GSK Executive and Leadership Team

May, 2026

Leadership Overview

GSK has 10 executives leading key functions including revenue generation, information technology, financial operations, marketing, strategic operations, quality assurance, and human resources.

Driven by a mission to unite science, technology, and talent to get ahead of disease together, GSK focuses on discovering, developing, and delivering innovative medicines and vaccines. The company's leadership philosophy centers on a commitment to ethical practices, scientific excellence, and patient well-being, aiming to positively impact global health.

Leadership Roles at GSK

  • Chief Financial Officer & Director, Finance (Pakistan) - Hasham Baber
  • Chief Revenue Officer - Samichha Mahato
  • Chief Information Officer - Getty Polas
  • Manager, Analytical Science and Technology, Chief Marketing Officer Latin America - Patricia DeAngelis
  • Chief of Staff To the MD - Manthan Doshi
  • Manager, Quality System & Chief Marketing Officer, Loc - Brian Morton
  • Director, Quality & Chief Marketing Officer, Quality - Donna Walker
  • Digital, Data & Technology Chief of Staff (US) - Michael Escamilla
  • Chief of Staff & Vice President, Medical Services - Antoinette Skalamera
  • Chief Human Resources Officer & Executive VP, Human Resources (India) - Harsh Trehan
  • Hasham Baber - Chief Financial Officer & Director, Finance (Pakistan)

    Hasham Baber, the Chief Financial Officer & Director, Finance (Pakistan) at GSK, directs the financial strategy and operational execution for the company, with a specific focus on the Pakistan region. Overseeing all financial planning, budgeting, reporting, and investment activities, Baber ensures fiscal responsibility and drives sustainable financial growth. This leadership position involves managing capital allocation, optimizing financial performance, and mitigating financial risks across GSK's diverse portfolio. By providing strategic financial insights, Hasham Baber directly supports the company's ability to fund its extensive research and development pipeline and expand its global reach. The Chief Financial Officer's expertise is crucial for maintaining GSK's financial health and achieving its ambitious long-term objectives.

    Samichha Mahato - Chief Revenue Officer

    Samichha Mahato, the Chief Revenue Officer at GSK, directs all revenue-generating activities and commercial strategies. Overseeing global sales operations, Mahato ensures alignment with GSK's overarching business objectives and market penetration goals. This leadership role involves optimizing sales funnels, expanding market share through targeted campaigns, and securing long-term financial stability by driving consistent revenue growth. By focusing on customer acquisition and retention, Samichha Mahato directly impacts the company's profitability and its ability to fund critical research and development initiatives. The Chief Revenue Officer's strategic vision is essential for navigating competitive markets and maximizing commercial success across all GSK product lines, including specialty medicines and vaccines.

    Getty Polas - Chief Information Officer

    Getty Polas, the Chief Information Officer at GSK, architects and executes the company's global digital transformation and technology strategy. Overseeing all IT infrastructure, cybersecurity, and data management, Polas ensures robust and secure technological operations that support GSK's research, development, and commercial functions. This critical role involves driving innovation in digital platforms, enhancing data analytics capabilities, and implementing advanced systems to streamline operations across the organization. By fostering a culture of technological advancement, Getty Polas directly enables GSK's mission to get ahead of disease through efficient data utilization and cutting-edge digital solutions. The Chief Information Officer's leadership ensures that GSK maintains a competitive technological edge in the pharmaceutical and biotechnology sectors.

    Patricia DeAngelis - Manager, Analytical Science and Technology, Chief Marketing Officer Latin America

    Patricia DeAngelis, the Manager, Analytical Science and Technology, Chief Marketing Officer Latin America at GSK, spearheads marketing initiatives and analytical science advancements across the Latin American region. Overseeing market strategy development and execution, DeAngelis ensures GSK's products effectively reach and serve patients throughout Latin America. This dual-focused role involves leveraging analytical insights to refine marketing approaches and drive commercial success, while also contributing to the scientific rigor of analytical technologies. By bridging scientific innovation with market needs, Patricia DeAngelis directly enhances GSK's presence and impact in key emerging markets. The Chief Marketing Officer Latin America's leadership is vital for adapting global strategies to regional demands and fostering strong market positions.

    Manthan Doshi - Chief of Staff To the MD

    Manthan Doshi, the Chief of Staff To the MD at GSK, provides strategic support and operational oversight to the Managing Director, ensuring efficient execution of key initiatives. Overseeing cross-functional projects and driving strategic alignment, Doshi facilitates seamless communication and collaboration across various departments. This pivotal role involves managing critical priorities, optimizing resource allocation, and ensuring that the Managing Director's vision is translated into actionable plans. By acting as a key liaison and strategic advisor, Manthan Doshi directly contributes to the effective governance and operational efficiency of GSK's leadership team. The Chief of Staff's proactive approach is essential for navigating complex business challenges and advancing the company's mission.

