White Mountains Insurance Group Ltd (WTM) — SEC Filings
White Mountains Insurance Group Ltd (WTM) — 42 SEC filings. Latest: 8-K (Dec 8, 2025). Includes 17 8-K, 7 13F-HR, 6 10-Q.
View White Mountains Insurance Group Ltd on SEC EDGAR
Overview
White Mountains Insurance Group Ltd (WTM) is a publicly traded company tracked on ReadTheFiling. The most recent enriched filing is a 8-K filed on Dec 8, 2025: White Mountains Insurance Group, Ltd. announced the completion of its acquisition of an unspecified asset on December 5, 2025. The filing also includes information on other events and financial statements and exhibits related to this transaction. The company, formerly known as Fund American Enterpri
Sentiment Summary
Across 42 filings, the sentiment breakdown is: 1 bullish, 40 neutral, 1 mixed. The dominant filing sentiment for White Mountains Insurance Group Ltd is neutral.
Filing Type Overview
White Mountains Insurance Group Ltd (WTM) has filed 17 8-K, 7 13F-HR, 6 10-Q, 2 DEF 14A, 2 10-K, 5 SC 13G/A, 3 SC 13D/A with the SEC between Jan 2024 to Dec 2025.
Filings by Year
Recent SEC Filings (42)
Risk Profile
Risk Assessment: Of WTM's 30 recent filings, 0 were flagged as high-risk, 7 as medium-risk, and 23 as low-risk. The overall risk profile suggests relatively low risk with generally favorable filings.
Financial Highlights
| Metric | Value |
|---|---|
| Revenue | $2.13B |
| Net Income | $270.6M |
| Total Assets | $12.35B |
Industry Context
The insurance and reinsurance industry is characterized by significant capital requirements, regulatory oversight, and sensitivity to economic cycles and catastrophic events. White Mountains operates across P&C insurance, reinsurance, financial guarantee, asset management, and specialty distribution, facing competition from large global insurers and specialized niche players. Trends include increasing demand for specialized insurance products, evolving regulatory landscapes, and the impact of climate change on underwriting risks.
Top Tags
insurance (8) · sec-filing (6) · corporate-governance (6) · amendment (6) · Insurance (4) · 8-k (4) · 10-Q (4) · institutional-ownership (4) · 8-K (3) · disclosure (3)
Key Numbers
| Metric | Value | Context |
|---|---|---|
| Total Assets | $12.35B | Increased from $9.93B at Dec 31, 2024 |
| Total Revenues (9 months) | $2.13B | Up 13.2% from $1.88B in 2024 |
| Net Income Attributable to White Mountains's Common Shareholders (9 months) | $270.6M | Decreased 25% from $360.8M in 2024 |
| Total Liabilities | $6.63B | Increased from $4.79B at Dec 31, 2024 |
| Net Cash Provided from Operations (9 months) | $496.6M | Slightly down from $522.7M in 2024 |
| Loss and Loss Adjustment Expense Reserves (P&C) | $2.48B | Increased from $2.13B at Dec 31, 2024 |
| Unearned Insurance Premiums (P&C) | $1.43B | Increased from $853.3M at Dec 31, 2024 |
| Redeemable Noncontrolling Interests | $133.2M | Acquired during the nine-month period |
| Nonredeemable Noncontrolling Interests | $105.5M | Acquired during the nine-month period |
| Decrease in Net Income Attributable to Common Shareholders | 25% | Year-over-year for the nine months ended September 30 |
| Commission File Number | 1-8993 | Identifies the company's SEC filing history. |
| I.R.S. Employer Identification No. | 94-2708455 | Company's tax identification number. |
| Annual Meeting Date | 20250522 | Shareholders will vote on proposals at this meeting. |
| Filing Date | 20250402 | The proxy statement was officially filed with the SEC on this date. |
| Reporting Period End | 2024-09-30 | Indicates the end date for the financial data presented in the 10-Q. |
Forward-Looking Statements
- {"claim":"Morgan Stanley will likely maintain a significant, passive stake in White Mountains Insurance Group Ltd.","entity":"Morgan Stanley","targetDate":"Next 12 months","confidence":"high"}
- {"claim":"Dimensional Fund Advisors LP will maintain a significant stake in White Mountains Insurance Group Ltd.","entity":"Dimensional Fund Advisors LP","targetDate":"Next 12 months","confidence":"high"}
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Frequently Asked Questions
What are the latest SEC filings for White Mountains Insurance Group Ltd (WTM)?
White Mountains Insurance Group Ltd has 42 recent SEC filings from Jan 2024 to Dec 2025, including 17 8-K, 7 13F-HR, 6 10-Q. Each filing includes an AI-generated plain-English summary.
What is the overall sentiment of WTM filings?
Across 42 filings, the sentiment breakdown is: 1 bullish, 40 neutral, 1 mixed. The dominant sentiment is neutral.
Where can I find White Mountains Insurance Group Ltd SEC filings explained simply?
ReadTheFiling provides AI-powered plain-English summaries of all White Mountains Insurance Group Ltd (WTM) SEC filings, including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, and insider trades.
What are the key financial highlights for White Mountains Insurance Group Ltd?
Key financial highlights from White Mountains Insurance Group Ltd's most recent 10-Q include metrics such as revenue, net income, EPS, and debt ratios. Visit the filing detail page for the full breakdown.
What is the investment thesis for WTM?
The investment thesis for WTM includes bull, base, and bear case scenarios derived from AI analysis of recent SEC filings.
Who are the key executives at White Mountains Insurance Group Ltd?
Executive information for White Mountains Insurance Group Ltd is extracted from SEC filings as they are enriched with AI analysis.
What are the main risk factors for White Mountains Insurance Group Ltd stock?
Of WTM's 30 assessed filings, 0 were flagged high-risk, 7 medium-risk, and 23 low-risk.
What are recent predictions and forward guidance from White Mountains Insurance Group Ltd?
Recent forward-looking statements from White Mountains Insurance Group Ltd include guidance on {"claim":"Morgan Stanley will likely maintain a significant, passive stake in White Mountains Insurance Group Ltd.","ent and 1 other predictions.