Stephanie Zapata Moore serves as Executive Vice President, General Counsel, and Chief Compliance Officer at Vistra Corp, the largest competitive power generator in the United States. In this pivotal role, she oversees all legal, regulatory, and compliance matters for the Fortune 500 company, guiding its operations across retail electricity, power generation, and sustainable energy solutions. Moore joined Vistra in 2021, bringing her extensive expertise to support the company's strategic growth, including major acquisitions and its transition toward cleaner energy portfolios. With over 25 years of experience in the energy sector, Moore previously held the position of Executive Vice President and General Counsel at NRG Energy, Inc., where she managed global legal functions, led complex mergers and acquisitions, and navigated high-stakes regulatory challenges. Earlier in her career, she served in senior legal roles at Calpine Corporation, honing her skills in corporate governance, litigation, and energy policy. Her achievements include spearheading multibillion-dollar transactions and fostering robust compliance programs that mitigated risks in volatile markets. Moore is a graduate of the University of Houston Law Center and holds a bachelor's degree from the University of Texas at Austin. Recognized as a leading legal executive, she is committed to diversity and inclusion in the legal profession and actively advises on ethical leadership in the energy transition. Under her stewardship, Vistra has strengthened its compliance framework, enabling resilient operations amid evolving environmental regulations and market dynamics.