Form 4 for NPKI NPK International Inc.
Accepted 2025-06-03 00:00:00 ET · period of report 2025-06-01 · accession 0000071829-25-000090 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2025-06-03 | 2025-06-01 | NPKI | Piontek Gregg | SVP, CFO | M - OptEx | $0.00 | +84.2K | 921.0K | +10% | $0 |
| DM | 2025-06-03 | 2025-06-01 | NPKI | Piontek Gregg | SVP, CFO | F - Tax | $8.09 | -42.1K | 903.8K | -4% | -$340.4K |
| DM | 2025-06-03 | 2025-06-01 | NPKI | Piontek Gregg | SVP, CFO | M - OptEx | $0.00 | -84.2K | 80.8K | -51% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-06-01 | M | A | 40,379 | $0.00 | 919,326 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 2 | Common | Common Stock | 2025-06-01 | F | D | 8,959 | $8.09 | 878,947 | D | — | — | (F2) Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units. |
| 3 | Common | Common Stock | 2025-06-01 | F | D | 15,889 | $8.09 | 887,906 | D | — | — | (F2) Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units. |
| 4 | Common | Common Stock | 2025-06-01 | M | A | 43,790 | $0.00 | 921,026 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 5 | Common | Common Stock | 2025-06-01 | F | D | 17,231 | $8.09 | 903,795 | D | — | — | (F2) Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units. |
| 6 | Derivative | Restricted Stock Units | 2025-06-01 | M | D | 40,379 | $0.00 | 40,379 | D | $0.00 · — to — | 40,379 Common Stock | (F1) Restricted stock units convert into common stock on a one-for-one basis. (F4) Grant of restricted stock units that vest in one-third increments on June 1 of each subsequent year after grant and settle in shares. |
| 7 | Derivative | Restricted Stock Units | 2025-06-01 | M | D | 43,790 | $0.00 | 80,758 | D | $0.00 · — to — | 43,790 Common Stock | (F1) Restricted stock units convert into common stock on a one-for-one basis. (F4) Grant of restricted stock units that vest in one-third increments on June 1 of each subsequent year after grant and settle in shares. |