NewsBill Ackman built Microsoft stake in first quarter during selloff, betting on AI and cloud growth Posted on May 15, 2026 by budd87309@gmail.com Bill Ackman’s Pershing Square Capital Management has built a position in Microsoft, the billionaire hedge fund manager said Friday in a post on X. budd87309@gmail.com Cerebras stock falls after blockbuster IPO debut — here’s what’s happening Trump told Xi ‘I don’t talk about’ whether U.S. would defend Taiwan from China