Piontek Gregg
NPK International Inc. · Senior Vice President and CFO
Piontek Gregg is listed in public filings as officer: Senior Vice President and CFO. This Piontek Gregg insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include NPK International Inc. (NPKI). Investors use Piontek Gregg's insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.
Latest Actions
| Company | Holding Value | Last Transaction | Amount | Transaction Price | Current Price |
|---|---|---|---|---|---|
| $12M829k shares | Grant / ExerciseJun 1, 2026 | $227.4K15.9k shares | $14.31 | -- | |
| --40.4k shares | Grant / ExerciseJun 1, 2026 | Disclosure amount unavailable40.4k shares | -- | -- | |
| $12M817.8k shares | Grant / ExerciseJun 1, 2026 | $160.9K11.2k shares | $14.31 | -- | |
| $12M844.9k shares | Grant / ExerciseJun 1, 2026 | $128.2K9k shares | $14.31 | -- |
Insider Trades History
| Company | Holding Value | Last Transaction | Amount | Transaction Price | Current Price |
|---|---|---|---|---|---|
| --853.9k shares | Grant / ExerciseMay 19, 2026 | Disclosure amount unavailable34.6k shares | -- | -- | |
| $12M819.3k shares | SellApr 9, 2026 | $225.7K15k shares | $15.05 | -- | |
| $12M834.3k shares | SellApr 1, 2026 | $507.9K35k shares | $14.51 | -- | |
| $13M869.3k shares | SellMar 25, 2026 | $225.4K15k shares | $15.03 | -- | |
| $13M919.3k shares | SellMar 4, 2026 | $1.0M73.6k shares | $14.10 | -- | |
| $12M884.3k shares | SellMar 4, 2026 | $490.6K35k shares | $14.02 | -- | |
| $073.6k shares | Grant / ExerciseMar 4, 2026 | $317.9K73.6k shares | $4.32 | -- | |
| --40.4k shares | Grant / ExerciseJun 1, 2025 | Disclosure amount unavailable40.4k shares | -- | -- | |
| --80.8k shares | Grant / ExerciseJun 1, 2025 | Disclosure amount unavailable43.8k shares | -- | -- | |
| $7.3M903.8k shares | Grant / ExerciseJun 1, 2025 | $139.4K17.2k shares | $8.09 | -- | |
| $7.2M887.9k shares | Grant / ExerciseJun 1, 2025 | $128.5K15.9k shares | $8.09 | -- | |
| $7.1M878.9k shares | Grant / ExerciseJun 1, 2025 | $72.5K9k shares | $8.09 | -- | |
| --877.2k shares | Grant / ExerciseMay 14, 2025 | Disclosure amount unavailable85.7k shares | -- | -- |