Head of Global Commercial Strategy

Cheryl is Head of Global Commercial Strategy with a focus on product and portfolio strategy, pricing and market access, digital, data and analytics, and digital health innovation - to help make HIV a smaller part of people's lives.

Cheryl began her biopharmaceutical career at GSK in Canada. Her first significant leadership role was leading marketing and sales in Canada, modernising customer engagement for accelerated growth across a broad range of medicines and vaccines. In 2011, Cheryl relocated to the US as a member of the GSK US Executive Team, with P&L accountability for Primary Care businesses and leadership of US Pharma operations. Signature contributions included game-changing moves that pivoted the performance trajectory, the launch of new medicines with industry-leading performance, divestments for profit growth, and a relentless energy for team engagement and talent development.

Cheryl holds a Degree in Pharmacy from the University of Toronto, a Master’s in Business Administration from the Schulich School of Business, York University in Toronto, and executive development from Harvard, Wharton and Columbia.

Our Executive Team

Harmony Garges, Chief Medical Officer at ViiV Healthcare
Dr Harmony Garges

Chief Medical Officer

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Kimberly Smith, Head of Research and Development, ViiV Healthcare
Dr Kimberly Smith

Head of Research and Development

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Lynn Baxter, Head of North America, ViiV Healthcare
Lynn Baxter

Head of North America

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Neil Wilkinson, Chief Financial Officer
Neil Wilkinson

Chief Financial Officer

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Cheryl MacDiarmid, Head of Global Commercial Strategy, ViiV Healthcare
Cheryl MacDiarmid

Head of Global Commercial Strategy

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Andrew Stewart, General Counsel and Chief Compliance Officer, ViiV Healthcare
Andrew Stewart

General Counsel and Chief Compliance Officer

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Stephen Rea, Head of External Affairs and Communications ViiV Healthcare
Stephen Rea

Head of External Affairs and Communications

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Lauren Carey, Head of International
Lauren Carey

Head of International

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We are ViiV Healthcare: 100% dedicated to HIV medicines and research and focused on people living with HIV and AIDS.

Together we are engaged in the HIV response throughout the world, supported by a team of over 1,100 dedicated ViiV Healthcare staff working across the globe.

Discover more about who we are, the work we do and what we're doing to advance HIV science, support the delivery of HIV treatment and care; and work with partners to address the stigma and discrimination faced by people living with HIV.


Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in the package leaflet. You can also report side effects directly via the Yellow Card Scheme at or search for MHRA Yellowcard in the Google Play or Apple App store. By reporting side effects, you can help provide more information on the safety of this medicine.

If you are from outside the UK, you can report adverse events to GSK/ViiV by selecting your region and market, here.