Exhibit 99.6 AMENDMENT NO. 3 TO RIGHTS AGREEMENT This AMENDMENT NO. 3 made as of the 12 day of March, 2003, between Boston Life Sciences, Inc., a Delaware corporation (the "Company"), and Continental Stock Transfer & Trust Company, a Delaware...Rights Agreement • March 13th, 2003 • Boston Life Sciences Inc /De • Pharmaceutical preparations
Exhibit 99.5 Boston Life Sciences, Inc. 20 Newbury Street, 5/th/ Floor Boston, Massachusetts 02116 (617) 425-0200 phone (617) 425-0996 facsimile March 12, 2003 Mr. Robert L. Gipson c/o Ingalls & Snyder, L.L.C. 61 Broadway, 31/st/ Floor New York, NY...Common Stock Purchase Agreement • March 13th, 2003 • Boston Life Sciences Inc /De • Pharmaceutical preparations • New York
Reference is made to the Common Stock Purchase Agreement (the "Purchase Agreement"), dated as of March 4, 2003, by and among Boston Life Sciences, Inc. (the "Company"), and each of the purchasers thereunder. Terms used but not otherwise defined in this letter agreement will have the meanings ascribed to such terms in the Purchase Agreement.
Exhibit 99.4 SECOND ADDENDUM TO REGISTRATION RIGHTS AGREEMENT This SECOND ADDENDUM TO REGISTRATION RIGHTS AGREEMENT (the "Addendum") is made and entered into as of March 12, 2003, by and among Boston Life Sciences, Inc., a Delaware corporation (the...Registration Rights Agreement • March 13th, 2003 • Boston Life Sciences Inc /De • Pharmaceutical preparations
This SECOND ADDENDUM TO REGISTRATION RIGHTS AGREEMENT (the "Addendum") is made and entered into as of March 12, 2003, by and among Boston Life Sciences, Inc., a Delaware corporation (the "Company") and each of the purchasers set forth on the execution page hereof (the "Purchasers"). This Addendum supplements that certain Registration Rights Agreement, dated as of July 25, 2002, by and among the Company and the Initial Holders (as defined therein), as supplemented by the First Addendum thereto dated as of November 22, 2002 (the "Registration Rights Agreement"). Capitalized terms not defined herein shall have the meanings given to them in the Registration Rights Agreement.
WHEREAS:Common Stock Purchase Agreement • March 13th, 2003 • Boston Life Sciences Inc /De • Pharmaceutical preparations • New York
