X0304 4 2011-12-13 0001097264 ALLOS THERAPEUTICS INC ALTH 0001237794 STOUT DAVID M 11080 CIRCLEPOINT RD. SUITE 200 WESTMINSTER CO 80020 1 Common Stock 2011-12-13 4 A 0 35000 0 A 35000 D Represents shares of common stock issued as restricted stock units ("RSUs") awarded under the Company's 2008 Equity Incentive Plan (the "Plan"). The RSUs vest in full on the first anniversary measured from the Vesting Commencement Date. The vested RSU shares will be delivered to the Reporting Person on such anniversary of the Vesting Commencement Date, provided that at the relevant vesting dates the Reporting Person's continuous service to the Company has not been terminated as defined in or as determined under the Plan. /s/ David C. Clark, attorney-in-fact for David M. Stout 2011-12-15