Npk International (NPKI)CEO sold ~$713K

~$713K

Approx. value · 69K sh @ $10.34

1.1M

Holds after · shares reported

Traded

Aug 22, 2025

Filed

Aug 26, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jul 9, 2025InsiderOfficer sold ~$69K of NPKI shares in the open market
2. Aug 11, 2025InsiderOfficer sold ~$76K of NPKI shares in the open market
3. Aug 22, 2025 · this disclosureInsiderCEO sold ~$713K of NPKI shares in the open market

What came next

1. Aug 25, 2025InsiderDirector sold ~$21K of NPKI shares in the open market
2. Sep 3, 2025InsiderCEO sold ~$10K of NPKI shares in the open market
3. Oct 30, 2025Company filing · Form 8-K · ResultsReported its results
4. Nov 10, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“On November 10, 2025, NPK International Inc. (the “Company”) announced that Gregg S. Piontek, age 55, the Company’s Senior Vice President and Chief Financial Officer will be assuming the role of the Company’s principal accounting officer effective immediately.”
5. Nov 24, 2025Company filing · Form 8-K · Material agreement, Acquisition or saleCompleted buying or selling a business or assets, and signed an important agreement (and 1 more item)“On November 24, 2025, the Company issued a press release announcing that it has entered into the Share Purchase Agreement and completed the acquisition of Grassform.”

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Npk International

For Npk International, OQRO holds 1 fund holdings report (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its NPKI page.

Other recent filings by Matthew Lanigan, President & CEO

• SEC Form 4 at Npk International (NPKI)Sep 4, 2025

The full history of Matthew Lanigan, President & CEO is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Npk International

• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRJul 10, 2026
• SEC Form 13F-HRMay 12, 2026
• SEC Form 13F-HRApr 21, 2026
• SEC Form 13F-HRFeb 9, 2026
• SEC Form 13F-HRNov 12, 2025

Everything OQRO holds on this company is on its NPKI page.