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Core Laboratories (CLB) Institutional Ownership

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$12.19 -0.24 (-1.95%)
As of 09:36 AM Eastern
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Institutional Ownership Changes (13F Filings) for Core Laboratories (NYSE:CLB)

Current
Institutional Ownership
Percentage
97.81%
Number of
Institutional Buyers
(last 12 months)
93
Total
Institutional Inflows
(last 12 months)
$211.05M
Number of
Institutional Sellers
(last 12 months)
69
Total
Institutional Outflows
(last 12 months)
$65.83M
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CLB Institutional Buying and Selling by Quarter

Core Laboratories Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/12/2026Heartland Advisors Inc.1,058,311$12.33M0.5%N/A2.307%
8/11/2026Advisors Capital Management LLC237,398$2.77M0.0%N/A0.517%
8/11/2026Tejara Capital Ltd31,097$362K0.1%N/A0.068%
8/7/2026 BlackRock Inc.7,460,118$86.91M0.0%N/A16.258%
8/7/2026 Deutsche Bank AG47,660$555K0.0%N/A0.104%
8/7/2026 Rice Hall James & Associates LLC101,648$1.18M0.1%N/A0.222%
8/7/2026 Old West Investment Management LLC59,910$698K0.1%N/A0.131%
8/6/2026 Bank of New York Mellon Corp401,283$4.68M0.0%N/A0.875%
8/3/2026 Oppenheimer Asset Management Inc.47,664$555K0.0%N/A0.104%
7/7/2026 GAMMA Investing LLC4,820$56K0.0%-24.0%0.010%
5/19/2026Bank of America Corp DE224,618$3.77M0.0%+59.6%0.487%
5/19/2026 Arkadios Wealth Advisors18,476$310K0.0%-10.8%0.040%
5/18/2026Amundi31,857$535K0.0%+63.0%0.069%
5/16/2026The Manufacturers Life Insurance Company 12,819$215K0.0%-9.3%0.028%
5/14/2026Renaissance Technologies LLC50,603$850K0.0%-72.4%0.110%
5/14/2026Sei Investments Co.16,843$283K0.0%-25.6%0.037%
5/14/2026 Lido Advisors LLC37,846$635K0.0%-7.8%0.082%
5/14/2026 State of Wyoming4,626$78K0.0%+267.7%0.010%
5/7/2026Dimensional Fund Advisors LP1,352,329$22.71M0.0%+10.0%2.934%
5/7/2026Heartland Advisors Inc.150,000$2.52M0.1%N/A0.325%
5/5/2026 Bank of New York Mellon Corp403,084$6.77M0.0%-2.1%0.875%
5/5/2026Illinois Municipal Retirement Fund25,642$431K0.0%+12.9%0.056%
5/4/2026 Principal Financial Group Inc.271,821$4.56M0.0%-7.4%0.590%
5/1/2026 Fifth Third Bancorp11,414$192K0.0%+2,397.6%0.025%
5/1/2026 Kornitzer Capital Management Inc. KS24,775$416K0.0%-8.2%0.054%
4/30/2026 Summit Securities Group LLC1,872$31K0.0%N/A0.004%
4/30/2026 Isthmus Partners LLC14,509$244K0.0%+16.2%0.032%
4/27/2026 New York State Teachers Retirement System7,703$129K0.0%-61.1%0.017%
4/22/2026 Sterling Capital Management LLC1,556$26K0.0%-42.5%0.003%
4/21/2026 Louisiana State Employees Retirement System20,600$346K0.0%N/A0.045%
4/16/2026 SG Americas Securities LLC11,851$199K0.0%-28.3%0.026%
3/9/2026Corient Private Wealth LLC13,639$219K0.0%N/A0.029%
2/19/2026T. Rowe Price Investment Management Inc.1,042,208$16.71M0.0%+14.8%2.238%
2/19/2026Invesco Ltd.204,194$3.27M0.0%-4.8%0.439%
2/19/2026Corient Private Wealth LLC13,500$216K0.0%N/A0.029%
2/18/2026State of Tennessee Department of Treasury10,601$170K0.0%-7.3%0.023%
2/18/2026XTX Topco Ltd54,273$870K0.0%+110.9%0.117%
2/18/2026 Old West Investment Management LLC38,223$613K0.1%N/A0.082%
2/18/2026Millennium Management LLC14,405$231K0.0%-92.6%0.031%
2/17/2026AQR Capital Management LLC49,818$799K0.0%+32.6%0.107%
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2/17/2026MAC Alpha Capital Management LP312,928$5.02M2.8%N/A0.672%
2/17/2026Trexquant Investment LP53,831$863K0.0%-78.1%0.116%
2/17/2026Amundi19,545$313K0.0%+39.9%0.042%
2/17/2026Price T Rowe Associates Inc. MD48,920$785K0.0%+12.9%0.105%
2/17/2026T. Rowe Price Investment Management Inc.938,904$15.05M0.0%+3.4%2.017%
2/17/2026 Russell Investments Group Ltd.155,496$2.49M0.0%-36.6%0.334%
2/17/2026Captrust Financial Advisors31,767$509K0.0%-13.3%0.068%
2/17/2026Royal Bank of Canada3,867$62K0.0%-95.0%0.008%
2/17/2026Aster Capital Management DIFC Ltd2,098$34K0.0%N/A0.005%
2/17/2026 Rice Hall James & Associates LLC99,293$1.59M0.1%-18.2%0.213%
2/16/2026Squarepoint Ops LLC30,514$489K0.0%+93.6%0.066%
2/16/2026 Panagora Asset Management Inc.11,366$182K0.0%N/A0.024%
2/16/2026Barclays PLC73,246$1.17M0.0%+9.5%0.157%
2/13/2026The Manufacturers Life Insurance Company 14,126$226K0.0%-14.7%0.030%
2/13/2026Archon Capital Management LLC117,252$1.88M1.1%N/A0.252%
2/13/2026Gendell Jeffrey L648,460$10.40M0.2%+13.9%1.393%
2/13/2026Public Sector Pension Investment Board161,149$2.58M0.0%-11.9%0.346%
2/13/2026 Arkadios Wealth Advisors20,718$332K0.0%-58.0%0.044%
2/13/2026Charles Schwab Investment Management Inc.737,550$11.82M0.0%+12.2%1.584%
2/13/2026 State Street Corp2,041,740$32.73M0.0%+3.3%4.385%
2/13/2026Van ECK Associates Corp352,023$5.64M0.0%+16.2%0.756%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC95,198$1.53M0.0%-7.7%0.204%
2/13/2026Wells Fargo & Company MN218,773$3.51M0.0%-15.8%0.470%
2/13/2026Platinum Investment Management Ltd.4,196$67K0.0%-82.3%0.009%
2/12/2026HRT Financial LP126,056$2.02M0.0%-63.9%0.271%
2/12/2026Brooklyn Investment Group11,226$183K0.0%-68.9%0.024%
2/12/2026Renaissance Technologies LLC183,400$2.94M0.0%+436.6%0.394%
2/12/2026Dimensional Fund Advisors LP1,229,611$19.71M0.0%+10.7%2.641%
2/12/2026 Campbell & CO Investment Adviser LLC20,479$328K0.0%+33.3%0.044%
2/12/2026Earnest Partners LLC3,221,043$51.63M0.2%-6.0%6.918%
2/12/2026Swiss National Bank92,500$1.48M0.0%+3.7%0.199%
2/12/2026Nuveen LLC153,515$2.46M0.0%-1.2%0.330%
2/11/2026 LPL Financial LLC12,390$199K0.0%-25.2%0.027%
2/11/2026Franklin Resources Inc.10,938$175K0.0%-43.5%0.023%
2/10/2026 Lido Advisors LLC41,030$656K0.0%-8.4%0.088%
2/10/2026Goldman Sachs Group Inc.845,251$13.55M0.0%+185.0%1.815%
2/10/2026 Moors & Cabot Inc.61,842$991K0.0%-15.8%0.133%
2/10/2026 Intech Investment Management LLC21,088$338K0.0%-52.6%0.045%
2/9/2026Geode Capital Management LLC1,114,935$17.88M0.0%+0.8%2.395%
2/9/2026 Terril Brothers Inc.18,975$304K0.1%N/A0.041%
2/9/2026Royce & Associates LP206,716$3.31M0.0%-53.1%0.444%
2/9/2026 Fisher Asset Management LLC774,979$12.42M0.0%-6.0%1.664%
2/9/2026Hantz Financial Services Inc.3,177$51K0.0%+124.7%0.007%
2/5/2026 Abacus Wealth Partners LLC14,513$233K0.0%N/A0.031%
2/4/2026Argos Wealth Advisors LLC16,119$258K0.1%N/A0.035%
2/4/2026Pacific Ridge Capital Partners LLC44,423$712K0.2%+4.7%0.095%
2/4/2026 Swiss Life Asset Management Ltd11,999$192K0.0%N/A0.026%
2/3/2026 Connable Office Inc.15,760$253K0.0%N/A0.034%
2/2/2026 Kornitzer Capital Management Inc. KS26,975$432K0.0%-13.4%0.058%
2/2/2026 Oppenheimer Asset Management Inc.42,475$681K0.0%-22.6%0.091%
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1/29/2026Comerica Bank11,181$179K0.0%-19.1%0.024%
1/29/2026 Cornerstone Investment Partners LLC11,381$182K0.0%N/A0.024%
1/29/2026UBS Group AG412,515$6.61M0.0%+32.9%0.886%
1/29/2026Teachers Retirement System of The State of Kentucky11,713$187K0.0%-12.2%0.025%
1/29/2026Vanguard Group Inc.3,079,882$49.37M0.0%+1.1%6.615%
1/28/2026 Arizona State Retirement System12,961$208K0.0%-6.6%0.028%
1/28/2026 Universal Beteiligungs und Servicegesellschaft mbH19,604$314K0.0%N/A0.042%
1/26/2026CWM LLC2,516$40K0.0%+36.1%0.005%
1/23/2026 Farther Finance Advisors LLC9,945$159K0.0%+154.2%0.021%
1/21/2026 Yousif Capital Management LLC12,316$197K0.0%-14.6%0.026%


CLB Institutional Ownership - Frequently Asked Questions

During the previous two years, 186 institutional investors and hedge funds held shares of Core Laboratories. The most heavily invested institutionals were Ariel Investments LLC ($149.49M), BlackRock Inc. ($86.91M), Disciplined Growth Investors Inc. MN ($73.79M), Earnest Partners LLC ($51.63M), Vanguard Group Inc. ($49.37M), State Street Corp ($32.73M), and Dimensional Fund Advisors LP ($22.71M).Learn more on Core Laboratories' institutional investors.

97.81% of Core Laboratories' stock is owned by institutional investors. Learn more on CLB's institutional investor holdings.

Of the 150 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: BlackRock Inc. ($7.46M), Disciplined Growth Investors Inc. MN ($5.37M), Ariel Investments LLC ($3.34M), Heartland Advisors Inc. ($1.21M), Raymond James Financial Inc. ($808.67K), CWA Asset Management Group LLC ($622.45K), and Goldman Sachs Group Inc. ($548.66K).

Institutional investors have bought a total of 16,853,074 shares in the last 24 months. This purchase volume represents approximately $211.05M in transactions.

Of the 68 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: Vanguard Group Inc. ($1.43M), Royce & Associates LP ($565.64K), Earnest Partners LLC ($381.99K), Millennium Management LLC ($307.68K), Fisher Asset Management LLC ($236.59K), HRT Financial LP ($223.49K), and Trexquant Investment LP ($191.67K).

Institutional investors have sold a total of 4,824,461 shares in the last 24 months. This volume of shares sold represents approximately $65.83M in transactions.


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Institutional ownership data for NYSE:CLB is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/12/2026. New 13F filings are added each quarter as they're published.
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