Form 4 for AMPH Amphastar Pharmaceuticals, Inc.
Accepted 2026-03-06 00:00:00 ET · period of report 2026-03-04 · accession 0001263136-26-000003 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-06 | 2026-03-04 | AMPH | PETERS WILLIAM J | CFO, EVP, Treas, Dir | F - Tax | $19.96 | -1,744 | 123.8K | -1% | -$34.8K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-04 | F | D | 1,744 | $19.96 | 123,786 | D | — | — | (F1) The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs. (F2) Includes 545 shares acquired on May 31, 2025 under the Issuer's 2014 Employee Stock Purchase Plan. |