X0303 4 2010-12-16 0 0000766701 CAPSTEAD MORTGAGE CORP CMO 0001273819 BROWN MIKE 8401 N. CENTRAL EXPRESSWAY SUITE 800 DALLAS TX 75225 0 1 0 0 Senior Vice President Common Stock 2010-12-16 4 A 0 13129 0 A 116806 D The unvested stock awards, granted from the Amended and Restated 2004 Flexible Long-Term Incentive Plan, vest 50% at the end of year three provided certain performance criteria are met. The remaining 50% vest at the end of year four, assuming the same criteria. If the criteria are not met, the shares do not vest but are eligible for vesting at the end of the following year until the end of year 7, if the criteria are not earlier met. Unlike unvested stock awards previously granted by the Company, recipients of these awards are not entitled to receive dividends associated with these shares on a current basis. Dividends associated with these shares will only be paid upon vesting of the awards. Mike Brown 2010-12-17