Blue Mountain Capital Management

Blue Mountain Capital Management

Andrew Feldstein founded Blue Mountain Capital in 2003 after working at the Federal Reserve Bank of New York. The firm is structured as an alternative asset manager with a multi-strategy approach, not a traditional hedge fund tied to a single fortune. Feldstein serves as CEO and Chief Investment Officer, while Stephen Siderow acts as President. No single family office provides the capital base; Blue Mountain raises externally from institutions. The firm deploys capital across equities, credit, macro strategies and private investments. Public record reflects holdings in corporate bonds, structured credit, real estate and infrastructure. Portfolio companies and deals are not widely disclosed, but the firm's 13F filings show positions in major US equities. Geographic focus is primarily North America with select European exposures. Team size is not publicly disclosed. The firm operates from a single New York City office. There is no publicly known foundation or philanthropy arm tied to Blue Mountain. In February 2023, the firm returned capital from its flagship hedge fund to investors, signaling a shift in strategy (per Financial Times, 2023). Blue Mountain's structural differentiator lies in its emphasis on transparency and liquidity for institutional investors. Unlike many hedge funds, it offers quarterly liquidity and detailed risk reporting. The firm originates credit deals through direct origination rather than secondary market purchases alone.