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Ken Griffin fires back at NYC Mayor Zohran Mamdani 'tax the rich' video featuring his $238 million penthouse

Reported by Fortune ·Foxbusiness
Apr 23, 2026· 2 min read
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Key Takeaways
  • • NYC Mayor Zohran Mamdani announced the city's first-ever pied-à-terre tax on luxury properties valued above $5 million with absentee owners, featuring Ken Griffin's $238 million penthouse at 220 Central Park South in a Tax Day promotional video that garnered 470,000 views and 48,000 likes.
  • • Citadel COO Gerald Beeson responded with a veiled threat to halt a $6 billion redevelopment project at 350 Park Avenue that would generate 6,000 construction jobs and 15,000+ permanent positions, linking the company's commitment to the mayor's personal targeting of Griffin.
  • • The conflict represents a high-stakes clash between municipal tax policy and major corporate capital deployment, with Citadel's implicit threat signaling potential consequences for aggressive wealth taxation in Manhattan.
  • • Griffin, worth over $51 billion, purchased the 220 Central Park South penthouse in 2019 at then-record pricing for a U.S. residential property; the property now serves as a focal point in New York's expanding debate over wealth concentration and tax burden allocation.
Summary
New York City Mayor Zohran Mamdani launched the city's inaugural pied-à-terre tax on Tax Day 2026, fulfilling a signature campaign promise through a strategically filmed video shot outside hedge fund billionaire Ken Griffin's $238 million penthouse at 220 Central Park South. The video, which Mamdani used to announce an annual levy on luxury properties valued above $5 million owned by non-primary residents, achieved significant social media traction with nearly 470,000 views and 48,000 likes within days of publication.

Griffin's Citadel responded sharply one week later through a communication from Citadel COO Gerald Beeson that effectively tied the company's commitment to a major Manhattan development project to the mayor's public positioning. Beeson's letter, obtained by the Wall Street Journal, referenced a planned $6 billion redevelopment of 350 Park Avenue that would create 6,000 highly paid construction jobs and support over 15,000 permanent positions in Midtown. The correspondence explicitly criticized Mamdani for using Griffin's name as an example of wealthy individuals allegedly not bearing their fair share of New York's fiscal obligations, characterizing such messaging as "shameful" and questioning the city's spending efficiency.

The conflict crystallizes a fundamental tension between municipal revenue generation through progressive taxation and capital investment decisions by major institutional players. Griffin's 2019 purchase of the penthouse established a record at the time for residential real estate in the United States, making the property a visible emblem in debates over wealth concentration. The pied-à-terre tax represents Mamdani's effort to address inequality through targeted taxation, while Citadel's conditional language around the Park Avenue project suggests potential economic consequences tied to the political environment surrounding wealth taxation in New York.

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Sources

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

Fortune Ken Griffin fires back at NYC Mayor Zohran Mamdani 'tax the rich' video featuring his $238 million penthouse Foxbusiness Ken Griffin fires back at Mamdani, says business leaders must 'fight for their city'