Molly O’Shea
@MollySOShea
If Ken Griffin leaves NYC because of Mamdani’s Pied-à-Terre Tax stunt, the economic fallout could be enormous.
It’s not just “one billionaire moving.”
Ken’s 350 Park Ave project + Citadel’s employment amounts to:
→ ~2,500 Citadel employees currently in NYC
→ Citadel employees/principals paid ~$2.3B in NY state + city taxes over the last 5 years
→ Ken Griffin has directed ~$650M in charitable giving to NYC causes
→ $6B+ in development spending
→ 6,000 construction jobs
→ 15,000+ permanent jobs
→ One of the largest new office towers in Manhattan
In total, the long-term economic value tied to Citadel’s NYC footprint is likely measured in the tens of billions of dollars.
NYC’s entire financial ecosystem is built around a tiny number of ultra-productive firms and taxpayers.
If Ken Griffin leaves NYC because of Mamdani's Pied-à-Terre Tax stunt, the economic fallout could be enormous.
It’s not just “one billionaire moving.”
Ken's 350 Park Ave project + Citadel's employment amounts to:
→ ~2,500 Citadel employees currently in NYC
→ Citadel… https://t.co/i0wahLp1gm pic.twitter.com/WNXCiUOOWW— Molly O’Shea (@MollySOShea) May 23, 2026
Factcheck: **Yes, largely accurate based on Citadel’s own statements and reporting.**
The $2.3B in NY taxes over 5 years, $6B+ 350 Park Ave redevelopment (6,000 construction jobs + 15k+ permanent jobs), and Griffin’s ~$650M in NYC philanthropy all match what Citadel’s COO cited in internal memos and public responses to Mayor Mamdani’s pied-à-terre tax video (filmed outside Griffin’s $238M penthouse).
Griffin has confirmed he’s doubling down on Miami expansion and threatened to reconsider the NYC tower in response. Whether he fully pulls out is still in flux—some analysts expect the project to proceed—but the economic stakes tied to Citadel’s NYC footprint are real.
"Do you want to live in Dubai to save 10% tax?
That’s a personal question.
If you have billions of dollars, 10% is $100Ms, right?"
— Molly O’Shea (@MollySOShea) May 23, 2026
Lol trust me (and this is not a partisan opinion) billionaires will always pay a premium to live in the most relevant and consequential parts of the world
— the Pestiferous Vc (@bizofshowbiz) May 23, 2026
He is delusional. He thinks he can fix the mess created by socialism with more socialism. 😱
— Xi Van Fleet (@XVanFleet) May 24, 2026
Is this socialist wealth tax bullshit finally proving that eat the rich policies always end with the rich eating somewhere else and the poor getting stuck with the bill?