Mr. Hoffman is the Founder and Partner at Stone Capital Partners, a private equity firm focused on power and renewable energy. Before founding Stone Capital Partners, Mr. Hoffman was a Partner of Riverstone, where he was principally responsible for investments in power and renewable energy for Riverstone’s funds. Riverstone is an energy and power focused private equity firm founded in 2000 with approximately $37 billion of equity capital raised across seven investment funds, including the world’s largest renewable energy fund. Mr. Hoffman was co-head of Riverstones Renewable Energy Funds I and II and was responsible for all power investments in its six conventional energy funds, with equity capital commitments of approximately $6 billion. In his capacity as a Partner at Riverstone, he sat on the public company boards of Enviva, Pattern Energy Group, Talen Energy and Buckeye Pipeline Company as well as several private company boards for Riverstone in the energy sector. Before joining Riverstone in 2003, Mr. Hoffman was Partner and head of the mergers and acquisitions advisory business of The Blackstone Group for fifteen years, where he also served on the firm’s principal group investment committee as well as its executive committee. Prior to joining Blackstone, Mr. Hoffman was managing director and co-head of the mergers and acquisitions department at Smith Barney, Harris Upham & Co. Mr. Hoffman is also the Chairman of Onconova Therapeutics, a publicly-traded oncology company. He is also Chairman of QR Pharma, a company developing compounds for neurodegenerative disorders such as Parkinsons and Alzheimers and also serves as Chairman and Founder of Curative BioTherapeutics, which is developing oncology drugs in the CAR-T and antibody space for AML. Mr. Hoffman is a co-author of the book, “Green: Your Place in the New Energy Revolution”. In February 2014, Mr. Hoffman joined the Board of Rockefeller University and is on its Technology Transfer Committee. Mr. Hoffman received his B.A. and M.A. from Northwestern University and his M.B.A. from Harvard Business School. He is married to Jane Steiner Hoffman and has two children.