M
$ Value
$0
Shares
43,790
Price
$0
Filed
Jun 3
Insider
Name
Piontek Gregg
Title
Senior Vice President and CFO
CIK
0001418328
Roles
Officer
Transaction Details
Transaction Date
2025-06-01
Code
M
Table
Derivative
Ownership
Direct
Equity Swap
No
Shares After
80,758
Footnotes
Restricted stock units convert into common stock on a one-for-one basis. | Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units. | These shares are indirectly held by Trust. | Grant of restricted stock units that vest in one-third increments on June 1 of each subsequent year after grant and settle in shares.
Filing Info
Piontek Gregg's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-04-09 | NPKI | ▼ | $226K |
| 2026-04-01 | NPKI | ▼ | $508K |
| 2026-03-25 | NPKI | ▼ | $225K |
| 2025-06-01 | NPKI | M | $0 |
| 2025-06-01 | NPKI | F | $139K |
| 2025-06-01 | NPKI | F | $129K |
| 2025-06-01 | NPKI | F | $72K |
| 2025-06-01 | NPKI | M | $0 |
| 2025-06-01 | NPKI | M | $0 |
| 2025-06-01 | NPKI | M | $0 |
Other Insiders at NPKI (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
|
Piontek Gregg
Senior Vice President and CFO
|
— | $959K | 2026-04-09 |
| Lewis Michael A | — | $29K | 2026-02-23 |