Jack Byrne takes Fireman’s Fund public at $25.75 per share.
Fireman’s Fund is sold to Allianz. The remaining holding company and residual assets form the starting point for the future White Mountains.
White Mountains invests in and sponsors the IPO of financial guarantor Financial Security Assurance (FSA).
White Mountains acquires 50% of Folksamerica Re. The remaining stake is acquired in 1998.
White Mountains redomiciles from Delaware to Bermuda, a leading international insurance center.
Amid the fallout of the dot-com bubble, White Mountains makes its initial investment in direct to consumer online auto insurer Esurance.
FSA is acquired by Belgian-French bank Dexia Credit, Europe’s largest municipal lender.
In a transformational transaction, White Mountains acquires CGU’s U.S. insurance operations (renamed OneBeacon) with significant financing and reinsurance provided by Berkshire Hathaway.
White Mountains sponsors the creation of Montpelier Re, replenishing reinsurance capacity in Bermuda after the terrorist attacks of September 11.
Montpelier Re goes public.
White Mountains acquires Sweden-based global reinsurer Sirius International from ABB and later combines this with Folksamerica Re to create Sirius Group.
White Mountains leads a consortium of private investors in the acquisition of Safeco’s life operations (renamed Symetra).
OneBeacon goes public.