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White Mountains Insurance
WTM

Overview Fund Activity

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
–

Top Buyers

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

Top Sellers

1
First Trust Advisors
First Trust Advisors
Illinois
$10.2M
2
Select Equity Group
Select Equity Group
New York
$32.1M
3
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management
California
$181M
4
APF
Alaska Permanent Fund
Alaska
$0
5
Morgan Stanley
Morgan Stanley
New York
$296M
Name Holding Trade Value Shares
Change 		Shares
Change %
LG
101
Leuthold Group
Minnesota
$2.09M -$41.3K -23 -2%
Treasurer of the State of North Carolina
102
Treasurer of the State of North Carolina
North Carolina
$2.09M +$64.7K +36 +3%
AllianceBernstein
103
AllianceBernstein
Tennessee
$2.02M -$50.3K -28 -2%
Janus Henderson Group
104
Janus Henderson Group
United Kingdom
$2.01M – – –
AGP
105
Autumn Glory Partners
Texas
$1.94M – – –
State of New Jersey Common Pension Fund D
106
State of New Jersey Common Pension Fund D
New Jersey
$1.88M -$44.9K -25 -2%
OBAM
107
ODDO BHF Asset Management
France
$1.73M -$46.7K -26 -3%
GAM
108
Gotham Asset Management
New York
$1.72M +$1.72M +960 New
OSAM
109
O'Shaughnessy Asset Management
Connecticut
$1.69M -$212K -118 -11%
PFSRSONJ
110
Police & Firemen's Retirement System of New Jersey
New Jersey
$1.68M +$89.8K +50 +6%
BAM
111
Brave Asset Management
New Jersey
$1.66M – – –
Ensign Peak Advisors
112
Ensign Peak Advisors
Utah
$1.62M -$180K -100 -10%
SFA
113
Sequoia Financial Advisors
Ohio
$1.49M +$7.18K +4 +0.5%
Ohio Public Employees Retirement System (OPERS)
114
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.45M +$28.7K +16 +2%
ET
115
Equitable Trust
Tennessee
$1.41M +$420K +234 +42%
EI
116
Ethic Inc
New York
$1.39M +$337K +189 +32%
CAPTRUST Financial Advisors
117
CAPTRUST Financial Advisors
North Carolina
$1.36M -$233K -130 -15%
ASRS
118
Arizona State Retirement System
Arizona
$1.35M +$25.1K +14 +2%
Mariner
119
Mariner
Kansas
$1.33M +$39.5K +22 +3%
Nisa Investment Advisors
120
Nisa Investment Advisors
Missouri
$1.31M +$1.8K +1 +0.1%
RFC
121
Regions Financial Corp
Alabama
$1.18M +$194K +108 +20%
PAS
122
Park Avenue Securities
New York
$1.14M +$1.14M +637 New
P
123
&Partners
Tennessee
$1.14M +$433K +241 +61%
MPPLM
124
Midwest Professional Planners Ltd (MPPL)
Wisconsin
$1.13M +$64.6K +36 +6%
Luther King Capital Management (LKCM)
125
Luther King Capital Management (LKCM)
Texas
$1.08M -$18K -10 -2%
3 4
5
6 7