ZASLOFF MICHAEL A
SEC CIK 1033511 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| AMPH | Amphastar Pharmaceuticals, Inc. | Dir | 37.7K | — | $2.34M | 12 | 2022-03-16 | 2026-06-01 |
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% | — | — |
| 13 | ZASLOFF MICHAEL A | Dir | — | — |
Transactions 12
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-03 20:34 | 2026-06-01 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | A - Grant | $0.00 | +8,143 | 37.7K | +28% | $0 |
| D | 2025-06-04 | 2025-06-02 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | A - Grant | $0.00 | +5,122 | 29.5K | +21% | $0 |
| D | 2024-06-05 | 2024-06-03 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | A - Grant | $0.00 | +3,076 | 24.4K | +14% | $0 |
| M | 2024-03-06 | 2024-03-05 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | S - Sale | $47.18 | -12.5K | 24.4K | -34% | -$589.7K |
| 2023-08-16 | 2023-08-15 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | S - Sale | $57.22 | -12.8K | 33.8K | -27% | -$730.1K | |
| D | 2023-06-07 | 2023-06-05 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | A - Grant | $0.00 | +2,716 | 46.6K | +6% | $0 |
| 2023-05-16 | 2023-05-15 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | S - Sale | $42.18 | -7,500 | 43.9K | -15% | -$316.4K | |
| D | 2022-06-14 | 2022-06-10 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | A - Grant | $0.00 | +4,163 | 51.4K | +9% | $0 |
| D | 2022-05-17 | 2022-05-16 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | M - OptEx | $17.11 | +10.3K | 57.5K | +22% | +$176.1K |
| D | 2022-05-17 | 2022-05-16 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | S - Sale+OE | $35.61 | -10.3K | 47.2K | -18% | -$366.5K |
| D | 2022-03-17 | 2022-03-16 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | M - OptEx | $17.11 | +10.0K | 57.2K | +21% | +$171.1K |
| D | 2022-03-17 | 2022-03-16 | AMPH | Amphastar Pharmaceuticals, Inc. | ZASLOFF MICHAEL A | Dir | S - Sale+OE | $33.71 | -10.0K | 47.2K | -17% | -$337.1K |
Purchase Sale Sale after option exercise All abbreviations