Billionaire Profile
Ernesto Bertarelli
Global Rank
#212

Image: Public domain | via Wikimedia Commons

Ernesto Bertarelli

CEO, Serono
CH
Real-Time Net Worth
$11.6B
As of December 2025
Age
60
Source
Biotech, investments
Industry
healthcare
Citizenship
CH

Biography

Ernesto Bertarelli is a Swiss-Italian billionaire entrepreneur, investor, philanthropist, and yachtsman, ranking among the world's wealthiest individuals. His wealth stems primarily from the biotechnology sector and strategic investments. Bertarelli is known for transforming the biotechnology firm Serono into a global leader before its $13.3 billion sale to Merck KGaA in 2007. His career also encompasses significant achievements in competitive sailing, including winning the America's Cup. Bertarelli co-chairs the Bertarelli Foundation, actively funding research in neuroscience and marine conservation, while his investment firm, B-Flexion, manages a diverse portfolio of assets. Born in Rome, Italy, Bertarelli's journey from leading a biotech giant to championing philanthropic causes showcases his dynamic influence.

Wealth Over Time

In-Depth Profile

Early Life

Ernesto Silvio Maurizio Bertarelli was born in Rome, Italy, on September 22, 1965. His family relocated to Switzerland in 1977 due to the political climate in Italy. From a young age, Bertarelli was exposed to the pharmaceutical industry through his family. He attended Babson College, graduating in 1989 with a degree emphasizing entrepreneurship. He then pursued an MBA at Harvard Business School, which he completed in 1993.

Rise to Success

After graduating from Harvard, Bertarelli joined the family-owned biotechnology firm Serono. He became the CEO in 1996, at the age of 31, and spearheaded a shift in the company's focus from pharmaceuticals to biotechnology. Under his leadership, Serono experienced substantial growth, with revenues increasing from $809 million in 1996 to $2.8 billion in 2006. In 2007, he sold Serono to Merck KGaA for $13.3 billion.

Key Business Strategies

Bertarelli's strategy involved a decisive move toward biotechnology, focusing on treatments for infertility, multiple sclerosis, and growth hormone deficiencies. His leadership transformed Serono into a global player in these areas. Following the sale of Serono, he established B-Flexion, a family office managing diversified investments with a focus on biotechnology and healthcare innovation.

Philanthropy

Bertarelli co-chairs the Bertarelli Foundation, which funds research in neuroscience and marine conservation. The Foundation has supported various initiatives, including the establishment of marine protected areas and programs for neuroscience research.

Career Milestones

1996

CEO of Serono

Became CEO of Serono, a pharmaceutical company founded by his grandfather.

1998

Ownership of Serono

Inherited ownership of Serono with his sister Dona.

2000

Founded Alinghi

Founded the yachting syndicate Team Alinghi.

2003

America's Cup Victory

Won the America's Cup with Alinghi.

2007

Sale of Serono

Sold Serono to Merck KGaA for $13.3 billion.

2021

Divorce

Announced his divorce from Kirsty Roper.

Philanthropy & Social Impact

Education

Bertarelli Foundation

$75M

Pledged $75 million to Harvard Medical School to advance scientific discovery and a culture of entrepreneurship.

Marine Conservation

Marine Conservation

Undisclosed

Funds the establishment and management of large marine protected areas.

Science

Neuroscience Research

Undisclosed

Supports research through the Bertarelli Program in Translational Neuroscience and Neuroengineering at Harvard Medical School and EPFL.