NPKI
NPK International Inc.$14.99+0.34 (+2.32%)Prev Close$14.65·MCap$1.23B·P/E35.15·Vol500.1K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
19
$6.45M
◆
Net Activity
Net Seller
$6.45M
●
Active Insiders
5
last 12 mo
Over the past 12 months, insider activity at NPK International Inc. (NPKI) has been exclusively selling, with 0 insider purchases totaling $0.00 and 19 insider sales totaling $6.45M. The most recent insider transaction was by Briggs Lori (officer: VP & President, Ind. Solutions), who sold $122.8K worth of shares on Jun 9, 2026. NPK International Inc. operates in the Energy sector, within the Oil & Gas Equipment & Services industry, with a market cap of $1.23B.
NPKI Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jun 9, 2026 | Briggs Lori | officer: VP & President, Ind. Solutions | Sell | 8,325 | $14.75 | $122.8K | 247,165 |
| Jun 5, 2026 | LANIGAN MATTHEW | director, officer: President & CEO | Sell | 167,375 | $14.43 | $2.42M | 254,699-40% |
| Jun 3, 2026 | Briggs Lori | officer: VP & President, Ind. Solutions | Sell | 10,446 | $14.58 | $152.3K | 255,490 |
| May 19, 2026 | Lewis Michael A | director | Sell | 2,013 | $15.30 | $30.8K | 129,320 |
| Apr 10, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 15,000 | $15.05 | $225.7K | 819,326 |
| Apr 3, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 35,000 | $14.51 | $507.9K | 834,326 |
| Mar 26, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 15,000 | $15.03 | $225.4K | 869,326 |
| Mar 18, 2026 | Fruge Mary Celeste | officer: VP, General Counsel | Sell | 1,000 | $13.56 | $13.6K | 265,213 |
| Mar 10, 2026 | Fruge Mary Celeste | officer: VP, General Counsel | Sell | 11,193 | $13.34 | $149.3K | 265,213 |
| Mar 5, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 108,590 | $14.07 | $1.53M | 919,326 |
| Feb 25, 2026 | Lewis Michael A | director | Sell | 2,013 | $14.31 | $28.8K | 131,333 |
| Nov 24, 2025 | Lewis Michael A | Director | Sell | 2,013 | $12.00 | $24.2K | 0 |
| Oct 1, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 10,108 | $11.51 | $116.4K | 0 |
| Sep 3, 2025 | LANIGAN MATTHEW | President & CEO | Sell | 1,000 | $10.38 | $10.4K | 0 |
| Aug 25, 2025 | Lewis Michael A | Director | Sell | 2,013 | $10.33 | $20.8K | 0 |
| Aug 22, 2025 | LANIGAN MATTHEW | President & CEO | Sell | 68,896 | $10.34 | $712.5K | 0 |
| Aug 11, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 8,005 | $9.51 | $76.1K | 0 |
| Jul 9, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 8,005 | $8.57 | $68.6K | 0 |
| Jun 16, 2025 | Lewis Michael A | Director | Sell | 2,013 | $8.60 | $17.3K | 0 |
| Jun 6, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 9,704 | $8.38 | $81.3K | 0 |
| Jun 1, 2025 | Piontek Gregg | Senior Vice President and CFO | Sell | 42,079 | $8.09 | $340.4K | 0 |
| Jun 1, 2025 | Fruge Mary Celeste | VP, General Counsel | Sell | 10,630 | $8.09 | $86.0K | 0 |
| Jun 1, 2025 | LANIGAN MATTHEW | President & CEO | Sell | 104,409 | $8.09 | $844.7K | 0 |
| Jun 1, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 25,364 | $8.09 | $205.2K | 0 |
| Jun 1, 2025 | WHITE DOUGLAS L | VP, CAO & Treasurer | Sell | 15,713 | $8.09 | $127.1K | 0 |
| May 19, 2025 | Meer Claudia Michel | Director | Buy | 4,000 | $7.92 | $31.7K | 0 |
| May 8, 2025 | CUTILLO JOSEPH A | Director | Buy | 12,500 | $8.00 | $100.0K | 0 |
| Mar 5, 2025 | MINGE JOHN C | Director | Buy | 10,000 | $5.38 | $53.8K | 0 |
| Aug 22, 2023 | Meer Claudia Michel | Director | Buy | 1,300 | $5.57 | $7.2K | 82,930 |
| Aug 17, 2023 | Meer Claudia Michel | Director | Buy | 8,000 | $5.27 | $42.2K | 81,630 |
| Mar 17, 2023 | MINGE JOHN C | Director | Buy | 10,000 | $4.03 | $40.3K | 172,045 |
| Dec 12, 2022 | Lewis Michael A | Director | Buy | 5,251 | $3.98 | $20.9K | 76,046 |
| Nov 21, 2022 | MINGE JOHN C | Director | Buy | 5,000 | $3.64 | $18.2K | 162,045 |
| Nov 21, 2022 | Young Donald Win | Director | Buy | 30,000 | $3.94 | $118.3K | 247,601 |
| Nov 18, 2022 | Meer Claudia Michel | Director | Buy | 5,000 | $3.96 | $19.8K | 41,496 |
| Nov 14, 2022 | MINGE JOHN C | Director | Buy | 5,000 | $3.95 | $19.7K | 157,045 |
| Aug 19, 2022 | Young Donald Win | Director | Buy | 3,800 | $2.91 | $11.0K | 217,601 |
| Aug 17, 2022 | Young Donald Win | Director | Buy | 89,603 | $2.67 | $239.5K | 213,801+72% |
| Aug 17, 2022 | MINGE JOHN C | Director | Buy | 15,000 | $2.66 | $39.9K | 152,045 |
| Aug 9, 2022 | LANIGAN MATTHEW | President & CEO | Buy | 19,000 | $2.55 | $48.4K | 277,152 |
| Aug 9, 2022 | Piontek Gregg | Senior Vice President and CFO | Buy | 10,000 | $2.55 | $25.5K | 65,000 |
| Aug 9, 2022 | Earle Edward Chipman | VP, General Counsel, CAO | Buy | 10,000 | $2.56 | $25.6K | 228,265 |
| May 16, 2022 | Young Donald Win | Director | Buy | 19,252 | $3.54 | $68.2K | 87,702+28% |
| May 10, 2022 | Young Donald Win | Director | Buy | 68,450 | $3.55 | $243.1K | 68,450 |
| Aug 27, 2021 | Howes Paul L | President & CEO | Buy | 30,000 | $2.29 | $68.7K | 1,236,325 |
NPKI Insider Buying Activity
The following table shows recent insider purchases of NPK International Inc. (NPKI) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| May 19, 2025 | Meer Claudia Michel | Director | Buy | 4,000 | $7.92 | $31.7K | 0 |
| May 8, 2025 | CUTILLO JOSEPH A | Director | Buy | 12,500 | $8.00 | $100.0K | 0 |
| Mar 5, 2025 | MINGE JOHN C | Director | Buy | 10,000 | $5.38 | $53.8K | 0 |
| Aug 22, 2023 | Meer Claudia Michel | Director | Buy | 1,300 | $5.57 | $7.2K | 82,930 |
| Aug 17, 2023 | Meer Claudia Michel | Director | Buy | 8,000 | $5.27 | $42.2K | 81,630 |
| Mar 17, 2023 | MINGE JOHN C | Director | Buy | 10,000 | $4.03 | $40.3K | 172,045 |
| Dec 12, 2022 | Lewis Michael A | Director | Buy | 5,251 | $3.98 | $20.9K | 76,046 |
| Nov 21, 2022 | MINGE JOHN C | Director | Buy | 5,000 | $3.64 | $18.2K | 162,045 |
| Nov 21, 2022 | Young Donald Win | Director | Buy | 30,000 | $3.94 | $118.3K | 247,601 |
| Nov 18, 2022 | Meer Claudia Michel | Director | Buy | 5,000 | $3.96 | $19.8K | 41,496 |
| Nov 14, 2022 | MINGE JOHN C | Director | Buy | 5,000 | $3.95 | $19.7K | 157,045 |
| Aug 19, 2022 | Young Donald Win | Director | Buy | 3,800 | $2.91 | $11.0K | 217,601 |
| Aug 17, 2022 | Young Donald Win | Director | Buy | 89,603 | $2.67 | $239.5K | 213,801+72% |
| Aug 17, 2022 | MINGE JOHN C | Director | Buy | 15,000 | $2.66 | $39.9K | 152,045 |
| Aug 9, 2022 | LANIGAN MATTHEW | President & CEO | Buy | 19,000 | $2.55 | $48.4K | 277,152 |
