Stefano Pessina (born 1941) is an Italian-born Monegasque billionaire businessman and the single largest shareholder in Walgreens Boots Alliance. Stefano Pessina is Executive Vice Chairman and Chief Executive Officer of Walgreens Boots Alliance.
In 1977, he took over his family's pharmaceutical wholesaler in Naples and turned it into Alliance Santé, a Franco-Italian pharmaceutical wholesale group. In 1997, it merged with Alliance UniChem, and he joined its Board of Directors. From 2001 to 2004, he served as its Chief Executive. He served as Executive Deputy Chairman, and later as Executive Chairman.
Stefano served as Executive Chairman of Alliance Boots from 2007 – 2014 and sat on the Board of Directors of Walgreens until Aug 2014. He now serves on the Board of Directors at Walgreens Boots Alliance. He also serves on the Board of Directors of the Consumer Goods Forum.
He is separated from his wife Barbara, and they have two children. He has been the partner of Ornella Barra for over 30 years. As of February 2015, he is worth US$11.4 billion, owning around 15% of Walgreens Boots Alliance.