Lindsay A. Rosenwald, M.D.

Lindsay A. Rosenwald, M.D.

Chairman, President and Chief Executive Officer

Dr. Rosenwald has served as a member of the Board of Directors since October 2009 and as Chairman, President and Chief Executive Officer of the Company since December 2013. Dr. Rosenwald also serves as a director of Mustang Bio, Inc., Chairman of the Board of Directors of Avenue Therapeutics, Inc., and a director of Checkpoint Therapeutics, Inc. From November 2014 to August 2015, he served as Interim President and Chief Executive Officer of Checkpoint Therapeutics, Inc. From 1991 to 2008, Dr. Rosenwald served as the Chairman of Paramount BioCapital, Inc. Over the last 25 years, Dr. Rosenwald has acted as a biotechnology entrepreneur and has been involved in the founding and recapitalization of numerous public and private biotechnology and life sciences companies. Dr. Rosenwald received his B.S. in Finance from Pennsylvania State University and his M.D. from Temple University School of Medicine.

Michael S. Weiss

Michael S. Weiss

Executive Vice Chairman, Strategic Development

Mr. Weiss has served as our Executive Vice Chairman, Strategic Development since February 2014. Mr. Weiss also serves as Executive Chairman of the Board of Directors of Mustang Bio, Inc. and Chairman of the Board of Directors of Checkpoint Therapeutics, Inc. Since December 2011, Mr. Weiss has served in multiple capacities at TG Therapeutics, Inc. and is currently its Executive Chairman, Chief Executive Officer and President. Mr. Weiss earned his J.D. from Columbia Law School and his B.S. in Finance from the University at Albany. He began his professional career as a lawyer with Cravath, Swaine & Moore LLP. In 1999, Mr. Weiss founded Access Oncology which was acquired by Keryx Biopharmaceuticals (NASDAQ: KERX) in 2004. Following the merger, Mr. Weiss remained as Chief Executive Officer of Keryx.

David Jin

David Jin

Chief Financial Officer and Head of Corporate Development

Mr. Jin has served as our Chief Financial Officer since August 2022 and as Head of Corporate Development since May 2020. He also serves as Interim Chief Financial Officer and Chief Operating Officer of Avenue Therapeutics, Inc. (a Fortress partner company). Previously, he was on the investment team in the Private Equity & Real Assets group at Barings, Director of Corporate Development at Sorrento Therapeutics, Vice President of Healthcare Investment Banking at FBR & Co., and was in the management consulting group at IMS Health (now IQVIA). He holds a B.S. in Industrial Engineering & Management Sciences with a double-major in Mathematical Methods in the Social Sciences from Northwestern University.

George Avgerinos, Ph.D.

George Avgerinos, Ph.D.

Senior Vice President, Biologics Operations

Dr. Avgerinos has served as our Senior Vice President, Biologics Operations since June 2013. Dr. Avgerinos joined us from AbbVie, Inc., where he was Vice President, HUMIRA® Manufacturing Sciences and External Partnerships. In his 22-year career at AbbVie, Inc., formerly Abbott Laboratories, formerly BASF Bioresearch Corporation (BASF), Dr. Avgerinos was responsible for many aspects of biologics development and operations. These included the HUMIRA® operations franchise, global biologics process and manufacturing sciences, biologics CMC, manufacturing operations and third-party manufacturing. During his tenure, Dr. Avgerinos led and participated in the development of numerous clinical candidates, which included the launch of HUMIRA®. He supported expansion of the supply chain to over $9.0 billion in annual global sales. Dr. Avgerinos' efforts on HUMIRA® have been recognized with numerous awards, including the prestigious Abbott's Chairman's award in 2011. Dr. Avgerinos received a B.A. in Biophysics from the University of Connecticut and a Ph.D. in Biochemical Engineering from the Massachusetts Institute of Technology.

Samuel Berry

Samuel Berry

General Counsel and Corporate Secretary

Mr. Berry joined our legal team in June 2016 and has served as our General Counsel and Corporate Secretary since September 2018. He also serves as internal counsel to the majority of our subsidiaries and partner companies. Prior to joining Fortress, he was an associate attorney in the Corporate & Securities group of Mayer Brown LLP, where he specialized in mergers and acquisitions, licensing, venture capital and capital markets transactions. Mr. Berry earned his J.D., cum laude, from The University of Michigan Law School and his B.A., cum laude, from Georgetown University.