Biography Photo Mitchell S. Steiner M.D., F.A.C.S
Chief Executive Officer and Vice Chairman of our Board of Directors

Dr. Steiner, a co-founder of GTx, has served as our Chief Executive Officer and Vice Chairman of our Board of Directors since the company's inception in September 1997 and also serv... 

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Biography Photo Marc S. Hanover
President and Chief Operating Officer

Mr. Hanover, a co-founder of GTx, has served as our President and Chief Operating Officer since the company's inception in September 1997.  

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Biography Photo Mark E. Mosteller, CPA
Vice President, Chief Financial Officer

Mr. Mosteller has served as our Chief Financial Officer since August 2001 and was appointed Vice President on January 20, 2005. From April 1997 to August 2001, Mr. Mosteller was an... 

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Biography Photo Henry P. Doggrell
Vice President, Chief Legal Officer and Secretary

Mr. Doggrell currently serves as our Vice President, Chief Legal Officer and Secretary, after joining GTx in October 2001 as General Counsel and Secretary. From April 1998 to August 2001, Mr. Doggrell wa... 

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Biography Photo James T. Dalton., Ph.D
Vice President, Chief Scientific Officer

Dr. Dalton served as Vice President, Preclinical Research and Development from January 2005 to December 2010, when he was promoted to Chief Scientific Officer. Dr. Dalton served as ... 

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Biography Photo Mary Ann (Mayzie) Johnston, PharmD
Vice President, Medical Affairs

Dr. Johnston was appointed Vice President, Medical Affairs in November 2012. Dr. Johnston has over 10 years of pharmaceutical experience, most recently at GTx, Inc., where she served as Director, Medical Affairs... 

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Biography Photo Jeff Hesselberg
Vice President, Regulatory Affairs

Mr. Hesselberg was appointed Vice President, Regulatory Affairs in May 2007. He joined GTx from ICOS Corporation, where from 1996 to May 2007 he served as Manager, Associate Directo... 

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Biography Photo Domingo Rodriguez, M.D.
Vice President, Clinical Operations

Dr. Rodriguez was appointed Vice President of Clinical Operations of GTx, Inc. in May 2008. Prior to his appointment, Dr. Rodriguez was the Director of Clinical Operations since Oct... 

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