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	1,416		1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,031		1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	5,925		1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,153		1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	7,241		1/16/2015	$	45.79	Open Market
Relational Investors LLC	Sale	3,102		1/16/2015	$	45.79	Open Market
Relational Investors LLC	Sale	2,815		1/16/2015	$	45.79	Open Market
Relational Coast Partners, L.P.	Sale	497		1/16/2015	$	45.79	Open Market
Relational Coast Partners, L.P.	Sale	543		1/16/2015	$	45.79	Open Market
Relational Fund Partners, L.P.	Sale	54		1/16/2015	$	45.79	Open Market
Relational Fund Partners, L.P.	Sale	50		1/16/2015	$	45.79	Open Market
RH Fund 1, L.P.	Sale	456		1/16/2015	$	45.79	Open Market
RH Fund 1, L.P.	Sale	470		1/16/2015	$	45.79	Open Market
Relational Investors XV, L.P.	Sale	568		1/16/2015	$	45.79	Open Market
Relational Investors XV, L.P.	Sale	536		1/16/2015	$	45.79	Open Market
Relational Investors LLC	Sale	(294	)	1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	(554	)	1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	(815	)	1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	(1,075	)	1/16/2015	$	45.79	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	(1,336	)	1/16/2015	$	45.79	Open Market
Relational Investors LLC	Sale	(1,596	)	1/16/2015	$	45.79	Open Market
Relational Investors LLC	Sale	(1,857	)	1/16/2015	$	45.79	Open Market
Relational Coast Partners, L.P.	Sale	(2,117	)	1/16/2015	$	45.79	Open Market
Relational Coast Partners, L.P.	Sale	(2,378	)	1/16/2015	$	45.79	Open Market
Relational Investors IX, L.P.	Sale	400		1/16/2015	$	45.79	Open Market
Relational Investors LLC	Sale	3,287		1/16/2015	$	45.79	Open Market
Relational Investors XXIV, L.P.	Sale	63		1/16/2015	$	45.79	Open Market
Relational Investors XXIV, L.P.	Sale	109		1/16/2015	$	45.79	Open Market
Relational Investors LLC	Sale	10,715		1/20/2015	$	47.20	Open Market
Relational Investors LLC	Sale	8,189		1/20/2015	$	47.38	Open Market
Relational Investors LLC	Sale	815		1/20/2015	$	47.32	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	5,481		1/20/2015	$	47.20	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	7,092		1/20/2015	$	47.20	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	9,117		1/20/2015	$	47.20	Open Market

Relational Investors Mid-Cap Fund I, L.P.	Sale	30,920	1/20/2015	$	47.20	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	23,784	1/20/2015	$	47.38	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	16,427	1/20/2015	$	47.38	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,482	1/20/2015	$	47.32	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,521	1/20/2015	$	47.32	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	8,770	1/20/2015	$	47.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	9,958	1/20/2015	$	47.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	12,798	1/20/2015	$	47.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	39,458	1/20/2015	$	47.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	37,301	1/20/2015	$	47.38	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	16,957	1/20/2015	$	47.38	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	5,406	1/20/2015	$	47.32	Open Market
Relational Investors LLC	Sale	8,674	1/20/2015	$	47.20	Open Market
Relational Investors LLC	Sale	7,143	1/20/2015	$	47.20	Open Market
