NPK International CEO Sells $2.4 Million Worth of Shares
Matthew Lanighan, President and CEO of NPK International (NYSE:NPKI), sold 167,375 shares for approximately $2.4 million under a prearranged Rule 10b5-1 trading plan. The transaction occurred at around the closing price on June 3, 2026 ($14.43/share). Lanighan's direct ownership decreased by about 40%, but his total beneficial ownership remains substantial.
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