Gerst Diane G.
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Gerst Diane G.. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| AMPH | Award / Grant | 5,122 | — | — | Jun 2, 2025 | |
| AMPH | Award / Grant | 3,076 | — | — | Jun 3, 2024 | |
| AMPH | Award / Grant | 2,716 | — | — | Jun 5, 2023 | |
| AMPH | Option Exercise | 1,520 | $20.08 | $30,522 | Jul 18, 2022 | |
| AMPH | Option Exercise | 1,521 | $20.08 | $30,542 | Jul 11, 2022 | |
| AMPH | Option Exercise | 1,813 | $20.08 | $36,405 | Jul 5, 2022 | |
| AMPH | Option Exercise | 3,333 | $20.03 | $66,760 | Jun 30, 2022 | |
| AMPH | Award / Grant | 4,163 | — | — | Jun 10, 2022 | |
| AMPH | Award / Grant | 3,009 | — | — | Jun 7, 2021 | |
| AMPH | Award / Grant | 2,925 | — | — | Jun 8, 2020 | |
| AMPH | Award / Grant | 2,745 | — | — | Jun 12, 2019 | |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $19.48 | $10,188 | Dec 19, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $18.96 | $9,916 | Dec 12, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $18.15 | $9,492 | Nov 28, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $18.81 | $9,838 | Nov 21, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $17.77 | $9,294 | Nov 15, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $17.93 | $9,377 | Nov 7, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $18.29 | $9,566 | Oct 24, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 523 | $18.48 | $9,665 | Oct 17, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Option Exercise | 8,444 | $11.33 | $95,671 | Oct 5, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Tax Withholding | 146 | $16.18 | $2,362 | Jun 15, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Tax Withholding | 754 | $14.80 | $11,159 | Apr 14, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Tax Withholding | 614 | $13.76 | $8,449 | Mar 26, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Tax Withholding | 1,194 | $13.75 | $16,418 | Mar 16, 2017 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 2,940 | $20.51 | $60,299 | Dec 15, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 24,046 | $19.28 | $463,607 | Aug 19, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Tax Withholding | 146 | $15.76 | $2,301 | Jun 15, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Sale | 1,427 | $13.97 | $19,935 | May 18, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Option Exercise | 5,607 | $10.48 | $58,761 | Apr 18, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Tax Withholding | 741 | $12.66 | $9,381 | Apr 14, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Tax Withholding | 614 | $11.96 | $7,343 | Mar 26, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Award / Grant | 11,253 | — | — | Mar 17, 2016 |
| AMPH | EVP, QA & Regulatory Affairs | Award / Grant | 1,544 | — | — | Apr 14, 2015 |
| AMPH | Corp. SVP of Quality Assurance | Sale | 10,000 | $15.79 | $157,900 | Apr 8, 2015 |
| AMPH | Corp. SVP of Quality Assurance | Award / Grant | 6,688 | — | — | Mar 26, 2015 |