Quick Answer
WHITE MOUNTAINS INSURANCE GROUP LTD reported Stockholders Equity of $5.43 billion for the year ending 2025.
- WHITE MOUNTAINS INSURANCE GROUP LTD showed an increase of +21.0% in Stockholders Equity from 2024 to 2025.
- This data is from WHITE MOUNTAINS INSURANCE GROUP LTD's annual report (Form 10-K), filed with the SEC on February 27, 2026.
- XBRL data for this metric is available from 2009 to 2025 (17 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
- Quarterly values from 10-Q filings: Q2 2010: $3.51 billion | Q3 2010: $3.67 billion | Q1 2011: $3.60 billion | Q2 2011: $3.62 billion | Q3 2011: $3.44 billion | Q1 2012: $3.72 billion | Q2 2012: $3.74 billion | Q3 2012: $3.81 billion | Q1 2013: $3.76 billion | Q2 2013: $3.69 billion | Q3 2013: $3.79 billion | Q1 2014: $4.01 billion | Q2 2014: $4.11 billion | Q3 2014: $4.01 billion | Q1 2015: $4.01 billion | Q2 2015: $3.97 billion | Q3 2015: $3.75 billion | Q1 2016: $3.79 billion | Q2 2016: $3.88 billion | Q3 2016: $3.65 billion | Q1 2017: $3.60 billion | Q2 2017: $3.65 billion | Q3 2017: $3.47 billion | Q1 2018: $3.44 billion | Q2 2018: $2.94 billion | Q3 2018: $2.98 billion | Q1 2019: $3.12 billion | Q2 2019: $3.14 billion | Q3 2019: $3.19 billion | Q1 2020: $3.08 billion | Q2 2020: $3.17 billion | Q3 2020: $3.41 billion | Q1 2021: $3.83 billion | Q2 2021: $3.98 billion | Q3 2021: $3.52 billion | Q1 2022: $3.54 billion | Q2 2022: $3.32 billion | Q3 2022: $3.71 billion | Q1 2023: $3.90 billion | Q2 2023: $3.92 billion | Q3 2023: $3.95 billion | Q1 2024: $4.47 billion | Q2 2024: $4.42 billion | Q3 2024: $4.61 billion | Q1 2025: $4.51 billion | Q2 2025: $4.64 billion | Q3 2025: $4.77 billion.
- Over the full 17 years of available data (2009 to 2025), WHITE MOUNTAINS INSURANCE GROUP LTD's Stockholders Equity has grown by 48.3%.
- Historical annual values: Fiscal year 2025: $5.43 billion | Fiscal year 2024: $4.48 billion | Fiscal year 2023: $4.24 billion | Fiscal year 2022: $3.75 billion | Fiscal year 2021: $3.55 billion | Fiscal year 2020: $3.91 billion | Fiscal year 2019: $3.26 billion | Fiscal year 2018: $2.84 billion | Fiscal year 2017: $3.49 billion | Fiscal year 2016: $3.58 billion | Fiscal year 2015: $3.91 billion | Fiscal year 2014: $4.00 billion | Fiscal year 2013: $3.91 billion | Fiscal year 2012: $3.73 billion | Fiscal year 2011: $4.09 billion | Fiscal year 2010: $3.65 billion | Fiscal year 2009: $3.66 billion.
- Data sourced from SEC EDGAR public filings as of August 5, 2026.
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