GSK Executive and Leadership Team

August, 2026

Leadership Overview

GSK has 10 executives leading key functions including enterprise operations, human resources, financial management, vaccine development, and commercial marketing.

Focused on global health innovation, GSK delivers life-saving medicines and vaccines while advancing research in immunology, oncology, and infectious diseases to improve patient outcomes worldwide.

Leadership Roles at GSK

  • Site Lead Finance Site Partner & Chief Financial Officer - Gregory Naugle
  • Chief Financial Officer & Director, Finance (Pakistan) - Hasham Baber
  • Chief of Staff To Vice President Finance and Chief Financial Officer US - Lillian Truesdell
  • Chief Financial Officer (India) & Whole-Time Director - Ronojit Biswas
  • Manager, Sample and Promotional Operations Chief of Staff, Enterprise Operations - Yvette Gaines
  • Chief Human Resources Officer & Executive VP, Human Resources (India) - Harsh Trehan
  • Chief of Staff, Vaccines - Penelope Kaltzis
  • Chief Revenue Officer, Scinovo Management (CMC) - Carolyn Grady
  • Manager, Quality System & Chief Marketing Officer, Loc - Brian Morton
  • Manager, Quality of Small Molecules & Chief Marketing Officer - Jesse Parker
  • Gregory Naugle - Site Lead Finance Site Partner & Chief Financial Officer

    Gregory Naugle, the Site Lead Finance Site Partner & Chief Financial Officer at GSK, manages the fiscal health and capital allocation for critical manufacturing and research facilities. Naugle directs the financial planning and analysis processes that underpin the development of specialty medicines and vaccines. Overseeing site-specific budgetary controls, the Site Lead Finance Site Partner & Chief Financial Officer ensures that operational expenditures align with the company's long-term R&D objectives. This leadership role involves close coordination with facility managers to optimize cost structures while maintaining high-quality production standards. Gregory Naugle provides the strategic financial insights necessary for the board to make informed decisions regarding infrastructure investments. By monitoring key performance indicators across the site, the Site Lead Finance Site Partner & Chief Financial Officer identifies opportunities for efficiency gains. These financial strategies support the company's commitment to delivering high-value therapeutic solutions, ensuring that resources remain focused on the most impactful areas of medical research and development.

    Hasham Baber - Chief Financial Officer & Director, Finance (Pakistan)

    Hasham Baber, the Chief Financial Officer & Director, Finance (Pakistan) at GSK, manages the financial governance and economic strategy for the company's operations within the Pakistani market. Baber directs the financial reporting, tax compliance, and treasury functions to ensure stability in a complex regulatory environment. Overseeing the regional financial planning, the Chief Financial Officer & Director, Finance (Pakistan) aligns local commercial activities with the global corporate strategy. This leadership role involves managing currency risks and optimizing working capital to support the distribution of essential medicines. Hasham Baber provides the financial oversight necessary to sustain the company's market presence and growth objectives. By implementing robust internal controls, the Chief Financial Officer & Director, Finance (Pakistan) safeguards the company's assets and ensures the integrity of financial data. These efforts enable the regional team to focus on expanding access to healthcare, as Baber ensures that the financial foundation remains strong enough to support long-term investment in local health initiatives.

    Lillian Truesdell - Chief of Staff To Vice President Finance and Chief Financial Officer US

    Lillian Truesdell, the Chief of Staff To Vice President Finance and Chief Financial Officer US at GSK, manages the strategic agenda and operational priorities for the finance organization within the United States. Truesdell directs the coordination of financial initiatives that support the company's large-scale commercial and R&D operations. Overseeing the executive workflow, the Chief of Staff To Vice President Finance and Chief Financial Officer US ensures that financial leadership remains focused on critical business objectives. This leadership role involves synthesizing complex financial data into actionable insights for the executive team. Lillian Truesdell facilitates cross-departmental collaboration to ensure that financial strategies are integrated with broader corporate goals. By streamlining the decision-making process, the Chief of Staff To Vice President Finance and Chief Financial Officer US enhances the efficiency of the US finance function. These efforts support the company's commitment to financial excellence, as Truesdell ensures that the leadership team has the necessary support to drive growth and innovation.

