Bill Gates’ Foundation sold every last Microsoft share it owned

The Bill Gates Foundation Trust sold its entire Microsoft (MSFT) stake in Q1 2026, offloading the final 7.7 million shares worth $3.2 billion. The exit caps a two-year wind-down from 28.5 million shares, funding Gates’ plan to spend the endowment by 2045. Microsoft stock slipped to $422.07 even as Pershing Square’s Bill Ackman disclosed a fresh $2.3 billion MSFT buy the same day.