LANIGAN MATTHEW 4

What Happened
Matthew Lanigan, President & CEO and a director of NPK International, sold 167,375 shares in open-market transactions on June 3, 2026. The weighted-average sale price was $14.43 per share, yielding proceeds of approximately $2,415,907. This was a sale (transaction code S), executed automatically under a pre-established Rule 10b5-1 trading plan.

Key Details

• Transaction date: June 3, 2026 (reported on Form 4 filed June 5, 2026). Filing was timely (filed within the standard 2-business-day window).
• Price: weighted average $14.43; individual sale prices ranged from $14.29 to $14.56.
• Shares sold: 167,375; proceeds ≈ $2,415,907.
• Shares owned after transaction: not disclosed in the provided Form 4.
• Footnotes: (1) Sale executed automatically under a Rule 10b5-1 plan adopted March 4, 2026. (2) Weighted-average price reported; the reporting person will provide a breakdown of shares sold at each price on request.

Context
Sales under Rule 10b5-1 plans are pre-arranged and often routine, and do not by themselves indicate the insider’s view of the company. Retail investors should treat this as an executed plan sale rather than an ad hoc insider decision; consider this alongside other insider transactions and company fundamentals.