Viatris Executive and Leadership Team

August, 2026

Leadership Overview

Viatris has 10 executives leading key functions including administrative strategy, financial oversight, global compliance, marketing quality, and information technology.

Focused on empowering healthier lives through accessible medicine, Viatris advances sustainable operations and develops innovative solutions to improve patient health outcomes on a global scale.

Leadership Roles at Viatris

  • Administrative Manager, Office of the Chief Financial Officer, Mylan - Renee Miller
  • Interim Chief Financial Officer - Paul Campbell
  • Chief of Staff To the Chief Financial Officer - Zac Walters
  • Chief of Staff To the Chief Financial Officer - Tj Valerio
  • Chief of Staff - Kristin DiBartolomeo
  • Chief of Staff & Office of Administrative Chief & Transformation Officer - Nicolette O'Rourke
  • Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff - Flo Wright
  • Chief Marketing Officer, Quality Assurance & Senior Specialist - Kübra Kunt
  • Global Chief Information Officer - Ramkumar Rayapureddy
  • Chief Legal Officer - Matthew Maletta
  • 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, coordinates financial administrative functions and supports the fiscal leadership team. Miller manages the daily operations of the office, ensuring that financial reporting and budgetary processes function without interruption. By organizing complex schedules and documentation, the Administrative Manager facilitates seamless communication between the Chief Financial Officer and other executive stakeholders. Renee Miller oversees the logistical requirements of financial planning, allowing the leadership team to focus on capital allocation and market growth strategies. This role involves maintaining strict compliance with internal financial policies while supporting the broader mission of the company. Miller ensures that all administrative tasks align with the goal of providing sustainable, high-quality pharmaceutical products. Through proactive management of office resources, the Administrative Manager enhances the overall effectiveness of the financial department, contributing to the stability and long-term success of the organization.

    Paul Campbell - Interim Chief Financial Officer

    Paul Campbell, the Interim Chief Financial Officer at Viatris, directs the financial strategy and capital management of the organization. Campbell oversees fiscal planning, reporting, and investor relations to ensure the company maintains a strong market position. By managing the balance sheet and optimizing cash flow, the Interim Chief Financial Officer supports the development of innovative pharmaceutical solutions. Paul Campbell collaborates with the executive team to allocate resources toward high-growth areas, ensuring that financial decisions align with the mission of improving patient health. This role involves rigorous analysis of market trends and economic conditions to guide long-term investment strategies. Campbell monitors financial performance across all global regions, providing the necessary oversight to maintain profitability and operational stability. Through disciplined fiscal management, the Interim Chief Financial Officer enables the company to continue its commitment to providing accessible medicines while delivering value to stakeholders and supporting sustainable growth initiatives.

    Zac Walters - Chief of Staff To the Chief Financial Officer

    Zac Walters, the Chief of Staff To the Chief Financial Officer at Viatris, manages the strategic priorities and operational flow within the finance department. Walters coordinates the preparation of financial briefings and supports the Chief Financial Officer in executing capital allocation strategies. By facilitating communication between the finance team and other business units, the Chief of Staff To the Chief Financial Officer ensures that financial objectives remain aligned with the company's mission. Zac Walters monitors the progress of key financial initiatives, providing the necessary support to meet reporting deadlines and regulatory requirements. This role involves analyzing operational data to identify cost-saving opportunities and efficiency improvements. Walters collaborates with internal stakeholders to streamline financial processes, enabling the organization to focus on its core goal of providing accessible healthcare. Through proactive management of the office's agenda, the Chief of Staff To the Chief Financial Officer enhances the overall effectiveness of the financial leadership team.

    Tj Valerio - Chief of Staff To the Chief Financial Officer

    Tj Valerio, the Chief of Staff To the Chief Financial Officer at Viatris, oversees the administrative and strategic execution of financial projects. Valerio manages the flow of information to the Chief Financial Officer, ensuring that the leadership team has the data required for informed decision-making. By coordinating cross-departmental efforts, the Chief of Staff To the Chief Financial Officer supports the implementation of fiscal policies that drive sustainable growth. Tj Valerio monitors the performance of financial systems and processes, identifying areas for optimization to improve overall productivity. This role requires a deep understanding of the company's financial goals and the ability to translate them into actionable tasks. Valerio collaborates with various teams to ensure that financial resources are utilized effectively to support the mission of improving patient health. Through meticulous attention to detail and strategic planning, the Chief of Staff To the Chief Financial Officer contributes to the stability and long-term success of the organization.

    Kristin DiBartolomeo - Chief of Staff

    Kristin DiBartolomeo, the Chief of Staff at Viatris, manages executive workflows and coordinates cross-functional initiatives to ensure operational efficiency. DiBartolomeo aligns internal resources with the broader mission of providing global access to essential medicines. By facilitating communication between leadership tiers, the Chief of Staff optimizes decision-making processes across the organization. Kristin DiBartolomeo monitors key performance indicators to support sustainable operations and patient-focused health solutions. This role requires constant interaction with senior management to maintain strategic focus during complex pharmaceutical development cycles. Through rigorous oversight of administrative priorities, the Chief of Staff drives organizational agility. DiBartolomeo ensures that corporate objectives remain consistent with the commitment to improving health at every stage of life. By streamlining internal governance, the Chief of Staff enables the company to scale its impact effectively across diverse international markets while maintaining high standards of operational excellence.

