Tad Smith

Sotheby's replaces Tad Smith with Charles F. Stewart as chief executive

Smith leaves after four and a half years with a $28.2m severance deal, including $16.9m in shares, and will remain as a senior adviser to Stewart

Anny Shaw. with additional reporting by Anna Brady

Sotheby's ceases publicly trading on the New York Stock Exchange as its $3.7bn sale to Patrick Drahi closes

Chief financial officer Michael Goss is replaced by Jean-Luc Berrebi per the terms of the merger, which sees shareholders compensated $57 per share