4processed

Form 4 — Insider Transaction

NPK International Inc.(NPKI)

Filing Date

May 19, 2026

Accepted

May 19, 2026

Accession No.

0001880836-26-000002

CIK

0000071829

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Briggs LoriVP & President, Ind. SolutionsOther20.8K$0263.4KCommon StockMay 19, 2026