Walgreen Co., the largest drug store chain in the United States, has completed the acquisition of the remaining 55% equity ownership in Alliance Boots GmbH, the Swiss parent company of a leading international pharmacy-led health and beauty group. Walgreens had acquired 45% in Alliance Boots GmbH in 2012 with the option to proceed to a full combination by acquiring the remaining 55%.

The transaction resulted in Walgreens becoming a wholly owned subsidiary of Walgreens Boots Alliance, Inc., a NASDAQ listed company.

Bär & Karrer acts as Swiss legal counsel to Walgreens. The team includes Thomas U. Reutter, Roland Truffer, Daniel Heiniger, Annette Weber, Rebecca Schori and Anna Capaul.