DOSSIER · 13F Holders · Q2 2026Energy · Oil & Gas Field Services, NEC
CLB

CORE LABORATORIES INC

194 institutions still hold CORE LABORATORIES INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 21867A105·Oil & Gas Field Services, NEC·194 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$519M
visible holders
Holders
194
filers reporting
Concentration
31.60%
ARIEL INVESTMENTS, LLC #1
top holder share
AI Holders Summary · Q2 2026

194 institutions reported CLB in Q2 2026. ARIEL INVESTMENTS, LLC leads at 31.6% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
ARIEL INVESTMENTS, LLC
CIK 0000936753
$164M14.1M1.64%Q2 2026
02
BlackRock, Inc.
CIK 0002012383
$87M7.5M0.00%Q2 2026
03
DISCIPLINED GROWTH INVESTORS INC /MN
CIK 0001050442
$35M3.0M0.60%Q2 2026
04
EARNEST PARTNERS LLC
CIK 0001102578
$34M2.9M0.12%Q2 2026
05
STATE STREET CORP
CIK 0000093751
$25M2.2M0.00%Q2 2026
06
T. Rowe Price Investment Management, Inc.
CIK 0001897612
$19M1.1M0.01%Q1 2026
07
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$19M1.6M0.00%Q2 2026
08
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$18M1.5M0.00%Q2 2026
09
SCHRODER INVESTMENT MANAGEMENT GROUP
CIK 0001086619
$17M1.5M0.01%Q2 2026
10
Vanguard Portfolio Management
CIK 0002100121· Index
$15M1.3M0.00%Q2 2026
11
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$14M1.2M0.00%Q2 2026
12
GENDELL JEFFREY L
CIK 0001056581
$13M1.1M0.11%Q2 2026
13
HEARTLAND ADVISORS INC
CIK 0000937394
$12M1.1M0.55%Q2 2026
14
GOLDMAN SACHS GROUP INC
CIK 0000886982
$9M752K0.00%Q2 2026
15
MORGAN STANLEY
CIK 0000895421
$8M656K0.00%Q2 2026
16
NORTHERN TRUST CORP
CIK 0000073124· Index
$7M608K0.00%Q2 2026
17
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$7M565K0.00%Q2 2026
18
EVERGREEN CAPITAL MANAGEMENT LLC
CIK 0001260824
$6M669K0.11%Q3 2026
19
UBS Group AG
CIK 0001610520
$5M462K0.00%Q2 2026
20
Fisher Asset Management, LLC
CIK 0000850529
$5M448K0.00%Q2 2026
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174 more holders available. Log in →
Insiders at CORE LABORATORIES INC
Teo Sow Hang →Tattoli Mark Damian →Bruno Lawrence →Murray Katherine →Carnes Martha Z. →Martinovich Robert F →Temeng Kwaku →Klingensmith Harvey Robert →