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NPKI Insider Trading

Insider Ownership Percentage: 4.90%
Insider Buying (Last 12 Months): $153,800.00
Insider Selling (Last 12 Months): $1,011,076.65

NPK International Insider Trading History Chart

This chart shows the insider buying and selling history at NPK International by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

NPK International Share Price & Price History

Current Price: $12.95
Price Change: ▲ Price Increase of +0.445 (3.56%)
As of 12/4/2025 04:59 PM ET

This chart shows the closing price history over time for NPKI up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

NPK International Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/24/2025Michael A. LewisDirectorSell2,013$12.00$24,156.00133,346View SEC Filing Icon  
9/3/2025Matthew LaniganCEOSell1,000$10.38$10,380.001,095,913View SEC Filing Icon  
8/25/2025Michael A. LewisDirectorSell2,013$10.33$20,794.29135,359View SEC Filing Icon  
8/22/2025Matthew LaniganCEOSell68,896$10.34$712,384.641,095,913View SEC Filing Icon  
8/11/2025Lori BriggsVPSell8,005$9.51$76,127.55252,621View SEC Filing Icon  
7/9/2025Lori BriggsVPSell8,005$8.57$68,602.85260,626View SEC Filing Icon  
6/16/2025Michael A. LewisDirectorSell2,013$8.60$17,311.80137,372View SEC Filing Icon  
6/6/2025Lori BriggsVPSell9,704$8.38$81,319.52268,631View SEC Filing Icon  
5/8/2025Joseph A CutilloDirectorBuy12,500$8.00$100,000.0012,500View SEC Filing Icon  
3/5/2025John C MingeDirectorBuy10,000$5.38$53,800.00230,287View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for NPK International (NYSE:NPKI)

80.81% of NPK International stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at NPKI by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

