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Billionaire Ken Griffin Blasts Mamdani’s ‘Personal Attack’—Says He’s Meeting With Gov. Hochul

Griffin said Mamdani’s use of his townhouse was a personal attack, as Citadel warned the tax could threaten 6,000 construction jobs and 15,000 permanent jobs.

  • On April 15, New York City Mayor Zohran Mamdani filmed a video in front of billionaire Citadel CEO Ken Griffin's Manhattan penthouse to promote a pied-à-terre tax on luxury second homes, sparking sharp pushback from the hedge fund.
  • Backed by Gov. Kathy Hochul, the proposed pied-à-terre tax targets properties worth more than $5 million to help close New York City's $5 billion deficit, which officials say requires new revenue sources.
  • Citadel Chief Operating Officer Gerald Beeson warned in an internal memo that Mamdani's actions threaten a $6 billion redevelopment project at 350 Park Avenue, noting Citadel employees have paid nearly $2.3 billion in state and local taxes.
  • Griffin, speaking at a conference in Oslo, criticized the mayor's approach as a "profound lack of judgment" and planned to meet with Hochul to discuss the state's fiscal direction and pro-business environment.
  • This confrontation occurs as New York City faces a prospective $10.4 billion budget gap in 2027, with observers warning that targeting major employers could jeopardize the city's economic future and long-term tax base.
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World Tribune: Window on the Real World broke the news on Monday, April 27, 2026.
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