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
Relational Investors, L.P.	Sale	1,966	8/14/2012	$	127.65	Open Market
Relational Investors LLC	Sale	871	8/14/2012	$	127.65	Open Market
Relational Investors LLC	Sale	1,957	8/14/2012	$	127.65	Open Market
Relational Coast Partners, L.P.	Sale	497	8/14/2012	$	127.65	Open Market
Relational Coast Partners, L.P.	Sale	1	8/14/2012	$	127.64	Open Market
Relational Coast Partners, L.P.	Sale	22	8/14/2012	$	127.65	Open Market
Relational Fund Partners, L.P.	Sale	34	8/14/2012	$	127.65	Open Market
RH Fund I, L.P.	Sale	1,112	8/14/2012	$	127.65	Open Market
RH Fund 6, L.P.	Sale	777	8/14/2012	$	127.65	Open Market
Relational Investors XV, L.P.	Sale	355	8/14/2012	$	127.65	Open Market
Relational Investors XVI, L.P.	Sale	278	8/14/2012	$	127.65	Open Market
Relational Investors XX, L.P.	Sale	299	8/14/2012	$	127.65	Open Market
Relational Investors XXIII, L.P.	Sale	423	8/14/2012	$	127.65	Open Market
Relational Investors VIII, L.P.	Sale	2,849	8/14/2012	$	127.65	Open Market
Relational Investors IX, L.P.	Sale	689	8/14/2012	$	127.65	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	750	8/14/2012	$	127.65	Open Market
Relational Investors LLC	Sale	1,320	8/14/2012	$	127.65	Open Market
Relational Investors, L.P.	Sale	4,185	8/15/2012	$	127.25	Open Market
Relational Investors, L.P.	Sale	4,910	8/15/2012	$	127.25	Open Market
Relational Investors LLC	Sale	4,030	8/15/2012	$	127.25	Open Market
Relational Investors LLC	Sale	4,518	8/15/2012	$	127.25	Open Market
Relational Investors LLC	Sale	4,536	8/15/2012	$	127.25	Open Market
Relational Coast Partners, L.P.	Sale	2,299	8/15/2012	$	127.25	Open Market
Relational Coast Partners, L.P.	Sale	7	8/15/2012	$	127.25	Open Market
Relational Coast Partners, L.P.	Sale	71	8/15/2012	$	127.25	Open Market
Relational Coast Partners, L.P.	Sale	34	8/15/2012	$	127.25	Open Market
Relational Fund Partners, L.P.	Sale	75	8/15/2012	$	127.25	Open Market
Relational Fund Partners, L.P.	Sale	88	8/15/2012	$	127.25	Open Market
RH Fund I, L.P.	Sale	2,666	8/15/2012	$	127.25	Open Market
RH Fund I, L.P.	Sale	2,479	8/15/2012	$	127.25	Open Market
RH Fund 6, L.P.	Sale	1,796	8/15/2012	$	127.25	Open Market
RH Fund 6, L.P.	Sale	1,801	8/15/2012	$	127.25	Open Market
Relational Investors XV, L.P.	Sale	835	8/15/2012	$	127.25	Open Market
Relational Investors XV, L.P.	Sale	807	8/15/2012	$	127.25	Open Market
Relational Investors XVI, L.P.	Sale	629	8/15/2012	$	127.25	Open Market
Relational Investors XVI, L.P.	Sale	659	8/15/2012	$	127.25	Open Market
Relational Investors XX, L.P.	Sale	705	8/15/2012	$	127.25	Open Market
Relational Investors XX, L.P.	Sale	681	8/15/2012	$	127.25	Open Market
Relational Investors XXIII, L.P.	Sale	1,003	8/15/2012	$	127.25	Open Market
Relational Investors XXIII, L.P.	Sale	958	8/15/2012	$	127.25	Open Market
Relational Investors VIII, L.P.	Sale	6,441	8/15/2012	$	127.25	Open Market

Relational Investors VIII, L.P.	Sale	6,697	8/15/2012	$	127.25	Open Market
Relational Investors IX, L.P.	Sale	1,249	8/15/2012	$	127.25	Open Market
Relational Investors IX, L.P.	Sale	831	8/15/2012	$	127.25	Open Market
Relational Investors IX, L.P.	Sale	1,107	8/15/2012	$	127.25	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,500	8/15/2012	$	127.25	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,972	8/15/2012	$	127.25	Open Market
Relational Investors LLC	Sale	6,108	8/15/2012	$	127.25	Open Market
Relational Investors, L.P.	Sale	4,993	8/16/2012	$	129.09	Open Market
Relational Investors, L.P.	Sale	1,848	8/16/2012	$	129.09	Open Market
Relational Investors, L.P.	Sale	1,731	8/16/2012	$	128.03	Open Market
Relational Investors LLC	Sale	3,031	8/16/2012	$	129.09	Open Market
Relational Investors LLC	Sale	767	8/16/2012	$	128.03	Open Market
Relational Investors LLC	Sale	5,888	8/16/2012	$	129.09	Open Market
Relational Investors LLC	Sale	922	8/16/2012	$	129.09	Open Market
Relational Investors LLC	Sale	1,723	8/16/2012	$	128.03	Open Market
Relational Coast Partners, L.P.	Sale	1,129	8/16/2012	$	129.09	Open Market
Relational Coast Partners, L.P.	Sale	600	8/16/2012	$	129.09	Open Market
Relational Coast Partners, L.P.	Sale	437	8/16/2012	$	128.03	Open Market
Relational Coast Partners, L.P.	Sale	5	8/16/2012	$	129.08	Open Market
Relational Coast Partners, L.P.	Sale	1	8/16/2012	$	128.02	Open Market
Relational Coast Partners, L.P.	Sale	79	8/16/2012	$	129.08	Open Market
Relational Coast Partners, L.P.	Sale	20	8/16/2012	$	128.03	Open Market
Relational Fund Partners, L.P.	Sale	88	8/16/2012	$	129.08	Open Market
Relational Fund Partners, L.P.	Sale	33	8/16/2012	$	129.08	Open Market
Relational Fund Partners, L.P.	Sale	29	8/16/2012	$	128.03	Open Market
RH Fund I, L.P.	Sale	3,604	8/16/2012	$	129.09	Open Market
RH Fund I, L.P.	Sale	266	8/16/2012	$	129.09	Open Market
RH Fund I, L.P.	Sale	979	8/16/2012	$	128.03	Open Market
RH Fund 6, L.P.	Sale	2,341	8/16/2012	$	129.09	Open Market
RH Fund 6, L.P.	Sale	364	8/16/2012	$	129.09	Open Market
RH Fund 6, L.P.	Sale	684	8/16/2012	$	128.03	Open Market
Relational Investors XV, L.P.	Sale	1,110	8/16/2012	$	129.09	Open Market
Relational Investors XV, L.P.	Sale	125	8/16/2012	$	129.09	Open Market
Relational Investors XV, L.P.	Sale	312	8/16/2012	$	128.03	Open Market
Relational Investors XVI, L.P.	Sale	801	8/16/2012	$	129.09	Open Market
Relational Investors XVI, L.P.	Sale	168	8/16/2012	$	129.09	Open Market
Relational Investors XVI, L.P.	Sale	245	8/16/2012	$	128.03	Open Market
Relational Investors XX, L.P.	Sale	935	8/16/2012	$	129.08	Open Market
Relational Investors XX, L.P.	Sale	107	8/16/2012	$	129.09	Open Market
Relational Investors XX, L.P.	Sale	263	8/16/2012	$	128.03	Open Market
Relational Investors XXIII, L.P.	Sale	1,337	8/16/2012	$	129.09	Open Market
Relational Investors XXIII, L.P.	Sale	138	8/16/2012	$	129.09	Open Market
Relational Investors XXIII, L.P.	Sale	373	8/16/2012	$	128.03	Open Market
Relational Investors VIII, L.P.	Sale	8,253	8/16/2012	$	129.09	Open Market
Relational Investors VIII, L.P.	Sale	1,630	8/16/2012	$	129.09	Open Market
Relational Investors VIII, L.P.	Sale	2,508	8/16/2012	$	128.03	Open Market
Relational Investors IX, L.P.	Sale	2,013	8/16/2012	$	129.09	Open Market

Relational Investors IX, L.P.	Sale	385	8/16/2012	$	129.09	Open Market
Relational Investors IX, L.P.	Sale	424	8/16/2012	$	128.03	Open Market
Relational Investors IX, L.P.	Sale	182	8/16/2012	$	128.03	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,650	8/16/2012	$	129.09	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	962	8/16/2012	$	129.09	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	660	8/16/2012	$	128.03	Open Market
Relational Investors LLC	Sale	4,595	8/16/2012	$	129.09	Open Market
Relational Investors LLC	Sale	1,162	8/16/2012	$	128.03	Open Market
Relational Investors, L.P.	Sale	3,570	8/17/2012	$	128.70	Open Market
Relational Investors, L.P.	Sale	5,704	8/17/2012	$	128.70	Open Market
Relational Investors LLC	Sale	4,109	8/17/2012	$	128.70	Open Market
Relational Investors LLC	Sale	4,880	8/17/2012	$	128.70	Open Market
Relational Investors LLC	Sale	4,352	8/17/2012	$	128.70	Open Market
Relational Coast Partners, L.P.	Sale	2,345	8/17/2012	$	128.70	Open Market
Relational Coast Partners, L.P.	Sale	7	8/17/2012	$	128.70	Open Market
Relational Coast Partners, L.P.	Sale	17	8/17/2012	$	128.70	Open Market
Relational Coast Partners, L.P.	Sale	91	8/17/2012	$	128.70	Open Market
Relational Fund Partners, L.P.	Sale	64	8/17/2012	$	128.70	Open Market
Relational Fund Partners, L.P.	Sale	103	8/17/2012	$	128.70	Open Market
RH Fund I, L.P.	Sale	3,146	8/17/2012	$	128.70	Open Market
RH Fund I, L.P.	Sale	2,101	8/17/2012	$	128.70	Open Market
RH Fund 6, L.P.	Sale	1,942	8/17/2012	$	128.70	Open Market
RH Fund 6, L.P.	Sale	1,726	8/17/2012	$	128.70	Open Market
Relational Investors XV, L.P.	Sale	947	8/17/2012	$	128.70	Open Market
Relational Investors XV, L.P.	Sale	728	8/17/2012	$	128.70	Open Market
Relational Investors XVI, L.P.	Sale	641	8/17/2012	$	128.70	Open Market
Relational Investors XVI, L.P.	Sale	673	8/17/2012	$	128.70	Open Market
Relational Investors XX, L.P.	Sale	796	8/17/2012	$	128.70	Open Market
Relational Investors XX, L.P.	Sale	617	8/17/2012	$	128.70	Open Market
Relational Investors XXIII, L.P.	Sale	1,146	8/17/2012	$	128.70	Open Market
Relational Investors XXIII, L.P.	Sale	853	8/17/2012	$	128.70	Open Market
Relational Investors VIII, L.P.	Sale	6,655	8/17/2012	$	128.70	Open Market
Relational Investors VIII, L.P.	Sale	6,735	8/17/2012	$	128.70	Open Market
Relational Investors IX, L.P.	Sale	346	8/17/2012	$	128.70	Open Market
