X0306 4 2018-11-28 0000823094 SOTHEBYS BID 0001601765 Smith, Jr. Thomas S. 1334 YORK AVE NEW YORK NY 10021 1 1 President and CEO Common Stock 2018-11-28 5 G 0 E 15250 0 D 119725 D Common Stock 2018-11-28 4 P 0 15250 40.9584 A 134975 D Common Stock 11130 I By wife as UTMA custodian for son Common Stock 5610 I By wife as UTMA custodian for daughter The Reporting Person made a charitable gift of 15,250 shares of Sotheby's common stock, and then purchased the same number of shares in the open market on the same day so as to retain his prior overall level of investment in the Company. The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions at prices ranging from $40.73 to $41.11, inclusive. If requested, the Reporting Person will supply the SEC, the Issuer or a security holder of the Issuer full details regarding the number of shares bought at each price. /s/ David G. Schwartz as Attorney-In-Fact 2018-11-29