Shionogi & Co Ltd Executive and Leadership Team

June, 2026

Leadership Overview

Shionogi & Co Ltd has 4 executives leading key functions including strategy, finance, and medical affairs.

Driven by a commitment to patient well-being, Shionogi & Co Ltd focuses on developing groundbreaking treatments for infectious diseases and other critical health challenges, aiming for global impact through scientific innovation and collaboration.

Leadership Roles at Shionogi & Co Ltd

  • Chief Executive Officer - Takeshi Kasuya
  • Representative Director, President & Chief Executive Officer - Isao Teshirogi
  • Senior Vice President & Chief Financial Officer - Masahiro Fujita
  • Chief Medical Officer - Tsutae Nagata
  • Takeshi Kasuya - Chief Executive Officer

    Takeshi Kasuya, the Chief Executive Officer at Shionogi & Co Ltd, directs the overarching corporate strategy and operational execution. Kasuya guides the company's mission to develop innovative treatments that address urgent global health needs, particularly in infectious diseases. This leadership involves fostering a culture of scientific excellence and ensuring the efficient allocation of resources towards groundbreaking research and development initiatives. The Chief Executive Officer's purview extends to shaping the company's long-term vision and market positioning, driving forward the discovery and delivery of novel therapies for conditions such as HIV, influenza, and emerging viral threats. Kasuya's strategic direction ensures Shionogi & Co Ltd maintains its pioneering role in pharmaceutical innovation, leveraging both internal capabilities and external partnerships to accelerate therapeutic advancements and bring life-changing medicines to patients with precision and urgency.

    Isao Teshirogi - Representative Director, President & Chief Executive Officer

    Isao Teshirogi, the Representative Director, President & Chief Executive Officer at Shionogi & Co Ltd, spearheads the company's strategic direction and global operations. Teshirogi champions the core mission of developing innovative treatments to improve patient lives worldwide, with a particular emphasis on addressing pressing global health challenges like infectious diseases. This involves overseeing the discovery and delivery of novel therapies for conditions including antibiotics, HIV, influenza, and emerging viral threats such as COVID-19. The President & Chief Executive Officer drives the integration of in-house research and development with strategic collaborations across industry, government agencies, biotech companies, and academic institutions. Isao Teshirogi's leadership ensures Shionogi & Co Ltd accelerates scientific programs and brings meaningful therapies to patients with the required urgency and precision, solidifying the company's position as a pioneer in pharmaceutical innovation.
    Isao Teshirogi

    Masahiro Fujita - Senior Vice President & Chief Financial Officer

    Masahiro Fujita, the Senior Vice President & Chief Financial Officer at Shionogi & Co Ltd, manages the company's financial health and strategic resource allocation. Fujita oversees all financial planning, accounting, and reporting functions, ensuring fiscal discipline and transparency across the organization. This role is critical in supporting Shionogi & Co Ltd's dedication to developing innovative treatments by securing and managing the necessary capital for research and development. The Chief Financial Officer's responsibilities include optimizing financial strategies to support global operations and expansion, particularly in the pursuit of novel therapies for infectious diseases and other pressing health challenges. Masahiro Fujita's financial acumen guides investment decisions, enabling the company to pursue groundbreaking scientific programs and strategic collaborations with industry partners, government agencies, and academic institutions, thereby accelerating the delivery of life-changing medicines to patients worldwide.

    Tsutae Nagata - Chief Medical Officer

    Tsutae Nagata, the Chief Medical Officer at Shionogi & Co Ltd, directs the company's clinical development and medical affairs strategies. Nagata leads the scientific and clinical teams responsible for advancing novel therapies from discovery through regulatory approval, focusing on critical areas such as infectious diseases, including antibiotics, HIV, influenza, and emerging viral threats. The Chief Medical Officer ensures that Shionogi & Co Ltd's research and development programs align with patient needs and global health priorities, driving the urgent and precise delivery of innovative treatments. This involves overseeing clinical trial design, execution, and data analysis, as well as fostering collaborations with healthcare professionals and regulatory bodies. Tsutae Nagata's medical expertise is fundamental to Shionogi & Co Ltd's mission of improving patient lives worldwide by translating scientific breakthroughs into tangible therapeutic solutions.

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    Frequently Asked Questions Regarding Shionogi & Co Ltd Top Executives and Leadership Team

    Who leads Shionogi & Co Ltd?
    Shionogi & Co Ltd is led by Takeshi Kasuya (Chief Executive Officer), along with executives such as Isao Teshirogi (Representative Director, President & Chief Executive Officer) and Masahiro Fujita (Senior Vice President & Chief Financial Officer).
    Who is part of Shionogi & Co Ltd’s executive team?
    The executive team of Shionogi & Co Ltd includes leaders such as Takeshi Kasuya (Chief Executive Officer), Isao Teshirogi (Representative Director, President & Chief Executive Officer), Masahiro Fujita (Senior Vice President & Chief Financial Officer) and other senior executives.
    How many executives does Shionogi & Co Ltd have?
    Shionogi & Co Ltd has 4 executives leading key business areas.
    What roles are included in Shionogi & Co Ltd’s leadership team?
    The leadership team of Shionogi & Co Ltd includes roles such as Chief Executive Officer, Representative Director, President & Chief Executive Officer, Senior Vice President & Chief Financial Officer, Chief Medical Officer.