Core Laboratories (CLB) Institutional Ownership $12.46 +0.68 (+5.73%) Closing price 09/4/2025 03:59 PM EasternExtended Trading$12.48 +0.02 (+0.12%) As of 09/4/2025 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 ForecastsChartCompetitorsDividendEarningsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Core Laboratories (NYSE:CLB)CurrentInstitutional OwnershipPercentage97.81%Number ofInstitutional Buyers(last 12 months)103TotalInstitutional Inflows(last 12 months)$140.82MNumber ofInstitutional Sellers(last 12 months)74TotalInstitutional Outflows(last 12 months)$48.30M Get CLB Insider Trade Alerts Want to know when executives and insiders are buying or selling Core Laboratories stock? 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Skip Chart & View Institutional Buying and Selling Data CLB Institutional Buying and Selling by Quarter Core Laboratories Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/27/2025 Squarepoint Ops LLC94,163$1.09M0.0%-35.8%0.201% 8/16/2025 Public Sector Pension Investment Board159,437$1.84M0.0%+7.4%0.340% 8/15/2025 Tower Research Capital LLC TRC 7,333$84K0.0%+400.9%0.016% 8/15/2025 Captrust Financial Advisors37,401$431K0.0%+11.8%0.080% 8/15/2025 Gendell Jeffrey L569,471$6.56M0.2%+24.6%1.214% 8/15/2025 Brevan Howard Capital Management LP16,370$189K0.0%N/A0.035% 8/15/2025 Balyasny Asset Management L.P.50,863$586K0.0%N/A0.108% 8/15/2025 Bank of America Corp DE231,813$2.67M0.0%+37.6%0.494% 8/15/2025 Ameriprise Financial Inc.194,410$2.24M0.0%+7.5%0.415% 8/14/2025 Jane Street Group LLC54,343$626K0.0%-37.3%0.116% Get the Latest News and Ratings for CLB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Core Laboratories and its competitors with MarketBeat's FREE daily newsletter. 8/14/2025 Disciplined Growth Investors Inc. MN5,440,884$62.68M1.2%-0.9%11.604% 8/14/2025 Raymond James Financial Inc.221,465$2.55M0.0%+14.2%0.472% 8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.25,732$296K0.0%-7.7%0.055% 8/14/2025 The Manufacturers Life Insurance Company 17,932$207K0.0%+6.2%0.038% 8/14/2025 Squarepoint Ops LLC94,163$1.09M0.0%-35.8%0.201% 8/14/2025 Sei Investments Co.20,093$231K0.0%N/A0.043% 8/14/2025 Ariel Investments LLC12,976,463$149.49M1.7%+25.5%27.674% 8/14/2025 WINTON GROUP Ltd95,211$1.10M0.1%+25.7%0.203% 8/14/2025 Cerity Partners LLC10,127$117K0.0%-23.4%0.022% 8/13/2025 Amundi10,419$120K0.0%-60.4%0.022% 8/13/2025 Invesco Ltd.229,668$2.65M0.0%-1.8%0.490% 8/13/2025 Quantbot Technologies LP17,520$202K0.0%+343.7%0.037% 8/13/2025 Fisher Asset Management LLC867,726$10.00M0.0%-14.2%1.851% 8/13/2025 Russell Investments Group Ltd.196,992$2.27M0.0%+29.6%0.420% 8/12/2025 XTX Topco Ltd48,508$559K0.0%+369.1%0.103% 8/12/2025 Prudential Financial Inc.49,598$571K0.0%+5.5%0.106% 8/12/2025 American Century Companies Inc.133,033$1.53M0.0%+14.3%0.284% 8/12/2025 Rhumbline Advisers140,221$1.62M0.0%+1.2%0.299% 8/12/2025 Franklin Resources Inc.23,768$274K0.0%-13.8%0.051% 8/12/2025 JPMorgan Chase & Co.25,742$297K0.0%-41.4%0.055% 8/12/2025 Swiss National Bank89,200$1.03M0.0%-2.9%0.190% 8/11/2025 Raiffeisen Bank International AG60,000$682K0.0%-42.8%0.128% 8/8/2025 Intech Investment Management LLC41,703$480K0.0%-11.6%0.089% 8/8/2025 Creative Planning56,514$651K0.0%+79.3%0.121% 8/8/2025 Advisors Capital Management LLC275,063$3.17M0.0%+15.2%0.587% 8/8/2025 Geode Capital Management LLC1,114,560$12.84M0.0%+3.0%2.377% 8/8/2025 PNC Financial Services Group Inc.18,740$216K0.0%-14.7%0.040% 8/7/2025 Campbell & CO Investment Adviser LLC25,831$298K0.0%N/A0.055% 8/6/2025 Fox Run Management L.L.C.17,493$202K0.0%N/A0.037% 8/6/2025 Moors & Cabot Inc.73,954$852K0.0%+5.3%0.158% 8/4/2025 Assetmark Inc.7,530$87K0.0%+160.8%0.016% 8/4/2025 Arkadios Wealth Advisors84,896$978K0.0%N/A0.181% 8/1/2025 Envestnet Asset Management Inc.282,871$3.26M0.0%+11.4%0.603% 7/31/2025 Oppenheimer Asset Management Inc.62,951$725K0.0%-9.0%0.134% 7/31/2025 Ingalls & Snyder LLC10,000$115K0.0%N/A0.021% 7/31/2025 AlphaQuest LLC16,071$185K0.0%+504.4%0.034% 7/29/2025 Praxis Investment Management Inc.13,420$155K0.0%N/A0.029% 7/25/2025 Vanguard Personalized Indexing Management LLC12,684$146K0.0%N/A0.027% 7/21/2025 Exchange Capital Management Inc.35,489$409K0.1%-51.8%0.076% 7/21/2025 Platinum Investment Management Ltd.22,869$263K0.0%+14.2%0.049% 7/16/2025 State of Alaska Department of Revenue27,926$321K0.0%+7.6%0.060% 7/14/2025 GAMMA Investing LLC2,199$25K0.0%-52.0%0.005% 7/11/2025 Farther Finance Advisors LLC3,869$45K0.0%-83.8%0.008% 6/27/2025 Goldman Sachs Group Inc.193,939$2.91M0.0%-24.0%0.414% 6/18/2025 Voya Investment Management LLC13,794$207K0.0%-8.4%0.029% 5/29/2025 Rhumbline Advisers138,610$2.08M0.0%+1.7%0.296% 5/27/2025 Advisors Capital Management LLC238,867$3.58M0.1%+3.3%0.509% 5/19/2025 Jane Street Group LLC86,663$1.30M0.0%-22.2%0.185% 5/16/2025 Fred Alger Management LLC736,853$11.05M0.1%+32.4%1.572% 5/16/2025 Goldman Sachs Group Inc.193,939$2.91M0.0%-24.0%0.414% 5/16/2025 Jones Financial Companies Lllp1,740$26K0.0%-89.4%0.004% 5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.27,893$418K0.0%+4.4%0.059% 5/16/2025 Ariel Investments LLC10,342,025$155.03M1.8%+7.4%22.059% 5/16/2025 Amundi26,279$394K0.0%-20.3%0.056% 5/15/2025 Trexquant Investment LP128,037$1.92M0.0%+24.4%0.273% 5/15/2025 Earnest Partners LLC3,630,279$54.42M0.3%-1.5%7.743% 5/14/2025 Comerica Bank18,133$272K0.0%-4.6%0.039% 5/14/2025 Hotchkis & Wiley Capital Management LLC400,790$6.01M0.0%N/A0.855% 5/14/2025 AlphaQuest LLC2,659$40K0.0%+265,800.0%0.006% 5/14/2025 Integrated Investment Consultants LLC16,047$241K0.0%+58.0%0.034% 5/14/2025 T. Rowe Price Investment Management Inc.1,098,628$16.47M0.0%-5.2%2.343% 5/14/2025 Quantbot Technologies LP3,949$59K0.0%-52.9%0.008% 5/14/2025 QSV Equity Investors LLC88,455$1.33M1.4%+49.3%0.189% 5/13/2025 American Century Companies Inc.116,356$1.74M0.0%+20.7%0.248% 5/13/2025 Russell Investments Group Ltd.152,043$2.28M0.0%-28.6%0.324% 5/12/2025 Public Sector Pension Investment Board148,476$2.23M0.0%+26.9%0.317% 5/12/2025 Nuveen LLC171,636$2.57M0.0%N/A0.366% 5/12/2025 Invesco Ltd.233,893$3.51M0.0%-7.3%0.499% 5/12/2025 Maryland State Retirement & Pension System13,665$205K0.0%-13.7%0.029% 5/9/2025 Deutsche Bank AG42,207$633K0.0%-8.9%0.090% 5/9/2025 Charles Schwab Investment Management Inc.497,990$7.47M0.0%-0.3%1.062% 5/9/2025 Vanguard Group Inc.5,416,618$81.20M0.0%-3.1%11.553% 5/9/2025 Raiffeisen Bank International AG104,977$1.61M0.0%+5.0%0.224% 5/8/2025 Moors & Cabot