Fairfax Financial Holdings Limited is a Canadian financial holding company based in Toronto, Ontario, engaged in property, casualty, insurance and reinsurance, investment management, and insurance claims management. The company operates primarily through several subsidiaries, including Allied World, Odyssey Re, Northbridge Financial, Crum & Forster, Verassure Insurance, Onlia Agency Inc., and Zenith Insurance Company. The company was also the largest shareholder of Torstar with 40% of the Class B shares, as of May 2020. Fairfax is led by chairman and CEO Prem Watsa, who controls nearly half of the firm. Wikipedia