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| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For AMPH | |||||
| 2026-03-15 | Peters, William J | Director, CFO, EVP & TREASURER | Sold | 1973 | $18.18 |
| 2026-03-15 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Sold | 2908 | $18.18 |
| 2026-03-15 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Sold | 9784 | $18.18 |
| 2026-03-15 | Liawatidewi, Yakob | Director, EVP CORP ADMIN CENTER | Sold | 1033 | $18.18 |
| 2026-03-15 | Zhou, Rong | SENIOR EVP, PRODUCTION CENTER | Sold | 1225 | $18.18 |
| 2026-03-10 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Sold | 14785 | $18.91 |
| 2026-03-10 | Zhou, Rong | SENIOR EVP, PRODUCTION CENTER | Sold | 2215 | $18.91 |
| 2026-03-10 | Peters, William J | Director, CFO, EVP & TREASURER | Sold | 3297 | $18.91 |
| 2026-03-10 | Liawatidewi, Yakob | Director, EVP CORP ADMIN CENTER | Sold | 1870 | $18.91 |
| 2026-03-10 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Sold | 4395 | $18.91 |
| 2026-03-09 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Purchased | 72462 | $0.00 |
| 2026-03-09 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Purchased | 149472 | $0.00 |
| 2026-03-09 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Purchased | 372338 | $0.00 |
| 2026-03-09 | Peters, William J | Director, CFO, EVP & TREASURER | Purchased | 58693 | $0.00 |
| 2026-03-09 | Zhou, Rong | SENIOR EVP, PRODUCTION CENTER | Purchased | 39432 | $0.00 |
| 2026-03-09 | Zhou, Rong | SENIOR EVP, PRODUCTION CENTER | Purchased | 81341 | $0.00 |
| 2026-03-09 | Liawatidewi, Yakob | Director, EVP CORP ADMIN CENTER | Purchased | 35450 | $0.00 |
| 2026-03-09 | Liawatidewi, Yakob | Director, EVP CORP ADMIN CENTER | Purchased | 73126 | $0.00 |
| 2026-03-09 | Zhang, Jack Y. | Director, CEO & CHIEF SCIENTIFIC OFFICER, 10% Owner | Purchased | 180504 | $0.00 |
| 2026-03-09 | Peters, William J | Director, CFO, EVP & TREASURER | Purchased | 121071 | $0.00 |
