BlackBerry Sold to Canadian Insurance Company Fairfax Financial

BlackBerry agreed in principal Monday to be acquired by Fairfax Financial, a Canadian insurance company, for $9 a share in a deal worth $4.7 billion in US dollars.
Fairfax Financial, sometimes called the Berkshire Hathaway of Canada, is a holding company whose primary business is in insurance. Fairfax is also BlackBerry's largest shareholder.