withholding using the closing stock price on January 13, 2026 of $43.92."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 1,454,115 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":1950335,"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898442,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:15.000Z","date":"2026-02-13","kind":"exercise","planned":false,"acquired":true,"shares":494700,"price":21.31,"value":10542057.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 1,454,115 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":2319941,"source":{"system":"sec-edgar","filing":"0000939767-26-000026","document":"wk-form4_1771465753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000026/wk-form4_1771465753.xml","form_type":"4"}},{"id":898441,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":41984,"kind":"person","name":"Eckhardt Sue Gail","position":1,"cik":"0001823769","reported_name":"Eckhardt Sue Gail","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-19T01:49:09.000Z","date":"2026-02-13","kind":"sale","planned":true,"acquired":false,"shares":3856,"price":43.79,"value":168854.24,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"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\nequivalent of one share of Common Stock."}],"balance_after":17524,"source":{"system":"sec-edgar","filing":"0000939767-26-000025","document":"wk-form4_1771465747.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000025/wk-form4_1771465747.xml","form_type":"4"}},{"id":898440,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:03.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":12720,"price":43.92,"value":558662.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of RSUs awarded on January 5, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 414,043 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":693897,"source":{"system":"sec-edgar","filing":"0000939767-26-000024","document":"wk-form4_1771465741.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000024/wk-form4_1771465741.xml","form_type":"4"}},{"id":898439,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2026-02-19T01:49:03.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":26485,"price":43.92,"value":1163221.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of performance-based restricted stock units awarded on March 4, 2022, for which the Compensation Committee certified that Exelixis, Inc. had achieved certain performance criteria on January 16, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 414,043 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":706617,"source":{"system":"sec-edgar","filing":"0000939767-26-000024","document":"wk-form4_1771465741.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000024/wk-form4_1771465741.xml","form_type":"4"}},{"id":898438,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43286,"kind":"person","name":"Oliver Bob","position":1,"cik":"0001694534","reported_name":"Oliver Bob","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Option (right to buy)","published_at":"2026-02-19T01:48:57.000Z","date":"2026-02-13","kind":"exercise","planned":false,"acquired":false,"shares":9088,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option, representing the right to purchase a total of 36,353 shares of Common Stock, became fully exercisable on May 31, 2023."}],"balance_after":12118,"derivative":{"exercise_price":19.28,"exercise_date":"2023-05-31","expiration_date":"2030-05-30","underlying":"Common Stock","underlying_shares":9088},"source":{"system":"sec-edgar","filing":"0000939767-26-000023","document":"wk-form4_1771465734.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000023/wk-form4_1771465734.xml","form_type":"4"}},{"id":898437,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43286,"kind":"person","name":"Oliver Bob","position":1,"cik":"0001694534","reported_name":"Oliver Bob","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-19T01:48:57.000Z","date":"2026-02-13","kind":"sale","planned":false,"acquired":false,"shares":21162,"price":43.9,"value":929011.8,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.90 to $43.96. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 2 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 18,900 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\nequivalent of one share of Common Stock."}],"balance_after":21120,"source":{"system":"sec-edgar","filing":"0000939767-26-000023","document":"wk-form4_1771465734.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000023/wk-form4_1771465734.xml","form_type":"4"}},{"id":898436,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43286,"kind":"person","name":"Oliver Bob","position":1,"cik":"0001694534","reported_name":"Oliver Bob","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-19T01:48:57.000Z","date":"2026-02-13","kind":"sale","planned":false,"acquired":false,"shares":9088,"price":43.61,"value":396327.68,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 18,900 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\nequivalent of one share of Common Stock."}],"balance_after":42282,"source":{"system":"sec-edgar","filing":"0000939767-26-000023","document":"wk-form4_1771465734.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000023/wk-form4_1771465734.xml","form_type":"4"}},{"id":898435,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43286,"kind":"person","name":"Oliver Bob","position":1,"cik":"0001694534","reported_name":"Oliver Bob","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-19T01:48:57.000Z","date":"2026-02-13","kind":"exercise","planned":false,"acquired":true,"shares":9088,"price":19.28,"value":175216.64,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 18,900 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\nequivalent of one share of Common Stock."}],"balance_after":51370,"source":{"system":"sec-edgar","filing":"0000939767-26-000023","document":"wk-form4_1771465734.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000023/wk-form4_1771465734.xml","form_type":"4"}},{"id":898432,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":46126,"kind":"person","name":"Hefti Brenda","position":1,"cik":"0002097579","reported_name":"Hefti Brenda","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Common Stock","published_at":"2026-02-19T01:48:49.000Z","date":"2026-02-18","kind":"sale","planned":true,"acquired":false,"shares":18669,"price":44.01,"value":821622.69,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 19, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.32 to $44.49. 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 95,956 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":96512,"source":{"system":"sec-edgar","filing":"0000939767-26-000022","document":"wk-form4_1771465726.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000022/wk-form4_1771465726.xml","form_type":"4"}},{"id":898431,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":46126,"kind":"person","name":"Hefti Brenda","position":1,"cik":"0002097579","reported_name":"Hefti Brenda","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Common Stock","published_at":"2026-02-19T01:48:49.000Z","date":"2026-02-15","kind":"tax_withholding","planned":true,"acquired":false,"shares":5430,"price":43.92,"value":238485.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of performance-based restricted stock units awarded on March 4, 2022, for which the Compensation\nCommittee certified that Exelixis, Inc. had achieved certain performance criteria on January 16, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 95,956 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the\nReporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to\nreceive one share of Common Stock."}],"balance_after":115181,"source":{"system":"sec-edgar","filing":"0000939767-26-000022","document":"wk-form4_1771465726.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000022/wk-form4_1771465726.xml","form_type":"4"}},{"id":937721,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-01-17T00:03:00.000Z","date":"2026-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":139524,"price":45.23,"value":6310670.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of the PSUs awarded on April 3, 2023, for which the Committee certified that Exelixis, Inc. had achieved certain performance criteria on January 15, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,690,729 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1825241,"source":{"system":"sec-edgar","filing":"0000939767-26-000007","document":"wk-form4_1768608177.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000007/wk-form4_1768608177.xml","form_type":"4"}},{"id":937720,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-01-17T00:03:00.000Z","date":"2026-01-15","kind":"grant","planned":false,"acquired":true,"shares":548073,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"On April 3, 2023, the Reporting Person was granted a performance-based restricted stock unit award (\"PSU\") under the Exelixis, Inc. 2017 Equity Incentive Plan covering 313,185 shares of common stock (such shares, the \"Target Shares\"). The PSU generally vests as follows: (i) 50% of the eligible Target Shares vest upon the Compensation Committee's (the \"Committee\") certification of achievement of certain performance criteria; and (ii) 50% of the eligible Target Shares vest on the first quarterly PSU vesting date (i.e. February 15th, May 15th, August 15th and November 15th) following the one-year anniversary of the Committee's certification. In addition, the PSU provides for vesting of up to a maximum of 175% of the Target Shares depending on the timing and level of achievement of the performance criteria provided for under the PSU."},{"field":"shares","element":"transactionShares","label":"F2","text":"On January 15, 2026, the Committee determined that certain performance criteria had been achieved, resulting in the Reporting Person's eligibility to vest up to 175% of the Target Shares subject to the PSU (such shares, the \"Achieved Shares\"). Accordingly, the Committee's certification on January 15, 2026 resulted in the immediate vesting of 50% of the Achieved Shares, and the remaining 50% of the Achieved Shares will vest on February 15, 2027, subject to the Reporting Person's continuous service through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,690,729 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1964765,"source":{"system":"sec-edgar","filing":"0000939767-26-000007","document":"wk-form4_1768608177.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000007/wk-form4_1768608177.xml","form_type":"4"}},{"id":937723,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2026-01-17T00:02:54.000Z","date":"2026-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":27254,"price":45.23,"value":1232698.42,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of the PSUs awarded on April 3, 2023, for which the Committee certified that Exelixis, Inc. had achieved certain performance criteria on January 15, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 491,096 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":733102,"source":{"system":"sec-edgar","filing":"0000939767-26-000006","document":"wk-form4_1768608171.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000006/wk-form4_1768608171.xml","form_type":"4"}},{"id":937722,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2026-01-17T00:02:54.000Z","date":"2026-01-15","kind":"grant","planned":false,"acquired":true,"shares":119578,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"On April 3, 2023, the Reporting Person was granted a performance-based restricted stock unit award (\"PSU\") under the Exelixis, Inc. 2017 Equity Incentive Plan covering 68,331 shares of common stock (such shares, the \"Target Shares\"). The PSU generally vests as follows: (i) 50% of the eligible Target Shares vest upon the Compensation Committee's (the \"Committee\") certification of achievement of certain performance criteria; and (ii) 50% of the eligible Target Shares vest on the first quarterly PSU vesting date (i.e. February 15th, May 15th, August 15th and November 15th) following the one-year anniversary of the Committee's certification. In addition, the PSU provides for vesting of up to a maximum of 175% of the Target Shares depending on the timing and level of achievement of the performance criteria provided for under the PSU."},{"field":"shares","element":"transactionShares","label":"F2","text":"On January 15, 2026, the Committee determined that certain performance criteria had been achieved, resulting in the Reporting Person's eligibility to vest up to 175% of the Target Shares subject to the PSU (such shares, the \"Achieved Shares\"). Accordingly, the Committee's certification on January 15, 2026 resulted in the immediate vesting of 50% of the Achieved Shares, and the remaining 50% of the Achieved Shares will vest on February 15, 2027, subject to the Reporting Person's continuous service through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 491,096 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":760356,"source":{"system":"sec-edgar","filing":"0000939767-26-000006","document":"wk-form4_1768608171.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000006/wk-form4_1768608171.xml","form_type":"4"}},{"id":937719,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2026-01-17T00:02:49.000Z","date":"2026-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":32332,"price":45.23,"value":1462376.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of the PSUs awarded on April 3, 2023, for which the Committee certified that Exelixis, Inc. had achieved certain performance criteria on January 15, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 443,784 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":481205,"source":{"system":"sec-edgar","filing":"0000939767-26-000005","document":"wk-form4_1768608166.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000005/wk-form4_1768608166.xml","form_type":"4"}},{"id":937718,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2026-01-17T00:02:49.000Z","date":"2026-01-15","kind":"grant","planned":false,"acquired":true,"shares":139508,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"On April 3, 2023, the Reporting Person was granted a performance-based restricted stock unit award (\"PSU\") under the Exelixis, Inc. 2017 Equity Incentive Plan covering 79,719 shares of common stock (such shares, the \"Target Shares\"). The PSU generally vests as follows: (i) 50% of the eligible Target Shares vest upon the Compensation Committee's (the \"Committee\") certification of achievement of certain performance criteria; and (ii) 50% of the eligible Target Shares vest on the first quarterly PSU vesting date (i.e. February 15th, May 15th, August 15th and November 15th) following the one-year anniversary of the Committee's certification. In addition, the PSU provides for vesting of up to a maximum of 175% of the Target Shares depending on the timing and level of achievement of the performance criteria provided for under the PSU."},{"field":"shares","element":"transactionShares","label":"F2","text":"On January 15, 2026, the Committee determined that certain performance criteria had been achieved, resulting in the Reporting Person's eligibility to vest up to 175% of the Target Shares subject to the PSU (such shares, the \"Achieved Shares\"). Accordingly, the Committee's certification on January 15, 2026 resulted in the immediate vesting of 50% of the Achieved Shares, and the remaining 50% of the Achieved Shares will vest on February 15, 2027, subject to the Reporting Person's continuous service through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 443,784 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":513537,"source":{"system":"sec-edgar","filing":"0000939767-26-000005","document":"wk-form4_1768608166.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000005/wk-form4_1768608166.xml","form_type":"4"}},{"id":937717,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":38030,"kind":"person","name":"Senner Christopher J.","position":1,"cik":"0001648367","reported_name":"Senner Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2026-01-17T00:02:43.000Z","date":"2026-01-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":40459,"price":45.23,"value":1829960.57,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Shares withheld by Exelixis, Inc. to satisfy taxes payable in connection with the vesting of the PSUs awarded on April 3, 2023, for which the Committee certified that Exelixis, Inc. had achieved certain performance criteria on January 15, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 494,177 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1076857,"source":{"system":"sec-edgar","filing":"0000939767-26-000004","document":"wk-form4_1768608160.