NPK International Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/24/2025Penn Capital Management Company LLC53,029$0.60M0.0%N/A0.063%Search for SEC Filing on Google Icon
11/20/2025Wilmington Savings Fund Society FSB2,458$28K0.0%N/A0.003%Search for SEC Filing on Google Icon
11/17/2025Jacobs Levy Equity Management Inc.492,622$5.57M0.0%-0.4%0.583%Search for SEC Filing on Google Icon
11/17/2025Perritt Capital Management Inc138,500$1.57M0.7%-88.4%0.164%Search for SEC Filing on Google Icon
11/17/2025XTX Topco Ltd46,000$0.52M0.0%-25.7%0.054%Search for SEC Filing on Google Icon
11/17/2025Wasatch Advisors LP2,281,864$25.81M0.1%-23.4%2.701%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC65,042$0.74M0.0%+7.7%0.077%Search for SEC Filing on Google Icon
11/17/2025Susquehanna Fundamental Investments LLC15,843$0.18M0.0%N/A0.019%Search for SEC Filing on Google Icon
11/17/2025Susquehanna International Group LLP11,561$0.13M0.0%-91.2%0.014%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd658,532$7.45M0.0%-6.4%0.779%Search for SEC Filing on Google Icon
11/17/2025Punch & Associates Investment Management Inc.1,894,726$21.43M1.2%+1.5%2.242%Search for SEC Filing on Google Icon
11/17/2025Pennant Select LLC1,062,263$12.01M7.6%-2.4%1.257%Search for SEC Filing on Google Icon
11/17/2025Mercer Global Advisors Inc. ADV22,885$0.26M0.0%-5.8%0.027%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC167,043$1.89M0.0%+82.8%0.198%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.36,484$0.41M0.0%-17.2%0.043%Search for SEC Filing on Google Icon
11/17/2025Granahan Investment Management LLC499,940$5.65M0.2%-24.0%0.592%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP31,485$0.36M0.0%-41.7%0.037%Search for SEC Filing on Google Icon
11/17/2025Cannell Capital LLC1,454,204$16.45M2.5%-4.2%1.721%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE143,392$1.62M0.0%+145.3%0.170%Search for SEC Filing on Google Icon
11/17/2025Boothbay Fund Management LLC64,680$0.73M0.0%+154.8%0.077%Search for SEC Filing on Google Icon
11/17/2025Aquatic Capital Management LLC28,799$0.33M0.0%N/A0.034%Search for SEC Filing on Google Icon
11/17/2025ArrowMark Colorado Holdings LLC1,047,050$11.84M0.2%-22.7%1.239%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.5,247,637$59.35M0.0%-14.0%6.211%Search for SEC Filing on Google Icon
11/14/2025Creative Planning33,945$0.38M0.0%+7.0%0.040%Search for SEC Filing on Google Icon
11/14/2025Zacks Investment Management37,860$0.43M0.0%+54.4%0.045%Search for SEC Filing on Google Icon
11/14/2025Ancora Advisors LLC1,195,880$13.53M0.3%-17.2%1.415%Search for SEC Filing on Google Icon
11/14/2025Panoramic Capital LLC170,434$1.93M0.9%N/A0.202%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC124,141$1.40M0.0%-47.7%0.147%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP433,700$4.91M0.0%+293.7%0.513%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC689,815$7.80M0.2%+3.2%0.816%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC17,805$0.20M0.0%N/A0.021%Search for SEC Filing on Google Icon
11/14/2025Marathon Capital Management388,350$4.39M1.0%-1.9%0.460%Search for SEC Filing on Google Icon
11/14/2025Comerica Bank5,609$63K0.0%-66.2%0.007%Search for SEC Filing on Google Icon
11/13/2025Jump Financial LLC218,000$2.47M0.0%N/A0.258%Search for SEC Filing on Google Icon
11/13/2025Boston Partners75,637$0.86M0.0%-17.7%0.090%Search for SEC Filing on Google Icon
11/13/2025Entropy Technologies LP16,300$0.18M0.0%N/A0.019%Search for SEC Filing on Google Icon
11/13/2025Arrowstreet Capital Limited Partnership883,571$9.99M0.0%+173.8%1.046%Search for SEC Filing on Google Icon
11/13/2025Ironwood Investment Management LLC142,154$1.61M0.7%-0.7%0.168%Search for SEC Filing on Google Icon
11/13/2025Sei Investments Co.61,603$0.70M0.0%N/A0.073%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG252,718$2.86M0.0%+302.6%0.299%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets36,489$0.41M0.0%+367.2%0.043%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.108,572$1.23M0.0%-74.9%0.128%Search for SEC Filing on Google Icon
11/13/2025Legal & General Group Plc60,102$0.68M0.0%-28.0%0.071%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.1,933,526$21.87M0.0%+47.2%2.288%Search for SEC Filing on Google Icon
11/13/2025Pinnacle Associates Ltd.66,478$0.75M0.0%N/A0.079%Search for SEC Filing on Google Icon
11/13/2025Paragon Associates & Paragon Associates II Joint Venture450,000$5.09M9.1%-10.0%0.533%Search for SEC Filing on Google Icon
11/12/2025Barclays PLC111,040$1.26M0.0%-28.0%0.131%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP4,797,458$54.26M0.0%-10.0%5.678%Search for SEC Filing on Google Icon
11/12/2025First Eagle Investment Management LLC272,121$3.08M0.0%-34.8%0.322%Search for SEC Filing on Google Icon
11/12/2025Victory Capital Management Inc.74,750$0.85M0.0%-54.2%0.088%Search for SEC Filing on Google Icon
11/12/2025Roubaix Capital LLC742,697$8.40M3.9%-7.6%0.879%Search for SEC Filing on Google Icon
11/12/2025Royce & Associates LP2,442,280$27.62M0.3%-4.8%2.890%Search for SEC Filing on Google Icon
11/12/2025American Century Companies Inc.2,971,066$33.60M0.0%+13.1%3.516%Search for SEC Filing on Google Icon
11/12/2025Quantbot Technologies LP47,739$0.54M0.0%N/A0.056%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC47,557$0.54M0.0%-15.9%0.056%Search for SEC Filing on Google Icon
11/12/2025Fox Run Management L.L.C.34,957$0.40M0.1%+132.3%0.041%Search for SEC Filing on Google Icon
11/10/2025Counterpoint Mutual Funds LLC37,237$0.42M0.0%N/A0.044%Search for SEC Filing on Google Icon
