WTM icon

White Mountains Insurance
WTM

Overview Fund Activity

319 hedge funds and large institutions have $4.38B invested in White Mountains Insurance in 2025 Q1 according to their latest regulatory filings, with 28 funds opening new positions, 101 increasing their positions, 106 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
319
Holders Change
-3
Holders Change %
-0.93%
% of All Funds
4.33%
Holding in Top 10
7
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+16.67%
% of All Funds
0.1%
New
28
Increased
101
Reduced
106
Closed
27
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
FMI
Fiduciary Management Inc
Wisconsin
$138M
2
CB
Cooke & Bieler
Pennsylvania
$105M
3
Neuberger Berman Group
Neuberger Berman Group
New York
$110M
4
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
$120M
5
Victory Capital Management
Victory Capital Management
Texas
$31M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
$49M
2
Morgan Stanley
Morgan Stanley
New York
$329M
3
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management
California
$212M
4
RRAM
River Road Asset Management
Kentucky
$211M
5
KBC Group
KBC Group
Belgium
$241K
Name Holding Trade Value Shares
Change 		Shares
Change %
AGP
101
Autumn Glory Partners
Texas
$2.08M – – –
State of New Jersey Common Pension Fund D
102
State of New Jersey Common Pension Fund D
New Jersey
$2.07M -$86.7K -45 -4%
OSAM
103
O'Shaughnessy Asset Management
Connecticut
$2.04M -$15.4K -8 -0.8%
Verition Fund Management
104
Verition Fund Management
Connecticut
$1.95M +$691K +359 +55%
Ensign Peak Advisors
105
Ensign Peak Advisors
Utah
$1.93M – – –
OBAM
106
ODDO BHF Asset Management
France
$1.91M -$17.3K -9 -0.9%
Millennium Management
107
Millennium Management
New York
$1.84M -$2.78M -1,445 -60%
BAM
108
Brave Asset Management
New Jersey
$1.78M – – –
CAPTRUST Financial Advisors
109
CAPTRUST Financial Advisors
North Carolina
$1.71M +$562K +292 +49%
PFSRSONJ
110
Police & Firemen's Retirement System of New Jersey
New Jersey
$1.7M -$46.2K -24 -3%
Susquehanna International Group
111
Susquehanna International Group
Pennsylvania
$1.68M +$736K +382 +78%
Citigroup
112
Citigroup
New York
$1.67M +$208K +108 +14%
SFA
113
Sequoia Financial Advisors
Ohio
$1.59M -$175K -91 -10%
Mitsubishi UFJ Trust & Banking
114
Mitsubishi UFJ Trust & Banking
Japan
$1.56M -$786K -408 -34%
SSA
115
Schonfeld Strategic Advisors
New York
$1.54M +$193K +100 +14%
Ohio Public Employees Retirement System (OPERS)
116
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.53M -$185K -96 -11%
NRD
117
Nebula Research & Development
New York
$1.47M +$1.47M +762 New
ASRS
118
Arizona State Retirement System
Arizona
$1.42M -$17.3K -9 -1%
Nisa Investment Advisors
119
Nisa Investment Advisors
Missouri
$1.41M -$713K -370 -34%
Mariner
120
Mariner
Kansas
$1.39M -$202K -105 -13%
VRS
121
Virginia Retirement Systems
Virginia
$1.35M +$1.35M +700 New
SG Americas Securities
122
SG Americas Securities
New York
$1.33M -$1.52M -787 -53%
ECM
123
ExodusPoint Capital Management
New York
$1.31M +$539K +280 +70%
OIAM
124
OFI Invest Asset Management
France
$1.31M +$57.1K +32 +5%
Corient Private Wealth
125
Corient Private Wealth
Florida
$1.31M +$79K +41 +6%
3 4
5
6 7