Gregg Piontek
Senior Vice President and CFO · 5 filings · Latest: Jun 1, 2026
NPK International Inc.
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
NPKI | Gregg Piontek | Senior Vice President and CFO | Jun 1, 2026 | Option Exercise | $0.00 | 40,379 | — | 858,182 | |
NPKI | Gregg Piontek | Senior Vice President and CFO | Jun 1, 2026 | Tax Withholding | $14.31 | 36,089 | $516.4K | 817,803 | |
NPKI | Gregg Piontek | Senior Vice President and CFO | May 19, 2026 | Grant/Award | $0.00 | 34,566 | — | 853,892 | |
NPKI | Gregg Piontek | Senior Vice President and CFO | Apr 9, 2026 | Sale | $15.05 | 15,000 | $225.7K | 819,326 | |
NPKI | Gregg Piontek | Senior Vice President and CFO | Apr 1, 2026 | Sale | $14.51 | 35,000 | $507.9K | 834,326 | |
NPKI | Gregg Piontek | Senior Vice President and CFO | Mar 25, 2026 | Sale | $15.03 | 15,000 | $225.4K | 869,326 |