Patrick Donegan, whose LinkedIn profile says he managed a team of 300 people around the world, was at OKX from August 2023 to January 2024.
Former CEO Jamie Leverton is succeeded by president Asher Genoot.
Shifke is the CFO of Silbert's Digital Currency Group and will take over Jan. 1, Grayscale said in an SEC filing.
Oliver Tonkin has replaced Oliver von Landsberg-Sadie at the crypto banking firm.