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

CORE LABORATORIES INC

197 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·197 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$535M
visible holders
Holders
197
filers reporting
Concentration
30.63%
ARIEL INVESTMENTS, LLC #1
top holder share
AI Holders Summary · Q2 2026

197 institutions reported CLB in Q2 2026. ARIEL INVESTMENTS, LLC leads at 30.6% 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
CWA Asset Management Group, LLC
CIK 0001667134
$20M1.8M0.62%Q2 2026
07
T. Rowe Price Investment Management, Inc.
CIK 0001897612
$19M1.1M0.01%Q1 2026
08
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$19M1.6M0.00%Q2 2026
09
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$18M1.5M0.00%Q2 2026
10
SCHRODER INVESTMENT MANAGEMENT GROUP
CIK 0001086619
$17M1.5M0.01%Q2 2026
11
Vanguard Portfolio Management
CIK 0002100121· Index
$15M1.3M0.00%Q2 2026
12
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$14M1.2M0.00%Q2 2026
13
GENDELL JEFFREY L
CIK 0001056581
$13M1.1M0.11%Q2 2026
14
HEARTLAND ADVISORS INC
CIK 0000937394
$12M1.1M0.55%Q2 2026
15
GOLDMAN SACHS GROUP INC
CIK 0000886982
$9M752K0.00%Q2 2026
16
EVERGREEN CAPITAL MANAGEMENT LLC
CIK 0001260824
$8M670K0.14%Q2 2026
17
MORGAN STANLEY
CIK 0000895421
$8M656K0.00%Q2 2026
18
NORTHERN TRUST CORP
CIK 0000073124· Index
$7M608K0.00%Q2 2026
19
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$7M565K0.00%Q2 2026
20
UBS Group AG
CIK 0001610520
$5M462K0.00%Q2 2026
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Insiders at CORE LABORATORIES INC
Tattoli Mark DamianTeo Sow HangBruno LawrenceMurray KatherineCarnes Martha Z.Martinovich Robert FTemeng KwakuKlingensmith Harvey Robert