Every Form 4 that ALLURION TECHNOLOGIES INC (ALUR) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow ALUR and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full ALUR filings page.
RTW Investments, LP and affiliated funds restructured holdings in Allurion Technologies on July 21, 2026 by exchanging 209,254, 161,807, 19,934 and 1,771 shares of Common Stock for equal numbers of Pre-Funded Warrants exercisable at $0.0001 per share. The warrants are exercisable immediately, have no expiration, and are subject to a 9.99% beneficial ownership cap; share counts reflect a 1-for-15 reverse stock split completed June 18, 2026.
Allurion Technologies, Inc. director insider transactions show a mix of gifts and small open-market sales of common stock following a reverse stock split. The filing notes that on January 3, 2025, Allurion implemented a 1-for-25 reverse stock split, and all share amounts in this report are adjusted for that change. On October 3, 2025 and November 26, 2025, the director reported code "G" transactions, reflecting transfers of common stock between direct holdings and an indirect position held through the Davin Family Nominee Trust, at a reported price of $0.00 per share.
On December 3, 2025 and December 4, 2025, the trust reported code "S" sales of 1,606 common shares on each date, at prices of $1.48 and $1.5821 per share, respectively, reducing the indirect holdings reported for the trust to zero. The filing explains that the shares attributed to the trust are held by the Davin Family Nominee Trust, for which the reporting person and spouse serve as trustees, and that the reporting person disclaims beneficial ownership beyond any pecuniary interest.
Allurion Technologies, Inc. (ALUR) reported a Form 4 showing that funds managed by RTW Investments, LP acquired common stock and accompanying warrants in a private placement. The reporting entities bought blocks of 991,544, 767,848 and 96,896 shares of common stock, each with matching warrants, at a purchase price of $1.67 per share and accompanying warrant. Following these transactions, the funds report beneficial ownership of up to 3,138,798, 2,427,089 and 298,992 shares through different RTW-managed vehicles, plus an additional 26,551 shares in another fund. The warrants carry an exercise price of $1.67 per share, become exercisable only after stockholder approval, and expire five years after that approval. Each warrant is subject to a beneficial ownership cap of 4.99% (or 9.99% at the holder’s election), and Allurion has agreed to use its reasonable best efforts to hold a stockholder meeting no later than January 31, 2026 to seek approval for the warrant share issuance.
Allurion Technologies (ALUR): Affiliated funds managed by RTW Investments reported converting an aggregate $5.0 million principal amount of Allurion’s convertible senior secured notes into common stock at the floor conversion price of $3.35 per share on November 5, 2025. The filing identifies the reporting persons as a Director and 10% owner and indicates the form is filed by more than one reporting person.
The conversion resulted in share issuances to multiple RTW-managed entities, including 822,722 shares to RTW Master Fund and 631,954 shares to RTW Innovation. The notes bear 6.0% annual interest and mature on April 16, 2031. Remaining notes are convertible at $40.50 per share and may also be converted at additional prices at the issuer’s discretion. A 9.99% beneficial ownership limitation applies, unless a discretionary conversion is used.