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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
2025-06-01 Briggs Lori VP & President, Ind. Solutions Shares withheld for taxes −5,401 $8.09 $44K 298,298
2025-06-01 Briggs Lori VP & President, Ind. Solutions Shares withheld for taxes −9,577 $8.09 $77K 288,721
2025-06-01 Briggs Lori VP & President, Ind. Solutions Shares withheld for taxes −10,386 $8.09 $84K 278,335
2025-06-01 Briggs Lori VP & President, Ind. Solutions Option exercise · Restricted Stock Units −26,396 48,680
2025-06-01 Briggs Lori VP & President, Ind. Solutions Option exercise · Restricted Stock Units −24,340 24,340
2025-06-01 LANIGAN MATTHEW President & CEO Option exercise +108,651 1,100,134
2025-06-01 LANIGAN MATTHEW President & CEO Option exercise +100,188 1,200,322
2025-06-01 LANIGAN MATTHEW President & CEO Shares withheld for taxes −22,232 $8.09 $180K 1,178,090
2025-06-01 LANIGAN MATTHEW President & CEO Shares withheld for taxes −39,423 $8.09 $319K 1,138,667
2025-06-01 LANIGAN MATTHEW President & CEO Shares withheld for taxes −42,754 $8.09 $346K 1,095,913
2025-06-01 LANIGAN MATTHEW President & CEO Option exercise · Restricted Stock Units −108,651 200,376
2025-06-01 LANIGAN MATTHEW President & CEO Option exercise · Restricted Stock Units −100,188 100,188
2025-06-01 Piontek Gregg Senior Vice President and CFO Option exercise +43,790 921,026
2025-06-01 Piontek Gregg Senior Vice President and CFO Shares withheld for taxes −17,231 $8.09 $139K 903,795
2025-06-01 Piontek Gregg Senior Vice President and CFO Shares withheld for taxes −15,889 $8.09 $129K 887,906
2025-06-01 Piontek Gregg Senior Vice President and CFO Shares withheld for taxes −8,959 $8.09 $72K 878,947
2025-06-01 Piontek Gregg Senior Vice President and CFO Option exercise +40,379 919,326
2025-06-01 Piontek Gregg Senior Vice President and CFO Option exercise · Restricted Stock Units −43,790 80,758
2025-06-01 Piontek Gregg Senior Vice President and CFO Option exercise · Restricted Stock Units −40,379 40,379
2025-06-01 Fruge Mary Celeste VP, General Counsel Shares withheld for taxes −6,797 $8.09 $55K 258,592

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