Matthew Lanigan, President & CEO at NPK International Inc. (NPKI), sold 167,375 shares at $14.43 ($2.4M) on 2026-06-03, disclosed to the SEC on 2026-06-05.
Scheduled sale ($2.4M) by President & CEO under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.
| Filing → |
| NR | BUY | 2022-08-09 | $48K | — | Filing → |
| NR | SELL | 2018-05-03 | $398K | — | Filing → |
| NR | SELL | 2017-08-02 | $641K | — | Filing → |