Matthew Lanigan sold $10k of NPKI
President & CEO at NPK International Inc.. 1,000 shares at an average of $10.38, traded Sep 3, 2025, filed Sep 4, 2025.
Score components
- +25RoleCEO
- 0Trade size$10k at market
- 0Share of holdings soldSold 0.1% of holdings
- +8Cluster2 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0000071829-25-000129, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 3, 2025 | MOption exercise Common Stock10b5-1 | +1,000 | $4.32 | $4,320 | 1,096,913 | Sep 4, 2025 |
| Sep 3, 2025 | SOpen-market sale Common Stock10b5-1 | -1,000 | $10.38 | $10k | 1,095,913 | Sep 4, 2025 |
| Sep 3, 2025 | MOption exercise Non-Qualified Stock Option (right to buy)derivative10b5-1 | -1,000 | $10.38 | $10k | 0 | Sep 4, 2025 |
Related signals
Other insiders at NPK International Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 1Weak | NPK International Inc. | Matthew James Warren Chief Accounting Officer | $40k 2,991 shares | -5% | |
| 0Weak | NPK International Inc. | Mary Celeste Fruge VP, General Counsel | $14k 1,000 shares | -0% | |
| 0Weak | NPK International Inc. | Mary Celeste Fruge VP, General Counsel | $149k 11,193 shares | -4% | |
| 0Weak | NPK International Inc. | Michael A Lewis director | $24k 2,013 shares | -1% | |
| 5Weak | NPK International Inc. | Lori Briggs VP & President, Ind. Solutions | $116k 10,108 shares | -4% | |
| 26Weak | NPK International Inc. | Matthew Lanigan President & CEO | $713k 68,896 shares | -6% | |
| 10Weak | NPK International Inc. | Michael A Lewis director | $21k 2,013 shares | -1% | |
| 18Weak | NPK International Inc. | Lori Briggs VP & President, Ind. Solutions | $76k 8,005 shares | -3% | |
| 3Weak | NPK International Inc. | Lori Briggs VP & President, Ind. Solutions | $69k 8,005 shares | -3% | |
| 3Weak | NPK International Inc. | Michael A Lewis director | $17k 2,013 shares | -1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.