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White Mountains Insurance

322 hedge funds and large institutions have $4.17B invested in White Mountains Insurance in 2025 Q2 according to their latest regulatory filings, with 34 funds opening new positions, 103 increasing their positions, 110 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
322
Holders Change
+3
Holders Change %
+0.94%
% of All Funds
4.32%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.07%
New
34
Increased
103
Reduced
110
Closed
27
Calls
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Shares
Change %
Handelsbanken Fonder
126
Handelsbanken Fonder
Sweden
$1.08M
ANTB
127
AMG National Trust Bank
Colorado
$1.03M +$1.8K +1 +0.2%
Verition Fund Management
128
Verition Fund Management
Connecticut
$1.03M -$796K -443 -44%
BIP
129
Brandes Investment Partners
California
$1.02M +$98.8K +55 +11%
Fidelity Investments
130
Fidelity Investments
Massachusetts
$1.01M -$19.8K -11 -2%
QC
131
Quadrature Capital
United Kingdom
$983K +$456K +254 +86%
BOSSRA
132
B.O.S.S. Retirement Advisors
Utah
$957K +$957K +533 New
Manulife (Manufacturers Life Insurance)
133
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$941K -$57.5K -32 -6%
CPIG
134
Chicago Partners Investment Group
Illinois
$914K +$35.8K +20 +4%
KK
135
KLP Kapitalforvaltning
Norway
$907K
PIM
136
Parker Investment Management
California
$898K
HCM
137
Hengehold Capital Management
Ohio
$885K +$106K +59 +14%
RAM
138
Resona Asset Management
Japan
$875K +$28.7K +16 +3%
Mitsubishi UFJ Trust & Banking
139
Mitsubishi UFJ Trust & Banking
Japan
$857K -$594K -331 -41%
CSC
140
Cove Street Capital
California
$851K -$30.5K -17 -3%
FFA
141
Farther Finance Advisors
California
$840K +$136K +76 +19%
Janney Montgomery Scott
142
Janney Montgomery Scott
Pennsylvania
$801K +$59.3K +33 +8%
PNC Financial Services Group
143
PNC Financial Services Group
Pennsylvania
$779K -$8.98K -5 -1%
Franklin Resources
144
Franklin Resources
California
$779K -$55.7K -31 -7%
Bank of Montreal
145
Bank of Montreal
Ontario, Canada
$776K +$28.7K +16 +4%
SWM
146
Sendero Wealth Management
Texas
$752K
Osaic Holdings
147
Osaic Holdings
Arizona
$741K +$21.3K +11 +3%
First Manhattan
148
First Manhattan
New York
$720K -$1.28M -714 -64%
Teacher Retirement System of Texas
149
Teacher Retirement System of Texas
Texas
$702K +$28.7K +16 +4%
Pathstone Holdings
150
Pathstone Holdings
New Jersey
$690K +$53.9K +30 +8%