PAGEInsider
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| NPKI | Piontek Gregg | Senior Vice President and CFO | Jun 01 '26 | Option Exercise | 0.00 | 40,379 | 0 | 858,182 | Jun 03 |
| NPKI | Piontek Gregg | Senior Vice President and CFO | Apr 09 '26 | Sale | 15.04 | 15,000 | 225,675 | 819,326 | Apr 10 |
| NPKI | Piontek Gregg | Senior Vice President and CFO | Apr 01 '26 | Sale | 14.51 | 35,000 | 507,864 | 834,326 | Apr 03 |
| NPKI | Piontek Gregg | Senior Vice President and CFO | Mar 25 '26 | Sale | 15.03 | 15,000 | 225,384 | 869,326 | Mar 26 |
| NPKI | Piontek Gregg | Senior Vice President and CFO | Mar 04 '26 | Option Exercise | 4.32 | 73,590 | 317,909 | 992,916 | Mar 05 |
| NPKI | Piontek Gregg | Senior Vice President and CFO | Mar 04 '26 | Sale | 14.07 | 108,590 | 1,528,056 | 884,326 | Mar 05 |
| NPKI | Piontek Gregg | Senior Vice President and CFO | Jun 01 '25 | Option Exercise | 0.00 | 84,169 | 0 | 921,026 | Jun 03 |