Donald Win Young insider trades

Open-market stock purchases and sales by Donald Win Young, Director at NPK International Inc, from SEC Form 4 filings since May 6, 2022.

Recent trades

No open-market trades in the last 12 months.

Companies traded

  • NPKI NPK International Inc: other filings, last May 15, 2025
  • NR Newpark Resources Inc: 8 buys, last May 16, 2024

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