X0202 4 2004-06-02 0 0001003642 IMPAX LABORATORIES INC IPXL 0001245196 HSIAO CHARLES IMPAX LABORATORIES, INC. 30831 HUNTWOOD AVENUE HAYWARD CA 94544 1 0 0 0 Gift of Common stock 2004-06-03 2004-06-03 4 G 0 300000 0 D 4585207 D Gift of common stock to Pamela and Charles Hsiao Charitable Remainder Unitrust Charles Hsiao, Ph.D. 2004-06-07