Billionaire Bill Ackman Piled Into Amazon and Microsoft and Slashed His Fund's Mammoth Stake in This AI Kingpin by 95%
Key Points Quarterly-filed Form 13Fs offer a way for investors to track which stocks Wall Street’s savviest money managers are buying and selling. Billionaire Bill Ackman prefers a concentrated investment portfolio that’s packed with perceived price dislocations. Pershing Square Capital Management’s boss nearly cut the …