Samuel J. Heyman (March 1, 1939 – November 7, 2009) was an American businessman and hedge fund manager best known for his longtime chairmanship of the GAF Materials Corporation and International Specialty Products Inc. (ISP).
Samuel J. Heyman (March 1, 1939 – November 7, 2009) was an American businessman and hedge fund manager best known for his longtime chairmanship of the GAF Materials Corporation and International Specialty Products Inc. (ISP). (en)
Samuel J. Heyman (March 1, 1939 – November 7, 2009) was an American businessman and hedge fund manager best known for his longtime chairmanship of the GAF Materials Corporation and International Specialty Products Inc. (ISP). (en)