Prins Richard K's Form 4 filing
Amphastar Pharmaceuticals, Inc. (AMPH) · filed Nov 25, 2025
- Accession no.
- 0001047579-25-000006
- Filed
- Nov 25, 2025
- Trade date
- Nov 25, 2025
- Filing delay
- Same day
- Rule 10b5-1 plan
- Not checked
This filing lists 2 non-derivative transactions and 1 derivative transaction. Open-market sales total $113.3K. It was filed on the trade date.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Prins Richard KCIK 0001047579 | Director |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Nov 25, 2025 | Common Stock | MOption exerciseAcquired | +4,179 | $16.69 | +$69,747.51 | 39,362 | Direct | |
| Nov 25, 2025 | Common Stock | SSaleDisposed | −4,179 | $27.10 | −$113,250.9 | 35,183 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Nov 25, 2025 | Common Stock | MOption exerciseDisposed | −4,179 | $0.00 | $0 | 0 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.