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These shares were bought in multiple transactions within the range of $43.6287 to $44.3384. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by the Casdin Partners Master Fund, L.P. 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The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The Master Fund has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 50,000 notional shares of the Issuer's Class A Common Stock, at a price of $39.6602 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Master Fund has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 50,000 notional shares of the Issuer's Class A Common Stock, at a price of $39.6602 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Master Fund has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 50,000 notional shares of the Issuer's Class A Common Stock, at a price of $39.6602 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Swap Agreements are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":850000,"derivative":{"underlying":"Class A Common Stock","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0000919574-26-002845","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1818331/000091957426002845/ownership.xml","form_type":"4"}},{"id":784824,"issuer":{"id":1634,"kind":"organization","name":"GeneDx Holdings Corp.","symbol":"WGS"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Cash Settled Swap","published_at":"2026-05-12T00:43:39.000Z","date":"2026-05-08","kind":"purchase","planned":false,"acquired":true,"shares":300000,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The Master Fund has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The Master Fund has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Master Fund has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Master Fund has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Swap Agreements are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":800000,"derivative":{"underlying":"Class A Common Stock","underlying_shares":300000},"source":{"system":"sec-edgar","filing":"0000919574-26-002845","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1818331/000091957426002845/ownership.xml","form_type":"4"}},{"id":784823,"issuer":{"id":1634,"kind":"organization","name":"GeneDx Holdings Corp.","symbol":"WGS"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Cash Settled Swap","published_at":"2026-05-12T00:43:39.000Z","date":"2026-05-07","kind":"purchase","planned":false,"acquired":true,"shares":500000,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Casdin Partners Master Fund, L.P. (the \"Master Fund\") has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Casdin Partners Master Fund, L.P. (the \"Master Fund\") has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Casdin Partners Master Fund, L.P. (the \"Master Fund\") has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Casdin Partners Master Fund, L.P. (the \"Master Fund\") has entered into certain cash-settled swap agreements (the \"Swap Agreements\"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Swap Agreements are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":500000,"derivative":{"underlying":"Class A Common Stock","underlying_shares":500000},"source":{"system":"sec-edgar","filing":"0000919574-26-002845","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1818331/000091957426002845/ownership.xml","form_type":"4"}},{"id":980545,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":2,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":3,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":4,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":5,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":7,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":8,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.001 par value per share","published_at":"2025-12-05T01:59:44.000Z","date":"2025-12-04","kind":"purchase","planned":false,"acquired":true,"shares":150000,"price":1.4468,"value":217020.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4331 to $1.4588. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":72100000,"source":{"system":"sec-edgar","filing":"0000919574-25-007243","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957425007243/ownership.xml","form_type":"4"}},{"id":980544,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":2,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":3,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":4,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":5,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":7,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":8,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.001 par value per share","published_at":"2025-12-05T01:59:44.000Z","date":"2025-12-03","kind":"purchase","planned":false,"acquired":true,"shares":75000,"price":1.4405,"value":108037.5,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4403 to $1.4406. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":71950000,"source":{"system":"sec-edgar","filing":"0000919574-25-007243","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957425007243/ownership.xml","form_type":"4"}},{"id":980543,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":2,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":3,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":4,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":5,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":7,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":8,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.001 par value per share","published_at":"2025-12-05T01:59:44.000Z","date":"2025-12-02","kind":"purchase","planned":false,"acquired":true,"shares":125000,"price":1.4201,"value":177512.5,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4050 to $1.4351. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":71875000,"source":{"system":"sec-edgar","filing":"0000919574-25-007243","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957425007243/ownership.xml","form_type":"4"}},{"id":987500,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":2,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":3,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":4,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":5,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":7,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":8,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, $0.001 par value per share","published_at":"2025-11-26T21:58:37.000Z","date":"2025-11-25","kind":"purchase","planned":false,"acquired":true,"shares":7550000,"price":1.3031,"value":9838405.