We did the math on Ken Griffin's pied-à-terre tax bill

Tech Insider : Economy, Politics, Economy
Ken Griffin; Zohran Mamdani
Ken Griffin has found himself at the center of Zohran Mamdani's campaign to tax the rich.

Fabrice COFFRINI / AFP via Getty Images; Lev Radin/Pacific Press/LightRocket via Getty Images

Ken Griffin's $238 million New York City penthouse isn't the only pied-à-terre he owns. See what else is in his portfolio.

Tech Insider : Business
Ken Griffin speaks at The Cambridge Union.
Citadel CEO Ken Griffin has a real estate portfolio totaling over $1 billion.

Nordin Catic/Getty Images for The Cambridge Union

Citadel CEO Ken Griffin was a prominent AI skeptic. Now he says, 'AI is real.'

Tech Insider : Business, Technology
Ken Griffin
Once one of the most prominent AI skeptics, Citadel CEO Ken Griffin has had a change of heart.

Patrick T. Fallon / AFP via Getty Images

Jamie Dimon just joined Ken Griffin in warning that taxes could curb expansion plans

Tech Insider : Business, Economy, Politics
Ken Griffin and Jamie Dimon
Ken Griffin and Jamie Dimon have said they might reconsider building projects.

Getty Images

Billionaire Ken Griffin: Zohran Mamdani's tax-the-rich video outside my apartment was 'creepy and weird'

Tech Insider : Business, Politics, Technology
Ken Griffin speaks in a black suit
Ken Griffin is one of the biggest donors to the Republican Party.

Bloomberg/Getty Images

Ken Griffin's deputy calls Zohran Mamdani's targeting of the billionaire 'shameful' in a companywide memo

Tech Insider : Business, Politics
Ken Griffin speaks on stage in a black suit
Billionaire Ken Griffin is one of the biggest donors to the Republican Party.

Fabrice COFFRINI / AFP via Getty Images

Penthouse pieds-à-terre: Bezos, Trump, and other billionaires facing Mamdani's proposed tax

Tech Insider : Politics, Economy, Economy
Bezos, Mamdani
Jeff Bezos would be among the many billionaires impacted by a proposed pied-à-terre tax backed by Mayor Zohran Mamdani.

Jamie McCarthy/WireImage; Adam Gray/Bloomberg via Getty Images

Some hedge funds are expanding in Miami — but its share of prized portfolio managers has fallen

Tech Insider : Business
Miami brickell skyline
Miami has been working to become a magnet for Wall Street and tech companies.

MikeDot/Getty Images

Hedge funds' Q1 scoreboard: See what big names slid and who held their ground in March's market shakeout

Tech Insider : Business, Environment, Style
Balyasny Griffin Englander
Hedge fund founders Dmitry Balyasny, Ken Griffin, and Izzy Englander.

Balyasny; Krisztian Bocsi/Bloomberg via Getty Images;Phil McCarten/Reuters

Millennium hires one of Citadel's longtime stockpickers

Tech Insider : Business
Izzy Englander speaks at an event.
Izzy Englander's Millennium has launched two internship schemes to build out the firm's pipeline.

Phil McCarten/Reuters

Subscribe to ken-griffin