Alexion Executive and Leadership Team

October, 2026

Leadership Overview

Alexion has 4 executives leading key functions including revenue generation, operational strategy, medical office planning, and corporate leadership.

Focused on delivering life-saving therapies for rare disorders, Alexion advances global biopharmaceutical innovation through rigorous research, development, and the commercialization of specialized medicines for patients facing severe health challenges.

Leadership Roles at Alexion

  • President - Patrice Coissac
  • Chief Revenue Officer & Manager - Yi Su
  • Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development - Mackenzie Halter
  • Director, Business Planning & Operations Medical Office Chief & Chief Marketing Officer - Moh-Lim Ong
  • Patrice Coissac - President

    Patrice Coissac, the President at Alexion, provides executive oversight for the entire biopharmaceutical portfolio and corporate mission. Overseeing the execution of long-term growth strategies, the President ensures that the organization maintains a competitive edge in the development of medicines for severe and life-threatening rare disorders. This leadership role involves guiding the C-suite in balancing immediate operational demands with future research investments. By fostering a culture of scientific excellence and patient-centricity, Patrice Coissac directly influences the overall market impact of the company. The President manages high-level relationships with stakeholders and regulatory bodies to facilitate the global delivery of innovative therapies. Through consistent evaluation of corporate performance and strategic direction, Coissac drives the company toward sustainable success. The President maintains a focus on operational efficiency and organizational health, ensuring that every department contributes effectively to the mission of transforming lives through advanced medical science and dedicated biopharmaceutical research.

    Yi Su - Chief Revenue Officer & Manager

    Yi Su, the Chief Revenue Officer & Manager at Alexion, directs all global commercial activities and revenue growth initiatives. Overseeing the expansion of market access for rare disease therapies, the Chief Revenue Officer & Manager ensures alignment between sales performance and patient needs across international markets. This leadership role involves optimizing pricing strategies and managing complex distribution networks to maximize the reach of life-threatening disorder treatments. By analyzing market trends and competitive landscapes, Yi Su directly impacts the financial trajectory of the organization. The Chief Revenue Officer & Manager maintains close collaboration with regional sales teams to drive consistent performance in North American and EMEA territories. Through rigorous oversight of commercial operations, Su secures the necessary resources to sustain long-term investment in biopharmaceutical innovation while maintaining high standards of operational excellence and fiscal responsibility within the broader corporate framework.

    Mackenzie Halter - Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development

    Mackenzie Halter, the Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development at Alexion, architects the strategic framework for regulatory compliance and safety protocols. Overseeing the integration of development pipelines with safety standards, the Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development ensures that all clinical advancements meet stringent global health requirements. This leadership role involves coordinating cross-functional teams to streamline the path from discovery to commercialization for rare disorder medicines. By managing the operational cadence of the development office, Mackenzie Halter directly influences the efficiency of the research lifecycle. The Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development facilitates communication between technical departments and executive leadership to maintain focus on critical milestones. Halter drives organizational agility by refining internal processes and ensuring that safety remains the primary pillar of every therapeutic advancement.

    Moh-Lim Ong - Director, Business Planning & Operations Medical Office Chief & Chief Marketing Officer

    Moh-Lim Ong, the Director, Business Planning & Operations Medical Office Chief & Chief Marketing Officer at Alexion, manages the strategic alignment of medical affairs and marketing initiatives. Overseeing the translation of clinical data into impactful market messaging, the Director, Business Planning & Operations Medical Office Chief & Chief Marketing Officer ensures that healthcare providers understand the value of specialized rare disease treatments. This leadership role involves orchestrating business planning cycles to support the medical office in achieving long-term therapeutic goals. By bridging the gap between scientific research and commercial outreach, Moh-Lim Ong directly shapes the brand presence of the company. The Director, Business Planning & Operations Medical Office Chief & Chief Marketing Officer monitors global market dynamics to adjust promotional strategies and medical education programs accordingly. Ong drives engagement with key opinion leaders and medical communities, ensuring that the company remains at the forefront of biopharmaceutical innovation through clear, evidence-based communication and robust operational planning.

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    Frequently Asked Questions Regarding Alexion Top Executives and Leadership Team

    Who leads Alexion?
    Alexion is led by Patrice Coissac (President), along with executives such as Yi Su (Chief Revenue Officer & Manager) and Mackenzie Halter (Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development).
    Who is part of Alexion’s executive team?
    The executive team of Alexion includes leaders such as Patrice Coissac (President), Yi Su (Chief Revenue Officer & Manager), Mackenzie Halter (Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development) and other senior executives.
    How many executives does Alexion have?
    Alexion has 4 executives leading key business areas.
    What roles are included in Alexion’s leadership team?
    The leadership team of Alexion includes roles such as President, Chief Revenue Officer & Manager, Operations Senior Director, Strategy & Chief of Staff To, Regulatory & Safety Head of Development, Director, Business Planning & Operations Medical Office Chief & Chief Marketing Officer.