Filed Pursuant to Rule 424(b)(3) Relating to Registration Statement No. 333-13469 TITAN PHARMACEUTICALS, INC. SUPPLEMENT DATED JULY 16, 1997 TO REGISTRATION STATEMENT DATED DECEMBER 2, 1996 This supplement should be read in conjunction with the Prospectus dated December 2, 1996 contained in Registration Statement No. 333-13469 of Titan Pharmaceuticals, Inc. a Delaware corporation (the "Company"), including the exhibits thereto. SELLING SECURITYHOLDERS The following sets forth information regarding an additional Private Placement Investor for which the Company has registered securities for resale to the public.