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White Mountains Insurance
WTM

Overview Fund Activity

319 hedge funds and large institutions have $4.16B invested in White Mountains Insurance in 2025 Q2 according to their latest regulatory filings, with 34 funds opening new positions, 103 increasing their positions, 107 reducing their positions, and 27 closing their positions.

Holders
319
Holders Change
–
Holders Change %
0%
% of All Funds
4.28%
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
107
Closed
27
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Neuberger Berman Group
1
Neuberger Berman Group
New York
$150M
2
CB
2
Cooke & Bieler
Pennsylvania
$138M
3
BFS
3
Bradley Foster & Sargent
Connecticut
$9.92M
4
Jane Street
4
Jane Street
New York
$10.9M
5
HF
5
HRT Financial
New York
$9.13M

Top Sellers

1
First Trust Advisors
1
First Trust Advisors
Illinois
$10.2M
2
Select Equity Group
2
Select Equity Group
New York
$32.1M
3
Fuller & Thaler Asset Management
3
Fuller & Thaler Asset Management
California
$181M
4
APF
4
Alaska Permanent Fund
Alaska
$0
5
Morgan Stanley
5
Morgan Stanley
New York
$296M
Name Market Value Shares Shares
Change 		Shares
Change %
Handelsbanken Fonder
126
Handelsbanken Fonder
Sweden
$1.08M 600 – –
ANTB
127
AMG National Trust Bank
Colorado
$1.03M 575 +1 +0.2%
Verition Fund Management
128
Verition Fund Management
Connecticut
$1.03M 571 -443 -44%
BIP
129
Brandes Investment Partners
California
$1.02M 570 +55 +11%
Fidelity Investments
130
Fidelity Investments
Massachusetts
$1.01M 561 -11 -2%
QC
131
Quadrature Capital
United Kingdom
$983K 548 +254 +86%
BOSSRA
132
B.O.S.S. Retirement Advisors
Utah
$957K 533 +533 New
Manulife (Manufacturers Life Insurance)
133
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$941K 524 -32 -6%
CPIG
134
Chicago Partners Investment Group
Illinois
$914K 511 +20 +4%
KK
135
KLP Kapitalforvaltning
Norway
$907K 505 – –
PIM
136
Parker Investment Management
California
$898K 500 – –
HCM
137
Hengehold Capital Management
Ohio
$885K 493 +59 +14%
RAM
138
Resona Asset Management
Japan
$875K 487 +16 +3%
Mitsubishi UFJ Trust & Banking
139
Mitsubishi UFJ Trust & Banking
Japan
$857K 477 -331 -41%
CSC
140
Cove Street Capital
California
$851K 474 -17 -3%
FFA
141
Farther Finance Advisors
California
$840K 468 +76 +19%
Janney Montgomery Scott
142
Janney Montgomery Scott
Pennsylvania
$801K 446 +33 +8%
PNC Financial Services Group
143
PNC Financial Services Group
Pennsylvania
$779K 434 -5 -1%
Franklin Resources
144
Franklin Resources
California
$779K 434 -31 -7%
Bank of Montreal
145
Bank of Montreal
Ontario, Canada
$776K 432 +16 +4%
SWM
146
Sendero Wealth Management
Texas
$752K 419 – –
Osaic Holdings
147
Osaic Holdings
Arizona
$741K 382 +11 +3%
First Manhattan
148
First Manhattan
New York
$720K 401 -714 -64%
Teacher Retirement System of Texas
149
Teacher Retirement System of Texas
Texas
$702K 391 +16 +4%
Pathstone Holdings
150
Pathstone Holdings
New Jersey
$690K 384 +30 +8%
4 5
6
7 8