Petersen Floyd F.
SEC CIK 1611286 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| AMPH | Amphastar Pharmaceuticals, Inc. | Dir | 71.4K | — | $1.99M | 47 | 2021-12-22 | 2025-12-11 |
Most active insiders at AMPH, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Petersen Floyd F. | Dir | — | $575.6K |
| 2 | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | — | $571.1K |
| 3 | PETERS WILLIAM J | CFO, EVP, Treas, Dir | — | $287.4K |
| 4 | PRINS RICHARD K | Dir | — | $275.1K |
| 5 | Pierce Anthony T | Dir | — | — |
| 6 | Gaugh David Russell | Dir | — | — |
| 7 | Deflin Gayle | Dir | — | — |
| 8 | Liawatidewi Yakob | EVP CORP ADMIN CENTER, Dir | — | — |
| 9 | Gerst Diane G. | Dir | — | — |
| 10 | Zhang Jack Y. | CEO, CSO, Dir, 10% | — | — |
Transactions 47
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2025-12-15 | 2025-12-11+ | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $25.82 | -4,163 | 71.4K | -6% | -$107.5K |
| D | 2025-11-17 | 2025-11-13 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale+OE | $26.49 | -16.7K | 75.5K | -18% | -$441.8K |
| D | 2025-11-17 | 2025-11-13 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | M - OptEx | $16.69 | +16.7K | 92.2K | +22% | +$278.4K |
| 2025-11-05 | 2025-11-03 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $25.27 | -500 | 75.5K | -0.7% | -$12.6K | |
| 2025-10-02 | 2025-10-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $27.20 | -500 | 76.0K | -0.7% | -$13.6K | |
| 2025-09-03 | 2025-09-02 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $30.98 | -500 | 76.5K | -0.6% | -$15.5K | |
| 2025-08-04 | 2025-08-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $20.83 | -500 | 77.0K | -0.6% | -$10.4K | |
| 2025-07-03 | 2025-07-02 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $23.47 | -500 | 77.5K | -0.6% | -$11.7K | |
| D | 2025-06-04 | 2025-06-02 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | A - Grant | $0.00 | +5,122 | 78.0K | +7% | $0 |
| D | 2025-06-04 | 2025-06-02 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $25.67 | -500 | 72.9K | -0.7% | -$12.8K |
| 2025-05-02 | 2025-05-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $24.08 | -500 | 73.4K | -0.7% | -$12.0K | |
| 2025-04-02 | 2025-04-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $28.38 | -500 | 73.9K | -0.7% | -$14.2K | |
| 2025-03-07 | 2025-03-06 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $27.99 | -1,000 | 74.4K | -1% | -$28.0K | |
| 2024-09-06 | 2024-09-05 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $46.47 | -3,000 | 75.4K | -4% | -$139.4K | |
| 2024-06-11 | 2024-06-10 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $41.40 | -3,000 | 78.4K | -4% | -$124.2K | |
| D | 2024-06-05 | 2024-06-03 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | A - Grant | $0.00 | +3,076 | 81.4K | +4% | $0 |
| D | 2024-06-05 | 2024-06-03 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $42.65 | -500 | 78.3K | -0.6% | -$21.3K |
| 2024-05-02 | 2024-05-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $41.67 | -500 | 78.8K | -0.6% | -$20.8K | |
| 2024-04-02 | 2024-04-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $43.43 | -500 | 79.3K | -0.6% | -$21.7K | |
| M | 2024-03-04 | 2024-03-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $45.69 | -500 | 79.9K | -0.6% | -$22.8K |
| M | 2024-02-02 | 2024-02-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $53.10 | -500 | 80.4K | -0.6% | -$26.5K |
| M | 2024-01-03 | 2024-01-02 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $61.36 | -500 | 80.8K | -0.6% | -$30.7K |
| M | 2023-12-04 | 2023-12-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $57.90 | -500 | 81.7K | -0.6% | -$29.0K |
| 2023-11-02 | 2023-11-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $45.30 | -500 | 81.8K | -0.6% | -$22.6K | |
| 2023-10-03 | 2023-10-02 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $45.78 | -500 | 82.3K | -0.6% | -$22.9K | |
| D | 2023-06-07 | 2023-06-05 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | A - Grant | $0.00 | +2,716 | 82.8K | +3% | $0 |
| 2023-05-18 | 2023-05-17 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $43.13 | -5,000 | 80.1K | -6% | -$215.7K | |
| 2023-04-04 | 2023-04-03 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $37.72 | -491 | 85.1K | -0.6% | -$18.5K | |
| M | 2023-03-02 | 2023-03-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $36.70 | -500 | 85.7K | -0.6% | -$18.3K |
| 2023-02-02 | 2023-02-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $30.35 | -500 | 86.1K | -0.6% | -$15.2K | |
| 2023-01-04 | 2023-01-03 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $27.94 | -500 | 86.6K | -0.6% | -$14.0K | |
| 2022-12-02 | 2022-12-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $30.13 | -500 | 87.1K | -0.6% | -$15.1K | |
| 2022-11-02 | 2022-11-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $31.13 | -500 | 87.6K | -0.6% | -$15.6K | |
| 2022-10-04 | 2022-10-03 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $28.59 | -500 | 88.1K | -0.6% | -$14.3K | |
| 2022-09-02 | 2022-09-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $29.44 | -500 | 88.6K | -0.6% | -$14.7K | |
| 2022-08-02 | 2022-08-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $37.48 | -500 | 89.1K | -0.6% | -$18.7K | |
| 2022-07-05 | 2022-07-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $34.78 | -500 | 89.6K | -0.6% | -$17.4K | |
| D | 2022-06-14 | 2022-06-10 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | A - Grant | $0.00 | +4,163 | 90.1K | +5% | $0 |
| M | 2022-06-02 | 2022-06-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $37.00 | -500 | 86.1K | -0.6% | -$18.5K |
| D | 2022-05-19 | 2022-05-18 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | M - OptEx | $17.11 | +20.3K | 96.4K | +27% | +$347.2K |
| D | 2022-05-19 | 2022-05-18 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale+OE | $35.05 | -9,924 | 86.4K | -10% | -$347.8K |
| M | 2022-05-03 | 2022-05-02 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $35.18 | -295 | 76.1K | -0.4% | -$10.4K |
| M | 2022-04-04 | 2022-04-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $36.69 | -500 | 76.4K | -0.6% | -$18.3K |
| 2022-03-01 | 2022-03-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $27.27 | -500 | 76.9K | -0.6% | -$13.6K | |
| M | 2022-02-02 | 2022-02-01 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $24.09 | -500 | 77.8K | -0.6% | -$12.0K |
| 2022-01-04 | 2022-01-03 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $23.22 | -500 | 77.9K | -0.6% | -$11.6K | |
| 2021-12-23 | 2021-12-22 | AMPH | Amphastar Pharmaceuticals, Inc. | Petersen Floyd F. | Dir | S - Sale | $22.50 | -1,000 | 78.4K | -1% | -$22.5K |
Purchase Sale Sale after option exercise All abbreviations