11/10/2025Ameritas Investment Partners Inc.6,561$74K0.0%-14.5%0.008%Search for SEC Filing on Google Icon
11/10/2025Bleakley Financial Group LLC24,960$0.28M0.0%-4.0%0.030%Search for SEC Filing on Google Icon
11/10/2025Northeast Financial Group Inc.66,810$0.76M0.2%-28.8%0.079%Search for SEC Filing on Google Icon
11/7/2025Rothschild Investment LLC101,285$1.15M0.1%-3.9%0.120%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.4,750,263$53.73M0.0%+0.4%5.622%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.223,464$2.53M0.0%+200.5%0.264%Search for SEC Filing on Google Icon
11/7/2025PNC Financial Services Group Inc.17,806$0.20M0.0%-17.5%0.021%Search for SEC Filing on Google Icon
11/6/2025Skylands Capital LLC184,000$2.08M0.3%-15.8%0.218%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers143,748$1.63M0.0%-2.5%0.170%Search for SEC Filing on Google Icon
11/6/2025Versor Investments LP14,500$0.16M0.0%-72.0%0.017%Search for SEC Filing on Google Icon
11/6/2025ProShare Advisors LLC13,428$0.15M0.0%-18.6%0.016%Search for SEC Filing on Google Icon
11/6/2025Oppenheimer Asset Management Inc.32,195$0.36M0.0%-2.7%0.038%Search for SEC Filing on Google Icon
11/5/2025Envestnet Asset Management Inc.12,584$0.14M0.0%-24.1%0.015%Search for SEC Filing on Google Icon
11/4/2025State of Wyoming34,896$0.40M0.0%N/A0.041%Search for SEC Filing on Google Icon
11/4/2025Principal Financial Group Inc.79,976$0.91M0.0%+95.1%0.095%Search for SEC Filing on Google Icon
11/3/2025AlphaQuest LLC22,706$0.26M0.0%+4.0%0.027%Search for SEC Filing on Google Icon
10/30/2025Strs Ohio61,600$0.70M0.0%-11.1%0.073%Search for SEC Filing on Google Icon
10/29/2025NorthCrest Asset Manangement LLC38,839$0.43M0.0%+82.5%0.046%Search for SEC Filing on Google Icon
10/29/2025Wealth Enhancement Advisory Services LLC2,962$33K0.0%N/A0.004%Search for SEC Filing on Google Icon
10/28/2025Campbell & CO Investment Adviser LLC71,019$0.80M0.1%+143.3%0.084%Search for SEC Filing on Google Icon
10/28/2025Wilmington Savings Fund Society FSB2,458$28K0.0%N/A0.003%Search for SEC Filing on Google Icon
10/27/2025GWN Securities Inc.17,693$0.20M0.0%-58.0%0.021%Search for SEC Filing on Google Icon
10/24/2025State of Alaska Department of Revenue4,604$52K0.0%N/A0.005%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC28,472$0.32M0.0%+178.3%0.034%Search for SEC Filing on Google Icon
10/22/2025Longboard Asset Management LP13,764$0.16M0.3%N/A0.016%Search for SEC Filing on Google Icon
10/20/2025Pinnacle Wealth Management Advisory Group LLC12,661$0.14M0.0%N/A0.015%Search for SEC Filing on Google Icon
10/20/2025Calamos Advisors LLC339,092$3.84M0.0%+338.0%0.402%Search for SEC Filing on Google Icon
10/20/2025Diversified Trust Co27,447$0.31M0.0%+11.2%0.033%Search for SEC Filing on Google Icon
10/16/2025Rice Hall James & Associates LLC573,673$6.49M0.4%-12.6%0.679%Search for SEC Filing on Google Icon
10/15/2025Harbor Capital Advisors Inc.230,425$2.61M0.2%-74.2%0.273%Search for SEC Filing on Google Icon
10/9/2025Voya Investment Management LLC15,001$0.17M0.0%-41.7%0.018%Search for SEC Filing on Google Icon
9/4/2025Osaic Holdings Inc.9,121$78K0.0%N/A0.011%Search for SEC Filing on Google Icon
8/15/2025CANADA LIFE ASSURANCE Co77,893$0.66M0.0%N/A0.092%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 11,518$98K0.0%N/A0.014%Search for SEC Filing on Google Icon
8/15/2025Cannell Capital LLC1,517,890$12.92M3.9%N/A1.798%Search for SEC Filing on Google Icon
8/15/2025Conversant Capital LLC2,714,779$23.10M3.6%N/A3.215%Search for SEC Filing on Google Icon
8/15/2025Captrust Financial Advisors19,372$0.17M0.0%N/A0.023%Search for SEC Filing on Google Icon
8/15/2025Wasatch Advisors LP2,977,755$25.34M0.1%N/A3.527%Search for SEC Filing on Google Icon
8/15/2025Oxford Asset Management LLP36,685$0.31M0.1%N/A0.043%Search for SEC Filing on Google Icon
8/15/2025Man Group plc27,748$0.24M0.0%N/A0.033%Search for SEC Filing on Google Icon
8/15/2025G2 Investment Partners Management LLC110,200$0.94M0.2%N/A0.131%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets7,810$66K0.0%N/A0.009%Search for SEC Filing on Google Icon
8/15/2025Boothbay Fund Management LLC25,388$0.22M0.0%N/A0.030%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
NPK International logo
NPK International Inc. provides products, rentals, and services primarily to the oil and natural gas exploration and production (E&P) industry. It operates through two segments, Fluids Systems and Industrial Solutions. The Fluids Systems segment provides drilling, completion, and stimulation fluids products and related technical services to customers primarily in the North America, Europe, the Middle East, and Africa, as well as other countries in the Asia Pacific and Latin America. The Industrial Solutions segment offers composite matting system rentals utilized for temporary worksite access; related site construction and services to customers in various markets, including power transmission, E&P, pipeline, renewable energy, petrochemical, construction, and other industries primarily in the United States and Europe; recyclable composite mats to customers worldwide; and access road construction, site planning and preparation, environmental protection, erosion control, and site restoration services. The company was formerly known as Newpark Resources, Inc. and changed its name to NPK International Inc. in December 2024. The company was incorporated in 1932 and is headquartered in The Woodlands, Texas.
Read More on NPK International

