Viatris Executive and Leadership Team

October, 2026

Leadership Overview

Viatris has 10 executives leading key functions including strategy, finance, technology, administration, marketing, and human resources.

Committed to global health access, Viatris advances sustainable operations and develops innovative pharmaceutical solutions to improve patient outcomes at every stage of life.

Leadership Roles at Viatris

  • Interim Chief Financial Officer, Chief Accounting Officer & Corporate Controller - Paul Campbell
  • Administrative Manager, Office of the Chief Financial Officer, Mylan - Renee Miller
  • Chief of Staff To the Chief Financial Officer - Tj Valerio
  • Chief of Staff To the Chief Financial Officer - Zac Walters
  • Chief of Staff - Kristin DiBartolomeo
  • Global Chief Information Officer - Ramkumar R
  • Chief of Staff & Office of Administrative Chief & Transformation Officer - Nicolette O'Rourke
  • Chief Marketing Officer, Quality Assurance & Senior Specialist - Kübra Kunt
  • Chief People Officer & Head of Global Strategic Sourcing & Procurement - Venumadhav Madamanchi
  • Information - Steven Pemberton
  • Paul Campbell - Interim Chief Financial Officer, Chief Accounting Officer & Corporate Controller

    Paul Campbell, the Interim Chief Financial Officer, Chief Accounting Officer & Corporate Controller at Viatris, directs all financial reporting and accounting integrity across global operations. Campbell oversees the fiscal health of the organization, ensuring compliance with international regulatory standards while managing complex capital structures. As the Interim Chief Financial Officer, Chief Accounting Officer & Corporate Controller, Paul Campbell implements robust internal controls to safeguard assets and optimize cash flow. This leadership position requires constant interaction with the Board to provide transparent financial insights and long-term growth projections. By managing corporate controllership functions, Campbell supports the strategic expansion of pharmaceutical product lines. The executive maintains rigorous oversight of financial statements, ensuring accuracy in all reporting cycles. Through disciplined fiscal management, Campbell secures the financial stability necessary for continued investment in innovative healthcare solutions. The Chief Accounting Officer remains dedicated to maintaining investor confidence through precise financial stewardship.
    Paul Campbell

    Renee Miller - Administrative Manager, Office of the Chief Financial Officer, Mylan

    Renee Miller, the Administrative Manager, Office of the Chief Financial Officer, Mylan at Viatris, manages the daily operations and scheduling requirements for the financial leadership team. Miller coordinates complex administrative tasks, ensuring that the Office of the Chief Financial Officer functions with maximum efficiency. As the Administrative Manager, Office of the Chief Financial Officer, Mylan, Renee Miller facilitates communication between financial departments and external stakeholders. This role involves organizing critical meetings, managing documentation, and supporting the execution of financial administrative policies. By maintaining a structured environment, Miller allows the financial leadership to focus on strategic fiscal planning and corporate governance. The Administrative Manager ensures that all administrative processes comply with internal standards and support the broader goals of the organization. Through meticulous attention to detail, Miller provides the necessary support to maintain the operational continuity of the financial division.

    Tj Valerio - Chief of Staff To the Chief Financial Officer

    Tj Valerio, the Chief of Staff To the Chief Financial Officer at Viatris, manages the strategic priorities and operational flow for the financial leadership office. Valerio facilitates the execution of financial initiatives, ensuring that the Chief Financial Officer remains focused on high-impact fiscal decisions. As the Chief of Staff To the Chief Financial Officer, Tj Valerio coordinates between the finance department and other executive functions to ensure alignment on corporate goals. This role involves analyzing financial data to support strategic planning and resource allocation. By managing the flow of information and projects, Valerio enhances the productivity of the financial leadership team. The Chief of Staff To the Chief Financial Officer monitors the progress of key financial projects, ensuring that all objectives are met within established timelines. Through proactive management, Valerio supports the overall financial health and strategic direction of the organization.

    Zac Walters - Chief of Staff To the Chief Financial Officer

    Zac Walters, the Chief of Staff To the Chief Financial Officer at Viatris, oversees the administrative and strategic support systems for the financial division. Walters manages the preparation of executive briefings and ensures that the Chief Financial Officer has the necessary data to drive fiscal strategy. As the Chief of Staff To the Chief Financial Officer, Zac Walters facilitates cross-departmental collaboration to streamline financial reporting and budgeting processes. This role involves identifying operational bottlenecks and implementing solutions to improve the efficiency of the finance team. By managing the daily operations of the office, Walters allows the leadership to focus on long-term financial planning and market expansion. The Chief of Staff To the Chief Financial Officer ensures that all financial communications are accurate and aligned with corporate objectives. Through dedicated support, Walters contributes to the stability and growth of the company's financial operations.

    Kristin DiBartolomeo - Chief of Staff

    Kristin DiBartolomeo, the Chief of Staff at Viatris, coordinates executive workflows and aligns internal operations with the broader mission of expanding global medicine access. DiBartolomeo manages cross-functional communication channels, ensuring that leadership initiatives remain synchronized across international markets. By streamlining decision-making processes, the Chief of Staff facilitates efficient resource allocation for pharmaceutical development projects. Kristin DiBartolomeo monitors organizational performance metrics to support the company's commitment to sustainable operations. This role involves frequent collaboration with senior management to refine corporate strategy and address complex operational challenges. Through rigorous oversight of administrative functions, the Chief of Staff maintains high standards of operational excellence. DiBartolomeo drives internal alignment, ensuring that every department contributes effectively to the overarching goal of improving patient health worldwide. The Chief of Staff remains focused on optimizing organizational agility to meet evolving healthcare demands.

