NPK International Inc. (NPKI)
Data as of , from SEC Form 4 filings.
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About NPK International Inc. (NPKI)
NPK International Inc. files with the SEC under CIK 0000071829 and is classified as miscellaneous equipment rental and leasing. We track it alongside the rest of the Industrials sector.
NPKI Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 15,004 | $204K |
| Grant or award | 2 | 19,464 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
NPKI insider transactions (Form 4)
1440 Form 4 filings on record, the earliest from Dec 17, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Michael A. Lewis - Director | Open-market sale | Common Stock | 2,013 footnote F1 | $12.00 footnote F2 | $24K | |
| ||||||
 Matthew Lanigan - Officer | Gift | Common Stock | 770,249 | $0.00 | - | |
| Lori Briggs - Officer | Open-market sale | Common Stock | 10,108 footnote F1 | $11.51 footnote F2 | $116K | |
| ||||||
| Matthew Lanigan - Officer | Option exercise | Common Stock | 1,000 | $4.32 | $4K | |
| Matthew Lanigan - Officer | Open-market sale | Common Stock | 1,000 | $10.38 | $10K | |
| Matthew Lanigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 1,000 | $10.38 | $10K | |
| Michael A. Lewis - Director | Open-market sale | Common Stock | 2,013 | $10.33 | $21K | |
| Matthew Lanigan - Officer | Option exercise | Common Stock | 68,896 | $4.32 | $298K | |
| Matthew Lanigan - Officer | Open-market sale | Common Stock | 68,896 | $10.34 | $713K | |
| Matthew Lanigan - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 68,896 | $10.34 | $713K | |
| Lori Briggs - Officer | Open-market sale | Common Stock | 8,005 | $9.51 | $76K | |
| Lori Briggs - Officer | Open-market sale | Common Stock | 8,005 | $8.57 | $69K | |
| Rose M. Robeson - Director | Grant or award | Common Stock | 18,720 | $0.00 | - | |
| Douglas L. White - Officer | Grant or award | Common Stock | 722 | $6.58 | $5K | |
Recent NPKI Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| MATTHEW WARREN | Officer | 2,991 | $40K | View on EDGAR | |
| ROBESON ROSE M | Director | 10,000 | $135K |
NPKI insider trading FAQ
What is the latest insider trade for NPKI?
NPK International Inc. (NPKI) had 5 insider filings in the last 90 days, with the most recent on 2026-09-24. The full record for NPKI runs to 40 Form 4 filings, the earliest from 2024-12-17. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying NPKI stock?
No insider purchases of NPKI were filed in the last 90 days.
How many insiders are selling NPKI stock?
3 insider sales of NPKI were filed in the last 90 days, totaling $204K.
Where can I see NPKI SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects NPKI Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Industrials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Iii Alvin James Barton view on EDGAR
- - Matthew James Warren view on EDGAR
- - Rose M. Robeson view on EDGAR
- - Michael A. Lewis view on EDGAR
- - Kristen J. Pederson view on EDGAR
- - Lori Briggs view on EDGAR
- - Matthew Lanigan view on EDGAR
- - Mary Celeste Fruge view on EDGAR
- - Matthew Lanigan view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Industrials
- Where NPKI's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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- NPKI on your watchlist
- Every NPKI Form 4 filing on record
- Up to 3 months of NPKI price history
- The daily trading plan of ranked insider buys, on a delay, with the plan archive
