Richard K Prins insider trades

Open-market stock purchases and sales by Richard K Prins, Unknown at Amphastar Pharmaceuticals, Inc, from SEC Form 4 filings since Apr 18, 2011.

Track record: 100% of 2 scored buys are up 5% or more since purchase, averaging +161%.

Recent trades

DateStockTradeValue
Aug 11, 2026AMPH Amphastar Pharmaceuticals, IncSold$162K
Jun 1, 2026AMPH Amphastar Pharmaceuticals, IncBought (not open market)—
Jun 1, 2026AMPH Amphastar Pharmaceuticals, IncBought (not open market)—
Apr 1, 2026IGC IGC Pharma, IncBought (not open market)—
Apr 1, 2026IGC IGC Pharma, IncBought (not open market)—
Jan 19, 2026IGC IGC Pharma, IncBought (not open market)—
Nov 25, 2025AMPH Amphastar Pharmaceuticals, IncSold$113K
Nov 25, 2025AMPH Amphastar Pharmaceuticals, IncBought (not open market)—
Oct 17, 2025IGC IGC Pharma, IncBought (not open market)—

Companies traded

  • AMPH Amphastar Pharmaceuticals, Inc: 2 buys, 44 sales, last Aug 11, 2026
  • IGC IGC Pharma, Inc: 1 buy, 11 sales, last Apr 1, 2026

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