| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NPK | Common stock $1.00 par value | Sale | $3,276 | -43 | -4.1% | $76.18 | 1,010 | 17 Aug 2023 | Direct | |
| transaction | NPK | Common stock $1.00 par value | Sale | $11,427 | -150 | -19% | $76.18 | 633 | 17 Aug 2023 | 401(k) plan |