| Insider | Ticker | Relationship | Date | Transaction | Avg Cost | Shares | Total Value | Owned After | SEC Forms |
|---|---|---|---|---|---|---|---|---|---|
| Zhou Rong | AMPH | SENIOR EVP, PRODUCTION CENTER | Dec 17, 2025 | Sell | $26.20 | 9,787 | $256,379.27 | 138,043 | |
| Zhou Rong | AMPH | SENIOR EVP, PRODUCTION CENTER | Dec 12, 2024 | Sell | $44.83 | 15,000 | $672,815.00 | 138,043 | |
| Zhou Rong | AMPH | SENIOR EVP, PRODUCTION CENTER | Nov 12, 2024 | Sell | $48.88 | 6,893 | $336,929.84 | 138,043 | |
| Zhou Rong | AMPH | SENIOR EVP, PRODUCTION CENTER | Sep 13, 2024 | Sell | $48.26 | 3,000 | $144,784.50 | 138,043 | |
| Zhou Rong | AMPH | SENIOR EVP, PRODUCTION CENTER | Aug 26, 2024 | Sell | $48.35 | 4,000 | $193,400.00 | 138,043 | |
| Zhou Rong | AMPH | Senior EVP, Production Center | Dec 1, 2023 | Sell | $59.08 | 7,830 | $462,195.40 | 138,043 |