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000004/wk-form4_1768608160.xml","form_type":"4"}},{"id":937716,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":38030,"kind":"person","name":"Senner Christopher J.","position":1,"cik":"0001648367","reported_name":"Senner Christopher J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP and CFO"}}],"security":"Common Stock","published_at":"2026-01-17T00:02:43.000Z","date":"2026-01-15","kind":"grant","planned":false,"acquired":true,"shares":149474,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"On April 3, 2023, the Reporting Person was granted a performance-based restricted stock unit award (\"PSU\") under the Exelixis, Inc. 2017 Equity Incentive Plan covering 85,414 shares of common stock (such shares, the \"Target Shares\"). The PSU generally vests as follows: (i) 50% of the eligible Target Shares vest upon the Compensation Committee's (the \"Committee\") certification of achievement of certain performance criteria; and (ii) 50% of the eligible Target Shares vest on the first quarterly PSU vesting date (i.e. February 15th, May 15th, August 15th and November 15th) following the one-year anniversary of the Committee's certification. In addition, the PSU provides for vesting of up to a maximum of 175% of the Target Shares depending on the timing and level of achievement of the performance criteria provided for under the PSU."},{"field":"shares","element":"transactionShares","label":"F2","text":"On January 15, 2026, the Committee determined that certain performance criteria had been achieved, resulting in the Reporting Person's eligibility to vest up to 175% of the Target Shares subject to the PSU (such shares, the \"Achieved Shares\"). Accordingly, the Committee's certification on January 15, 2026 resulted in the immediate vesting of 50% of the Achieved Shares, and the remaining 50% of the Achieved Shares will vest on February 15, 2027, subject to the Reporting Person's continuous service through that date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 494,177 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and PSUs granted to the Reporting Person on March 31, 2025 (\"One-Time Award PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each One-Time Award PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1117316,"source":{"system":"sec-edgar","filing":"0000939767-26-000004","document":"wk-form4_1768608160.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976726000004/wk-form4_1768608160.xml","form_type":"4"}},{"id":979628,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":46126,"kind":"person","name":"Hefti Brenda","position":1,"cik":"0002097579","reported_name":"Hefti Brenda","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Common Stock","published_at":"2025-12-05T23:51:19.000Z","date":"2025-12-03","kind":"grant","planned":false,"acquired":true,"shares":30170,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on February 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each February 15th until fully vested."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon the vesting of restricted stock units (\"RSUs\"). The RSUs were granted to the Reporting Person on the Transaction Date pursuant to the Exelixis, Inc. 2017 Equity Incentive Plan. The RSUs will vest as to 1/4th of the original number of shares subject to the RSU award on February 15, 2027 and thereafter as to 1/4th of the original number of shares subject to the RSU award on each February 15th until fully vested."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 110,745 shares of Common Stock that will be issued to the Reporting Person upon vesting of RSUs."}],"balance_after":120611,"source":{"system":"sec-edgar","filing":"0000939767-25-000141","document":"wk-form4_1764978676.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000141/wk-form4_1764978676.xml","form_type":"4"}},{"id":987883,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":36676,"kind":"person","name":"JOHNSON DAVID EDWARD","position":1,"cik":"0001785557","reported_name":"JOHNSON DAVID EDWARD","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36677,"kind":"person","name":"Caligan Partners LP","position":2,"cik":"0001727492","reported_name":"Caligan Partners LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"See Remarks"}}],"security":"Common Stock","published_at":"2025-11-26T21:05:28.000Z","date":"2025-11-25","kind":"purchase","planned":false,"acquired":true,"shares":27532,"price":43.122,"value":1187234.904,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This Form 4 is filed by David Johnson (\"Mr. Johnson\") and Caligan Partners LP (\"Caligan\") with respect to the securities held by Caligan Partners Master Fund LP (\"Caligan Master Fund\"), a Cayman Islands limited partnership, and managed accounts (\"Caligan Accounts\", together with the Caligan Master Fund, the \"Caligan Fund and Accounts\") to which Caligan serves as investment manager. Mr. Johnson is the Managing Partner of Caligan and a Managing Member of Caligan Partners GP LLC, the general partner of Caligan."}],"balance_after":1553262,"source":{"system":"sec-edgar","filing":"0000902664-25-005164","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000090266425005164/ownership.xml","form_type":"4"}},{"id":990591,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2025-11-25T00:47:58.000Z","date":"2025-11-21","kind":"sale","planned":false,"acquired":false,"shares":28043,"price":42.58,"value":1194070.94,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $42.51 to $42.71. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 5 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 374,029 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and performance-based\nrestricted stock units (\"PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":374029,"source":{"system":"sec-edgar","filing":"0000939767-25-000140","document":"wk-form4_1764031675.