| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For AMPH | |||||
| 2025-08-01 | Petersen, Floyd F. | Director | Sold | 500 | $20.83 |
| 2025-07-18 | Gaugh, David Russell | Director | Purchased | 6304 | $0.00 |
| 2025-07-18 | Gaugh, David Russell | Director | Purchased | 13987 | $0.00 |
| 2025-07-02 | Petersen, Floyd F. | Director | Sold | 500 | $23.47 |
| 2025-06-13 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Sold | 200000 | $0.00 |
| 2025-06-13 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Purchased | 200000 | $13.03 |
| 2025-06-03 | Lee, Howard | Director | Sold | 923 | $26.01 |
| 2025-06-02 | Gerst, Diane G. | Director | Purchased | 11402 | $0.00 |
| 2025-06-02 | Deflin, Gayle | Director | Purchased | 11402 | $0.00 |
| 2025-06-02 | Zasloff, Michael A | Director | Purchased | 11402 | $0.00 |
| 2025-06-02 | Gerst, Diane G. | Director | Purchased | 5122 | $0.00 |
| 2025-06-02 | Deflin, Gayle | Director | Purchased | 5122 | $0.00 |
| 2025-06-02 | Lee, Howard | Director | Purchased | 11402 | $0.00 |
| 2025-06-02 | Petersen, Floyd F. | Director | Purchased | 5122 | $0.00 |
| 2025-06-02 | Lee, Howard | Director | Purchased | 5122 | $0.00 |
| 2025-06-02 | Zasloff, Michael A | Director | Purchased | 5122 | $0.00 |
| 2025-06-02 | Petersen, Floyd F. | Director | Purchased | 11402 | $0.00 |
| 2025-06-02 | Petersen, Floyd F. | Director | Sold | 500 | $25.67 |
| 2025-06-02 | Prins, Richard K | Director | Purchased | 11402 | $0.00 |
| 2025-06-02 | Prins, Richard K | Director | Purchased | 5122 | $0.00 |
