White Mountains Insurance Group (WTM) News Today $1,825.75 -19.67 (-1.07%) Closing price 03:59 PM EasternExtended Trading$1,824.55 -1.20 (-0.07%) As of 04:10 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Headlines Stock AnalysisChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock WTM Latest News All Sources Trusted Sources MarketBeat Barchart Benzinga Bloomberg GlobeNewswire GuruFocus MarketWatch Motley Fool NASDAQ PR Newswire Reuters Seeking Alpha TalkMarkets The Street TipRanks The Wall Street Journal Wall Street Zen Yahoo Finance Source Sentiment refers to the positivity or negativity of each headline according to our language processing algorithm. Sentiment All Sentiments Very Positive Positive Neutral Negative Very Negative Most Recent August 2025 July 2025 June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024 January 2024 December 2023 November 2023 October 2023 September 2023 August 2023 July 2023 June 2023 May 2023 April 2023 March 2023 February 2023 January 2023 December 2022 November 2022 October 2022 September 2022 Time Period American Century Companies Inc. Buys 1,661 Shares of White Mountains Insurance Group, Ltd. $WTMAugust 28 at 3:59 AM | marketbeat.comInvesco Ltd. Sells 329 Shares of White Mountains Insurance Group, Ltd. $WTMAugust 28 at 3:27 AM | marketbeat.comHotchkis & Wiley Capital Management LLC Sells 473 Shares of White Mountains Insurance Group, Ltd. $WTMAugust 26 at 6:19 AM | marketbeat.comDouglass Winthrop Advisors LLC Takes $368,000 Position in White Mountains Insurance Group, Ltd. $WTMAugust 26 at 5:40 AM | marketbeat.comWhite Mountains Insurance Group, Ltd. $WTM Shares Sold by Wellington Management Group LLPAugust 26 at 4:15 AM | marketbeat.comFiduciary Management Inc. WI Buys 22,681 Shares of White Mountains Insurance Group, Ltd. $WTMAugust 24, 2025 | marketbeat.comWhite Mountains Insurance Group, Ltd. $WTM Shares Purchased by T. Rowe Price Investment Management Inc.August 24, 2025 | marketbeat.comRaymond James Financial Inc. Sells 748 Shares of White Mountains Insurance Group, Ltd. $WTMAugust 23, 2025 | marketbeat.comNuveen LLC Invests $14.96 Million in White Mountains Insurance Group, Ltd. $WTMAugust 23, 2025 | marketbeat.comDoes White Mountains Insurance Group's Earnings Reversal Signal Sustainable Momentum for WTM Investors?August 21, 2025 | finance.yahoo.comWhite Mountains Insurance Group, Ltd. $WTM Shares Sold by Fuller & Thaler Asset Management Inc.August 20, 2025 | marketbeat.comBrandywine Global Investment Management LLC Has $6.98 Million Holdings in White Mountains Insurance Group, Ltd. (NYSE:WTM)August 19, 2025 | marketbeat.comDimensional Fund Advisors LP Lowers Stock Position in White Mountains Insurance Group, Ltd. (NYSE:WTM)August 19, 2025 | marketbeat.comCharles Schwab Investment Management Inc. Has $47.58 Million Stake in White Mountains Insurance Group, Ltd. (NYSE:WTM)August 18, 2025 | marketbeat.comLord Abbett & CO. LLC Sells 265 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)August 17, 2025 | marketbeat.comVanguard Group Inc. Has $481.68 Million Stake in White Mountains Insurance Group, Ltd. (NYSE:WTM)August 16, 2025 | marketbeat.comAtria Wealth Solutions Inc. Acquires Shares of 211 White Mountains Insurance Group, Ltd. (NYSE:WTM)August 16, 2025 | marketbeat.comWhite Mountains Insurance Group, Ltd. (NYSE:WTM) Shares Sold by Boston PartnersAugust 15, 2025 | marketbeat.comWhite Mountains (WTM) Q2 Revenue Up 74%August 7, 2025 | fool.comWHITE MOUNTAINS REPORTS SECOND QUARTER RESULTSAugust 7, 2025 | gurufocus.comWhite Mountains Insurance Group Ltd Reports Q2 2025 Revenue of $689. ...August 7, 2025 | gurufocus.comWhite Mountains Insurance Group, Ltd. (NYSE:WTM) Sees Large Increase in Short InterestAugust 7, 2025 | marketbeat.comWHITE MOUNTAINS REPORTS SECOND QUARTER RESULTSAugust 7, 2025 | prnewswire.comWhite Mountains Insurance Group, Ltd. (NYSE:WTM) Shares Sold by Phocas Financial Corp.August 4, 2025 | marketbeat.comTD Asset Management Inc Acquires 