secwatch.observer — SEC 8-K summary ====================================== Issuer: WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) CIK: 0000776867 Form: 8-K Filed at: 2023-12-21T23:59:59+00:00 Accession: 0000776867-23-000018 Event type: other_material Sentiment: positive Materiality: 0.65 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 White Mountains renews $250M Outrigger Re sidecar; WTM commits $130M for 2024 ----------------------------------------------------------------------------- - Outrigger Re Ltd. renewed on similar terms as 2023 for Ark's global property catastrophe portfolio starting Jan 1, 2024. - Total investor capital: $250M, including $130M from White Mountains and remaining from new/continuing third-party investors. - Management cites new investor interest as recognition of Ark's strong execution in the ongoing hard market. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/776867/000077686723000018/0000776867-23-000018-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/776867/000077686723000018/wtm-20231221.htm HTML page: https://secwatch.observer/filing/0000776867-23-000018 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer