| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NPK | Common stock $1.00 par value | Tax liability | $26,857 | -378 | -17% | $71.05 | 1,804 | 20 Jan 2023 | Direct | |
| holding | NPK | Common stock $1.00 par value | 525 | 20 Jan 2023 | 401(k) plan |