Exhibit A

Transactions by Reporting Persons in the last 60 days.

Beneficial Ownership	Purchase or Sale	Quantity	Transaction Date	Price per Share (including commission)		How Effected
Relational Investors LLC	Sale	4,276	1/20/2015	$	81.55	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	5,477	1/20/2015	$	81.55	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	246	1/20/2015	$	81.55	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	5,613	1/20/2015	$	81.55	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	7,201	1/20/2015	$	81.55	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	190	1/20/2015	$	81.55	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	5,463	1/20/2015	$	81.55	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	14,522	1/20/2015	$	81.55	Open Market
Relational Investors LLC	Sale	2,810	1/20/2015	$	81.55	Open Market
Relational Investors LLC	Sale	11,235	1/20/2015	$	81.55	Open Market
Relational Investors LLC	Sale	149	1/20/2015	$	81.55	Open Market
Relational Coast Partners, L.P.	Sale	1,232	1/20/2015	$	81.55	Open Market
Relational Coast Partners, L.P.	Sale	3,414	1/20/2015	$	81.55	Open Market
Relational Fund Partners, L.P.	Sale	295	1/20/2015	$	81.55	Open Market
RH Fund 1, L.P.	Sale	2,088	1/20/2015	$	81.55	Open Market
Relational Investors XV, L.P.	Sale	3,111	1/20/2015	$	81.55	Open Market
Relational Investors XVI, L.P.	Sale	1,542	1/20/2015	$	81.55	Open Market
Relational Investors XX, L.P.	Sale	2,802	1/20/2015	$	81.55	Open Market
Relational Investors XXIII, L.P.	Sale	3,973	1/20/2015	$	81.55	Open Market
Relational Investors IX, L.P.	Sale	3,769	1/20/2015	$	81.55	Open Market
Relational Investors IX, L.P.	Sale	1,615	1/20/2015	$	81.55	Open Market
Relational Investors LLC	Sale	12,304	1/20/2015	$	81.55	Open Market
Relational Investors XXIV, L.P.	Sale	82	1/20/2015	$	81.55	Open Market
Relational Investors LLC	Sale	3,206	1/21/2015	$	82.34	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	13,175	1/21/2015	$	82.34	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	860	1/21/2015	$	82.34	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	14,964	1/21/2015	$	82.34	Open Market
Relational Investors LLC	Sale	10,638	1/21/2015	$	82.34	Open Market
Relational Coast Partners, L.P.	Sale	3,482	1/21/2015	$	82.34	Open Market
Relational Fund Partners, L.P.	Sale	222	1/21/2015	$	82.34	Open Market
RH Fund 1, L.P.	Sale	1,566	1/21/2015	$	82.34	Open Market
Relational Investors XV, L.P.	Sale	2,332	1/21/2015	$	82.34	Open Market
Relational Investors XVI, L.P.	Sale	1,157	1/21/2015	$	82.34	Open Market
Relational Investors XX, L.P.	Sale	401	1/21/2015	$	82.34	Open Market
Relational Investors XX, L.P.	Sale	1,699	1/21/2015	$	82.34	Open Market
Relational Investors XXIII, L.P.	Sale	514	1/21/2015	$	82.34	Open Market
Relational Investors XXIII, L.P.	Sale	2,465	1/21/2015	$	82.34	Open Market
Relational Investors IX, L.P.	Sale	2,824	1/21/2015	$	82.34	Open Market
Relational Investors IX, L.P.	Sale	1,211	1/21/2015	$	82.34	Open Market
Relational Investors LLC	Sale	9,222	1/21/2015	$	82.34	Open Market
Relational Investors XXIV, L.P.	Sale	62	1/21/2015	$	82.34	Open Market
Relational Investors LLC	Sale	377	3/4/2015	$	88.03	Open Market
Relational Investors LLC	Sale	1,373	3/4/2015	$	88.19	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,654	3/4/2015	$	88.03	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	6,014	3/4/2015	$	88.19	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,773	3/4/2015	$	88.03	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,914	3/4/2015	$	88.19	Open Market

Relational Investors Mid-Cap Fund II, L.P.	Sale	3,514	3/4/2015	$	88.19	Open Market
Relational Investors LLC	Sale	1,253	3/4/2015	$	88.03	Open Market
Relational Investors LLC	Sale	3,225	3/4/2015	$	88.19	Open Market
Relational Investors LLC	Sale	1,333	3/4/2015	$	88.19	Open Market
Relational Coast Partners, L.P.	Sale	410	3/4/2015	$	88.03	Open Market
Relational Coast Partners, L.P.	Sale	1,491	3/4/2015	$	88.19	Open Market
Relational Fund Partners, L.P.	Sale	26	3/4/2015	$	88.03	Open Market
Relational Fund Partners, L.P.	Sale	94	3/4/2015	$	88.19	Open Market
RH Fund 1, L.P.	Sale	184	3/4/2015	$	88.03	Open Market
RH Fund 1, L.P.	Sale	670	3/4/2015	$	88.19	Open Market
Relational Investors XV, L.P.	Sale	274	3/4/2015	$	88.03	Open Market
Relational Investors XV, L.P.	Sale	998	3/4/2015	$	88.19	Open Market
Relational Investors XVI, L.P.	Sale	136	3/4/2015	$	88.03	Open Market
Relational Investors XVI, L.P.	Sale	495	3/4/2015	$	88.19	Open Market
Relational Investors XX, L.P.	Sale	247	3/4/2015	$	88.03	Open Market
Relational Investors XX, L.P.	Sale	899	3/4/2015	$	88.19	Open Market
Relational Investors XXIII, L.P.	Sale	350	3/4/2015	$	88.03	Open Market
Relational Investors XXIII, L.P.	Sale	1,275	3/4/2015	$	88.19	Open Market
Relational Investors IX, L.P.	Sale	475	3/4/2015	$	88.03	Open Market
Relational Investors IX, L.P.	Sale	1,728	3/4/2015	$	88.19	Open Market
Relational Investors LLC	Sale	1,086	3/4/2015	$	88.03	Open Market
Relational Investors LLC	Sale	3,951	3/4/2015	$	88.19	Open Market
Relational Investors XXIV, L.P.	Sale	7	3/4/2015	$	88.03	Open Market
Relational Investors XXIV, L.P.	Sale	26	3/4/2015	$	88.19	Open Market
Relational Investors LLC	Sale	401	3/6/2015	$	85.84	Open Market
Relational Investors LLC	Sale	943	3/6/2015	$	85.70	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	384	3/6/2015	$	85.84	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,373	3/6/2015	$	85.84	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,130	3/6/2015	$	85.70	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,885	3/6/2015	$	85.84	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,415	3/6/2015	$	85.70	Open Market
Relational Investors LLC	Sale	1,332	3/6/2015	$	85.84	Open Market
Relational Investors LLC	Sale	3,130	3/6/2015	$	85.70	Open Market
Relational Coast Partners, L.P.	Sale	435	3/6/2015	$	85.84	Open Market
Relational Coast Partners, L.P.	Sale	1,024	3/6/2015	$	85.70	Open Market
Relational Fund Partners, L.P.	Sale	27	3/6/2015	$	85.84	Open Market
Relational Fund Partners, L.P.	Sale	64	3/6/2015	$	85.70	Open Market
RH Fund 1, L.P.	Sale	195	3/6/2015	$	85.84	Open Market
RH Fund 1, L.P.	Sale	460	3/6/2015	$	85.70	Open Market
Relational Investors XV, L.P.	Sale	291	3/6/2015	$	85.84	Open Market
Relational Investors XV, L.P.	Sale	686	3/6/2015	$	85.70	Open Market
Relational Investors XVI, L.P.	Sale	144	3/6/2015	$	85.84	Open Market
Relational Investors XVI, L.P.	Sale	339	3/6/2015	$	85.70	Open Market
