Eisai Global Executive and Leadership Team

July, 2026

Leadership Overview

Eisai Global has 10 executives leading key functions including strategy, finance, and regional operations.

Driven by a human health care approach, Eisai Global develops and produces medicines, extending beyond traditional pharmaceutical services to foster patient-centered healthcare solutions across global markets.

Leadership Roles at Eisai Global

  • Chairman & Chief Executive Officer & Eisai Inc Region President (Americas) - Tatsuyuki Yasuno
  • Director, Representative Corporate Officer and Chief Executive Officer - Haruo Naito
  • Vice President & Chief Financial Officer - Brian Harraka
  • President (Japan) & Promotion Department Manager, Product Strategy - Hiroyuki Murayama
  • President, Epochal Precision Anti-Cancer Therapeutics - Toshimitsu Uenaka
  • President & General Manager (Eci) - Yanhui Feng
  • President, Eisai Machinery (USA) - Michael Montaigne
  • Vice President and President, Eisai Demand Chain Systems - Kazuhiko Tamura
  • President, Partnership Management Core Functional Unit - Shawn Gallagher
  • Vice President & Chief Information Officer - Makoto Hoketsu
  • Tatsuyuki Yasuno - Chairman & Chief Executive Officer & Eisai Inc Region President (Americas)

    Tatsuyuki Yasuno, the Chairman & Chief Executive Officer & Eisai Inc Region President (Americas) at Eisai Global, directs the overarching strategy and operational execution across the Americas region. This leadership role involves guiding the company's pharmaceutical development and manufacturing initiatives, ensuring alignment with the human health care approach. Yasuno oversees the integration of business-to-business and business-to-consumer operations within North America, driving market presence and patient-centered solutions. The Chairman & Chief Executive Officer & Eisai Inc Region President (Americas) ensures robust research and development efforts translate into tangible healthcare advancements. By focusing on critical therapeutic areas, Tatsuyuki Yasuno strengthens Eisai's commitment to improving patient outcomes and expanding access to vital medicines throughout the Americas.
    Tatsuyuki Yasuno

    Haruo Naito - Director, Representative Corporate Officer and Chief Executive Officer

    Haruo Naito, the Director, Representative Corporate Officer and Chief Executive Officer at Eisai Global, spearheads the company's global strategic direction and corporate governance. This executive position involves shaping the long-term vision for pharmaceutical innovation and patient care, reinforcing Eisai's commitment to its human health care philosophy. Naito directs the integration of research and development activities across all operational regions, ensuring a unified approach to addressing unmet medical needs. The Director, Representative Corporate Officer and Chief Executive Officer fosters cross-functional collaboration to enhance the development and production of medicines. By championing patient-centered healthcare solutions, Haruo Naito drives Eisai's mission to make a significant impact on global health and well-being.
    Haruo Naito

    Brian Harraka - Vice President & Chief Financial Officer

    Brian Harraka, the Vice President & Chief Financial Officer at Eisai Global, manages the company's financial health and strategic fiscal planning. This executive function involves overseeing all financial operations, including budgeting, forecasting, and investment strategies, to support Eisai's global expansion and research initiatives. Harraka ensures robust financial controls are in place, safeguarding assets and optimizing resource allocation across business-to-business and business-to-consumer segments. The Vice President & Chief Financial Officer plays a pivotal role in evaluating new market opportunities and managing financial risks associated with pharmaceutical development. By providing critical financial insights, Brian Harraka enables Eisai Global to sustain its commitment to patient-centered healthcare solutions and long-term growth.

    Hiroyuki Murayama - President (Japan) & Promotion Department Manager, Product Strategy

    Hiroyuki Murayama, the President (Japan) & Promotion Department Manager, Product Strategy at Eisai Global, leads the strategic development and market introduction of pharmaceutical products within the crucial Japanese market. This dual role involves overseeing both the operational leadership in Japan and the strategic planning for product promotion and market penetration. Murayama directs initiatives to align product strategies with patient needs, ensuring that Eisai's medicines effectively reach those requiring them. The President (Japan) & Promotion Department Manager, Product Strategy collaborates closely with research and development teams to translate scientific advancements into viable commercial offerings. By focusing on effective product promotion and strategic market positioning, Hiroyuki Murayama strengthens Eisai's presence and impact in Japan.
    Hiroyuki Murayama

    Toshimitsu Uenaka - President, Epochal Precision Anti-Cancer Therapeutics

    Toshimitsu Uenaka, the President, Epochal Precision Anti-Cancer Therapeutics at Eisai Global, drives the strategic direction and execution of innovative oncology treatments. This specialized leadership role focuses on advancing precision medicine within the field of cancer therapy, aligning research and development efforts with patient outcomes. Uenaka oversees the integration of cutting-edge technologies and scientific discoveries to create novel anti-cancer therapeutics. The President, Epochal Precision Anti-Cancer Therapeutics ensures that Eisai's pipeline in oncology reflects a deep commitment to addressing the complex needs of cancer patients. By championing advancements in this critical therapeutic area, Toshimitsu Uenaka reinforces Eisai's dedication to improving lives through groundbreaking pharmaceutical solutions.
    Toshimitsu Uenaka

