Amphastar Pharmaceuticals, Inc.
SEC CIK 1297184 · AMPH · last insider filing 2026-06-03
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Zasloff Michael A | Director | filed 2014 - 2026 |
| Prins Richard K | Director | filed 2014 - 2026 |
| Lee Howard | Director | filed 2014 - 2026 |
| Gerst Diane G. | Director · EVP, QA & Regulatory Affairs | filed 2014 - 2026 |
| Deflin Gayle | Director | filed 2021 - 2026 |
| Gaugh David Russell | Director | filed 2025 - 2026 |
| Peters William J | Director · CFO, Sr VP & Treasurer | filed 2014 - 2026 |
| Luo Mary Z. | Director · COO,Chief Scientist & Chairman | filed 2014 - 2026 |
| Zhang Jack Y. | Director · CEO, Chief Science Officer | filed 2014 - 2026 |
| Liawatidewi Yakob | Director · SVP Corp Admin Center | filed 2018 - 2026 |
| Petersen Floyd F. | Director | filed 2014 - 2025 |
| Koo Richard | Director | filed 2014 - 2021 |
| Maris David | Director | filed 2020 - 2021 |
| Shandell Jason B. | Director · President and General Counsel | filed 2014 - 2020 |
| Shohet Stephen B. | Director | filed 2014 - 2018 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Zhou Rong | Senior EVP, Production Center | filed 2015 - 2026 |
| Purchase Marilyn J. | Corp. Exec. VP of Operations | filed 2014 - 2015 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.