Gregg Piontek, Senior Vice President and CFO at NPK International Inc. (NPKI), sold 217,180 shares at $14.10 ($3.1M) on 2026-03-04, disclosed to the SEC on 2026-03-05.
Open-market sale of $3.1M NPKI by Senior Vice President and CFO. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $14.02 | 35,000 | $491K | 16.1% |
| 2 | $14.02 | 35,000 | $491K | 16.1% |
| 3 | $14.10 | 73,590 | $1.0M | 33.9% |
| 4 | $14.10 | 73,590 | $1.0M | 33.9% |
| Total | $14.07 avg | 217,180 | $3.1M | 100% |
| Filing → |
| NPKI | SELL | 2026-03-26 | $451K | — | Filing → |
| NR | BUY | 2022-08-09 | $26K | — | Filing → |
| NR | BUY | 2020-11-12 | $16K | — | Filing → |