Insiders / Piontek Gregg
Piontek Gregg
CIK 1418328personinsider
Companies
1
First seen
Mar 5, 2026
Last activity
Mar 26, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| NPK International Inc. · NPKI | 869,326 | — |
All securities held
1 position · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| NPK International Inc. | Common Stock | 869,326 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Mar 4, 2026 | Sell | NPKI NPK International Inc. Common Stock | $1.04M | -74K -7.41% | 919,326 1.08% of shares | medium |
| Mar 4, 2026 | Sell | NPKI NPK International Inc. Common Stock | $490.6K | -35K -3.81% | 884,326 1.04% of shares | medium |
| Mar 4, 2026 | Exercise | NPKI NPK International Inc. Common Stock | $317.9K | +74K +8.00% | 992,916 1.17% of shares | low |
| Mar 25, 2026 | Sell | NPKI NPK International Inc. Common Stock | $225.4K | -15K -1.70% | 869,326 1.02% of shares | medium |
| Mar 4, 2026 | Exercise | NPKI NPK International Inc. Non-Qualified Stock Option (right to buy) | — | -74K -100.00% | 0 0.00% of shares | low |