Citadel CEO Ken Griffin criticized New York City Mayor Zohran Mamdani after Mamdani posted a Tax Day video where he pledged to impose a new \u201cpied-\u00e0-terre\u201d tax on wealthy residents\u2019 non-primary homes. Mamdani\u2019s video shows him standing outside Griffin\u2019s penthouse, which was reportedly bought for $238 million in 2019. <\/p>\n

Griffin responded at an investment conference in Oslo, saying he was upset by the \u201cpersonal attack\u201d and warned it could raise security concerns. He also argued that New York should focus on sound, pro-business governance rather than moving toward socialism, adding that he considered canceling a future Manhattan project due to higher-tax directions. <\/p>\n

The piece also notes that other social media users<\/a> reacted skeptically to Mamdani\u2019s plan earlier in April, with some commenting that taxing wealthy residents could drive away jobs and increase costs for others. <\/p>\n