    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, architects large-scale organizational change and administrative infrastructure. O'Rourke directs the transformation agenda to modernize internal processes, ensuring the company remains competitive in the global pharmaceutical landscape. By overseeing the administrative office, the Transformation Officer aligns daily operations with long-term strategic goals. Nicolette O'Rourke manages complex projects that integrate new technologies into existing workflows, thereby enhancing productivity. This leadership position involves collaborating with various departments to remove operational bottlenecks and foster a culture of continuous improvement. O'Rourke monitors the execution of transformation initiatives to guarantee alignment with the mission of providing accessible healthcare solutions. Through meticulous planning and resource allocation, the Transformation Officer supports the company's ability to scale operations efficiently. O'Rourke maintains a focus on long-term sustainability, ensuring that administrative frameworks support the evolving needs of patients and healthcare providers worldwide.

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

    Flo Wright, the Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff at Viatris, directs the framework for ethical operations and regulatory adherence. Wright manages risk assessment protocols to ensure that all global activities meet stringent pharmaceutical industry standards. By overseeing transparency initiatives, the Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff protects the integrity of the company's supply chain and market interactions. Flo Wright coordinates due diligence processes for new partnerships, mitigating potential liabilities while supporting expansion efforts. This leadership role requires constant vigilance regarding international regulations and internal governance. Wright collaborates with legal and operational teams to implement robust compliance programs that support the mission of providing safe, accessible medicine. Through the systematic evaluation of risk, the Head of Global Compliance Risk, Transparency & Due Diligence Chief of Staff ensures that the company maintains its reputation for excellence and reliability in every region of operation.

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

    Kübra Kunt, the Chief Marketing Officer, Quality Assurance & Senior Specialist at Viatris, directs the brand strategy and quality standards for the company's pharmaceutical portfolio. Kunt manages marketing campaigns that communicate the value of accessible medicine to healthcare providers and patients. By integrating quality assurance protocols into the marketing lifecycle, the Chief Marketing Officer, Quality Assurance & Senior Specialist ensures that all promotional materials and product information meet rigorous regulatory requirements. Kübra Kunt oversees the positioning of innovative solutions in competitive markets, driving demand while maintaining a focus on patient outcomes. This role requires close coordination with product development teams to ensure that marketing efforts accurately reflect the efficacy and safety of the company's offerings. Through strategic market analysis, Kunt identifies opportunities for growth and expansion. By upholding high quality standards, the Chief Marketing Officer, Quality Assurance & Senior Specialist strengthens the company's reputation as a trusted provider of essential health solutions.

    Ramkumar Rayapureddy - Global Chief Information Officer

    Ramkumar Rayapureddy, the Global Chief Information Officer at Viatris, architects the digital infrastructure and technology strategy that supports global pharmaceutical operations. Rayapureddy manages the integration of advanced data systems to enhance manufacturing efficiency and supply chain transparency. By overseeing the company's cybersecurity and information technology roadmap, the Global Chief Information Officer ensures that critical data remains secure and accessible. Ramkumar Rayapureddy leads digital transformation projects that enable the organization to scale its reach and improve patient health outcomes through technology-driven solutions. This role involves collaborating with other C-suite leaders to align IT investments with the company's broader mission of providing accessible medicine. Rayapureddy monitors emerging technological trends to maintain a competitive edge in the pharmaceutical industry. Through the implementation of scalable cloud and data platforms, the Global Chief Information Officer drives operational excellence and supports the company's commitment to innovation and sustainable growth across all international markets.
    Ramkumar Rayapureddy
    Matthew Maletta, the Chief Legal Officer at Viatris, directs the legal strategy and regulatory compliance framework for the entire organization. Maletta manages intellectual property, litigation, and corporate governance to protect the company's interests in the global pharmaceutical market. By overseeing legal operations, the Chief Legal Officer ensures that all business activities align with international laws and ethical standards. Matthew Maletta collaborates with the Board and executive leadership to navigate complex regulatory environments, supporting the mission of providing accessible medicine. This role involves mitigating legal risks associated with product development and market expansion. Maletta leads a team of legal professionals to provide guidance on contracts, mergers, and acquisitions, ensuring that every transaction supports the company's long-term growth. Through proactive legal management, the Chief Legal Officer safeguards the company's reputation and enables the organization to continue its commitment to improving patient health at every stage of life.
    Matthew Maletta

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    Frequently Asked Questions Regarding Viatris Top Executives and Leadership Team

    Who leads Viatris?
    Viatris is led by Renee Miller (Administrative Manager, Office of the Chief Financial Officer, Mylan), along with executives such as Paul Campbell (Interim Chief Financial Officer) and Zac Walters (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 Renee Miller (Administrative Manager, Office of the Chief Financial Officer, Mylan), Paul Campbell (Interim Chief Financial Officer), Zac Walters (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 Administrative Manager, Office of the Chief Financial Officer, Mylan, Interim Chief Financial Officer, Chief of Staff To the Chief Financial Officer, Chief of Staff To the Chief Financial Officer, Chief of Staff.