David Steyn was appointed co-chief executive at the London office of...

David Steyn was appointed co-chief executive at the London office of Sanford C. Bernstein. He will work with fellow co-chief executive Sharon Fay, who is due to transfer to London from New York. Previously, Mr. Steyn managed hedge funds at Quaestor Investment Management. The London office will be fully operational early next year and will have investment management capability in addition to the client servicing operations it now provides.