KKR makes formal approach to Walgreens Boots on record buyout

KKR & Co. has formally approached drugstore giant Walgreens Boots Alliance Inc. about a deal to take the company private, in what could be the biggest-ever leveraged buyout, people familiar with the matter said. The New York-based private equity firm has been preparing a proposal to potentially buy out shareholders of Walgreens Boots, said the people, who asked not to be identified because discussions are private.