StoneX Executive and Leadership Team

Greg Kallinikos, the Chief Executive Officer (Asia Pacific) at StoneX, directs the firm's strategic growth and market penetration across the Asia Pacific region. Kallinikos oversees the expansion of financial services, ensuring that local traders and organizations gain access to the global markets ecosystem. By leveraging boots-on-the-ground intelligence, the Chief Executive Officer (Asia Pacific) tailors the firm's digital platforms to meet specific regional requirements. This leadership role involves building relationships with institutional clients and navigating diverse regulatory environments. Greg Kallinikos drives revenue growth by promoting the firm's end-to-end clearing and execution services throughout the region. Through the management of regional operations, the Chief Executive Officer (Asia Pacific) ensures that the company maintains its reputation for deep expertise and high-touch service. Kallinikos secures the firm's market position by aligning regional initiatives with the broader corporate mission of providing comprehensive trade lifecycle support.

William Dunaway, the Chief Financial Officer at StoneX, manages the financial health and capital allocation strategies for the entire organization. Dunaway oversees fiscal planning, reporting, and treasury functions to ensure the firm maintains the liquidity required for global market operations. By analyzing market trends and internal performance metrics, the Chief Financial Officer supports the strategic expansion of clearing and execution services. This leadership role involves coordinating with the Board to maintain transparency and regulatory compliance across all financial activities. William Dunaway drives long-term value by optimizing the balance sheet and managing risk exposure in volatile market conditions. Through rigorous financial oversight, the Chief Financial Officer ensures that the firm possesses the resources to deliver high-touch service and deep expertise to clients. Dunaway secures the financial stability necessary for the company to continue providing comprehensive trade lifecycle support.

Nicholas DeJarnette, the Deputy Chief Operating Officer, Securities at StoneX, manages the operational workflows within the securities division to ensure seamless trade execution. DeJarnette oversees the daily clearing and settlement processes that connect institutional clients to global markets. By refining operational efficiency, the Deputy Chief Operating Officer, Securities supports the delivery of high-touch service and deep market expertise. This leadership role involves coordinating with internal teams to mitigate risks during the post-trade lifecycle. Nicholas DeJarnette drives operational excellence by implementing standardized procedures that enhance the speed and accuracy of securities transactions. Through the management of complex clearing operations, the Deputy Chief Operating Officer, Securities ensures that the firm meets the rigorous demands of institutional investors. DeJarnette maintains a focus on scalability, allowing the securities division to adapt to evolving market conditions while providing consistent, reliable access to global financial ecosystems.

Raghuraman Uthaman, the Chief Operating Officer (APAC) at StoneX, manages the day-to-day operational infrastructure required to support the firm's activities in the Asia Pacific region. Uthaman oversees the execution of clearing and settlement services, ensuring that regional operations align with global standards. By optimizing internal processes, the Chief Operating Officer (APAC) facilitates the delivery of high-touch service to institutional clients. This leadership role involves coordinating with regional teams to ensure that digital platforms function effectively within local market frameworks. Raghuraman Uthaman drives operational efficiency by streamlining post-trade workflows and enhancing service delivery speed. Through the management of regional resources, the Chief Operating Officer (APAC) supports the firm's commitment to providing deep expertise and reliable market access. Uthaman ensures that all operational activities in the region contribute to the company's overall goal of supporting the entire lifecycle of a trade.

Keith Coyne, the Chief Operating Officer, Stonex Digital at StoneX, directs the operational strategy for the firm's digital asset and technology-focused initiatives. Coyne oversees the development and deployment of digital platforms that connect clients to modern market ecosystems. By managing the intersection of traditional financial services and digital innovation, the Chief Operating Officer, Stonex Digital ensures that the firm remains at the forefront of market evolution. This leadership role involves coordinating with technology teams to enhance the user experience and security of digital trading tools. Keith Coyne drives growth by scaling digital operations to meet the increasing demand for efficient, technology-driven financial solutions. Through the oversight of digital service delivery, the Chief Operating Officer, Stonex Digital supports the firm's mission of providing deep expertise and high-touch service. Coyne ensures that digital operations remain integrated with the company's broader clearing and execution capabilities.

