Mary Z. Luo serves as Executive at Amphastar Pharmaceuticals, Inc., where they oversee executive responsibilities. Since joining the company, Mary Z. Luo has executed 83 insider transactions totaling $33.9M, demonstrating a bearish approach to their equity position. Their most recent transaction on Mar 17, 2024 involved selling 15,768 shares valued at $678.8K.
Mary Z. Luo currently holds 2,433,554 shares of Amphastar Pharmaceuticals, Inc. (AMPH), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mary Z. Luo has been a net seller of AMPH stock. They have purchased $0 and sold $33.9M worth of shares.
Mary Z. Luo's most recent insider trade was on Mar 17, 2024, when they sold 15,768 shares at $43.05 per share.
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| 7,052 |
| $43.05 |
| Discretionary |
| Mar 15, 2024 | AMPH | $8.7M | Payment | 202,658 | $43.05 | Discretionary |
| Mar 15, 2024 | AMPH | $3.9M | Option Exercise | 310,930 | $12.46 | Discretionary |
| Mar 15, 2024 | AMPH | $17.6M | Payment | 408,721 | $43.05 | Discretionary |
| Mar 15, 2024 | AMPH | $9.0M | Option Exercise | 722,046 | $12.46 | Discretionary |
| Mar 6, 2024 | AMPH | $325.6K | Payment | 7,031 | $46.31 | Discretionary |
| Mar 6, 2024 | AMPH | $138.5K | Payment | 2,990 | $46.31 | Discretionary |
| Jan 9, 2024 | AMPH | $216.7K | Sale | 3,714 | $58.35 | Planned |
| Jan 9, 2024 | AMPH | $1.8M | Sale | 31,764 | $57.70 | Planned |
| Jan 9, 2024 | AMPH | $2.9M | Sale | 50,678 | $56.70 | Planned |
| Jan 8, 2024 | AMPH | $2.4M | Sale | 41,282 | $58.25 | Planned |
| Jan 8, 2024 | AMPH | $1.1M | Sale | 18,858 | $56.98 | Planned |
| Jan 8, 2024 | AMPH | $2.2M | Sale | 37,865 | $59.24 | Planned |
| Jan 8, 2024 | AMPH | $1.7M | Sale | 27,563 | $59.99 | Planned |
| Jan 8, 2024 | AMPH | $260.7K | Sale | 4,261 | $61.19 | Planned |
| Jan 8, 2024 | AMPH | $102.8K | Sale | 1,663 | $61.81 | Planned |
| Jan 8, 2024 | AMPH | $136.2K | Sale | 2,152 | $63.27 | Planned |
| Mar 17, 2023 | AMPH | $255.9K | Payment | 7,052 | $36.29 | Discretionary |
| Mar 17, 2023 | AMPH | $572.2K | Payment | 15,768 | $36.29 | Discretionary |
| Mar 16, 2023 | AMPH | $375.9K | Payment | 9,998 | $37.60 | Discretionary |
| Mar 16, 2023 | AMPH | $0 | Gift | 57,365 | $N/A | Discretionary |
| Mar 16, 2023 | AMPH | $0 | Gift | 57,365 | $N/A | Discretionary |
| Mar 16, 2023 | AMPH | $949.1K | Payment | 25,241 | $37.60 | Discretionary |
| Mar 15, 2023 | AMPH | $103.3K | Payment | 2,803 | $36.84 | Discretionary |
| Mar 15, 2023 | AMPH | $310.7K | Payment | 8,434 | $36.84 | Discretionary |
| May 19, 2022 | AMPH | $3.9K | Sale | 115 | $34.28 | Discretionary |
| May 19, 2022 | AMPH | $1.4M | Sale | 41,615 | $33.76 | Discretionary |
| May 18, 2022 | AMPH | $1.9M | Sale | 55,264 | $33.97 | Discretionary |
| May 18, 2022 | AMPH | $71.8K | Sale | 2,006 | $35.78 | Discretionary |