SEC Form 4 · accession 0001047579-26-000005
Amphastar Pharmaceuticals, Inc. · AMPH
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Richard K Prins
Director
Period of report
Aug 11, 2026
Accepted (ET)
Aug 12, 2026 · 6:14 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001297184
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 11, 2026 | S | 7,973 | $20.30 | D | 29,625 | D |
Table II — derivative securities
No Table II lines on this filing.