Mario Gabelli

Mario Joseph Gabelli is an influential American stock investor and the founder, chairman, and CEO of GAMCO Investors, an investment firm based in Rye, New York. With a career spanning several decades, Gabelli is known for his value investing philosophy and his focus on fundamental analysis. He has accumulated significant wealth through his successful investment strategies, earning over $750 million in compensation from his firm. GAMCO Investors, formerly Gabelli Asset Management Company, provides investment advice and brokerage services to mutual funds, institutional, and select investors. The firm emphasizes a value-oriented approach, seeking to identify undervalued companies with strong growth potential. Gabelli's investment strategy often involves deep analysis of financial statements and market conditions to uncover hidden opportunities. The disclosed trading record for Mario Gabelli through GAMCO Investors reveals a total of 600 disclosures, with notable recent activity including position reductions and exits. The latest filing on May 14, 2026, showed a significant trim in holdings, particularly with Herc Holdings Inc (HRI), where a value of approximately $61.4 million was reduced. The firm has engaged in numerous transactions across various sectors, with a particular focus on Industrials and Financial Services.