CLB icon

Core Laboratories
CLB

Overview Fund Activity

190 hedge funds and large institutions have $601M invested in Core Laboratories in 2025 Q2 according to their latest regulatory filings, with 28 funds opening new positions, 69 increasing their positions, 59 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
190
Holders Change
-5
Holders Change %
-2.56%
% of All Funds
2.55%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
28
Increased
69
Reduced
59
Closed
31
Calls
$500K
Puts
$766K
Net Calls
-$266K
Net Calls Change
-$100K

Top Buyers

1
AI
1
Ariel Investments
Illinois
$149M
2
Millennium Management
2
Millennium Management
New York
$3.71M
3
State Street
3
State Street
Massachusetts
$24.9M
4
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$13.5M
5
GJL
5
Gendell Jeffrey L
$6.56M

Top Sellers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$51.6M
2
BTW
2
Boston Trust Walden
Massachusetts
$0
3
T. Rowe Price Investment Management
3
T. Rowe Price Investment Management
Maryland
$10.1M
4
RA
4
Royce & Associates
New York
$8.9M
5
FAM
5
Fred Alger Management
New York
$6.27M
Name Holding Trade Value Shares
Change 		Shares
Change %
AIM
76
Aigen Investment Management
New York
$351K +$351K +30,491 New
MIM
77
MetLife Investment Management
New Jersey
$336K – – –
SOADOR
78
State of Alaska Department of Revenue
Alaska
$321K +$22.7K +1,979 +8%
CCIA
79
Campbell & Co Investment Adviser
Maryland
$298K +$298K +25,831 New
JPMorgan Chase & Co
80
JPMorgan Chase & Co
New York
$297K -$210K -18,220 -41%
Mirae Asset Global ETFs Holdings
81
Mirae Asset Global ETFs Holdings
Hong Kong
$296K -$24.9K -2,161 -8%
Two Sigma Investments
82
Two Sigma Investments
New York
$293K -$308K -26,769 -51%
Franklin Resources
83
Franklin Resources
California
$274K -$43.7K -3,791 -14%
PIM
84
Platinum Investment Management
Australia
$263K +$32.8K +2,844 +14%
Mackenzie Financial
85
Mackenzie Financial
Ontario, Canada
$263K -$20.2K -1,755 -7%
IMRF
86
Illinois Municipal Retirement Fund
Illinois
$259K -$5.88K -510 -2%
LSERS
87
Louisiana State Employees Retirement System
Louisiana
$252K -$2.3K -200 -0.9%
CSS
88
Cubist Systematic Strategies
Connecticut
$250K +$250K +21,725 New
QCM
89
Quantinno Capital Management
New York
$242K +$242K +21,039 New
SEI Investments
90
SEI Investments
Pennsylvania
$231K -$2.33K -202 -1%
Janus Henderson Group
91
Janus Henderson Group
United Kingdom
$229K – – –
New York State Teachers Retirement System (NYSTRS)
92
New York State Teachers Retirement System (NYSTRS)
New York
$228K – – –
PNC Financial Services Group
93
PNC Financial Services Group
Pennsylvania
$216K -$37.3K -3,235 -15%
Manulife (Manufacturers Life Insurance)
94
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$207K +$12K +1,040 +6%
QT
95
Quantbot Technologies
New York
$202K +$156K +13,571 +344%
FRM
96
Fox Run Management
Connecticut
$202K +$202K +17,493 New
YCM
97
Yousif Capital Management
Michigan
$198K -$2.95K -256 -1%
Comerica Bank
98
Comerica Bank
Texas
$191K -$17.4K -1,512 -8%
COI
99
Connable Office Inc
Michigan
$189K – – –
BHCM
100
Brevan Howard Capital Management
Jersey
$189K +$189K +16,370 New
2 3
4
5 6