{"transactions":[{"id":740042,"issuer":{"id":5757,"kind":"organization","name":"Lyell Immunopharma, Inc.","symbol":"LYEL"},"owners":[{"id":38775,"kind":"person","name":"Ramachandra Sumant","position":1,"cik":"0001439368","reported_name":"Ramachandra Sumant","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Option (right to buy)","published_at":"2026-06-12T20:23:41.000Z","date":"2026-06-10","kind":"grant","planned":false,"acquired":true,"shares":9250,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option shares shall vest on the earlier of (a) the date of the next annual meeting of the stockholders that occurs following June 10, 2026 (or the date immediately prior to such date if the Reporting Person's service as a director ends at such annual meeting due to the Reporting Person's failure to be reelected or the Reporting Person not standing for re-election); or (b) the first anniversary of June 10, 2026, subject to the Reporting Person providing continuous service through such date."}],"balance_after":9250,"derivative":{"exercise_price":13.22,"expiration_date":"2036-06-09","underlying":"Common Stock","underlying_shares":9250},"source":{"system":"sec-edgar","filing":"0001439368-26-000002","document":"form4-06122026_080637.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1806952/000143936826000002/form4-06122026_080637.xml","form_type":"4"}},{"id":1142912,"issuer":{"id":5757,"kind":"organization","name":"Lyell Immunopharma, Inc.","symbol":"LYEL"},"owners":[{"id":38775,"kind":"person","name":"Ramachandra Sumant","position":1,"cik":"0001439368","reported_name":"Ramachandra Sumant","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Option (right to buy)","published_at":"2025-05-19T22:41:48.000Z","date":"2025-05-15","kind":"grant","planned":false,"acquired":true,"shares":130000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option shares shall vest on the earlier of (a) the date of the next annual meeting of the stockholders that occurs following May 15, 2025 (or the date immediately prior to such date if the Reporting Person's service as a director ends at such annual meeting due to the Reporting Person's failure to be reelected or the Reporting Person not standing for re-election); or (b) the first anniversary of May 15, 2025, subject to the Reporting Person providing continuous service through such date."}],"balance_after":130000,"derivative":{"exercise_price":0.4017,"expiration_date":"2035-05-14","underlying":"Common Stock","underlying_shares":130000},"source":{"system":"sec-edgar","filing":"0001415889-25-013705","document":"form4-05192025_100544.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1806952/000141588925013705/form4-05192025_100544.xml","form_type":"4"}},{"id":1192308,"issuer":{"id":5757,"kind":"organization","name":"Lyell Immunopharma, Inc.","symbol":"LYEL"},"owners":[{"id":38775,"kind":"person","name":"Ramachandra Sumant","position":1,"cik":"0001439368","reported_name":"Ramachandra Sumant","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-25T22:46:17.000Z","date":"2025-03-21","kind":"purchase","planned":false,"acquired":true,"shares":200000,"price":0.5761,"value":115220.0,"ownership":{"direct":false,"nature":"Grantor and Trustee"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported above reflects the weighted average price of the shares purchased. These shares were purchased in multiple transactions at prices ranging from $0.5487 to $0.5879, inclusive. Upon request from the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares purchased at each separate price within the range set forth in this range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares held by the Sumant Ramachandra Rev Trust DTD 01/24/12.  The Reporting Person is grantor and trustee of the Sumant Ramachandra Rev Trust DTD 01/24/12."}],"balance_after":200000,"source":{"system":"sec-edgar","filing":"0001415889-25-008942","document":"form4-03252025_100313.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1806952/000141588925008942/form4-03252025_100313.xml","form_type":"4"}},{"id":1378267,"issuer":{"id":5757,"kind":"organization","name":"Lyell Immunopharma, Inc.","symbol":"LYEL"},"owners":[{"id":38775,"kind":"person","name":"Ramachandra Sumant","position":1,"cik":"0001439368","reported_name":"Ramachandra Sumant","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Option (right to buy)","published_at":"2024-11-01T20:56:39.000Z","date":"2024-10-31","kind":"grant","planned":false,"acquired":true,"shares":260000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"One thirty-sixth (1/36th) of the shares of common stock subject to the option shall vest on a monthly basis following the date of grant on the same day of the month as such grant date (or on the last day of the month, if there is no corresponding day in such month), subject to the reporting person providing service through the applicable vesting date."}],"balance_after":260000,"derivative":{"exercise_price":0.9603,"expiration_date":"2034-10-30","underlying":"Common Stock","underlying_shares":260000},"source":{"system":"sec-edgar","filing":"0001415889-24-025912","document":"form4-11012024_081136.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1806952/000141588924025912/form4-11012024_081136.xml","form_type":"4"}}]}