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

    © 2025 quantisnow.com
    Democratizing insights since 2022

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

    Director Dillon Margaret was granted 150 shares, increasing direct ownership by 19% to 945 units (SEC Form 4)

    5/23/25 7:10:03 PM ET
    $WTM
    Property-Casualty Insurers
    Finance
    Get the next $WTM alert in real time by email
    SEC FORM 4 SEC Form 4
    FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549

    STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
    or Section 30(h) of the Investment Company Act of 1940
    OMB APPROVAL
    OMB Number: 3235-0287
    Estimated average burden
    hours per response: 0.5
      
    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
      
    Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
    1. Name and Address of Reporting Person*
    Dillon Margaret

    (Last) (First) (Middle)
    C/O WHITE MOUNTAINS INSURANCE GROUP, LTD
    23 SOUTH MAIN STREET, SUITE 3B

    (Street)
    HANOVER NH 03755

    (City) (State) (Zip)
    2. Issuer Name and Ticker or Trading Symbol
    WHITE MOUNTAINS INSURANCE GROUP LTD [ WTM ]
    5. Relationship of Reporting Person(s) to Issuer
    (Check all applicable)
    X Director 10% Owner
    Officer (give title below) Other (specify below)
    3. Date of Earliest Transaction (Month/Day/Year)
    05/22/2025
    4. If Amendment, Date of Original Filed (Month/Day/Year)
    6. Individual or Joint/Group Filing (Check Applicable Line)
    X Form filed by One Reporting Person
    Form filed by More than One Reporting Person
    Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
    1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V Amount (A) or (D) Price
    Common Shares 05/22/2025 A 150(1) A $0 945 D
    Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
    (e.g., puts, calls, warrants, options, convertible securities)
    1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
    Explanation of Responses:
    1. Annual Director Share Award
    Wesley C. Bell, by Power of Attorney 05/22/2025
    ** Signature of Reporting Person Date
    Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
    * If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
    ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
    Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
    Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
    Get the next $WTM alert in real time by email

    Crush Q3 2025 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
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    WHITE MOUNTAINS REPORTS SECOND QUARTER RESULTS

    HAMILTON, Bermuda, Aug. 7, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) reported book value per share of $1,804 as of June 30, 2025, an increase of 3% for both the second quarter of 2025 and the first six months of 2025, including dividends. Manning Rountree, CEO, commented, "BVPS was up 3% in the quarter.  We had sound results at our operating companies and good investment returns.  Ark produced an 85% combined ratio and $815 million of gross written premiums in the quarter, up 17% year-over-year.  HG Global generated $19 million of gross written premiums, a record second quarter, and grew book value by 2%.  Kudu managed flattish results under volatile market condi

    8/7/25 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    BroadStreet Partners Completes Strategic Investment

    BroadStreet Partners ("BroadStreet" or the "Company") today announced the successful closing of a strategic investment by an investor group led by Ethos Capital ("Ethos"), British Columbia Investment Management Corporation ("BCI"), and White Mountains Insurance Group, Ltd. ("White Mountains"), marking a significant milestone in the Company's growth trajectory. Accounts advised by T. Rowe Price Investment Management, Inc. also participated. Ontario Teachers' Pension Plan ("Ontario Teachers'") will retain a significant co-control stake and continue its partnership with the Ethos-led investor group. BroadStreet is a leading middle-market insurance brokerage providing commercial and personal

    7/18/25 9:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    Majority Stake in Distinguished Programs Acquired by White Mountains

    Distinguished Programs ("Distinguished" or the "Company"), a national specialty insurance MGA and program manager, is pleased to announce that it has entered into a definitive agreement in which White Mountains Insurance Group, Ltd. ("White Mountains") will acquire a majority stake in the Company. White Mountains will support Distinguished's continued organic and inorganic growth strategy. Distinguished will continue to be led by industry veterans Bill Malloy (CEO), Jason Rotman (President) and Steve Sitterly (COO), and no major changes in management or strategy are foreseen as part of the transaction. Key existing shareholders, including Aquiline Capital, will remain significant minority

    7/7/25 9:15:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    $WTM
    Insider Trading

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

    View All

    Director Shank Suzanne F. was granted 150 shares, increasing direct ownership by 21% to 871 units (SEC Form 4)

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

    5/27/25 9:59:16 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    Director Yi Steven was granted 150 shares, increasing direct ownership by 40% to 525 units (SEC Form 4)

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

    5/23/25 7:12:17 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    Director Tanner David Allen was granted 150 shares, increasing direct ownership by 8% to 2,108 units (SEC Form 4)

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

    5/23/25 7:11:56 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)

    8/11/25 4:19:45 PM ET
    $WTM
    Property-Casualty Insurers
    Finance

    SEC Form 10-Q filed by White Mountains Insurance Group Ltd.

    10-Q - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)

    8/7/25 8:28:42 AM 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)

    8/7/25 8:03:30 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
    Financials

    Live finance-specific insights

    View All

    WHITE MOUNTAINS REPORTS SECOND QUARTER RESULTS

    HAMILTON, Bermuda, Aug. 7, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) reported book value per share of $1,804 as of June 30, 2025, an increase of 3% for both the second quarter of 2025 and the first six months of 2025, including dividends. Manning Rountree, CEO, commented, "BVPS was up 3% in the quarter.  We had sound results at our operating companies and good investment returns.  Ark produced an 85% combined ratio and $815 million of gross written premiums in the quarter, up 17% year-over-year.  HG Global generated $19 million of gross written premiums, a record second quarter, and grew book value by 2%.  Kudu managed flattish results under volatile market condi

    8/7/25 8:00:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    White Mountains to Acquire a Majority Stake in Distinguished Programs

    HAMILTON, Bermuda, July 7, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) announced today that it has entered into an agreement to acquire a majority stake in Distinguished Programs ("Distinguished" or the "Company"), an MGA and program administrator for specialty property & casualty insurance. Following the acquisition, White Mountains will own a 51% controlling interest in Distinguished. Distinguished is an MGA and program manager placing in excess of $550 million in premiums annually across a diversified portfolio of 12 specialty property and casualty programs such as commercial real estate, hotels & restaurants, community associations, environmental & construction

    7/7/25 8:45:00 AM ET
    $WTM
    Property-Casualty Insurers
    Finance

    WHITE MOUNTAINS REPORTS FIRST QUARTER RESULTS

    HAMILTON, Bermuda, May 7, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) reported book value per share of $1,752 as of March 31, 2025, a slight increase for the first quarter of 2025, including dividends.  Manning Rountree, CEO, commented, "Book value per share ended the quarter at $1,752, up slightly.  We had solid operating results and good investment returns, partially offset by the share price decline at MediaAlpha.  Ark posted a 94% combined ratio and wrote $1.1 billion of gross written premiums, up 27% year-over-year.  HG Global generated $7 million of gross written premiums and grew equity by 3% in the quarter.  At Kudu, trailing 12 months EBITDA increased, and

    5/7/25 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

    $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