X0203 3 2010-08-17 0 0001468174 Hyatt Hotels Corp H 0001499380 ECI Trust A 2010 C/O LEWIS M. LINN, TRUSTEE 3555 TIMMONS LANE, SUITE 800 HOUSTON TX 77027 0 0 0 1 See Remarks Class B Common Stock 0.00 Class A Common Stock 61137 D As provided in the Issuer's Amended and Restated Certificate of Incorporation, each share of Class B Common Stock is convertible at any time, at the option of the holder, into one share of Class A Common Stock. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Represents shares allocated by the co-trustees of a Pritzker Family U.S. Situs Trust or distributed from a Pritzker Family U.S. Situs Trust. No consideration was paid in connection with such allocation or distribution. Such allocation or distribution of shares of Class B Common Stock to the Reporting Person constitutes a "permitted transfer" as defined under the Issuer's Amended and Restated Certificate of Incorporation. Contemporaneous with such allocation or distribution, Lewis M. Linn, solely in his capacity as trustee of the Reporting Person, has executed a joinder to, and thereby has become subject to the provisions of, the Amended and Restated Global Hyatt Agreement. Accordingly, immediately following the allocation, the shares will remain shares of Class B Common Stock. Member of 10% owner group. Lewis M. Linn serves as trustee of the Reporting Person and has investment power over the shares beneficially owned by the Reporting Person. The beneficiary does not have investment power over the shares of Class B Common Stock held by the Reporting Person. In addition, the Reporting Person may be deemed to be a member of a group because the Reporting Person has agreed to certain voting agreements and limitations on transfers of shares of Class A Common Stock and Class B Common Stock. The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein. /s/ Lewis M. Linn, solely in his capacity as trustee of ECI Trust A 2010 2010-08-23