Gregg Piontek

All filings by Gregg Piontek on record concern NPK International Inc., in the capacity of finance chief. In total, 12 filings cover trades dated from 1 June 2021 to 9 April 2026.

On the open market, the record shows 1 purchase worth €25k and 3 sales worth €825k. Netting one side against the other leaves €800k of net selling. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. The rest of the record consists of 2 share grants and 6 option exercises. So far in 2026, the count stands at no purchases and 3 sales.

The latest filing, published on 10 April 2026, reports an open-market sale of €193k in NPK International Inc. The last purchase on record was published on 9 August 2022, which is 1,531 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. For comparison, the SEC allows two business days to file a Form 4. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.