    Ramkumar R - Global Chief Information Officer

    Ramkumar R, the Global Chief Information Officer at Viatris, architects the digital infrastructure required to support worldwide pharmaceutical manufacturing and distribution. R oversees the integration of advanced data analytics and cybersecurity protocols to protect sensitive patient information and proprietary research. As the Global Chief Information Officer, Ramkumar R drives the digital transformation agenda, ensuring that technology platforms enhance operational efficiency across all regional hubs. This role involves managing large-scale IT projects that streamline supply chain visibility and improve manufacturing output. By aligning technological capabilities with business objectives, R enables the company to scale its digital footprint effectively. The Global Chief Information Officer collaborates with other C-suite leaders to implement scalable cloud solutions that support global research initiatives. Through continuous innovation in information systems, R ensures that the organization remains at the forefront of the pharmaceutical industry's digital evolution.

    Nicolette O'Rourke - Chief of Staff & Office of Administrative Chief & Transformation Officer

    Nicolette O'Rourke, the Chief of Staff & Office of Administrative Chief & Transformation Officer at Viatris, leads organizational change initiatives and manages high-level administrative functions. O'Rourke directs the transformation agenda, focusing on restructuring internal processes to improve agility and responsiveness in the pharmaceutical market. As the Chief of Staff & Office of Administrative Chief & Transformation Officer, Nicolette O'Rourke oversees the implementation of strategic projects that enhance operational productivity. This role involves coordinating between various departments to ensure that transformation goals align with the company's mission of empowering healthier lives. By optimizing administrative workflows, O'Rourke reduces operational friction and supports the executive team in executing long-term growth strategies. The Chief of Staff & Office of Administrative Chief & Transformation Officer monitors progress on key performance indicators, ensuring that organizational changes deliver measurable improvements in efficiency and patient-focused outcomes.

    Kübra Kunt - Chief Marketing Officer, Quality Assurance & Senior Specialist

    Kübra Kunt, the Chief Marketing Officer, Quality Assurance & Senior Specialist at Viatris, directs brand strategy and ensures that all marketing communications meet rigorous quality assurance standards. Kunt oversees the development of campaigns that highlight the company's commitment to providing accessible medicines. As the Chief Marketing Officer, Quality Assurance & Senior Specialist, Kübra Kunt integrates quality control protocols into the marketing lifecycle to ensure accuracy and regulatory compliance. This role involves managing market positioning strategies that resonate with diverse patient populations globally. By aligning marketing efforts with quality assurance mandates, Kunt protects the brand reputation and fosters trust with healthcare providers. The Chief Marketing Officer, Quality Assurance & Senior Specialist collaborates with cross-functional teams to ensure that product messaging remains consistent with the company's mission. Through strategic oversight, Kunt drives market growth while maintaining the highest standards of quality and integrity.

    Venumadhav Madamanchi - Chief People Officer & Head of Global Strategic Sourcing & Procurement

    Venumadhav Madamanchi, the Chief People Officer & Head of Global Strategic Sourcing & Procurement at Viatris, directs human capital strategy and manages the global supply chain procurement processes. Madamanchi oversees talent acquisition, employee development, and organizational culture initiatives to ensure a high-performing workforce. As the Chief People Officer & Head of Global Strategic Sourcing & Procurement, Venumadhav Madamanchi also manages the sourcing of raw materials and services necessary for pharmaceutical manufacturing. This dual-focus role requires balancing workforce engagement with the efficiency of global procurement operations. By aligning people strategies with sourcing requirements, Madamanchi ensures that the company maintains a resilient and capable organization. The Chief People Officer & Head of Global Strategic Sourcing & Procurement collaborates with leadership to optimize operational costs while fostering an inclusive work environment. Through strategic management, Madamanchi supports the company's mission of empowering healthier lives through effective talent and supply chain management.

    Steven Pemberton - Information

    Steven Pemberton, the Information at Viatris, manages the integrity and accessibility of critical data assets across the organization. Pemberton oversees the systems that store and process pharmaceutical research, ensuring that information remains secure and compliant with global standards. As the Information, Steven Pemberton directs the implementation of data governance policies that support the company's mission of improving patient health. This role involves collaborating with IT and research teams to optimize data retrieval and analysis capabilities. By maintaining robust information systems, Pemberton enables the organization to leverage data-driven insights for product development and market strategy. The Information ensures that all data management practices align with the company's commitment to sustainable and ethical operations. Through rigorous oversight of information assets, Pemberton supports the company's ability to innovate and deliver high-quality healthcare solutions to patients worldwide.

    Explore Leadership Teams in Manufacturing

    Frequently Asked Questions Regarding Viatris Top Executives and Leadership Team

    Who leads Viatris?
    Viatris is led by Paul Campbell (Interim Chief Financial Officer, Chief Accounting Officer & Corporate Controller), along with executives such as Renee Miller (Administrative Manager, Office of the Chief Financial Officer, Mylan) and Tj Valerio (Chief of Staff To the Chief Financial Officer).
    Who is part of Viatris’s executive team?
    The executive team of Viatris includes leaders such as Paul Campbell (Interim Chief Financial Officer, Chief Accounting Officer & Corporate Controller), Renee Miller (Administrative Manager, Office of the Chief Financial Officer, Mylan), Tj Valerio (Chief of Staff To the Chief Financial Officer) 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 Interim Chief Financial Officer, Chief Accounting Officer & Corporate Controller, Administrative Manager, Office of the Chief Financial Officer, Mylan, Chief of Staff To the Chief Financial Officer, Chief of Staff To the Chief Financial Officer, Chief of Staff.