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000140/wk-form4_1764031675.xml","form_type":"4"}},{"id":990590,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2025-11-25T00:47:58.000Z","date":"2025-11-20","kind":"sale","planned":false,"acquired":false,"shares":10648,"price":41.77,"value":444766.96,"ownership":{"direct":false,"nature":"By 401(k)"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $41.77 to $41.79. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 4 to this Form 4."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000939767-25-000140","document":"wk-form4_1764031675.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000140/wk-form4_1764031675.xml","form_type":"4"}},{"id":990589,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2025-11-25T00:47:58.000Z","date":"2025-11-20","kind":"sale","planned":false,"acquired":false,"shares":23539,"price":41.93,"value":986990.27,"ownership":{"direct":false,"nature":"By spouse"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $41.87 to $41.99. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 3 to this Form 4."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000939767-25-000140","document":"wk-form4_1764031675.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000140/wk-form4_1764031675.xml","form_type":"4"}},{"id":990588,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44903,"kind":"person","name":"Haley Patrick J.","position":1,"cik":"0001692954","reported_name":"Haley Patrick J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Commercial"}}],"security":"Common Stock","published_at":"2025-11-25T00:47:58.000Z","date":"2025-11-20","kind":"sale","planned":false,"acquired":false,"shares":10000,"price":42.11,"value":421100.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $42.10 to $42.13. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 1 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 374,029 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and performance-based\nrestricted stock units (\"PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":402072,"source":{"system":"sec-edgar","filing":"0000939767-25-000140","document":"wk-form4_1764031675.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000140/wk-form4_1764031675.xml","form_type":"4"}},{"id":990592,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2025-11-25T00:47:52.000Z","date":"2025-11-21","kind":"gift","planned":false,"acquired":false,"shares":24000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 21, 2025, the Reporting Person gifted 24,000 shares of Exelixis Inc. common stock (\"Common Stock\") to a donor-advised fund."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 431,306 shares of Common Stock that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSU\") and performance-based restricted stock units (\"PSUs\"). Each\nRSU is the economic equivalent of one share of Common Stock and each PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":640778,"source":{"system":"sec-edgar","filing":"0000939767-25-000139","document":"wk-form4_1764031668.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000139/wk-form4_1764031668.xml","form_type":"4"}},{"id":994477,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43286,"kind":"person","name":"Oliver Bob","position":1,"cik":"0001694534","reported_name":"Oliver Bob","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-11-20T01:11:06.000Z","date":"2025-11-17","kind":"gift","planned":false,"acquired":false,"shares":1044,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 17, 2025, the Reporting Person gifted 1,044 shares of Exelixis, Inc. common stock (\"Common Stock\") to a not-for-profit organization."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 18,900 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."}],"balance_after":42282,"source":{"system":"sec-edgar","filing":"0000939767-25-000138","document":"wk-form4_1763601062.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000138/wk-form4_1763601062.xml","form_type":"4"}},{"id":1000920,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43288,"kind":"person","name":"PAPADOPOULOS STELIOS","position":1,"cik":"0001202098","reported_name":"PAPADOPOULOS STELIOS","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-11-14T00:12:53.000Z","date":"2025-11-12","kind":"sale","planned":false,"acquired":false,"shares":100000,"price":43.55,"value":4355000.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $43.55 to $43.58. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 1 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 9,812 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."}],"balance_after":1189228,"source":{"system":"sec-edgar","filing":"0000939767-25-000137","document":"wk-form4_1763079170.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000137/wk-form4_1763079170.xml","form_type":"4"}},{"id":1000919,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-11-14T00:12:46.000Z","date":"2025-11-12","kind":"gift","planned":false,"acquired":false,"shares":80000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"On November 12, 2025, the Reporting Person gifted 80,000 shares of Common Stock to a donor advised fund."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Shares held by Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July 21, 1994, as amended."}],"balance_after":1714404,"source":{"system":"sec-edgar","filing":"0000939767-25-000136","document":"wk-form4_1763079162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000136/wk-form4_1763079162.xml","form_type":"4"}},{"id":1000918,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-11-14T00:12:46.000Z","date":"2025-11-12","kind":"gift","planned":false,"acquired":true,"shares":101548,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"On November 12, 2025, the Reporting Person gifted 101,548 shares of Common Stock to Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July 21, 1994, as amended."}],"balance_after":1794404,"source":{"system":"sec-edgar","filing":"0000939767-25-000136","document":"wk-form4_1763079162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000136/wk-form4_1763079162.xml","form_type":"4"}},{"id":1000917,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-11-14T00:12:46.000Z","date":"2025-11-12","kind":"gift","planned":false,"acquired":false,"shares":101548,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"On November 12, 2025, the Reporting Person gifted 101,548 shares of Common Stock to Michael M. Morrissey and Meghan D. Morrissey, Trustees of the Morrissey Family Living Trust dated July 21, 1994, as amended."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,416,692 shares of Common Stock that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSUs\") and performance-based restricted stock units (\"PSUs\"). Each RSU is the economic equivalent of one share of Common Stock and each PSU represents a contingent right to receive one share of Common Stock."}],"balance_after":1416692,"source":{"system":"sec-edgar","filing":"0000939767-25-000136","document":"wk-form4_1763079162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000136/wk-form4_1763079162.xml","form_type":"4"}},{"id":1000916,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":44157,"kind":"person","name":"MORRISSEY MICHAEL","position":1,"cik":"0001202096","reported_name":"MORRISSEY MICHAEL","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-11-14T00:12:46.000Z","date":"2025-11-11","kind":"gift","planned":false,"acquired":false,"shares":160000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On November 11, 2025, the Reporting Person gifted 160,000 shares of Exelixis, Inc. common stock (\"Common Stock\") to the Bombora Rise Foundation."}],"balance_after":1692856,"source":{"system":"sec-edgar","filing":"0000939767-25-000136","document":"wk-form4_1763079162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000136/wk-form4_1763079162.xml","form_type":"4"}},{"id":1000915,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":43629,"kind":"person","name":"Aftab Dana","position":1,"cik":"0001959132","reported_name":"Aftab Dana","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, Research and Development"}}],"security":"Common Stock","published_at":"2025-11-14T00:12:39.000Z","date":"2025-11-11","kind":"sale","planned":false,"acquired":false,"shares":48383,"price":42.5,"value":2056277.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $42.50 to $42.58. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 1 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 431,306 shares of Exelixis, Inc. common stock (\"Common Stock\") that will be issued to the Reporting Person upon vesting of restricted stock units (\"RSU\"). Each RSU is the economic equivalent of one share of Common Stock."}],"balance_after":664778,"source":{"system":"sec-edgar","filing":"0000939767-25-000135","document":"wk-form4_1763079156.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000135/wk-form4_1763079156.xml","form_type":"4"}},{"id":1000914,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":10924,"kind":"person","name":"Beckerle Mary C","position":1,"cik":"0001520181","reported_name":"Beckerle Mary C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Option (right to buy)","published_at":"2025-11-14T00:12:33.000Z","date":"2025-11-11","kind":"exercise","planned":false,"acquired":false,"shares":5784,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option, representing the right to purchase a total of 30,848 shares of Common Stock, became fully exercisable on January 5, 2024."}],"balance_after":16710,"derivative":{"exercise_price":23.24,"exercise_date":"2024-01-05","expiration_date":"2031-01-04","underlying":"Common Stock","underlying_shares":5784},"source":{"system":"sec-edgar","filing":"0000939767-25-000134","document":"wk-form4_1763079150.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000134/wk-form4_1763079150.xml","form_type":"4"}},{"id":1000913,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":10924,"kind":"person","name":"Beckerle Mary C","position":1,"cik":"0001520181","reported_name":"Beckerle Mary C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-11-14T00:12:33.000Z","date":"2025-11-11","kind":"sale","planned":false,"acquired":false,"shares":18838,"price":41.9,"value":789312.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $41.81 to $42.02. Reporting Person undertakes to provide Exelixis, Inc., any security\nholder 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\nfootnote 2 to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"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."}],"balance_after":21380,"source":{"system":"sec-edgar","filing":"0000939767-25-000134","document":"wk-form4_1763079150.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000134/wk-form4_1763079150.xml","form_type":"4"}},{"id":1000912,"issuer":{"id":3386,"kind":"organization","name":"EXELIXIS, INC."},"owners":[{"id":10924,"kind":"person","name":"Beckerle Mary C","position":1,"cik":"0001520181","reported_name":"Beckerle Mary C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-11-14T00:12:33.000Z","date":"2025-11-11","kind":"sale","planned":false,"acquired":false,"shares":5784,"price":42.03,"value":243101.52,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"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."}],"balance_after":40218,"source":{"system":"sec-edgar","filing":"0000939767-25-000134","document":"wk-form4_1763079150.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/939767/000093976725000134/wk-form4_1763079150.xml","form_type":"4"}}],"next_cursor":"2025-11-14T00:12:33.000000Z,1000912"}