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Hedge fund founder hits back at Mamdani's 'creepy' wealth tax video

Griffin said the video put him in harm’s way and called the tax proposal discriminatory after Mamdani used his penthouse as an example.

  • On Tuesday at the Milken Institute Global Conference in Beverly Hills, California, Citadel CEO Ken Griffin called Mayor Zohran Mamdani's tax promotional video "creepy and weird."
  • The pied-à-terre tax targets residential properties valued above $5 million where owners maintain primary residences outside New York City, aiming to generate about $500 million annually for the city's budget.
  • Griffin warned the video posed security risks, citing the fatal shooting of UnitedHealthcare CEO Brian Thompson blocks from his residence and calling the mayor's actions "frightening."
  • Mamdani's press secretary Joe Calvello responded that the mayor wants all New Yorkers to succeed, insisting the current tax system remains "fundamentally broken" and requires meaningful reform.
  • Griffin, whose firm paid $2.3 billion in taxes over five years, said he would "double down" on Miami expansion, while plans for a massive Midtown Manhattan redevelopment remain uncertain.
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Bloomberg broke the news in United States on Tuesday, May 5, 2026.
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