Diane G. Gerst serves as Executive at Amphastar Pharmaceuticals, Inc., where they oversee executive responsibilities. Since joining the company, Diane G. Gerst has executed 49 insider transactions totaling $1.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jun 3, 2024 involved receiving (via award) 3,076 shares valued at $0.
Diane G. Gerst currently holds 18,634 shares of Amphastar Pharmaceuticals, Inc. (AMPH), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Diane G. Gerst has been a net seller of AMPH stock. They have purchased $0 and sold $1.6M worth of shares.
Diane G. Gerst's most recent insider trade was on Jun 3, 2024, when they sold 3,076 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Jul 18, 2022 | AMPH | $30.5K | Option Exercise | 1,520 | $20.08 | Discretionary |
| Jul 18, 2022 | AMPH | $56.6K | Sale | 1,520 | $37.23 | Discretionary |
| Jul 11, 2022 | AMPH | $30.5K | Option Exercise | 1,521 | $20.08 | Discretionary |
| Jul 11, 2022 | AMPH | $55.2K | Sale | 1,521 | $36.26 | Discretionary |
| Jul 5, 2022 | AMPH | $36.4K | Option Exercise | 1,813 | $20.08 | Discretionary |
| Jul 5, 2022 | AMPH | $63.5K | Sale | 1,813 | $35.00 | Discretionary |
| Jun 30, 2022 | AMPH | $66.8K | Option Exercise | 3,333 | $20.03 | Discretionary |
| Jun 30, 2022 | AMPH | $36.4K | Option Exercise | 1,813 | $20.08 | Discretionary |
| Jun 30, 2022 | AMPH | $180.1K | Sale | 5,146 | $35.00 | Discretionary |
| Jun 10, 2022 | AMPH | $0 | Award | 4,163 | $N/A | Discretionary |
| Jun 7, 2021 | AMPH | $0 | Award | 3,009 | $N/A | Discretionary |
| Jun 8, 2020 | AMPH | $0 | Award | 2,925 | $N/A | Discretionary |
| Jun 12, 2019 | AMPH | $0 | Award | 2,745 | $N/A | Discretionary |
| Dec 19, 2017 | AMPH | $10.2K | Sale | 523 | $19.48 | Discretionary |
| Dec 12, 2017 | AMPH | $9.9K | Sale | 523 | $18.96 | Discretionary |
| Nov 28, 2017 | AMPH | $9.5K | Sale | 523 | $18.15 | Discretionary |
| Nov 21, 2017 | AMPH | $9.8K | Sale | 523 | $18.81 | Discretionary |
| Nov 15, 2017 | AMPH | $9.3K | Sale | 523 | $17.77 | Discretionary |
| Nov 7, 2017 | AMPH | $9.4K | Sale | 523 | $17.93 | Discretionary |
| Oct 24, 2017 | AMPH | $9.6K | Sale | 523 | $18.29 | Discretionary |
| Oct 17, 2017 | AMPH | $9.7K | Sale | 523 | $18.48 | Discretionary |
| Oct 5, 2017 | AMPH | $95.7K | Option Exercise | 8,444 | $11.33 | Discretionary |
| Oct 5, 2017 | AMPH | $159.3K | Sale | 8,444 | $18.87 | Discretionary |
| Jun 15, 2017 | AMPH | $2.4K | Payment | 146 | $16.18 | Discretionary |
| Apr 14, 2017 | AMPH | $11.2K | Payment | 754 | $14.80 | Discretionary |
| Mar 26, 2017 | AMPH | $8.4K | Payment | 614 | $13.76 | Discretionary |
| Mar 17, 2017 | AMPH | $16.4K | Payment | 1,194 | $13.75 | Discretionary |
| Mar 16, 2017 | AMPH | $0 | Award | 10,861 | $N/A | Discretionary |