Core Laboratories Ownership | Who Owns Core Laboratories?


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Core Laboratories Ownership Summary


Core Laboratories is owned by 35.88% institutional investors, 1.24% insiders, and 62.88% retail investors. Ariel investments is the largest institutional shareholder, holding 28.99% of CLB shares. Ariel Fund Investor is the top mutual fund, with 13.34% of its assets in Core Laboratories shares.

CLB Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockCore Laboratories35.88%1.24%62.88%
SectorEnergy Stocks 147.73%15.16%-62.89%
IndustryOil & Gas Equipment & Services Stocks41.12%12.83%46.05%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Ariel investments13.77M28.99%$170.24M
Blackrock7.80M16.62%$158.22M
Blackrock funding, inc. /de7.15M15.38%$114.67M
Disciplined growth investors inc /mn5.97M12.57%$73.79M
Earnest partners3.22M6.93%$51.63M
Vanguard group3.08M6.62%$49.37M
State street1.98M4.16%$24.43M
Dimensional fund advisors lp1.23M2.64%$19.71M
Geode capital management1.11M2.40%$17.88M
T. rowe price investment management908.16K1.91%$11.22M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Ariel investments13.77M1.82%$170.24M
Disciplined growth investors inc /mn5.97M1.34%$73.79M
Archon capital management117.25K1.07%$1.88B
Cwa asset management group622.45K0.36%$9.98M
Bwm planning65.04K0.28%$1.04M
Earnest partners3.22M0.22%$51.63M
Gendell jeffrey l648.46K0.18%$10.39M
Ridgewood investments31.43K0.16%$388.52K
Pacific ridge capital partners44.42K0.16%$712.10K
Wintrust investments10.14K0.15%$175.00K

Top Buyers

HolderShares% AssetsChange
Ariel investments13.77M1.82%797.11K
Cwa asset management group622.45K0.36%622.45K
Goldman sachs group845.25K0.00%548.66K
Disciplined growth investors inc /mn5.97M1.34%528.98K
Renaissance183.40K0.00%149.22K

Top Sellers

HolderShares% AssetsChange
Congress asset management co /ma---1.69M
Boston trust walden---610.89K
Fred alger management---544.41K
Royce & associates lp206.72K0.03%-233.73K
Hrt financial lp126.06K0.01%-223.49K

New Positions

HolderShares% AssetsChangeValue
Cwa asset management group622.45K0.36%622.45K$9.98M
Archon capital management117.25K1.07%117.25K$1.88B
Norges bank110.33K0.00%110.33K$1.91M
Balyasny asset management50.86K0.00%50.86K$585.94K
Weiss asset management lp31.65K0.00%31.65K$391.18K

Sold Out

HolderChange
Tfc financial management-1.00
Frazier financial advisors-4.00
Jfs wealth advisors-6.00
Southstate-7.00
Caitong asset management-10.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2025100-48.19%16,685,248-67.44%350.31%46-50.54%33-54.79%
Sep 30, 202589-52.41%17,479,824-65.96%360.32%39-60.61%36-34.55%
Jun 30, 2025193-1.53%52,138,6322.56%1090.93%9729.33%59-23.38%
Mar 31, 20256-97.13%335,329-99.34%-0.01%2-97.94%4-94.37%
Dec 31, 202497-49.74%19,758,262-61.17%420.36%36-60.00%34-52.78%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Ariel Fund Investor6.21M13.34%-308.63K
iShares Core S&P Small-Cap ETF2.83M6.08%-294.59K
Ariel Appreciation Investor1.51M3.25%-
Vanguard US Total Market Shares ETF1.48M3.18%-
Disciplined Growth - Mid Cap Growth1.38M2.97%-90.43K
Harbor Small Cap Value Instl1.18M2.53%-61.88K
iShares Russell 2000 ETF1.12M2.41%1.12M
Congress Asset Mgt Small Cap Growth1.11M2.38%1.11M
Vanguard Total Stock Mkt Idx Inv1.07M2.29%-
T. Rowe Price US Smlr Cm Eq A USD892.90K1.90%-45.82K

Insider Transactions Trends


DateBuySell
2025 Q4--
2025 Q3--
2025 Q2--
2025 Q1--
2024 Q4--

CLB Ownership FAQ


Who Owns Core Laboratories?

Core Laboratories shareholders are primarily institutional investors at 35.88%, followed by 1.24% insiders and 62.88% retail investors. The average institutional ownership in Core Laboratories's industry, Oil & Gas Equipment & Services Stocks, is 41.12%, which Core Laboratories falls below.

Who owns the most shares of Core Laboratories?

Core Laboratories’s largest shareholders are Ariel investments (13.77M shares, 28.99%), Blackrock (7.8M shares, 16.62%), and Blackrock funding, inc. /de (7.15M shares, 15.38%). Together, they hold 61.00% of Core Laboratories’s total shares outstanding.

Does Blackrock own Core Laboratories?

Yes, BlackRock owns 16.62% of Core Laboratories, totaling 7.8M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 158.22M$. In the last quarter, BlackRock decreased its holdings by -181K shares, a -2.27% change.

Who is Core Laboratories’s biggest shareholder by percentage of total assets invested?

Ariel investments is Core Laboratories’s biggest shareholder by percentage of total assets invested, with 1.82% of its assets in 13.77M Core Laboratories shares, valued at 170.24M$.

Who is the top mutual fund holder of Core Laboratories shares?

Ariel Fund Investor is the top mutual fund holder of Core Laboratories shares, with 13.34% of its total shares outstanding invested in 6.21M Core Laboratories shares.

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