Bill Ackman is one of the most closely followed investment personalities on Wall Street. As CEO of hedge fund Pershing Square Capital Management, Ackman has been at the center of some creatively structured investments in recent history.

Uber (NYSE: UBER) got a huge new investor last week when hedge fund manager Bill Ackman announced a $2.3 billion stake in the company. Ackman is known as a long-term investor willing to bet big on concentrated ideas,

Uber’s stock extends its surge as hedge funder Ackman says he’s amassed a 30.3-million-share stake since early January.

Go big or go home. Billionaire investor Bill Ackman of Pershing Square Capital Management takes that sentiment to heart. His hedge fund has some $13 billion in assets under management, but he owns just 10 stocks (track his portfolio here),

Bill Ackman has amassed a roughly $2.3 billion stake in Uber, saying in a post on X that the ride-hailing company's stock is undervalued. Ackman said Friday in the post that his Pershing Square invest