Steve Mandel

Steve Mandel is the founder and managing partner of Lone Pine Capital, an American hedge fund based in Greenwich, Connecticut. Known for his value-oriented investment philosophy, Mandel has built a reputation for successfully navigating complex market environments. His firm focuses on long/short equity strategies and has established a diverse portfolio across various sectors, emphasizing technology and consumer cyclicals. Lone Pine Capital operates with a global outlook, maintaining offices in major financial hubs including New York City, London, and San Francisco. The firm employs a research-driven approach to identify undervalued companies and capitalize on market inefficiencies. With a strong emphasis on fundamental analysis, Mandel and his team aim to deliver consistent returns while managing risk effectively. Recent disclosures reveal a dynamic trading pattern, with significant position adjustments between February 14, 2025, and May 15, 2026. The firm has executed a total of 200 disclosures, reflecting a mix of position increases and reductions, with the largest disclosed move being an exit from Meta valued at approximately $971 million. The portfolio prominently features technology stocks, including Microsoft Corp and Amazon.com, highlighting the firm's strategic focus in this sector.