10 CME Group operations leaders
Suzanne Sprague, Chief Operating Officer & Global Head of Clearing & Post-Trade Services at CME Group, is one of ten CME Group operations leaders listed here, alongside people who hold managing director, executive director, senior director and director roles in operations there. A reader can learn how operations leaders work at CME Group from people who have held the role.
Professionals to explore
Andrew Weinman
LinkedInExperience: Senior Director, Operations and Settlements · CME Group
Andrew Weinman has been Senior Director, Operations and Settlements at CME Group since November 2018 and also holds the Chief Operations Officer, Director, Secretary, Outsourcing Officer role for BrokerTec Americas LLC there. Andrew Weinman was Chief Operations Officer | BrokerTec Americas LLC at NEX from 2016 to 2018.
Brian Sayers
LinkedInExperience: Executive Director, Clearing Operations & Risk · CME Group
Brian Sayers has been Executive Director, Clearing Operations & Risk at CME Group since March 2018, and the profile also lists a Senior Director, Clearing Operations role there from April 2012. Brian Sayers was Associate Director, Deliveries & Settlement Services at CME Group from 2009 to 2012.
Bruce Sundheim
LinkedInExperience: Director, Global Operations · CME Group
Bruce Sundheim is Director, Global Operations at CME Group, a role the profile lists as current from June 2001, and the profile places the work in the Chicago Global Command Center, new product UAT and existing product data quality. Bruce Sundheim also lists a Manager/Lead III Analyst role at CME Group.
John Harkness
LinkedInExperience: Director Clearing Operations and Risk · CME Group
John Harkness has been Director Clearing Operations and Risk at CME Group since July 2015, and the profile headline reads Senior Director Clearing Operations and Risk. John Harkness was Cash Collateral Management Analyst at Citi from 2014 to 2015 and Calypso Consultant at FD Technologies from 2013 to 2014.
Luke Watson
LinkedInExperience: Senior Director, Operational Readiness & Resilience · CME Group
Luke Watson has been Senior Director, Operational Readiness & Resilience at CME Group since August 2025 and was Director Operational Readiness & Resilience there from 2023 to 2025. Luke Watson was Director, Global Technology Disaster Recovery at CME Group from 2020 to 2023 and Manager Global Problem Management there from 2018 to 2020.
Mark Francetic
LinkedInExperience: Managing Director Product Management and Market Operations · CME Group
Mark Francetic has been Managing Director Product Management and Market Operations at CME Group since November 2022 and was Executive Director - Architecture & Product Management (Post Trade, Risk & Pricing) there from 2014 to 2022. Mark Francetic was Executive Director - Software Development at CME Group from 2008 to 2014.
Michael Lezzo
LinkedInExperience: Director of Operations · CME Group
Michael Lezzo has been Director of Operations at CME Group since January 2016, and the profile headline reads Director of Operations at EBS BrokerTec. Michael Lezzo was a Director at ICAP|BrokerTec from 2003 to 2016 and a Manager at BrokerTec from 1999 to 2003.
Neil Mangalindan
LinkedInExperience: Sr Director - Commodities - Operations and Execution · CME Group
Neil Mangalindan has been Sr Director - Commodities - Operations and Execution at CME Group since August 2025 and was Director - Transformation & Execution there from 2021 to 2025. Neil Mangalindan was Sr Program Manager - Planning and Execution at CME Group from 2018 to 2021 and Program Manager - Strategy and Execution there from 2016 to 2018.
Paul Millhuff
LinkedInExperience: Managing Director, Global Operations · CME Group
Paul Millhuff is Managing Director, Global Operations at CME Group, a role the profile lists as current and dates from February 1991, based in the Greater Chicago Area. Paul Millhuff was an Arbitrage Clerk at the Association of Euro Brokers from 1997 to 1998.
Suzanne Sprague
LinkedInExperience: Chief Operating Officer & Global Head of Clearing & Post-Trade Services · CME Group
Suzanne Sprague has been Chief Operating Officer & Global Head of Clearing & Post-Trade Services at CME Group since November 2024 and was Senior Managing Director, Global Head of Clearing & Post-Trade Services there from 2022 to 2024. Suzanne Sprague was Managing Director, Credit & Liquidity Risk, Risk Policy, & Banking at CME Group from 2019 to 2022.
Choose the right perspective
Pick the person whose operations area is closest to your question, since clearing, settlement, market operations and operational resilience leaders each handle different work. Check when each person started the current role to judge how recent the experience is.
Questions to take into the conversation
- 01What did you focus on first when you took on your current operations leadership role?
- 02How do you prepare an operations team for unusually busy market days?
- 03What has your own work taught you about balancing speed and control in post-trade operations?
Reaching CME Group operations leaders
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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