Loomis Sayles Executive and Leadership Team

July, 2026

Leadership Overview

Loomis Sayles has 8 executives leading key functions including strategy, operations, technology, finance, and human resources.

Driven by a commitment to client success, Loomis Sayles fulfills the investment needs of institutional and mutual fund clients worldwide, shaping global financial markets through disciplined investment management.

Leadership Roles at Loomis Sayles

  • Chairman & Chief Executive Officer - Kevin Charleston
  • Chief Financial Officer & Board Member - Susan Sieker
  • Chief Operating Officer - John Gidman
  • Chief Operating Officer, Institutional Services - Erick Kuchar
  • Chief Operating Officer, Growth Equity Strategies - Julien Raynal
  • Chief Information Officer - James Lombardo
  • Chief Technology Officer - Christian Dietz
  • Chief Human Resources Officer - Debbie Lewis
  • Kevin Charleston - Chairman & Chief Executive Officer

    Kevin Charleston, the Chairman & Chief Executive Officer at Loomis Sayles, directs the firm's overarching strategy and global operations. Charleston guides the company's mission to meet the investment needs of institutional and mutual fund clients worldwide. This leadership role involves setting the strategic direction for all business units, ensuring alignment with market opportunities and client objectives. Charleston's oversight extends to fostering a culture of disciplined investment management, a core tenet of Loomis Sayles since its inception. The Chairman & Chief Executive Officer drives the firm's expansion and market positioning, ensuring sustained growth and financial stability. By championing innovation and operational excellence, Kevin Charleston solidifies the company's reputation as a trusted investment partner across diverse global markets.

    Susan Sieker - Chief Financial Officer & Board Member

    Susan Sieker, the Chief Financial Officer & Board Member at Loomis Sayles, directs the company's financial strategy and fiscal management. Sieker oversees all financial operations, including accounting, financial planning, and capital allocation, ensuring the firm's financial health and stability. As a Board Member, Sieker contributes to strategic decision-making, aligning financial objectives with the company's long-term growth and client service goals. The Chief Financial Officer & Board Member manages investor relations, regulatory compliance, and risk assessment, safeguarding the firm's assets and reputation. Sieker's leadership ensures that Loomis Sayles maintains robust financial controls and pursues sustainable profitability. By providing critical financial oversight, Susan Sieker supports the firm's mission to meet the investment needs of clients globally.
    Susan Sieker

    John Gidman - Chief Operating Officer

    John Gidman, the Chief Operating Officer at Loomis Sayles, manages the firm's extensive operational infrastructure and service delivery. Gidman ensures the seamless execution of investment strategies and client support functions across global operations. This critical role involves optimizing internal processes, enhancing operational efficiency, and maintaining the highest standards of service for institutional and mutual fund clients. The Chief Operating Officer oversees technology integration, risk management frameworks, and business continuity planning, directly supporting the company's mission. Gidman's leadership ensures that Loomis Sayles can effectively scale its services and adapt to evolving market demands. By driving operational excellence, John Gidman reinforces the firm's capacity to deliver consistent investment performance and client satisfaction worldwide.
    John Gidman

    Erick Kuchar - Chief Operating Officer, Institutional Services

    Erick Kuchar, the Chief Operating Officer, Institutional Services at Loomis Sayles, leads the operational framework supporting the firm's institutional client base. Kuchar ensures the efficient and effective delivery of investment solutions and client services tailored to institutional investors worldwide. This position involves managing the complex operational requirements of institutional mandates, including trade execution, settlement, and reporting, to meet stringent client expectations. The Chief Operating Officer, Institutional Services oversees the integration of operational processes with investment teams, ensuring seamless collaboration and adherence to regulatory standards. Kuchar's focus on operational excellence directly supports the firm's commitment to fulfilling the unique investment needs of its institutional clients. By optimizing service delivery, Erick Kuchar strengthens Loomis Sayles's position as a premier provider of institutional investment management.

    Julien Raynal - Chief Operating Officer, Growth Equity Strategies

    Julien Raynal, the Chief Operating Officer, Growth Equity Strategies at Loomis Sayles, manages the operational execution for the firm's specialized growth equity investment activities. Raynal ensures the efficient deployment of capital and robust operational support for growth equity strategies, serving clients seeking dynamic investment opportunities. This leadership role involves overseeing the unique operational demands of managing growth equity portfolios, including due diligence, transaction support, and performance reporting. The Chief Operating Officer, Growth Equity Strategies collaborates closely with investment teams to enhance operational agility and client service within this specific market segment. Raynal's expertise is crucial for scaling these strategies and meeting the evolving needs of growth equity investors. By optimizing operations, Julien Raynal strengthens Loomis Sayles's capacity to deliver targeted investment solutions.

    James Lombardo - Chief Information Officer

    James Lombardo, the Chief Information Officer at Loomis Sayles, architects the firm's technology vision and digital transformation initiatives. Lombardo directs the development and implementation of robust IT systems that support global investment management operations and client services. This leadership position involves ensuring the security, scalability, and reliability of all information technology infrastructure, crucial for meeting the needs of institutional and mutual fund clients. The Chief Information Officer oversees data management, cybersecurity protocols, and the integration of advanced technological solutions to enhance operational efficiency and investment decision-making. Lombardo's strategic guidance ensures that Loomis Sayles remains at the forefront of technological innovation within the finance industry. Through effective technology leadership, James Lombardo empowers the firm to deliver superior investment outcomes and client experiences.
    James Lombardo

    Christian Dietz - Chief Technology Officer

    Christian Dietz, the Chief Technology Officer at Loomis Sayles, spearheads the firm's technological innovation and platform development. Dietz drives the strategic implementation of cutting-edge technologies to enhance investment capabilities and operational effectiveness across global markets. This role focuses on leveraging technology to create competitive advantages, ensuring Loomis Sayles can meet the complex demands of institutional and mutual fund clients. The Chief Technology Officer oversees the research and adoption of new technological solutions, including advanced analytics, AI, and cloud computing, to optimize investment processes. Dietz's expertise is vital in building and maintaining a resilient and forward-thinking technology ecosystem. By advancing the firm's technological infrastructure, Christian Dietz directly contributes to Loomis Sayles's ability to deliver exceptional investment performance and client value.
    Christian Dietz

    Debbie Lewis - Chief Human Resources Officer

    Debbie Lewis, the Chief Human Resources Officer at Loomis Sayles, shapes the company's talent strategy and organizational development. Lewis oversees all human resources functions, including recruitment, employee relations, compensation, and benefits, fostering a high-performance culture. This role is pivotal in attracting, retaining, and developing the skilled professionals essential for Loomis Sayles's investment management expertise. The Chief Human Resources Officer ensures that HR policies and practices align with the company's mission and values, supporting employee engagement and professional growth. Lewis's strategic leadership in human capital management is critical for maintaining the firm's competitive edge in the global financial services market. By cultivating a strong workforce, Debbie Lewis directly contributes to Loomis Sayles's ability to serve its clients effectively.

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    Frequently Asked Questions Regarding Loomis Sayles Top Executives and Leadership Team

    Who leads Loomis Sayles?
    Loomis Sayles is led by Kevin Charleston (Chairman & Chief Executive Officer), along with executives such as Susan Sieker (Chief Financial Officer & Board Member) and John Gidman (Chief Operating Officer).
    Who is part of Loomis Sayles’s executive team?
    The executive team of Loomis Sayles includes leaders such as Kevin Charleston (Chairman & Chief Executive Officer), Susan Sieker (Chief Financial Officer & Board Member), John Gidman (Chief Operating Officer) and other senior executives.
    How many executives does Loomis Sayles have?
    Loomis Sayles has 8 executives leading key business areas.
    What roles are included in Loomis Sayles’s leadership team?
    The leadership team of Loomis Sayles includes roles such as Chairman & Chief Executive Officer, Chief Financial Officer & Board Member, Chief Operating Officer, Chief Operating Officer, Institutional Services, Chief Operating Officer, Growth Equity Strategies.