Piontek Gregg
- SEC CIK
- 0001418328
In the past year, 4 open-market sale filings worth $2.49M and no purchases.
Current role at each company
- NPKI NPK International Inc.Senior Vice President and CFOas of Jun 3, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $2.49M
- 4 filings
- Net
- −$2.49M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Piontek Gregg as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Apr 10, 2026 (view filing) | Apr 9 | 1 day | Piontek GreggSenior Vice President and CFO | SSale | −15.0K | $15.05 | −$225.8K | −1.8%819.3K after | 10b5-1 |
| Apr 3, 2026 (view filing) | Apr 1 | 2 days | Piontek GreggSenior Vice President and CFO | SSale | −35.0K | $14.51 | −$507.9K | −4.0%834.3K after | 10b5-1 |
| Mar 26, 2026 (view filing) | Mar 25 | 1 day | Piontek GreggSenior Vice President and CFO | SSale | −15.0K | $15.03 | −$225.4K | −1.7%869.3K after | 10b5-1 |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | Piontek GreggSenior Vice President and CFO | SSale | −108.6K | $14.07 | −$1.53M | −10.9%884.3K after | 2 lots10b5-1 |
| Aug 9, 2022 (view filing) | Aug 5 | 4 days | Piontek GreggSenior Vice President and CFO | PPurchase | +10.0K | $2.55 | +$25.5K | +18.2%65.0K after |