Form 4 for AMPH Amphastar Pharmaceuticals, Inc.
Accepted 2026-09-23 18:02:41 ET · period of report 2026-09-21 · accession 0001263136-26-000014 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-09-23 18:02 | 2026-09-21 | AMPH | PETERS WILLIAM J | CFO, EVP, Treas, Dir | S - Sale | $25.00 | -4,139 | 168.7K | -2% | -$103.5K |
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 | 2026-09-21 | S | D | 4,139 | $25.00 | 168,707 | D | — | — | (F1) The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2026. |