Rong Zhou bought $63K of AMPH

bought $62.88k of AMPH

6,000 shares @ $10.48

Increased holdings by +7.00%

50th largest trade (out of 114)

Cluster BuyPositive 90D History

Trade made by an officer

Part of a cluster of 2 transactions by 2 insiders

63% win rate · +9.7% median edge vs SPY (8 trades, 90-day · small sample)

Insider trade was 51% below market price

Price 11% above 200-day moving average

AMPHAmphastar Pharmaceuticals, Inc.

Health CarePharmaceuticals

1D0.00%

1W-0.40%

1M-4.59%

3M-13.78%

6M—

1Y—

Recent insider activity at AMPH