Team members (9 of 56)
Douglas Colkitt
Quantitative Researcher
Jasper Zhang
Quantitative Researcher
Jonathan Chan
Options Trader
Tal Broda
Head of Engineering Services
Loren Siebert
Data Engineer
Brett Harrison
Head of ETF Technology
Ryan Vangrack
General Counsel (Americas)
Nicholas Scalabrino
Senior Vice President, Citadel Execution Services (CES)
Michael A. Sukenik
Senior Vice President, Business Analytics
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