Luo Mary Z.
SEC CIK 1611156 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| AMPH | Amphastar Pharmaceuticals, Inc. | COO, COB, Chief Scientist, Dir, 10% | 1.18M | — | $20.73M | 24 | 2022-03-15 | 2026-03-06 |
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% | — | — |
| 11 | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | — | — |
Transactions 24
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I | 2026-03-10 | 2026-03-06 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $19.34 | -3,077 | 1.18M | -0.3% | -$59.5K |
| 2026-03-10 | 2026-03-06 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $19.34 | -7,773 | 2.83M | -0.3% | -$150.3K | |
| I | 2025-03-06 | 2025-03-04 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $27.62 | -2,426 | 1.10M | -0.2% | -$67.0K |
| 2025-03-06 | 2025-03-04 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $27.62 | -5,753 | 2.50M | -0.2% | -$158.9K | |
| 2024-11-12 | 2024-11-11 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | G - Gift | $0.00 | -125.0K | 2.51M | -5% | $0 | |
| I | 2024-11-12 | 2024-11-11 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | G - Gift | $0.00 | -125.0K | 1.10M | -10% | $0 |
| D | 2024-03-19 | 2024-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | M - OptEx | $12.46 | +722.0K | 2.86M | +34% | +$9.00M |
| DMI | 2024-03-19 | 2024-03-15+ | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $43.05 | -209.7K | 1.24M | -14% | -$9.03M |
| DM | 2024-03-19 | 2024-03-15+ | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $43.05 | -424.5K | 2.43M | -15% | -$18.27M |
| DI | 2024-03-19 | 2024-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | M - OptEx | $12.46 | +310.9K | 1.44M | +28% | +$3.87M |
| I | 2024-03-08 | 2024-03-06 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $46.31 | -2,990 | 1.13M | -0.3% | -$138.5K |
| 2024-03-08 | 2024-03-06 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $46.31 | -7,031 | 2.14M | -0.3% | -$325.6K | |
| M | 2024-01-10 | 2024-01-08+ | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | S - Sale | $58.23 | -219.8K | 1.24M | -15% | -$12.80M |
| M | 2023-03-20 | 2023-03-16+ | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $37.10 | -41.0K | 2.08M | -2% | -$1.52M |
| MI | 2023-03-20 | 2023-03-16 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | G - Gift | $0.00 | -114.7K | 0 | -100% | $0 |
| MI | 2023-03-20 | 2023-03-16+ | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Scientist, Dir, 10% | F - Tax | $37.06 | -17.1K | 1.46M | -1% | -$631.8K |
| 2023-03-17 | 2023-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Sci, Dir, 10% | F - Tax | $36.84 | -8,434 | 2.18M | -0.4% | -$310.7K | |
| I | 2023-03-17 | 2023-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | COO, COB, Chief Sci, Dir, 10% | F - Tax | $36.84 | -2,803 | 1.53M | -0.2% | -$103.3K |
| M | 2022-05-20 | 2022-05-18+ | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | CEO, CSO, Dir, 10% | S - Sale | $34.00 | -108.8K | 2.11M | -5% | -$3.70M |
| M | 2022-05-18 | 2022-05-16+ | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | CEO, CSO, Dir, 10% | S - Sale | $35.75 | -118.4K | 2.29M | -5% | -$4.23M |
| DI | 2022-03-17 | 2022-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | CEO, CSO, Dir, 10% | A - Grant | $0.00 | +32.4K | 1.52M | +2% | $0 |
| DI | 2022-03-17 | 2022-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | CEO, CSO, Dir, 10% | F - Tax | $34.74 | -4,786 | 1.52M | -0.3% | -$166.3K |
| D | 2022-03-17 | 2022-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | CEO, CSO, Dir, 10% | F - Tax | $34.74 | -14.8K | 2.38M | -0.6% | -$512.7K |
| D | 2022-03-17 | 2022-03-15 | AMPH | Amphastar Pharmaceuticals, Inc. | Luo Mary Z. | CEO, CSO, Dir, 10% | A - Grant | $0.00 | +76.9K | 2.40M | +3% | $0 |
Purchase Sale Sale after option exercise All abbreviations