White Mountains Insurance Group Ltd
WTM2088.000USD
-2.900-0.14%
Close 12/24, 16:00（ET）Quotes delayed by 15 min
5.38BMarket Cap
38.46P/E TTM
More Details of White Mountains Insurance Group Ltd Company
White Mountains Insurance Group, Ltd. is a financial services holding company. Its segments include Ark/WM Outrigger, HG Global, Kudu and Bamboo. Ark/WM Outrigger segment includes Ark Insurance Holdings Limited and its subsidiaries (Ark) and Outrigger Re Ltd. The segment is engaged in specialty property and casualty insurance and reinsurance business that offers niche insurance and reinsurance products, including property, specialty, marine and energy, casualty and accident and health. HG Global segment is engaged in the municipal bond reinsurance business. Kudu segment provides capital solutions for boutique asset and wealth managers for a variety of purposes, including generational ownership transfers, management buyouts, acquisition and growth finance and legacy partner liquidity. Bamboo segment includes a capital-light, tech- and data-enabled insurance distribution platform, which provides homeowners' insurance and related products to the residential property market in California.
White Mountains Insurance Group Ltd Info
Ticker SymbolWTM
Company nameWhite Mountains Insurance Group Ltd
IPO dateOct 23, 1985
CEOCaffrey (Liam P)
Number of employees893
Security typeOrdinary Share
Fiscal year-endOct 23
Address23 South Main Street
CityHANOVER
Stock exchangeNASDAQ OMX NASDAQ Basic NYSE
CountryUnited States of America
Postal code03755
Phone16036402200
Websitehttps://www.whitemountains.com/
Ticker SymbolWTM
IPO dateOct 23, 1985
CEOCaffrey (Liam P)
Company Executives of White Mountains Insurance Group Ltd
Name
Name/Position
Position
Shareholding
Change
Mr. George Manning Rountree
Mr. George Manning Rountree
Chief Executive Officer, Director
Chief Executive Officer, Director
24.36K
+0.01%
Mr. Liam P. Caffrey
Mr. Liam P. Caffrey
Chief Executive Officer, Director
Chief Executive Officer, Director
4.24K
+0.05%
Mr. Weston M. Hicks
Mr. Weston M. Hicks
Independent Chairman of the Board
Independent Chairman of the Board
2.75K
+8.28%
Mr. David Allen Tanner, J.D.
Mr. David Allen Tanner, J.D.
Independent Deputy Chairman of the Board
Independent Deputy Chairman of the Board
2.10K
-0.19%
Ms. Mary C. Choksi
Ms. Mary C. Choksi
Independent Director
Independent Director
1.86K
+8.78%
Ms. Margaret Dillon
Ms. Margaret Dillon
Independent Director
Independent Director
945.00
+18.87%
Ms. Suzanne F. Shank
Ms. Suzanne F. Shank
Independent Director
Independent Director
871.00
+20.80%
Mr. Steven M. Yi
Mr. Steven M. Yi
Director
Director
--
--
Mr. Philip A. Gelston
Mr. Philip A. Gelston
Independent Director
Independent Director
--
--
Mr. Peter M. (Pete) Carlson, CPA
Mr. Peter M. (Pete) Carlson, CPA
Independent Director
Independent Director
--
--
View more
Name
Name/Position
Position
Shareholding
Change
Mr. George Manning Rountree
Mr. George Manning Rountree
Chief Executive Officer, Director
Chief Executive Officer, Director
24.36K
+0.01%
Mr. Liam P. Caffrey
Mr. Liam P. Caffrey
Chief Executive Officer, Director
Chief Executive Officer, Director
4.24K
+0.05%
Mr. Weston M. Hicks
Mr. Weston M. Hicks
Independent Chairman of the Board
Independent Chairman of the Board
2.75K
+8.28%
Mr. David Allen Tanner, J.D.
Mr. David Allen Tanner, J.D.
Independent Deputy Chairman of the Board
Independent Deputy Chairman of the Board
2.10K
-0.19%
Ms. Mary C. Choksi
Ms. Mary C. Choksi
Independent Director
Independent Director
1.86K
+8.78%
Ms. Margaret Dillon
Ms. Margaret Dillon
Independent Director
Independent Director
945.00
+18.87%
Revenue Breakdown
Relevant data have not been disclosed by the company yet.
Relevant data have not been disclosed by the company yet.
By Business
By Region
Relevant data have not been disclosed by the company yet.
Shareholding Stats
Updated: Wed, Aug 6
Updated: Wed, Aug 6
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
The Vanguard Group, Inc.
9.78%
Dimensional Fund Advisors, L.P.
6.24%
Neuberger Berman, LLC
4.56%
River Road Asset Management, LLC
4.35%
Fuller & Thaler Asset Management Inc.
4.29%
Other
70.79%
Shareholders
Shareholders
Proportion
The Vanguard Group, Inc.
9.78%
Dimensional Fund Advisors, L.P.
6.24%
Neuberger Berman, LLC
4.56%
River Road Asset Management, LLC
4.35%
Fuller & Thaler Asset Management Inc.
4.29%
Other
70.79%
Shareholder Types
Shareholders
Proportion
Investment Advisor
51.77%
Investment Advisor/Hedge Fund
39.70%
Individual Investor
2.68%
Research Firm
1.98%
Hedge Fund
1.36%
Sovereign Wealth Fund
1.21%
Pension Fund
0.92%
Bank and Trust
0.32%
Family Office
0.04%
Other
0.01%
Institutional Shareholding
Updated: Wed, Oct 1
Updated: Wed, Oct 1
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2025Q3
586
2.44M
96.72%
-1.75K
2025Q2
586
2.49M
96.69%
-7.87K
2025Q1
596
2.48M
96.32%
+7.22K
2024Q4
591
2.43M
94.79%
-15.58K
2024Q3
575
2.37M
92.19%
-102.61K
2024Q2
570
2.43M
96.05%
-186.02K
2024Q1
553
2.41M
94.27%
-175.47K
2023Q4
535
2.39M
93.17%
-210.78K
2023Q3
522
2.40M
93.55%
-173.80K
2023Q2
515
2.37M
92.45%
-213.48K
View more
Shareholder Activity
Name
Shares Held
Proportion
Change
Chg %
Date
The Vanguard Group, Inc.
248.58K
9.78%
-946.00
-0.38%
Jun 30, 2025
Dimensional Fund Advisors, L.P.
155.75K
6.13%
-864.00
-0.55%
Jun 30, 2025
Neuberger Berman, LLC
83.70K
3.29%
+26.84K
+47.19%
Jun 30, 2025
River Road Asset Management, LLC
109.89K
4.32%
+227.00
+0.21%
Jun 30, 2025
Fuller & Thaler Asset Management Inc.
100.98K
3.97%
-9.11K
-8.27%
Jun 30, 2025
Cooke & Bieler, L.P.
76.78K
3.02%
+22.13K
+40.49%
Jun 30, 2025
BlackRock Institutional Trust Company, N.A.
98.50K
3.87%
-2.12K
-2.11%
Jun 30, 2025
Fiduciary Management, Inc.
71.48K
2.81%
-317.00
-0.44%
Jun 30, 2025
Boston Partners
89.39K
3.52%
+4.16K
+4.88%
Jun 30, 2025
Wallace Capital Management Inc.
79.04K
3.11%
-895.00
-1.12%
Jun 30, 2025
View more
Related ETFs
Updated: Sat, Dec 6
Updated: Sat, Dec 6
Name
Proportion
Neuberger Berman Small-Mid Cap ETF
3%
SPDR S&P Insurance ETF
1.91%
Themes US Small Cap Cash Flow Champions ETF
1.45%
Brandes US Small-Mid Cap Value ETF
0.94%
iShares MSCI USA Small-Cap Min Vol Factor ETF
0.81%
AGF US Market Neutral Anti-Beta Fund
0.64%
FlexShares US Quality Low Volatility Index Fund
0.54%
Royce Quant Small-Cap Quality Value ETF
0.53%
Unusual Whales Subversive Republican Trading ETF
0.52%
SPDR SSGA US Small Cap Low Volatility Index ETF
0.48%
View more
Neuberger Berman Small-Mid Cap ETF
Proportion3%
SPDR S&P Insurance ETF
Proportion1.91%
Themes US Small Cap Cash Flow Champions ETF
Proportion1.45%
Brandes US Small-Mid Cap Value ETF
Proportion0.94%
iShares MSCI USA Small-Cap Min Vol Factor ETF
Proportion0.81%
AGF US Market Neutral Anti-Beta Fund
Proportion0.64%
FlexShares US Quality Low Volatility Index Fund
Proportion0.54%
Royce Quant Small-Cap Quality Value ETF
Proportion0.53%
Unusual Whales Subversive Republican Trading ETF
Proportion0.52%
SPDR SSGA US Small Cap Low Volatility Index ETF
Proportion0.48%
Dividend
A total of
14.40M
USD has been distributed in dividends over the past 5 years.
Date
Dividend
Record Date
Payment Date
Ex-dividend Date
Feb 28, 2025
WTM.NB Final Cash Dividend of gross USD 1 paid on Mar 26, 2025 going ex on Mar 17, 2025
Mar 17, 2025
Mar 26, 2025
Mar 17, 2025
Feb 23, 2024
WTM.NB Final Cash Dividend of gross USD 1 paid on Mar 20, 2024 going ex on Mar 08, 2024
Mar 11, 2024
Mar 20, 2024
Mar 08, 2024
Feb 24, 2023
WTM.NB Final Cash Dividend of gross USD 1 paid on Mar 22, 2023 going ex on Mar 10, 2023
Mar 13, 2023
Mar 22, 2023
Mar 10, 2023
Feb 25, 2022
WTM.NB Final Cash Dividend of gross USD 1 paid on Mar 23, 2022 going ex on Mar 11, 2022
Mar 14, 2022
Mar 23, 2022
Mar 11, 2022
Feb 26, 2021
WTM.NB Final Cash Dividend of gross USD 1 paid on Mar 24, 2021 going ex on Mar 12, 2021
Mar 15, 2021
Mar 24, 2021
Mar 12, 2021
Feb 28, 2020
WTM.NB Final Cash Dividend of gross USD 1 paid on Mar 25, 2020 going ex on Mar 13, 2020
Mar 16, 2020
Mar 25, 2020
Mar 13, 2020
Stock Split
Date
Type
Ratio
No Data
Date
Type
Ratio
No Data
FAQs
Who are the top five shareholders of White Mountains Insurance Group Ltd?
The top five shareholders of White Mountains Insurance Group Ltd are:
The Vanguard Group, Inc. holds 248.58K shares, accounting for 9.78% of the total shares.
Dimensional Fund Advisors, L.P. holds 155.75K shares, accounting for 6.13% of the total shares.
Neuberger Berman, LLC holds 83.70K shares, accounting for 3.29% of the total shares.
River Road Asset Management, LLC holds 109.89K shares, accounting for 4.32% of the total shares.
Fuller & Thaler Asset Management Inc. holds 100.98K shares, accounting for 3.97% of the total shares.
The Vanguard Group, Inc. holds 248.58K shares, accounting for 9.78% of the total shares.
Dimensional Fund Advisors, L.P. holds 155.75K shares, accounting for 6.13% of the total shares.
Neuberger Berman, LLC holds 83.70K shares, accounting for 3.29% of the total shares.
River Road Asset Management, LLC holds 109.89K shares, accounting for 4.32% of the total shares.
Fuller & Thaler Asset Management Inc. holds 100.98K shares, accounting for 3.97% of the total shares.
What are the top three shareholder types of White Mountains Insurance Group Ltd?
The top three shareholder types of White Mountains Insurance Group Ltd are:
The Vanguard Group, Inc.
Dimensional Fund Advisors, L.P.
Neuberger Berman, LLC
The Vanguard Group, Inc.
Dimensional Fund Advisors, L.P.
Neuberger Berman, LLC
How many institutions hold shares of White Mountains Insurance Group Ltd (WTM)?
As of 2025Q3, 586 institutions hold shares of White Mountains Insurance Group Ltd, with a combined market value of approximately 2.44M, accounting for 96.72% of the total shares. Compared to 2025Q2, institutional shareholding has increased by 0.02%.
What is the biggest source of revenue for White Mountains Insurance Group Ltd?
In --, the -- business generated the highest revenue for White Mountains Insurance Group Ltd, amounting to -- and accounting for --% of total revenue.
