NPK International (NPKI) Institutional Ownership $8.43 +0.02 (+0.24%) 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)6TotalInstitutional Inflows(last 12 months)$8.70MNumber 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 CompanyDetails7/16/2025Kathmere Capital Management LLC19,203$163K0.0%N/A0.023% 7/15/2025Public 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, the following institutional investors and hedge funds held shares of NPK International shares: Harbor Capital Advisors Inc. ($7.62M), Public Employees Retirement System of Ohio ($458K), Diversified Trust Co ($210K), NorthCrest Asset Manangement LLC ($188K), and Kathmere Capital Management LLC ($163K), GAMMA Investing LLC ($66K).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? The following institutional investors have purchased NPK International's stock in the last 24 months: Harbor Capital Advisors Inc. ($894.79K), Public Employees Retirement System of Ohio ($53.79K), Diversified Trust Co ($24.68K), NorthCrest Asset Manangement LLC ($21.29K), Kathmere Capital Management LLC ($19.20K), and GAMMA Investing LLC ($7.74K). How much institutional buying is happening at NPK International? Institutional investors have bought a total of 1,021,495 shares in the last 24 months. This purchase volume represents approximately $8.70M in transactions. Related Companies HSAI Major Shareholders SEI Major Shareholders EPAC Major Shareholders PSIX Major Shareholders FLOC Major Shareholders ACMR Major Shareholders CRCT Major Shareholders DNOW Major Shareholders AZTA Major Shareholders OUST Major Shareholders This page (NYSE:NPKI) was last updated on 7/16/2025 by MarketBeat.com Staff From Our PartnersRevolutionary AI Tech Targets Early Diabetic Blindness Detection FDA Trial UnderwayTiny Stock, Massive Potential— this company’s AI platform is a game changer for healthcare!Interactive Offers | SponsoredBank of America Says Gold Could Hit $4,000. Here How to Get Paid“I’ve always hated gold. 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