Nelson Peltz is an American businessman and investor, known for his role as a prominent activist shareholder. He is the co-founder and CEO of Trian Fund Management, a multi-billion dollar investment firm that focuses on improving the performance of companies through strategic changes. Peltz has served on the boards of several major corporations, including Procter & Gamble and Unilever. His investment strategies often involve pushing for operational improvements and cost-cutting measures to enhance shareholder value. Peltz is recognized for his ability to influence corporate governance and drive change in large organizations.