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CIK 0000071829 · Accelerated filer

NPK International Inc.

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Ticker
NPKI
Exchange
NYSE
Industry
Services-Miscellaneous Equipment Rental & Leasing
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
721123385
Phone
281-362-6800
Business address
9320 LAKESIDE BOULEVARD, SUITE 100, THE WOODLANDS, TX, 77381
Former names
NEWPARK RESOURCES INC
Open-market buys, last 90 days
$138,600
in 1 filing
Open-market sales, last 90 days
$203,735
in 3 filings, $204K under 10b5-1 plans

Net −$65,135. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2025-08-25 Lewis Michael A Director Sale 10b5-1 −2,013 $10.33 $21K 135,359
2025-08-22 LANIGAN MATTHEW President & CEO Option exercise 10b5-1 +68,896 $4.32 $298K 1,164,809
2025-08-22 LANIGAN MATTHEW President & CEO Sale 10b5-1 −68,896 $10.34 $713K 1,095,913
2025-08-22 LANIGAN MATTHEW President & CEO Option exercise · Non-Qualified Stock Option (right to buy) 10b5-1 −68,896 $10.34 $713K 1,000
2025-08-11 Briggs Lori VP & President, Ind. Solutions Sale 10b5-1 −8,005 $9.51 $76K 252,621
2025-07-09 Briggs Lori VP & President, Ind. Solutions Sale 10b5-1 −8,005 $8.57 $69K 260,626
2025-06-16 Lewis Michael A Director Sale 10b5-1 −2,013 $8.60 $17K 137,372
2025-06-14 WHITE DOUGLAS L VP, CAO & Treasurer Grant or award +730 $6.51 $5K 305,245
2025-06-06 Briggs Lori VP & President, Ind. Solutions Sale 10b5-1 −9,704 $8.38 $81K 268,631
2025-06-01 Fruge Mary Celeste VP, General Counsel Option exercise +17,274 265,213
2025-06-01 Fruge Mary Celeste VP, General Counsel Option exercise · Restricted Stock Units −17,274 17,274
2025-06-01 WHITE DOUGLAS L VP, CAO & Treasurer Option exercise +17,333 305,561
2025-06-01 WHITE DOUGLAS L VP, CAO & Treasurer Option exercise +14,667 320,228
2025-06-01 WHITE DOUGLAS L VP, CAO & Treasurer Shares withheld for taxes −3,122 $8.09 $25K 317,106
2025-06-01 WHITE DOUGLAS L VP, CAO & Treasurer Shares withheld for taxes −6,820 $8.09 $55K 310,286
2025-06-01 WHITE DOUGLAS L VP, CAO & Treasurer Shares withheld for taxes −5,771 $8.09 $47K 304,515
2025-06-01 WHITE DOUGLAS L VP, CAO & Treasurer Option exercise · Restricted Stock Units −17,333 29,333
2025-06-01 WHITE DOUGLAS L VP, CAO & Treasurer Option exercise · Restricted Stock Units −14,667 14,666
2025-06-01 Briggs Lori VP & President, Ind. Solutions Option exercise +26,396 279,359
2025-06-01 Briggs Lori VP & President, Ind. Solutions Option exercise +24,340 303,699

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