    Yanhui Feng - President & General Manager (Eci)

    Yanhui Feng, the President & General Manager (Eci) at Eisai Global, directs the strategic operations and business development for the Eci division. This leadership position involves overseeing the comprehensive management of Eisai's activities within this specific entity, ensuring alignment with the company's broader mission and human health care philosophy. Feng drives initiatives to enhance product development, manufacturing efficiency, and market reach for the Eci segment. The President & General Manager (Eci) fosters collaboration across departments to achieve operational excellence and expand Eisai's impact. By focusing on strategic growth and operational effectiveness, Yanhui Feng contributes significantly to Eisai Global's overall success and its commitment to patient-centered healthcare solutions.

    Michael Montaigne - President, Eisai Machinery (USA)

    Michael Montaigne, the President, Eisai Machinery (USA) at Eisai Global, leads the strategic direction and operational management of the machinery division within the United States. This executive role involves overseeing the development, production, and distribution of specialized machinery crucial for pharmaceutical manufacturing and related industries. Montaigne ensures that Eisai Machinery (USA) adheres to the highest standards of quality and innovation, supporting the broader company's commitment to advancing healthcare solutions. The President, Eisai Machinery (USA) drives operational efficiency and technological advancement within the division. By focusing on robust machinery solutions, Michael Montaigne contributes to the seamless execution of Eisai's pharmaceutical development and production processes in the US market.

    Kazuhiko Tamura - Vice President and President, Eisai Demand Chain Systems

    Kazuhiko Tamura, the Vice President and President, Eisai Demand Chain Systems at Eisai Global, oversees the strategic management and optimization of the company's supply chain and distribution networks. This critical function ensures the efficient and reliable delivery of Eisai's pharmaceutical products to markets worldwide, supporting the human health care approach. Tamura drives initiatives to enhance logistical efficiency, inventory management, and overall supply chain resilience across global operations. The Vice President and President, Eisai Demand Chain Systems collaborates with various departments to ensure seamless product flow from manufacturing to patient access. By strengthening the demand chain systems, Kazuhiko Tamura plays a vital role in Eisai's commitment to providing timely and accessible healthcare solutions.
    Kazuhiko Tamura

    Shawn Gallagher - President, Partnership Management Core Functional Unit

    Shawn Gallagher, the President, Partnership Management Core Functional Unit at Eisai Global, directs the strategic development and execution of key collaborations and alliances. This leadership role focuses on identifying, nurturing, and managing partnerships that advance Eisai's research, development, and commercialization objectives. Gallagher oversees the cultivation of relationships with external organizations, ensuring mutual benefit and alignment with the company's human health care philosophy. The President, Partnership Management Core Functional Unit plays a crucial part in expanding Eisai's reach and impact through strategic external engagement. By fostering strong partnerships, Shawn Gallagher contributes to Eisai Global's mission of delivering innovative patient-centered healthcare solutions.

    Makoto Hoketsu - Vice President & Chief Information Officer

    Makoto Hoketsu, the Vice President & Chief Information Officer at Eisai Global, architects the company's technological infrastructure and digital strategy. This critical role ensures that information systems effectively support Eisai's global pharmaceutical operations and research endeavors. Hoketsu oversees the implementation of advanced IT solutions that enhance data management, streamline development processes, and bolster cybersecurity measures across all regions. The Vice President & Chief Information Officer drives innovation in digital health platforms, aligning technology with the company's human health care approach. By optimizing data utilization and ensuring system reliability, Makoto Hoketsu empowers Eisai's teams to accelerate the discovery and delivery of patient-centered medicines worldwide.
    Makoto Hoketsu

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    Frequently Asked Questions Regarding Eisai Global Top Executives and Leadership Team

    Who leads Eisai Global?
    Eisai Global is led by Tatsuyuki Yasuno (Chairman & Chief Executive Officer & Eisai Inc Region President (Americas)), along with executives such as Haruo Naito (Director, Representative Corporate Officer and Chief Executive Officer) and Brian Harraka (Vice President & Chief Financial Officer).
    Who is part of Eisai Global’s executive team?
    The executive team of Eisai Global includes leaders such as Tatsuyuki Yasuno (Chairman & Chief Executive Officer & Eisai Inc Region President (Americas)), Haruo Naito (Director, Representative Corporate Officer and Chief Executive Officer), Brian Harraka (Vice President & Chief Financial Officer) and other senior executives.
    How many executives does Eisai Global have?
    Eisai Global has 10 executives leading key business areas.
    What roles are included in Eisai Global’s leadership team?
    The leadership team of Eisai Global includes roles such as Chairman & Chief Executive Officer & Eisai Inc Region President (Americas), Director, Representative Corporate Officer and Chief Executive Officer, Vice President & Chief Financial Officer, President (Japan) & Promotion Department Manager, Product Strategy, President, Epochal Precision Anti-Cancer Therapeutics.