ILLUMINA Executive and Leadership Team

May, 2026

Leadership Overview

ILLUMINA has 7 executives leading key functions including information technology, medical affairs, and marketing.

Driven by innovation, ILLUMINA provides advanced genetic and genomic analysis solutions, impacting research, diagnostics, and personalized medicine globally.

Leadership Roles at ILLUMINA

  • Chief Information Officer - Mark Field
  • Chief of Staff To the Chief Information Officer - Erin Kroll
  • Senior Executive Administrative Partner To Chief Marketing Officer - Jacqueline Tran
  • Chief Medical Officer - Eric Green
  • Senior Administrative Partner - Lisa Saindon
  • Senior Administrative Partner - Margaret Yam
  • Senior Administrative Partner - Melissa Mosley
  • Mark Field - Chief Information Officer

    Mark Field, the Chief Information Officer at ILLUMINA, directs the company's global information technology strategy and operations. Overseeing all aspects of the IT infrastructure, Field ensures the secure and efficient management of data critical to ILLUMINA's sequencing and array-based solutions. This leadership role involves architecting scalable systems that support the company's expanding portfolio, including whole-genome sequencing kits and multi-cancer early detection tests. By driving digital transformation initiatives, Mark Field enhances operational efficiency and supports the research and diagnostic capabilities ILLUMINA provides to academic institutions, pharmaceutical companies, and clinical laboratories worldwide. The Chief Information Officer's focus extends to cybersecurity, data analytics, and the integration of new technologies to maintain ILLUMINA's competitive edge in genomic analysis.
    Mark Field

    Erin Kroll - Chief of Staff To the Chief Information Officer

    Erin Kroll, the Chief of Staff To the Chief Information Officer at ILLUMINA, provides critical operational and strategic support to the Chief Information Officer. Kroll manages key initiatives and projects within the IT department, ensuring alignment with ILLUMINA's broader business objectives. This role involves facilitating communication across various technology teams and external partners, optimizing workflows, and driving the execution of strategic IT plans. By streamlining processes and enhancing project management, Erin Kroll directly contributes to the effective delivery of ILLUMINA's sequencing and array-based solutions. The Chief of Staff To the Chief Information Officer also plays a vital part in resource allocation and performance tracking for the information technology division, supporting the company's mission in genomic analysis.

    Jacqueline Tran - Senior Executive Administrative Partner To Chief Marketing Officer

    Jacqueline Tran, the Senior Executive Administrative Partner To Chief Marketing Officer at ILLUMINA, provides comprehensive executive support to the Chief Marketing Officer. Tran manages complex scheduling, coordinates high-level meetings, and facilitates communication across marketing teams and other departments. This role is essential for ensuring the smooth operation of marketing initiatives that promote ILLUMINA's genetic and genomic analysis solutions. By optimizing administrative processes, Jacqueline Tran enables the Chief Marketing Officer to focus on strategic market development and brand positioning. The Senior Executive Administrative Partner To Chief Marketing Officer also assists in preparing materials for executive reviews and supports the execution of marketing campaigns that reach genomic research centers, academic institutions, and biotechnology companies.

    Eric Green - Chief Medical Officer

    Eric Green, the Chief Medical Officer at ILLUMINA, leads the company's medical affairs strategy and clinical development initiatives. Green oversees the clinical validation and application of ILLUMINA's sequencing and array-based technologies, particularly in areas like cancer diagnostics and early disease detection. This critical role involves guiding the development of whole-genome sequencing kits and the Galleri multi-cancer early detection test, ensuring their scientific rigor and clinical utility. By collaborating with healthcare providers and research institutions, Eric Green drives the adoption of ILLUMINA's solutions in clinical settings. The Chief Medical Officer's expertise is instrumental in translating complex genomic data into actionable medical insights, advancing patient care and supporting the company's mission to improve human health through genomic analysis.

    Lisa Saindon - Senior Administrative Partner

    Lisa Saindon, the Senior Administrative Partner at ILLUMINA, delivers essential administrative and operational support to key executives. Saindon manages intricate calendars, coordinates critical meetings, and facilitates seamless communication flows within the organization. This position is vital for maintaining executive efficiency and ensuring the timely execution of strategic priorities related to ILLUMINA's genetic and genomic analysis solutions. By streamlining administrative tasks, Lisa Saindon empowers leadership to concentrate on driving innovation in sequencing technologies and diagnostic tools. The Senior Administrative Partner also assists in preparing documentation for board reviews and supports cross-functional project coordination, contributing to the overall success of ILLUMINA's market presence.

    Margaret Yam - Senior Administrative Partner

    Margaret Yam, the Senior Administrative Partner at ILLUMINA, provides comprehensive executive administrative support, ensuring the smooth functioning of daily operations for assigned leadership. Yam expertly manages complex scheduling, organizes critical meetings, and oversees the preparation of essential documents and presentations. This role is fundamental to maintaining executive productivity and facilitating the strategic advancement of ILLUMINA's cutting-edge sequencing and array-based genomic analysis solutions. By efficiently handling administrative duties, Margaret Yam enables executives to dedicate their focus to driving innovation and expanding market reach for products like whole-genome sequencing kits and early cancer detection tests. The Senior Administrative Partner plays a key part in supporting cross-departmental collaboration and project execution.

    Melissa Mosley - Senior Administrative Partner

    Melissa Mosley, the Senior Administrative Partner at ILLUMINA, offers robust administrative and organizational support to senior leadership. Mosley expertly manages executive calendars, coordinates important meetings, and ensures efficient information flow across various teams. This position is crucial for enhancing the operational effectiveness of executives driving ILLUMINA's advancements in genetic and genomic analysis. By expertly handling logistical and administrative responsibilities, Melissa Mosley allows leadership to concentrate on strategic initiatives, such as developing new sequencing technologies and expanding the reach of diagnostic solutions. The Senior Administrative Partner contributes significantly to the seamless execution of company-wide projects and the overall operational integrity of ILLUMINA.

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    Frequently Asked Questions Regarding ILLUMINA Top Executives and Leadership Team

    Who leads ILLUMINA?
    ILLUMINA is led by Mark Field (Chief Information Officer), along with executives such as Erin Kroll (Chief of Staff To the Chief Information Officer) and Jacqueline Tran (Senior Executive Administrative Partner To Chief Marketing Officer).
    Who is part of ILLUMINA’s executive team?
    The executive team of ILLUMINA includes leaders such as Mark Field (Chief Information Officer), Erin Kroll (Chief of Staff To the Chief Information Officer), Jacqueline Tran (Senior Executive Administrative Partner To Chief Marketing Officer) and other senior executives.
    How many executives does ILLUMINA have?
    ILLUMINA has 7 executives leading key business areas.
    What roles are included in ILLUMINA’s leadership team?
    The leadership team of ILLUMINA includes roles such as Chief Information Officer, Chief of Staff To the Chief Information Officer, Senior Executive Administrative Partner To Chief Marketing Officer, Chief Medical Officer, Senior Administrative Partner.