AGREEMENT REGARDING REGISTRATION RIGHTS UNDER REGISTRATION RIGHTS AGREEMENT Enzon, Inc. 20 Kingsbridge Road Piscataway, NJ 08854 Dear Sir or Madam: Reference is hereby made to the Registration Rights Agreement (the "Registration Rights Agreement")...Agreement Regarding Registration Rights Under Registration Rights Agreement • May 15th, 1997 • Enzon Inc • Biological products, (no disgnostic substances)
Contract Type FiledMay 15th, 1997 Company IndustryReference is hereby made to the Registration Rights Agreement (the "Registration Rights Agreement") dated March 15, 1996 by and among Enzon, Inc. and the security holders named on the signature page thereto, including the undersigned.