Ryan became Chief Legal and Business Officer in 2025, previously serving as General Counsel since joining atai in 2020.

For more than a decade, Ryan has served on the executive teams of public and private biotechnology companies where he was responsible for building and leading the legal, corporate development, and intellectual property functions.

Ryan is an attorney admitted to the bar of the Commonwealth of Massachusetts. He holds a B.S. in biochemistry and a B.A. in Italian language from Trinity College. He received his Juris Doctor (JD) from Case Western Reserve University School of Law and holds a B.S. in biochemistry and a B.A. in Italian language from Trinity College.