Orion (OEC) Institutional Ownership $10.09 -0.33 (-3.12%) Closing price 09/3/2025 03:59 PM EasternExtended Trading$10.07 -0.02 (-0.15%) As of 09/3/2025 04:10 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Orion (NYSE:OEC)CurrentInstitutional OwnershipPercentage94.33%Number ofInstitutional Buyers(last 12 months)127TotalInstitutional Inflows(last 12 months)$219.79MNumber ofInstitutional Sellers(last 12 months)80TotalInstitutional Outflows(last 12 months)$180.65M Get OEC Insider Trade Alerts Want to know when executives and insiders are buying or selling Orion stock? 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Skip Chart & View Institutional Buying and Selling Data OEC Institutional Buying and Selling by Quarter Orion Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/27/2025 Squarepoint Ops LLC222,702$2.34M0.0%+259.3%0.397% 8/19/2025 State of Wyoming20,974$220K0.0%N/A0.037% 8/15/2025 Tower Research Capital LLC TRC 7,382$77K0.0%+321.8%0.013% 8/15/2025 Man Group plc102,732$1.08M0.0%-2.3%0.183% 8/15/2025 Harvey Partners LLC2,424,995$25.44M2.5%+15.5%4.319% 8/15/2025 Grizzlyrock Capital LLC206,280$2.16M1.5%+6.5%0.367% 8/15/2025 Engineers Gate Manager LP162,551$1.71M0.0%+70.2%0.289% 8/15/2025 Cubist Systematic Strategies LLC478,629$5.02M0.0%+54.0%0.852% 8/15/2025 BNP Paribas Financial Markets36,561$384K0.0%+414.7%0.065% 8/15/2025 Balyasny Asset Management L.P.51,416$539K0.0%N/A0.092% Get the Latest News and Ratings for OEC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Orion and its competitors with MarketBeat's FREE daily newsletter. 8/15/2025 Bank of America Corp DE77,335$811K0.0%-60.7%0.138% 8/15/2025 Ameriprise Financial Inc.48,215$506K0.0%-60.0%0.086% 8/14/2025 Lighthouse Investment Partners LLC384,541$4.03M0.2%+3.1%0.685% 8/14/2025 Kent Lake PR LLC450,714$4.73M2.1%-9.9%0.803% 8/14/2025 Jane Street Group LLC220,404$2.31M0.0%+82.0%0.393% 8/14/2025 Raymond James Financial Inc.275,490$2.89M0.0%+19.4%0.491% 8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.30,394$319K0.0%-10.2%0.054% 8/14/2025 Squarepoint Ops LLC222,702$2.34M0.0%+259.3%0.397% 8/14/2025 Nebula Research & Development LLC74,326$780K0.1%-15.8%0.132% 8/14/2025 Qube Research & Technologies Ltd457,586$4.80M0.0%+68.2%0.815% 8/14/2025 Cerity Partners LLC39,642$416K0.0%N/A0.071% 8/13/2025 Gamco Investors INC. ET AL77,510$813K0.0%N/A0.138% 8/13/2025 Jump Financial LLC203,418$2.13M0.0%+395.7%0.362% 8/13/2025 Brown Advisory Inc.2,471,143$25.92M0.0%-6.3%4.401% 8/13/2025 Marshall Wace LLP46,418$487K0.0%+52.6%0.083% 8/13/2025 Kennedy Capital Management LLC194,832$2.04M0.0%+7.8%0.347% 8/13/2025 Invesco Ltd.1,805,927$18.94M0.0%+5.3%3.216% 8/13/2025 Isthmus Partners LLC156,640$1.64M0.2%+7.3%0.279% 8/13/2025 Arrowstreet Capital Limited Partnership227,351$2.39M0.0%+12.7%0.405% 8/13/2025 Quantbot Technologies LP7,483$78K0.0%-87.4%0.013% 8/13/2025 Wealthedge Investment Advisors LLC54,802$575K0.2%N/A0.098% 8/13/2025 New York State Common Retirement Fund8,367$88K0.0%-53.2%0.015% 8/13/2025 Russell Investments Group Ltd.43,335$455K0.0%+33.3%0.077% 8/12/2025 Prudential Financial Inc.39,275$412K0.0%+7.4%0.070% 8/12/2025 American Century Companies Inc.2,000,241$20.98M0.0%+5.8%3.562% 8/12/2025 Rhumbline Advisers85,855$901K0.0%+2.8%0.153% 8/12/2025 CenterBook Partners LP294,093$3.09M0.2%+53.9%0.524% 8/12/2025 Franklin Resources Inc.36,104$379K0.0%N/A0.064% 8/12/2025 Legal & General Group Plc63,732$669K0.0%-1.6%0.114% 8/12/2025 JPMorgan Chase & Co.586,943$6.16M0.0%-6.3%1.045% “Fed Proof” Your Bank Account with THESE 4 Simple Steps (Ad)Starting as soon as a few months from now, the United States government will make a sweeping change to bank accounts nationwide. It will give them unprecedented powers to control your bank account.Learn these 4 simple steps and protect your savings before it’s too late.8/12/2025 Entropy Technologies LP14,460$152K0.0%-41.3%0.026% 8/12/2025 Swiss National Bank108,200$1.14M0.0%-3.3%0.193% 8/12/2025 Dynamic Technology Lab Private Ltd15,488$162K0.0%+46.7%0.028% 8/8/2025 Intech Investment Management LLC26,652$280K0.0%-35.5%0.047% 8/8/2025 Police & Firemen s Retirement System of New Jersey13,687$144K0.0%+18.2%0.024% 8/8/2025 Geode Capital Management LLC1,318,222$13.83M0.0%-0.4%2.343% 8/8/2025 Quinn Opportunity Partners LLC414,865$4.35M0.4%+7.8%0.737% 8/7/2025 ProShare Advisors LLC11,377$119K0.0%-7.8%0.020% 8/7/2025 CSM Advisors LLC261,460$2.74M0.1%N/A0.465% 8/7/2025 Campbell & CO Investment Adviser LLC64,356$675K0.0%N/A0.114% 8/6/2025 Fox Run Management L.L.C.12,741$134K0.0%-67.3%0.023% 8/6/2025 Carnegie Lake Advisors LLC198,741$2.09M0.8%+6.4%0.353% 8/1/2025 First Pacific Advisors LP367,751$3.86M0.1%+9.6%0.654% 8/1/2025 GWN Securities Inc.14,074$148K0.0%N/A0.025% 8/1/2025 Y Intercept Hong Kong Ltd132,424$1.39M0.0%+698.1%0.235% 8/1/2025 Envestnet Asset Management Inc.52,634$552K0.0%+9.9%0.094% 7/31/2025 MQS Management LLC16,662$175K0.1%N/A0.030% 7/29/2025 William Blair Investment Management LLC633,446$6.65M0.0%-81.8%1.126% 7/29/2025 Tweedy Browne Co LLC16,329$171K0.0%N/A0.029% 7/25/2025 Pzena Investment Management LLC4,577,197$48.02M0.2%+37.5%8.134% 7/25/2025 CWM LLC19,294$202K0.0%+189.6%0.034% 7/24/2025 Inspire Investing LLC36,431$382K0.0%+37.0%0.065% 7/10/2025 Wealth Enhancement Advisory Services LLC73,627$828K0.0%+461.7%0.131% 6/27/2025 Goldman Sachs Group Inc.223,503$2.89M0.0%-34.4%0.397% 6/18/2025 Voya Investment Management LLC16,108$208K0.0%-9.2%0.029% 6/3/2025 Inspire Investing LLC26,584$344K0.0%+4.9%0.047% 5/29/2025 Rhumbline Advisers83,511$1.08M0.0%+5.5%0.148% 5/28/2025 Strs Ohio15,400$199K0.0%N/A0.027% 5/19/2025 Jane Street Group LLC121,078$1.57M0.0%+202.7%0.215% 5/16/2025 Dean Capital Management45,749$592K0.3%+50.8%0.081% 5/16/2025 Goldman Sachs Group Inc.223,503$2.89M0.0%-34.4%0.397% 5/16/2025 Dynamic Technology Lab Private Ltd10,560$137K0.0%N/A0.019% 5/16/2025 PharVision Advisers LLC14,375$186K0.3%N/A0.026% 5/16/2025 Millennium Management LLC310,391$4.01M0.0%-51.2%0.552% 5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.33,857$438K0.0%+3.3%0.060% 5/16/2025 Invenomic Capital Management LP241,707$3.13M0.2%N/A0.430% 5/16/2025 Jacobs Levy Equity Management Inc.201,182$2.60M0.0%-55.8%0.358% 5/16/2025 AQR Capital Management LLC149,128$1.93M0.0%+86.2%0.265% 5/15/2025 Cubist Systematic Strategies LLC310,805$4.02M0.0%N/A0.552% 5/15/2025 Royal Bank of Canada283,138$3.66M0.0%+10.7%0.503% 5/15/2025 Quarry LP4,574$59K0.0%N/A0.008% 5/15/2025 Trexquant Investment LP193,365$2.50M0.0%+1,380.1%0.344% 5/15/2025 MYDA Advisors LLC51,000$659K0.1%+30.8%0.091% 5/14/2025Keeley Teton Advisors LLC77,510$1.00M0.1%-1.2%0.138% 5/14/2025 Walleye Capital LLC27,855$360K0.0%N/A0.050% 5/14/2025 Penn Capital Management Company LLC172,572$2.23M0.2%-69.6%0.307% 5/14/2025 Jump Financial LLC41,034$531K0.0%N/A0.073% 5/14/2025 T. Rowe Price Investment Management Inc.318,376$4.12M0.0%-74.8%0.566% 5/14/2025 Fuller & Thaler Asset Management Inc.273,182$3.53M0.0%+49.2%0.485% 5/14/2025 Quantbot Technologies LP59,256$766K0.0%+940.9%0.105% Crypto Income (almost instantly) (Ad)How would you like to collect a small percentage of the $4 billion changing hands daily in the crypto market? Depending on when you watch this new training, crypto income could be hitting your account as early as tonight!Watch this short video5/13/2025 Algert Global LLC33,300$431K0.0%N/A0.059% 5/13/2025 Roubaix Capital LLC305,312$3.95M2.0%-9.3%0.543% 5/13/2025 Raymond James Financial Inc.230,799$2.98M0.0%+138.0%0.410% 5/13/2025 Tocqueville Asset Management L.P.89,903$1.16M0.0%-4.7%0.160% 5/13/2025 American Century Companies Inc.1,889,917$24.44M0.0%+8.2%3.359% 5/13/2025 Fox Run Management L.L.C.38,942$504K0.1%N/A0.069% 5/13/2025 Russell Investments Group Ltd.32,521$420K0.0%-47.6%0.058% 5/12/2025 Nuveen LLC210,583$2.72M0.0%N/A0.374% 5/12/2025 Virtu Financial LLC13,680$177K0.0%N/A0.024% 5/12/2025 Entropy Technologies LP24,616$318K0.0%N/A0.044% (Data available from 1/1/2016 forward) OEC Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of OEC shares? During the previous two years, 210 institutional investors and hedge funds held shares of Orion. The most heavily invested institutionals were Pzena Investment Management LLC ($48.02M), Dimensional Fund Advisors LP ($34.53M), Brown Advisory Inc. ($25.92M), Harvey Partners LLC ($25.44M), Minneapolis Portfolio Management Group LLC ($25.17M), State Street Corp ($23.39M), and Inherent Group LP ($22.88M).Learn more on Orion's institutional investors. What percentage of Orion's stock is owned by institutional investors? 94.33% of Orion's stock is owned by institutional investors. Learn more on OEC's institutional investor holdings. Which institutional investors have been buying Orion's stock? Of the 172 institutional investors that purchased Orion's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Pzena Investment Management LLC ($2.39M), William Blair Investment Management LLC ($1.01M), Grizzlyrock Capital LLC ($863.05K), Victory Capital Management Inc. ($848.99K), American Century Companies Inc. ($813.87K), EVR Research LP ($800K), and Schroder Investment Management Group ($619.33K). How much institutional buying is happening at Orion? Institutional investors have bought a total of 15,383,843 shares in the last 24 months. This purchase volume represents approximately $219.79M in transactions. Which of Orion's major shareholders have been selling company stock? Of the 80 institutional investors that sold Orion's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($2.86M), William Blair Investment Management LLC ($2.85M), FMR LLC ($1.96M), Penn Capital Management Company LLC ($395.73K), Harspring Capital Management LLC ($345K), Pzena Investment Management LLC ($335.70K), and Millennium Management LLC ($325.13K). How much institutional selling is happening at Orion? Institutional investors have sold a total of 12,828,615 shares in the last 24 months. This volume of shares sold represents approximately $180.65M in transactions. Related Companies Cabot Major Shareholders Chemours Major Shareholders Ingevity Major Shareholders CVR Partners Major Shareholders Braskem Major Shareholders Ecovyst Major Shareholders ASP Isotopes Major Shareholders Westlake Chemical Partners Major Shareholders Tronox Major Shareholders AdvanSix Major Shareholders This page (NYSE:OEC) was last updated on 9/4/2025 by MarketBeat.com Staff From Our PartnersCrypto Income (almost instantly)How would you like to collect a small percentage of the $4 billion changing hands daily in the crypto market? ...Awesomely, LLC | SponsoredRetire Comfortably with These New Monthly Income ETFs?Too many retirees lie awake at night, worried their savings won’t last. Traditional advice and tiny returns ju...Investors Alley | SponsoredThis Massive Market is Ripe for Disruption by this NasdaqFanatics Hit $31B. 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