RTW INVESTMENTS, LP - 12 Nov 2025 Form 4 Insider Report for ALLURION TECHNOLOGIES, INC. (ALUR)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: ALUR
Reported as of: 12 Nov 2025
Net transaction value: +$3,100,001
SEC form: 4
Accepted by SEC: 13 Nov 2025, 17:26:01 UTC
Prior SEC filing: 07 Nov 2025
Next SEC filing: 16 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Roderick Wong, M.D. - For RTW Investments, L.P., By: Roderick Wong, M.D., Managing Partner

Key filing fact

RTW INVESTMENTS, LP filed Form 4 for ALLURION TECHNOLOGIES, INC. (ALUR) on 13 Nov 2025.

Key facts

This page summarizes RTW INVESTMENTS, LP's Form 4 filing for ALLURION TECHNOLOGIES, INC. (ALUR).
6 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 13 Nov 2025, 17:26.

Change

Previous filing in this sequence was filed on 07 Nov 2025.
Current net transaction value: +$3,100,001.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (4)

CIK 0001493215 Primary reporting owner

RTW INVESTMENTS, LP

Relationship: Director, 10%+ Owner
Address: 40 10TH AVENUE, 7TH FLOOR, NEW YORK
Signature: /s/ Roderick Wong, M.D. - For RTW Investments, L.P., By: Roderick Wong, M.D., Managing Partner
Signature date: 13 Nov 2025

CIK 0001493280

WONG RODERICK

Relationship: Director, 10%+ Owner
Address: 40 10TH AVENUE, 7TH FLOOR, NEW YORK
Signature: /s/ Roderick Wong, M.D.
Signature date: 13 Nov 2025

CIK 0001493219

RTW MASTER FUND, LTD.

Relationship: Director, 10%+ Owner
Address: 40 10TH AVENUE, 7TH FLOOR, NEW YORK
Signature: /s/ Darshan Patel - For RTW Master Fund, Ltd., By Darshan Patel, Director
Signature date: 13 Nov 2025

CIK 0001776733

RTW Innovation Master Fund Ltd.

Relationship: Director, 10%+ Owner
Address: 40 10TH AVENUE, 7TH FLOOR, NEW YORK
Signature: /s/ Darshan Patel - For RTW Innovation Master Fund, Ltd., By Darshan Patel, Director
Signature date: 13 Nov 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ALUR transaction

Common Stock, $0.0001 par value per share

Award

Transaction value: $1,655,878
Shares: +991,544
Change %: +46%
Price: $1.67
Shares after: 3,138,798
Date: 12 Nov 2025
Ownership: See footnotes
Footnotes: F1, F2, F3

ALUR transaction

Common Stock, $0.0001 par value per share

Award

Transaction value: $1,282,306
Shares: +767,848
Change %: +46%
Price: $1.67
Shares after: 2,427,089
Date: 12 Nov 2025
Ownership: See footnotes
Footnotes: F1, F2, F4

ALUR transaction

Common Stock, $0.0001 par value per share

Award

Transaction value: $161,816
Shares: +96,896
Change %: +48%
Price: $1.67
Shares after: 298,992
Date: 12 Nov 2025
Ownership: See footnotes
Footnotes: F1, F2, F5

ALUR holding

Common Stock, $0.0001 par value per share

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 26,551
Date: 12 Nov 2025
Ownership: See footnotes
Footnotes: F2, F5

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ALUR transaction Derivative

Warrant (Right to Buy)

Award

Transaction value
Shares: +991,544
Change %
Price
Shares after: 991,544
Date: 12 Nov 2025
Ownership: See footnotes
Underlying class: Common Stock
Underlying amount: 991,544
Exercise price: $1.67
Footnotes: F1, F2, F3, F6

ALUR transaction Derivative

Warrant (Right to Buy)

Award

Transaction value
Shares: +767,848
Change %
Price
Shares after: 767,848
Date: 12 Nov 2025
Ownership: See footnotes
Underlying class: Common Stock
Underlying amount: 767,848
Exercise price: $1.67
Footnotes: F1, F2, F4, F6

ALUR transaction Derivative

Warrant (Right to Buy)

Award

Transaction value
Shares: +96,896
Change %
Price
Shares after: 96,896
Date: 12 Nov 2025
Ownership: See footnotes
Underlying class: Common Stock
Underlying amount: 96,896
Exercise price: $1.67
Footnotes: F1, F2, F5, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote 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.

Footnote 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.

Footnote F3

Held directly by Master Fund.

Footnote F4

Held directly by RTW Innovation.

Footnote F5

Held by an Other RTW Fund.

Footnote 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").

SEC remarks

Pursuant to the terms of the Amended Note Purchase Agreement, RTW Investments, LP has the right to designate two members of the Issuer's board of directors (the "Board"), and has designated Keith Johns and R. Jason Richey to the Board. Mr. Richey is a consultant of RTW Investments.