Amphastar Pharmaceuticals, Inc. — Form 4
Filed August 12, 2026 · analyzed by the Insider Agent
4
▼ Likely negative
significance 46/100
What the filing says
Director PRINS RICHARD K (AMPH) sold 8K shares (~$162K) on the open market (21% of holdings). Large sale — ~21% of holdings.
Why this rating
Large sale — ~21% of holdings.
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