Aaron Hantman is a founding partner and CEO of Tourmaline Partners. Since the firm launched in 2011, Aaron has overseen all aspects of the business, growing it into the worldwide leader in the outsourced trading space. Under his direction, Tourmaline pioneered the industry’s supplemental trading model for the largest buy-side firms, and secured a majority investment from Copley Equity Partners in 2020. In addition to his management responsibilities, Aaron was responsible for the supervision, build-out and expansion of Tourmaline’s listed derivatives business.
Prior to co-founding Tourmaline Partners, Aaron built a distinguished 12-year career at Susquehanna International Group (SIG) as the CEO and President of Susquehanna Financial Group, while also holding the position of Global Head of Institutional Sales. During his earlier years at SIG, he served as Head Trader and manager of SIG’s NYSE operations, and began his career in equity derivatives and OTC trading.
Aaron earned his B.S. in Biology from Yale University.