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WTM WHITE MOUNTAINS INSURANCE GROUP LTD Company Mergers 8-K Filing

WHT

WTM

WHITE MOUNTAINS INSURANCE GROUP LTD

(WTM)

2026 8-K

Financial Results Announcement

Acquisition Announcement

Capital Investment Complete

Financial Results Report

Renewal Announcement

Asset Sale Completed

Financial Results Report

Equity Sale Agreement

Acquisition Complete

Management Changes

Financial Statements

Equity Investments

Credit Agreement

Asset Acquisitions

Investor Meetings

Financial Statements

Investment Announcement

Financial Results

Reinsurance Renewal

Financial Results

Financial Results Announcement

Regulation FD Disclosure

Annual General Meeting

Financial Results Announcement

Appointment of Giles E. Har...

Appointment and Retirement

Financial Results Announcement

Merger with Bamboo IDE8 Ins...

Renewal Announcement

Financial Results Announcement

Merger Agreement with Bambo...

Financial Results Announcement

Regulation FD Disclosure

Earnings Reports

Appointment and Retirement

Financial Results Announcement

Appointment of Director

Financial Results Announcement

External Links:

On January 7, 2026, White Mountains Insurance Group announced the renewal of Outrigger Re Ltd. with Ark Insurance Holdings for the 2026 underwriting year, with $70 million in investor capital deployed, similar to 2025 terms. This renewal marks a reduction in size due to increased usage of traditional quota share reinsurance by Ark.

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WHITE MOUNTAINS INSURANCE GROUP LTD

2026

8 K

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