7,500,000 Shares COMMONWEALTH REIT (a Maryland real estate investment trust) Common Shares of Beneficial Interest par value $.01 per share PURCHASE AGREEMENTPurchase Agreement • September 21st, 2010 • CommonWealth REIT • Real estate investment trusts • Maryland
Contract Type FiledSeptember 21st, 2010 Company Industry JurisdictionThis letter shall terminate and be of no further force and effect unless the Purchase Agreement has been entered into and dated not later than September , 2010.