Michael A. Lewis, Director at NPK International Inc. (NPKI), sold 2,013 shares at $15.30 ($31K) on 2026-05-15, disclosed to the SEC on 2026-05-19.
Scheduled sale ($31k) by Director under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.
| Filing → |
| NPKI | SELL | 2026-02-25 | $29K | — | Filing → |
| NPKI | SELL | 2025-11-25 | $24K | — | Filing → |
| NPKI | SELL | 2025-08-26 | $21K | — | Filing → |