Npk International Inc.
Could not find a ticker for this position, may be a filing error
A provider of temporary worksite access, NPK International rents and sells its recyclable DURA-BASE composite mats—sturdy plastic roadways and platforms used by power transmission crews and other outdoor workers where the ground needs protection. The company began in 1932 as the New Park Mining Company, grew into oilfield services as Newpark Resources, and rebranded as NPK International in 2024. Its mats were the first engineered thermoplastic access system on the market, a recyclable alternative to traditional wood timbers.
4% convertible notes due 12/01/2021
Granted 1.49M · Bought 19.0K · Sold 237.3K
Granted 836.2K · Bought 10.0K · Sold 173.6K
Granted 310.9K
Granted 99.8K · Bought 211.1K
Granted 265.5K
Granted 155.0K · Sold 12.2K
Granted 108.4K
Granted 108.4K · Bought 45.0K
Granted 402.4K · Sold 54.6K
Granted 41.4K
Granted 114.5K · Bought 10.0K
Granted 125.9K
Granted 108.4K · Bought 5.3K · Sold 10.1K
Granted 108.4K · Bought 18.3K
Granted 23.7K · Bought 12.5K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Lanigan MatthewPresident & CEO, Director · 44 transactions | — | 1.02M | 1.49M | 19.0K | 237.3K |
| Piontek GreggSenior Vice President and CFO · 38 transactions | +109.3% | 882.8K | 836.2K | 10.0K | 173.6K |
| Paterson David AVP & President, Fluids Systems, VP & President, Fluids Systems · 18 transactions | +106.7% | 351.6Kas of Jun 2024 | 310.9K | — | — |
| Young Donald WinDirector · 12 transactions | — | 310.9Kas of May 2025 | 99.8K | 211.1K | — |
| White Douglas LVP, CAO & Treasurer · 37 transactions | +214.7% | 305.2Kas of Jun 2025 | 265.5K | — | — |
| Fruge Mary CelesteVP, General Counsel · 21 transactions | — | 267.4K | 155.0K | — | 12.2K |
| Larson Roderick A.Director · 5 transactions | — | 257.3K | 108.4K | — | — |
| Minge John CDirector · 11 transactions | +152.6% | 253.9K | 108.4K | 45.0K | — |
| Briggs LoriVP & President, Ind. Solutions · 50 transactions | — | 247.2K | 402.4K | — | 54.6K |
| Best Anthony JamesDirector · 1 transaction | +21.1% | 237.8Kas of May 2022 | 41.4K | — | — |
| Earle Edward ChipmanVP, General Counsel, CAO · 8 transactions | +80.3% | 230.3Kas of Dec 2022 | 114.5K | 10.0K | — |
| Robeson Rose MDirector · 5 transactions | +126.9% | 225.1K | 125.9K | — | — |
| Lewis Michael ADirector · 11 transactions | +302% | 137.9K | 108.4K | 5.3K | 10.1K |
| Meer Claudia MichelDirector · 10 transactions | — | 126.7K | 108.4K | 18.3K | — |
| Cutillo Joseph ADirector · 3 transactions | — | 36.2K | 23.7K | 12.5K | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: -156.6K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.