Rong Zhou, EVP, Production Center at Amphastar Pharmaceuticals, Inc. (AMPH), sold 5,000 shares at $51.79 ($259K) on 2023-06-15, disclosed to the SEC on 2023-06-20.
Seasonal sale ($259k) by EVP, Production Center — this insider has traded AMPH in June in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.
| Filing → |
| AMPH | SELL | 2024-12-16 | $673K | — | Filing → |
| AMPH | SELL | 2024-11-13 | $674K | — | Filing → |
| AMPH | SELL | 2024-09-17 | $145K | — | Filing → |