AMPH Insider Activity
View recent SEC Form 4 insider transactions for AMPH, including purchases, sales, option exercises, and other insider filings.
| Date | Insider | Type | Quantity | Price | Total Value | Shares Owned |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | PETERS WILLIAM J | Sale | 4,139 | $25.00 | $103,475.00 | 168,707 |
| Sep 16, 2026 | Zhou Rong | Exercise | 10,000 | $13.35 | $133,500.00 | 179,203 |
| Sep 02, 2026 | Zhou Rong | Sale | 3,187 | $23.63 | $75,305.94 | 169,203 |
| Aug 11, 2026 | PRINS RICHARD K | Sale | 7,973 | $20.30 | $161,851.90 | 29,625 |
| Aug 07, 2026 | PETERS WILLIAM J | Exercise | 5,053 | $19.79 | $99,998.87 | 181,026 |
| Aug 07, 2026 | PETERS WILLIAM J | Sale | 8,180 | $22.48 | $183,886.40 | 172,846 |
| Jul 09, 2026 | Pierce Anthony T | Grant | 7,886 | $0.00 | $0.00 | 7,886 |
| Jun 02, 2026 | Lee Howard | Tax Withheld | 769 | $18.45 | $14,188.05 | 159,350 |
| Jun 01, 2026 | Deflin Gayle | Grant | 8,143 | $0.00 | $0.00 | 19,057 |
| Jun 01, 2026 | Gaugh David Russell | Grant | 8,143 | $0.00 | $0.00 | 14,447 |
| Jun 01, 2026 | Gerst Diane G. | Grant | 8,143 | $0.00 | $0.00 | 31,899 |
| Jun 01, 2026 | Lee Howard | Grant | 8,143 | $0.00 | $0.00 | 160,119 |
| Jun 01, 2026 | PRINS RICHARD K | Grant | 8,143 | $0.00 | $0.00 | 37,598 |
| Jun 01, 2026 | ZASLOFF MICHAEL A | Grant | 8,143 | $0.00 | $0.00 | 37,667 |
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