ALTERRA CAPITAL HOLDINGS LTD FILES (8-K) Disclosing Other Events

Item 8.01 Other Events.

On June 20, 2012, the Registrant issued a news release announcing the formation of New Point V Limited ("New Point V"), an addition to its series of sidecar vehicles that has been established to create additional capacity for the property catastrophe collateralized reinsurance marketplace. New Point V is sponsored by the Registrant in partnership with Stone Point Capital LLC ("Stone Point") through its private equity fund, Trident V, L.P. and its affiliates. New Point V currently has capital commitments from its sponsors and additional investors of approximately $210 million, including $75 million from the Registrant and $75 million from affiliates of Stone Point. The news release is attached hereto as Exhibit 99.1.

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