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The Reporting Person undertakes to provide to the Issuer, any shareholder 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 range set forth in this footnote."}],"balance_after":115942,"source":{"system":"sec-edgar","filing":"0000950170-24-104820","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1789972/000095017024104820/ownership.xml","form_type":"4"}},{"id":1436763,"issuer":{"id":4766,"kind":"organization","name":"Cullinan Therapeutics, Inc.","symbol":"CGEM"},"owners":[{"id":29279,"kind":"person","name":"Thistle Mary","position":1,"cik":"0001317917","reported_name":"Thistle Mary","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2024-08-09T21:00:03.000Z","date":"2024-08-08","kind":"grant","planned":false,"acquired":true,"shares":25743,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option represents a right to purchase a total of 25,743 shares of the Issuer's common stock, which shall vest as to one-third of the shares underlying the option on each of the first, second and third anniversaries of the grant date of the award, subject to the Reporting Person's continued service as a director on each such vesting date."}],"balance_after":25743,"derivative":{"exercise_price":16.38,"expiration_date":"2034-08-08","underlying":"Common Stock","underlying_shares":25743},"source":{"system":"sec-edgar","filing":"0000950170-24-094861","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1317917/000095017024094861/ownership.xml","form_type":"4"}},{"id":1457229,"issuer":{"id":4766,"kind":"organization","name":"Cullinan Therapeutics, Inc.","symbol":"CGEM"},"owners":[{"id":23207,"kind":"person","name":"Michaelson Jennifer","position":1,"cik":"0001838061","reported_name":"Michaelson Jennifer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Common Stock","published_at":"2024-07-09T21:30:03.000Z","date":"2024-07-05","kind":"sale","planned":true,"acquired":false,"shares":8000,"price":16.33,"value":130640.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on January 5, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $15.97 to $16.77. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 range set forth in this footnote."}],"balance_after":123942,"source":{"system":"sec-edgar","filing":"0000950170-24-082485","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1789972/000095017024082485/ownership.xml","form_type":"4"}},{"id":1461977,"issuer":{"id":4766,"kind":"organization","name":"Cullinan Therapeutics, Inc.","symbol":"CGEM"},"owners":[{"id":23207,"kind":"person","name":"Michaelson Jennifer","position":1,"cik":"0001838061","reported_name":"Michaelson Jennifer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Scientific Officer"}}],"security":"Common Stock","published_at":"2024-07-02T23:30:03.000Z","date":"2024-07-01","kind":"grant","planned":false,"acquired":true,"shares":2360,"price":9,"value":21240.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In accordance with the ESPP, the shares were purchased based on 85% of the closing price of the Issuer's common stock on January 2, 2024."},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The reporting person is voluntarily reporting the acquisition of shares of the Issuer's common stock pursuant to the Issuer's 2021 Employee Stock Purchase Plan (the \"ESPP\"), for the purchase period of January 1, 2024 through June 30, 2024. This transaction is also exempt under Rule 16b-3(c)."}],"balance_after":131942,"source":{"system":"sec-edgar","filing":"0000950170-24-080961","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1789972/000095017024080961/ownership.xml","form_type":"4"}},{"id":1468048,"issuer":{"id":4766,"kind":"organization","name":"Cullinan Therapeutics, Inc.","symbol":"CGEM"},"owners":[{"id":36319,"kind":"person","name":"Webster Stephen W","position":1,"cik":"0001438421","reported_name":"Webster Stephen W","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2024-06-27T23:00:06.000Z","date":"2024-06-26","kind":"grant","planned":false,"acquired":true,"shares":15806,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option represents a right to purchase a total of 15,806 shares of the Issuer's Common Stock, which shall vest in full on the earlier of (i) June 26, 2025 or (ii) the date of the Issuer's next annual meeting, subject to the Reporting Person's continued service as a director on such vesting date."}],"balance_after":15806,"derivative":{"exercise_price":16.5,"expiration_date":"2034-06-26","underlying":"Common Stock","underlying_shares":15806},"source":{"system":"sec-edgar","filing":"0000950170-24-078678","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1438421/000095017024078678/ownership.xml","form_type":"4"}}],"next_cursor":"2024-06-27T23:00:06.000000Z,1468048"}