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Bill Ackman’s IPO Ties His $9 Billion Fortune to Public Markets

Reported by Bloomberg
Apr 29, 2026· 2 min read
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Key Takeaways
  • • Bill Ackman launched a dual IPO on April 29, 2026, listing Pershing Square USA (PSUS) and parent company Pershing Square Inc. (PS) on the New York Stock Exchange, raising approximately $5 billion in gross proceeds.
  • • Pershing Square USA opened at $42 per share (priced at $50 in the IPO), while Pershing Square Inc. opened at $24 per share; IPO investors received 0.2 share of PS for each PSUS share purchased, creating a combined opening value near $46.80 per PSUS share.
  • • The offering increased Pershing Square's total assets under management by approximately 25% to roughly $25 billion, with approximately $2.8 billion of the $5 billion raised already committed by large institutional investors.
  • • This represents one of the 10 largest public offerings in the past decade and marks Ackman's successful second attempt at taking his firm public, following a withdrawn 2024 listing attempt amid weak investor demand.
  • • The dual listing democratizes access to Ackman's stock-picking strategy, previously available only to ultra-high-net-worth investors, to retail investors at $50 per share entry point.
Summary
Billionaire investor Bill Ackman successfully executed a long-anticipated dual initial public offering on April 29, 2026, listing both his closed-end investment fund Pershing Square USA Ltd. and its parent management company Pershing Square Inc. on the New York Stock Exchange. The twin listings marked a pivotal moment for Ackman's $9 billion personal fortune and his investment empire, which had previously remained privately held and restricted to institutional capital.

The IPO raised approximately $5 billion in gross proceeds, with Pershing Square USA trading under ticker PSUS and opening at $42 per share, while Pershing Square Inc. commenced trading under ticker PS and opened at $24 per share. The offering was structured to provide IPO participants with 0.2 share of PS for each PSUS share purchased, effectively combining to approximately $46.80 per PSUS share at opening. According to Bloomberg, approximately $2.8 billion of the $5 billion raised had been pre-committed by large institutional investors prior to the public offering, indicating significant demand from sophisticated capital allocators.

The capital raised through the dual listing expanded Pershing Square's assets under management by roughly 25%, bringing total AUM to approximately $25 billion. The offering ranks among the 10 largest public offerings globally in the past decade, according to Dealogic data. The listing removes the previous $50,000 or higher minimum investment barriers that had traditionally restricted Ackman's closed-end fund to ultra-wealthy investors, now permitting retail participation at $50 per share.

This represents Ackman's second attempt at taking his investment firm public. The investor had withdrawn a similar IPO attempt in 2024 when investor interest proved insufficient to support the offering's ambitions. The 2026 listing suggests a notably improved receptivity to public market access for alternative investment vehicles and validates Ackman's strategy of diversifying his capital base beyond private institutional allocators.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Bloomberg Bill Ackman’s IPO Ties His $9 Billion Fortune to Public Markets