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White Mountains Insurance

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

New
Increased
Maintained
Reduced
Closed
Holders
318
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Luther King Capital Management (LKCM)
126
Luther King Capital Management (LKCM)
Texas
$1.17M
AI
127
Atria Investments
North Carolina
$1.17M
MAM
128
Martingale Asset Management
Massachusetts
$1.17M
Renaissance Technologies
129
Renaissance Technologies
New York
$1.16M
Handelsbanken Fonder
130
Handelsbanken Fonder
Sweden
$1.16M
MPPLM
131
Midwest Professional Planners Ltd (MPPL)
Wisconsin
$1.14M
EI
132
Ethic Inc
New York
$1.12M
Jane Street
133
Jane Street
New York
$1.11M
ANTB
134
AMG National Trust Bank
Colorado
$1.11M
Fidelity Investments
135
Fidelity Investments
Massachusetts
$1.1M
Manulife (Manufacturers Life Insurance)
136
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$1.07M
ET
137
Equitable Trust
Tennessee
$1.06M
RFC
138
Regions Financial Corp
Alabama
$1.06M
VOYA Investment Management
139
VOYA Investment Management
Georgia
$1.01M
BIP
140
Brandes Investment Partners
California
$992K
KK
141
KLP Kapitalforvaltning
Norway
$973K
PIM
142
Parker Investment Management
California
$963K
CSC
143
Cove Street Capital
California
$946K
STA
144
Summit Trail Advisors
New York
$936K
RAM
145
Resona Asset Management
Japan
$907K
Franklin Resources
146
Franklin Resources
California
$896K
CPIG
147
Chicago Partners Investment Group
Illinois
$877K
PNC Financial Services Group
148
PNC Financial Services Group
Pennsylvania
$845K
HCM
149
Hengehold Capital Management
Ohio
$836K
SWM
150
Sendero Wealth Management
Texas
$807K