🕵️ NPK International Inc. ($NPKI)
SEC insider & ownership activity, last 12 months · CIK 71829 · every row links its SEC filing
Over the last 12 months insiders sold $5.7M with no open-market buying against it. Piontek Gregg sold $2.5M through a 10b5-1 trading plan in 5 lots (Mar–Apr). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 7 sellers, $5.7M (17 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Piontek Gregg | 0 | – | 5 | $2.5M | Apr 9, 2026 |
| Lanigan Matthew | 0 | – | 1 | $2.4M | Jun 3, 2026 |
| Lori Briggs | 0 | – | 3 | $391K | Jun 8, 2026 |
| Fruge Mary Celeste | 0 | – | 2 | $163K | Mar 16, 2026 |
| Rose M. Robeson | 0 | – | 1 | $135K | Aug 27, 2026 |
| Michael Lewis | 0 | – | 4 | $112K | Aug 17, 2026 |
| Warren Matthew James | 0 | – | 1 | $40K | Sep 9, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.4% | 13G | Jul 29, 2026 | filing ↗ | |
| Ameriprise Financial, Inc. | 6.2% | 13G | Nov 14, 2025 | filing ↗ | |
| TAM UK International Holdings Limited | 5.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Threadneedle Holdings Limited | 5.8% | 13G | Nov 14, 2025 | filing ↗ | |
| TAM UK Holdings Limited | 5.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Threadneedle Asset Management Holdings Limited | 5.8% | 13G | Nov 14, 2025 | filing ↗ | |
| TC Financing Ltd | 5.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Threadneedle Asset Management Limited | 5.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Threadneedle Investment Services Limited | 5.8% | 13G | Nov 14, 2025 | filing ↗ | |
| Vanguard Capital Management | 5.0% | 13G | Jul 31, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Matthew Warren | $40K | Sep 9, 2026 | filing ↗ |
| Rose M. Robeson | $135K | Aug 27, 2026 | filing ↗ |
| Michael Lewis | $57K | Aug 17, 2026 | filing ↗ |
| Lori Briggs | $119K | Jun 8, 2026 | filing ↗ |
| Matthew Lanigan | $2.4M | Jun 3, 2026 | filing ↗ |
| Lori Briggs | $149K | Jun 2, 2026 | filing ↗ |
| Michael Lewis | $32K | May 15, 2026 | filing ↗ |
| Mary C. Fruge | $169K | Mar 6, 2026 | filing ↗ |
| Gregg Piontek | $2.4M | Mar 4, 2026 | filing ↗ |
| Michael Lewis | $46K | Nov 24, 2025 | filing ↗ |
| Lori Briggs | $114K | Oct 1, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Sep 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 11, 2026 | filing ↗ |
| Officer/director changes (5.02) | Aug 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 28, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 30, 2026 | filing ↗ |
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jul 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 28, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 20, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 1, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Earnings (2.02) | Feb 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 25, 2026 | filing ↗ |
| Material agreement (1.01) | Nov 24, 2025 | filing ↗ |
| Acquisition or disposition (2.01) | Nov 24, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 24, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 31, 2025 | filing ↗ |
| Earnings (2.02) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |