Core Laboratories Ownership | Who Owns Core Laboratories?

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Core Laboratories Ownership Summary

Core Laboratories is owned by 115.50% institutional investors, 1.43% insiders. Ariel investments is the largest institutional shareholder, holding 30.55% of CLB shares. Ariel Fund Investor is the top mutual fund, with 14.05% of its assets in Core Laboratories shares.

CLB Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Core Laboratories	115.50%	1.43%	-16.93%
Sector	Energy Stocks	63.59%	15.64%	20.77%
Industry	Oil & Gas Equipment & Services Stocks	66.65%	15.50%	17.86%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Ariel investments	14.07M	30.55%	$163.97M
Blackrock	7.80M	16.62%	$158.22M
Blackrock funding, inc. /de	7.46M	16.19%	$86.91M
Vanguard group	3.08M	6.62%	$49.37M
Disciplined growth investors inc /mn	3.04M	6.60%	$35.44M
Earnest partners	2.94M	6.38%	$34.26M
State street	2.18M	4.72%	$25.36M
Cwa asset management group	1.76M	3.81%	$20.45M
Vanguard capital management	1.59M	3.45%	$18.53M
Dimensional fund advisors lp	1.55M	3.36%	$18.03M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Ariel investments	14.07M	1.64%	$163.97M
Archon capital management	178.70K	0.85%	$2.08M
Cwa asset management group	1.76M	0.62%	$20.45M
Disciplined growth investors inc /mn	3.04M	0.60%	$35.44M
Heartland advisors	1.06M	0.55%	$12.33M
Bwm planning	65.04K	0.18%	$757.66K
Ridgewood investments	31.43K	0.16%	$388.52K
Wintrust investments	10.14K	0.15%	$175.00K
Tejara capital	31.10K	0.15%	$362.28K
Scout investments	256.99K	0.14%	$5.21M

Top Buyers

Holder	Shares	% Assets	Change
Schroder investment management group	1.54M	0.01%	1.54M
Heartland advisors	1.06M	0.55%	908.31K
Ariel investments	14.07M	1.64%	904.56K
Evergreen capital management	669.51K	0.14%	669.51K
Sixth street partners management company	565.07K	0.00%	565.07K

Top Sellers

Holder	Shares	% Assets	Change
Disciplined growth investors inc /mn	3.04M	0.60%	-1.89M
Congress asset management co /ma	-	-	-1.69M
T. rowe price investment management	485.03K	0.00%	-618.86K
Boston trust walden	-	-	-610.89K
Fred alger management	-	-	-544.41K

New Positions

Holder	Shares	% Assets	Change	Value
Schroder investment management group	1.54M	0.01%	1.54M	$16.86M
Evergreen capital management	669.51K	0.14%	669.51K	$7.80M
Sixth street partners management company	565.07K	0.00%	565.07K	$6.58M
Norges bank	110.33K	0.00%	110.33K	$1.91M
Balyasny asset management	50.86K	0.00%	50.86K	$585.94K

Sold Out

Holder	Change
Tfc financial management	-1.00
Mai capital management	-4.00
Frazier financial advisors	-4.00
Southstate	-7.00
Ifp advisors	-8.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	187	-2.60%	53,212,394	5.30%	115	0.98%	86	-	71	22.41%
Mar 31, 2026	185	-1.07%	50,215,874	0.11%	107	0.93%	85	3.66%	54	-28.95%
Dec 31, 2025	100	-48.19%	16,685,248	-67.44%	35	0.31%	46	-50.54%	33	-54.79%
Sep 30, 2025	89	-52.41%	17,479,824	-65.96%	36	0.32%	39	-60.61%	36	-34.55%
Jun 30, 2025	193	-1.53%	52,138,632	2.56%	109	0.93%	97	29.33%	59	-23.38%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Ariel Fund Investor	6.47M	14.05%	1.06M
iShares Core S&P Small-Cap ETF	2.77M	6.02%	480.00
Vanguard US Total Market Shares ETF	1.48M	3.18%	-
Ariel Appreciation Investor	1.43M	3.10%	-83.84K
iShares Russell 2000 ETF	1.19M	2.59%	-21.12K
Harbor Small Cap Value Instl	1.12M	2.44%	-45.34K
Heartland Value Investor	1.10M	2.40%	198.28K
Congress Asset Mgt Small Cap Growth	1.11M	2.38%	1.11M
Schroder ISF Global Energy C Acc USD	1.09M	2.37%	261.88K
Vanguard MStar Total Stk Mkt Idx Invest	1.03M	2.25%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jul 31, 2026	Bruno Lawrence	Chairman and CEO	Buy	$53.90K

Insider Transactions Trends

Date	Buy	Sell
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 115.50%, followed by 1.43% insiders and -16.93% retail investors. The average institutional ownership in Core Laboratories's industry, Oil & Gas Equipment & Services Stocks, is 66.65%, which Core Laboratories exceeds.

Who owns the most shares of Core Laboratories?

Core Laboratories’s largest shareholders are Ariel investments (14.07M shares, 30.55%), Blackrock (7.8M shares, 16.62%), and Blackrock funding, inc. /de (7.46M shares, 16.19%). Together, they hold 63.37% 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 1.64% of its assets in 14.07M Core Laboratories shares, valued at 163.97M$.

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 14.05% of its total shares outstanding invested in 6.47M Core Laboratories shares.

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