Marex Group Executive and Leadership Team

June, 2026

Leadership Overview

Marex Group has 7 executives leading key functions including operations, regional strategy, and administrative oversight.

Driven by a commitment to client success, Marex Group provides essential liquidity, market access, and infrastructure services across global energy, commodities, and financial markets, solidifying its position as a vital partner.

Leadership Roles at Marex Group

  • Chief Executive Officer (Americas) - Ram Vittal
  • Chief Executive Officer (APAC) - Arthur Fan
  • Chief Operating Officer - ANZ - Robert Khoury
  • President - Bill Kunmann
  • Group President, The Leese Trading - Eric Leese
  • Chief Operations Officer - John McKoane
  • Chief Administrative Officer (Americas) - Sarah Masterson
  • Ram Vittal - Chief Executive Officer (Americas)

    Ram Vittal, the Chief Executive Officer (Americas) at Marex Group, spearheads the strategic direction and operational oversight for the Americas region. Vittal drives the expansion of Marex's diversified global financial services platform, ensuring clients receive essential liquidity, market access, and infrastructure services. This role involves cultivating key relationships with clients in the energy, commodities, and financial markets across North and South America. Ram Vittal's leadership ensures the effective deployment of technology-powered data and advisory services, reinforcing Marex's position as an essential partner. The executive's mandate includes fostering innovation and driving growth initiatives throughout the Americas.
    Ram Vittal

    Arthur Fan - Chief Executive Officer (APAC)

    Arthur Fan, the Chief Executive Officer (APAC) at Marex Group, leads the strategic development and operational management for the Asia-Pacific region. Fan directs the delivery of Marex's comprehensive financial services, including critical liquidity provision, market access, and infrastructure support to clients across diverse markets. This executive's responsibilities encompass expanding Marex's footprint within the APAC territory, ensuring technology-powered data and advisory services meet regional demands. Arthur Fan's leadership is pivotal in strengthening Marex's role as an indispensable partner for clients navigating the complexities of energy, commodities, and financial markets throughout Asia and Oceania.
    Arthur Fan

    Robert Khoury - Chief Operating Officer - ANZ

    Robert Khoury, the Chief Operating Officer - ANZ at Marex Group, directs operational execution and efficiency within the Australia and New Zealand region. Khoury oversees the integration of Marex's technology-powered data and advisory services, ensuring seamless market access for regional clients. This leadership involves optimizing internal processes to support the company's core mission of providing essential liquidity and infrastructure. The operational scope includes managing regional teams and ensuring compliance with local market regulations. Robert Khoury's focus remains on enhancing the client experience through robust operational frameworks, directly contributing to Marex's strategic growth in the APAC territory.

    Bill Kunmann - President

    Bill Kunmann, the President at Marex Group, drives strategic initiatives and oversees key business functions across the organization. Kunmann's role involves fostering growth and enhancing Marex's position as a diversified global financial services platform. This leadership focuses on expanding market reach and deepening client relationships within the energy, commodities, and financial sectors. Bill Kunmann champions the integration of technology-powered data and advisory services, ensuring Marex remains an essential partner for clients seeking liquidity and market access. The President's strategic vision guides the company's commitment to delivering robust infrastructure and exceptional service.
    Bill Kunmann

    Eric Leese - Group President, The Leese Trading

    Eric Leese, the Group President, The Leese Trading at Marex Group, directs the strategic operations and market engagement for The Leese Trading division. Leese focuses on enhancing Marex's specialized offerings within the commodities and energy markets, providing essential liquidity and market access. This leadership role involves driving innovation in trading strategies and leveraging technology-powered data and advisory services to benefit clients. Eric Leese's expertise is crucial in maintaining Marex's competitive edge and expanding its influence within key trading sectors. The Group President's commitment ensures The Leese Trading division effectively supports Marex's broader mission as a vital financial services partner.

    John McKoane - Chief Operations Officer

    John McKoane, the Chief Operations Officer at Marex Group, orchestrates the company's global operational framework and infrastructure. McKoane ensures the efficient delivery of essential services, including liquidity provision, market access, and technology-powered data and advisory solutions across all markets Marex serves. This leadership position involves optimizing operational workflows to enhance client experience and support strategic growth initiatives. John McKoane's oversight extends to managing the technological backbone that underpins Marex's diverse financial services platform, ensuring reliability and scalability. The Chief Operations Officer's efforts are critical to maintaining Marex's reputation as a leading financial services partner.

    Sarah Masterson - Chief Administrative Officer (Americas)

    Sarah Masterson, the Chief Administrative Officer (Americas) at Marex Group, manages critical administrative functions and operational support for the Americas region. Masterson ensures the smooth execution of internal processes that underpin Marex's financial services platform, facilitating essential liquidity and market access for clients. This role involves overseeing human resources, legal, and compliance frameworks, ensuring alignment with corporate objectives and regional regulations. Sarah Masterson's leadership contributes to a stable and efficient operating environment, enabling the delivery of technology-powered data and advisory services. The Chief Administrative Officer's efforts are vital to supporting the company's growth and client service commitments in the Americas.

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    Frequently Asked Questions Regarding Marex Group Top Executives and Leadership Team

    Who leads Marex Group?
    Marex Group is led by Ram Vittal (Chief Executive Officer (Americas)), along with executives such as Arthur Fan (Chief Executive Officer (APAC)) and Robert Khoury (Chief Operating Officer - ANZ).
    Who is part of Marex Group’s executive team?
    The executive team of Marex Group includes leaders such as Ram Vittal (Chief Executive Officer (Americas)), Arthur Fan (Chief Executive Officer (APAC)), Robert Khoury (Chief Operating Officer - ANZ) and other senior executives.
    How many executives does Marex Group have?
    Marex Group has 7 executives leading key business areas.
    What roles are included in Marex Group’s leadership team?
    The leadership team of Marex Group includes roles such as Chief Executive Officer (Americas), Chief Executive Officer (APAC), Chief Operating Officer - ANZ, President, Group President, The Leese Trading.