Gregory David Wasson (born October 19, 1958) is co-founder and president of Wasson Enterprise, a family-based investment office, the executive chairman of Innventure, co-founder of CoolerScreens, and the former president and chief executive officer (CEO) of Walgreens Boots Alliance (NASDAQ: WBA).
Prior to the merger of Walgreens and Alliance Boots, Wasson was president and CEO of Walgreens, the US's largest retail community pharmacy chain.
Wasson served as CEO at Walgreens from 2009 to 2014.
Since joining the company in 1980, he was appointed to positions of increasing responsibility, including president of Walgreens Health Initiatives in 2002, senior vice president in 2004, executive vice president in 2005, and president and chief operating officer in 2007.
Wasson currently serves on the board of directors of Health Care Service Corporation (HCSC), The Economic Club of Chicago, Corporate Leadership Center, and the Museum of Science and Industry.