Your browser is not supported!

Please try one of these browsers:

Chrome, Firefox, IE9+

Martin Mannion

Martin Mannion


Marty Mannion is Co-CEO of Headlands Tech Global Markets, LLC ("HTGM"), a FINRA registered broker dealer that has grown into one of the leading liquidity providers in the fixed income markets.

Prior to joining Headlands, Mr. Mannion was Chief Operating Officer and Managing Director of Citadel Execution Services ("CES"), the U.S. equity market making and equity options routing division of Citadel Securities. Mr. Mannion joined CES in 2004, and during his 8+ year tenure helped to build the division into one of the leading liquidity and execution providers in U.S. listed equities and equity options. These businesses executed more than 30% of US retail equity trades and 40% of US retail options trades.

Prior to joining Citadel, Mr. Mannion worked at the NASDAQ Stock Market in a variety of positions, including the Transaction Services group.

Mr. Mannion served on several boards, including: DirectEdge Holdings, an electronic trading system for U.S.-listed equities (now part of CBOE Global Markets); EASDAQ, which owned and operated Equiduct Systems Ltd., an electronic exchange for European equities; and NYSE Amex, the NYSE-operated U.S. listed equity options exchange.

Mr. Mannion served on the FINRA Fixed Income Committee and speaks regularly at industry events on market structure, trading and regulatory developments in the fixed income markets.

Mr. Mannion holds a B.A. in International Affairs from George Washington University in Washington, DC.