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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":11496525,"source":{"system":"sec-edgar","filing":"0000919574-24-001888","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424001888/ownership.xml","form_type":"4"}},{"id":1592161,"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}},{"id":89680,"kind":"person","name":"Casdin Partners FO1-MSV, LP","position":5,"cik":"0001938709","reported_name":"Casdin Partners FO1-MSV, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2024-03-06T19:32:09.000Z","date":"2024-03-05","kind":"purchase","planned":false,"acquired":true,"shares":900,"price":8.827,"value":7944.3,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions within the range of $8.8236 to $8.84. 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 shares purchased 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, 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":2703509,"source":{"system":"sec-edgar","filing":"0000919574-24-001889","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1938709/000091957424001889/ownership.xml","form_type":"4"}},{"id":1592160,"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}},{"id":89680,"kind":"person","name":"Casdin Partners FO1-MSV, LP","position":5,"cik":"0001938709","reported_name":"Casdin Partners FO1-MSV, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2024-03-06T19:32:09.000Z","date":"2024-03-04","kind":"purchase","planned":false,"acquired":true,"shares":40000,"price":8.7427,"value":349708.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions within the range of $8.6895 to $8.7811. 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 purchased 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, 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":2702609,"source":{"system":"sec-edgar","filing":"0000919574-24-001889","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1938709/000091957424001889/ownership.xml","form_type":"4"}},{"id":1683021,"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":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":5,"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":6,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, 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":7,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":89680,"kind":"person","name":"Casdin Partners FO1-MSV, LP","position":8,"cik":"0001938709","reported_name":"Casdin Partners FO1-MSV, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-01-10T01:51:32.000Z","date":"2024-01-05","kind":"grant","planned":false,"acquired":true,"shares":2744219,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Received in exchange for 2,472,270 shares of common stock of SomaLogic pursuant to the Merger. Per the terms of the Merger, each share of SomaLogic common stock was converted pursuant to the Exchange Ratio at the Effective Time. The securities are owned directly by Casdin Private Growth Equity Fund, L.P. (the \"Equity Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund, and (ii) Eli Casdin, the managing member of Casdin."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Received in exchange for 2,472,270 shares of common stock of SomaLogic pursuant to the Merger. Per the terms of the Merger, each share of SomaLogic common stock was converted pursuant to the Exchange Ratio at the Effective Time. The securities are owned directly by Casdin Private Growth Equity Fund, L.P. (the \"Equity Fund\") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund, and (ii) Eli Casdin, the managing member of Casdin."}],"balance_after":2744219,"source":{"system":"sec-edgar","filing":"0000919574-24-000224","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424000224/ownership.xml","form_type":"4"}},{"id":1683020,"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":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":5,"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":6,"cik":"0001823061","reported_name":"Casdin Private Growth Equity Fund, 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":7,"cik":"0001864554","reported_name":"CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":89680,"kind":"person","name":"Casdin Partners FO1-MSV, LP","position":8,"cik":"0001938709","reported_name":"Casdin Partners FO1-MSV, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-01-10T01:51:32.000Z","date":"2024-01-05","kind":"grant","planned":false,"acquired":true,"shares":11246525,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Received in exchange for 10,132,005 shares of common stock of SomaLogic, Inc. (\"SomaLogic\") pursuant to the Agreement and Plan of Merger (the \"Merger Agreement\"), dated October 4, 2023, by and among Standard BioTools Inc. (the \"Company\"), Martis Merger Sub, Inc. and SomaLogic (the \"Merger\"). Per the terms of the Merger, each share of SomaLogic common stock was converted into the right to receive 1.11 shares of the Company's common stock (the \"Exchange Ratio\") at the effective time of the Merger (the \"Effective Time\"). 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.direct","element":"directOrIndirectOwnership","label":"F1","text":"Received in exchange for 10,132,005 shares of common stock of SomaLogic, Inc. (\"SomaLogic\") pursuant to the Agreement and Plan of Merger (the \"Merger Agreement\"), dated October 4, 2023, by and among Standard BioTools Inc. (the \"Company\"), Martis Merger Sub, Inc. and SomaLogic (the \"Merger\"). Per the terms of the Merger, each share of SomaLogic common stock was converted into the right to receive 1.11 shares of the Company's common stock (the \"Exchange Ratio\") at the effective time of the Merger (the \"Effective Time\"). 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":11246525,"source":{"system":"sec-edgar","filing":"0000919574-24-000224","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957424000224/ownership.xml","form_type":"4"}},{"id":1885206,"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":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":5,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":89680,"kind":"person","name":"Casdin Partners FO1-MSV, LP","position":6,"cik":"0001938709","reported_name":"Casdin Partners FO1-MSV, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-20T01:00:50.000Z","date":"2023-05-19","kind":"purchase","planned":false,"acquired":true,"shares":800000,"price":2.2949,"value":1835920.0,"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. These shares were purchased in multiple transactions within the range of $2.29 to $2.2982. 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 purchased at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners FO1-MSV, LP (\"Casdin FO1\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin FO1, (ii) Casdin Partners GP, LLC, the general partner of Casdin FO1, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC."}],"balance_after":1200000,"source":{"system":"sec-edgar","filing":"0000919574-23-003425","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957423003425/ownership.xml","form_type":"4"}},{"id":1885205,"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":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":5,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":89680,"kind":"person","name":"Casdin Partners FO1-MSV, LP","position":6,"cik":"0001938709","reported_name":"Casdin Partners FO1-MSV, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-20T01:00:50.000Z","date":"2023-05-18","kind":"purchase","planned":false,"acquired":true,"shares":150000,"price":2.1591,"value":323865.0,"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 purchased in multiple transactions within the range of $2.1489 to $2.1759. 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 purchased at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners FO1-MSV, LP (\"Casdin FO1\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin FO1, (ii) Casdin Partners GP, LLC, the general partner of Casdin FO1, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC."}],"balance_after":400000,"source":{"system":"sec-edgar","filing":"0000919574-23-003425","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957423003425/ownership.xml","form_type":"4"}},{"id":1885204,"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":72211,"kind":"person","name":"Casdin Private Growth Equity Fund II GP, LLC","position":5,"cik":"0001919480","reported_name":"Casdin Private Growth Equity Fund II GP, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":89680,"kind":"person","name":"Casdin Partners FO1-MSV, LP","position":6,"cik":"0001938709","reported_name":"Casdin Partners FO1-MSV, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-20T01:00:50.000Z","date":"2023-05-17","kind":"purchase","planned":false,"acquired":true,"shares":250000,"price":1.8862,"value":471550.0,"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 purchased in multiple transactions within the range of $1.855 to $1.9237. 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 purchased at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities are owned directly by Casdin Partners FO1-MSV, LP (\"Casdin FO1\") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin FO1, (ii) Casdin Partners GP, LLC, the general partner of Casdin FO1, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC."}],"balance_after":250000,"source":{"system":"sec-edgar","filing":"0000919574-23-003425","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1162194/000091957423003425/ownership.xml","form_type":"4"}}]}