Welcome to our dedicated page for White Mountains SEC filings (Ticker: WTM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The White Mountains Insurance Group, Ltd. (WTM) SEC filings page on Stock Titan provides direct access to the company’s U.S. regulatory disclosures, including Forms 10‑K, 10‑Q and 8‑K. As a Bermuda‑domiciled financial services holding company with common shares listed on the New York Stock Exchange and the Bermuda Stock Exchange, White Mountains files detailed reports describing its property and casualty insurance and reinsurance activities, municipal bond reinsurance operations, capital solutions for asset and wealth management firms, insurance distribution platforms and other investments.
In its annual reports on Form 10‑K and quarterly reports on Form 10‑Q, White Mountains presents consolidated financial statements, segment information for businesses such as Ark/WM Outrigger, HG Global, Kudu, Bamboo, Distinguished and Other Operations, and discussions of book value per share, comprehensive income and risk factors. These filings also describe exposures to catastrophic events, reserve adequacy considerations, investment portfolio performance and the impact of holdings such as MediaAlpha.
Current reports on Form 8‑K capture material events affecting WTM. Recent examples include the renewal of Outrigger Re Ltd., a collateralized reinsurance sidecar providing quota share protection on a portion of Ark Bermuda’s global property catastrophe portfolio; the entry into and closing of transactions to acquire a controlling interest in Distinguished Programs; the sale of a controlling financial interest in the Bamboo Group to affiliates of funds advised by CVC Capital Partners while retaining an indirect equity interest; announcements of quarterly results and non‑GAAP segment metrics; and disclosures regarding executive leadership changes.
On Stock Titan, these filings are updated as they are posted to EDGAR and are accompanied by AI‑powered summaries that highlight key points, such as segment performance, transaction terms, capital deployment, and changes in book value per share. Users can quickly scan 10‑K and 10‑Q reports for segment‑level trends, review 8‑K filings for acquisitions, dispositions, tender offers and governance changes, and examine how White Mountains describes risks related to catastrophes, reinsurance capacity, rating agency actions and regulatory developments. The platform also surfaces insider‑related disclosures contained in periodic and current reports, helping investors understand how management and the board respond to evolving conditions in the insurance and financial services markets.
White Mountains Insurance Group (WTM) filed an 8-K (Item 2.02) to furnish Q2 2025 results released on 7 Aug 2025.
- Bamboo MGA profitability surged: Q2 pre-tax income rose to $15.0 m from $6.0 m YoY; six-month pre-tax income climbed to $25.2 m from $7.3 m.
- Consolidated GAAP figures: Bamboo GAAP pre-tax income reached $16.1 m (vs $6.4 m).
- Investment performance: Total consolidated portfolio return was 2.7 % in Q2 (-0.1 % in Q2 2024) and 4.5 % YTD. Excluding MediaAlpha, returns improved to 2.3 % for Q2 and 4.7 % YTD.
- Equity portfolio: Q2 return of 4.2 %; excluding MediaAlpha 3.4 %.
- Non-GAAP focus: The press release presents 11 non-GAAP metrics for Kudu, Bamboo and portfolio returns, with reconciliations referenced in Exhibit 99.1.
No other material transactions or guidance were disclosed in the filing; the full financial detail resides in the attached press release.
White Mountains Insurance Group, Ltd. (WTM) has entered into a Unit Purchase Agreement to acquire a 51% controlling interest in specialty insurance program manager Distinguished Programs for approximately $230 million in cash. The transaction, executed on 4 July 2025 and announced on 7 July 2025, will be effected through wholly owned subsidiary WM Monroe Holdings, Inc. and is expected to close in Q3 2025, subject to regulatory approvals and customary conditions. There is no financing or shareholder-approval condition, and closing must occur by 2 Oct 2025 or either party may terminate.
- WTM already owns ≈1% of Distinguished; post-closing stake will rise to 51%.
- Sellers receive standard indemnities; Buyer obtained a representations & warranties insurance policy and WTM guarantees Buyer’s obligations.
- Put/Call: On the third anniversary of closing, sellers may require WTM to buy, or WTM may elect to buy, an additional 29% of units. Seller put price equals the original unit price (≈$130 million if fully exercised); WTM call price equals 1.35× the original unit price.
- Termination rights apply if closing is not achieved by 2 Oct 2025.
The deal expands WTM’s fee-based specialty insurance platform while utilising balance-sheet cash. Financial accretion, earnings impact, and Distinguished’s standalone metrics were not disclosed in the filing.