MarketPeel
Insider Trading Intelligence
Mon, Jun 1, 2026
Jun 1
bought $0.00 of AMPH
8,143 shares @ $0.00
Increased holdings by +27.60%
Cluster Buy
Trade made by a director
Part of a cluster of 3 transactions by 2 insiders
Unscheduled trade
50% win rate · +4.9% median edge vs SPY (22 trades, 90-day)
Price 25% below 200-day moving average
Small Cap stock — insider trades carry more weight
AMPHAmphastar Pharmaceuticals, Inc.
Health CarePharmaceuticals
1D0.00%
1W-0.40%
1M-4.59%
3M-13.78%
6M
1Y

Recent insider activity at AMPH

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