NPK International (NPKI) Institutional Ownership $10.39 +0.39 (+3.90%) As of 03:59 PM Eastern Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for NPK International (NYSE:NPKI)CurrentInstitutional OwnershipPercentage80.81%Number ofInstitutional Buyers(last 12 months)87TotalInstitutional Inflows(last 12 months)$267.13MNumber ofInstitutional Sellers(last 12 months)0 Get NPKI Insider Trade Alerts Want to know when executives and insiders are buying or selling NPK International stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data NPKI Institutional Buying and Selling by Quarter NPK International Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/15/2025 CANADA LIFE ASSURANCE Co77,893$664K0.0%N/A0.092% 8/15/2025 Tower Research Capital LLC TRC 11,518$98K0.0%N/A0.014% 8/15/2025 Cannell Capital LLC1,517,890$12.92M3.9%N/A1.798% 8/15/2025 Conversant Capital LLC2,714,779$23.10M3.6%N/A3.215% 8/15/2025 Captrust Financial Advisors19,372$165K0.0%N/A0.023% 8/15/2025 Wasatch Advisors LP2,977,755$25.34M0.1%N/A3.527% 8/15/2025 Oxford Asset Management LLP36,685$312K0.1%N/A0.043% 8/15/2025 Man Group plc27,748$236K0.0%N/A0.033% 8/15/2025 G2 Investment Partners Management LLC110,200$938K0.2%N/A0.131% 8/15/2025 BNP Paribas Financial Markets7,810$66K0.0%N/A0.009% Get the Latest News and Ratings for NPKI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for NPK International and its competitors with MarketBeat's FREE daily newsletter. 8/15/2025 Boothbay Fund Management LLC25,388$216K0.0%N/A0.030% 8/15/2025 Bridgeway Capital Management LLC668,207$5.69M0.1%N/A0.791% 8/15/2025 Brevan Howard Capital Management LP54,000$460K0.0%N/A0.064% 8/15/2025 Bank of America Corp DE58,448$497K0.0%N/A0.069% 8/15/2025 Ameriprise Financial Inc.6,099,085$51.90M0.0%N/A7.224% 8/14/2025 Jane Street Group LLC447,750$3.81M0.0%N/A0.530% 8/14/2025 California State Teachers Retirement System75,858$646K0.0%N/A0.090% 8/14/2025 Raymond James Financial Inc.187,387$1.60M0.0%N/A0.222% 8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.44,059$375K0.0%N/A0.052% 8/14/2025 The Manufacturers Life Insurance Company 29,942$255K0.0%N/A0.035% 8/14/2025 Marathon Capital Management395,850$3.37M0.9%N/A0.469% 8/14/2025 Nebula Research & Development LLC38,442$327K0.0%N/A0.046% 8/14/2025 NewEdge Advisors LLC11,136$95K0.0%N/A0.013% 8/14/2025 Qube Research & Technologies Ltd703,291$5.99M0.0%N/A0.833% 8/14/2025 Federated Hermes Inc.4,612$39K0.0%N/A0.005% 8/13/2025 Cresset Asset Management LLC10,000$85K0.0%N/A0.012% 8/13/2025 Kennedy Capital Management LLC186,117$1.58M0.0%N/A0.220% 8/13/2025 EverSource Wealth Advisors LLC3,022$26K0.0%N/A0.004% 8/13/2025 Invesco Ltd.175,222$1.49M0.0%N/A0.208% 8/13/2025 Arrowstreet Capital Limited Partnership322,735$2.75M0.0%N/A0.382% 8/13/2025 OMERS ADMINISTRATION Corp11,200$95K0.0%N/A0.013% 8/13/2025 Fisher Asset Management LLC239,286$2.04M0.0%N/A0.283% 8/13/2025 Panagora Asset Management Inc.607,722$5.17M0.0%N/A0.720% 8/13/2025 New York State Common Retirement Fund20,189$172K0.0%N/A0.024% 8/13/2025 Loomis Sayles & Co. L P1,535,447$13.07M0.0%N/A1.819% 8/13/2025 State Board of Administration of Florida Retirement System48,622$414K0.0%N/A0.058% 8/13/2025 Choreo LLC34,249$291K0.0%N/A0.041% 8/13/2025 Russell Investments Group Ltd.1,313,612$11.18M0.0%N/A1.556% 8/12/2025 Boston Partners91,918$782K0.0%N/A0.109% 8/12/2025 XTX Topco Ltd61,938$527K0.0%N/A0.073% Cover all your expenses with just $118,000 invested? (Ad)Generate up to $5,000/month with 10X less money? That's what every financial advisor tells you. But I just discovered a new way to do it with 10X less money.Start collecting this income (next payout coming soon)8/12/2025 Tieton Capital Management LLC978,990$8.33M3.4%N/A1.160% 8/12/2025 Ameritas Investment Partners Inc.7,671$65K0.0%N/A0.009% 8/12/2025 Prudential Financial Inc.414,233$3.53M0.0%N/A0.491% 8/12/2025 American Century Companies Inc.2,626,408$22.35M0.0%N/A3.111% 8/12/2025 Rhumbline Advisers147,460$1.26M0.0%N/A0.175% 8/12/2025 Franklin Resources Inc.432,786$3.68M0.0%N/A0.513% 8/12/2025 Legal & General Group Plc83,486$710K0.0%N/A0.099% 8/12/2025 JPMorgan Chase & Co.74,376$633K0.0%N/A0.088% 8/12/2025 Swiss National Bank157,000$1.34M0.0%N/A0.186% 8/11/2025 ARS Investment Partners LLC34,371$292K0.0%N/A0.041% 8/11/2025 Empowered Funds LLC418,207$3.56M0.0%N/A0.495% 8/11/2025 Rothschild Investment LLC105,426$897K0.1%N/A0.125% 8/8/2025 Intech Investment Management LLC56,521$481K0.0%N/A0.067% 8/8/2025 Cetera Investment Advisers22,462$191K0.0%N/A0.027% 8/8/2025 Creative Planning31,737$270K0.0%N/A0.038% 8/8/2025 Calamos Advisors LLC77,410$659K0.0%N/A0.092% 8/8/2025 Police & Firemen s Retirement System of New Jersey19,075$162K0.0%N/A0.023% 8/8/2025 Geode Capital Management LLC2,335,175$19.87M0.0%N/A2.763% 8/8/2025 PNC Financial Services Group Inc.21,579$184K0.0%N/A0.026% 8/7/2025 Boston Partners91,918$782K0.0%N/A0.109% 8/7/2025 49 Wealth Management LLC25,855$220K0.0%N/A0.031% 8/7/2025 ProShare Advisors LLC16,491$140K0.0%N/A0.020% 8/7/2025 Campbell & CO Investment Adviser LLC29,188$248K0.0%N/A0.035% 8/6/2025 Fox Run Management L.L.C.15,045$128K0.0%N/A0.018% 8/6/2025 First Eagle Investment Management LLC417,121$3.55M0.0%N/A0.494% 8/6/2025 Savant Capital LLC35,116$299K0.0%N/A0.042% 8/5/2025 Versor Investments LP51,800$441K0.1%N/A0.061% 8/4/2025 Amalgamated Bank2,902$25K0.0%N/A0.003% 8/1/2025 GWN Securities Inc.42,152$359K0.1%N/A0.050% 8/1/2025 Teacher Retirement System of Texas12,487$106K0.0%N/A0.015% 8/1/2025 Riverwater Partners LLC38,825$330K0.2%N/A0.046% 8/1/2025 Envestnet Asset Management Inc.16,589$141K0.0%N/A0.020% 7/31/2025 Nisa Investment Advisors LLC5,272$45K0.0%N/A0.006% 7/31/2025 Oppenheimer Asset Management Inc.33,102$282K0.0%N/A0.039% 7/31/2025 AlphaQuest LLC21,837$186K0.0%N/A0.026% 7/30/2025 Bleakley Financial Group LLC25,994$221K0.0%N/A0.031% 7/28/2025 Ritholtz Wealth Management10,601$90K0.0%N/A0.013% 7/28/2025 Penbrook Management LLC68,585$584K0.4%N/A0.081% 7/25/2025 Penbrook Management LLC81,410$693K0.5%N/A0.096% 7/25/2025 CWM LLC3,152$27K0.0%N/A0.004% 7/23/2025 KLP Kapitalforvaltning AS15,100$129K0.0%N/A0.018% 7/18/2025 Northeast Financial Group Inc.93,810$798K0.2%N/A0.111% 7/17/2025 Janney Montgomery Scott LLC126,550$1.08M0.0%N/A0.150% 7/16/2025 Kathmere Capital Management LLC19,203$163K0.0%N/A0.023% 7/15/2025 Public Employees Retirement System of Ohio53,788$458K0.0%N/A0.064% 7/14/2025 GAMMA Investing LLC7,742$66K0.0%N/A0.009% 7/11/2025 Diversified Trust Co24,684$210K0.0%N/A0.029% 7/10/2025 NorthCrest Asset Manangement LLC21,285$188K0.0%N/A0.025% 7/9/2025 Harbor Capital Advisors Inc.894,793$7.62M0.3%N/A1.059% (Data available from 1/1/2016 forward) NPKI Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of NPKI shares? During the previous two years, 87 institutional investors and hedge funds held shares of NPK International. The most heavily invested institutionals were Ameriprise Financial Inc. ($51.90M), Wasatch Advisors LP ($25.34M), Conversant Capital LLC ($23.10M), American Century Companies Inc. ($22.35M), Geode Capital Management LLC ($19.87M), Loomis Sayles & Co. L P ($13.07M), and Cannell Capital LLC ($12.92M).Learn more on NPK International's institutional investors. What percentage of NPK International's stock is owned by institutional investors? 80.81% of NPK International's stock is owned by institutional investors. Learn more on NPKI's institutional investor holdings. Which institutional investors have been buying NPK International's stock? Of the 87 institutional investors that purchased NPK International's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Ameriprise Financial Inc. ($6.10M), Wasatch Advisors LP ($2.98M), Conversant Capital LLC ($2.71M), American Century Companies Inc. ($2.63M), Geode Capital Management LLC ($2.34M), Loomis Sayles & Co. L P ($1.54M), and Cannell Capital LLC ($1.52M). How much institutional buying is happening at NPK International? Institutional investors have bought a total of 31,353,154 shares in the last 24 months. This purchase volume represents approximately $267.13M in transactions. Related Companies WHD Major Shareholders HSAI Major Shareholders ATS Major Shareholders EPAC Major Shareholders OUST Major Shareholders PSIX Major Shareholders DNOW Major Shareholders CECO Major Shareholders ACMR Major Shareholders FLOC Major Shareholders This page (NYSE:NPKI) was last updated on 8/22/2025 by MarketBeat.com Staff From Our PartnersGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. 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