Joel S. Marcus is Executive Chairman and Founder of Alexandria Real Estate Equities, Inc., a pioneering life science REIT and S&P 500 company with a total market capitalization of $29 billion and approximately 40 million RSF of operating assets in North America. Since co-founding Alexandria in 1994 with a $19 million Series A, he has delivered a long-term total shareholder return of 1,199% as of December 31, 2024. 

Mr. Marcus also leads Alexandria Venture Investments, founded in 1996, with approximately $1.5 billion under management. Notable early-stage investments include Alnylam Pharmaceuticals, Google, Intra-Cellular Therapies, and Moderna. 

He co-founded the Alexandria Summit® in 2011 and has led initiatives including OneFifteen, a full continuum of care model to treat addiction, developed in partnership with Verily. He serves on the boards of the 9/11 Memorial & Museum, Navy SEAL Foundation, National Medal of Honor Museum, and TOPGUN Association. 

Mr. Marcus received his undergraduate and Juris Doctor degrees from UCLA.