    Ronojit Biswas - Chief Financial Officer (India) & Whole-Time Director

    Ronojit Biswas, the Chief Financial Officer (India) & Whole-Time Director at GSK, manages the financial strategy and corporate governance for the company's significant operations in India. Biswas directs the financial planning, risk management, and capital allocation processes that support the regional business model. Overseeing the financial health of the Indian entity, the Chief Financial Officer (India) & Whole-Time Director ensures compliance with local and international accounting standards. This leadership role involves working closely with the board to drive long-term value creation and sustainable growth. Ronojit Biswas provides the strategic financial leadership necessary to navigate the complexities of the Indian pharmaceutical market. By optimizing the cost structure and enhancing financial transparency, the Chief Financial Officer (India) & Whole-Time Director supports the company's ability to invest in local research and development. These efforts are critical to the company's global mission, as Biswas ensures that the Indian operations remain financially robust and aligned with the company's overarching strategic goals.

    Yvette Gaines - Manager, Sample and Promotional Operations Chief of Staff, Enterprise Operations

    Yvette Gaines, the Manager, Sample and Promotional Operations Chief of Staff, Enterprise Operations at GSK, directs the integration of promotional logistics with enterprise-wide operational workflows. Gaines oversees the complex distribution channels for pharmaceutical samples, ensuring strict regulatory compliance across all global markets. By synchronizing supply chain data with commercial promotional activities, the Chief of Staff optimizes resource allocation to support the company's mission of delivering essential medicines. This leadership role involves constant collaboration with regional supply chain leads to mitigate distribution bottlenecks. Yvette Gaines maintains rigorous oversight of promotional inventory, which directly impacts the efficiency of commercial teams. Through the implementation of advanced tracking systems, the Manager, Sample and Promotional Operations Chief of Staff, Enterprise Operations enhances the transparency of product movement. These efforts ensure that healthcare providers receive necessary materials promptly, ultimately supporting the broader goal of reaching 2.5 billion people with innovative health solutions.

    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, architects the talent acquisition and organizational development strategies across the South Asian market. Trehan drives the cultural transformation necessary to support the company's research-heavy business model. Overseeing the human capital lifecycle, the Chief Human Resources Officer & Executive VP, Human Resources (India) ensures that the workforce remains aligned with global pharmaceutical standards and local regulatory requirements. This leadership role involves designing comprehensive training programs that empower scientists and commercial staff to excel in a competitive biotechnology landscape. Harsh Trehan fosters an inclusive environment that attracts top-tier talent to the regional operations. By optimizing performance management frameworks, the Chief Human Resources Officer & Executive VP, Human Resources (India) directly contributes to the operational agility required for sustained growth. These initiatives strengthen the organizational foundation, enabling the company to maintain its position as a leader in the global pharmaceutical sector.
    Harsh Trehan

    Penelope Kaltzis - Chief of Staff, Vaccines

    Penelope Kaltzis, the Chief of Staff, Vaccines at GSK, coordinates the strategic initiatives and operational priorities within the global vaccine division. Kaltzis directs the flow of information between research teams and commercial leadership to accelerate the development of preventative health solutions. Overseeing cross-functional projects, the Chief of Staff, Vaccines ensures that the division meets its ambitious targets for infectious disease prevention. This leadership role involves managing complex stakeholder relationships to maintain alignment with the company's overarching mission. Penelope Kaltzis facilitates the execution of high-priority vaccine programs, ensuring that resources are deployed effectively to address global health challenges. By streamlining internal communication and decision-making processes, the Chief of Staff, Vaccines enhances the agility of the vaccine business unit. These efforts are critical to the company's goal of expanding its impact on global health, as Kaltzis ensures that every strategic initiative remains focused on delivering safe and effective immunization products to diverse populations.

