Markel Corporation Loss Form

(a) Markel lacked effective reporting controls and was not reporting its financial results in compliance with Generally Accepted Accounting Principles (“GAAP”); (b) the Company’s wholly-owned subsidiary Markel CATCo Investment Management Ltd. (“MCIM”) was not appropriately recording loss reserves; (c) as a result, MCIM’s loss reserves would need to be adjusted and/or restated; (d) these accounting practices would lead to regulatory scrutiny and financial loss to investors; and (e) as a result of the foregoing, defendants’ positive statements during the Class Period were materially false and misleading and/or lacked a reasonable basis.