secwatch.observer — SEC 8-K summary ====================================== Issuer: WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) CIK: 0000776867 Form: 8-K Filed at: 2023-10-20T23:59:59+00:00 Accession: 0000776867-23-000014 Event type: m_and_a Sentiment: positive Materiality: 0.75 Item codes: 1.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 White Mountains to acquire ~70% of Bamboo for ~$285M; California homeowners MGA ------------------------------------------------------------------------------- - White Mountains to invest approx. $285M for ~70% of Bamboo, a California homeowner MGA. - Bamboo insures over 100,000 California policyholders; founded in 2018 by John Chu. - John Chu and current management will continue leading the business with a significant equity stake. - Transaction expected to close Q1 2024, subject to regulatory approvals; no financing condition. - White Mountains' final ownership could range from 62% to 81% based on unitholder rollovers. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/776867/000077686723000014/0000776867-23-000014-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/776867/000077686723000014/wtm-20231019.htm HTML page: https://secwatch.observer/filing/0000776867-23-000014 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer