Viatris Executive and Leadership Team

May, 2026

Leadership Overview

Viatris has 10 executives leading key functions including strategy, compliance, finance, information technology, marketing, and supply chain.

Driven by a commitment to patient health, Viatris empowers people worldwide to live healthier at every stage of life by providing access to medicines, advancing sustainable operations, and developing innovative solutions.

Leadership Roles at Viatris

  • Chief of Staff To the Chief Financial Officer - Zac Walters
  • Interim Chief Financial Officer - Paul Campbell
  • Head Chief Financial Officer, Finance, Greater Region (China) - Lee Shawn
  • Chief of Staff - Kristin DiBartolomeo
  • Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff - Florence Wright
  • Head of IT Global Partner (Corporate Functions) & Chief Information Officer, Office of - Abigail Anderson
  • Vice President, Chief of Staff and Head of the Office of the Chief Information Officer. Global Head of PMO - Aparna Reddy
  • Head Chief Marketing Officer, DC In Process Control & Section - Nilüfer Taşyürek
  • Global Chief Information Officer - Ramkumar Rayapureddy
  • Chief of Staff & Chief Supply Officer (Office of Supply) - Jeff Wallace
  • Zac Walters - Chief of Staff To the Chief Financial Officer

    Zac Walters, the Chief of Staff To the Chief Financial Officer at Viatris, provides critical support to the CFO in managing financial operations and strategic planning. This role involves coordinating financial reporting, analyzing performance metrics, and ensuring alignment with Viatris's broader business objectives. Walters facilitates communication between the finance department and other key organizational functions, driving efficiency and clarity in financial decision-making. The position requires a strong understanding of financial markets and Viatris's commitment to advancing sustainable operations. By optimizing financial processes and supporting strategic investments, Zac Walters contributes directly to the company's financial health and growth. This executive function is essential for maintaining fiscal discipline and supporting Viatris's mission to provide access to medicines globally.

    Paul Campbell - Interim Chief Financial Officer

    Paul Campbell, the Interim Chief Financial Officer at Viatris, directs the company's financial strategy and operations during a transitional period. This leadership role is crucial for maintaining financial stability and supporting Viatris's mission to provide access to medicines worldwide. Campbell oversees all financial planning, reporting, and investment activities, ensuring alignment with the company's commitment to advancing sustainable operations. His responsibilities include managing fiscal resources, optimizing financial performance, and guiding strategic financial decisions. The position requires a comprehensive understanding of the pharmaceutical industry's financial landscape and Viatris's unique market position. Paul Campbell's interim leadership ensures continuity and strategic financial oversight, reinforcing Viatris's dedication to improving patient health through sound financial management and innovative solutions.

    Lee Shawn - Head Chief Financial Officer, Finance, Greater Region (China)

    Lee Shawn, the Head Chief Financial Officer, Finance, Greater Region (China) at Viatris, leads financial operations and strategy for the significant Chinese market. This executive role is instrumental in driving Viatris's financial performance and supporting its mission to provide access to medicines within this key region. Shawn oversees financial planning, analysis, and reporting, ensuring compliance with local regulations and alignment with global financial objectives. The position requires deep insight into regional market dynamics and Viatris's commitment to advancing sustainable operations. By managing financial resources effectively and identifying growth opportunities, Lee Shawn contributes directly to Viatris's expansion and its goal of improving patient health. This leadership function is vital for navigating the complexities of the Chinese market and ensuring robust financial health.

    Kristin DiBartolomeo - Chief of Staff

    Kristin DiBartolomeo, the Chief of Staff at Viatris, directs strategic initiatives and operational execution across key business units. This leadership position involves aligning departmental objectives with the company's overarching mission to improve patient health globally. DiBartolomeo oversees cross-functional projects, ensuring seamless collaboration between departments and driving progress on critical business priorities. The role demands a deep understanding of Viatris's commitment to providing access to medicines and advancing sustainable operations. By managing key internal communications and facilitating executive decision-making, Kristin DiBartolomeo ensures that strategic plans translate into tangible outcomes. This executive function is vital for maintaining operational efficiency and fostering an environment of continuous innovation within the pharmaceutical sector. The scope of this role encompasses supporting the executive leadership team in navigating complex market dynamics and achieving Viatris's ambitious growth targets.

    Florence Wright - Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff

    Florence Wright, the Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff at Viatris, architects and enforces the company's comprehensive compliance framework. This critical role ensures adherence to global regulatory standards, transparency in operations, and rigorous due diligence processes across all business activities. Wright oversees the development and implementation of policies designed to mitigate risk and uphold ethical business practices, directly supporting Viatris's mission to provide access to medicines responsibly. The position requires meticulous attention to detail and a proactive approach to identifying and addressing potential compliance challenges. Florence Wright's leadership ensures that Viatris operates with the highest integrity, safeguarding its reputation and fostering trust with stakeholders worldwide. This executive function is paramount in navigating the complex legal and ethical landscape of the pharmaceutical industry, ensuring sustainable operations and patient well-being.