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.30 to $1.3843. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":71750000,"source":{"system":"sec-edgar","filing":"0000919574-25-007187","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957425007187/ownership.xml","form_type":"4"}},{"id":987499,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":2,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":3,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":4,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":5,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":7,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":8,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, $0.001 par value per share","published_at":"2025-11-26T21:58:37.000Z","date":"2025-11-24","kind":"purchase","planned":false,"acquired":true,"shares":150000,"price":1.4325,"value":214875.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4290 to $1.4396. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. 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These shares were bought in multiple transactions within the range of $1.3075 to $1.3118. The Reporting Persons 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":59466780,"source":{"system":"sec-edgar","filing":"0000919574-25-004979","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957425004979/ownership.xml","form_type":"4"}},{"id":1068297,"issuer":{"id":4614,"kind":"organization","name":"BIOLIFE SOLUTIONS INC","symbol":"BLFS"},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":2,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":3,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":4,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.001 per share","published_at":"2025-08-13T22:43:14.000Z","date":"2025-08-11","kind":"sale","planned":false,"acquired":false,"shares":500000,"price":22.6,"value":11300000.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin Capital\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (\"Casdin GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP."}],"balance_after":7207165,"source":{"system":"sec-edgar","filing":"0000919574-25-004702","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/834365/000091957425004702/ownership.xml","form_type":"4"}},{"id":1114249,"issuer":{"id":4614,"kind":"organization","name":"BIOLIFE SOLUTIONS INC","symbol":"BLFS"},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":2,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":3,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":4,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.001 per share","published_at":"2025-06-13T00:27:44.000Z","date":"2025-06-10","kind":"sale","planned":false,"acquired":false,"shares":1000000,"price":23.8,"value":23800000.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin Capital\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (\"Casdin GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP."}],"balance_after":7707165,"source":{"system":"sec-edgar","filing":"0000919574-25-003572","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/834365/000091957425003572/ownership.xml","form_type":"4"}},{"id":1147601,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Options (Right to buy)","published_at":"2025-05-15T16:51:03.000Z","date":"2025-05-13","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":33400,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The securities were owned directly by Eli Casdin."}],"balance_after":0,"derivative":{"exercise_price":4.54,"underlying":"Common Stock, par value $0.0001 per share","underlying_shares":33400},"source":{"system":"sec-edgar","filing":"0000919574-25-003264","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957425003264/ownership.xml","form_type":"4"}},{"id":1147600,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Options (Right to buy)","published_at":"2025-05-15T16:51:03.000Z","date":"2025-05-13","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":12050,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Each option to purchase Company Common Stock (\"Company Option\"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The securities were owned directly by Eli Casdin."}],"balance_after":0,"derivative":{"exercise_price":3.93,"underlying":"Common Stock, par value $0.0001 per share","underlying_shares":12050},"source":{"system":"sec-edgar","filing":"0000919574-25-003264","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957425003264/ownership.xml","form_type":"4"}},{"id":1147599,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.0001 per share","published_at":"2025-05-15T16:51:03.000Z","date":"2025-05-13","kind":"other","planned":false,"acquired":false,"shares":2000000,"price":5,"value":10000000.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents securities that were tendered in connection with the Agreement and Plan of Merger (the \"Merger Agreement\"), dated March 10, 2025, by and among 2seventy bio, Inc. (the \"Company\"), Daybreak Merger Sub Inc. (\"Merger Sub\") and Bristol-Myers Squibb Company (\"Parent\"). Following completion of a cash tender offer by Merger Sub to acquire all of the issued and outstanding shares of the Company's common stock, par value $0.0001 per share (the \"Company Common Stock\") for $5.00 per share (the \"Merger Consideration\"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a whole owned subsidiary of Parent (the \"Merger\")."},{"field":"kind","element":"transactionCoding","label":"F2","text":"cont'd from footnote (1): Each restricted stock unit in respect of Company Common Stock (\"Company RSU Award\"), whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company RSU Award immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the Merger Consideration. Additionally, effective as of the Effective Time and as a result of the Merger, Eli Casdin ceased to be a member of the Company's board of directors."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents securities that were tendered in connection with the Agreement and Plan of Merger (the \"Merger Agreement\"), dated March 10, 2025, by and among 2seventy bio, Inc. (the \"Company\"), Daybreak Merger Sub Inc. (\"Merger Sub\") and Bristol-Myers Squibb Company (\"Parent\"). Following completion of a cash tender offer by Merger Sub to acquire all of the issued and outstanding shares of the Company's common stock, par value $0.0001 per share (the \"Company Common Stock\") for $5.00 per share (the \"Merger Consideration\"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a whole owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"cont'd from footnote (1): Each restricted stock unit in respect of Company Common Stock (\"Company RSU Award\"), whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company RSU Award immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the Merger Consideration. Additionally, effective as of the Effective Time and as a result of the Merger, Eli Casdin ceased to be a member of the Company's board of directors."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The securities were owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to have been indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000919574-25-003264","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957425003264/ownership.xml","form_type":"4"}},{"id":1147598,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.0001 per share","published_at":"2025-05-15T16:51:03.000Z","date":"2025-05-13","kind":"other","planned":false,"acquired":false,"shares":22625,"price":5,"value":113125.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents securities that were tendered in connection with the Agreement and Plan of Merger (the \"Merger Agreement\"), dated March 10, 2025, by and among 2seventy bio, Inc. (the \"Company\"), Daybreak Merger Sub Inc. (\"Merger Sub\") and Bristol-Myers Squibb Company (\"Parent\"). Following completion of a cash tender offer by Merger Sub to acquire all of the issued and outstanding shares of the Company's common stock, par value $0.0001 per share (the \"Company Common Stock\") for $5.00 per share (the \"Merger Consideration\"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a whole owned subsidiary of Parent (the \"Merger\")."},{"field":"kind","element":"transactionCoding","label":"F2","text":"cont'd from footnote (1): Each restricted stock unit in respect of Company Common Stock (\"Company RSU Award\"), whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company RSU Award immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the Merger Consideration. Additionally, effective as of the Effective Time and as a result of the Merger, Eli Casdin ceased to be a member of the Company's board of directors."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents securities that were tendered in connection with the Agreement and Plan of Merger (the \"Merger Agreement\"), dated March 10, 2025, by and among 2seventy bio, Inc. (the \"Company\"), Daybreak Merger Sub Inc. (\"Merger Sub\") and Bristol-Myers Squibb Company (\"Parent\"). Following completion of a cash tender offer by Merger Sub to acquire all of the issued and outstanding shares of the Company's common stock, par value $0.0001 per share (the \"Company Common Stock\") for $5.00 per share (the \"Merger Consideration\"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a whole owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"cont'd from footnote (1): Each restricted stock unit in respect of Company Common Stock (\"Company RSU Award\"), whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company RSU Award immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the Merger Consideration. Additionally, effective as of the Effective Time and as a result of the Merger, Eli Casdin ceased to be a member of the Company's board of directors."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The securities were owned directly by Eli Casdin."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000919574-25-003264","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957425003264/ownership.xml","form_type":"4"}},{"id":1174996,"issuer":{"id":4614,"kind":"organization","name":"BIOLIFE SOLUTIONS INC","symbol":"BLFS"},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":2,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":3,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":4,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $.001 per share","published_at":"2025-04-09T21:08:30.000Z","date":"2025-04-07","kind":"other","planned":false,"acquired":true,"shares":27994,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Received in exchange for shares of common stock of PanThera CryoSolutions, Inc. (\"PanThera\") pursuant to the acquisition of PanThera by Biolife Solutions Inc (the \"Company\"). Per the terms of the acquisition, the Company purchased 90% of PanTHERA common shares it did not own for $9.3 million in cash and 241,355 shares of the Company's Common Stock, par value $.001 per share. The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Received in exchange for shares of common stock of PanThera CryoSolutions, Inc. (\"PanThera\") pursuant to the acquisition of PanThera by Biolife Solutions Inc (the \"Company\"). Per the terms of the acquisition, the Company purchased 90% of PanTHERA common shares it did not own for $9.3 million in cash and 241,355 shares of the Company's Common Stock, par value $.001 per share. The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Received in exchange for shares of common stock of PanThera CryoSolutions, Inc. (\"PanThera\") pursuant to the acquisition of PanThera by Biolife Solutions Inc (the \"Company\"). Per the terms of the acquisition, the Company purchased 90% of PanTHERA common shares it did not own for $9.3 million in cash and 241,355 shares of the Company's Common Stock, par value $.001 per share. The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":8735159,"source":{"system":"sec-edgar","filing":"0000919574-25-002362","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/834365/000091957425002362/ownership.xml","form_type":"4"}},{"id":1230542,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin 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These shares were bought in multiple transactions within the range of $1.9464 to $1.9587. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. 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The Disgorging Parties agree to pay to Issuer, upon settlement of the purchase, an additional $6.58 than the amount reported on the Disgorging Parties' Form 4 filed on August 6, 2024 and August 13, 2024, which represents the full amount of the profit realized by the Disgorging Parties, as a result of their pecuniary interest in the entity what made the sale referenced above, in connection with the short-swing transaction."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.5516 to $1.605. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) the GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":51775821,"source":{"system":"sec-edgar","filing":"0000919574-24-004802","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424004802/ownership.xml","form_type":"4"}},{"id":1435088,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":3,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":5,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":7,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":82485,"kind":"person","name":"Casdin Amplify Fund, LP","position":8,"cik":"0002028254","reported_name":"Casdin Amplify Fund, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":9,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-14T00:15:32.000Z","date":"2024-08-13","kind":"purchase","planned":false,"acquired":true,"shares":550000,"price":1.6192,"value":890560.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The purchase of certain Shares reported herein were matchable under Section 16(b) of the Securities Exchange Act of 1934 with the sale of Shares at a price of $2.05 per share by an entity in which Casdin Capital, LLC (\"Casdin\"), Casdin Partners GP, LLC (the \"GP\") and Eli Casdin (collectively with Casdin and the GP, the \"Disgorging Parties\") had a pecuniary interest on the Disgorging Parties' Form 4 filed on June 21, 2024. The Disgorging Parties agree to pay to Issuer, upon settlement of the purchase, an additional $57.27 than the amount reported on the Disgorging Parties' Form 4 filed on August 6, 2024, which represents the full amount of the profit realized by the Disgorging Parties, as a result of their pecuniary interest in the entity what made the sale referenced above, in connection with the short-swing transaction."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.6151 to $1.6303. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) the GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":50575821,"source":{"system":"sec-edgar","filing":"0000919574-24-004593","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424004593/ownership.xml","form_type":"4"}},{"id":1435087,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":3,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":5,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":7,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":82485,"kind":"person","name":"Casdin Amplify Fund, LP","position":8,"cik":"0002028254","reported_name":"Casdin Amplify Fund, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":9,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-14T00:15:32.000Z","date":"2024-08-12","kind":"purchase","planned":false,"acquired":true,"shares":500000,"price":1.6412,"value":820600.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The purchase of certain Shares reported herein were matchable under Section 16(b) of the Securities Exchange Act of 1934 with the sale of Shares at a price of $2.05 per share by an entity in which Casdin Capital, LLC (\"Casdin\"), Casdin Partners GP, LLC (the \"GP\") and Eli Casdin (collectively with Casdin and the GP, the \"Disgorging Parties\") had a pecuniary interest on the Disgorging Parties' Form 4 filed on June 21, 2024. The Disgorging Parties agree to pay to Issuer, upon settlement of the purchase, an additional $57.27 than the amount reported on the Disgorging Parties' Form 4 filed on August 6, 2024, which represents the full amount of the profit realized by the Disgorging Parties, as a result of their pecuniary interest in the entity what made the sale referenced above, in connection with the short-swing transaction."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.6331 to $1.6978. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) the GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":50025821,"source":{"system":"sec-edgar","filing":"0000919574-24-004593","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424004593/ownership.xml","form_type":"4"}},{"id":1435086,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":3,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":5,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":6,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":7,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":82485,"kind":"person","name":"Casdin Amplify Fund, LP","position":8,"cik":"0002028254","reported_name":"Casdin Amplify Fund, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":9,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-14T00:15:32.000Z","date":"2024-08-09","kind":"purchase","planned":false,"acquired":true,"shares":525408,"price":1.6149,"value":848481.3792,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The purchase of certain Shares reported herein were matchable under Section 16(b) of the Securities Exchange Act of 1934 with the sale of Shares at a price of $2.05 per share by an entity in which Casdin Capital, LLC (\"Casdin\"), Casdin Partners GP, LLC (the \"GP\") and Eli Casdin (collectively with Casdin and the GP, the \"Disgorging Parties\") had a pecuniary interest on the Disgorging Parties' Form 4 filed on June 21, 2024. The Disgorging Parties agree to pay to Issuer, upon settlement of the purchase, an additional $57.27 than the amount reported on the Disgorging Parties' Form 4 filed on August 6, 2024, which represents the full amount of the profit realized by the Disgorging Parties, as a result of their pecuniary interest in the entity what made the sale referenced above, in connection with the short-swing transaction."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.611 to $1.62. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) the GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":49525821,"source":{"system":"sec-edgar","filing":"0000919574-24-004593","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424004593/ownership.xml","form_type":"4"}},{"id":1437103,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":82485,"kind":"person","name":"Casdin Amplify Fund, LP","position":3,"cik":"0002028254","reported_name":"Casdin Amplify Fund, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":4,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":5,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":6,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":7,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":8,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":9,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-10T01:34:17.000Z","date":"2024-08-08","kind":"purchase","planned":false,"acquired":true,"shares":569562,"price":1.6374,"value":932600.8188,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.565 to $1.68. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":49000413,"source":{"system":"sec-edgar","filing":"0000919574-24-004339","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424004339/ownership.xml","form_type":"4"}},{"id":1437102,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":82485,"kind":"person","name":"Casdin Amplify Fund, LP","position":3,"cik":"0002028254","reported_name":"Casdin Amplify Fund, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":4,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":5,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":6,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":7,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":8,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":9,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-10T01:34:17.000Z","date":"2024-08-07","kind":"purchase","planned":false,"acquired":true,"shares":500000,"price":1.5724,"value":786200.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.525 to $1.595. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC (\"Casdin\"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the \"GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":48430821,"source":{"system":"sec-edgar","filing":"0000919574-24-004339","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424004339/ownership.xml","form_type":"4"}},{"id":1439789,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":82485,"kind":"person","name":"Casdin Amplify Fund, LP","position":3,"cik":"0002028254","reported_name":"Casdin Amplify Fund, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":4,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":5,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":6,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":7,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":8,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":9,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-07T01:58:04.000Z","date":"2024-08-05","kind":"purchase","planned":false,"acquired":true,"shares":200000,"price":1.5839,"value":316780.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The purchase of Shares reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 200,000 Shares, with the sale of 200,000 shares of Issuer common stock at a price of $2.05 per share by an entity in which the Disgorging Parties had a pecuniary interest on the Disgorging Parties' Form 4 filed on June 21, 2024. The Disgorging Parties agreed to pay to Issuer, upon settlement of the purchase, $83.91 which represents the full amount of the profit realized by the Disgorging Parties, as a result of their pecuniary interest in the entity what made the sale referenced above, in connection with the short-swing transaction."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.5664 to $1.5997. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) the GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) the GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":47930821,"source":{"system":"sec-edgar","filing":"0000919574-24-004280","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424004280/ownership.xml","form_type":"4"}},{"id":1439788,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":82485,"kind":"person","name":"Casdin Amplify Fund, LP","position":3,"cik":"0002028254","reported_name":"Casdin Amplify Fund, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":4,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":5,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":72210,"kind":"person","name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","position":6,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":7,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72209,"kind":"person","name":"Casdin Private Growth Equity Fund II, L.P.","position":8,"cik":"0001891102","reported_name":"Casdin Private Growth Equity Fund II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":72212,"kind":"person","name":"Casdin Private Growth Equity Fund, L.P.","position":9,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-08-07T01:58:04.000Z","date":"2024-08-02","kind":"purchase","planned":false,"acquired":true,"shares":1000000,"price":1.6319,"value":1631900.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The purchase of Issuer's Common Stock (\"Shares\") reported herein was matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 1,000,000 Shares, with the sale of 1,000,000 shares of Issuer common stock at a price of $2.05 per share by an entity in which Casdin Capital, LLC (\"Casdin\"), Casdin Partners GP, LLC (the \"GP\") and Eli Casdin (collectively with Casdin and the GP, the \"Disgorging Parties\") had a pecuniary interest on the date reported on the Form 4 filed on June 21, 2024 by the Disgorging Parties. The Disgorging Parties agreed to pay to Issuer, upon settlement of the purchase, $376.24 which represents the full amount of the profit realized by the Disgorging Parties, as a result of their pecuniary interest in the entity which made the sale referenced above, in connection with the short-swing transaction."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.5462 to $1.6583. The Reporting Persons undertake 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. 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(the \"Master Fund\"). No reporting person has any pecuniary interest in Casdin FO1."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"The securities are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":3507164,"source":{"system":"sec-edgar","filing":"0000919574-24-004273","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1818331/000091957424004273/ownership.xml","form_type":"4"}},{"id":1472342,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, 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Amplify Fund, LP (\"Amplify\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"The securities are owned directly by Amplify and are deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to Amplify, (ii) the GP, the general partner of Amplify, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC."}],"balance_after":545000,"source":{"system":"sec-edgar","filing":"0000919574-24-003795","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424003795/ownership.xml","form_type":"4"}},{"id":1472340,"issuer":{"id":6116,"kind":"organization","name":"STANDARD BIOTOOLS INC."},"owners":[{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":1,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, 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(the \"Master Fund\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":46730821,"source":{"system":"sec-edgar","filing":"0000919574-24-003795","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424003795/ownership.xml","form_type":"4"}},{"id":1482236,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, 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March 20, 2025, subject to the Reporting Person's continued service through the applicable vesting date and (ii) 6,025 restricted stock units that vest on the earlier of (a) June 10, 2025 or (b) the date of the next annual meeting of stockholders of the Issuer."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The securities are owned directly by Eli Casdin."}],"balance_after":22625,"source":{"system":"sec-edgar","filing":"0000919574-24-003576","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957424003576/ownership.xml","form_type":"4"}},{"id":1490376,"issuer":{"id":1634,"kind":"organization","name":"GeneDx Holdings Corp.","symbol":"WGS"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, 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(the \"Master Fund\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"The securities are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (\"Casdin GP\"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP."}],"balance_after":8707165,"source":{"system":"sec-edgar","filing":"0000919574-24-002732","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/834365/000091957424002732/ownership.xml","form_type":"4"}},{"id":1558581,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":2,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":3,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":4,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.0001 per share","published_at":"2024-03-28T20:29:09.000Z","date":"2024-03-26","kind":"purchase","planned":false,"acquired":true,"shares":40000,"price":5.0998,"value":203992.0,"ownership":{"direct":false,"nature":"See footnote."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $4.9 to $5.41. 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":2000000,"source":{"system":"sec-edgar","filing":"0000919574-24-002241","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957424002241/ownership.xml","form_type":"4"}},{"id":1562016,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Total Return Swap","published_at":"2024-03-25T21:44:59.000Z","date":"2024-03-21","kind":"sale","planned":false,"acquired":false,"shares":63151,"price":4.7154,"value":297782.2254,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F8","text":"The price reported in Column 7 is a weighted average price. These securities were sold in multiple transactions within the range of $4.62 to $4.84. 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 securities sold at each separate price within the range set forth in this footnote."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 7 is a weighted average price. These securities were sold in multiple transactions within the range of $4.62 to $4.84. 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 securities sold at each separate price within the range set forth in this footnote."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The Master Fund has entered into certain cash-settled total return swap agreements (the \"Swap Agreements\"), which represent, after the transaction reported herein, economic exposure to an aggregate of 536,784.15 notional shares of the Issuer's Common Stock, par value $0.0001 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"The Master Fund has entered into certain cash-settled total return swap agreements (the \"Swap Agreements\"), which represent, after the transaction reported herein, economic exposure to an aggregate of 536,784.15 notional shares of the Issuer's Common Stock, par value $0.0001 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. (the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":536784,"derivative":{"underlying":"Common Stock, par value $0.0001 per share","underlying_shares":63151},"source":{"system":"sec-edgar","filing":"0000919574-24-002176","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957424002176/ownership.xml","form_type":"4"}},{"id":1562015,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.0001 per share","published_at":"2024-03-25T21:44:59.000Z","date":"2024-03-25","kind":"purchase","planned":false,"acquired":true,"shares":330000,"price":5.0727,"value":1673991.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. 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(the \"Master Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund (\"Casdin\"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the \"GP\"), and (iii) Eli Casdin, the managing member of Casdin and the GP."}],"balance_after":1960000,"source":{"system":"sec-edgar","filing":"0000919574-24-002176","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1860782/000091957424002176/ownership.xml","form_type":"4"}},{"id":1562014,"issuer":{"id":79756,"kind":"organization","name":"2seventy bio, Inc.","symbol":"TSVT"},"owners":[{"id":40531,"kind":"person","name":"Casdin Capital, LLC","position":1,"cik":"0001534261","reported_name":"Casdin Capital, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":36006,"kind":"person","name":"Casdin Eli","position":2,"cik":"0001534264","reported_name":"Casdin Eli","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40532,"kind":"person","name":"Casdin Partners Master Fund, L.P.","position":3,"cik":"0001534265","reported_name":"Casdin Partners Master Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":40533,"kind":"person","name":"Casdin Partners GP, LLC","position":4,"cik":"0001534260","reported_name":"Casdin Partners GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.0001 per share","published_at":"2024-03-25T21:44:59.000Z","date":"2024-03-22","kind":"purchase","planned":false,"acquired":true,"shares":147377,"price":5.1166,"value":754069.1582,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $4.93 to $5.21. 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 bought at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners Master Fund, L.P. 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