X0306 4 2012-11-19 0 0000070318 TENET HEALTHCARE CORP THC 0001441365 Ruff Gary K. 1445 ROSS AVENUE SUITE 1400 DALLAS TX 75202 0 1 0 0 SVP and General Counsel Common Stock 2012-11-19 4 S 0 2500 27.154 D 21235 D All share amounts and price data in this Form 4 have been restated to reflect a one-for-four reverse stock split effective as of October 11, 2012 (the "Reverse Stock Split"). In the reporting person's Form 4 filed on November 16, 2012, the option transaction information reflected the Reverse Stock Split, while the amount of securities reported as beneficially owned following the option transactions reported in that Form 4 did not reflect the Reverse Stock Split. The shares were sold in open market broker transactions. The reporting person continues to meet the Company's stock ownership guidelines. /s/ Kristina A. Mack, Attorney-in-Fact for Gary K. Ruff 2012-11-20