Key Takeaways
- • Ken Griffin's Citadel will maintain its 60% ownership stake and 1-million-square-foot anchor tenant commitment at 350 Park Avenue, a $4.5 billion Manhattan office development, according to Vornado CEO Steven Roth's August 2026 earnings call disclosure.
- • Vornado Realty Trust will exercise its investment option to increase ownership to 36% in the project, preserving the three-way partnership structure announced in February 2026 despite months of public conflict between Griffin and New York City Mayor Zohran Mamdani.
- • The resolution signals that Griffin's May threats to redirect Citadel's expansion efforts to Florida rather than New York were negotiating posture rather than irreversible strategic pivot, despite legitimate business friction over the mayor's pied-à-terre tax initiative.
- • Mamdani's viral video campaign highlighting Griffin's $238 million penthouse at 220 Central Park South to promote the ultra-wealthy tax proposal triggered heated public backlash from Vornado leadership and Griffin, but did not ultimately derail the major commercial real estate commitment.
Summary
Ken Griffin's Citadel is proceeding with its commitment to 350 Park Avenue, Manhattan's 62-story supertall office tower, ending months of uncertainty about whether the billionaire hedge fund manager would withdraw from the $4.5 billion project following a high-profile dispute with New York City Mayor Zohran Mamdani.
Vornado Realty Trust CEO Steven Roth confirmed the continuity of the partnership structure during the company's second-quarter 2026 earnings call on Tuesday, August 4. Roth stated that Vornado "intends to shortly exercise our investment option to participate in this deal at our maximum ownership percentage of 36 percent, alongside Ken Griffin as our 60 percent partner and Citadel as our 1-million-square-foot anchor tenant." This reaffirms the equity and operational commitments Griffin announced in February, before the political friction emerged.
The conflict originated in May when Mayor Mamdani released a viral video showcasing Griffin's $238 million penthouse at 220 Central Park South as the centerpiece of a campaign promoting a proposed pied-à-terre tax targeting ultra-wealthy non-residents. Albany subsequently passed the legislation. Griffin and Roth responded publicly and forcefully, with Roth dedicating six minutes of Vornado's prior earnings call to criticize the mayor's approach as "irresponsible and dangerous." Griffin countered by signaling that Citadel would explore expanded investment and job creation in Florida—a state with no income tax—rather than deepen its New York footprint.
Despite the apparent rupture and Griffin's public statements about reconsidering his New York strategy, the commitment has held. The resolution reflects a distinction between political theater and binding commercial obligation; while the dispute exposed genuine friction over tax policy and business climate, the underlying economics and strategic rationale for the 350 Park development remained intact for all parties.
Vornado Realty Trust CEO Steven Roth confirmed the continuity of the partnership structure during the company's second-quarter 2026 earnings call on Tuesday, August 4. Roth stated that Vornado "intends to shortly exercise our investment option to participate in this deal at our maximum ownership percentage of 36 percent, alongside Ken Griffin as our 60 percent partner and Citadel as our 1-million-square-foot anchor tenant." This reaffirms the equity and operational commitments Griffin announced in February, before the political friction emerged.
The conflict originated in May when Mayor Mamdani released a viral video showcasing Griffin's $238 million penthouse at 220 Central Park South as the centerpiece of a campaign promoting a proposed pied-à-terre tax targeting ultra-wealthy non-residents. Albany subsequently passed the legislation. Griffin and Roth responded publicly and forcefully, with Roth dedicating six minutes of Vornado's prior earnings call to criticize the mayor's approach as "irresponsible and dangerous." Griffin countered by signaling that Citadel would explore expanded investment and job creation in Florida—a state with no income tax—rather than deepen its New York footprint.
Despite the apparent rupture and Griffin's public statements about reconsidering his New York strategy, the commitment has held. The resolution reflects a distinction between political theater and binding commercial obligation; while the dispute exposed genuine friction over tax policy and business climate, the underlying economics and strategic rationale for the 350 Park development remained intact for all parties.
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