Hedge fund billionaire Ken Griffin, founder and CEO of Citadel, has been revealed as the buyer of the record-setting "Apex" Stegosaurus skeleton at a Sotheby's auction yesterday. Griffin purchased the ...

Citadel founder Ken Griffin told the hedge fund's 300 incoming summer interns that investors who "go on defense" during market turmoil almost always lose money, and he advised them to park cash ...

Crypto firm Digital Asset raised $135 million in a funding round backed by Goldman Sachs, BNP Paribas and Ken Griffin's Citadel Securities. The company said it will use the funding to advance ...