| 2022-05-06 | +12.1% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2025-10-03 | +11.7% | news | Seeking Alpha | White Mountains sells controlling stake in Bamboo to CVC Capital Partners |
| 2025-10-03 | +11.7% | legal | SEC EDGAR | WTM 8-K: 1.01 and (SEC Filing) |
| 2025-10-03 | +11.7% | M&A | Yahoo Finance | White Mountains Sells Majority Stake In Bamboo In $1.75 Billion Deal - Yahoo Finance |
| 2025-10-03 | +11.7% | M&A | Reuters | White Mountains to sell insurance agency Bamboo to CVC in $1.75 billion deal - Reuters |
| 2024-02-12 | +5.7% | news | Stock Titan | ZACHARY MATTLER JOINS WHITE MOUNTAINS PARTNERS AS PRINCIPAL - Stock Titan |
| 2023-05-25 | -5.7% | legal | SEC EDGAR | WTM 8-K: 5.02 and (SEC Filing) |
| 2024-08-07 | -4.7% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of -$21.24, revenue of $395.4M |
| 2024-08-07 | -4.7% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2026-03-31 | -4.4% | earnings | MarketBeat | JPMorgan Chase & Co. Buys 1,999 Shares of White Mountains Insurance Group, Ltd. $WTM - MarketBeat |
| 2026-02-05 | +4.1% | news | AD HOC NEWS | White Mountains Insurance Stock: Quiet Climber With A Steady Tailwind - AD HOC NEWS |
| 2026-02-06 | -3.7% | earnings | Associated Press Finance | White Mountains: Q4 Earnings Snapshot |
| 2026-02-06 | -3.7% | news | PR Newswire | WHITE MOUNTAINS REPORTS FOURTH QUARTER RESULTS |
| 2026-02-06 | -3.7% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of $327.23, revenue of $1.60M |
| 2026-02-06 | -3.7% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2024-05-10 | -3.6% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of $92.33, revenue of $647.3M |
| 2026-02-09 | -3.5% | earnings | Simply Wall St. | With EPS Growth And More, White Mountains Insurance Group (NYSE:WTM) Makes An Interesting Case |
| 2025-09-03 | -3.3% | news | Seeking Alpha | White Mountains Insurance: Not Much To Be Excited About |
| 2025-09-03 | -3.3% | legal | SEC EDGAR | WTM 8-K: 8.01 (SEC Filing) |
| 2025-09-03 | -3.3% | news | Seeking Alpha | White Mountains Insurance: Not Much To Be Excited About (WTM) - Seeking Alpha |
| 2025-02-07 | -3.1% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of -$50.78, revenue of $358M |
| 2025-02-07 | -3.1% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2025-09-02 | -2.9% | executive | Seeking Alpha | White Mountains names next CEO |
| 2025-09-02 | -2.9% | legal | SEC EDGAR | WTM 8-K: 5.02 and (SEC Filing) |
| 2025-04-10 | +2.7% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2021-11-08 | +2.7% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2023-10-20 | -2.7% | M&A | Seeking Alpha | White Mountains Insurance to acquire majority stake in Bamboo Ide8 Insurance |
| 2023-10-20 | -2.7% | legal | SEC EDGAR | WTM 8-K: 1.01 and (SEC Filing) |
| 2024-05-12 | -2.5% | earnings | MarketBeat | White Mountains Insurance Group (WTM) Stock Forecast and Price Target 2026 $WTM - MarketBeat |
| 2024-11-06 | +2.5% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of $69.68, revenue of $839.1M |
| 2024-11-06 | +2.5% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2025-08-07 | -2.4% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of $47.75, revenue of $689.2M |
| 2025-08-07 | -2.4% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2024-02-08 | +2.4% | earnings | Seeking Alpha | White Mountains Insurance reports Q4 results |