    Brian Morton - Manager, Quality System & Chief Marketing Officer, Loc

    Brian Morton, the Manager, Quality System & Chief Marketing Officer, Loc at GSK, leads quality system management and local marketing efforts. Overseeing the implementation and maintenance of robust quality assurance protocols, Morton ensures adherence to stringent regulatory standards across operations. Concurrently, as Chief Marketing Officer, Loc, Morton drives localized marketing strategies to enhance brand presence and product adoption within specific geographic areas. This integrated role demands a keen understanding of both scientific compliance and market dynamics. By ensuring product integrity and effective market engagement, Brian Morton directly supports GSK's commitment to patient safety and commercial success. The dual focus on quality and localized marketing is critical for maintaining trust and driving growth.

    Donna Walker - Director, Quality & Chief Marketing Officer, Quality

    Donna Walker, the Director, Quality & Chief Marketing Officer, Quality at GSK, directs quality assurance functions and marketing strategies related to quality initiatives. Overseeing the development and implementation of comprehensive quality management systems, Walker ensures that all GSK products meet the highest standards of safety and efficacy. As Chief Marketing Officer, Quality, Donna Walker communicates the value of GSK's rigorous quality standards to internal and external stakeholders, reinforcing the company's commitment to excellence. This leadership position is vital for maintaining regulatory compliance and building trust with healthcare professionals and patients. By championing quality, Donna Walker directly contributes to GSK's reputation and its ability to deliver life-changing medicines and vaccines.

    Michael Escamilla - Digital, Data & Technology Chief of Staff (US)

    Michael Escamilla, the Digital, Data & Technology Chief of Staff (US) at GSK, provides strategic operational support for digital, data, and technology initiatives within the United States. Overseeing the coordination of key projects and ensuring alignment with broader technology roadmaps, Escamilla facilitates the efficient deployment of digital solutions and data analytics capabilities. This role is crucial for driving technological innovation and optimizing operational efficiency across GSK's US-based operations. By enhancing the integration of digital tools and data-driven decision-making, Michael Escamilla directly supports GSK's mission to leverage technology in advancing healthcare solutions. The Chief of Staff's focus on the US market ensures targeted implementation of global technology strategies.

    Antoinette Skalamera - Chief of Staff & Vice President, Medical Services

    Antoinette Skalamera, the Chief of Staff & Vice President, Medical Services at GSK, directs strategic operations within medical services and provides high-level support to executive leadership. Overseeing the coordination of critical medical initiatives and ensuring alignment with GSK's research and development objectives, Skalamera plays a key role in advancing the company's scientific agenda. This leadership position involves managing complex projects, fostering interdepartmental collaboration, and ensuring the effective delivery of medical services. By bridging strategic planning with operational execution, Antoinette Skalamera directly contributes to GSK's ability to bring innovative medicines and vaccines to patients. The Vice President's expertise is essential for navigating the intricate landscape of medical affairs and patient support.

    Harsh Trehan - Chief Human Resources Officer & Executive VP, Human Resources (India)

    Harsh Trehan, the Chief Human Resources Officer & Executive VP, Human Resources (India) at GSK, leads human capital strategy and execution for the company, with a significant focus on the Indian operations. Overseeing talent acquisition, development, employee engagement, and organizational design, Trehan ensures GSK cultivates a high-performing workforce aligned with its global mission. This critical role involves fostering a culture of innovation, diversity, and inclusion, essential for driving GSK's success in discovering and delivering life-changing medicines. By championing employee growth and well-being, Harsh Trehan directly contributes to GSK's ability to attract and retain top talent, particularly within the dynamic Indian market. The Executive VP's leadership is fundamental to building a robust and motivated global team.
    Harsh Trehan

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    Frequently Asked Questions Regarding GSK Top Executives and Leadership Team

    Who leads GSK?
    GSK is led by Hasham Baber (Chief Financial Officer & Director, Finance (Pakistan)), along with executives such as Samichha Mahato (Chief Revenue Officer) and Getty Polas (Chief Information Officer).
    Who is part of GSK’s executive team?
    The executive team of GSK includes leaders such as Hasham Baber (Chief Financial Officer & Director, Finance (Pakistan)), Samichha Mahato (Chief Revenue Officer), Getty Polas (Chief Information Officer) and other senior executives.
    How many executives does GSK have?
    GSK has 10 executives leading key business areas.
    What roles are included in GSK’s leadership team?
    The leadership team of GSK includes roles such as Chief Financial Officer & Director, Finance (Pakistan), Chief Revenue Officer, Chief Information Officer, Manager, Analytical Science and Technology, Chief Marketing Officer Latin America, Chief of Staff To the MD.