Core Laboratories CLB Institutional Ownership

NYSE CLB

$9.71 +0.00 (+0.00%)

As of: Sep 30, 2026 · 3:59 PM EDT

Institutions by Trading Activity

188 Institutions

Increased 91 48.4%

Unchanged 30 16.0%

Reduced 67 35.6%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

115.72%

▲+6.04 pp QoQ

Shares Held by Institutions

53.27Mn

of 46.03Mn outstanding

▲+6.61% QoQ

Shares Outstanding

46.03Mn

-7.24Mn held outside 13F filers

Institutional Investors

188

filed 13F for Jun 2026

▼-2 vs prior quarter

Net Shares Added (QoQ)

+3.30Mn

accumulated since last quarter

Value of Holdings

$516.14Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Core Laboratories Inc. /DE/ (NYSE:CLB) appears in 188 institutional 13F filings for the quarter ending June 2026.

Collectively, these holders controlled 115.7% of Core Laboratories's outstanding shares in June 2026, up from 109.7% in March 2026.
They increased total shares held in CLB by 6.61% quarter over quarter, and investors in Core Laboratories stayed flat from a year ago.
Of these 188 holders, 91 added to their stakes in Core Laboratories, 67 trimmed positions, and 30 made no changes.
Altogether, these fund groups held 53.27Mn shares in CLB by June 2026, up by 3.3Mn shares quarter on quarter, and up 5.29Mn shares year over year.
ARIEL INVESTMENTS, LLC leads ownership in CLB with 14.07Mn shares as of June 30, 2026, equal to 30.58% of outstanding shares.
The largest buyers of Core Laboratories for the quarter ending June 2026 were SCHRODER INVESTMENT MANAGEMENT GROUP (1.54Mn), HEARTLAND ADVISORS INC (908.31K), ARIEL INVESTMENTS, LLC (904.56K), EVERGREEN CAPITAL MANAGEMENT LLC (669.51K), Sixth Street Partners Management Company, L.P. (565.07K).
The largest sales of CLB for the quarter ending June 2026 came from DISCIPLINED GROWTH INVESTORS INC /MN (1.89Mn), T. Rowe Price Investment Management, Inc. (618.86K), AMERICAN CENTURY COMPANIES INC (352.4K), Fisher Asset Management, LLC (288.8K), Bank Of America Corp /De/ (137.33K).
Business Quant data shows the 10 biggest positions in Core Laboratories as of June 2026 are held by ARIEL INVESTMENTS, LLC (14.07Mn), BlackRock, Inc. (7.46Mn), DISCIPLINED GROWTH INVESTORS INC /MN (3.04Mn), EARNEST PARTNERS LLC (2.94Mn), State Street Corp (2.18Mn), CWA Asset Management Group, LLC (1.76Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.59Mn), DIMENSIONAL FUND ADVISORS LP (1.55Mn), SCHRODER INVESTMENT MANAGEMENT GROUP (1.54Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.28Mn).

Form 13F Holdings

188 Institutional Holders

Report period 30 Jun, 2026

Total shares held 53.27Mn

Of outstanding 115.72%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	ARIEL INVESTMENTS, LLC	0000936753	14,074,945	30.58%	▲904,557	+6.87%	$163.97Mn
2	BlackRock, Inc.	0002012383	7,460,118	16.21%	▲251,615	+3.49%	$86.91Mn
3	DISCIPLINED GROWTH INVESTORS INC /MN	0001050442	3,042,177	6.61%	▼1,894,938	-38.38%	$35.44Mn
4	EARNEST PARTNERS LLC	0001102578	2,941,004	6.39%	▼114,992	-3.76%	$34.26Mn
5	State Street Corp	0000093751	2,176,480	4.73%	▲115,943	+5.63%	$25.36Mn
6	CWA Asset Management Group, LLC	0001667134	1,755,085	3.81%	▲14,084	+0.81%	$20.45Mn
7	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,590,521	3.46%	▼29,342	-1.81%	$18.53Mn
8	DIMENSIONAL FUND ADVISORS LP	0000354204	1,548,203	3.36%	▲195,874	+14.48%	$18.03Mn
9	SCHRODER INVESTMENT MANAGEMENT GROUP	0001086619	1,543,638	3.35%	▲1,543,638	0.00%	$16.86Mn
10	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,275,421	2.77%	▲20,585	+1.64%	$14.86Mn
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,193,824	2.59%	▲55,866	+4.91%	$13.91Mn
12	GENDELL JEFFREY L	0001056581	1,090,973	2.37%	▲442,513	+68.24%	$12.71Mn
13	HEARTLAND ADVISORS INC	0000937394	1,058,311	2.30%	▲908,311	+605.54%	$12.33Mn
14	Goldman Sachs Group Inc	0000886982	751,643	1.63%	▼97,258	-11.46%	$8.76Mn
15	EVERGREEN CAPITAL MANAGEMENT LLC	0001260824	669,508	1.45%	▲669,508	0.00%	$7.80Mn
16	Morgan Stanley	0000895421	656,146	1.43%	▲209,364	+46.86%	$7.64Mn
17	Northern Trust Corp	0000073124	608,202	1.32%	▲42,916	+7.59%	$7.09Mn
18	Sixth Street Partners Management Company, L.P.	0001812095	565,065	1.23%	▲565,065	0.00%	$6.58Mn
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	565,065	1.23%	▼121,885	-17.74%	$6.58Mn
19	T. Rowe Price Investment Management, Inc.	0001897612	485,032	1.05%	▼618,863	-56.06%	$5.65K

Showing 1 to 20 of 188 holders