Gregg Piontek insider trades

Open-market stock purchases and sales by Gregg Piontek, Senior Vice President and CFO at NPK International Inc, from SEC Form 4 filings since Mar 4, 2010.

Recent trades

DateStockTradeValue
Jun 1, 2026NPKI NPK International IncSold (not open market)$227K
Jun 1, 2026NPKI NPK International IncSold (not open market)$128K
Jun 1, 2026NPKI NPK International IncSold (not open market)$161K
Jun 1, 2026NPKI NPK International IncBought (not open market)—
May 19, 2026NPKI NPK International IncBought (not open market)—
Apr 9, 2026NPKI NPK International IncSold$226K
Apr 1, 2026NPKI NPK International IncSold$508K
Mar 25, 2026NPKI NPK International IncSold$225K
Mar 4, 2026NPKI NPK International IncSold$1M
Mar 4, 2026NPKI NPK International IncSold$491K
Mar 4, 2026NPKI NPK International IncBought (not open market)—

Companies traded

  • NPKI NPK International Inc: 5 sales, last Jun 1, 2026
  • NR Newpark Resources Inc: 5 buys, 15 sales, last Jun 1, 2024
  • NRCC Newpark Resources Inc: 4 sales, last May 6, 2011

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