Today's Range

Now: $12.95
Low: $12.48
High: $12.95

50 Day Range

MA: $12.04
Low: $10.75
High: $13.64

52 Week Range

Now: $12.95
Low: $4.76
High: $14.00

Volume

822,029 shs

Average Volume

756,661 shs

Market Capitalization

$1.09 billion

P/E Ratio

34.07

Dividend Yield

N/A

Beta

1.28

Who are the company insiders with the largest holdings of NPK International?

NPK International's top insider investors include:
  1. Matthew Lanigan (CEO)
  2. Lori Briggs (VP)
  3. John C Minge (Director)
  4. Michael A Lewis (Director)
  5. Joseph A Cutillo (Director)
Learn More about top insider investors at NPK International.

Who are the major institutional investors of NPK International?

NPK International's top institutional shareholders include:
  1. Ameriprise Financial Inc. — 6.21%
  2. Dimensional Fund Advisors LP — 5.68%
  3. Vanguard Group Inc. — 5.62%
  4. American Century Companies Inc. — 3.52%
  5. Royce & Associates LP — 2.89%
  6. Wasatch Advisors LP — 2.70%
Learn More about top institutional investors of NPK International stock.

Which institutional investors are selling NPK International stock?

During the previous quarter, NPKI stock was sold by these institutional investors:
  1. Perritt Capital Management Inc
  2. Ameriprise Financial Inc.
  3. Wasatch Advisors LP
  4. Harbor Capital Advisors Inc.
  5. Dimensional Fund Advisors LP
  6. Franklin Resources Inc.
  7. ArrowMark Colorado Holdings LLC
  8. Ancora Advisors LLC
Within the previous year, company insiders that have sold NPK International company stock include:
  1. Matthew Lanigan (CEO)
  2. Lori Briggs (VP)
  3. John C Minge (Director)
Learn More investors selling NPK International stock.

Which institutional investors are buying NPK International stock?

During the previous quarter, NPKI stock was acquired by institutional investors including:
  1. Russell Investments Group Ltd.
  2. Arrowstreet Capital Limited Partnership
  3. American Century Companies Inc.
  4. Two Sigma Investments LP
  5. Calamos Advisors LLC
  6. Jump Financial LLC
  7. UBS Group AG
  8. Panoramic Capital LLC
During the last year, these company insiders have bought NPK International stock:
  1. Matthew Lanigan (CEO)
  2. Lori Briggs (VP)
Learn More investors buying NPK International stock.