Key Takeaways
- • Citadel CEO Ken Griffin called NYC Mayor Zohran Mamdani's "tax-the-rich" video "creepy and weird," citing safety concerns and describing it as a personal attack that "put me in harm's way."
- • Griffin has threatened to reconsider or walk away from a $6 billion skyline project at 350 Park Avenue in response to Mamdani's pied-à-terre tax proposal targeting luxury properties worth over $5 million whose owners are non-residents.
- • The dispute centers on Mamdani's April 15 video featuring Griffin's $238 million Manhattan penthouse (purchased in 2019, the most expensive U.S. residential sale on record), which the Mayor used to announce the new luxury property tax.
- • Griffin has doubled down on his 2023 relocation decision from Chicago to Miami, stating that Mamdani's actions have "made it very clear—New York does not welcome success."
- • The tax policy threatens to have broader collateral consequences, including impacts on NYC street food vendors and other small business operators dependent on economic activity in the city.
Summary
Billionaire Citadel founder and CEO Ken Griffin launched a public rebuke of New York City Mayor Zohran Mamdani's "tax-the-rich" campaign following the Mayor's April 15 video announcement of a new pied-à-terre tax on luxury properties. Speaking at the Milken Conference in Los Angeles on May 5, Griffin characterized Mamdani's video—filmed outside his 24,000-square-foot Manhattan penthouse that he purchased for $238 million in 2019—as "creepy and weird," describing the experience as "frightening" and claiming it endangered his personal safety by putting him "in harm's way."
The dispute stems from Mamdani's policy proposal to impose an annual fee on luxury residential properties valued above $5 million whose owners do not reside full-time in New York City. In the promotional video, Mamdani specifically referenced Griffin's penthouse, stating: "This is an annual fee on luxury properties worth more than $5 million whose owners do not live full-time in the city—like this penthouse, which hedge fund CEO Ken Griffin bought for $238 million." Griffin's response underscores a broader tension between New York's tax policy objectives and the city's ability to retain high-net-worth individuals and their associated business operations.
Following Mamdani's video, Citadel's Chief Operating Officer Gerald Beeson signaled that the firm would reconsider its substantial commitment to a $6 billion development project at 350 Park Avenue, suggesting that the proposed taxation and public targeting constitute material factors in the company's real estate investment decision-making. Griffin framed the Mayor's actions as validation of his 2023 decision to relocate Citadel's headquarters from Chicago to Miami, stating that "Mamdani has made it very clear—New York does not welcome success." This threatens not only Citadel's real estate project but also sets a precedent for other wealth creators considering remaining in or relocating to New York City.
The escalating conflict carries second-order economic implications. The reduction in major commercial and residential development activity, should Citadel follow through on its threat to abandon the 350 Park Avenue project, would cascade through local supply chains and employment sectors, including impacts on street food vendors and other small-business operators dependent on foot traffic and economic vitality in Midtown Manhattan.
The dispute stems from Mamdani's policy proposal to impose an annual fee on luxury residential properties valued above $5 million whose owners do not reside full-time in New York City. In the promotional video, Mamdani specifically referenced Griffin's penthouse, stating: "This is an annual fee on luxury properties worth more than $5 million whose owners do not live full-time in the city—like this penthouse, which hedge fund CEO Ken Griffin bought for $238 million." Griffin's response underscores a broader tension between New York's tax policy objectives and the city's ability to retain high-net-worth individuals and their associated business operations.
Following Mamdani's video, Citadel's Chief Operating Officer Gerald Beeson signaled that the firm would reconsider its substantial commitment to a $6 billion development project at 350 Park Avenue, suggesting that the proposed taxation and public targeting constitute material factors in the company's real estate investment decision-making. Griffin framed the Mayor's actions as validation of his 2023 decision to relocate Citadel's headquarters from Chicago to Miami, stating that "Mamdani has made it very clear—New York does not welcome success." This threatens not only Citadel's real estate project but also sets a precedent for other wealth creators considering remaining in or relocating to New York City.
The escalating conflict carries second-order economic implications. The reduction in major commercial and residential development activity, should Citadel follow through on its threat to abandon the 350 Park Avenue project, would cascade through local supply chains and employment sectors, including impacts on street food vendors and other small-business operators dependent on foot traffic and economic vitality in Midtown Manhattan.
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