Ariel Coelho, the President, Soft Commodities (Brazil) at StoneX, directs the firm's specialized operations within the Brazilian agricultural and soft commodities markets. Coelho oversees the delivery of high-touch service and boots-on-the-ground intelligence to local producers and institutional traders. By connecting these participants to global markets, the President, Soft Commodities (Brazil) facilitates efficient trade execution and risk management. This leadership role involves managing the complexities of commodity clearing and settlement within the regional market context. Ariel Coelho drives market growth by leveraging deep expertise in soft commodities to provide tailored financial solutions. Through the oversight of regional operations, the President, Soft Commodities (Brazil) ensures that the firm's digital platforms and clearing services meet the specific needs of the Brazilian market. Coelho maintains alignment with the company's global mission by providing comprehensive support throughout the entire lifecycle of a commodity trade.

Charles Lyon, the Group President at StoneX, manages the overarching strategic direction and operational performance of the firm's diverse business units. Lyon oversees the integration of financial services, ensuring that clearing, execution, and consulting functions operate as a cohesive network. By coordinating across divisions, the Group President supports the delivery of institutional-grade access to global markets. This leadership role involves driving corporate strategy and fostering a culture of deep expertise and high-touch service. Charles Lyon drives business outcomes by identifying growth opportunities and optimizing the firm's service offerings for a global client base. Through the management of key business segments, the Group President ensures that the company maintains its competitive edge in the financial services industry. Lyon secures the firm's long-term success by aligning operational activities with the company's mission to connect clients to the global markets ecosystem.

Oscar Schaps, the FCM Division President Latin America at StoneX, directs the firm's Futures Commission Merchant (FCM) operations across the Latin American region. Schaps oversees the provision of clearing and execution services, ensuring that institutional clients receive high-touch support in complex market environments. By leveraging deep expertise in regional commodity and financial markets, the FCM Division President Latin America facilitates seamless trade lifecycle management. This leadership role involves building strategic partnerships and expanding the firm's footprint in key Latin American markets. Oscar Schaps drives operational success by implementing robust clearing protocols that meet international standards. Through the management of the FCM division, the FCM Division President Latin America ensures that the firm provides reliable access to global markets for regional participants. Schaps maintains a focus on delivering value through specialized consulting and intelligence, supporting the company's broader mission of connecting clients to the global financial ecosystem.

Abbey Perkins, the Chief Information Officer at StoneX, directs the technological infrastructure supporting the firm's global financial services network. Perkins architects scalable digital platforms that connect traders and investors to complex market ecosystems. By overseeing the integration of end-to-end clearing and execution systems, the Chief Information Officer ensures high-performance reliability across all trading environments. This leadership role involves managing cybersecurity protocols and data integrity to maintain institutional-grade standards. Abbey Perkins drives innovation by implementing advanced software solutions that streamline post-trade clearing, custody, and settlement processes. Through the modernization of internal digital architecture, the Chief Information Officer enables the firm to provide superior market access. Perkins maintains alignment with corporate growth objectives by optimizing technical resources to support high-touch service models, ultimately securing the firm's competitive position within the global financial landscape.

Diego Rotsztain, the Chief Governance & Legal Officer at StoneX, manages the firm's legal framework, regulatory compliance, and corporate governance standards. Rotsztain oversees the legal aspects of global market operations, ensuring that all clearing and execution services adhere to international and local regulations. By providing strategic counsel, the Chief Governance & Legal Officer mitigates risk and protects the firm's institutional reputation. This leadership role involves navigating complex legal landscapes to support the company's expansion into new markets. Diego Rotsztain drives integrity by implementing robust governance policies that guide the firm's interactions with traders and investors. Through the management of legal affairs, the Chief Governance & Legal Officer ensures that the company maintains its commitment to transparency and ethical service. Rotsztain secures the firm's operational continuity by proactively addressing regulatory challenges and ensuring that all business practices align with the company's core mission.