Ken Griffin, founder of the hedge fund Citadel, paid upwards of $100 million for Jean-Michel Basquiat’s 1982 canvas Boy and Dog in a Johnnypump. The work was previously owned by Peter Brant, the media magnate and collector whose extensive Basquiat collection went on view last year at the Brant Foundation in New York City. News of the sale was first reported in art advisor Josh Baer’s newsletter, though the specific painting was identified by Bloomberg.