Richard K. Prins, Director at Amphastar Pharmaceuticals, Inc. (AMPH), sold 13,000 shares at $43.50 ($428K) on 2023-05-15, disclosed to the SEC on 2023-05-16.
Seasonal sale ($428k) by Director — this insider has traded AMPH in May in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $0.00 | 3,000 | $0 | 0.0% |
| 2 | $42.06 | 5,000 | $210K | 49.2% |
| 3 | $43.50 | 5,000 | $218K | 50.8% |
| Total | $32.91 avg | 13,000 | $428K | 100% |
| Filing → |
| AMPH | SELL | 2024-12-11 | $875K | — | Filing → |
| AMPH | SELL | 2024-11-13 | $244K | — | Filing → |
| AMPH | SELL | 2024-08-13 | $1.5M | — | Filing → |