SEC Form 3 · accession 0002152870-26-000008
NPK International Inc. · NPKI
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Matthew James Warren
Officer — Chief Accounting Officer
Period of report
Aug 31, 2026
Accepted (ET)
Sep 8, 2026 · 6:49 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0000071829
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | holding | — | — | — | 54,430 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Includes shares held outright and 21,066 time-based restricted stock units that settle for shares on a one-for-one basis following vesting.