HAMILTON, Bermuda, Oct. 1, 2020 /PRNewswire/ — White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today that it has entered into a definitive agreement to invest fresh capital in and to acquire a majority interest in Ark Insurance Holdings Ltd, the ultimate parent company of Ark Syndicate Management Limited.

Ark is a leading Lloyd’s platform well positioned to take advantage of the hardening market in property & casualty insurance.  Founded in 2007 by Ian Beaton and Nick Bonnar, Ark manages the underwriting of syndicates 4020 and 3902 at Lloyd’s. The syndicates underwrite a diversified and balanced portfolio of reinsurance and insurance, including property, accident & health, energy, marine and political risks.  Ark currently has approximately $500 million of stamp capacity.  With White Mountains’ capital, Ark plans to grow its business substantially by (i) increasing aligned capacity at its Lloyd’s syndicates to 100%, (ii) increasing overall stamp capacity, (iii) converting