Relational Investors IX, L.P.	Sale	2,253	8/17/2012	$	128.70	Open Market
Relational Investors IX, L.P.	Sale	651	8/17/2012	$	128.70	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	993	8/17/2012	$	128.70	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,548	8/17/2012	$	128.70	Open Market
Relational Investors LLC	Sale	6,229	8/17/2012	$	128.70	Open Market
Relational Investors, L.P.	Sale	4,044	8/20/2012	$	127.93	Open Market
Relational Investors, L.P.	Sale	2,880	8/20/2012	$	127.93	Open Market
Relational Investors, L.P.	Sale	2,576	8/20/2012	$	128.00	Open Market
Relational Investors, L.P.	Sale	1,578	8/20/2012	$	128.00	Open Market
Relational Investors LLC	Sale	3,068	8/20/2012	$	127.93	Open Market
Relational Investors LLC	Sale	1,841	8/20/2012	$	128.00	Open Market
Relational Investors LLC	Sale	5,909	8/20/2012	$	127.93	Open Market
Relational Investors LLC	Sale	983	8/20/2012	$	127.93	Open Market

Relational Investors LLC	Sale	4,135	8/20/2012	$	128.00	Open Market
Relational Coast Partners, L.P.	Sale	1,751	8/20/2012	$	127.93	Open Market
Relational Coast Partners, L.P.	Sale	1,050	8/20/2012	$	128.00	Open Market
Relational Coast Partners, L.P.	Sale	5	8/20/2012	$	127.92	Open Market
Relational Coast Partners, L.P.	Sale	3	8/20/2012	$	128.00	Open Market
Relational Coast Partners, L.P.	Sale	18	8/20/2012	$	127.93	Open Market
Relational Coast Partners, L.P.	Sale	62	8/20/2012	$	127.93	Open Market
Relational Coast Partners, L.P.	Sale	48	8/20/2012	$	128.00	Open Market
Relational Fund Partners, L.P.	Sale	71	8/20/2012	$	127.93	Open Market
Relational Fund Partners, L.P.	Sale	53	8/20/2012	$	127.93	Open Market
Relational Fund Partners, L.P.	Sale	44	8/20/2012	$	128.00	Open Market
Relational Fund Partners, L.P.	Sale	31	8/20/2012	$	128.00	Open Market
RH Fund I, L.P.	Sale	3,887	8/20/2012	$	127.93	Open Market
RH Fund I, L.P.	Sale	30	8/20/2012	$	127.93	Open Market
RH Fund I, L.P.	Sale	2,350	8/20/2012	$	128.00	Open Market
RH Fund 6, L.P.	Sale	2,352	8/20/2012	$	127.93	Open Market
RH Fund 6, L.P.	Sale	387	8/20/2012	$	127.93	Open Market
RH Fund 6, L.P.	Sale	1,643	8/20/2012	$	128.00	Open Market
Relational Investors XV, L.P.	Sale	1,159	8/20/2012	$	127.93	Open Market
Relational Investors XV, L.P.	Sale	91	8/20/2012	$	127.93	Open Market
Relational Investors XV, L.P.	Sale	750	8/20/2012	$	128.00	Open Market
Relational Investors XVI, L.P.	Sale	765	8/20/2012	$	127.93	Open Market
Relational Investors XVI, L.P.	Sale	216	8/20/2012	$	127.93	Open Market
Relational Investors XVI, L.P.	Sale	588	8/20/2012	$	128.00	Open Market
Relational Investors XX, L.P.	Sale	974	8/20/2012	$	127.93	Open Market
Relational Investors XX, L.P.	Sale	81	8/20/2012	$	127.93	Open Market
Relational Investors XX, L.P.	Sale	633	8/20/2012	$	128.00	Open Market
Relational Investors XXIII, L.P.	Sale	1,407	8/20/2012	$	127.93	Open Market
Relational Investors XXIII, L.P.	Sale	86	8/20/2012	$	127.93	Open Market
Relational Investors XXIII, L.P.	Sale	895	8/20/2012	$	128.00	Open Market
Relational Investors VIII, L.P.	Sale	7,978	8/20/2012	$	127.93	Open Market
Relational Investors VIII, L.P.	Sale	2,021	8/20/2012	$	127.93	Open Market
Relational Investors VIII, L.P.	Sale	6,003	8/20/2012	$	128.00	Open Market
Relational Investors IX, L.P.	Sale	314	8/20/2012	$	127.93	Open Market
Relational Investors IX, L.P.	Sale	1,385	8/20/2012	$	127.93	Open Market
Relational Investors IX, L.P.	Sale	728	8/20/2012	$	127.93	Open Market
Relational Investors IX, L.P.	Sale	959	8/20/2012	$	128.00	Open Market
Relational Investors IX, L.P.	Sale	497	8/20/2012	$	128.00	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,018	8/20/2012	$	127.93	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,626	8/20/2012	$	127.93	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	370	8/20/2012	$	128.00	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,216	8/20/2012	$	128.00	Open Market
Relational Investors LLC	Sale	4,651	8/20/2012	$	127.93	Open Market
Relational Investors LLC	Sale	2,790	8/20/2012	$	128.00	Open Market
Relational Investors, L.P.	Sale	6,166	8/21/2012	$	127.44	Open Market
Relational Investors, L.P.	Sale	2,676	8/21/2012	$	127.44	Open Market
Relational Investors, L.P.	Sale	24	8/21/2012	$	127.44	Open Market

Relational Investors, L.P.	Sale	803	8/21/2012	$	127.44	Open Market
Relational Investors, L.P.	Sale	717	8/21/2012	$	127.44	Open Market
Relational Investors, L.P.	Sale	235	8/21/2012	$	128.51	Open Market
Relational Investors LLC	Sale	4,603	8/21/2012	$	127.44	Open Market
Relational Investors LLC	Sale	104	8/21/2012	$	128.51	Open Market
Relational Investors LLC	Sale	625	8/21/2012	$	127.44	Open Market
Relational Investors LLC	Sale	8,152	8/21/2012	$	127.44	Open Market
Relational Investors LLC	Sale	1,562	8/21/2012	$	127.44	Open Market
Relational Investors LLC	Sale	234	8/21/2012	$	128.51	Open Market
Relational Coast Partners, L.P.	Sale	681	8/21/2012	$	127.44	Open Market
Relational Coast Partners, L.P.	Sale	1,945	8/21/2012	$	127.44	Open Market
Relational Coast Partners, L.P.	Sale	59	8/21/2012	$	128.51	Open Market
Relational Coast Partners, L.P.	Sale	9	8/21/2012	$	127.44	Open Market
Relational Coast Partners, L.P.	Sale	38	8/21/2012	$	127.44	Open Market
Relational Coast Partners, L.P.	Sale	83	8/21/2012	$	127.44	Open Market
Relational Coast Partners, L.P.	Sale	2	8/21/2012	$	128.51	Open Market
Relational Fund Partners, L.P.	Sale	107	8/21/2012	$	127.44	Open Market
Relational Fund Partners, L.P.	Sale	46	8/21/2012	$	127.44	Open Market
Relational Fund Partners, L.P.	Sale	13	8/21/2012	$	127.44	Open Market
Relational Fund Partners, L.P.	Sale	21	8/21/2012	$	127.44	Open Market
Relational Fund Partners, L.P.	Sale	3	8/21/2012	$	128.51	Open Market
RH Fund I, L.P.	Sale	971	8/21/2012	$	127.44	Open Market
RH Fund I, L.P.	Sale	4,757	8/21/2012	$	127.44	Open Market
RH Fund I, L.P.	Sale	149	8/21/2012	$	127.44	Open Market
RH Fund I, L.P.	Sale	133	8/21/2012	$	128.51	Open Market
RH Fund 6, L.P.	Sale	252	8/21/2012	$	127.44	Open Market
RH Fund 6, L.P.	Sale	3,239	8/21/2012	$	127.44	Open Market
RH Fund 6, L.P.	Sale	618	8/21/2012	$	127.44	Open Market
RH Fund 6, L.P.	Sale	93	8/21/2012	$	128.51	Open Market
Relational Investors XV, L.P.	Sale	215	8/21/2012	$	127.44	Open Market
Relational Investors XV, L.P.	Sale	1,499	8/21/2012	$	127.44	Open Market
Relational Investors XV, L.P.	Sale	162	8/21/2012	$	127.44	Open Market
Relational Investors XV, L.P.	Sale	42	8/21/2012	$	128.51	Open Market
Relational Investors XVI, L.P.	Sale	1	8/21/2012	$	127.44	Open Market
Relational Investors XVI, L.P.	Sale	1,142	8/21/2012	$	127.44	Open Market
Relational Investors XVI, L.P.	Sale	329	8/21/2012	$	127.44	Open Market
Relational Investors XVI, L.P.	Sale	33	8/21/2012	$	128.51	Open Market
Relational Investors XX, L.P.	Sale	176	8/21/2012	$	127.44	Open Market
Relational Investors XX, L.P.	Sale	1,264	8/21/2012	$	127.44	Open Market
Relational Investors XX, L.P.	Sale	143	8/21/2012	$	127.44	Open Market
Relational Investors XX, L.P.	Sale	35	8/21/2012	$	128.51	Open Market
Relational Investors XXIII, L.P.	Sale	283	8/21/2012	$	127.44	Open Market
Relational Investors XXIII, L.P.	Sale	1,795	8/21/2012	$	127.44	Open Market
Relational Investors XXIII, L.P.	Sale	162	8/21/2012	$	127.44	Open Market
Relational Investors XXIII, L.P.	Sale	50	8/21/2012	$	128.51	Open Market
Relational Investors VIII, L.P.	Sale	213	8/21/2012	$	127.44	Open Market
Relational Investors VIII, L.P.	Sale	11,689	8/21/2012	$	127.44	Open Market

Relational Investors VIII, L.P.	Sale	3,087	8/21/2012	$	127.44	Open Market
Relational Investors VIII, L.P.	Sale	348	8/21/2012	$	128.51	Open Market
Relational Investors IX, L.P.	Sale	819	8/21/2012	$	127.44	Open Market
Relational Investors IX, L.P.	Sale	1,719	8/21/2012	$	127.44	Open Market
Relational Investors IX, L.P.	Sale	737	8/21/2012	$	127.44	Open Market
Relational Investors IX, L.P.	Sale	366	8/21/2012	$	127.44	Open Market
Relational Investors IX, L.P.	Sale	82	8/21/2012	$	128.51	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,617	8/21/2012	$	127.44	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	979	8/21/2012	$	127.44	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	8	8/21/2012	$	127.44	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	293	8/21/2012	$	127.44	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,069	8/21/2012	$	127.44	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	89	8/21/2012	$	128.51	Open Market
Relational Investors LLC	Sale	6,976	8/21/2012	$	127.44	Open Market
Relational Investors LLC	Sale	158	8/21/2012	$	128.51	Open Market
Relational Investors, L.P.	Sale	1,311	8/22/2012	$	127.58	Open Market
Relational Investors LLC	Sale	581	8/22/2012	$	127.58	Open Market
Relational Investors LLC	Sale	1,020	8/22/2012	$	127.58	Open Market
Relational Investors LLC	Sale	25	8/22/2012	$	127.58	Open Market
Relational Investors LLC	Sale	260	8/22/2012	$	127.58	Open Market
Relational Coast Partners, L.P.	Sale	331	8/22/2012	$	127.58	Open Market
Relational Coast Partners, L.P.	Sale	1	8/22/2012	$	127.58	Open Market
Relational Coast Partners, L.P.	Sale	15	8/22/2012	$	127.58	Open Market
Relational Fund Partners, L.P.	Sale	23	8/22/2012	$	127.58	Open Market
RH Fund I, L.P.	Sale	742	8/22/2012	$	127.58	Open Market
RH Fund 6, L.P.	Sale	408	8/22/2012	$	127.58	Open Market
RH Fund 6, L.P.	Sale	10	8/22/2012	$	127.58	Open Market
RH Fund 6, L.P.	Sale	100	8/22/2012	$	127.58	Open Market
Relational Investors XV, L.P.	Sale	237	8/22/2012	$	127.58	Open Market
Relational Investors XVI, L.P.	Sale	32	8/22/2012	$	127.58	Open Market
Relational Investors XVI, L.P.	Sale	3	8/22/2012	$	127.58	Open Market
Relational Investors XVI, L.P.	Sale	118	8/22/2012	$	127.58	Open Market
Relational Investors XVI, L.P.	Sale	32	8/22/2012	$	127.58	Open Market
Relational Investors XX, L.P.	Sale	200	8/22/2012	$	127.58	Open Market
Relational Investors XXIII, L.P.	Sale	282	8/22/2012	$	127.58	Open Market
Relational Investors VIII, L.P.	Sale	610	8/22/2012	$	127.58	Open Market
Relational Investors VIII, L.P.	Sale	47	8/22/2012	$	127.58	Open Market
Relational Investors VIII, L.P.	Sale	1,220	8/22/2012	$	127.58	Open Market
Relational Investors VIII, L.P.	Sale	23	8/22/2012	$	127.58	Open Market
Relational Investors IX, L.P.	Sale	459	8/22/2012	$	127.58	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	500	8/22/2012	$	127.58	Open Market
Relational Investors LLC	Sale	881	8/22/2012	$	127.58	Open Market
Relational Investors, L.P.	Sale	3,849	9/11/2012	$	132.22	Open Market
Relational Investors LLC	Sale	1,705	9/11/2012	$	132.22	Open Market
Relational Investors LLC	Sale	585	9/11/2012	$	132.22	Open Market
Relational Investors LLC	Sale	3,247	9/11/2012	$	132.22	Open Market
Relational Coast Partners, L.P.	Sale	973	9/11/2012	$	132.22	Open Market

Relational Coast Partners, L.P.	Sale	3	9/11/2012	$	132.22	Open Market
Relational Coast Partners, L.P.	Sale	44	9/11/2012	$	132.22	Open Market
Relational Fund Partners, L.P.	Sale	67	9/11/2012	$	132.22	Open Market
RH Fund I, L.P.	Sale	619	9/11/2012	$	132.22	Open Market
RH Fund I, L.P.	Sale	14	9/11/2012	$	132.22	Open Market
RH Fund I, L.P.	Sale	489	9/11/2012	$	132.22	Open Market
RH Fund I, L.P.	Sale	1,056	9/11/2012	$	132.22	Open Market
RH Fund 6, L.P.	Sale	237	9/11/2012	$	132.22	Open Market
RH Fund 6, L.P.	Sale	1,285	9/11/2012	$	132.22	Open Market
Relational Investors XV, L.P.	Sale	77	9/11/2012	$	132.22	Open Market
Relational Investors XV, L.P.	Sale	4	9/11/2012	$	132.22	Open Market
Relational Investors XV, L.P.	Sale	156	9/11/2012	$	132.22	Open Market
Relational Investors XV, L.P.	Sale	458	9/11/2012	$	132.22	Open Market
Relational Investors XVI, L.P.	Sale	545	9/11/2012	$	132.22	Open Market
Relational Investors XX, L.P.	Sale	58	9/11/2012	$	132.22	Open Market
Relational Investors XX, L.P.	Sale	3	9/11/2012	$	132.22	Open Market
Relational Investors XX, L.P.	Sale	131	9/11/2012	$	132.22	Open Market
Relational Investors XX, L.P.	Sale	394	9/11/2012	$	132.22	Open Market
Relational Investors XXIII, L.P.	Sale	126	9/11/2012	$	132.22	Open Market
Relational Investors XXIII, L.P.	Sale	5	9/11/2012	$	132.22	Open Market
Relational Investors XXIII, L.P.	Sale	186	9/11/2012	$	132.22	Open Market
Relational Investors XXIII, L.P.	Sale	513	9/11/2012	$	132.22	Open Market
Relational Investors VIII, L.P.	Sale	5,568	9/11/2012	$	132.22	Open Market
Relational Investors IX, L.P.	Sale	1,349	9/11/2012	$	132.22	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,469	9/11/2012	$	132.22	Open Market
Relational Investors LLC	Sale	2,585	9/11/2012	$	132.22	Open Market
Relational Investors, L.P.	Sale	5,844	9/12/2012	$	132.43	Open Market
Relational Investors LLC	Sale	2,590	9/12/2012	$	132.43	Open Market
Relational Investors LLC	Sale	5,817	9/12/2012	$	132.43	Open Market
Relational Coast Partners, L.P.	Sale	1,477	9/12/2012	$	132.43	Open Market
Relational Coast Partners, L.P.	Sale	4	9/12/2012	$	132.43	Open Market
Relational Coast Partners, L.P.	Sale	57	9/12/2012	$	132.43	Open Market
Relational Coast Partners, L.P.	Sale	11	9/12/2012	$	132.43	Open Market
Relational Fund Partners, L.P.	Sale	104	9/12/2012	$	132.43	Open Market
RH Fund I, L.P.	Sale	3,306	9/12/2012	$	132.43	Open Market
RH Fund 6, L.P.	Sale	2,311	9/12/2012	$	132.43	Open Market
Relational Investors XV, L.P.	Sale	1,055	9/12/2012	$	132.43	Open Market
Relational Investors XVI, L.P.	Sale	828	9/12/2012	$	132.43	Open Market
Relational Investors XX, L.P.	Sale	890	9/12/2012	$	132.43	Open Market
Relational Investors XXIII, L.P.	Sale	1,260	9/12/2012	$	132.43	Open Market
Relational Investors VIII, L.P.	Sale	8,442	9/12/2012	$	132.43	Open Market
Relational Investors IX, L.P.	Sale	184	9/12/2012	$	132.43	Open Market
Relational Investors IX, L.P.	Sale	1,046	9/12/2012	$	132.43	Open Market
Relational Investors IX, L.P.	Sale	818	9/12/2012	$	132.43	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,231	9/12/2012	$	132.43	Open Market
Relational Investors LLC	Sale	3,925	9/12/2012	$	132.43	Open Market
Relational Investors, L.P.	Sale	2,770	9/13/2012	$	131.82	Open Market

Relational Investors, L.P.	Sale	2,770	9/13/2012	$	132.03	Open Market
Relational Investors LLC	Sale	1,227	9/13/2012	$	131.82	Open Market
Relational Investors LLC	Sale	1,227	9/13/2012	$	132.03	Open Market
Relational Investors LLC	Sale	2,757	9/13/2012	$	131.82	Open Market
Relational Investors LLC	Sale	2,757	9/13/2012	$	132.03	Open Market
Relational Coast Partners, L.P.	Sale	170	9/13/2012	$	131.82	Open Market
Relational Coast Partners, L.P.	Sale	530	9/13/2012	$	131.82	Open Market
Relational Coast Partners, L.P.	Sale	700	9/13/2012	$	132.03	Open Market
Relational Coast Partners, L.P.	Sale	2	9/13/2012	$	131.82	Open Market
Relational Coast Partners, L.P.	Sale	2	9/13/2012	$	132.03	Open Market
Relational Coast Partners, L.P.	Sale	29	9/13/2012	$	131.82	Open Market
Relational Coast Partners, L.P.	Sale	3	9/13/2012	$	131.82	Open Market
Relational Coast Partners, L.P.	Sale	11	9/13/2012	$	132.03	Open Market
Relational Coast Partners, L.P.	Sale	21	9/13/2012	$	132.03	Open Market
Relational Fund Partners, L.P.	Sale	50	9/13/2012	$	131.82	Open Market
Relational Fund Partners, L.P.	Sale	50	9/13/2012	$	132.03	Open Market
RH Fund I, L.P.	Sale	1,567	9/13/2012	$	131.82	Open Market
RH Fund I, L.P.	Sale	1,567	9/13/2012	$	132.03	Open Market
RH Fund 6, L.P.	Sale	1,095	9/13/2012	$	131.82	Open Market
RH Fund 6, L.P.	Sale	1,095	9/13/2012	$	132.03	Open Market
Relational Investors XV, L.P.	Sale	500	9/13/2012	$	131.82	Open Market
Relational Investors XV, L.P.	Sale	500	9/13/2012	$	132.03	Open Market
Relational Investors XVI, L.P.	Sale	392	9/13/2012	$	131.82	Open Market
Relational Investors XVI, L.P.	Sale	392	9/13/2012	$	132.03	Open Market
Relational Investors XX, L.P.	Sale	422	9/13/2012	$	131.82	Open Market
Relational Investors XX, L.P.	Sale	422	9/13/2012	$	132.03	Open Market
Relational Investors XXIII, L.P.	Sale	597	9/13/2012	$	131.82	Open Market
Relational Investors XXIII, L.P.	Sale	597	9/13/2012	$	132.03	Open Market
Relational Investors VIII, L.P.	Sale	4,001	9/13/2012	$	131.82	Open Market
Relational Investors VIII, L.P.	Sale	4,001	9/13/2012	$	132.03	Open Market
Relational Investors IX, L.P.	Sale	386	9/13/2012	$	131.82	Open Market
Relational Investors IX, L.P.	Sale	7	9/13/2012	$	131.82	Open Market
Relational Investors IX, L.P.	Sale	3	9/13/2012	$	131.82	Open Market
Relational Investors IX, L.P.	Sale	253	9/13/2012	$	131.82	Open Market
Relational Investors IX, L.P.	Sale	108	9/13/2012	$	131.82	Open Market
Relational Investors IX, L.P.	Sale	214	9/13/2012	$	131.82	Open Market
Relational Investors IX, L.P.	Sale	971	9/13/2012	$	132.03	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,057	9/13/2012	$	131.82	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,057	9/13/2012	$	132.03	Open Market
Relational Investors LLC	Sale	1,860	9/13/2012	$	131.82	Open Market
Relational Investors LLC	Sale	1,860	9/13/2012	$	132.03	Open Market
Relational Investors, L.P.	Sale	1,937	9/14/2012	$	134.64	Open Market
Relational Investors, L.P.	Sale	2,218	9/14/2012	$	134.29	Open Market
Relational Investors, L.P.	Sale	1,385	9/14/2012	$	134.44	Open Market
Relational Investors LLC	Sale	859	9/14/2012	$	134.64	Open Market
Relational Investors LLC	Sale	983	9/14/2012	$	134.29	Open Market
Relational Investors LLC	Sale	614	9/14/2012	$	134.44	Open Market

Relational Investors LLC	Sale	1,929	9/14/2012	$	134.64	Open Market
Relational Investors LLC	Sale	2,208	9/14/2012	$	134.29	Open Market
Relational Investors LLC	Sale	1,378	9/14/2012	$	134.44	Open Market
Relational Coast Partners, L.P.	Sale	490	9/14/2012	$	134.64	Open Market
Relational Coast Partners, L.P.	Sale	561	9/14/2012	$	134.29	Open Market
Relational Coast Partners, L.P.	Sale	351	9/14/2012	$	134.44	Open Market
Relational Coast Partners, L.P.	Sale	2	9/14/2012	$	134.65	Open Market
Relational Coast Partners, L.P.	Sale	2	9/14/2012	$	134.29	Open Market
Relational Coast Partners, L.P.	Sale	2	9/14/2012	$	134.44	Open Market
Relational Coast Partners, L.P.	Sale	23	9/14/2012	$	134.64	Open Market
Relational Coast Partners, L.P.	Sale	26	9/14/2012	$	134.29	Open Market
Relational Coast Partners, L.P.	Sale	17	9/14/2012	$	134.44	Open Market
Relational Fund Partners, L.P.	Sale	35	9/14/2012	$	134.64	Open Market
Relational Fund Partners, L.P.	Sale	41	9/14/2012	$	134.29	Open Market
Relational Fund Partners, L.P.	Sale	27	9/14/2012	$	134.44	Open Market
RH Fund I, L.P.	Sale	1,098	9/14/2012	$	134.64	Open Market
RH Fund I, L.P.	Sale	1,254	9/14/2012	$	134.29	Open Market
RH Fund I, L.P.	Sale	783	9/14/2012	$	134.44	Open Market
RH Fund 6, L.P.	Sale	767	9/14/2012	$	134.64	Open Market
RH Fund 6, L.P.	Sale	878	9/14/2012	$	134.29	Open Market
RH Fund 6, L.P.	Sale	548	9/14/2012	$	134.44	Open Market
Relational Investors XV, L.P.	Sale	350	9/14/2012	$	134.64	Open Market
Relational Investors XV, L.P.	Sale	401	9/14/2012	$	134.29	Open Market
Relational Investors XV, L.P.	Sale	251	9/14/2012	$	134.44	Open Market
Relational Investors XVI, L.P.	Sale	276	9/14/2012	$	134.64	Open Market
Relational Investors XVI, L.P.	Sale	314	9/14/2012	$	134.29	Open Market
Relational Investors XVI, L.P.	Sale	196	9/14/2012	$	134.44	Open Market
Relational Investors XX, L.P.	Sale	297	9/14/2012	$	134.64	Open Market
Relational Investors XX, L.P.	Sale	338	9/14/2012	$	134.29	Open Market
Relational Investors XX, L.P.	Sale	211	9/14/2012	$	134.44	Open Market
Relational Investors XXIII, L.P.	Sale	418	9/14/2012	$	134.64	Open Market
Relational Investors XXIII, L.P.	Sale	478	9/14/2012	$	134.29	Open Market
Relational Investors XXIII, L.P.	Sale	299	9/14/2012	$	134.44	Open Market
Relational Investors VIII, L.P.	Sale	2,789	9/14/2012	$	134.64	Open Market
Relational Investors VIII, L.P.	Sale	3,192	9/14/2012	$	134.29	Open Market
Relational Investors VIII, L.P.	Sale	1,993	9/14/2012	$	134.44	Open Market
Relational Investors IX, L.P.	Sale	679	9/14/2012	$	134.64	Open Market
Relational Investors IX, L.P.	Sale	777	9/14/2012	$	134.29	Open Market
Relational Investors IX, L.P.	Sale	486	9/14/2012	$	134.44	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	740	9/14/2012	$	134.64	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	848	9/14/2012	$	134.29	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	172	9/14/2012	$	134.44	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	357	9/14/2012	$	134.44	Open Market
Relational Investors LLC	Sale	1,303	9/14/2012	$	134.64	Open Market
Relational Investors LLC	Sale	1,489	9/14/2012	$	134.29	Open Market
Relational Investors LLC	Sale	930	9/14/2012	$	134.44	Open Market
Relational Investors, L.P.	Sale	27	9/17/2012	$	133.99	Open Market

Relational Investors LLC	Sale	12	9/17/2012	$	133.99	Open Market
Relational Investors LLC	Sale	27	9/17/2012	$	133.99	Open Market
Relational Coast Partners, L.P.	Sale	7	9/17/2012	$	133.99	Open Market
RH Fund I, L.P.	Sale	15	9/17/2012	$	133.99	Open Market
RH Fund 6, L.P.	Sale	10	9/17/2012	$	133.99	Open Market
Relational Investors XV, L.P.	Sale	5	9/17/2012	$	133.99	Open Market
Relational Investors XVI, L.P.	Sale	3	9/17/2012	$	133.99	Open Market
Relational Investors XX, L.P.	Sale	4	9/17/2012	$	133.99	Open Market
Relational Investors XXIII, L.P.	Sale	5	9/17/2012	$	133.99	Open Market
Relational Investors VIII, L.P.	Sale	48	9/17/2012	$	133.99	Open Market
Relational Investors IX, L.P.	Sale	9	9/17/2012	$	133.99	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	10	9/17/2012	$	133.99	Open Market
Relational Investors LLC	Sale	18	9/17/2012	$	133.99	Open Market
Relational Investors, L.P.	Sale	2,048	10/1/2012	$	128.39	Open Market
Relational Investors LLC	Sale	32,733	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	355	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	56	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	97	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	463	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	104	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	553	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	104	10/1/2012	$	128.39	Open Market
Relational Coast Partners, L.P.	Sale	61	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	800	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,090	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	9,929	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,242	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	11,837	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,213	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	5,402	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	4,927	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,169	10/1/2012	$	128.39	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	17,201	10/1/2012	$	128.39	Open Market

Relational Investors, L.P.	Sale	123	10/2/2012	$	127.69	Open Market
Relational Investors, L.P.	Sale	2,378	10/2/2012	$	127.69	Open Market
Relational Investors, L.P.	Sale	168	10/2/2012	$	127.48	Open Market
Relational Investors LLC	Sale	39,982	10/2/2012	$	127.69	Open Market
Relational Investors LLC	Sale	2,676	10/2/2012	$	127.48	Open Market
Relational Coast Partners, L.P.	Sale	88	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	136	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	60	10/2/2012	$	127.70	Open Market
Relational Coast Partners, L.P.	Sale	485	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	145	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	145	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	46	10/2/2012	$	127.70	Open Market
Relational Coast Partners, L.P.	Sale	77	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	155	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	85	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	22	10/2/2012	$	127.70	Open Market
Relational Coast Partners, L.P.	Sale	222	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	135	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	41	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	105	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	51	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	24	10/2/2012	$	127.70	Open Market
Relational Coast Partners, L.P.	Sale	34	10/2/2012	$	127.70	Open Market
Relational Coast Partners, L.P.	Sale	90	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	1	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	1	10/2/2012	$	127.70	Open Market
Relational Coast Partners, L.P.	Sale	5	10/2/2012	$	127.69	Open Market
Relational Coast Partners, L.P.	Sale	37	10/2/2012	$	127.70	Open Market
Relational Coast Partners, L.P.	Sale	147	10/2/2012	$	127.48	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	357	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	5,241	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	5,241	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,649	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,792	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	5,580	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	3,070	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	792	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	7,917	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	4,789	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	3,039	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	7,606	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	3,715	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	1,748	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	2,530	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	6,612	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	83	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	125	10/2/2012	$	127.69	Open Market

Relational Investors Alpha Fund I, L.P.	Sale	426	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	8,515	10/2/2012	$	127.69	Open Market
Relational Investors Alpha Fund I, L.P.	Sale	4,809	10/2/2012	$	127.48	Open Market