July 21, 2026 RTW Investments, LP New York, NY 10014 United States Re: 3(a)(9) Exchange Agreement Ladies and Gentlemen:3(a)(9) Exchange Agreement • July 23rd, 2026 • RTW Investments, Lp • Surgical & medical instruments & apparatus
Contract Type FiledJuly 23rd, 2026 Company IndustryThis letter agreement (the “Agreement”) confirms the agreement of Allurion Technologies, Inc., a Delaware corporation (the “Company”), and the holders of the Common Stock listed on Schedule I attached hereto (the “Stockholders”), pursuant to which the Stockholders have agreed to exchange an aggregate of 392,766 shares (the “Shares”) of Common Stock, par value $0.0001 per share (the “Common Stock”), beneficially owned by the Stockholders in consideration for one or more pre-funded Common Stock Warrants in the form attached hereto as Exhibit A (each a “Warrant”)1 to purchase an aggregate of 392,766 shares of Common Stock (the “Warrant Shares”) on the terms specified below.
July 21, 2026 RTW Investments, LP New York, NY 10014 United States Re: 3(a)(9) Exchange Agreement Ladies and Gentlemen:3(a)(9) Exchange Agreement • July 23rd, 2026 • Allurion Technologies, Inc. • Surgical & medical instruments & apparatus
Contract Type FiledJuly 23rd, 2026 Company IndustryThis letter agreement (the “Agreement”) confirms the agreement of Allurion Technologies, Inc., a Delaware corporation (the “Company”), and the holders of the Common Stock listed on Schedule I attached hereto (the “Stockholders”), pursuant to which the Stockholders have agreed to exchange an aggregate of 392,766 shares (the “Shares”) of Common Stock, par value $0.0001 per share (the “Common Stock”), beneficially owned by the Stockholders in consideration for one or more pre-funded Common Stock Warrants in the form attached hereto as Exhibit A (each a “Warrant”)1 to purchase an aggregate of 392,766 shares of Common Stock (the “Warrant Shares”) on the terms specified below.