0001880836-26-000004.txt : 20260603 0001880836-26-000004.hdr.sgml : 20260603 20260603185145 ACCESSION NUMBER: 0001880836-26-000004 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260601 FILED AS OF DATE: 20260603 DATE AS OF CHANGE: 20260603 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Briggs Lori CENTRAL INDEX KEY: 0001880836 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-02960 FILM NUMBER: 261062628 MAIL ADDRESS: STREET 1: 9320 LAKESIDE BOULEVARD STREET 2: SUITE 100 CITY: THE WOODLANDS STATE: TX ZIP: 77381 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: NPK International Inc. CENTRAL INDEX KEY: 0000071829 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-MISCELLANEOUS EQUIPMENT RENTAL & LEASING [7350] ORGANIZATION NAME: 07 Trade & Services EIN: 721123385 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 9320 LAKESIDE BOULEVARD STREET 2: SUITE 100 CITY: THE WOODLANDS STATE: TX ZIP: 77381 BUSINESS PHONE: 281-362-6800 MAIL ADDRESS: STREET 1: 9320 LAKESIDE BOULEVARD STREET 2: SUITE 100 CITY: THE WOODLANDS STATE: TX ZIP: 77381 FORMER COMPANY: FORMER CONFORMED NAME: NEWPARK RESOURCES INC DATE OF NAME CHANGE: 19920703 FORMER COMPANY: FORMER CONFORMED NAME: NEW PARK MINING CO DATE OF NAME CHANGE: 19720828 4 1 edgardoc.xml PRIMARY DOCUMENT X0609 4 2026-06-01 0 0000071829 NPK International Inc. NPKI 0001880836 Briggs Lori false 9320 LAKESIDE BOULEVARD SUITE 100 THE WOODLANDS TX 77381 0 1 0 0 VP & President, Ind. Solutions 1 Common Stock 2026-06-01 4 F 0 5401 14.31 D 257950 D Common Stock 2026-06-01 4 F 0 9577 14.31 D 248373 D Common Stock 2026-06-01 4 F 0 6777 14.31 D 241596 D Common Stock 2026-06-01 4 M 0 24340 0.0 A 265936 D Common Stock 2026-06-02 4 S 0 10446 14.5776 D 255490 D Restricted Stock Units 0.0 2026-06-01 4 M 0 24340 0.0 D Common Stock 24340 0 D Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units. The restricted stock units vest and convert into shares on a one-for-one basis. The reported sale of 10,446 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 15, 2025. The price reported is the weighted average price. These shares were sold in multiple transactions in the open market at prices ranging from $14.33 to $14.74, inclusive. The reporting person undertakes to provide to NPK International Inc., any security holder of NPK International Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4. Grant of restricted stock units that vest in one-third increments on June 1 of each subsequent year after grant and settle in shares. By: M. Celeste Fruge For: Lori Briggs 2026-06-03