Amphastar Pharmaceuticals

Rong Zhou sold 9,787 shares of AMPH on 17 December. They now own 138,043 AMPH shares, or a 7% holding decrease.

Richard K Prins sold 4,179 shares of AMPH on 25 November. They now own 35,183 AMPH shares, or a 11% holding decrease.

Floyd F Petersen sold 16,679 shares of AMPH on 13 November. They now own 75,531 AMPH shares, or a 18% holding decrease.

Rong Zhou sold 7,000 shares of AMPH on 12 December. They now own 118,469 AMPH shares, or a 6% holding decrease.

Rong Zhou sold 8,000 shares of AMPH on 13 December. They now own 118,469 AMPH shares, or a 6% holding decrease.

Richard K Prins sold 10,000 shares of AMPH on 9 December. They now own 30,471 AMPH shares, or a 25% holding decrease.

Richard K Prins sold 5,000 shares of AMPH on 12 November. They now own 31,471 AMPH shares, or a 14% holding decrease.

Rong Zhou sold 6,893 shares of AMPH on 12 November. They now own 118,388 AMPH shares, or a 6% holding decrease.

Yakob Liawatidewi sold 5,214 shares of AMPH on 6 November. They now own 74,938 AMPH shares, or a 7% holding decrease.

Richard K Prins sold 17,101 shares of AMPH on 12 August. They now own 33,971 AMPH shares, or a 33% holding decrease.

William J Peters sold 18,136 shares of AMPH on 6 March. They now own 111,490 AMPH shares, or a 14% holding decrease.

Michael A Zasloff sold 12,500 shares of AMPH on 5 March. They now own 21,326 AMPH shares, or a 37% holding decrease.