Jack Y. Zhang insider trades

Open-market stock purchases and sales by Jack Y. Zhang, CEO & CHIEF SCIENTIFIC OFFICER at Amphastar Pharmaceuticals, Inc, from SEC Form 4 filings since Mar 26, 2015.

Track record: 100% of 2 scored buys are up 5% or more since purchase, averaging +63%.

Recent trades

DateStockTradeValue
Mar 4, 2026AMPH Amphastar Pharmaceuticals, IncSold (not open market)$115K
Mar 4, 2026AMPH Amphastar Pharmaceuticals, IncSold (not open market)$48.5K

Companies traded

  • AMPH Amphastar Pharmaceuticals, Inc: 2 buys, 62 sales, last Mar 4, 2026

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