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EMD Serono

Member Since 2012

Gary Zieziula

President and Managing Director

Gary Zieziula is President and Managing Director of EMD Serono. He is responsible for all areas of the business across the North America region, which includes the U.S. and Canada, including overseeing strategic planning and maximizing the growth of the organization by driving the performance of the company's franchises.

With more than 30 years of experience in the pharmaceutical industry and specialty care, Mr. Zieziula brings an accomplished career underscored by his ability to improve company performance. He arrived at EMD Serono after two years as an independent consultant focused on opportunity assessments for development-stage products, and mergers and acquisitions.

Career History
Previously, Mr. Zieziula led the financial growth of AMAG Pharmaceuticals as Executive Vice President and Chief Commercial Officer. Prior to joining AMAG Pharmaceuticals, he served as General Manager, and Vice President of Specialty Care at Roche, where he grew the company’s multi-billion dollar specialty care US portfolio – including oncology, hepatitis c, virology, and transplant.

Mr. Zieziula gained international experience serving as the Managing Director for Roche in Greece.  He has also held multiple senior leadership positions at Bristol Myers Squibb and Merck & Co.  Mr. Zieziula holds his BS from State University of New York at Buffalo and an MBA from Canisius College.

CEO Cancer Gold Standard™

Gold Standard  Employer

Since 2011


Nearly all of us are impacted by cancer in some way. At EMD Serono we are committed to making a difference in the lives of patients, their loved ones and healthcare professionals, by accelerating innovation in oncology in order to develop therapies with the potential to transform the way cancer is treated. This commitment extends to our corporate family through employee wellness programs that are designed to help reduce the risk of cancer, promote early detection and provide quality care.

— Gary Zieziula

Gold Standard  Task Force Participation

Task Force Member(s): Ellen Spencer, Manager, Office of the President

Life Sciences Consortium

LSC  Task Force Participation

Task Force Member(s): Zhen Su, MD, MBA, Vice President of Medical Oncology

Project Data Sphere, LLC

an independent initiative of the Life Sciences Consortium

Data Provider

Data Provider to Project Data Sphere, LLC since 2015

Further Support

Founding Member, CEO Roundtable on Cancer - China

EMD Serono

We are the biopharmaceutical division of Merck KGaA, Darmstadt, Germany. We focus exclusively on specialty care - integrating cutting-edge science with industry-leading patient support.

At EMD Serono, we recognized the potential of specialty pharmaceuticals and patient care long ago, and have been dedicated to delivering on their promise ever since.

We have a legacy of both trying to find solutions to hard to treat conditions, as well as developing patient assistance programs that help ensure that those who need our therapies are able to access them.

As one of the top five U.S. companies exclusively focused on specialty care, we see our innovation as a matter of balancing science with emotion – integrating our top minds in research and development with the insights from patients and health care practitioners confronting real- world concerns.