Billionaire Ken Griffin's clash with NYC Mayor Zohran Mamdani over wealth taxes mirrors the tensions that preceded Citadel's ...

The billionaire suggested that his firm’s expansion will focus on Miami after the New York City mayor criticized his $238 ...

The dispute was sparked after Mamdani posted a video outside Griffin’s $238 million Midtown penthouse, voicing support for a proposed "pied-à-terre" tax on high-value second homes.

Billionaire Ken Griffin says being New York City Mayor Zohran Mamdani's poster boy for a tax-the-rich campaign​ put his life ...

Citadel CEO Ken Griffin said Zohran Mamdani’s luxury-tax video may push the company to leave NYC for Miami, a move which ...

Griffin threatened to cancel his 350 Park Avenue project over NYC's pied-à-terre tax. Mayor Mamdani defended targeting ...

Former New York City Mayor Eric Adams is weighing in on the ongoing war of words between Mayor Zohran Mamdani and billionaire ...

New York City Mayor Zohran Mamdani stood outside a luxury skyscraper in Manhattan for a video on Tax Day to deliver on his ...

Billionaire Ken Griffin reaffirmed Citadel's move to Miami at the Milken Conference, citing his feud with NYC Mayor Zohran ...

NYC Mayor Zohran Mamdani faced scrutiny over a video he filmed outside Ken Griffin's home, with The Washington Post calling ...