{"transactions":[{"id":947282,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2026-01-06T16:18:28.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":71000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This option vests as to 25% on January 2, 2027. The remainder of the underlying shares will vest in 36 equal monthly installments thereafter."}],"balance_after":71000,"derivative":{"exercise_price":6.76,"expiration_date":"2036-01-01","underlying":"Common  Stock","underlying_shares":71000},"source":{"system":"sec-edgar","filing":"0001453687-26-000031","document":"wk-form4_1767734302.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368726000031/wk-form4_1767734302.xml","form_type":"4"}},{"id":947281,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2026-01-06T16:18:28.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":24000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of common stock, which will vest as to 25% on January 2, 2027. The remainder of the underlying shares will vest in three equal annual installments thereafter so that the underlying shares will be fully vested on January 2, 2030."}],"balance_after":94226,"source":{"system":"sec-edgar","filing":"0001453687-26-000031","document":"wk-form4_1767734302.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368726000031/wk-form4_1767734302.xml","form_type":"4"}},{"id":955372,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2026-01-02T16:03:30.000Z","date":"2025-12-30","kind":"exercise","planned":false,"acquired":false,"shares":7500,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On November 13, 2023, the issuer acquired the Delaware corporation which was then-known as Cartesian Therapeutics, Inc. (\"Old Cartesian\") in accordance with the terms of an Agreement and Plan of Merger, dated November 13, 2023. Options to purchase Old Cartesian common stock held by the reporting person were converted into options to purchase shares of the issuer's common stock in connection with the merger."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options are currently fully vested and exercisable."}],"balance_after":19369,"derivative":{"exercise_price":3.3,"expiration_date":"2031-04-25","underlying":"Common  Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001453687-26-000002","document":"wk-form4_1767387807.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368726000002/wk-form4_1767387807.xml","form_type":"4"}},{"id":955371,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2026-01-02T16:03:30.000Z","date":"2025-12-30","kind":"exercise","planned":false,"acquired":true,"shares":7500,"price":3.3,"value":24750.0,"ownership":{"direct":true},"balance_after":70226,"source":{"system":"sec-edgar","filing":"0001453687-26-000002","document":"wk-form4_1767387807.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368726000002/wk-form4_1767387807.xml","form_type":"4"}},{"id":983855,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2025-12-02T16:02:47.000Z","date":"2025-11-28","kind":"exercise","planned":false,"acquired":false,"shares":7500,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On November 13, 2023, the issuer acquired the Delaware corporation which was then-known as Cartesian Therapeutics, Inc. (\"Old Cartesian\") in accordance with the terms of an Agreement and Plan of Merger, dated November 13, 2023. Options to purchase Old Cartesian common stock held by the reporting person were converted into options to purchase shares of the issuer's common stock in connection with the merger."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options are currently fully vested and exercisable."}],"balance_after":26869,"derivative":{"exercise_price":3.3,"expiration_date":"2031-04-25","underlying":"Common  Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001453687-25-000130","document":"wk-form4_1764709364.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000130/wk-form4_1764709364.xml","form_type":"4"}},{"id":983854,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2025-12-02T16:02:47.000Z","date":"2025-11-28","kind":"exercise","planned":false,"acquired":true,"shares":7500,"price":3.3,"value":24750.0,"ownership":{"direct":true},"balance_after":62726,"source":{"system":"sec-edgar","filing":"0001453687-25-000130","document":"wk-form4_1764709364.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000130/wk-form4_1764709364.xml","form_type":"4"}},{"id":1149527,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2025-05-14T16:15:52.000Z","date":"2025-05-12","kind":"exercise","planned":false,"acquired":false,"shares":7500,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On November 13, 2023, the issuer acquired the Delaware corporation which was then-known as Cartesian Therapeutics, Inc. (\"Old Cartesian\") in accordance with the terms of an Agreement and Plan of Merger, dated November 13, 2023. Options to purchase Old Cartesian common stock held by the reporting person were converted into options to purchase shares of the issuer's common stock in connection with the merger."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options are currently fully vested and exercisable."}],"balance_after":34369,"derivative":{"exercise_price":3.3,"expiration_date":"2031-04-25","underlying":"Common  Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001453687-25-000089","document":"wk-form4_1747253745.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000089/wk-form4_1747253745.xml","form_type":"4"}},{"id":1149526,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2025-05-14T16:15:52.000Z","date":"2025-05-12","kind":"exercise","planned":false,"acquired":true,"shares":7500,"price":3.3,"value":24750.0,"ownership":{"direct":true},"balance_after":55226,"source":{"system":"sec-edgar","filing":"0001453687-25-000089","document":"wk-form4_1747253745.