Regeneron Executive and Leadership Team

July, 2026

Leadership Overview

Regeneron has 7 executives leading key functions including strategy, science, operations, and human resources.

Driven by scientific discovery, Regeneron is dedicated to developing life-changing medicines for serious diseases, leveraging advanced science and proprietary technologies to address unmet medical needs across oncology, ophthalmology, inflammation, and rare diseases.

Leadership Roles at Regeneron

  • Board co-Chair, President & Chief Executive Officer - Leonard Schleifer
  • Co-Chair, President & Chief Executive Officer - Leonard Schleifer
  • Co-Founder, Board Co-Chair, President & Chief Scientific Officer - George Yancopoulos
  • Executive Assistant To the Chief Human Resources Officer - Wrechelle Nantes
  • Head Operations Strategy, To Chief of Staff & Executive VP, Regulatory, Patient Safety & Quality - Kim Brenner
  • Strategic HR Business Partner & To Chief of Staff & Vice President, Human Resources - Erin Rohr
  • 營售總監 - Vicky Elsa
  • Leonard Schleifer - Board co-Chair, President & Chief Executive Officer

    Leonard Schleifer, the Board co-Chair, President & Chief Executive Officer at Regeneron, directs the company's overarching strategy and operational execution. Schleifer guides Regeneron's mission to discover, develop, and commercialize innovative medicines for serious diseases, focusing on leveraging advanced science and proprietary technologies. This leadership role involves setting the strategic vision for life-changing treatments in areas such as cancer, eye diseases, inflammatory disorders, and rare diseases. By ensuring alignment across research, development, and commercialization efforts, Schleifer drives the company's commitment to addressing significant unmet medical needs. The Chief Executive Officer's responsibilities include fostering a culture of scientific excellence and ensuring the company's long-term growth and market impact. Through strategic decision-making, Leonard Schleifer ensures Regeneron remains at the forefront of biotechnology innovation, translating scientific breakthroughs into tangible patient benefits and solidifying the company's position in the pharmaceutical industry.
    Leonard Schleifer

    Leonard Schleifer - Co-Chair, President & Chief Executive Officer

    Leonard Schleifer, the Co-Chair, President & Chief Executive Officer at Regeneron, spearheads the company's strategic direction and executive leadership. Schleifer's role encompasses guiding Regeneron's commitment to discovering, developing, and commercializing novel medicines for severe conditions, utilizing cutting-edge science and proprietary technologies. This executive leadership ensures focus on creating treatments for cancer, eye diseases, inflammatory disorders, and rare diseases. The Chief Executive Officer's oversight extends to fostering innovation and ensuring the successful translation of scientific advancements into therapies that improve patient lives. By championing the company's core mission, Leonard Schleifer drives Regeneron's pursuit of scientific breakthroughs and its impact on global health, maintaining a strong emphasis on operational excellence and market leadership within the biotechnology sector.
    Leonard Schleifer

    George Yancopoulos - Co-Founder, Board Co-Chair, President & Chief Scientific Officer

    George Yancopoulos, the Co-Founder, Board Co-Chair, President & Chief Scientific Officer at Regeneron, leads the company's groundbreaking scientific research and development efforts. Yancopoulos directs the discovery and advancement of innovative medicines, leveraging Regeneron's proprietary technologies to tackle serious diseases. This pivotal role involves setting the scientific agenda and fostering a culture of relentless innovation to create life-changing treatments for conditions such as cancer, eye diseases, inflammatory disorders, and rare diseases. The Chief Scientific Officer's leadership ensures that Regeneron remains at the cutting edge of biotechnology, translating complex scientific insights into tangible therapeutic solutions. Through strategic scientific direction, George Yancopoulos drives the company's mission to address unmet medical needs and improve patient outcomes globally.

