Citadel Executive and Leadership Team

July, 2026

Leadership Overview

Citadel has 10 executives leading key functions including strategy, marketing, finance, and operations.

Driven by market leadership, Citadel is dedicated to providing essential liquidity to global financial markets, fostering innovation, and upholding rigorous standards of integrity and execution.

Leadership Roles at Citadel

  • Founder, Chief Executive Officer & Co-Chief Investment Officer - Kenneth Griffin
  • Chief Financial Officer - Dahan Pham
  • Chief Financial Officer & Vice President - Preethi Saint
  • Global Platform Owner & Chief Operating Officer - Rj Agustin
  • Chief Operating Officer, End User Support - Tiffany Ramadar
  • Chief Operating Officer, Data - Kevin Nutter
  • Chief Operating Officer Team - Alexandra Kinney
  • Head Chief Operating Officer, Transaction Management, Global Treasury - Carlee M.
  • Chief Operating Officer, Equities Technology - Douglas Patterson
  • Chief Marketing Officer - Amanda Rubin
  • Kenneth Griffin - Founder, Chief Executive Officer & Co-Chief Investment Officer

    Kenneth Griffin, the Founder, Chief Executive Officer & Co-Chief Investment Officer at Citadel, directs the firm's overall strategic vision and investment philosophy. Griffin architects the company's global market-making operations, ensuring liquidity provision across fixed income, equities, derivatives, and FX. Overseeing critical investment decisions, Griffin drives the firm's pursuit of alpha and risk management excellence. This leadership role involves guiding the firm's expansion into new markets and asset classes, directly impacting Citadel's competitive positioning. By maintaining a sharp focus on operational efficiency and technological advancement, Kenneth Griffin solidifies the firm's reputation as a premier financial institution.
    Kenneth Griffin

    Dahan Pham - Chief Financial Officer

    Dahan Pham, the Chief Financial Officer at Citadel, manages the firm's financial planning, reporting, and capital allocation strategies. Pham oversees all aspects of financial operations, ensuring robust fiscal management and compliance with regulatory requirements. This leadership position involves optimizing the company's financial structure and driving profitability through strategic investment and cost control measures. By providing critical financial insights, Dahan Pham supports executive decision-making and contributes to the long-term financial health of the organization. Pham's oversight extends to managing relationships with financial institutions and investors, securing the resources necessary for Citadel's continued growth and market dominance.

    Preethi Saint - Chief Financial Officer & Vice President

    Preethi Saint, the Chief Financial Officer & Vice President at Citadel, plays a pivotal role in managing the company's financial health and strategic fiscal planning. Saint oversees critical financial functions, including budgeting, forecasting, and financial analysis, ensuring alignment with Citadel's overarching business objectives. This executive position involves optimizing financial performance and identifying opportunities for enhanced revenue generation and cost efficiency across global operations. By providing astute financial guidance, Preethi Saint supports informed decision-making and strengthens the firm's financial resilience. Saint's leadership ensures that financial strategies effectively support Citadel's market-making activities and expansion initiatives.

    Rj Agustin - Global Platform Owner & Chief Operating Officer

    Rj Agustin, the Global Platform Owner & Chief Operating Officer at Citadel, directs the operational infrastructure and technology platforms that support the firm's global market-making activities. Agustin ensures the seamless execution of trading operations and the efficient deployment of technological solutions across all business lines, including fixed income, equities, and derivatives. This critical role involves optimizing operational workflows and enhancing system reliability to meet the demands of diverse market participants. By driving operational excellence, Rj Agustin enables Citadel to maintain its competitive edge and deliver superior liquidity services. Agustin's focus on platform scalability and efficiency directly supports the company's expansive global reach and service delivery.

    Tiffany Ramadar - Chief Operating Officer, End User Support

    Tiffany Ramadar, the Chief Operating Officer, End User Support at Citadel, leads the strategic direction and operational execution for all end-user technology services. Ramadar ensures that internal teams and external clients receive seamless and efficient support, facilitating smooth interactions with Citadel's trading platforms and services. This position involves optimizing helpdesk operations, managing IT support resources, and implementing best practices to enhance user experience. By focusing on the reliability and responsiveness of end-user systems, Tiffany Ramadar directly contributes to operational continuity and client satisfaction. Ramadar's oversight guarantees that support functions align with the firm's commitment to providing exceptional service across its global operations.

    Kevin Nutter - Chief Operating Officer, Data

    Kevin Nutter, the Chief Operating Officer, Data at Citadel, directs the operational framework for the firm's extensive data management and analytics capabilities. Nutter oversees the infrastructure and processes that ensure the integrity, accessibility, and security of critical market data used in trading and analysis. This role involves optimizing data pipelines and implementing advanced data governance strategies to support Citadel's market-making operations in fixed income, equities, and derivatives. By enhancing data operational efficiency, Kevin Nutter empowers the firm's quantitative researchers and traders with timely and accurate insights. Nutter's leadership ensures that data operations are robust, scalable, and aligned with the firm's strategic goals.
    Kevin Nutter

    Alexandra Kinney - Chief Operating Officer Team

    Alexandra Kinney, the Chief Operating Officer Team at Citadel, contributes to the strategic oversight and operational execution across various critical functions within the COO's office. Kinney supports initiatives aimed at enhancing efficiency, streamlining processes, and ensuring the smooth operation of Citadel's global market-making activities. This collaborative role involves coordinating efforts across different departments to achieve operational excellence and support the firm's growth objectives. By focusing on process improvement and operational alignment, Alexandra Kinney helps maintain Citadel's competitive advantage in providing liquidity across diverse financial instruments. Kinney's contributions are vital to the effective functioning of the firm's extensive operational framework.

    Carlee M. - Head Chief Operating Officer, Transaction Management, Global Treasury

    Carlee M., the Head Chief Operating Officer, Transaction Management, Global Treasury at Citadel, leads the operational execution of all treasury and transaction management activities. M. oversees the systems and processes that facilitate efficient and secure financial transactions, ensuring compliance with global regulatory standards. This executive position involves optimizing cash management, liquidity planning, and foreign exchange operations to support Citadel's worldwide market-making endeavors. By driving operational effectiveness in treasury functions, Carlee M. safeguards the firm's financial stability and facilitates its global trading activities. M.'s expertise ensures that transaction management aligns with the company's strategic financial objectives.

    Douglas Patterson - Chief Operating Officer, Equities Technology

    Douglas Patterson, the Chief Operating Officer, Equities Technology at Citadel, directs the operational strategy and execution for the technology supporting the firm's equities trading business. Patterson oversees the development, deployment, and maintenance of critical trading systems, ensuring high performance and reliability for equities market-making. This role involves managing technology infrastructure, optimizing trading platforms, and implementing innovative solutions to enhance operational efficiency. By focusing on technological advancement in equities operations, Douglas Patterson directly supports Citadel's ability to provide deep liquidity and execute trades effectively. Patterson's leadership ensures that technology operations are robust, scalable, and aligned with the firm's competitive goals in the equities market.
    Douglas Patterson

    Amanda Rubin - Chief Marketing Officer

    Amanda Rubin, the Chief Marketing Officer at Citadel, spearheads the company's brand strategy and market communication initiatives. Rubin develops and executes comprehensive marketing plans designed to enhance Citadel's visibility and reputation among key financial participants, including asset managers and institutional investors. This role involves cultivating relationships with market stakeholders and articulating the firm's value proposition. By aligning marketing efforts with the company's business objectives, Amanda Rubin supports the expansion of Citadel's client base and reinforces its position as a leading market maker. Rubin ensures consistent messaging across all communication channels, driving engagement and fostering trust within the financial ecosystem.

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    Frequently Asked Questions Regarding Citadel Top Executives and Leadership Team

    Who leads Citadel?
    Citadel is led by Kenneth Griffin (Founder, Chief Executive Officer & Co-Chief Investment Officer), along with executives such as Dahan Pham (Chief Financial Officer) and Preethi Saint (Chief Financial Officer & Vice President).
    Who is part of Citadel’s executive team?
    The executive team of Citadel includes leaders such as Kenneth Griffin (Founder, Chief Executive Officer & Co-Chief Investment Officer), Dahan Pham (Chief Financial Officer), Preethi Saint (Chief Financial Officer & Vice President) and other senior executives.
    How many executives does Citadel have?
    Citadel has 10 executives leading key business areas.
    What roles are included in Citadel’s leadership team?
    The leadership team of Citadel includes roles such as Founder, Chief Executive Officer & Co-Chief Investment Officer, Chief Financial Officer, Chief Financial Officer & Vice President, Global Platform Owner & Chief Operating Officer, Chief Operating Officer, End User Support.