Inc.70,259$1.05M0.1%-2.2%0.150% 5/8/2025 US Bancorp DE6,873$103K0.0%-31.7%0.015% 5/8/2025 Natixis Advisors LLC17,178$257K0.0%N/A0.037% 5/8/2025 XTX Topco Ltd10,340$155K0.0%N/A0.022% 5/7/2025 Mackenzie Financial Corp24,556$368K0.0%+5.0%0.052% 5/7/2025 Ridgewood Investments LLC33,486$502K0.2%+2.7%0.071% 5/7/2025 Integrated Investment Consultants LLC16,047$241K0.0%+58.0%0.034% 5/6/2025 Assetmark Inc.2,887$43K0.0%+92.5%0.006% 5/6/2025 Royce & Associates LP971,187$14.56M0.2%+0.2%2.072% 5/2/2025 Signaturefd LLC3,993$60K0.0%-37.7%0.009% 5/1/2025 Rice Hall James & Associates LLC193,798$2.91M0.2%+71.2%0.415% 5/1/2025 CWM LLC2,058$31K0.0%-46.0%0.004% 4/30/2025 Cerity Partners LLC13,229$198K0.0%-19.7%0.028% 4/29/2025 Envestnet Asset Management Inc.254,005$3.81M0.0%+1.3%0.544% 4/29/2025 Bank of New York Mellon Corp410,446$6.15M0.0%-8.8%0.879% 4/28/2025 Principal Financial Group Inc.233,829$3.51M0.0%+2.1%0.501% 4/23/2025 Oppenheimer Asset Management Inc.69,184$1.04M0.0%+19.8%0.148% (Data available from 1/1/2016 forward) CLB Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of CLB shares? During the previous two years, 175 institutional investors and hedge funds held shares of Core Laboratories. The most heavily invested institutionals were Ariel Investments LLC ($149.49M), Vanguard Group Inc. ($81.20M), Disciplined Growth Investors Inc. MN ($62.68M), Earnest Partners LLC ($54.42M), State Street Corp ($36.60M), Congress Asset Management Co. MA ($27.44M), and T. Rowe Price Investment Management Inc. ($16.47M).Learn more on Core Laboratories' institutional investors. What percentage of Core Laboratories' stock is owned by institutional investors? 97.81% of Core Laboratories' stock is owned by institutional investors. Learn more on CLB's institutional investor holdings. Which institutional investors have been buying Core Laboratories' stock? Of the 139 institutional investors that purchased Core Laboratories' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Ariel Investments LLC ($5.18M), Disciplined Growth Investors Inc. MN ($4.84M), Raymond James Financial Inc. ($808.67K), Congress Asset Management Co. MA ($636.49K), Fisher Asset Management LLC ($428.88K), Hotchkis & Wiley Capital Management LLC ($400.79K), and Gendell Jeffrey L ($364.37K). How much institutional buying is happening at Core Laboratories? Institutional investors have bought a total of 9,357,356 shares in the last 24 months. This purchase volume represents approximately $140.82M in transactions. Which of Core Laboratories' major shareholders have been selling company stock? Of the 74 institutional investors that sold Core Laboratories' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Ariel Investments LLC ($412.69K), Ameriprise Financial Inc. ($221.07K), Vanguard Group Inc. ($202.72K), Fisher Asset Management LLC ($192.84K), Boston Trust Walden Corp ($135.37K), Earnest Partners LLC ($126.44K), and Bank of America Corp DE ($124.82K). How much institutional selling is happening at Core Laboratories? Institutional investors have sold a total of 3,006,949 shares in the last 24 months. This volume of shares sold represents approximately $48.30M in transactions. 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