X0303 4 2011-02-23 0 0000070318 TENET HEALTHCARE CORP THC 0001217839 PORTER BIGGS C 1445 ROSS AVENUE SUITE 1400 DALLAS TX 75202 0 1 0 0 Chief Financial Officer Common Stock 318346 D Common Stock 25000 I By Trust 2011 February Restricted Stock Units 2011-02-23 4 A 0 95109 0.00 A Common Stock 95109 95109 D (BP) On February 23, 2011, the reporting person also received a grant of 95,109 performance restricted units. This grant is subject to the issuer's attainment of a specified one-year performance metric for the year ending December 31, 2011. If the performance metric is not met, the grant will be forfeited. If the performance metric is met, the grant will vest ratably over a three-year period from the grant date. These restricted units vest ratably on each of the first, second and third anniversaries of the date of grant. Restricted units are settled in shares of the Company's common stock upon vesting. /s/ Kristina A. Mack, Attorney-in-Fact for Biggs C. Porter 2011-02-25