Ackman's Pershing Square takes stake in Microsoft, citing 'compelling' valuation

Bill Ackman, chief executive officer of Pershing Square Capital Management LP, center, during the company's initial public offering (IPO) on the floor of the New York Stock Exchange (NYSE) in New York, US, on Wednesday, April 29, 2026. Michael Nagle | Bloomberg | Bill Ackman's hedge fund Pershing Square will disclose a new ⁠position in Microsoft later in the day, the ​billionaire investor ​said on ​Friday, arguing that the tech giant sits at a "highly compelling valuation". Ackman's new ⁠closed-end ‌fund Pershing Square USA , which ⁠debuted on the NYSE last month, has also recently made Microsoft a core holding, ‌he said in a post on social media platform X. Pershing's ​bet on Microsoft comes amid Ackman's growing appetite for tech holdings. In February, he ⁠said Pershing had bought shares in Meta Platforms, ‌betting the Facebook parent ‌will benefit from artificial intelligence. Last year, he made a new investment in ⁠ Amazon and the firm previously invested in ⁠ Alphabet in late ⁠2022. Microsoft shares have fallen more than 15% so far this ​year, as investors worry ‌that the company's early-mover advantage in the AI race is losing ground as Google and Amazon make strong progress ​in their own AI ‌efforts.