Citadel CEO Ken Griffin doesn't approve of New York City Mayor Mamdani's pied-à-terre tax. See all the homes he owns around ...

During a CNN interview, New York City Mayor Zohran Mamdani admitted he hasn't heard back from Citadel CEO Ken Griffin as he ...

During a brief appearance on CNN Tuesday night, Mamdani reiterated his scathing response to the Amazon CEO’s complaint that ...

New York City's tax on second homes is now in effect after backlash from billionaires, including the Citadel CEO.

Ken Griffin’s Citadel weighs NYC expansion amid tax tensions with Mayor Zohran Mamdani, as debate over wealth taxes, jobs, and capital flight intensifies in NYC.

Billionaire investor Ken Griffin built Citadel Advisors into one of the most successful hedge funds in modern Wall Street history, generating billions in profits through a data-driven, multi-strategy ...

Hedge fund billionaire Ken Griffin was one of the most prominent AI skeptics. Now he's had a change of heart, calling it ...

Ken Griffin called Zohran Mamdani’s controversial social media post outside the Citadel founder’s swanky midtown penthouse “creepy weird” and ultimately “frightening” after watching the socialist NYC ...

Citadel CEO Ken Griffin at the Milken Institute Global Conference: "It's unquestionably true that we made the right choice. And now, and now what the mayor of New York has made clear to my partners ...

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

A billionaire has responded after Mayor Zohran Mamdani announced his plans to tax the rich — right in front of his luxury penthouse. In a social video from earlier this month, Mamdani unveiled the new ...

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