Mary Teresa Barra has served as chair and chief executive officer of General Motors since January 15, 2014, making history as the first female CEO of a 'Big Three' automaker. Named to succeed Daniel Akerson in December 2013, Barra brought extensive automotive industry experience to the role, having previously served as executive vice president of global product development, purchasing, and supply chain at GM.

Under her leadership, Barra has guided one of the world's largest automotive companies through significant industry transformation. Her background in product development and supply chain management has positioned her to navigate the complex challenges facing the automotive sector, from technological advancement to global manufacturing operations.

As both chair and CEO, she oversees GM's strategic direction while managing day-to-day operations of the multinational corporation.