Citadel CEO Ken Griffin is lending his 'epic' $44.6 million Stegosaurus fossil to the American Museum of Natural History

Do we have any Griffin Brothers fans? This was from an event down in TX almost a year ago. Really cool guys, maybe I will post a few more from different events. #griffinbrothers #rollerskate #skaters | Skate Adventures

Citadel's Ken Griffin: Competition creates value for consumers

Ken Griffin - The Hammond Organ Collection

Morning coffee brewing. Headed out to help a couple buddies work on the carriage house roof today at the farm. As I was preparing I notice something red out of the corner of my eye. #petejive I will take it as a sign. A good sign. Perhaps the colors in the sky changes something about nature. After our encounter the bird flew off happily. | Jon Griffin

Ken Griffin - Ken Griffin At The Organ