Form 4: Amphastar Pharmaceuticals Director Sells Shares
Insider Transaction (Form 4)
Richard K Prins, a Director of Amphastar Pharmaceuticals, Inc., sold 7,973 shares of common stock on August 11, 2026 for $20.30 per share.
Summary
- Open-market sale: disposed of 7,973 Common Stock at $20.30 ($161,852) on August 11, 2026; holds 29,625 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative signal: an insider sold $161,852 of stock on the open market.
Insider Transactions
Richard K Prins — Director
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-11 | Open-market sale | Common Stock | 7,973 | $20 | $161.9K | 29,625 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-11 | Open-market sale (7,973 shares) |
Keywords
insider transaction, Form 4, AMPH, Amphastar Pharmaceuticals, Inc., bearish, Richard K Prins
Disclaimer:The information provided here is for general informational purposes only and does not constitute financial advice, recommendation, or endorsement of any kind. It may contain errors or omissions. You should not rely on this information to make financial decisions. Always seek the advice of a qualified financial professional before making any investment or financial decisions. Use of this information is at your own risk.