Relational Investors LLC	Sale	9,183	1/20/2015	$	47.20	Open Market
Relational Investors LLC	Sale	19,753	1/20/2015	$	47.20	Open Market
Relational Investors LLC	Sale	34,205	1/20/2015	$	47.38	Open Market
Relational Investors LLC	Sale	1,142	1/20/2015	$	47.32	Open Market
Relational Investors LLC	Sale	2,263	1/20/2015	$	47.32	Open Market
Relational Coast Partners, L.P.	Sale	1,438	1/20/2015	$	47.20	Open Market
Relational Coast Partners, L.P.	Sale	1,232	1/20/2015	$	47.20	Open Market
Relational Coast Partners, L.P.	Sale	1,583	1/20/2015	$	47.20	Open Market
Relational Coast Partners, L.P.	Sale	3,617	1/20/2015	$	47.20	Open Market
Relational Coast Partners, L.P.	Sale	5,886	1/20/2015	$	47.38	Open Market
Relational Coast Partners, L.P.	Sale	129	1/20/2015	$	47.38	Open Market
Relational Coast Partners, L.P.	Sale	598	1/20/2015	$	47.32	Open Market
Relational Fund Partners, L.P.	Sale	152	1/20/2015	$	47.20	Open Market
Relational Fund Partners, L.P.	Sale	125	1/20/2015	$	47.20	Open Market
Relational Fund Partners, L.P.	Sale	162	1/20/2015	$	47.20	Open Market
Relational Fund Partners, L.P.	Sale	353	1/20/2015	$	47.20	Open Market
Relational Fund Partners, L.P.	Sale	605	1/20/2015	$	47.38	Open Market
Relational Fund Partners, L.P.	Sale	14	1/20/2015	$	47.32	Open Market
Relational Fund Partners, L.P.	Sale	46	1/20/2015	$	47.32	Open Market
RH Fund 1, L.P.	Sale	1,305	1/20/2015	$	47.20	Open Market

RH Fund 1, L.P.	Sale	1,104	1/20/2015	$	47.20	Open Market
RH Fund 1, L.P.	Sale	1,419	1/20/2015	$	47.20	Open Market
RH Fund 1, L.P.	Sale	3,179	1/20/2015	$	47.20	Open Market
RH Fund 1, L.P.	Sale	5,336	1/20/2015	$	47.38	Open Market
RH Fund 1, L.P.	Sale	19	1/20/2015	$	47.38	Open Market
RH Fund 1, L.P.	Sale	533	1/20/2015	$	47.32	Open Market
Relational Investors XV, L.P.	Sale	1,599	1/20/2015	$	47.20	Open Market
Relational Investors XV, L.P.	Sale	1,328	1/20/2015	$	47.20	Open Market
Relational Investors XV, L.P.	Sale	1,707	1/20/2015	$	47.20	Open Market
Relational Investors XV, L.P.	Sale	3,721	1/20/2015	$	47.20	Open Market
Relational Investors XV, L.P.	Sale	6,386	1/20/2015	$	47.38	Open Market
Relational Investors XV, L.P.	Sale	137	1/20/2015	$	47.32	Open Market
Relational Investors XV, L.P.	Sale	498	1/20/2015	$	47.32	Open Market
Relational Investors XVI, L.P.	Sale	890	1/20/2015	$	47.20	Open Market
Relational Investors XVI, L.P.	Sale	696	1/20/2015	$	47.20	Open Market
Relational Investors XVI, L.P.	Sale	895	1/20/2015	$	47.20	Open Market
Relational Investors XVI, L.P.	Sale	1,765	1/20/2015	$	47.20	Open Market
Relational Investors XVI, L.P.	Sale	3,245	1/20/2015	$	47.38	Open Market
Relational Investors XVI, L.P.	Sale	323	1/20/2015	$	47.32	Open Market
Relational Investors XX, L.P.	Sale	1,405	1/20/2015	$	47.20	Open Market
Relational Investors XX, L.P.	Sale	1,186	1/20/2015	$	47.20	Open Market
Relational Investors XX, L.P.	Sale	1,525	1/20/2015	$	47.20	Open Market
Relational Investors XX, L.P.	Sale	3,415	1/20/2015	$	47.20	Open Market
Relational Investors XX, L.P.	Sale	5,740	1/20/2015	$	47.38	Open Market
Relational Investors XX, L.P.	Sale	16	1/20/2015	$	47.38	Open Market
Relational Investors XX, L.P.	Sale	573	1/20/2015	$	47.32	Open Market
Relational Investors XXIII, L.P.	Sale	1,966	1/20/2015	$	47.20	Open Market
Relational Investors XXIII, L.P.	Sale	1,661	1/20/2015	$	47.20	Open Market
Relational Investors XXIII, L.P.	Sale	2,136	1/20/2015	$	47.20	Open Market
Relational Investors XXIII, L.P.	Sale	4,785	1/20/2015	$	47.20	Open Market
