person · Reporting owner

RTW Innovation Master Fund Ltd.

Disclosed activity across 1 company

Tapewire entity: 73214
SEC CIK: 0001776733

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
ALLURION TECHNOLOGIES, INC.ALUR · Entity 8577	Director · 10% owner	November 12, 2025	November 13, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ALLURION TECHNOLOGIES, INC.

Report date November 12, 2025 · Filed November 13, 2025

Jointly reported with RTW INVESTMENTS, LP, WONG RODERICK, RTW MASTER FUND, LTD.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common Stock, $0.0001 par value per shareSEC Table I · non-derivative	IndirectSee footnotes	3,138,798	Reported balance After 2025-11-12 transaction · row 1 Holding and transaction disclosures are not merged. 1 source row Row 1 · 2025-11-12 · Grant · Acquired 991,544 · Balance 3,138,798 F1: 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. F2: 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. F3: Held directly by Master Fund.
Common Stock, $0.0001 par value per shareSEC Table I · non-derivative	IndirectSee footnotes	2,427,089	Reported balance After 2025-11-12 transaction · row 2 Holding and transaction disclosures are not merged. 1 source row Row 2 · 2025-11-12 · Grant · Acquired 767,848 · Balance 2,427,089 F1: 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. F2: 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. F4: Held directly by RTW Innovation.
Common Stock, $0.0001 par value per shareSEC Table I · non-derivative	IndirectSee footnotes	298,992	Reported balance After 2025-11-12 transaction · row 3 Holding and transaction disclosures are not merged. 1 source row Row 3 · 2025-11-12 · Grant · Acquired 96,896 · Balance 298,992 F1: 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. F2: 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. F5: Held by an Other RTW Fund.
Common Stock, $0.0001 par value per shareSEC Table I · non-derivative	IndirectSee footnotes	26,551	Reported balance Holding disclosure · report date 2025-11-12 · row 4 Holding and transaction disclosures are not merged. 1 source row Row 4 · Balance 26,551 F2: 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. F5: Held by an Other RTW Fund.
Warrant (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.67	IndirectSee footnotes	991,544	Reported balance After 2025-11-12 transaction · row 5 Instrument identity requires review; Table II rows are not merged. 1 source row Row 5 · 2025-11-12 · Grant · Acquired 991,544 · Balance 991,544 F1: 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. F6: 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"). F2: 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. F3: Held directly by Master Fund.
Warrant (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.67	IndirectSee footnotes	767,848	Reported balance After 2025-11-12 transaction · row 6 Instrument identity requires review; Table II rows are not merged. 1 source row Row 6 · 2025-11-12 · Grant · Acquired 767,848 · Balance 767,848 F1: 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. F6: 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"). F2: 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. F4: Held directly by RTW Innovation.
Warrant (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.67	IndirectSee footnotes	96,896	Reported balance After 2025-11-12 transaction · row 7 Instrument identity requires review; Table II rows are not merged. 1 source row Row 7 · 2025-11-12 · Grant · Acquired 96,896 · Balance 96,896 F1: 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. F6: 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"). F2: 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. F5: Held by an Other RTW Fund.

Filing footnotes · ownership attribution and instrument terms

F1: 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.

F2: 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.

F3: Held directly by Master Fund.

F4: Held directly by RTW Innovation.

F5: Held by an Other RTW Fund.

F6: 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").

Transaction history

JSON API

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
November 12, 2025 Filed Nov 13, 2025 22:26 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantWarrant (Right to Buy) · Derivative	96,896	Not disclosed Strike: $1.67	Not disclosed	Disclosure SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · derivative · entry 7 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 96,896 Underlying: Common Stock · 96,896 shares Expires not disclosed F1 · price: 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. F6 · derivative.exercise_date: 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"). F6 · derivative.expiration_date: 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"). F2 · ownership.nature: 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. F5 · ownership.nature: Held by an Other RTW Fund. Read SEC document
November 12, 2025 Filed Nov 13, 2025 22:26 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantWarrant (Right to Buy) · Derivative	767,848	Not disclosed Strike: $1.67	Not disclosed	Disclosure SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · derivative · entry 6 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 767,848 Underlying: Common Stock · 767,848 shares Expires not disclosed F1 · price: 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. F6 · derivative.exercise_date: 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"). F6 · derivative.expiration_date: 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"). F2 · ownership.nature: 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. F4 · ownership.nature: Held directly by RTW Innovation. Read SEC document
November 12, 2025 Filed Nov 13, 2025 22:26 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantWarrant (Right to Buy) · Derivative	991,544	Not disclosed Strike: $1.67	Not disclosed	Disclosure SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · derivative · entry 5 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 991,544 Underlying: Common Stock · 991,544 shares Expires not disclosed F1 · price: 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. F6 · derivative.exercise_date: 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"). F6 · derivative.expiration_date: 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"). F2 · ownership.nature: 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. F3 · ownership.nature: Held directly by Master Fund. Read SEC document
November 12, 2025 Filed Nov 13, 2025 22:26 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantCommon Stock, $0.0001 par value per share	96,896	$1.67	$161,816.32	Disclosure SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · nonDerivative · entry 3 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 298,992 F1 · price: 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. F2 · ownership.nature: 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. F5 · ownership.nature: Held by an Other RTW Fund. Read SEC document
November 12, 2025 Filed Nov 13, 2025 22:26 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantCommon Stock, $0.0001 par value per share	767,848	$1.67	$1,282,306.16	Disclosure SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · nonDerivative · entry 2 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 2,427,089 F1 · price: 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. F2 · ownership.nature: 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. F4 · ownership.nature: Held directly by RTW Innovation. Read SEC document
November 12, 2025 Filed Nov 13, 2025 22:26 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantCommon Stock, $0.0001 par value per share	991,544	$1.67	$1,655,878.48	Disclosure SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · nonDerivative · entry 1 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 3,138,798 F1 · price: 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. F2 · ownership.nature: 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. F3 · ownership.nature: Held directly by Master Fund. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionConvertible Note · Derivative	Not disclosed	$126,839.00 Strike: $3.35	$126,839.00	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 10 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: Not disclosed Underlying: Common Stock · 37,863 shares Expires 2031-04-16 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F4 · ownership.nature: Held by an Other RTW Fund. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantConvertible Note · Derivative	Not disclosed	$126,839.00 Strike: $3.35	$126,839.00	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 9 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: Not disclosed Underlying: Common Stock · 37,863 shares Expires 2031-04-16 F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F4 · ownership.nature: Held by an Other RTW Fund. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionConvertible Note · Derivative	Not disclosed	$2,117,044.00 Strike: $3.35	$2,117,044.00	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 8 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 0 Underlying: Common Stock · 631,954 shares Expires 2031-04-16 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F3 · ownership.nature: Held directly by RTW Innovation. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantConvertible Note · Derivative	Not disclosed	$2,117,044.00 Strike: $3.35	$2,117,044.00	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 7 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: Not disclosed Underlying: Common Stock · 631,954 shares Expires 2031-04-16 F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F3 · ownership.nature: Held directly by RTW Innovation. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionConvertible Note · Derivative	Not disclosed	$2,756,117.00 Strike: $3.35	$2,756,117.00	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 6 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: Not disclosed Underlying: Common Stock · 822,722 shares Expires 2031-04-16 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F2 · ownership.nature: Held directly by Master Fund. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantConvertible Note · Derivative	Not disclosed	$2,756,117.00 Strike: $3.35	$2,756,117.00	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 5 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: Not disclosed Underlying: Common Stock · 822,722 shares Expires 2031-04-16 F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F2 · ownership.nature: Held directly by Master Fund. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionCommon Stock, $0.0001 par value per share	37,863	$3.35	$126,841.05	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · nonDerivative · entry 3 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 202,096 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · ownership.nature: 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. F4 · ownership.nature: Held by an Other RTW Fund. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionCommon Stock, $0.0001 par value per share	631,954	$3.35	$2,117,045.90	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · nonDerivative · entry 2 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 1,659,241 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · ownership.nature: 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. F3 · ownership.nature: Held directly by RTW Innovation. Read SEC document
November 05, 2025 Filed Nov 7, 2025 22:18 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionCommon Stock, $0.0001 par value per share	822,722	$3.35	$2,756,118.70	Disclosure SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · nonDerivative · entry 1 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 2,147,254 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · ownership.nature: 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. F2 · ownership.nature: Held directly by Master Fund. Read SEC document
April 16, 2025 Filed Apr 17, 2025 22:36 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionConvertible Note · Derivative	Not disclosed	$5,000,000.00 Strike: $3.35	$5,000,000.00	Disclosure SEC source: 0001062993-25-007660 · form4.xml · derivative · entry 6 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · Please see footnotes Disclosed balance after: Not disclosed Underlying: Common Stock · 1,492,539 shares Expires 2031-04-16 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F4 · ownership.nature: Held by RTW Funds. Read SEC document
April 16, 2025 Filed Apr 17, 2025 22:36 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	GrantConvertible Note · Derivative	Not disclosed	$5,000,000.00 Strike: $3.35	$5,000,000.00	Disclosure SEC source: 0001062993-25-007660 · form4.xml · derivative · entry 5 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · Please see footnotes Disclosed balance after: Not disclosed Underlying: Common Stock · 1,492,539 shares Expires 2031-04-16 F5 · derivative.exercise_date: 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"). F6 · derivative.exercise_date: 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. F1 · ownership.nature: 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. F4 · ownership.nature: Held by RTW Funds. Read SEC document
April 16, 2025 Filed Apr 17, 2025 22:36 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionCommon Stock, $0.0001 par value per share	37,863	$3.35	$126,841.05	Disclosure SEC source: 0001062993-25-007660 · form4.xml · nonDerivative · entry 3 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · Please see footnotes Disclosed balance after: 164,233 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · ownership.nature: 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. F4 · ownership.nature: Held by RTW Funds. Read SEC document
April 16, 2025 Filed Apr 17, 2025 22:36 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionCommon Stock, $0.0001 par value per share	631,954	$3.35	$2,117,045.90	Disclosure SEC source: 0001062993-25-007660 · form4.xml · nonDerivative · entry 2 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · Please see footnotes Disclosed balance after: 1,027,287 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · ownership.nature: 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. F3 · ownership.nature: Held by RTW Innovation. Read SEC document
April 16, 2025 Filed Apr 17, 2025 22:36 UTC	ALLURION TECHNOLOGIES, INC. ALUR · Entity 8577	ConversionCommon Stock, $0.0001 par value per share	822,722	$3.35	$2,756,118.70	Disclosure SEC source: 0001062993-25-007660 · form4.xml · nonDerivative · entry 1 RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner WONG RODERICK · CIK 0001493280 · Director · 10% owner RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · Please see footnotes Disclosed balance after: 1,324,532 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · ownership.nature: 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. F2 · ownership.nature: Held by Master Fund. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.