Relational Investors XX, L.P.	Sale	262	3/6/2015	$	85.84	Open Market
Relational Investors XX, L.P.	Sale	617	3/6/2015	$	85.70	Open Market
Relational Investors XXIII, L.P.	Sale	372	3/6/2015	$	85.84	Open Market
Relational Investors XXIII, L.P.	Sale	876	3/6/2015	$	85.70	Open Market

Relational Investors IX, L.P.	Sale	505	3/6/2015	$	85.84	Open Market
Relational Investors IX, L.P.	Sale	1,187	3/6/2015	$	85.70	Open Market
Relational Investors LLC	Sale	1,154	3/6/2015	$	85.84	Open Market
Relational Investors LLC	Sale	2,713	3/6/2015	$	85.70	Open Market
Relational Investors XXIV, L.P.	Sale	7	3/6/2015	$	85.83	Open Market
Relational Investors XXIV, L.P.	Sale	17	3/6/2015	$	85.70	Open Market
Relational Investors LLC	Sale	1,144	3/9/2015	$	86.32	Open Market
Relational Investors LLC	Sale	839	3/9/2015	$	86.82	Open Market
Relational Investors LLC	Sale	1,065	3/9/2015	$	86.81	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	3,066	3/9/2015	$	86.32	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,946	3/9/2015	$	86.32	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	3,677	3/9/2015	$	86.82	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,665	3/9/2015	$	86.81	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	5,357	3/9/2015	$	86.32	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,941	3/9/2015	$	86.82	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	990	3/9/2015	$	86.82	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	957	3/9/2015	$	86.82	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,979	3/9/2015	$	86.82	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,050	3/9/2015	$	86.82	Open Market
Relational Investors LLC	Sale	3,798	3/9/2015	$	86.32	Open Market
Relational Investors LLC	Sale	2,787	3/9/2015	$	86.82	Open Market
Relational Investors LLC	Sale	3,536	3/9/2015	$	86.82	Open Market
Relational Coast Partners, L.P.	Sale	1,243	3/9/2015	$	86.32	Open Market
Relational Coast Partners, L.P.	Sale	912	3/9/2015	$	86.82	Open Market
Relational Coast Partners, L.P.	Sale	1,157	3/9/2015	$	86.81	Open Market
Relational Fund Partners, L.P.	Sale	78	3/9/2015	$	86.32	Open Market
Relational Fund Partners, L.P.	Sale	57	3/9/2015	$	86.82	Open Market
Relational Fund Partners, L.P.	Sale	73	3/9/2015	$	86.81	Open Market
RH Fund 1, L.P.	Sale	558	3/9/2015	$	86.32	Open Market
RH Fund 1, L.P.	Sale	409	3/9/2015	$	86.82	Open Market
RH Fund 1, L.P.	Sale	520	3/9/2015	$	86.81	Open Market
Relational Investors XV, L.P.	Sale	832	3/9/2015	$	86.32	Open Market
Relational Investors XV, L.P.	Sale	610	3/9/2015	$	86.82	Open Market
Relational Investors XV, L.P.	Sale	774	3/9/2015	$	86.82	Open Market
Relational Investors XVI, L.P.	Sale	412	3/9/2015	$	86.32	Open Market
Relational Investors XVI, L.P.	Sale	302	3/9/2015	$	86.82	Open Market
Relational Investors XVI, L.P.	Sale	384	3/9/2015	$	86.81	Open Market
Relational Investors XX, L.P.	Sale	387	3/9/2015	$	86.32	Open Market
Relational Investors XX, L.P.	Sale	362	3/9/2015	$	86.32	Open Market
Relational Investors XX, L.P.	Sale	550	3/9/2015	$	86.82	Open Market
Relational Investors XX, L.P.	Sale	697	3/9/2015	$	86.81	Open Market
Relational Investors XXIII, L.P.	Sale	498	3/9/2015	$	86.32	Open Market
Relational Investors XXIII, L.P.	Sale	565	3/9/2015	$	86.32	Open Market