Relational Investors XXIII, L.P.	Sale	8,031	1/20/2015	$	47.38	Open Market
Relational Investors XXIII, L.P.	Sale	31	1/20/2015	$	47.38	Open Market
Relational Investors XXIII, L.P.	Sale	802	1/20/2015	$	47.32	Open Market
Relational Investors IX, L.P.	Sale	2,087	1/20/2015	$	47.20	Open Market

Relational Investors IX, L.P.	Sale	1,153	1/20/2015	$	47.20	Open Market
Relational Investors IX, L.P.	Sale	494	1/20/2015	$	47.20	Open Market
Relational Investors IX, L.P.	Sale	2,117	1/20/2015	$	47.20	Open Market
Relational Investors IX, L.P.	Sale	4,245	1/20/2015	$	47.20	Open Market
Relational Investors IX, L.P.	Sale	4,650	1/20/2015	$	47.38	Open Market
Relational Investors IX, L.P.	Sale	751	1/20/2015	$	47.38	Open Market
Relational Investors IX, L.P.	Sale	2,315	1/20/2015	$	47.38	Open Market
Relational Investors IX, L.P.	Sale	746	1/20/2015	$	47.32	Open Market
Relational Investors IX, L.P.	Sale	22	1/20/2015	$	47.32	Open Market
Relational Investors LLC	Sale	24,861	1/20/2015	$	47.20	Open Market
Relational Investors LLC	Sale	19,002	1/20/2015	$	47.38	Open Market
Relational Investors LLC	Sale	1,891	1/20/2015	$	47.32	Open Market
Relational Investors XXIV, L.P.	Sale	202	1/20/2015	$	47.20	Open Market
Relational Investors XXIV, L.P.	Sale	193	1/20/2015	$	47.20	Open Market
Relational Investors XXIV, L.P.	Sale	249	1/20/2015	$	47.20	Open Market
Relational Investors XXIV, L.P.	Sale	658	1/20/2015	$	47.20	Open Market
Relational Investors XXIV, L.P.	Sale	838	1/20/2015	$	47.38	Open Market
Relational Investors XXIV, L.P.	Sale	157	1/20/2015	$	47.38	Open Market
Relational Investors XXIV, L.P.	Sale	99	1/20/2015	$	47.32	Open Market
Relational Investors LLC	Sale	10,025	1/21/2015	$	48.01	Open Market
Relational Investors LLC	Sale	2,047	1/21/2015	$	47.59	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	12,458	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	18,381	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	80	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	437	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,355	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,365	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	13,143	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	10,053	1/21/2015	$	47.59	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,172	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	19,617	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	25,791	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	120	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	615	1/21/2015	$	48.01	Open Market

Relational Investors Mid-Cap Fund II, L.P.	Sale	3,303	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	3,313	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	9,470	1/21/2015	$	48.01	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	13,567	1/21/2015	$	47.59	Open Market
Relational Investors LLC	Sale	16,783	1/21/2015	$	48.01	Open Market
Relational Investors LLC	Sale	14,081	1/21/2015	$	48.01	Open Market
Relational Investors LLC	Sale	11,004	1/21/2015	$	48.01	Open Market
Relational Investors LLC	Sale	7,510	1/21/2015	$	47.59	Open Market
Relational Investors LLC	Sale	81	1/21/2015	$	47.59	Open Market
Relational Investors LLC	Sale	440	1/21/2015	$	47.59	Open Market
Relational Investors LLC	Sale	520	1/21/2015	$	47.59	Open Market
Relational Coast Partners, L.P.	Sale	2,558	1/21/2015	$	48.01	Open Market
Relational Coast Partners, L.P.	Sale	2,428	1/21/2015	$	48.01	Open Market
Relational Coast Partners, L.P.	Sale	2,377	1/21/2015	$	48.01	Open Market
Relational Coast Partners, L.P.	Sale	816	1/21/2015	$	47.59	Open Market
Relational Coast Partners, L.P.	Sale	14	1/21/2015	$	47.59	Open Market
Relational Coast Partners, L.P.	Sale	76	1/21/2015	$	47.59	Open Market
Relational Coast Partners, L.P.	Sale	409	1/21/2015	$	47.59	Open Market
Relational Coast Partners, L.P.	Sale	188	1/21/2015	$	47.59	Open Market
Relational Fund Partners, L.P.	Sale	290	1/21/2015	$	48.01	Open Market
Relational Fund Partners, L.P.	Sale	248	1/21/2015	$	48.01	Open Market
Relational Fund Partners, L.P.	Sale	204	1/21/2015	$	48.01	Open Market
Relational Fund Partners, L.P.	Sale	122	1/21/2015	$	47.59	Open Market
Relational Fund Partners, L.P.	Sale	1	1/21/2015	$	47.59	Open Market
Relational Fund Partners, L.P.	Sale	7	1/21/2015	$	47.59	Open Market
Relational Fund Partners, L.P.	Sale	21	1/21/2015	$	47.59	Open Market
RH Fund 1, L.P.	Sale	2,391	1/21/2015	$	48.01	Open Market
RH Fund 1, L.P.	Sale	2,176	1/21/2015	$	48.01	Open Market
RH Fund 1, L.P.	Sale	1,988	1/21/2015	$	48.01	Open Market
RH Fund 1, L.P.	Sale	873	1/21/2015	$	47.59	Open Market
RH Fund 1, L.P.	Sale	12	1/21/2015	$	47.59	Open Market
RH Fund 1, L.P.	Sale	68	1/21/2015	$	47.59	Open Market
RH Fund 1, L.P.	Sale	366	1/21/2015	$	47.59	Open Market
RH Fund 1, L.P.	Sale	20	1/21/2015	$	47.59	Open Market

Relational Investors XV, L.P.	Sale	3,043	1/21/2015	$	48.01	Open Market
Relational Investors XV, L.P.	Sale	2,618	1/21/2015	$	48.01	Open Market
Relational Investors XV, L.P.	Sale	2,156	1/21/2015	$	48.01	Open Market
Relational Investors XV, L.P.	Sale	1,286	1/21/2015	$	47.59	Open Market
Relational Investors XV, L.P.	Sale	15	1/21/2015	$	47.59	Open Market
Relational Investors XV, L.P.	Sale	81	1/21/2015	$	47.59	Open Market
Relational Investors XV, L.P.	Sale	214	1/21/2015	$	47.59	Open Market
Relational Investors XVI, L.P.	Sale	39	1/21/2015	$	48.01	Open Market
Relational Investors XVI, L.P.	Sale	1,857	1/21/2015	$	48.01	Open Market
Relational Investors XVI, L.P.	Sale	1,372	1/21/2015	$	48.01	Open Market
Relational Investors XVI, L.P.	Sale	704	1/21/2015	$	48.01	Open Market
Relational Investors XVI, L.P.	Sale	811	1/21/2015	$	47.59	Open Market
Relational Investors XX, L.P.	Sale	2,575	1/21/2015	$	48.01	Open Market
Relational Investors XX, L.P.	Sale	2,340	1/21/2015	$	48.01	Open Market
Relational Investors XX, L.P.	Sale	2,130	1/21/2015	$	48.01	Open Market
Relational Investors XX, L.P.	Sale	946	1/21/2015	$	47.59	Open Market
Relational Investors XX, L.P.	Sale	13	1/21/2015	$	47.59	Open Market
Relational Investors XX, L.P.	Sale	73	1/21/2015	$	47.59	Open Market
Relational Investors XX, L.P.	Sale	394	1/21/2015	$	47.59	Open Market
Relational Investors XX, L.P.	Sale	13	1/21/2015	$	47.59	Open Market
Relational Investors XXIII, L.P.	Sale	3,597	1/21/2015	$	48.01	Open Market
Relational Investors XXIII, L.P.	Sale	3,275	1/21/2015	$	48.01	Open Market
Relational Investors XXIII, L.P.	Sale	2,997	1/21/2015	$	48.01	Open Market
Relational Investors XXIII, L.P.	Sale	1,309	1/21/2015	$	47.59	Open Market
Relational Investors XXIII, L.P.	Sale	18	1/21/2015	$	47.59	Open Market
Relational Investors XXIII, L.P.	Sale	105	1/21/2015	$	47.59	Open Market
Relational Investors XXIII, L.P.	Sale	551	1/21/2015	$	47.59	Open Market
Relational Investors XXIII, L.P.	Sale	32	1/21/2015	$	47.59	Open Market
Relational Investors IX, L.P.	Sale	4,370	1/21/2015	$	48.01	Open Market
