"Roz Brewer Resigns as Walgreens CEO, Stock Slides as Worst Performer in Dow"

Walgreens CEO Roz Brewer has resigned after less than three years in the role. The company named Ginger Graham, an independent director, as interim chief executive while it searches for a permanent CEO. Brewer's tenure saw Walgreens focus more on health care services and resolve litigation related to the opioid crisis. The company credited Brewer with leading its efforts to offer mass vaccinations during the pandemic. Walgreens aims to continue its shift towards health care while also investing in retail.