Ellen Greene

Head of Business Development and Market Structure Strategy, IMC Trading

Ellen Greene is Head of Business Development and Market Structure Strategy at IMC Trading, a global proprietary trading firm. In this role, she focuses on market structure issues, regulatory developments, and exchange affairs.

Before joining IMC in March 2025, Ellen was Managing Director of Equity and Options Market Structure at SIFMA, where she led advocacy on key regulatory and policy initiatives, advised member committees, and directed SIFMA’s engagement on the Consolidated Audit Trail (CAT). Earlier in her career, she served as Vice President of Transaction Services at Nasdaq, managing broker-dealer relationships and supporting the growth of its U.S. equity and options markets. She also held roles at the American Stock Exchange and began her career on the equity syndicate desk at Merrill Lynch.

Ellen chairs the Listed Options Market Structure Working Group (LOMSWG) and is active in SIFMA and FIA PTG. She holds an MBA from NYU’s Stern School of Business and a BA from Colby College.