Relational Investors XXIII, L.P.	Sale	780	3/9/2015	$	86.82	Open Market
Relational Investors XXIII, L.P.	Sale	989	3/9/2015	$	86.81	Open Market
Relational Investors IX, L.P.	Sale	1,440	3/9/2015	$	86.32	Open Market
Relational Investors IX, L.P.	Sale	1,057	3/9/2015	$	86.82	Open Market

Relational Investors IX, L.P.	Sale	939	3/9/2015	$	86.81	Open Market
Relational Investors IX, L.P.	Sale	402	3/9/2015	$	86.82	Open Market
Relational Investors LLC	Sale	3,293	3/9/2015	$	86.32	Open Market
Relational Investors LLC	Sale	2,416	3/9/2015	$	86.82	Open Market
Relational Investors LLC	Sale	3,065	3/9/2015	$	86.81	Open Market
Relational Investors XXIV, L.P.	Sale	21	3/9/2015	$	86.32	Open Market
Relational Investors XXIV, L.P.	Sale	16	3/9/2015	$	86.82	Open Market
Relational Investors XXIV, L.P.	Sale	20	3/9/2015	$	86.81	Open Market
Relational Investors LLC	Sale	1,066	3/10/2015	$	85.11	Open Market
Relational Investors LLC	Sale	654	3/10/2015	$	85.26	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,671	3/10/2015	$	85.11	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,867	3/10/2015	$	85.26	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,993	3/10/2015	$	85.11	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	3,065	3/10/2015	$	85.26	Open Market
Relational Investors LLC	Sale	3,540	3/10/2015	$	85.11	Open Market
Relational Investors LLC	Sale	2,173	3/10/2015	$	85.26	Open Market
Relational Coast Partners, L.P.	Sale	1,158	3/10/2015	$	85.11	Open Market
Relational Coast Partners, L.P.	Sale	711	3/10/2015	$	85.26	Open Market
Relational Fund Partners, L.P.	Sale	73	3/10/2015	$	85.11	Open Market
Relational Fund Partners, L.P.	Sale	45	3/10/2015	$	85.26	Open Market
RH Fund 1, L.P.	Sale	520	3/10/2015	$	85.11	Open Market
RH Fund 1, L.P.	Sale	319	3/10/2015	$	85.26	Open Market
Relational Investors XV, L.P.	Sale	136	3/10/2015	$	85.11	Open Market
Relational Investors XV, L.P.	Sale	639	3/10/2015	$	85.11	Open Market
Relational Investors XV, L.P.	Sale	476	3/10/2015	$	85.26	Open Market
Relational Investors XVI, L.P.	Sale	384	3/10/2015	$	85.11	Open Market
Relational Investors XVI, L.P.	Sale	72	3/10/2015	$	85.26	Open Market
Relational Investors XVI, L.P.	Sale	164	3/10/2015	$	85.26	Open Market
Relational Investors XX, L.P.	Sale	698	3/10/2015	$	85.11	Open Market
Relational Investors XX, L.P.	Sale	413	3/10/2015	$	85.26	Open Market
Relational Investors XX, L.P.	Sale	15	3/10/2015	$	85.26	Open Market
Relational Investors XXIII, L.P.	Sale	991	3/10/2015	$	85.11	Open Market
Relational Investors XXIII, L.P.	Sale	535	3/10/2015	$	85.26	Open Market
Relational Investors XXIII, L.P.	Sale	73	3/10/2015	$	85.26	Open Market
Relational Investors IX, L.P.	Sale	993	3/10/2015	$	85.11	Open Market
Relational Investors IX, L.P.	Sale	349	3/10/2015	$	85.11	Open Market
Relational Investors IX, L.P.	Sale	824	3/10/2015	$	85.26	Open Market
Relational Investors LLC	Sale	3,069	3/10/2015	$	85.11	Open Market
Relational Investors LLC	Sale	1,883	3/10/2015	$	85.26	Open Market
Relational Investors XXIV, L.P.	Sale	20	3/10/2015	$	85.11	Open Market
Relational Investors XXIV, L.P.	Sale	12	3/10/2015	$	85.26	Open Market
Relational Investors LLC	Sale	1,977	3/11/2015	$	84.46	Open Market
Relational Investors LLC	Sale	2,715	3/11/2015	$	84.48	Open Market
Relational Investors LLC	Sale	1,018	3/11/2015	$	84.55	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	8,660	3/11/2015	$	84.46	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	11,891	3/11/2015	$	84.48	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,459	3/11/2015	$	84.55	Open Market

Relational Investors Mid-Cap Fund II, L.P.	Sale	9,251	3/11/2015	$	84.46	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	11,888	3/11/2015	$	84.48	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	809	3/11/2015	$	84.48	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,764	3/11/2015	$	84.55	Open Market
Relational Investors LLC	Sale	6,564	3/11/2015	$	84.46	Open Market
Relational Investors LLC	Sale	9,012	3/11/2015	$	84.48	Open Market
Relational Investors LLC	Sale	3,380	3/11/2015	$	84.55	Open Market
Relational Coast Partners, L.P.	Sale	2,148	3/11/2015	$	84.46	Open Market
Relational Coast Partners, L.P.	Sale	2,949	3/11/2015	$	84.48	Open Market
Relational Coast Partners, L.P.	Sale	1,106	3/11/2015	$	84.55	Open Market
Relational Fund Partners, L.P.	Sale	97	3/11/2015	$	84.46	Open Market
Relational Fund Partners, L.P.	Sale	39	3/11/2015	$	84.46	Open Market
Relational Fund Partners, L.P.	Sale	187	3/11/2015	$	84.48	Open Market
Relational Fund Partners, L.P.	Sale	70	3/11/2015	$	84.55	Open Market
RH Fund 1, L.P.	Sale	965	3/11/2015	$	84.46	Open Market
RH Fund 1, L.P.	Sale	1,325	3/11/2015	$	84.48	Open Market
RH Fund 1, L.P.	Sale	497	3/11/2015	$	84.55	Open Market
Relational Investors XV, L.P.	Sale	1,438	3/11/2015	$	84.46	Open Market
Relational Investors XV, L.P.	Sale	1,975	3/11/2015	$	84.48	Open Market
Relational Investors XV, L.P.	Sale	305	3/11/2015	$	84.55	Open Market
Relational Investors XV, L.P.	Sale	435	3/11/2015	$	84.55	Open Market
Relational Investors XVI, L.P.	Sale	713	3/11/2015	$	84.46	Open Market
Relational Investors XVI, L.P.	Sale	979	3/11/2015	$	84.48	Open Market
Relational Investors XVI, L.P.	Sale	367	3/11/2015	$	84.55	Open Market
Relational Investors XX, L.P.	Sale	1,295	3/11/2015	$	84.46	Open Market
Relational Investors XX, L.P.	Sale	1,779	3/11/2015	$	84.48	Open Market
Relational Investors XX, L.P.	Sale	667	3/11/2015	$	84.55	Open Market
Relational Investors XXIII, L.P.	Sale	1,837	3/11/2015	$	84.46	Open Market
Relational Investors XXIII, L.P.	Sale	2,522	3/11/2015	$	84.48	Open Market
Relational Investors XXIII, L.P.	Sale	946	3/11/2015	$	84.55	Open Market
Relational Investors IX, L.P.	Sale	2,489	3/11/2015	$	84.46	Open Market
Relational Investors IX, L.P.	Sale	2,393	3/11/2015	$	84.48	Open Market
Relational Investors IX, L.P.	Sale	1,025	3/11/2015	$	84.48	Open Market
Relational Investors IX, L.P.	Sale	1,281	3/11/2015	$	84.55	Open Market
Relational Investors LLC	Sale	5,690	3/11/2015	$	84.46	Open Market
Relational Investors LLC	Sale	7,812	3/11/2015	$	84.48	Open Market
Relational Investors LLC	Sale	2,930	3/11/2015	$	84.55	Open Market
Relational Investors XXIV, L.P.	Sale	37	3/11/2015	$	84.46	Open Market
Relational Investors XXIV, L.P.	Sale	51	3/11/2015	$	84.48	Open Market
Relational Investors XXIV, L.P.	Sale	19	3/11/2015	$	84.55	Open Market
Relational Investors LLC	Sale	2,289	3/12/2015	$	85.61	Open Market
Relational Investors LLC	Sale	540	3/12/2015	$	85.14	Open Market
