Luo Mary Z. has filed 14 insider transactions across 1 company since January 2024.
Most recent transaction: a sale of 78236 shares of Amphastar Pharmaceuticals, Inc. ($AMPH) on January 10, 2024.
Activity breakdown: 0 open-market purchases and 14 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 10, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 78236 | $54.32 | 10,068,963.0000 | 53,001,000 | 0.77% | 0.15% |
| Jan. 10, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 50514 | $54.89 | 10,018,449.0000 | 53,001,000 | 0.50% | 0.10% |
| Jan. 10, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 920 | $55.95 | 10,017,529.0000 | 53,001,000 | 0.01% | 0.00% |
| Jan. 10, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 1716 | $57.00 | 10,015,813.0000 | 53,001,000 | 0.02% | 0.00% |
| Jan. 8, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 18858 | $56.98 | 10,348,141.0000 | 53,001,000 | 0.18% | 0.04% |
| Jan. 8, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 41282 | $58.25 | 10,306,859.0000 | 53,001,000 | 0.40% | 0.08% |
| Jan. 8, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 37865 | $59.24 | 10,268,994.0000 | 53,001,000 | 0.37% | 0.07% |
| Jan. 8, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 27563 | $59.99 | 10,241,431.0000 | 53,001,000 | 0.27% | 0.05% |
| Jan. 8, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 4261 | $61.19 | 10,237,170.0000 | 53,001,000 | 0.04% | 0.01% |
| Jan. 8, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 1663 | $61.81 | 10,235,507.0000 | 53,001,000 | 0.02% | 0.00% |
| Jan. 8, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 2152 | $63.27 | 10,233,355.0000 | 53,001,000 | 0.02% | 0.00% |
| Jan. 9, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 50678 | $56.70 | 10,182,677.0000 | 53,001,000 | 0.50% | 0.10% |
| Jan. 9, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 31764 | $57.70 | 10,150,913.0000 | 53,001,000 | 0.31% | 0.06% |
| Jan. 9, 2024 | Amphastar Pharmaceuticals, Inc. | $AMPH | Luo Mary Z. | COO,Chief Scientist & Chairman | S | Common Stock | 3714 | $58.35 | 10,147,199.0000 | 53,001,000 | 0.04% | 0.01% |