| 2021-05-02 | +2.4% | news | TradingView | WTM Stock Price and Chart — NYSE:WTM - TradingView |
| 2026-04-13 | -2.3% | news | Simply Wall St. | We Think Waratah Minerals (ASX:WTM) Can Afford To Drive Business Growth |
| 2022-05-26 | -2.2% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2025-02-28 | +2.1% | news | Seeking Alpha | White Mountains Insurance declares $1.00 dividend |
| 2025-01-08 | -2.1% | legal | SEC EDGAR | WTM 8-K: 8.01 (SEC Filing) |
| 2026-04-01 | -2.1% | M&A | PR Newswire | WHITE MOUNTAINS PARTNERS ANNOUNCES ACQUISITION OF BASESIX |
| 2026-04-01 | -2.1% | M&A | Seeking Alpha | White Mountains Partners to acquire BaseSix |
| 2026-04-01 | -2.1% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2026-04-01 | -2.1% | news | Stock Titan | White Mountains (NYSE: WTM) invests $97M for majority stake in BaseSix - Stock Titan |
| 2026-04-01 | -2.1% | legal | Stock Titan | [ARS] WHITE MOUNTAINS INSURANCE GROUP LTD SEC Filing - Stock Titan |
| 2026-04-01 | -2.1% | news | Stock Titan | Building systems installer Basesix gets White Mountains backing - Stock Titan |
| 2026-04-01 | -2.1% | M&A | TipRanks | White Mountains Partners Acquires Majority Stake in BaseSix - TipRanks |
| 2024-05-09 | -2.1% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2024-04-10 | -2.0% | legal | SEC EDGAR | WTM 8-K: 5.02 and (SEC Filing) |
| 2026-03-09 | +2.0% | news | Benzinga | 5 Safe Haven Stocks With Plenty of Upside - Benzinga |
| 2025-07-18 | -2.0% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2026-04-17 | -1.9% | earnings | MarketBeat | White Mountains Insurance Group (NYSE:WTM) Hits New 12-Month High - What's Next? - MarketBeat |
| 2024-11-13 | +1.7% | news | Insider Monkey | Should You Be Confident in White Mountains Insurance Group Ltd (WTM)? - Insider Monkey |
| 2026-04-18 | -1.7% | earnings | MarketBeat | Robeco Institutional Asset Management B.V. Sells 16,616 Shares of White Mountains Insurance Group, Ltd. $WTM - MarketBeat |
| 2026-01-07 | +1.7% | legal | SEC EDGAR | WTM 8-K: 8.01 (SEC Filing) |
| 2025-11-23 | -1.6% | news | webull.com | How White Mountains Insurance Group’s (WTM) Tender Offer and Bamboo Sale Have Changed Its Investment Story - webull.com |
| 2023-02-07 | +1.6% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2026-04-06 | +1.6% | news | Cổng thông tin điện tử tỉnh Lào Cai | Is White (WTM) Stock a Top Performer | Price at $2164.83, Down 0.23% - Reversal Setup - Cổng thông tin điện tử tỉnh Lào Cai |
| 2021-08-06 | +1.6% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2025-11-06 | +1.6% | earnings | Seeking Alpha | White Mountains Insurance Non-GAAP EPS of $44.18, revenue of $864.2M |
| 2025-11-06 | +1.6% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2025-07-07 | +1.5% | news | Seeking Alpha | White Mountains Insurance to buy majority stake in Distinguished Programs |
| 2025-07-07 | +1.5% | legal | SEC EDGAR | WTM 8-K: 1.01 and (SEC Filing) |
| 2023-12-21 | +1.5% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2026-01-13 | +1.5% | news | Yahoo Finance | White Mountains Insurance Group (NYSE:WTM) shareholders have earned a 15% CAGR over the last five years - Yahoo Finance |
| 2022-08-08 | +1.4% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2025-03-13 | +1.4% | news | Seeking Alpha | White Mountains: A High-Quality Insurer At A Fair Price |
| 2025-03-13 | +1.4% | news | Seeking Alpha | White Mountains: A High-Quality Insurer At A Fair Price (NYSE:WTM) - Seeking Alpha |
| 2026-02-27 | +1.4% | news | PR Newswire | White Mountains Declares Annual Dividend |
| 2026-02-27 | +1.4% | news | Seeking Alpha | White Mountains Insurance declares $1.00 dividend |
| 2022-04-01 | -1.3% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2024-02-23 | +1.3% | news | Seeking Alpha | White Mountains Insurance declares $1.00 dividend |
| 2024-02-23 | +1.3% | legal | SEC EDGAR | WTM 8-K: 5.02 and (SEC Filing) |
| 2021-09-13 | -1.3% | legal | SEC EDGAR | WTM 8-K: 8.01 (SEC Filing) |
| 2021-05-10 | -1.3% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2026-03-04 | -1.3% | news | simplywall.st | Is It Too Late To Consider White Mountains Insurance Group (WTM) After Strong Multi‑Year Gains? - simplywall.st |
| 2025-12-22 | +1.3% | news | Stock Titan | Insurer spends $137.7M buying back its own shares at $2,050 - Stock Titan |
| 2025-12-22 | +1.3% | executive | Investing.com | White Mountains Insurance CEO Rountree sells $10.25 million in stock - Investing.com |
| 2025-05-15 | +1.3% | executive | simplywall.st | We Take A Look At Why White Mountains Insurance Group, Ltd.'s (NYSE:WTM) CEO Has Earned Their Pay Packet - simplywall.st |
| 2025-08-27 | -1.1% | news | Yahoo Finance | White Mountains Insurance Group, Ltd. (WTM): A Bull Case Theory - Yahoo Finance |
| 2026-04-04 | +1.1% | earnings | MarketBeat | White Mountains Insurance Group (NYSE:WTM) Cut to Hold at Wall Street Zen - MarketBeat |
| 2026-04-03 | +1.1% | news | simplywall.st | Assessing White Mountains Insurance Group (WTM) Valuation After Recent Mixed Share Price Performance - simplywall.st |
| 2026-02-26 | +1.0% | news | GlobeNewswire | Bishop Street Underwriters Announces Strategic Investment by White Mountains |
| 2026-02-26 | +1.0% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2026-02-26 | +1.0% | news | GlobeNewswire | Bishop Street Underwriters Announces Strategic Investment by White Mountains - GlobeNewswire |
| 2026-04-20 | -1.0% | news | Cổng thông tin điện tử tỉnh Tây Ninh | White (WTM) Stock: Losing Momentum? (-0.23%) 2026-04-20 - Stock News - Cổng thông tin điện tử tỉnh Tây Ninh |
| 2024-01-03 | +1.0% | legal | SEC EDGAR | WTM 8-K: 8.01 (SEC Filing) |
| 2021-12-02 | -0.9% | legal | SEC EDGAR | WTM 8-K: 5.02 and (SEC Filing) |
| 2023-11-06 | -0.9% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2024-09-19 | +0.9% | news | Seeking Alpha | White Mountains: Under-The-Radar Value Builder |
| 2024-09-19 | +0.9% | news | Seeking Alpha | White Mountains: Under-The-Radar Value Builder (NYSE:WTM) - Seeking Alpha |
| 2023-08-07 | -0.9% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of $7.65, revenue of $378.4M |
| 2023-08-07 | -0.9% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2023-12-30 | +0.9% | news | Seeking Alpha | Burford, BGC Group rise, crypto stock rally falters in week's financial movers |
| 2026-04-23 | -0.8% | earnings | MarketBeat | M&T Bank Corp Makes New $38.55 Million Investment in White Mountains Insurance Group, Ltd. $WTM - MarketBeat |
| 2025-02-24 | +0.8% | news | Intellectia AI | WTM Forecast — Price Prediction for 2026. Should I Buy WTM? - Intellectia AI |
| 2022-08-05 | +0.8% | legal | SEC EDGAR | WTM 8-K: 2.01, 8.01 (SEC Filing) |
| 2023-11-07 | +0.8% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of $9.19, revenue of $519.6M |
| 2022-11-07 | -0.7% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2022-05-10 | +0.7% | legal | SEC EDGAR | WTM 8-K: 1.01 and (SEC Filing) |
| 2025-11-04 | +0.7% | earnings | Yahoo Finance | Here’s Why White Mountains Insurance Group Ltd (WTM) Fell in Q3 - Yahoo Finance |
| 2025-04-14 | +0.6% | analyst | Seeking Alpha | White Mountains: With 2 Catalysts, I Am Upgrading It To A Buy |
| 2021-06-29 | -0.6% | legal | SEC EDGAR | WTM 8-K: 8.01 (SEC Filing) |
| 2025-05-07 | -0.6% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2024-03-06 | +0.6% | news | CNN | symbol__ Stock Quote Price and Forecast - CNN |
| 2025-03-30 | +0.6% | news | Seeking Alpha | White Mountains Insurance |
| 2024-03-25 | +0.5% | news | Seeking Alpha | White Mountains Insurance: Sum Of The Parts Points To Potential Upside |
| 2024-01-20 | +0.5% | news | Seeking Alpha | Crypto-tied stocks Marathon, Riot, Coinbase top week's financial movers |
| 2026-03-17 | +0.5% | analyst | Seeking Alpha | White Mountains Insurance: I Maintain My 'Hold' Rating |
| 2026-03-17 | +0.5% | analyst | Seeking Alpha | White Mountains Insurance: I Maintain My 'Hold' Rating (NYSE:WTM) - Seeking Alpha |
| 2025-12-01 | +0.4% | earnings | MarketBeat | Congress Beat the Market Again—Here Are the 3 Stocks They Bought - MarketBeat |
| 2025-12-08 | -0.4% | legal | SEC EDGAR | WTM 8-K: 2.01, 8.01 (SEC Filing) |
| 2024-02-07 | +0.4% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2024-05-08 | -0.4% | legal | Seeking Alpha | MediaAlpha prices secondary offering |
| 2023-05-09 | +0.3% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2023-02-23 | +0.3% | legal | SEC EDGAR | WTM 8-K: 5.02 and (SEC Filing) |
| 2021-05-28 | +0.3% | legal | SEC EDGAR | WTM 8-K: 5.02 and 5.07 (SEC Filing) |
| 2024-05-18 | -0.3% | news | Seeking Alpha | Robinhood posts biggest weekly gain among financial stocks; Burford retreats |
| 2025-07-25 | +0.3% | news | Quiver Quantitative | White Mountains Insurance Group Stock (WTM) Opinions on BroadStreet Investment - Quiver Quantitative |
| 2022-02-08 | -0.3% | legal | SEC EDGAR | WTM 8-K: 2.02 and (SEC Filing) |
| 2026-03-20 | -0.2% | news | Stock Titan | White Mountains (WTM) EVP & General Counsel reports 50-share gift - Stock Titan |
| 2025-07-16 | +0.1% | legal | SEC EDGAR | WTM 8-K: 8.01 and (SEC Filing) |
| 2025-12-03 | +0.1% | news | Yahoo Finance | White Mountains Insurance Group (WTM): Assessing Valuation After a Steady Multi‑Year Share Price Climb - Yahoo Finance |
| 2022-12-21 | +0.1% | legal | SEC EDGAR | WTM 8-K: 8.01 (SEC Filing) |
| 2026-02-17 | -0.0% | earnings | simplywall.st | The Bull Case For White Mountains Insurance Group (WTM) Could Change Following 2025 Profit Rebound And Buyback Completion - simplywall.st |
| 2025-05-08 | +0.0% | earnings | Seeking Alpha | White Mountains Insurance GAAP EPS of $13.19, revenue of $577.8M |
| 2021-10-12 | -0.0% | legal | SEC EDGAR | WTM 8-K: 5.02 and (SEC Filing) |
| 2026-04-26 | — | earnings | MarketBeat | Speece Thorson Capital Group Inc. Has $22.18 Million Stake in White Mountains Insurance Group, Ltd. $WTM - MarketBeat |