secwatch.observer — SEC 8-K summary ====================================== Issuer: WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) CIK: 0000776867 Form: 8-K Filed at: 2025-04-10T23:59:59+00:00 Accession: 0000776867-25-000004 Event type: m_and_a Sentiment: positive Materiality: 0.60 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 White Mountains invests $150M alongside Ethos Capital and BCI in BroadStreet Partners -------------------------------------------------------------------------------- - White Mountains to invest $150M as co-lead investor with Ethos Capital and BCI for ownership stake in BroadStreet. - BroadStreet is a leading North American insurance brokerage with co-ownership model across 30 Core Agency Partners. - Ontario Teachers' Pension Plan retains significant co-control stake and continues as partner. - Investment supports BroadStreet's technology and digital transformation initiatives. - BroadStreet operates in all 50 U.S. states and 10 Canadian provinces. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/776867/000077686725000004/0000776867-25-000004-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/776867/000077686725000004/wtm-20250410.htm HTML page: https://secwatch.observer/filing/0000776867-25-000004 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer