ALLURION TECHNOLOGIES, INC. - SCHEDULE 13D/A Filing

RTW Investments, LP, along with related entities and Roderick Wong, has increased its beneficial ownership of ALLURION TECHNOLOGIES, INC. common stock. As of March 2, 2026, RTW Investments, LP holds 5,891,430 shares, representing 39.4% of the outstanding stock. This increase is attributed to the issuance of 2,659,565 shares pursuant to an Inducement Offer to Exercise Common Stock Purchase Warrants, which closed on February 26, 2026. The total number of outstanding shares considered for ownership percentage calculation includes 12,279,181 shares as of January 5, 2026, plus the newly issued shares. RTW Master Fund, Ltd. holds 21.0% and RTW Innovation Master Fund, Ltd. holds 16.2%. Roderick Wong, as an individual, also holds 39.4% indirectly through his control of RTW Investments, LP. No transactions were effected by any Reporting Person in the past sixty days prior to this filing.