X0306 4 2016-06-14 0000823094 SOTHEBYS BID 0001213399 GOSS MICHAEL F 1334 YORK AVE NEW YORK NY 10021 1 EVP, Chief Financial Officer Common Stock 2016-06-14 5 L 0 E 89 28.6167 A 50089 D Common Stock 2017-03-09 4 S 0 89 46.4144 D 50000 D The Reporting Person was recently informed that shares of the Issuer were purchased on the Reporting Person's behalf in a broker's discretionary stock fund that is part of the Reporting Person's Individual Retirement Account. At the same time, the Reporting Person was informed that such shares were subsequently sold. /s/ Jonathan Olsoff as Attorney-In-Fact 2017-03-17