Pershing Square Shares Rebound After Ackman Bought Stock

Pershing Square Capital Management CEO Bill Ackman, center, rings the opening bell during the company's IPO on the floor of the New York Stock Exchange on April 29.

Photographer: Michael Nagle/Bloomberg

Shares in Bill Ackman’s new $5 billion listed investment fund and his asset management company rebounded in the second day after their IPO, as the hedge fund billionaire revealed he had put more of his own money behind the deal.

Ackman bought 500,000 shares of Pershing Square USA Ltd., the closed-end fund, and 800,000 shares of Pershing Square Inc., the management firm, he wrote in an X post early Thursday.