212 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)August 3, 2025 | marketbeat.comWhite Mountains Insurance Group (NYSE:WTM) Stock Acquired Rep. J. French HillJuly 26, 2025 | marketbeat.comWhite Mountains Insurance Group Stock (WTM) Opinions on BroadStreet InvestmentJuly 25, 2025 | quiverquant.comQRoyce & Associates LP Has $22.32 Million Stake in White Mountains Insurance Group, Ltd. (NYSE:WTM)July 25, 2025 | marketbeat.comWhite Mountains Insurance Group (NYSE:WTM) Sees Large Volume Increase - Time to Buy?July 24, 2025 | marketbeat.comAM Best Assigns Credit Ratings to DavidShield Insurance CompanyJuly 21, 2025 | businesswire.comVictory Capital Management Inc. Acquires 4,543 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)July 21, 2025 | marketbeat.comWhite Mountains Completes $150M Investment in BroadStreetJuly 18, 2025 | tipranks.comForum Financial Management LP Acquires 289 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)July 17, 2025 | marketbeat.comCooke & Bieler LP Increases Stock Holdings in White Mountains Insurance Group, Ltd. (NYSE:WTM)July 17, 2025 | marketbeat.comWhite Mountains Insurance Group (NYSE:WTM) Sees Unusually-High Trading Volume - Still a Buy?July 16, 2025 | marketbeat.com3,540 Shares in White Mountains Insurance Group, Ltd. (NYSE:WTM) Acquired by Edgestream Partners L.P.July 15, 2025 | marketbeat.comNisa Investment Advisors LLC Sells 370 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)July 15, 2025 | marketbeat.comEnvestnet Asset Management Inc. Increases Stock Holdings in White Mountains Insurance Group, Ltd. (NYSE:WTM)July 14, 2025 | marketbeat.comSpeece Thorson Capital Group Inc. Sells 181 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)July 13, 2025 | marketbeat.comBrown Advisory Inc. Trims Stock Position in White Mountains Insurance Group, Ltd. (NYSE:WTM)July 9, 2025 | marketbeat.comWhite Mountains Insurance Group (NYSE:WTM) Sees Unusually-High Trading Volume - Time to Buy?July 7, 2025 | marketbeat.comMajority Stake in Distinguished Programs Acquired by White MountainsJuly 7, 2025 | finance.yahoo.comWhite Mountains Insurance to buy majority stake in Distinguished ProgramsJuly 7, 2025 | msn.comWhite Mountains to Acquire a Majority Stake in Distinguished ProgramsJuly 7, 2025 | prnewswire.comKBC Group NV Sells 1,934 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)July 6, 2025 | marketbeat.comWCM Investment Management LLC Buys 1,594 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)July 2, 2025 | marketbeat.comSummit Trail Advisors LLC Buys 194 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)July 2, 2025 | marketbeat.comWhite Mountains Insurance Group (NYSE:WTM) Sees Strong Trading Volume - Still a Buy?June 30, 2025 | marketbeat.comAllspring Global Investments Holdings LLC Buys 1,621 Shares of White Mountains Insurance Group, Ltd. (NYSE:WTM)June 30, 2025 | marketbeat.comRobeco Institutional Asset Management B.V. Has $36.89 Million Position in White Mountains Insurance Group, Ltd. (NYSE:WTM)June 28, 2025 | marketbeat.com Get White Mountains Insurance Group News Delivered to You Automatically Sign up to receive the latest news and ratings for WTM and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. 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Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. Related Companies and Tools Related Companies Erie Indemnity News Today Fidelity National Financial News Today CNA Financial News Today Old Republic International News Today Axis Capital News Today First American Financial News Today RLI News Today The Hanover Insurance Group News Today Selective Insurance Group News Today Mercury General News Today Headlines Tools Trending Media MentionsHigh Media Sentiment StocksLive News FeedMarketBeat OriginalsStock Ideas This page (NYSE:WTM) was last updated on 8/28/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredEveryone’s watching Nvidia right now. 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