| Insider Trading |
Relationship |
Date |
Transaction |
Cost |
#Shares |
Value ($) |
#Shares Total |
SEC Form 4 |
| Warren Matthew James | Chief Accounting Officer | Sep 09 '26 | Sale | 13.41 | 2,991 | 40,113 | 51,439 | Sep 10 06:22 PM | | MATTHEW WARREN | Officer | Sep 09 '26 | Proposed Sale | 13.50 | 2,991 | 40,378 | | Sep 09 04:56 PM | | ROBESON ROSE M | Director | Aug 27 '26 | Sale | 13.49 | 10,000 | 134,917 | 215,147 | Aug 31 04:28 PM | | ROBESON ROSE M | Director | Aug 27 '26 | Proposed Sale | 13.49 | 10,000 | 134,917 | | Aug 27 04:06 PM | | Lewis Michael A | Director | Aug 17 '26 | Sale | 14.26 | 2,013 | 28,705 | 135,865 | Aug 19 04:14 PM | | MICHAEL LEWIS | Director | Aug 17 '26 | Proposed Sale | 14.22 | 4,026 | 57,250 | | Aug 17 04:47 PM | | Briggs Lori | VP & President, Ind. Solutions | Jun 08 '26 | Sale | 14.75 | 8,325 | 122,790 | 247,165 | Jun 09 04:20 PM | | LORI BRIGGS | Officer | Jun 08 '26 | Proposed Sale | 14.28 | 8,325 | 118,881 | | Jun 08 04:37 PM | | LANIGAN MATTHEW | President & CEO | Jun 03 '26 | Sale | 14.43 | 167,375 | 2,415,907 | 254,699 | Jun 05 04:22 PM | | Fruge Mary Celeste | VP, General Counsel | Jun 01 '26 | Option Exercise | 0.00 | 17,274 | 0 | 284,641 | Jun 03 06:56 PM | | LANIGAN MATTHEW | President & CEO | Jun 01 '26 | Option Exercise | 0.00 | 100,188 | 0 | 422,074 | Jun 03 06:55 PM | | Piontek Gregg | Senior Vice President and CFO | Jun 01 '26 | Option Exercise | 0.00 | 40,379 | 0 | 858,182 | Jun 03 06:53 PM | | Briggs Lori | VP & President, Ind. Solutions | Jun 01 '26 | Option Exercise | 0.00 | 24,340 | 0 | 265,936 | Jun 03 06:51 PM | | Briggs Lori | VP & President, Ind. Solutions | Jun 02 '26 | Sale | 14.58 | 10,446 | 152,278 | 255,490 | Jun 03 06:51 PM | | MATTHEW LANIGAN | Director | Jun 03 '26 | Proposed Sale | 14.59 | 167,375 | 2,442,001 | | Jun 03 04:27 PM | | LORI BRIGGS | Officer | Jun 02 '26 | Proposed Sale | 14.31 | 10,446 | 149,482 | | Jun 02 04:32 PM | | Lewis Michael A | Director | May 15 '26 | Sale | 15.30 | 2,013 | 30,802 | 129,320 | May 19 06:11 PM | | MICHAEL LEWIS | Director | May 15 '26 | Proposed Sale | 15.71 | 2,013 | 31,624 | | May 15 04:24 PM | | Piontek Gregg | Senior Vice President and CFO | Apr 09 '26 | Sale | 15.04 | 15,000 | 225,675 | 819,326 | Apr 10 05:51 PM | | Piontek Gregg | Senior Vice President and CFO | Apr 01 '26 | Sale | 14.51 | 35,000 | 507,864 | 834,326 | Apr 03 01:00 PM | | Piontek Gregg | Senior Vice President and CFO | Mar 25 '26 | Sale | 15.03 | 15,000 | 225,384 | 869,326 | Mar 26 04:29 PM | | Fruge Mary Celeste | VP, General Counsel | Mar 16 '26 | Option Exercise | 4.32 | 1,000 | 4,320 | 266,213 | Mar 18 04:35 PM | | Fruge Mary Celeste | VP, General Counsel | Mar 16 '26 | Sale | 13.56 | 1,000 | 13,560 | 265,213 | Mar 18 04:35 PM | | Fruge Mary Celeste | VP, General Counsel | Mar 06 '26 | Option Exercise | 4.32 | 11,193 | 48,354 | 276,406 | Mar 10 04:29 PM | | Fruge Mary Celeste | VP, General Counsel | Mar 06 '26 | Sale | 13.34 | 11,193 | 149,303 | 265,213 | Mar 10 04:29 PM | | MARY C FRUGE | Officer | Mar 06 '26 | Proposed Sale | 13.82 | 12,193 | 168,507 | | Mar 06 04:30 PM | | Piontek Gregg | Senior Vice President and CFO | Mar 04 '26 | Option Exercise | 4.32 | 73,590 | 317,909 | 992,916 | Mar 05 05:50 PM | | Piontek Gregg | Senior Vice President and CFO | Mar 04 '26 | Sale | 14.07 | 108,590 | 1,528,056 | 884,326 | Mar 05 05:50 PM | | GREGG PIONTEK | Officer | Mar 04 '26 | Proposed Sale | 13.69 | 173,590 | 2,376,447 | | Mar 04 04:32 PM | | Lewis Michael A | Director | Feb 23 '26 | Sale | 14.31 | 2,013 | 28,796 | 131,333 | Feb 25 05:00 PM | | Lewis Michael A | Director | Nov 24 '25 | Sale | 12.00 | 2,013 | 24,156 | 133,346 | Nov 25 05:25 PM | | MICHAEL LEWIS | Director | Nov 24 '25 | Proposed Sale | 11.52 | 4,026 | 46,380 | | Nov 24 04:21 PM |
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NPK International, Inc. is a temporary worksite access solutions company that manufactures, sells, and rents recyclable composite matting products, along with a full suite of services, including planning, logistics, and site restoration. It delivers superior quality and reliability across critical infrastructure markets, including electrical transmission and distribution, oil and gas exploration, pipeline, renewable energy, petrochemical, construction, and other industries. The company was founded in 1932 and is headquartered in The Woodlands, TX. |  |
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| PresidentMr. Matthew S. Lanigan Senior VP & CFOMr. Gregg S. Piontek CPA VPMs. M. Celeste Fruge Executive Vice President of Commercial Growth & OperationsMr. James Barton Chief Accounting OfficerMr. Matthew Warren |
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