Relational Investors IX, L.P.	Sale	2,242	1/21/2015	$	48.01	Open Market
Relational Investors IX, L.P.	Sale	1,005	1/21/2015	$	48.01	Open Market
Relational Investors IX, L.P.	Sale	1,829	1/21/2015	$	48.01	Open Market
Relational Investors IX, L.P.	Sale	1,929	1/21/2015	$	47.59	Open Market
Relational Investors LLC	Sale	23,259	1/21/2015	$	48.01	Open Market

Relational Investors LLC	Sale	4,750	1/21/2015	$	47.59	Open Market
Relational Investors XXIV, L.P.	Sale	261	1/21/2015	$	48.01	Open Market
Relational Investors XXIV, L.P.	Sale	382	1/21/2015	$	48.01	Open Market
Relational Investors XXIV, L.P.	Sale	502	1/21/2015	$	48.01	Open Market
Relational Investors XXIV, L.P.	Sale	2	1/21/2015	$	48.01	Open Market
Relational Investors XXIV, L.P.	Sale	11	1/21/2015	$	48.01	Open Market
Relational Investors XXIV, L.P.	Sale	61	1/21/2015	$	48.01	Open Market
Relational Investors XXIV, L.P.	Sale	6	1/21/2015	$	47.59	Open Market
Relational Investors XXIV, L.P.	Sale	64	1/21/2015	$	47.59	Open Market
Relational Investors XXIV, L.P.	Sale	179	1/21/2015	$	47.59	Open Market
Relational Investors LLC	Sale	7,742	1/22/2015	$	48.47	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,301	1/22/2015	$	48.47	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	33,704	1/22/2015	$	48.47	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	15,516	1/22/2015	$	48.47	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	35,736	1/22/2015	$	48.47	Open Market
Relational Investors LLC	Sale	1,853	1/22/2015	$	48.47	Open Market
Relational Investors LLC	Sale	2,381	1/22/2015	$	48.47	Open Market
Relational Investors LLC	Sale	27,696	1/22/2015	$	48.47	Open Market
Relational Investors LLC	Sale	399	1/22/2015	$	48.47	Open Market
Relational Coast Partners, L.P.	Sale	222	1/22/2015	$	48.47	Open Market
Relational Coast Partners, L.P.	Sale	4,780	1/22/2015	$	48.47	Open Market
Relational Coast Partners, L.P.	Sale	685	1/22/2015	$	48.47	Open Market
Relational Fund Partners, L.P.	Sale	20	1/22/2015	$	48.47	Open Market
Relational Fund Partners, L.P.	Sale	43	1/22/2015	$	48.47	Open Market
Relational Fund Partners, L.P.	Sale	491	1/22/2015	$	48.47	Open Market
Relational Fund Partners, L.P.	Sale	21	1/22/2015	$	48.47	Open Market
RH Fund 1, L.P.	Sale	350	1/22/2015	$	48.47	Open Market
RH Fund 1, L.P.	Sale	4,282	1/22/2015	$	48.47	Open Market
RH Fund 1, L.P.	Sale	431	1/22/2015	$	48.47	Open Market
Relational Investors XV, L.P.	Sale	227	1/22/2015	$	48.47	Open Market
Relational Investors XV, L.P.	Sale	442	1/22/2015	$	48.47	Open Market
Relational Investors XV, L.P.	Sale	5,152	1/22/2015	$	48.47	Open Market
Relational Investors XV, L.P.	Sale	216	1/22/2015	$	48.47	Open Market
Relational Investors XVI, L.P.	Sale	290	1/22/2015	$	48.47	Open Market

Relational Investors XVI, L.P.	Sale	7	1/22/2015	$	48.47	Open Market
Relational Investors XVI, L.P.	Sale	43	1/22/2015	$	48.47	Open Market
Relational Investors XVI, L.P.	Sale	231	1/22/2015	$	48.47	Open Market
Relational Investors XVI, L.P.	Sale	232	1/22/2015	$	48.47	Open Market
Relational Investors XVI, L.P.	Sale	2,266	1/22/2015	$	48.47	Open Market
Relational Investors XX, L.P.	Sale	382	1/22/2015	$	48.47	Open Market
Relational Investors XX, L.P.	Sale	4,605	1/22/2015	$	48.47	Open Market
Relational Investors XX, L.P.	Sale	454	1/22/2015	$	48.47	Open Market
Relational Investors XXIII, L.P.	Sale	521	1/22/2015	$	48.47	Open Market
Relational Investors XXIII, L.P.	Sale	6,442	1/22/2015	$	48.47	Open Market
