Company profile
NPK International Inc. Insider Trading
NPKIEvery SEC Form 4 insider trading filing for NPK International Inc. (NPKI) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- NYSE
- Sector
- Services-Miscellaneous Equipment Rental & Leasing
- CIK
- 0000071829
- Filings
- 119
- Insiders
- 15
- Last filing
- 2026-09-09
Activity summary
No discretionary insider buying or selling in the last 30 days. The 2 transactions filed were made under a 10b5-1 plan, scheduled in advance rather than decided on the day.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. NPK International Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $5.8M.
90 day insight
Over the last 90 days, NPK International Inc. insiders bought $0 across 1 transaction with no open-market sales.
- Most active insider: Rose M Robeson with 1 transaction totaling $135K.
- Largest single sale: $135K by Rose M Robeson on Aug 27, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades, typically less informative than open-market activity.
Activity skews bullish: buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 9, 2026 | Matthew James Warren | NPKI | Sale10b5 | 2,991 | $13.41 | $40K |
| Aug 27, 2026 | Rose M Robeson | NPKI | Sale10b5 | 10,000 | $13.49 | $135K |
| Aug 17, 2026 | Michael A Lewis | NPKI | Sale10b5 | 2,013 | $14.26 | $29K |
| Jul 28, 2026 | Kristen J. Pederson | NPKI | Award | 6,614 | — | — |
| Jun 8, 2026 | Lori Briggs | NPKI | Sale10b5 | 8,325 | $14.75 | $123K |
45 more transactions hidden
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The same rows, over the API.
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of NPK International Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →