• Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
Quantisnow Logo
  • Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
PublishGo to App
    Quantisnow Logo

    © 2026 quantisnow.com
    Democratizing insights since 2022

    Services
    Live news feedsRSS FeedsAlertsPublish with Us
    Company
    AboutQuantisnow PlusContactJobsAI superconnector for talent & startupsNEWLLM Arena
    Legal
    Terms of usePrivacy policyCookie policy

    White Mountains Insurance Group Ltd. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Financial Statements and Exhibits

    7/7/25 8:58:41 AM ET
    $WTM
    Property-Casualty Insurers
    Finance
    Get the next $WTM alert in real time by email
    wtm-20250704
    FALSE0000776867Bermuda1-899394-270845503755☐☐☐☐☐00007768672025-07-042025-07-04

    UNITED STATES
    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549
    FORM 8-K

    CURRENT REPORT
    Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

    July 4, 2025
    Date of Report (Date of earliest event reported)

    WHITE MOUNTAINS INSURANCE GROUP, LTD.
    (Exact name of registrant as specified in its charter)
    Bermuda
    (State or other jurisdiction of
     incorporation or organization)
    1-8993
    (Commission file number)
    94-2708455
    (I.R.S. Employer Identification No.)

    23 South Main Street, Suite 3B, Hanover, New Hampshire 03755
    (Address of principal executive offices)

    (603) 640-2200
    (Registrant’s telephone number, including area code)

    Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

    ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

    ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

    ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

    ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

    Securities registered pursuant to Section 12(b) of the Act:
    Title of each classTrading Symbol(s)Name of each exchange on which registered
    Common Shares, par value $1.00 per shareWTMNew York Stock Exchange
    WTM.BHBermuda Stock Exchange

    Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933(§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).                                     Emerging growth company ☐
    If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.      o



    ITEM 1.01 Entry into a Material Definitive Agreement.

    On July 4, 2025, White Mountains Insurance Group, Ltd. (“White Mountains”) and its indirect wholly owned subsidiaries WM Monroe Holdings, Inc. (“Buyer”) and WM Phoenix GP, LLC entered into a Unit Purchase Agreement (the “Purchase Agreement”) with AQ Phoenix Parent, L.P. (“Distinguished Programs” or “Distinguished”) and certain other parties thereto. The Purchase Agreement provides that Buyer will acquire, inclusive of White Mountains’s existing approximately 1% interest, a 51% controlling interest in Distinguished Programs (the “Transactions”) for approximately $230 million in cash.

    On July 7, 2025, White Mountains issued a press release announcing the entry into the Purchase Agreement. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is hereby incorporated by reference into this Current Report.

    The Purchase Agreement contains customary representations and warranties as well as covenants by each of the parties, including certain operating restrictions on the conduct of the business of Distinguished during the period from the execution of the Purchase Agreement to the closing of the Transactions. The selling unitholders of Distinguished will indemnify Buyer, and Buyer will indemnify the unitholders of Distinguished for damages arising from breaches of their respective representations and warranties under the Purchase Agreement, subject to certain limitations set forth in the Purchase Agreement. In addition, Buyer has obtained a customary representations and warranties insurance policy covering breaches of the representations and warranties made by Distinguished and certain sellers.

    White Mountains has agreed to guarantee Buyer’s obligations under the Purchase Agreement.

    The Purchase Agreement also contains provisions giving each of Buyer and Distinguished the right to terminate the Purchase Agreement under certain circumstances, including where the closing of the Transactions has not occurred on or before October 2, 2025.

    The Transactions are expected to close in the third quarter of 2025. Completion of the Transactions is subject to receipt of certain regulatory approvals and other customary closing conditions. There is no condition with respect to the availability of financing to consummate the Transactions. Completion of the Transactions does not require the approval of the White Mountains shareholders.

    On the third anniversary of the closing of the Transactions, certain sellers will have the right to sell additional units (representing 29% of the total units at closing) to White Mountains at the same unit price paid in the Transactions, the total price for which, if exercised in full, is expected to be approximately $130 million. White Mountains will have a parallel right to purchase such units at 1.35x the unit price paid in the Transactions.

    The foregoing description of the Purchase Agreement and the other transaction documents related thereto does not purport to be complete and is subject to and qualified in its entirety by reference to the text of such agreements. We intend to file the Purchase Agreement as an exhibit to our next periodic report.

    ITEM 9.01. Financial Statements and Exhibits.

    (d) Exhibits

    99.1 Press Release, dated as of July 7, 2025



    2


    Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995

    This Current Report on Form 8-K may contain “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements, other than statements of historical facts, included or referenced in this filing which address activities, events or developments which White Mountains expects or anticipates will or may occur in the future are forward-looking statements. The words “could,” “will,” “believe,” “intend,” “expect,” “anticipate,” “project,” “estimate,” “predict” and similar expressions are also intended to identify forward-looking statements. These forward-looking statements include, among others, statements with respect to White Mountains’s:

    •change in book value per share or return on equity;
    •business strategy;
    •financial and operating targets or plans;
    •incurred loss and loss adjustment expenses and the adequacy of its loss and loss adjustment expense reserves and related reinsurance;
    •projections of revenues, income (or loss), earnings (or loss) per share, EBITDA, adjusted EBITDA, dividends, market share or other financial forecasts of White Mountains or its businesses;
    •expansion and growth of its business and operations; and
    •future consummation of any transaction and the timing thereof, including any recapitalization, distribution, repurchase or financing.

    These statements are based on certain assumptions and analyses made by White Mountains in light of its experience and perception of historical trends, current conditions and expected future developments, as well as other factors believed to be appropriate in the circumstances. However, whether actual results and developments will conform to its expectations and predictions is subject to risks and uncertainties that could cause actual results to differ materially from expectations, including:

    •the risks that are described from time to time in White Mountains’s filings with the Securities and Exchange Commission, including but not limited to White Mountains’s 2024 Annual Report on Form 10-K;
    •claims arising from catastrophic events, such as hurricanes, windstorms, earthquakes, floods, wildfires, tornadoes, tsunamis, severe weather, public health crises, terrorist attacks, war and war-like actions, explosions, infrastructure failures or cyber-attacks;
    •recorded loss reserves subsequently proving to have been inadequate;
    •the market value of White Mountains’s investment in MediaAlpha;
    •business opportunities (or lack thereof) that may be presented to it and pursued;
    •actions taken by rating agencies, such as financial strength or credit ratings downgrades or placing ratings on negative watch;
    •the continued availability of capital and financing;
    •the continued availability of fronting and reinsurance capacity;
    •deterioration of general economic, market or business conditions, including due to outbreaks of contagious disease and corresponding mitigation efforts;
    •competitive forces, including the conduct of other insurers;
    •changes in domestic or foreign laws or regulations, or their interpretation, applicable to White Mountains, its competitors or its customers; and
    •other factors, most of which are beyond White Mountains’s control.

    Consequently, all of the forward-looking statements made in this Current Report on Form 8-K are qualified by these cautionary statements, and there can be no assurance that the actual results or developments anticipated by White Mountains will be realized or, even if substantially realized, that they will have the expected consequences to, or effects on, White Mountains or its business or operations. White Mountains assumes no obligation to publicly update any such forward-looking statements, whether as a result of new information, future events or otherwise.


    3


    SIGNATURES

    Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


    WHITE MOUNTAINS INSURANCE GROUP, LTD.
    Date: July 7, 2025By:
    /s/   MICHAELA J. HILDRETH    
           Michaela J. Hildreth
          Managing Director and
          Chief Accounting Officer

    4
    Get the next $WTM alert in real time by email

    Crush Q1 2026 with the Best AI Superconnector

    Stay ahead of the competition with Standout.work - your AI-powered talent-to-startup matching platform.

    AI-Powered Inbox
    Context-aware email replies
    Strategic Decision Support
    Get Started with Standout.work

    Recent Analyst Ratings for
    $WTM

    DatePrice TargetRatingAnalyst
    More analyst ratings

    $WTM
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    View All

    MD & Chief Accounting Officer Hildreth Michaela covered exercise/tax liability with 274 shares, decreasing direct ownership by 10% to 2,491 units (SEC Form 4)

    4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)

    1/5/26 9:09:25 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    Chief Financial Officer Papamichael Michael A covered exercise/tax liability with 131 shares, decreasing direct ownership by 15% to 772 units (SEC Form 4)

    4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)

    1/2/26 9:28:22 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    New insider Papamichael Michael A claimed ownership of 1,615 shares (SEC Form 3)

    3 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)

    1/2/26 9:26:25 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    $WTM
    SEC Filings

    View All

    SEC Form 13F-HR filed by White Mountains Insurance Group Ltd.

    13F-HR - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)

    2/12/26 5:26:49 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    White Mountains Insurance Group Ltd. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits

    8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)

    2/6/26 8:21:15 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    White Mountains Insurance Group Ltd. filed SEC Form 8-K: Other Events

    8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)

    1/7/26 8:02:26 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    $WTM
    Insider Purchases

    Insider purchases reveal critical bullish sentiment about the company from key stakeholders. See them live in this feed.

    View All

    Hicks Weston M bought $1,480,557 worth of shares (1,000 units at $1,480.56), increasing direct ownership by 77% to 2,306 units (SEC Form 4) (Amendment)

    4/A - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)

    11/20/23 2:39:43 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    Hicks Weston M bought $1,480,557 worth of shares (1,000 units at $1,480.56), increasing direct ownership by 77% to 2,306 units (SEC Form 4)

    4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)

    11/20/23 8:58:34 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    $WTM
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    WHITE MOUNTAINS REPORTS FOURTH QUARTER RESULTS

    HAMILTON, Bermuda, Feb. 6, 2026 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) reported book value per share of $2,188 as of December 31, 2025, an increase of 18% for the fourth quarter of 2025 and 25% for the year ended December 31, 2025, including dividends. Liam Caffrey, CEO, commented, "We had an excellent year, with BVPS growth of 18% in the quarter and 25% for the year.  The largest contributor in both periods was the net gain from our sale of Bamboo, which added roughly $320 to BVPS in 2025.  We also benefitted from solid results at our operating companies and good investment returns.  For the year, Ark produced an 83% combined ratio and $2.6 billion of gross writte

    2/6/26 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    White Mountains Announces Final Results of Its Tender Offer

    HAMILTON, Bermuda, Dec. 24, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) announced today the final results of its "modified Dutch auction" tender offer. The tender offer expired at 12:00 midnight, New York City time, at the end of the day on December 19, 2025. Based on the final count by the depositary for the tender offer, 64,064 shares were properly tendered and not properly withdrawn at or below the final purchase price of $2,050.00 per share. The Company is purchasing all validly tendered shares for approximately $131.3 million.  The shares purchased in the tender offer represent approximately 2.5% of White Mountains's shares outstanding as of November 19, 2025.

    12/24/25 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    White Mountains Announces Preliminary Results of Its Tender Offer

    HAMILTON, Bermuda, Dec. 22, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today the preliminary results of its "modified Dutch auction" tender offer to purchase up to $300 million in value of its common shares. The tender offer expired at 12:00 midnight, New York City time, at the end of the day on December 19, 2025. Based on a preliminary count by the depositary for the tender offer, 67,186 shares were properly tendered and not properly withdrawn at or below the purchase price of $2,050 per share, including 16,589 shares that were tendered by notice of guaranteed delivery. The Company expects to purchase all validly tendered shares for approximately $137.

    12/22/25 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    $WTM
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    Amendment: SEC Form SC 13G/A filed by White Mountains Insurance Group Ltd.

    SC 13G/A - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Subject)

    11/12/24 5:29:20 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    SEC Form SC 13G/A filed by White Mountains Insurance Group Ltd. (Amendment)

    SC 13G/A - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Subject)

    2/13/24 5:17:36 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    SEC Form SC 13G/A filed by White Mountains Insurance Group Ltd. (Amendment)

    SC 13G/A - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Subject)

    2/12/24 5:45:57 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    $WTM
    Financials

    Live finance-specific insights

    View All

    WHITE MOUNTAINS REPORTS FOURTH QUARTER RESULTS

    HAMILTON, Bermuda, Feb. 6, 2026 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) reported book value per share of $2,188 as of December 31, 2025, an increase of 18% for the fourth quarter of 2025 and 25% for the year ended December 31, 2025, including dividends. Liam Caffrey, CEO, commented, "We had an excellent year, with BVPS growth of 18% in the quarter and 25% for the year.  The largest contributor in both periods was the net gain from our sale of Bamboo, which added roughly $320 to BVPS in 2025.  We also benefitted from solid results at our operating companies and good investment returns.  For the year, Ark produced an 83% combined ratio and $2.6 billion of gross writte

    2/6/26 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    WHITE MOUNTAINS REPORTS THIRD QUARTER RESULTS

    HAMILTON, Bermuda, Nov. 6, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) reported book value per share of $1,851 as of September 30, 2025, an increase of 3% for the third quarter of 2025 and 6% for the first nine months of 2025, including dividends. On October 2, 2025, White Mountains entered into an agreement to sell approximately 77% of its equity interest in Bamboo for cash to CVC Capital Partners and will retain the remainder.  Including the expected fourth quarter impact from the closing of the transaction of approximately $325 per share, White Mountains's book value per share would be $2,176 as of September 30, 2025.  Bamboo's assets and liabilities have been p

    11/6/25 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    White Mountains to Sell Bamboo to CVC

    HAMILTON, Bermuda, Oct. 3, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) ("White Mountains") announced today that it has signed a definitive agreement to sell a controlling interest in Bamboo, a data-enabled insurance distribution platform providing homeowners' insurance and related products to the residential property market in California and Texas, to funds advised by CVC Capital Partners ("CVC"). The transaction values Bamboo at $1.75 billion.  White Mountains expects the transaction will result in a gain of approximately $310 to its book value per share and net cash proceeds of approximately $840 million. White Mountains will retain an approximately 15% fully-di

    10/3/25 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    $WTM
    Leadership Updates

    Live Leadership Updates

    View All

    GILES HARRISON TO JOIN WHITE MOUNTAINS AS EVP AND CHIEF STRATEGY OFFICER; LIAM CAFFREY NAMED PRESIDENT

    HAMILTON, Bermuda, April 10, 2024 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) announced today that Giles Harrison will become its Executive Vice President and Chief Strategy Officer on June 10, 2024.  Since 2015, Mr. Harrison has served in various capacities at Zurich Insurance Company Ltd., most recently as Chief Financial Officer of its subsidiary, Farmers Group, Inc.  Prior to joining Zurich, Mr. Harrison was an insurance sector investment banker for 20 years and advised White Mountains on numerous projects in such capacity. White Mountains also announced today that Liam Caffrey has been named President of White Mountains.  Mr. Caffrey will continue to serve as Chief

    4/10/24 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance