EX-99.A 2 a13-5429_1ex99da.htm EXHIBIT A

Exhibit A

Transactions by Reporting Persons in the last 60 days not previously reported.

Beneficial Ownership		Purchase or Sale		Quantity		Transaction Date		Price per Share (including commission)			How Effected
California State Teachers’ Retirement System		Sale		1,226		1/28/2013		$	53.10		Open Market
California State Teachers’ Retirement System		Sale		3,019		1/29/2013		$	53.15		Open Market
California State Teachers’ Retirement System		Sale		1,541		1/30/2013		$	53.71		Open Market
California State Teachers’ Retirement System		Sale		3,347		1/31/2013		$	53.59		Open Market
California State Teachers’ Retirement System		Purchase		100		1/31/2013		$	53.61		Open Market
California State Teachers’ Retirement System		Sale		2,912		2/1/2013		$	54.12		Open Market
California State Teachers’ Retirement System		Sale		3,341		2/4/2013		$	54.31		Open Market
California State Teachers’ Retirement System		Sale		3,090		2/5/2013		$	54.82		Open Market
California State Teachers’ Retirement System		Purchase		800		2/7/2013		$	56.08		Open Market
California State Teachers’ Retirement System		Sale		800		2/7/2013		$	55.32		Open Market
California State Teachers’ Retirement System		Sale		800		2/7/2013		$	56.08		Open Market
California State Teachers’ Retirement System		Purchase		100		2/13/2013		$	56.21		Open Market