Bill Ackman built Microsoft stake in first quarter during sell-off, betting on AI and cloud growth
Bill Ackman, founder and CEO of Pershing Square Inc., attends his company’s IPO at the New York Stock Exchange (NYSE), in New York City, U.S., April 29, 2026. Brendan McDermid | Reuters Bill Ackman’s Pershing Square has built a position in Microsoft, as the hedge fund manager said the software giant’s recent pullback created a