Relational Investors XXIII, L.P.	Sale	659	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	512	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	18	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	101	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	547	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	551	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	3,377	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	1,095	1/22/2015	$	48.47	Open Market
Relational Investors IX, L.P.	Sale	1,093	1/22/2015	$	48.47	Open Market
Relational Investors LLC	Sale	17,960	1/22/2015	$	48.47	Open Market
Relational Investors XXIV, L.P.	Sale	574	1/22/2015	$	48.47	Open Market
Relational Investors XXIV, L.P.	Sale	369	1/22/2015	$	48.47	Open Market
Relational Investors LLC	Sale	3,548	1/23/2015	$	48.92	Open Market
Relational Investors LLC	Sale	4,381	1/23/2015	$	48.99	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	13,766	1/23/2015	$	48.92	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	3,658	1/23/2015	$	48.92	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	212	1/23/2015	$	48.99	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	13,946	1/23/2015	$	48.99	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	7,355	1/23/2015	$	48.99	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	23,516	1/23/2015	$	48.92	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	7,366	1/23/2015	$	48.99	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	5,439	1/23/2015	$	48.99	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	16,225	1/23/2015	$	48.99	Open Market
Relational Investors LLC	Sale	14,822	1/23/2015	$	48.92	Open Market

Relational Investors LLC	Sale	18,299	1/23/2015	$	48.99	Open Market
Relational Coast Partners, L.P.	Sale	2,606	1/23/2015	$	48.92	Open Market
Relational Coast Partners, L.P.	Sale	3,218	1/23/2015	$	48.99	Open Market
Relational Fund Partners, L.P.	Sale	262	1/23/2015	$	48.92	Open Market
Relational Fund Partners, L.P.	Sale	324	1/23/2015	$	48.99	Open Market
RH Fund 1, L.P.	Sale	2,320	1/23/2015	$	48.92	Open Market
RH Fund 1, L.P.	Sale	2,865	1/23/2015	$	48.99	Open Market
Relational Investors XV, L.P.	Sale	2,767	1/23/2015	$	48.92	Open Market
Relational Investors XV, L.P.	Sale	3,416	1/23/2015	$	48.99	Open Market
Relational Investors XVI, L.P.	Sale	437	1/23/2015	$	48.92	Open Market
Relational Investors XVI, L.P.	Sale	969	1/23/2015	$	48.92	Open Market
Relational Investors XVI, L.P.	Sale	1,736	1/23/2015	$	48.99	Open Market
Relational Investors XX, L.P.	Sale	2,494	1/23/2015	$	48.92	Open Market
Relational Investors XX, L.P.	Sale	3,079	1/23/2015	$	48.99	Open Market
Relational Investors XXIII, L.P.	Sale	3,493	1/23/2015	$	48.92	Open Market
Relational Investors XXIII, L.P.	Sale	4,313	1/23/2015	$	48.99	Open Market
Relational Investors IX, L.P.	Sale	824	1/23/2015	$	48.92	Open Market
Relational Investors IX, L.P.	Sale	2,519	1/23/2015	$	48.92	Open Market
Relational Investors IX, L.P.	Sale	4,128	1/23/2015	$	48.99	Open Market
Relational Investors LLC	Sale	8,234	1/23/2015	$	48.92	Open Market
Relational Investors LLC	Sale	10,166	1/23/2015	$	48.99	Open Market
Relational Investors XXIV, L.P.	Sale	431	1/23/2015	$	48.92	Open Market
Relational Investors XXIV, L.P.	Sale	497	1/23/2015	$	48.99	Open Market
Relational Investors XXIV, L.P.	Sale	35	1/23/2015	$	48.99	Open Market

Relational Investors LLC	Sale	4,728	1/26/2015	$	48.66	Open Market
