EXHIBIT 21 SUBSIDIARIES OF SOTHEBY'S HOLDINGS, INC. The significant subsidiaries of Sotheby's Holdings, Inc. which are wholly owned except where indicated, are as follows: JURISDICTION OF INCORPORATION ---------------- Sotheby's Holdings, Inc. Michigan Sotheby's Financial Services, Inc. Nevada SPTC, Inc Nevada SFS Holdings, Inc. Delaware Fine Art Insurance Ltd. Bermuda Sotheby's, Inc. New York Oatshare Limited United Kingdom Sotheby's United Kingdom