Letter Agreement Binding Stockholders to Investors' Rights Agreement – Acusphere, Inc.

Summary

This letter agreement, dated April 30, 1996, is between Acusphere, Inc. and certain of its stockholders. The stockholders agree that, if Acusphere conducts an underwritten public offering, they will be bound by Section 2.14 of the company's Amended and Restated Investors' Rights Agreement as if they were investors under that agreement. The agreement is signed by Sherri C. Oberg, Robert S. Langer, and Harry R. Allcock.

EX-10.06 6 b47005aiexv10w06.txt EX-10.06 LETTER AGREEMENT Exhibit 10.06 April 30, 1996 Acusphere, Inc. 38 Sidney Street Cambridge, MA 02139 Dear Ladies and Gentlemen: For good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, each of the undersigned stockholders of Acusphere, Inc., (the "Company") hereby agrees that in the event of an underwritten public offering of the Company's securities, such stockholder will be bound by Section 2.14 of the Amended and Restated Investors' Rights Agreement, dated March 30, 1995 as if such stockholder were an "Investor" under such Agreement. Very truly yours, /s/ Sherri C. Oberg ---------------------------------------- Sherri C. Oberg /s/ Robert S. Langer ---------------------------------------- Robert S. Langer /s/ Harry R. Allcock ---------------------------------------- Harry R. Allcock