    Abigail Anderson - Head of IT Global Partner (Corporate Functions) & Chief Information Officer, Office of

    Abigail Anderson, the Head of IT Global Partner (Corporate Functions) & Chief Information Officer, Office of at Viatris, directs the strategic vision and execution of information technology across the organization. This leadership role ensures that IT infrastructure and services effectively support Viatris's global operations, including the development of innovative solutions and the advancement of sustainable operations. Anderson oversees the integration of technology to enhance efficiency, data security, and communication channels for corporate functions. The position requires a forward-thinking approach to technology adoption and a deep understanding of how IT can empower Viatris's mission to improve patient health worldwide. By leading digital transformation initiatives, Abigail Anderson ensures that Viatris remains at the forefront of technological advancement in the pharmaceutical sector, driving operational excellence and supporting the delivery of essential medicines.

    Aparna Reddy - Vice President, Chief of Staff and Head of the Office of the Chief Information Officer. Global Head of PMO

    Aparna Reddy, the Vice President, Chief of Staff and Head of the Office of the Chief Information Officer. Global Head of PMO at Viatris, orchestrates strategic initiatives and program management across the IT function. This role is pivotal in aligning technology roadmaps with Viatris's core mission of improving patient health and advancing sustainable operations. Reddy oversees the global Project Management Office (PMO), ensuring the successful delivery of complex IT projects that support the company's innovative solutions and global reach. Her leadership ensures efficient resource allocation and effective execution of strategic IT priorities. Aparna Reddy's expertise in program management and her close collaboration with the Chief Information Officer are crucial for driving technological advancements and operational excellence. This executive function directly supports Viatris's commitment to providing access to medicines through robust and reliable IT infrastructure.

    Nilüfer Taşyürek - Head Chief Marketing Officer, DC In Process Control & Section

    Nilüfer Taşyürek, the Head Chief Marketing Officer, DC In Process Control & Section at Viatris, directs marketing strategies and initiatives to enhance Viatris's global brand presence and product reach. This role is critical in communicating the company's commitment to improving patient health and providing access to medicines. Taşyürek oversees the development and execution of marketing campaigns, leveraging market insights to drive engagement and support Viatris's mission. The position requires a strategic approach to market positioning and a deep understanding of the pharmaceutical sector's evolving landscape. By leading innovative marketing efforts, Nilüfer Taşyürek ensures that Viatris effectively connects with healthcare providers and patients, reinforcing its dedication to developing innovative solutions and advancing sustainable operations.

    Ramkumar Rayapureddy - Global Chief Information Officer

    Ramkumar Rayapureddy, the Global Chief Information Officer at Viatris, architects the company's comprehensive technology strategy and digital transformation initiatives. This leadership role is fundamental to Viatris's mission of improving patient health by ensuring robust, secure, and innovative IT infrastructure worldwide. Rayapureddy oversees the global IT organization, driving the development and implementation of cutting-edge solutions that enhance operational efficiency and support the advancement of sustainable operations. His focus includes leveraging technology to expand access to medicines and foster collaboration across Viatris's global network. Ramkumar Rayapureddy's strategic vision ensures that Viatris remains at the forefront of technological innovation, enabling the company to meet the evolving needs of patients and healthcare systems effectively.
    Ramkumar Rayapureddy

    Jeff Wallace - Chief of Staff & Chief Supply Officer (Office of Supply)

    Jeff Wallace, the Chief of Staff & Chief Supply Officer (Office of Supply) at Viatris, directs the global supply chain operations and strategic initiatives within the Office of Supply. This critical role ensures the efficient and reliable delivery of Viatris's medicines worldwide, directly supporting the company's mission to improve patient health. Wallace oversees the entire supply chain, from procurement and manufacturing to distribution, focusing on advancing sustainable operations and optimizing logistics. His leadership is essential for maintaining product integrity, managing inventory, and responding effectively to global demand. Jeff Wallace's expertise in supply chain management and his strategic oversight are vital for Viatris's commitment to providing consistent access to essential medications and developing innovative solutions that enhance global health outcomes.
    Jeff Wallace

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    Frequently Asked Questions Regarding Viatris Top Executives and Leadership Team

    Who leads Viatris?
    Viatris is led by Zac Walters (Chief of Staff To the Chief Financial Officer), along with executives such as Paul Campbell (Interim Chief Financial Officer) and Lee Shawn (Head Chief Financial Officer, Finance, Greater Region (China)).
    Who is part of Viatris’s executive team?
    The executive team of Viatris includes leaders such as Zac Walters (Chief of Staff To the Chief Financial Officer), Paul Campbell (Interim Chief Financial Officer), Lee Shawn (Head Chief Financial Officer, Finance, Greater Region (China)) and other senior executives.
    How many executives does Viatris have?
    Viatris has 10 executives leading key business areas.
    What roles are included in Viatris’s leadership team?
    The leadership team of Viatris includes roles such as Chief of Staff To the Chief Financial Officer, Interim Chief Financial Officer, Head Chief Financial Officer, Finance, Greater Region (China), Chief of Staff, Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff.