Richard Koo, Director at Amphastar Pharmaceuticals, Inc. (AMPH), bought 4,900 shares at $10.08 ($49K) on 2014-08-15, disclosed to the SEC on 2014-08-19.
Open-market purchase of $49k AMPH by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.
| Filing → |
| AMPH | SELL | 2018-12-12 | $1.2M | — | Filing → |