Please note that Walgreens Boots Alliance owns the retail pharmacy chains Walgreens and Boots and several pharmaceutical manufacturing and distribution companies. The company is the largest shareholder in AmerisourceBergen. Per a Reuters article, Walgreens Boots Alliance has sold nearly 3% stake in AmerisourceBergen, bringing down its total stake to approximately 17%, for proceeds of $1 billion. AmerisourceBergen's share repurchase is in concurrence with the recent WBA's stake sale.