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Core Laboratories
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Overview Fund Activity

188 hedge funds and large institutions have $600M invested in Core Laboratories in 2025 Q2 according to their latest regulatory filings, with 28 funds opening new positions, 68 increasing their positions, 58 reducing their positions, and 30 closing their positions.

Holders
188
Holders Change
-7
Holders Change %
-3.59%
% of All Funds
2.52%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
28
Increased
68
Reduced
58
Closed
30
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 Market Value Shares Shares
Change 		Shares
Change %
MCM
176
Manchester Capital Management
Vermont
$623 54 +54 New
CPG
177
Cornerstone Planning Group
New Jersey
$526 49 +49 New
FMII
178
Farmers & Merchants Investments Inc
Nebraska
$461 40 – –
S
179
Sachetta
Massachusetts
$369 32 – –
SPIA
180
Steward Partners Investment Advisory
New York
$334 29 – –
WCM
181
WealthTrak Capital Management
Virginia
$288 25 +25 New
KG
182
Kilter Group
New York
$242 21 +21 New
PFBT
183
Parkside Financial Bank & Trust
Missouri
$127 11 +2 +22%
HI
184
Harbour Investments
Wisconsin
$127 11 +3 +38%
AWM
185
Abound Wealth Management
Tennessee
$93 8 -2 -20%
GC
186
Garde Capital
Washington
$58 5 – –
CVM
187
Cheviot Value Management
California
$41 4 – –
BTW
188
Boston Trust Walden
Massachusetts
– – -610,889 Closed
QEI
189
QSV Equity Investors
Illinois
– – -88,455 Closed
First Trust Advisors
190
First Trust Advisors
Illinois
– – -71,364 Closed
DFCM
191
Dark Forest Capital Management
Puerto Rico
– – -60,340 Closed
GCP
192
GSA Capital Partners
United Kingdom
– – -35,165 Closed
CF
193
Corebridge Financial
Texas
– – -24,516 Closed
QCG
194
Quadrant Capital Group
Ohio
– – -19,232 Closed
Natixis Advisors
195
Natixis Advisors
Massachusetts
– – -17,178 Closed
IIC
196
Integrated Investment Consultants
Michigan
– – -16,047 Closed
Pathstone Holdings
197
Pathstone Holdings
New Jersey
– – -15,169 Closed
FGP
198
Freestone Grove Partners
California
– – -13,406 Closed
Simplex Trading
199
Simplex Trading
Illinois
– – -12,946 Closed
EI
200
Ethic Inc
New York
– – -10,588 Closed
5 6 7
8
9