Relational Investors LLC	Sale	1,824	3/12/2015	$	84.98	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	10,024	3/12/2015	$	85.61	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,367	3/12/2015	$	85.14	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	7,991	3/12/2015	$	84.98	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,665	3/12/2015	$	85.61	Open Market

Relational Investors Mid-Cap Fund II, L.P.	Sale	6,038	3/12/2015	$	85.61	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,533	3/12/2015	$	85.14	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	8,533	3/12/2015	$	84.98	Open Market
Relational Investors LLC	Sale	7,597	3/12/2015	$	85.61	Open Market
Relational Investors LLC	Sale	1,794	3/12/2015	$	85.14	Open Market
Relational Investors LLC	Sale	6,056	3/12/2015	$	84.98	Open Market
Relational Coast Partners, L.P.	Sale	2,486	3/12/2015	$	85.61	Open Market
Relational Coast Partners, L.P.	Sale	587	3/12/2015	$	85.14	Open Market
Relational Coast Partners, L.P.	Sale	1,982	3/12/2015	$	84.98	Open Market
Relational Fund Partners, L.P.	Sale	146	3/12/2015	$	85.61	Open Market
Relational Fund Partners, L.P.	Sale	12	3/12/2015	$	85.61	Open Market
Relational Fund Partners, L.P.	Sale	37	3/12/2015	$	85.14	Open Market
Relational Fund Partners, L.P.	Sale	126	3/12/2015	$	84.98	Open Market
RH Fund 1, L.P.	Sale	1,117	3/12/2015	$	85.61	Open Market
RH Fund 1, L.P.	Sale	264	3/12/2015	$	85.14	Open Market
RH Fund 1, L.P.	Sale	891	3/12/2015	$	84.98	Open Market
Relational Investors XV, L.P.	Sale	1,665	3/12/2015	$	85.61	Open Market
Relational Investors XV, L.P.	Sale	393	3/12/2015	$	85.14	Open Market
Relational Investors XV, L.P.	Sale	707	3/12/2015	$	84.98	Open Market
Relational Investors XV, L.P.	Sale	620	3/12/2015	$	84.98	Open Market
Relational Investors XVI, L.P.	Sale	825	3/12/2015	$	85.61	Open Market
Relational Investors XVI, L.P.	Sale	194	3/12/2015	$	85.14	Open Market
Relational Investors XVI, L.P.	Sale	657	3/12/2015	$	84.98	Open Market
Relational Investors XX, L.P.	Sale	1,499	3/12/2015	$	85.61	Open Market
Relational Investors XX, L.P.	Sale	354	3/12/2015	$	85.14	Open Market
Relational Investors XX, L.P.	Sale	1,195	3/12/2015	$	84.98	Open Market
Relational Investors XXIII, L.P.	Sale	2,127	3/12/2015	$	85.61	Open Market
Relational Investors XXIII, L.P.	Sale	502	3/12/2015	$	85.14	Open Market
Relational Investors XXIII, L.P.	Sale	1,695	3/12/2015	$	84.98	Open Market
Relational Investors IX, L.P.	Sale	2,519	3/12/2015	$	85.61	Open Market
Relational Investors IX, L.P.	Sale	362	3/12/2015	$	85.61	Open Market
Relational Investors IX, L.P.	Sale	680	3/12/2015	$	85.14	Open Market
Relational Investors IX, L.P.	Sale	1,608	3/12/2015	$	84.98	Open Market
Relational Investors IX, L.P.	Sale	689	3/12/2015	$	84.98	Open Market
Relational Investors LLC	Sale	6,586	3/12/2015	$	85.61	Open Market
Relational Investors LLC	Sale	1,555	3/12/2015	$	85.14	Open Market
Relational Investors LLC	Sale	5,250	3/12/2015	$	84.98	Open Market
Relational Investors XXIV, L.P.	Sale	43	3/12/2015	$	85.61	Open Market
Relational Investors XXIV, L.P.	Sale	10	3/12/2015	$	85.14	Open Market
Relational Investors XXIV, L.P.	Sale	35	3/12/2015	$	84.98	Open Market
Relational Investors LLC	Sale	1,144	3/13/2015	$	83.07	Open Market
Relational Investors LLC	Sale	677	3/13/2015	$	83.20	Open Market
