Piontek Gregg — Senior Vice President and CFO
Insider trading activity for Piontek Gregg sourced from SEC EDGAR Form 4 filings.
Overview
- Title: Senior Vice President and CFO
- Company: NPK International Inc.
- Total insider trades: 9
- Total buy volume: $0
- Total sell volume: $959K
- Last trade: Jun 3, 2026
Recent Trades
| Date | Insider | Ticker / Company | Type | Shares | Value |
|---|---|---|---|---|---|
| Jun 1, 2026 | Piontek Gregg | NPKI NPK International Inc. | OTHER | 40,379 | N/A |
| Jun 1, 2026 | Piontek Gregg | NPKI NPK International Inc. | OTHER | 40,379 | N/A |
| Jun 1, 2026 | Piontek Gregg | NPKI NPK International Inc. | OTHER | 11,241 | $161K |
| Jun 1, 2026 | Piontek Gregg | NPKI NPK International Inc. | OTHER | 15,889 | $227K |
| Jun 1, 2026 | Piontek Gregg | NPKI NPK International Inc. | OTHER | 8,959 | $128K |
| May 19, 2026 | Piontek Gregg | NPKI NPK International Inc. | OTHER | 34,566 | N/A |
| Apr 9, 2026 | Piontek Gregg | NPKI NPK International Inc. | SELL | 15,000 | $226K |
| Apr 1, 2026 | Piontek Gregg | NPKI NPK International Inc. | SELL | 35,000 | $508K |
| Mar 25, 2026 | Piontek Gregg | NPKI NPK International Inc. | SELL | 15,000 | $225K |