EXHIBIT 4.3 STOCK OPTION AGREEMENT AGREEMENT made as of December 19, 1995 by and between CADUS PHARMACEUTICAL CORPORATION (the "Corporation"), a Delaware corporation having offices at 777 Old Saw Mill River Road, Tarrytown, New York 10591-8705, and...Stock Option Agreement • February 14th, 1997 • Cadus Pharmaceutical Corp • Services-commercial physical & biological research • Delaware
EXHIBIT 4.7 STOCK OPTION AGREEMENT AGREEMENT made as of November 15, 1996 by and between CADUS PHARMACEUTICAL CORPORATION (the "Corporation"), a Delaware corporation having offices at 777 Old Saw Mill River Road, Tarrytown, New York 10591-8705, and...Stock Option Agreement • February 14th, 1997 • Cadus Pharmaceutical Corp • Services-commercial physical & biological research • Delaware
