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Citadel Suggests Mamdani’s Pied-a-Terre Tax Could Jeopardize NYC Expansion

Reported by Forbes
Apr 23, 2026· 3 min read
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Key Takeaways
  • • Citadel signaled potential reconsideration of a $6 billion Midtown Manhattan expansion following Mayor Zohran Mamdani's April 15 announcement of New York City's first pied-à-terre tax on second homes valued above $5 million.
  • • Chief Operating Officer Gerald Beeson's internal memo, reported by the Wall Street Journal and reviewed by Forbes, characterized Mamdani's video announcement—filmed in front of Ken Griffin's townhouse—as "shameful" targeting of out-of-state homeowners and the hedge fund specifically.
  • • Citadel quantified the expansion's economic impact as 6,000 construction jobs and over 15,000 permanent positions, contingent on proceeding with the project; the firm also cited $2.3 billion in taxes paid by employees over five years and $650 million in charitable giving by Griffin.
  • • New York City Mayor Mamdani and Governor Kathy Hochul project the pied-à-terre tax could generate up to $500 million in annual revenue, addressing the city's roughly $5 billion budget gap.
  • • Despite the strongly-worded objection, Beeson acknowledged Citadel's 2,500+ New York colleagues would "continue to help New York City thrive for decades ahead," suggesting the expansion threat may be conditional rather than definitive.
Summary
Citadel has raised the possibility of halting its planned $6 billion New York City expansion in response to Mayor Zohran Mamdani's announcement of a new pied-à-terre tax targeting luxury second homes. On April 15 (Tax Day), Mamdani released a video announcing the city's first-ever annual fee on second homes valued above $5 million, filmed notably in front of billionaire Ken Griffin's Upper West Side townhouse. The video announcement drew criticism not only from Citadel but also from current President Donald Trump, a prominent New York luxury real estate developer.

Citadel's response came via an internal memo from Chief Operating Officer Gerald Beeson, first reported by the Wall Street Journal and subsequently reviewed by Forbes. Beeson characterized Mamdani's approach as "shameful," arguing that invoking Griffin's name and property suggested the mayor believed out-of-state homeowners "do not contribute enough to the greater good." The memo quantified Citadel's economic contributions and the planned expansion's significance: employees have paid $2.3 billion in New York state taxes over the past five years, Griffin personally has donated $650 million to charities in the state, and the Midtown expansion would generate 6,000 construction jobs and over 15,000 permanent positions—though Beeson qualified these figures with "if we move forward."

The pied-à-terre tax proposal reflects New York City's fiscal pressures. Mayor Mamdani and Governor Kathy Hochul have jointly backed the measure as a revenue-generation mechanism, projecting it could raise up to $500 million annually to help address the city's approximately $5 billion budget gap. The tax targets wealthy property owners, with billionaires including Jeff Bezos and Ken Griffin identified among those who would face the new levy based on their known Manhattan real estate holdings.

However, Beeson's memo contained a notable caveat that softened the expansion threat. While objecting strongly to the mayor's characterization and approach, the COO stated that Citadel's 2,500-plus New York colleagues "will continue to help New York City thrive for decades ahead," regardless of whether they become "political targets." This language suggests the expansion's status may remain fluid rather than definitively canceled, contingent on further developments regarding the tax proposal or city-firm relations.

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Sources

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

Forbes Citadel Suggests Mamdani’s Pied-a-Terre Tax Could Jeopardize NYC Expansion