Relational Investors LLC	Sale	2,289	3/13/2015	$	83.07	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	5,012	3/13/2015	$	83.07	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,967	3/13/2015	$	83.20	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,558	3/13/2015	$	83.07	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	5,466	3/13/2015	$	83.07	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	564	3/13/2015	$	83.07	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,790	3/13/2015	$	83.07	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	3,171	3/13/2015	$	83.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	10,701	3/13/2015	$	83.07	Open Market
Relational Investors LLC	Sale	3,799	3/13/2015	$	83.07	Open Market
Relational Investors LLC	Sale	2,249	3/13/2015	$	83.20	Open Market
Relational Investors LLC	Sale	7,598	3/13/2015	$	83.07	Open Market
Relational Coast Partners, L.P.	Sale	1,243	3/13/2015	$	83.07	Open Market
Relational Coast Partners, L.P.	Sale	736	3/13/2015	$	83.20	Open Market
Relational Coast Partners, L.P.	Sale	2,486	3/13/2015	$	83.07	Open Market
Relational Fund Partners, L.P.	Sale	79	3/13/2015	$	83.07	Open Market
Relational Fund Partners, L.P.	Sale	40	3/13/2015	$	83.20	Open Market
Relational Fund Partners, L.P.	Sale	6	3/13/2015	$	83.20	Open Market
Relational Fund Partners, L.P.	Sale	158	3/13/2015	$	83.07	Open Market
RH Fund 1, L.P.	Sale	558	3/13/2015	$	83.07	Open Market
RH Fund 1, L.P.	Sale	330	3/13/2015	$	83.20	Open Market
RH Fund 1, L.P.	Sale	1,117	3/13/2015	$	83.07	Open Market
Relational Investors XV, L.P.	Sale	832	3/13/2015	$	83.07	Open Market
Relational Investors XV, L.P.	Sale	493	3/13/2015	$	83.20	Open Market
Relational Investors XV, L.P.	Sale	1,665	3/13/2015	$	83.07	Open Market
Relational Investors XVI, L.P.	Sale	412	3/13/2015	$	83.07	Open Market
Relational Investors XVI, L.P.	Sale	244	3/13/2015	$	83.20	Open Market
Relational Investors XVI, L.P.	Sale	612	3/13/2015	$	83.07	Open Market
Relational Investors XVI, L.P.	Sale	213	3/13/2015	$	83.07	Open Market
Relational Investors XX, L.P.	Sale	749	3/13/2015	$	83.07	Open Market
Relational Investors XX, L.P.	Sale	443	3/13/2015	$	83.20	Open Market
Relational Investors XX, L.P.	Sale	1,499	3/13/2015	$	83.07	Open Market
Relational Investors XXIII, L.P.	Sale	1,063	3/13/2015	$	83.07	Open Market
Relational Investors XXIII, L.P.	Sale	629	3/13/2015	$	83.20	Open Market
Relational Investors XXIII, L.P.	Sale	2,127	3/13/2015	$	83.07	Open Market
Relational Investors IX, L.P.	Sale	1,440	3/13/2015	$	83.07	Open Market
Relational Investors IX, L.P.	Sale	853	3/13/2015	$	83.20	Open Market
Relational Investors IX, L.P.	Sale	341	3/13/2015	$	83.07	Open Market
Relational Investors IX, L.P.	Sale	1,676	3/13/2015	$	83.07	Open Market
Relational Investors IX, L.P.	Sale	864	3/13/2015	$	83.07	Open Market
Relational Investors LLC	Sale	3,293	3/13/2015	$	83.07	Open Market
Relational Investors LLC	Sale	1,949	3/13/2015	$	83.20	Open Market
Relational Investors LLC	Sale	6,586	3/13/2015	$	83.07	Open Market
Relational Investors XXIV, L.P.	Sale	22	3/13/2015	$	83.07	Open Market
Relational Investors XXIV, L.P.	Sale	13	3/13/2015	$	83.20	Open Market
Relational Investors XXIV, L.P.	Sale	44	3/13/2015	$	83.07	Open Market