| Aug 9, 2022 | Piontek Gregg | Senior Vice President and CFO | Buy | 10,000 | $2.55 | $25.5K | 65,000 |
| Aug 9, 2022 | Earle Edward Chipman | VP, General Counsel, CAO | Buy | 10,000 | $2.56 | $25.6K | 228,265 |
| May 16, 2022 | Young Donald Win | Director | Buy | 19,252 | $3.54 | $68.2K | 87,702+28% |
| May 10, 2022 | Young Donald Win | Director | Buy | 68,450 | $3.55 | $243.1K | 68,450 |
| Aug 27, 2021 | Howes Paul L | President & CEO | Buy | 30,000 | $2.29 | $68.7K | 1,236,325 |
NPKI Insider Selling Activity
The following table shows recent insider sales of NPK International Inc. (NPKI) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jun 9, 2026 | Briggs Lori | officer: VP & President, Ind. Solutions | Sell | 8,325 | $14.75 | $122.8K | 247,165 |
| Jun 5, 2026 | LANIGAN MATTHEW | director, officer: President & CEO | Sell | 167,375 | $14.43 | $2.42M | 254,699-40% |
| Jun 3, 2026 | Briggs Lori | officer: VP & President, Ind. Solutions | Sell | 10,446 | $14.58 | $152.3K | 255,490 |
| May 19, 2026 | Lewis Michael A | director | Sell | 2,013 | $15.30 | $30.8K | 129,320 |
| Apr 10, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 15,000 | $15.05 | $225.7K | 819,326 |
| Apr 3, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 35,000 | $14.51 | $507.9K | 834,326 |
| Mar 26, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 15,000 | $15.03 | $225.4K | 869,326 |
| Mar 18, 2026 | Fruge Mary Celeste | officer: VP, General Counsel | Sell | 1,000 | $13.56 | $13.6K | 265,213 |
| Mar 10, 2026 | Fruge Mary Celeste | officer: VP, General Counsel | Sell | 11,193 | $13.34 | $149.3K | 265,213 |
| Mar 5, 2026 | Piontek Gregg | officer: Senior Vice President and CFO | Sell | 108,590 | $14.07 | $1.53M | 919,326 |
| Feb 25, 2026 | Lewis Michael A | director | Sell | 2,013 | $14.31 | $28.8K | 131,333 |
| Nov 24, 2025 | Lewis Michael A | Director | Sell | 2,013 | $12.00 | $24.2K | 0 |
| Oct 1, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 10,108 | $11.51 | $116.4K | 0 |
| Sep 3, 2025 | LANIGAN MATTHEW | President & CEO | Sell | 1,000 | $10.38 | $10.4K | 0 |
| Aug 25, 2025 | Lewis Michael A | Director | Sell | 2,013 | $10.33 | $20.8K | 0 |
| Aug 22, 2025 | LANIGAN MATTHEW | President & CEO | Sell | 68,896 | $10.34 | $712.5K | 0 |
| Aug 11, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 8,005 | $9.51 | $76.1K | 0 |
| Jul 9, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 8,005 | $8.57 | $68.6K | 0 |
| Jun 16, 2025 | Lewis Michael A | Director | Sell | 2,013 | $8.60 | $17.3K | 0 |
| Jun 6, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 9,704 | $8.38 | $81.3K | 0 |
| Jun 1, 2025 | Piontek Gregg | Senior Vice President and CFO | Sell | 42,079 | $8.09 | $340.4K | 0 |
| Jun 1, 2025 | Fruge Mary Celeste | VP, General Counsel | Sell | 10,630 | $8.09 | $86.0K | 0 |
| Jun 1, 2025 | LANIGAN MATTHEW | President & CEO | Sell | 104,409 | $8.09 | $844.7K | 0 |
| Jun 1, 2025 | Briggs Lori | VP & President, Ind. Solutions | Sell | 25,364 | $8.09 | $205.2K | 0 |
| Jun 1, 2025 | WHITE DOUGLAS L | VP, CAO & Treasurer | Sell | 15,713 | $8.09 | $127.1K | 0 |
NPKI Insiders
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