Citadel’s Ken Griffin is forging ahead with his new Park Avenue office tower, filing plans with the city as the developers ...

Billionaire investor Ken Griffin's flagship hedge fund climbed in a volatile January, according to a person familiar with the ...

Meet the plugged-in players whom billionaire Ken Griffin is relying on to get Citadel’s new headquarters off the ground ...

Semafor's signature live journalism event, the 2025 World Economy Summit, will bring together over 200 top CEOs, making it the largest gathering of Fortune 500 leaders hosted in the United States. The ...

Ken Griffin is bringing in the heavy guns, partnering with Related Companies to co-develop Citadel’s new $1 billion-plus ...

Billionaire hedge fund founder Ken Griffin has broken records for some of his purchases — from previously buying the most expensive property in Miami history to acquiring a stegosaurus skeleton ...

Griffin’s $500,000 donation to Levine Cava, a Democrat, in her race against a field of mostly Republican challengers drew national attention in June because of his standing as a top GOP donor ...

Ken Griffin is partnering with Related Cos. to help develop the massive new Miami headquarters to house his Citadel ...

Citadel, the hedge fund founded by Ken Griffin, is looking at selling investment-grade bonds soon after a separate $1 billion sale last month.