Form 4 for AMPH Amphastar Pharmaceuticals, Inc.
Accepted 2026-08-12 18:14:55 ET · period of report 2026-08-11 · accession 0001047579-26-000005 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-12 18:14 | 2026-08-11 | AMPH | PRINS RICHARD K | Dir | S - Sale | $20.30 | -7,973 | 29.6K | -21% | -$161.9K |
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 | 2026-08-11 | S | D | 7,973 | $20.30 | 29,625 | D | — | — |