White Mountains Insurance Group, Ltd.

NYSE:WTM Stock Report

Market Cap: US$4.9b

White Mountains Insurance Group Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of WTM?
Owner TypeNumber of SharesOwnership Percentage
State or Government1,0860.0429%
Individual Insiders76,4403.02%
General Public155,5816.14%
Institutions2,299,65190.8%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 70.47% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
9.9%
The Vanguard Group, Inc.
250,783US$485.1m-0.1%0.01%
6.66%
Eaton Vance Management
168,635US$326.2m0%0.07%
6.26%
Dimensional Fund Advisors LP
158,534US$306.6m-0.64%0.04%
4.83%
Fuller & Thaler Asset Management, Inc.
122,277US$236.5m-5.42%0.9%
4.67%
River Road Asset Management, LLC
118,206US$228.6m1.62%2.81%
4.55%
BlackRock, Inc.
115,123US$222.7m-1.14%no data
4.13%
Boston Partners Global Investors, Inc.
104,514US$202.2m-0.85%0.12%
3.26%
Wallace Capital Management, Inc.
82,646US$159.9m1.3%21.3%
2.76%
The London Company of Virginia, LLC
69,853US$135.1m5.11%0.71%
2.4%
Wellington Management Group LLP
60,675US$117.4m-13.1%0.02%
2.33%
T. Rowe Price Group, Inc.
59,127US$114.4m0%0.01%
2.17%
State Street Global Advisors, Inc.
54,877US$106.1m5.2%no data
1.95%
Fiduciary Management, Inc.
49,320US$95.4m-0.07%0.63%
1.57%
Geode Capital Management, LLC
39,844US$77.1m0.69%0.01%
1.52%
Managed Account Advisors LLC
38,609US$74.7m1.37%0.01%
1.51%
Reinhart Partners, LLC
38,272US$74.0m-2.79%2.75%
1.37%
Select Equity Group, L.P.
34,663US$67.0m-41.6%0.22%
1.31%
Neuberger Berman Investment Advisers LLC
33,110US$64.0m92.9%0.05%
1.3%
Lord, Abbett & Co. LLC
33,012US$63.9m7.95%0.19%
1.19%
Norges Bank Investment Management
30,106US$58.2m0%no data
1.14%
Cannell & Spears LLC
28,923US$55.9m-3.8%1.07%
1%
Charles Schwab Investment Management, Inc.
25,220US$48.8m0%0.01%
0.91%
Brown Advisory Incorporated
23,126US$44.7m1.43%0.05%
0.9%
George Rountree
22,729US$44.0m-4.48%no data
0.89%
Allspring Global Investments, LLC
22,555US$43.6m44%0.06%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/01/30 13:35
End of Day Share Price 2025/01/30 00:00
Earnings2024/09/30
Annual Earnings2023/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more here.

Analysis Model and Snowflake

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Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on .

Analyst Sources

White Mountains Insurance Group, Ltd. is covered by 3 analysts. 0 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Robert GlasspiegelJanney Montgomery Scott LLC
Daniel SchlemmerMacquarie Research
Jim RyanMorningstar Inc.