    Carolyn Grady - Chief Revenue Officer, Scinovo Management (CMC)

    Carolyn Grady, the Chief Revenue Officer, Scinovo Management (CMC) at GSK, drives the commercial strategy and revenue growth for specialized pharmaceutical portfolios. Grady directs the market access and pricing initiatives that ensure the company's medicines reach patients in need. Overseeing the commercialization of complex therapeutic products, the Chief Revenue Officer, Scinovo Management (CMC) aligns sales efforts with the company's research-driven value proposition. This leadership role involves developing partnerships with healthcare providers and institutions to expand the reach of specialty medicines. Carolyn Grady monitors market trends to identify new opportunities for revenue generation and portfolio expansion. By optimizing the sales funnel and enhancing customer engagement, the Chief Revenue Officer, Scinovo Management (CMC) ensures that the company meets its financial targets while delivering superior health outcomes. These strategic efforts are essential to the company's mission, as Grady ensures that the commercial organization remains focused on providing high-value solutions to the global healthcare market.

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

    Brian Morton, the Manager, Quality System & Chief Marketing Officer, Loc at GSK, oversees the integration of rigorous quality standards with localized marketing strategies. Morton directs the development of promotional campaigns that highlight the efficacy and safety of the company's pharmaceutical products. Overseeing the quality management systems, the Manager, Quality System & Chief Marketing Officer, Loc ensures that all marketing materials comply with strict regulatory guidelines. This leadership role involves balancing the need for impactful commercial messaging with the imperative of maintaining the highest quality standards. Brian Morton coordinates with regulatory affairs and commercial teams to ensure that product information is accurate and accessible to healthcare professionals. By aligning marketing efforts with quality assurance protocols, the Manager, Quality System & Chief Marketing Officer, Loc strengthens the company's reputation for reliability. These efforts are vital to the company's mission, as Morton ensures that the marketing organization remains committed to providing transparent and trustworthy information to the medical community.

    Jesse Parker - Manager, Quality of Small Molecules & Chief Marketing Officer

    Jesse Parker, the Manager, Quality of Small Molecules & Chief Marketing Officer at GSK, directs the quality assurance processes for small molecule drug development while leading the commercial marketing strategy for these therapeutic areas. Parker oversees the technical validation of manufacturing processes to ensure that all products meet the highest safety and efficacy standards. By integrating quality control with commercial marketing, the Manager, Quality of Small Molecules & Chief Marketing Officer ensures that the value of the company's small molecule portfolio is effectively communicated to healthcare providers. This leadership role involves managing the lifecycle of these products from development to market launch. Jesse Parker coordinates with R&D and commercial teams to ensure that marketing campaigns are grounded in scientific evidence. Through the implementation of rigorous quality protocols, the Manager, Quality of Small Molecules & Chief Marketing Officer enhances the trust of patients and physicians. These efforts support the company's commitment to delivering high-quality medicines that address critical health needs.

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    Frequently Asked Questions Regarding GSK Top Executives and Leadership Team

    Who leads GSK?
    GSK is led by Gregory Naugle (Site Lead Finance Site Partner & Chief Financial Officer), along with executives such as Hasham Baber (Chief Financial Officer & Director, Finance (Pakistan)) and Lillian Truesdell (Chief of Staff To Vice President Finance and Chief Financial Officer US).
    Who is part of GSK’s executive team?
    The executive team of GSK includes leaders such as Gregory Naugle (Site Lead Finance Site Partner & Chief Financial Officer), Hasham Baber (Chief Financial Officer & Director, Finance (Pakistan)), Lillian Truesdell (Chief of Staff To Vice President Finance and Chief Financial Officer US) 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 Site Lead Finance Site Partner & Chief Financial Officer, Chief Financial Officer & Director, Finance (Pakistan), Chief of Staff To Vice President Finance and Chief Financial Officer US, Chief Financial Officer (India) & Whole-Time Director, Manager, Sample and Promotional Operations Chief of Staff, Enterprise Operations.