{"transactions":[{"id":1000155,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrant (Right to Buy)","published_at":"2025-11-13T22:26:01.000Z","date":"2025-11-12","kind":"grant","planned":false,"acquired":true,"shares":96896,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer.  The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the \"Stockholder Approval\")."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the \"Stockholder Approval\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Held by an Other RTW Fund."}],"balance_after":96896,"derivative":{"exercise_price":1.67,"underlying":"Common Stock","underlying_shares":96896},"source":{"system":"sec-edgar","filing":"0001231919-25-000468","document":"form4-11132025_101154.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000468/form4-11132025_101154.xml","form_type":"4"}},{"id":1000154,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrant (Right to Buy)","published_at":"2025-11-13T22:26:01.000Z","date":"2025-11-12","kind":"grant","planned":false,"acquired":true,"shares":767848,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer.  The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the \"Stockholder Approval\")."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the \"Stockholder Approval\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held directly by RTW Innovation."}],"balance_after":767848,"derivative":{"exercise_price":1.67,"underlying":"Common Stock","underlying_shares":767848},"source":{"system":"sec-edgar","filing":"0001231919-25-000468","document":"form4-11132025_101154.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000468/form4-11132025_101154.xml","form_type":"4"}},{"id":1000153,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrant (Right to Buy)","published_at":"2025-11-13T22:26:01.000Z","date":"2025-11-12","kind":"grant","planned":false,"acquired":true,"shares":991544,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer.  The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the \"Stockholder Approval\")."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the \"Stockholder Approval\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Held directly by Master Fund."}],"balance_after":991544,"derivative":{"exercise_price":1.67,"underlying":"Common Stock","underlying_shares":991544},"source":{"system":"sec-edgar","filing":"0001231919-25-000468","document":"form4-11132025_101154.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000468/form4-11132025_101154.xml","form_type":"4"}},{"id":1000152,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-11-13T22:26:01.000Z","date":"2025-11-12","kind":"grant","planned":false,"acquired":true,"shares":96896,"price":1.67,"value":161816.32,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer.  The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Held by an Other RTW Fund."}],"balance_after":298992,"source":{"system":"sec-edgar","filing":"0001231919-25-000468","document":"form4-11132025_101154.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000468/form4-11132025_101154.xml","form_type":"4"}},{"id":1000151,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-11-13T22:26:01.000Z","date":"2025-11-12","kind":"grant","planned":false,"acquired":true,"shares":767848,"price":1.67,"value":1282306.16,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer.  The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held directly by RTW Innovation."}],"balance_after":2427089,"source":{"system":"sec-edgar","filing":"0001231919-25-000468","document":"form4-11132025_101154.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000468/form4-11132025_101154.xml","form_type":"4"}},{"id":1000150,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-11-13T22:26:01.000Z","date":"2025-11-12","kind":"grant","planned":false,"acquired":true,"shares":991544,"price":1.67,"value":1655878.48,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer.  The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Held directly by Master Fund."}],"balance_after":3138798,"source":{"system":"sec-edgar","filing":"0001231919-25-000468","document":"form4-11132025_101154.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000468/form4-11132025_101154.xml","form_type":"4"}},{"id":1004863,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"exercise","planned":false,"acquired":false,"price":126839,"reported_value":126839,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the \"Amended Note Purchase Agreement\"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the \"Notes\") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held by an Other RTW Fund."}],"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":37863},"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004862,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"grant","planned":false,"acquired":true,"price":126839,"reported_value":126839,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the \"Amended Note Purchase Agreement\"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the \"Notes\") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held by an Other RTW Fund."}],"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":37863},"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004861,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"exercise","planned":false,"acquired":false,"price":2117044,"reported_value":2117044,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the \"Amended Note Purchase Agreement\"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the \"Notes\") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Held directly by RTW Innovation."}],"balance_after":0,"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":631954},"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004860,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"grant","planned":false,"acquired":true,"price":2117044,"reported_value":2117044,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the \"Amended Note Purchase Agreement\"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the \"Notes\") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Held directly by RTW Innovation."}],"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":631954},"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004859,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"exercise","planned":false,"acquired":false,"price":2756117,"reported_value":2756117,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the \"Amended Note Purchase Agreement\"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the \"Notes\") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Held directly by Master Fund."}],"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":822722},"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004858,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"grant","planned":false,"acquired":true,"price":2756117,"reported_value":2756117,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the \"Amended Note Purchase Agreement\"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the \"Notes\") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Held directly by Master Fund."}],"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":822722},"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004857,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"exercise","planned":false,"acquired":true,"shares":37863,"price":3.35,"value":126841.05,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held by an Other RTW Fund."}],"balance_after":202096,"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004856,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"exercise","planned":false,"acquired":true,"shares":631954,"price":3.35,"value":2117045.9,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Held directly by RTW Innovation."}],"balance_after":1659241,"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1004855,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-11-07T22:18:07.000Z","date":"2025-11-05","kind":"exercise","planned":false,"acquired":true,"shares":822722,"price":3.35,"value":2756118.7,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (\"Master Fund\"), RTW Innovation Master Fund, Ltd. (\"RTW Innovation\") and other funds or accounts managed by the Adviser (each, an \"Other RTW Fund\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Held directly by Master Fund."}],"balance_after":2147254,"source":{"system":"sec-edgar","filing":"0001231919-25-000449","document":"form4-11072025_101100.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000123191925000449/form4-11072025_101100.xml","form_type":"4"}},{"id":1169767,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-04-17T22:36:58.000Z","date":"2025-04-16","kind":"exercise","planned":false,"acquired":false,"price":5000000,"reported_value":5000000,"ownership":{"direct":false,"nature":"Please see footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On April 15, 2025, the conversion price of $5.0 million aggregate principal amount of the convertible senior secured notes held by the Reporting Persons (the \"Notes\") was amended from $40.50 per share to $3.35 per share.  The remaining outstanding amount of the Notes remain convertible at a conversion price $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Note Purchase Agreement, as amended, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Company's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. (\"Master Fund\") and RTW Innovation Master Fund, Ltd. (\"RTW Innovation,\" and, together with Master Fund and other funds or accounts managed by the Adviser, the \"RTW Funds\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held by RTW Funds."}],"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":1492539},"source":{"system":"sec-edgar","filing":"0001062993-25-007660","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000106299325007660/form4.xml","form_type":"4"}},{"id":1169766,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Note","published_at":"2025-04-17T22:36:58.000Z","date":"2025-04-16","kind":"grant","planned":false,"acquired":true,"price":5000000,"reported_value":5000000,"ownership":{"direct":false,"nature":"Please see footnotes"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On April 15, 2025, the conversion price of $5.0 million aggregate principal amount of the convertible senior secured notes held by the Reporting Persons (the \"Notes\") was amended from $40.50 per share to $3.35 per share.  The remaining outstanding amount of the Notes remain convertible at a conversion price $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the \"Discretionary Conversions\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Note Purchase Agreement, as amended, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Company's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. (\"Master Fund\") and RTW Innovation Master Fund, Ltd. (\"RTW Innovation,\" and, together with Master Fund and other funds or accounts managed by the Adviser, the \"RTW Funds\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held by RTW Funds."}],"derivative":{"exercise_price":3.35,"expiration_date":"2031-04-16","underlying":"Common Stock","underlying_shares":1492539},"source":{"system":"sec-edgar","filing":"0001062993-25-007660","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000106299325007660/form4.xml","form_type":"4"}},{"id":1169765,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-04-17T22:36:58.000Z","date":"2025-04-16","kind":"exercise","planned":false,"acquired":true,"shares":37863,"price":3.35,"value":126841.05,"ownership":{"direct":false,"nature":"Please see footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. (\"Master Fund\") and RTW Innovation Master Fund, Ltd. (\"RTW Innovation,\" and, together with Master Fund and other funds or accounts managed by the Adviser, the \"RTW Funds\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Held by RTW Funds."}],"balance_after":164233,"source":{"system":"sec-edgar","filing":"0001062993-25-007660","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000106299325007660/form4.xml","form_type":"4"}},{"id":1169764,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-04-17T22:36:58.000Z","date":"2025-04-16","kind":"exercise","planned":false,"acquired":true,"shares":631954,"price":3.35,"value":2117045.9,"ownership":{"direct":false,"nature":"Please see footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. (\"Master Fund\") and RTW Innovation Master Fund, Ltd. (\"RTW Innovation,\" and, together with Master Fund and other funds or accounts managed by the Adviser, the \"RTW Funds\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Held by RTW Innovation."}],"balance_after":1027287,"source":{"system":"sec-edgar","filing":"0001062993-25-007660","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000106299325007660/form4.xml","form_type":"4"}},{"id":1169763,"issuer":{"id":8577,"kind":"organization","name":"ALLURION TECHNOLOGIES, INC."},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73214,"kind":"person","name":"RTW Innovation Master Fund Ltd.","position":4,"cik":"0001776733","reported_name":"RTW Innovation Master Fund Ltd.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value per share","published_at":"2025-04-17T22:36:58.000Z","date":"2025-04-16","kind":"exercise","planned":false,"acquired":true,"shares":822722,"price":3.35,"value":2756118.7,"ownership":{"direct":false,"nature":"Please see footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"RTW Investments, LP (the \"Adviser\") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. (\"Master Fund\") and RTW Innovation Master Fund, Ltd. (\"RTW Innovation,\" and, together with Master Fund and other funds or accounts managed by the Adviser, the \"RTW Funds\"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Held by Master Fund."}],"balance_after":1324532,"source":{"system":"sec-edgar","filing":"0001062993-25-007660","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000106299325007660/form4.xml","form_type":"4"}},{"id":2441483,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-01-07T00:43:55.000Z","date":"2022-01-06","kind":"purchase","acquired":true,"shares":51296,"price":8,"value":410368.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2803404,"source":{"system":"sec-edgar","filing":"0000902664-22-000093","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266422000093/ownership.xml","form_type":"4"}},{"id":2441482,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-01-07T00:43:55.000Z","date":"2022-01-05","kind":"purchase","acquired":true,"shares":100195,"price":7.9997,"value":801529.9415,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2752108,"source":{"system":"sec-edgar","filing":"0000902664-22-000093","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266422000093/ownership.xml","form_type":"4"}},{"id":2441481,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.0001 per share (\"Common Stock\")","published_at":"2022-01-07T00:43:55.000Z","date":"2022-01-04","kind":"purchase","acquired":true,"shares":3.932,"price":8,"value":31.456,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2651913,"source":{"system":"sec-edgar","filing":"0000902664-22-000093","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266422000093/ownership.xml","form_type":"4"}},{"id":2454403,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-01-04T02:09:18.000Z","date":"2022-01-03","kind":"purchase","acquired":true,"shares":441,"price":7.9501,"value":3505.9941,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. 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The number of shares set forth on this line has now been corrected to remove these shares from the amount of securities beneficially owned in Column 5 of Table I."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. 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Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2544649,"source":{"system":"sec-edgar","filing":"0000902664-21-004937","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266421004937/ownership.xml","form_type":"4"}},{"id":2515039,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-11-13T00:49:34.000Z","date":"2021-11-11","kind":"purchase","acquired":true,"shares":319,"price":8.435,"value":2690.765,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2544018,"source":{"system":"sec-edgar","filing":"0000902664-21-004937","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266421004937/ownership.xml","form_type":"4"}},{"id":2515038,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.0001 per share (\"Common Stock\")","published_at":"2021-11-13T00:49:34.000Z","date":"2021-11-09","kind":"purchase","acquired":true,"shares":8949,"price":8.25,"value":73829.25,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2543699,"source":{"system":"sec-edgar","filing":"0000902664-21-004937","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266421004937/ownership.xml","form_type":"4"}},{"id":2521406,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-11-08T23:39:33.000Z","date":"2021-11-08","kind":"purchase","acquired":true,"shares":100009,"price":8.25,"value":825074.25,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2534750,"source":{"system":"sec-edgar","filing":"0000902664-21-004782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266421004782/ownership.xml","form_type":"4"}},{"id":2521405,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-11-08T23:39:33.000Z","date":"2021-11-05","kind":"purchase","acquired":true,"shares":1130,"price":8.3359,"value":9419.567,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2434741,"source":{"system":"sec-edgar","filing":"0000902664-21-004782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266421004782/ownership.xml","form_type":"4"}},{"id":2521404,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-11-08T23:39:33.000Z","date":"2021-11-05","kind":"purchase","acquired":true,"shares":13157,"price":8.3751,"value":110191.1907,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. Dr. Wong exercises voting and dispositive control over the shares of Common Stock held by the Adviser and is therefore deemed to be a beneficial owner of securities owned or controlled by the Adviser."}],"balance_after":2433611,"source":{"system":"sec-edgar","filing":"0000902664-21-004782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493219/000090266421004782/ownership.xml","form_type":"4"}},{"id":2521403,"issuer":{"id":114644,"kind":"organization","name":"Renovacor, Inc.","symbol":"RCOR"},"owners":[{"id":28978,"kind":"organization","name":"RTW INVESTMENTS, LP","position":1,"cik":"0001493215","reported_name":"RTW INVESTMENTS, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27749,"kind":"person","name":"WONG RODERICK","position":2,"cik":"0001493280","reported_name":"WONG RODERICK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":73213,"kind":"person","name":"RTW MASTER FUND, LTD.","position":3,"cik":"0001493219","reported_name":"RTW MASTER FUND, LTD.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.0001 per share (\"Common Stock\")","published_at":"2021-11-08T23:39:33.000Z","date":"2021-11-04","kind":"purchase","acquired":true,"shares":57914,"price":8.029,"value":464991.506,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP (the \"Adviser\"), which is deemed the beneficial owner of shares of Common Stock held by RTW Master Fund, Ltd., RTW Innovation Master Fund, Ltd. and RTW Venture Fund Limited (collectively, the \"Funds\"), which are investment funds managed by the Adviser, and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser. 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