Richard J Mark, Chmn & President of Subsidiary at Ameren, holds 33.30K shares in Tenet Healthcare (Ticker: THC), holds 1.81K shares in Sempra Energy (Ticker: SRE), holds 158.24K shares in Ameren (Ticker: AEE). Most recently, Richard J Mark Sold ― shares of Tenet Healthcare on Mar 14, 2024 for an estimated value of 1.39M.