secwatch.observer — SEC 8-K summary
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Issuer:     WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)
CIK:        0000776867
Form:       8-K
Filed at:   2025-10-03T23:59:59+00:00
Accession:  0001628280-25-044062
Event type: m_and_a
Sentiment:  positive
Materiality: 0.85
Item codes: 1.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

White Mountains sells ~77% of Bamboo to CVC at $1.75B enterprise value
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- White Mountains will sell ~77% equity interest in Bamboo to CVC, retaining ~15% fully-diluted stake.
- Transaction values Bamboo at $1.75 billion enterprise value; net cash proceeds expected ~$840M.
- White Mountains expects a gain of approximately $310 per share to book value from the sale.
- Closing expected Q4 2025, subject to regulatory approvals; no shareholder vote required.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/776867/000162828025044062/0001628280-25-044062-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/776867/000162828025044062/wtm-20251002.htm
  HTML page:      https://secwatch.observer/filing/0001628280-25-044062

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer