Partners are leaving Optiver as well, and the prime suspects in the ongoing CFTC case in hammering the oil price two years ago don’t appear to be really working. Hence, Bastiaan van Kempen, Christopher Dowson and Randal Meijer could be excellent candidates for the role as CFO. As earlier noted in the comments, spokesman and legal counsel Steven Schwab has jumped ship and joined arch rival Tibra Trading. One may slightly remember another trading firm which often fired key board members.
Unfortunately the legal battles seem to take ages. No news to report yet on the CFTC or F1 case.