Relational Investors LLC	Sale	763	1/26/2015	$	48.74	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	13,893	1/26/2015	$	48.66	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	9,322	1/26/2015	$	48.66	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	3,746	1/26/2015	$	48.74	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	3,351	1/26/2015	$	48.66	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	27,976	1/26/2015	$	48.66	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,845	1/26/2015	$	48.74	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	3,216	1/26/2015	$	48.74	Open Market
Relational Investors LLC	Sale	14,166	1/26/2015	$	48.66	Open Market
Relational Investors LLC	Sale	3,888	1/26/2015	$	48.66	Open Market
Relational Investors LLC	Sale	1,694	1/26/2015	$	48.66	Open Market
Relational Investors LLC	Sale	3,186	1/26/2015	$	48.74	Open Market
Relational Coast Partners, L.P.	Sale	1,716	1/26/2015	$	48.66	Open Market
Relational Coast Partners, L.P.	Sale	670	1/26/2015	$	48.66	Open Market
Relational Coast Partners, L.P.	Sale	1,086	1/26/2015	$	48.66	Open Market
Relational Coast Partners, L.P.	Sale	560	1/26/2015	$	48.74	Open Market
Relational Fund Partners, L.P.	Sale	233	1/26/2015	$	48.66	Open Market
Relational Fund Partners, L.P.	Sale	68	1/26/2015	$	48.66	Open Market
Relational Fund Partners, L.P.	Sale	48	1/26/2015	$	48.66	Open Market
Relational Fund Partners, L.P.	Sale	56	1/26/2015	$	48.74	Open Market
RH Fund 1, L.P.	Sale	1,754	1/26/2015	$	48.66	Open Market
RH Fund 1, L.P.	Sale	600	1/26/2015	$	48.66	Open Market
RH Fund 1, L.P.	Sale	738	1/26/2015	$	48.66	Open Market
RH Fund 1, L.P.	Sale	498	1/26/2015	$	48.74	Open Market
Relational Investors XV, L.P.	Sale	2,492	1/26/2015	$	48.66	Open Market
Relational Investors XV, L.P.	Sale	724	1/26/2015	$	48.66	Open Market
Relational Investors XV, L.P.	Sale	470	1/26/2015	$	48.66	Open Market
Relational Investors XV, L.P.	Sale	594	1/26/2015	$	48.74	Open Market
Relational Investors XVI, L.P.	Sale	1,873	1/26/2015	$	48.66	Open Market
Relational Investors XVI, L.P.	Sale	68	1/26/2015	$	48.74	Open Market
Relational Investors XVI, L.P.	Sale	234	1/26/2015	$	48.74	Open Market
Relational Investors XX, L.P.	Sale	1,896	1/26/2015	$	48.66	Open Market
Relational Investors XX, L.P.	Sale	646	1/26/2015	$	48.66	Open Market
Relational Investors XX, L.P.	Sale	781	1/26/2015	$	48.66	Open Market
Relational Investors XX, L.P.	Sale	536	1/26/2015	$	48.74	Open Market
Relational Investors XXIII, L.P.	Sale	2,627	1/26/2015	$	48.66	Open Market
Relational Investors XXIII, L.P.	Sale	904	1/26/2015	$	48.66	Open Market
Relational Investors XXIII, L.P.	Sale	1,123	1/26/2015	$	48.66	Open Market
Relational Investors XXIII, L.P.	Sale	751	1/26/2015	$	48.74	Open Market
Relational Investors IX, L.P.	Sale	1,048	1/26/2015	$	48.66	Open Market
Relational Investors IX, L.P.	Sale	3,298	1/26/2015	$	48.66	Open Market
Relational Investors IX, L.P.	Sale	109	1/26/2015	$	48.66	Open Market
Relational Investors IX, L.P.	Sale	718	1/26/2015	$	48.74	Open Market
Relational Investors LLC	Sale	10,970	1/26/2015	$	48.66	Open Market
Relational Investors LLC	Sale	1,770	1/26/2015	$	48.74	Open Market
Relational Investors XXIV, L.P.	Sale	70	1/26/2015	$	48.66	Open Market

Relational Investors XXIV, L.P.	Sale	381	1/26/2015	$	48.66	Open Market
Relational Investors XXIV, L.P.	Sale	124	1/26/2015	$	48.66	Open Market
Relational Investors XXIV, L.P.	Sale	92	1/26/2015	$	48.74	Open Market