// company-profile
NPK International Inc.
NPKI// activity-summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $2.3M across 12 transactions, with 8 offsetting purchases.
// 90-day insight
Over the last 90 days, NPK International Inc. insiders bought $0 (18 transactions) and sold $2.3M (12 transactions).
- Most active insider: Piontek Gregg with 8 transactions totaling $1.2M.
- Largest single sale: $2.4M by LANIGAN MATTHEW on Jun 3, 2026.
- 33% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of NPK International Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 8, 2026 | Briggs Lori | NPKI | Sale10b5 | 8,325 | $14.75 | $123K |
| Jun 3, 2026 | LANIGAN MATTHEW | NPKI | Sale10b5 | 167,375 | $14.43 | $2.42M |
| Jun 2, 2026 | Briggs Lori | NPKI | Sale10b5 | 10,446 | $14.58 | $152K |
| Jun 1, 2026 | Briggs Lori | NPKI | Tax Withholding | 5,401 | $14.31 | $77K |
| Jun 1, 2026 | Fruge Mary Celeste | NPKI | Option Exercise | 17,274 | $0.00 | $0K |
45 more transactions hidden
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