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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker NPKI
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Nov 2, 2026 | John C. Minge Director | NPKI NPK International Inc. | Buy | 15,000 | $9.24 | $138.6K Buy | Form 4 ↗ |
| Sep 9, 2026 | Matthew James Warren Chief Accounting Officer | NPKI NPK International Inc. | Sale | 2,991 | $13.41 | $40.1K Sale | Form 4 ↗ |
| Aug 27, 2026 | Rose M. Robeson Director | NPKI NPK International Inc. | Sale | 10,000 | $13.49 | $134.9K Sale | Form 4 ↗ |
| Aug 17, 2026 | Michael A. Lewis Director | NPKI NPK International Inc. | Sale | 2,013 | $14.26 | $28.7K Sale | Form 4 ↗ |
| Jun 8, 2026 | Lori Briggs VP & President, Ind. Solutions | NPKI NPK International Inc. | Sale | 8,325 | $14.75 | $122.8K Sale | Form 4 ↗ |
| Jun 3, 2026 | Matthew Lanigan President & CEO, Director | NPKI NPK International Inc. | Sale | 167,375 | $14.43 | $2.4M Sale | Form 4 ↗ |
| Jun 2, 2026 | Lori Briggs VP & President, Ind. Solutions | NPKI NPK International Inc. | Sale | 10,446 | $14.58 | $152.3K Sale | Form 4 ↗ |
| May 15, 2026 | Michael A. Lewis Director | NPKI NPK International Inc. | Sale | 2,013 | $15.30 | $30.8K Sale | Form 4 ↗ |
| Apr 9, 2026 | Gregg Piontek Senior Vice President and CFO | NPKI NPK International Inc. | Sale | 15,000 | $15.05 | $225.8K Sale | Form 4 ↗ |
| Apr 1, 2026 | Gregg Piontek Senior Vice President and CFO | NPKI NPK International Inc. | Sale | 35,000 | $14.51 | $507.9K Sale | Form 4 ↗ |
| Mar 25, 2026 | Gregg Piontek Senior Vice President and CFO | NPKI NPK International Inc. | Sale | 15,000 | $15.03 | $225.4K Sale | Form 4 ↗ |
| Mar 16, 2026 | Mary Celeste Fruge VP, General Counsel | NPKI NPK International Inc. | Sale | 1,000 | $13.56 | $13.6K Sale | Form 4 ↗ |
| Mar 6, 2026 | Mary Celeste Fruge VP, General Counsel | NPKI NPK International Inc. | Sale | 11,193 | $13.34 | $149.3K Sale | Form 4 ↗ |
| Mar 4, 2026 | Gregg Piontek Senior Vice President and CFO | NPKI NPK International Inc. | Sale | 35,000 | $14.02 | $490.7K Sale | Form 4 ↗ |
| Mar 4, 2026 | Gregg Piontek Senior Vice President and CFO | NPKI NPK International Inc. | Sale | 73,590 | $14.10 | $1.0M Sale | Form 4 ↗ |
| Feb 23, 2026 | Michael A. Lewis Director | NPKI NPK International Inc. | Sale | 2,013 | $14.31 | $28.8K Sale | Form 4 ↗ |
| Nov 24, 2025 | Michael A. Lewis Director | NPKI NPK International Inc. | Sale | 2,013 | $12.00 | $24.2K Sale | Form 4 ↗ |
| Oct 1, 2025 | Lori Briggs VP & President, Ind. Solutions | NPKI NPK International Inc. | Sale | 10,108 | $11.51 | $116.3K Sale | Form 4 ↗ |
| Sep 3, 2025 | Matthew Lanigan President & CEO, Director | NPKI NPK International Inc. | Sale | 1,000 | $10.38 | $10.4K Sale | Form 4 ↗ |
| Aug 25, 2025 | Michael A. Lewis Director | NPKI NPK International Inc. | Sale | 2,013 | $10.33 | $20.8K Sale | Form 4 ↗ |
| Aug 22, 2025 | Matthew Lanigan President & CEO, Director | NPKI NPK International Inc. | Sale | 68,896 | $10.34 | $712.4K Sale | Form 4 ↗ |
| Aug 11, 2025 | Lori Briggs VP & President, Ind. Solutions | NPKI NPK International Inc. | Sale | 8,005 | $9.51 | $76.1K Sale | Form 4 ↗ |
| Jul 9, 2025 | Lori Briggs VP & President, Ind. Solutions | NPKI NPK International Inc. | Sale | 8,005 | $8.57 | $68.6K Sale | Form 4 ↗ |
| Jun 16, 2025 | Michael A. Lewis Director | NPKI NPK International Inc. | Sale | 2,013 | $8.60 | $17.3K Sale | Form 4 ↗ |
| Jun 6, 2025 | Lori Briggs VP & President, Ind. Solutions | NPKI NPK International Inc. | Sale | 9,704 | $8.38 | $81.3K Sale | Form 4 ↗ |
| May 19, 2025 | Claudia Michel Meer Director | NPKI NPK International Inc. | Buy | 4,000 | $7.92 | $31.7K Buy | Form 4 ↗ |
| May 8, 2025 | Joseph A. Cutillo Director | NPKI NPK International Inc. | Buy | 12,500 | $8.00 | $100.0K Buy | Form 4 ↗ |
| Mar 5, 2025 | John C. Minge Director | NPKI NPK International Inc. | Buy | 10,000 | $5.38 | $53.8K Buy | Form 4 ↗ |
28 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 6:11 PM EST.
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