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

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

'NYC is cooked': Business leaders and Wall Streeters erupt over proposed luxury second-home tax

Tech Insider : Economy, Politics, Business
Zohran Mamdani grins toward the camera, flanked by photographers.
Mayor Zohran Mamdani has backed a proposal by Gov. Kathy Hochul to tax second homes in New York City valued at over $5 million.

Caean Couto/Getty Images

Miami heat: Phones are ringing off the hook as California billionaires look to drop 9 figures on homes in the 305

Tech Insider : Business, Crypto, Economy
Mark Zuckerberg, Larry page, Sergey brin with a Miami backdrop
Google cofounder Larry Page purchased two properties in Miami for $170 million. Mark Zuckerberg and Sergey Brin may be next.

Jeff Bottari/Getty; Jeff Chiu/AP, Christopher Polk/Getty; Getty Images; Tyler Le/BI

Google cofounders Sergey Brin and Larry Page moved an LLC out of California ahead of proposed billionaire's tax

Tech Insider : Business
Sergey Brin and Larry Page dressed in tuxedos at a party
Google cofounded Sergey Brin and Larry Page attended the Vanity Fair Oscar Party in 2007.

Billy Farrell/Patrick McMullan via Getty Images

Reid Hoffman calls California's proposed billionaire tax 'horrendous' for innovation

Tech Insider : Politics, Business
Reid Hoffman, the cofounder of LinkedIn, thinks AI will transform, not eliminate, jobs.
Reid Hoffman, the cofounder of LinkedIn, thinks AI will transform, not eliminate, jobs.

Dominik Bindl/Getty Images

David Sacks sees 2 cities replacing NYC and SF as finance and tech capitals

Tech Insider : Business, Crypto
White House AI and crypto czar David Sacks speaks with President Donald Trump.
White House AI and crypto czar David O. Sacks speaks with President Donald J Trump before he signs an executive order about pediatric cancer research and artificial intelligence, in the Oval Office at the White House on Tuesday, Sept 30, 2025 in Washington, DC.

Jabin Botsford/The Washington Post via Getty Images

Read the letter celebrity lawyer Alex Spiro wrote to Gavin Newsom, warning that his clients will 'permanently relocate' if California wealth tax passes

Tech Insider : Politics, Business, Economy
Alex Spiro and Gavin Newsom
Attorney Alex Spiro wrote to California Gov. Gavin Newsom saying several of his clients would relocate if a billionaire tax were implemented.

Ramsay de Give-Pool/Getty Images; Michael M. Santiago/Getty Images

America's economy should be 'thrilled' billionaires like Jeff Bezos and Warren Buffett exist, think-tank director says

Tech Insider : Economy
jeff bezos amazon
Jeff Bezos.

David Ryder/Getty

Subscribe to billionaire-tax