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Executive Leadership

Cecile Guegan full headshot

Cecile Guegan

Cecile is Interim Chief Financial Officer and Executive Vice President for Pfizer, bringing more than 25 years of global finance leadership in the pharmaceutical industry, built across research and development, commercial, therapeutic areas, geographies as well as transformation initiatives.

Most recently, Cecile served as Senior Vice President of Finance for Pfizer’s Global Biopharmaceuticals business, strategically partnering with the Chief Commercial Officers and Group Presidents, driving execution, optimizing investments and identifying new sources of growth. Throughout her career, she has paired commercial acumen with a consistent ability to build and transform finance organizations — delivering efficiency while strengthening the quality of support to the business.

She joined Pfizer through the 2009 Wyeth acquisition, having already served as CFO across Wyeth’s Asia Pacific and EMEA/Canada businesses — overseeing operations across more than 30 countries and developing finance organizations in markets ranging from Europe to Asia. At Pfizer, she held successive finance leadership roles spanning Oncology, Research and Development, and the Global Biopharmaceuticals Group, partnering closely with business unit presidents on strategy, portfolio prioritization, and major transactions including the Seagen acquisition in 2024.

She holds a master’s degree in Management (Audit and Finance) from the Graduate School of Management of Brest, France.

Other People In Executive Leadership

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Dr. Albert Bourla

Chairman and Chief Executive Officer

payal_sahni_becher
Payal Sahni Becher

Chief People Experience Officer, Executive Vice President

chris_boshoff_300x170_v4.jpg
Chris Boshoff, MD, PhD

Chief Scientific Officer and President, Research & Development

alexandre_de_germay_2025
Alexandre de Germay

Chief International Commercial Officer, Executive Vice President

Dennis Hancock headshot thumbnail
Dennis Hancock

Chief Information Officer, Executive Vice President

lindsay_havern_2025
Lindsay Havern

Head of Strategy, Executive Operations, Counsel to the CEO

doug_lankler_2025
Doug Lankler

Chief Legal Officer, Executive Vice President

Exec  Aamir Malik 2025 Headshote
Aamir Malik

Chief U.S. Commercial Officer, Executive Vice President

Mike McDermott headshot thumbnail
Mike McDermott

Chief Global Supply and Quality Officer, Executive Vice President

Executive Leadership

Cecile Guegan full headshot

Cecile Guegan

Cecile is Interim Chief Financial Officer and Executive Vice President for Pfizer, bringing more than 25 years of global finance leadership in the pharmaceutical industry, built across research and development, commercial, therapeutic areas, geographies as well as transformation initiatives.

Most recently, Cecile served as Senior Vice President of Finance for Pfizer’s Global Biopharmaceuticals business, strategically partnering with the Chief Commercial Officers and Group Presidents, driving execution, optimizing investments and identifying new sources of growth. Throughout her career, she has paired commercial acumen with a consistent ability to build and transform finance organizations — delivering efficiency while strengthening the quality of support to the business.

She joined Pfizer through the 2009 Wyeth acquisition, having already served as CFO across Wyeth’s Asia Pacific and EMEA/Canada businesses — overseeing operations across more than 30 countries and developing finance organizations in markets ranging from Europe to Asia. At Pfizer, she held successive finance leadership roles spanning Oncology, Research and Development, and the Global Biopharmaceuticals Group, partnering closely with business unit presidents on strategy, portfolio prioritization, and major transactions including the Seagen acquisition in 2024.

She holds a master’s degree in Management (Audit and Finance) from the Graduate School of Management of Brest, France.

Other People In Executive Leadership

albert_bourla_2025_300x170.jpg
Dr. Albert Bourla

Chairman and Chief Executive Officer

payal_sahni_becher
Payal Sahni Becher

Chief People Experience Officer, Executive Vice President

chris_boshoff_300x170_v4.jpg
Chris Boshoff, MD, PhD

Chief Scientific Officer and President, Research & Development

alexandre_de_germay_2025
Alexandre de Germay

Chief International Commercial Officer, Executive Vice President

Dennis Hancock headshot thumbnail
Dennis Hancock

Chief Information Officer, Executive Vice President

lindsay_havern_2025
Lindsay Havern

Head of Strategy, Executive Operations, Counsel to the CEO

doug_lankler_2025
Doug Lankler

Chief Legal Officer, Executive Vice President

Exec  Aamir Malik 2025 Headshote
Aamir Malik

Chief U.S. Commercial Officer, Executive Vice President

Mike McDermott headshot thumbnail
Mike McDermott

Chief Global Supply and Quality Officer, Executive Vice President