    Wrechelle Nantes - Executive Assistant To the Chief Human Resources Officer

    Wrechelle Nantes, the Executive Assistant To the Chief Human Resources Officer at Regeneron, provides critical administrative and operational support to the Human Resources leadership. Nantes facilitates the smooth functioning of the HR department, ensuring efficient communication and coordination of key initiatives. This role involves managing schedules, organizing meetings, and handling correspondence to support the Chief Human Resources Officer's strategic objectives. By streamlining administrative processes, Nantes enables the HR team to focus on talent management, employee development, and fostering a positive work environment. The Executive Assistant's contribution is vital for the effective implementation of human capital strategies that align with Regeneron's mission of discovering and developing innovative medicines. Nantes's support ensures the HR function operates with maximum efficiency, contributing to the overall success of the company's workforce.

    Kim Brenner - Head Operations Strategy, To Chief of Staff & Executive VP, Regulatory, Patient Safety & Quality

    Kim Brenner, the Head Operations Strategy, To Chief of Staff & Executive VP, Regulatory, Patient Safety & Quality at Regeneron, drives strategic planning and operational enhancements across critical functions. Brenner's responsibilities include developing and implementing strategies that optimize operations, ensuring alignment with regulatory compliance, patient safety protocols, and quality standards. This leadership position involves close collaboration with the Chief of Staff and the Executive VP to refine operational frameworks and enhance efficiency. By focusing on strategic operations, Kim Brenner supports Regeneron's commitment to delivering life-changing medicines while upholding the highest standards of quality and safety. The role is instrumental in translating strategic goals into actionable operational plans, ensuring seamless execution of Regeneron's mission to address serious diseases through scientific innovation.

    Erin Rohr - Strategic HR Business Partner & To Chief of Staff & Vice President, Human Resources

    Erin Rohr, the Strategic HR Business Partner & To Chief of Staff & Vice President, Human Resources at Regeneron, aligns human resources strategies with business objectives. Rohr partners with the Chief of Staff and the Vice President of Human Resources to develop and execute HR initiatives that support Regeneron's growth and innovation in developing life-changing medicines. This role focuses on talent management, organizational development, and employee engagement to foster a high-performing workforce. By providing strategic HR guidance, Erin Rohr ensures that human capital strategies effectively support the company's mission to address serious diseases through scientific discovery. The HR Business Partner's contributions are essential for cultivating a culture that drives scientific excellence and operational efficiency, reinforcing Regeneron's commitment to its employees and its overarching goals.

    Vicky Elsa - 營售總監

    Vicky Elsa, the 營售總監 at Regeneron, oversees sales operations and drives revenue growth for the company's innovative medicines. Elsa's responsibilities include developing and executing sales strategies to expand market reach and ensure Regeneron's life-changing treatments are accessible to patients. This leadership role involves managing sales teams and fostering strong relationships with healthcare providers and stakeholders. By focusing on strategic sales initiatives, Vicky Elsa contributes to Regeneron's mission of addressing serious diseases through scientific discovery and commercialization. The 營售總監's expertise is crucial in translating scientific advancements into commercial success, reinforcing the company's commitment to improving patient lives.

    Explore Leadership Teams in Manufacturing

    Frequently Asked Questions Regarding Regeneron Top Executives and Leadership Team

    Who leads Regeneron?
    Regeneron is led by Leonard Schleifer (Board co-Chair, President & Chief Executive Officer), along with executives such as Leonard Schleifer (Co-Chair, President & Chief Executive Officer) and George Yancopoulos (Co-Founder, Board Co-Chair, President & Chief Scientific Officer).
    Who is part of Regeneron’s executive team?
    The executive team of Regeneron includes leaders such as Leonard Schleifer (Board co-Chair, President & Chief Executive Officer), Leonard Schleifer (Co-Chair, President & Chief Executive Officer), George Yancopoulos (Co-Founder, Board Co-Chair, President & Chief Scientific Officer) and other senior executives.
    How many executives does Regeneron have?
    Regeneron has 7 executives leading key business areas.
    What roles are included in Regeneron’s leadership team?
    The leadership team of Regeneron includes roles such as Board co-Chair, President & Chief Executive Officer, Co-Chair, President & Chief Executive Officer, Co-Founder, Board Co-Chair, President & Chief Scientific Officer, Executive Assistant To the Chief Human Resources Officer, Head Operations Strategy, To Chief of Staff & Executive VP, Regulatory, Patient Safety & Quality.