Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^{F1,F7,F9,F11,F12,F13}	Dec 16, 2016	S	9,060,043	$22.04	D	28,987,257	I	See Footnotes
Common Stock^{F2,F7,F9,F11,F12,F13}	Dec 16, 2016	S	2,072,133	$22.04	D	6,629,709	I	See Footnotes
Common Stock^{F3,F8,F9,F11,F12,F13}	Dec 16, 2016	S	129,765	$22.04	D	415,176	I	See Footnotes
Common Stock^{F4,F8,F9,F11,F12,F13}	Dec 16, 2016	S	27,544	$22.04	D	88,125	I	See Footnotes
Common Stock^{F5,F7,F9,F11,F12,F13}	Dec 16, 2016	S	403,982	$22.04	D	1,292,525	I	See Footnotes
Common Stock^{F6,F10,F11,F12,F13}	Dec 16, 2016	S	306,533	$22.04	D	980,739	I	See Footnotes

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1These securities are directly held by Blackstone Capital Partners V L.P.
F10The general partner of Blackstone Family Investment Partnership V-SMD L.P. is Blackstone Family GP L.L.C. Blackstone Family GP L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Mr. Schwarzman.
F11Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.
F12Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.
F13Due to the limitations of the electronic filing system, Blackstone Management Associates V L.L.C., Blackstone Capital Partners V L.P., BCP V-S L.P., Blackstone Family Investment Partnership V L.P., Blackstone Participation Partnership V L.P., BCP V Co-Investors L.P. and Blackstone Family Investment Partnership V-SMD L.P. have filed a separate Form 4.
F2These securities are directly held by BCP V-S L.P.
F3These securities are directly held by Blackstone Family Investment Partnership V L.P.
F4These securities are directly held by Blackstone Participation Partnership V L.P.
F5These securities are directly held by BCP V Co-Investors L.P.
F6These securities are directly held by Blackstone Family Investment Partnership V-SMD L.P. (Blackstone Family Investment Partnership V-SMD L.P., together with Blackstone Capital Partners V L.P., BCP V-S L.P., Blackstone Family Investment Partnership V L.P., Blackstone Participation Partnership V L.P. and BCP V Co-Investors L.P., the "Blackstone Funds").
F7The general partner of Blackstone Capital Partners V L.P., BCP V-S L.P. and BCP V Co-Investors L.P. is Blackstone Management Associates V L.L.C. BMA V L.L.C. is the sole member of Blackstone Management Associates V L.L.C.
F8The general partner of Blackstone Family Investment Partnership V L.P. and Blackstone Participation Partnership V L.P. is BCP V Side-by-Side GP L.L.C.
F9Blackstone Holdings III L.P. is the sole member of BCP V Side-by-Side GP L.L.C. and the managing member and majority in interest owner of BMA V L.L.C. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.