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000089/wk-form4_1747253745.xml","form_type":"4"}},{"id":1171126,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2025-04-16T16:35:51.000Z","date":"2025-04-15","kind":"exercise","planned":false,"acquired":false,"shares":7500,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On November 13, 2023, the issuer acquired the Delaware corporation which was then-known as Cartesian Therapeutics, Inc. (\"Old Cartesian\") in accordance with the terms of an Agreement and Plan of Merger, dated November 13, 2023. Options to purchase Old Cartesian common stock held by the reporting person were converted into options to purchase shares of the issuer's common stock in connection with the merger."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options are currently fully vested and exercisable."}],"balance_after":41869,"derivative":{"exercise_price":3.3,"expiration_date":"2031-04-25","underlying":"Common  Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001453687-25-000068","document":"wk-form4_1744835744.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000068/wk-form4_1744835744.xml","form_type":"4"}},{"id":1171125,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2025-04-16T16:35:51.000Z","date":"2025-04-15","kind":"exercise","planned":false,"acquired":true,"shares":7500,"price":3.3,"value":24750.0,"ownership":{"direct":true},"balance_after":47726,"source":{"system":"sec-edgar","filing":"0001453687-25-000068","document":"wk-form4_1744835744.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000068/wk-form4_1744835744.xml","form_type":"4"}},{"id":1308440,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2025-01-07T20:05:11.000Z","date":"2025-01-06","kind":"sale","planned":false,"acquired":false,"shares":906,"price":16.8322,"value":15249.9732,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares sold to satisfy withholding tax obligations upon the vesting of restricted stock units and to cover related broker fees."}],"balance_after":40226,"source":{"system":"sec-edgar","filing":"0001453687-25-000037","document":"wk-form4_1736298303.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000037/wk-form4_1736298303.xml","form_type":"4"}},{"id":1308439,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2025-01-07T20:05:11.000Z","date":"2025-01-03","kind":"sale","planned":false,"acquired":false,"shares":891,"price":16.7219,"value":14899.2129,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares sold to satisfy withholding tax obligations upon the vesting of restricted stock units and to cover related broker fees."}],"balance_after":41132,"source":{"system":"sec-edgar","filing":"0001453687-25-000037","document":"wk-form4_1736298303.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000037/wk-form4_1736298303.xml","form_type":"4"}},{"id":1311250,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2025-01-06T16:21:04.000Z","date":"2025-01-02","kind":"grant","planned":false,"acquired":true,"shares":47400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This option vests as to 25% on January 2, 2026. The remainder of the underlying shares will vest in three equal annual installments thereafter so that the underlying shares will be fully vested on January 2, 2029."}],"balance_after":47400,"derivative":{"exercise_price":16.93,"expiration_date":"2035-01-01","underlying":"Common  Stock","underlying_shares":47400},"source":{"system":"sec-edgar","filing":"0001453687-25-000026","document":"wk-form4_1736198457.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000026/wk-form4_1736198457.xml","form_type":"4"}},{"id":1311249,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operations Officer"}}],"security":"Common  Stock","published_at":"2025-01-06T16:21:04.000Z","date":"2025-01-02","kind":"grant","planned":false,"acquired":true,"shares":16100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive one share of common stock, which will vest as to 25% on January 2, 2026. The remainder of the underlying shares will vest in three equal annual installments thereafter so that the underlying shares will be fully vested on January 2, 2029."}],"balance_after":42023,"source":{"system":"sec-edgar","filing":"0001453687-25-000026","document":"wk-form4_1736198457.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368725000026/wk-form4_1736198457.xml","form_type":"4"}},{"id":1320510,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Head of Manufacturing"}}],"security":"Stock Option (Right to Buy)","published_at":"2024-12-30T16:11:59.000Z","date":"2024-12-26","kind":"exercise","planned":false,"acquired":false,"shares":7650,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On November 13, 2023, the issuer acquired the private Delaware corporation which was then known as Cartesian Therapeutics, Inc. (\"Old Cartesian\") in accordance with the terms of an Agreement and Plan of Merger, dated November 13, 2023. Options to purchase Old Cartesian common stock held by the reporting person were converted into options to purchase shares of Common Stock in connection with the merger."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"These options are currently exercisable for an additional 35,114 shares of Common Stock and become exercisable for a further 14,255 shares of Common Stock on March 22, 2025."}],"balance_after":49369,"derivative":{"exercise_price":3.3,"expiration_date":"2031-04-25","underlying":"Common  Stock","underlying_shares":7650},"source":{"system":"sec-edgar","filing":"0001453687-24-000149","document":"wk-form4_1735593112.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368724000149/wk-form4_1735593112.xml","form_type":"4"}},{"id":1320509,"issuer":{"id":6015,"kind":"organization","name":"Cartesian Therapeutics, Inc."},"owners":[{"id":70053,"kind":"person","name":"English Emily","position":1,"cik":"0002019791","reported_name":"English Emily","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Head of Manufacturing"}}],"security":"Common  Stock","published_at":"2024-12-30T16:11:59.000Z","date":"2024-12-26","kind":"exercise","planned":false,"acquired":true,"shares":7650,"price":3.3,"value":25245.0,"ownership":{"direct":true},"balance_after":25923,"source":{"system":"sec-edgar","filing":"0001453687-24-000149","document":"wk-form4_1735593112.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2019791/000145368724000149/wk-form4_1735593112.xml","form_type":"4"}}]}