Company: THC
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0001193125-25-079143
Chunk: 15

Company: TENET HEALTHCARE CORP
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 15
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 Group, Inc. |

| 16 |

Director Nominees

| Richard J. Mark                                     |     |                          |
| Former Chairman & President Ameren Illinois Company |     | Director Since 2017      |
| Board Committees Audit ESG Human Resources          |     | Independent Yes   Age 69 |

Career Highlights:

| • |     | Mr. Mark retired in August 2022 as Chairman and President of Ameren Illinois Company, a multi-billion dollar energy and utility company responsible for electric and natural gas distribution to more than 1.2 million electric and 800,000 natural gas customers in Illinois. |

| • |     | He joined Ameren in 2002 as Vice President of Customer Service before moving up to various senior management roles. |

| • |     | Before joining Ameren, Mr. Mark served for 11 years at Ancilla Systems Inc. While at Ancilla, the parent company to St. Mary’s Hospital in East St. Louis, Illinois, he served as Vice President for Governmental Affairs and Chief Operating Officer before becoming Chief Executive Officer of St. Mary’s Hospital in East St. Louis, Illinois from 1994 to 2002. |

| • |     | He served as Director of Union Electric Company from 2005 until 2012 and was Chairman of Ameren Illinois (both subsidiaries of Ameren Corporation) from 2012 to 2022. |

| • |     | Mr. Mark earned his B.S. from Iowa State University and his M.S. from National Louis University. |

Skills and Qualifications:

| • |     | Mr. Mark offers the Board extensive experience as former Chairman and President of Ameren Illinois, a company in a highly regulated industry, in addition to multiple leadership positions at an acute care hospital, including service as Chief Executive Officer. |

Other Current Public Company Directorships:

| • |     | Sempra |

| 2025 PROXY STATEMENT |     | 17 |

Director Nominees

| Tammy Romo                                                   |     |                          |
| Former Executive Vice President & CFO Southwest Airlines Co. |     | Director Since 2015      |
| Board Committees Audit (Chair) Human Resources               |     | Independent Yes   Age 62 |

Career Highlights:

| • |     | Ms. Romo retired in April 2025 as Executive Vice President and Chief Financial Officer of Southwest Airlines Co., a major passenger airline, where she was responsible for corporate strategy and overall finance activities, including reporting, accounting, investor