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These shares were sold in multiple transactions at prices ranging from $29.30 to $29.46, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":822240,"source":{"system":"sec-edgar","filing":"0001422996-26-000006","document":"wk-form4_1783978603.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299626000006/wk-form4_1783978603.xml","form_type":"4"}},{"id":710617,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-07-13T21:36:46.000Z","date":"2026-07-10","kind":"sale","planned":true,"acquired":false,"shares":19799,"price":28.608,"value":566409.792,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.17 to $29.01, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":822508,"source":{"system":"sec-edgar","filing":"0001422996-26-000006","document":"wk-form4_1783978603.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299626000006/wk-form4_1783978603.xml","form_type":"4"}},{"id":710616,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-07-13T21:36:46.000Z","date":"2026-07-09","kind":"sale","planned":true,"acquired":false,"shares":48502,"price":30.053,"value":1457630.606,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.86 to $30.57, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":842307,"source":{"system":"sec-edgar","filing":"0001422996-26-000006","document":"wk-form4_1783978603.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299626000006/wk-form4_1783978603.xml","form_type":"4"}},{"id":727708,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-06-24T21:41:56.000Z","date":"2026-06-24","kind":"sale","planned":true,"acquired":false,"shares":6431,"price":29.6595,"value":190740.2445,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 27, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.50 to $29.8050, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":890809,"source":{"system":"sec-edgar","filing":"0001610717-26-000294","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000161071726000294/form4.xml","form_type":"4"}},{"id":727707,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-06-24T21:41:56.000Z","date":"2026-06-23","kind":"sale","planned":true,"acquired":false,"shares":1697,"price":28.0612,"value":47619.8564,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 27, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.0050 to $28.1550, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":897240,"source":{"system":"sec-edgar","filing":"0001610717-26-000294","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000161071726000294/form4.xml","form_type":"4"}},{"id":727706,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-06-24T21:41:56.000Z","date":"2026-06-23","kind":"sale","planned":true,"acquired":false,"shares":14067,"price":27.6875,"value":389480.0625,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 27, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.01 to $28.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":898937,"source":{"system":"sec-edgar","filing":"0001610717-26-000294","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000161071726000294/form4.xml","form_type":"4"}},{"id":727705,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-06-24T21:41:56.000Z","date":"2026-06-22","kind":"sale","planned":true,"acquired":false,"shares":9236,"price":27.0313,"value":249661.0868,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 27, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.00 to $27.14, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":913004,"source":{"system":"sec-edgar","filing":"0001610717-26-000294","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000161071726000294/form4.xml","form_type":"4"}},{"id":931190,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Stock Option (right to 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These shares were sold in multiple transactions at prices ranging from $22.04 to $22.985, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":922340,"source":{"system":"sec-edgar","filing":"0001422996-26-000002","document":"wk-form4_1767820531.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299626000002/wk-form4_1767820531.xml","form_type":"4"}},{"id":944547,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-01-07T21:15:35.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":29670,"price":21.34,"value":633157.8,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 8, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.975 to $21.84, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":924393,"source":{"system":"sec-edgar","filing":"0001422996-26-000002","document":"wk-form4_1767820531.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299626000002/wk-form4_1767820531.xml","form_type":"4"}},{"id":963184,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2025-12-18T22:35:08.000Z","date":"2025-12-17","kind":"sale","planned":true,"acquired":false,"shares":9983,"price":22.1595,"value":221218.2885,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares sold by the issuer on the reporting person's behalf to cover tax withholding obligations in connection with the vesting of certain RSUs (previously reported in Table I) following the date of grant. The sale occurred automatically pursuant to the Issuer's equity administration policy, which was implemented on May 22, 2025, and does not represent a discretionary trade by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.92 to $22.42, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes the unvested portion of the reporting person's RSU grants."}],"balance_after":346012,"source":{"system":"sec-edgar","filing":"0001422996-25-000015","document":"wk-form4_1766097305.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299625000015/wk-form4_1766097305.xml","form_type":"4"}},{"id":963183,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2025-12-18T22:35:08.000Z","date":"2025-12-16","kind":"sale","planned":true,"acquired":false,"shares":11225,"price":21.8843,"value":245651.2675,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares sold by the issuer on the reporting person's behalf to cover tax withholding obligations in connection with the vesting of certain RSUs (previously reported in Table I) following the date of grant. The sale occurred automatically pursuant to the Issuer's equity administration policy, which was implemented on May 22, 2025, and does not represent a discretionary trade by the reporting person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.42 to $22.39, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes the unvested portion of the reporting person's RSU grants."}],"balance_after":355995,"source":{"system":"sec-edgar","filing":"0001422996-25-000015","document":"wk-form4_1766097305.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299625000015/wk-form4_1766097305.xml","form_type":"4"}},{"id":979100,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2025-12-05T21:15:26.000Z","date":"2025-12-04","kind":"sale","planned":true,"acquired":false,"shares":82997,"price":24.7069,"value":2050598.5793,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 8, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.35 to $25.15, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 this footnote."}],"balance_after":954063,"source":{"system":"sec-edgar","filing":"0001422996-25-000011","document":"wk-form4_1764969323.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299625000011/wk-form4_1764969323.xml","form_type":"4"}},{"id":993868,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2025-11-19T21:39:10.000Z","date":"2025-11-18","kind":"sale","planned":true,"acquired":false,"shares":5050,"price":19.75,"value":99737.5,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 8, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.48 to $20.17, inclusive. The reporting person undertakes to\nprovide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price\nwithin the ranges set forth in this footnote."}],"balance_after":1037060,"source":{"system":"sec-edgar","filing":"0001422996-25-000009","document":"wk-form4_1763588347.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724521/000142299625000009/wk-form4_1763588347.xml","form_type":"4"}},{"id":993867,"issuer":{"id":4104,"kind":"organization","name":"Arcus Biosciences, Inc."},"owners":[{"id":30815,"kind":"person","name":"Jaen Juan C.","position":1,"cik":"0001422996","reported_name":"Jaen Juan C.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2025-11-19T21:39:10.000Z","date":"2025-11-17","kind":"sale","planned":true,"acquired":false,"shares":7836,"price":20.713,"value":162307.068,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 8, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.65 to $20.82, inclusive. 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