CFO Piontek Gregg sells 35,000 NPKI shares at $14.51; holds 834,326 shares post-sale
Piontek Gregg, Senior Vice President and CFO of NPK International Inc., sold 35,000 shares (35.0K shares) on 2026-04-01 at $14.51, reducing his holdings by 4.0% from 869,326 to 834,326 shares. The transaction occurred just one month after two other NPKI sales on 2026-03-04, both of which showed modest positive 30-day returns (2.3% and 2.9% respectively), indicating the insider sold before recent price appreciation. The company shows solid fundamentals with annual revenue growth of +27.4%, a P/E of 5.48, and quarterly revenue of $68.8M with net income of $5.7M, suggesting reasonable valuation. The stock is currently -3.4% from its 52-week high of $14.93 and up 19.2% over 90 days, placing the transaction near but not at peak valuations during a sustained uptrend.