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	645	3/16/2015	$	84.09	Open Market
Relational Investors LLC	Sale	2,289	3/16/2015	$	83.92	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,827	3/16/2015	$	84.09	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	9,532	3/16/2015	$	83.92	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	492	3/16/2015	$	83.92	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	3,024	3/16/2015	$	84.09	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	10,697	3/16/2015	$	83.92	Open Market
Relational Investors LLC	Sale	2,142	3/16/2015	$	84.09	Open Market
Relational Investors LLC	Sale	7,598	3/16/2015	$	83.92	Open Market
Relational Coast Partners, L.P.	Sale	701	3/16/2015	$	84.09	Open Market
Relational Coast Partners, L.P.	Sale	2,487	3/16/2015	$	83.92	Open Market
Relational Fund Partners, L.P.	Sale	44	3/16/2015	$	84.09	Open Market
Relational Fund Partners, L.P.	Sale	158	3/16/2015	$	83.92	Open Market
RH Fund 1, L.P.	Sale	315	3/16/2015	$	84.09	Open Market
RH Fund 1, L.P.	Sale	1,118	3/16/2015	$	83.92	Open Market
Relational Investors XV, L.P.	Sale	469	3/16/2015	$	84.09	Open Market
Relational Investors XV, L.P.	Sale	1,665	3/16/2015	$	83.92	Open Market
Relational Investors XVI, L.P.	Sale	232	3/16/2015	$	84.09	Open Market
Relational Investors XVI, L.P.	Sale	531	3/16/2015	$	83.92	Open Market
Relational Investors XVI, L.P.	Sale	294	3/16/2015	$	83.92	Open Market
Relational Investors XX, L.P.	Sale	423	3/16/2015	$	84.09	Open Market
Relational Investors XX, L.P.	Sale	1,010	3/16/2015	$	83.92	Open Market
Relational Investors XX, L.P.	Sale	490	3/16/2015	$	83.92	Open Market
Relational Investors XXIII, L.P.	Sale	599	3/16/2015	$	84.09	Open Market
Relational Investors XXIII, L.P.	Sale	1,386	3/16/2015	$	83.92	Open Market
Relational Investors XXIII, L.P.	Sale	741	3/16/2015	$	83.92	Open Market
Relational Investors IX, L.P.	Sale	20	3/16/2015	$	84.10	Open Market
Relational Investors IX, L.P.	Sale	792	3/16/2015	$	84.09	Open Market
Relational Investors IX, L.P.	Sale	2,017	3/16/2015	$	83.92	Open Market
Relational Investors IX, L.P.	Sale	865	3/16/2015	$	83.92	Open Market
Relational Investors LLC	Sale	1,857	3/16/2015	$	84.09	Open Market
Relational Investors LLC	Sale	6,586	3/16/2015	$	83.92	Open Market
Relational Investors XXIV, L.P.	Sale	12	3/16/2015	$	84.10	Open Market
Relational Investors XXIV, L.P.	Sale	44	3/16/2015	$	83.92	Open Market
Relational Investors LLC	Sale	1,077	3/17/2015	$	83.50	Open Market
Relational Investors LLC	Sale	2,290	3/17/2015	$	83.51	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,716	3/17/2015	$	83.50	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	6,587	3/17/2015	$	83.51	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	3,437	3/17/2015	$	83.51	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	5,035	3/17/2015	$	83.50	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	7,823	3/17/2015	$	83.51	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,870	3/17/2015	$	83.51	Open Market
Relational Investors LLC	Sale	3,575	3/17/2015	$	83.50	Open Market
Relational Investors LLC	Sale	7,598	3/17/2015	$	83.51	Open Market
Relational Coast Partners, L.P.	Sale	1,170	3/17/2015	$	83.50	Open Market
Relational Coast Partners, L.P.	Sale	2,487	3/17/2015	$	83.51	Open Market
Relational Fund Partners, L.P.	Sale	74	3/17/2015	$	83.50	Open Market

Relational Fund Partners, L.P.	Sale	158	3/17/2015	$	83.51	Open Market
RH Fund 1, L.P.	Sale	526	3/17/2015	$	83.50	Open Market
RH Fund 1, L.P.	Sale	1,118	3/17/2015	$	83.51	Open Market
Relational Investors XV, L.P.	Sale	783	3/17/2015	$	83.50	Open Market
Relational Investors XV, L.P.	Sale	1,666	3/17/2015	$	83.51	Open Market
Relational Investors XVI, L.P.	Sale	388	3/17/2015	$	83.50	Open Market
Relational Investors XVI, L.P.	Sale	645	3/17/2015	$	83.51	Open Market
Relational Investors XVI, L.P.	Sale	181	3/17/2015	$	83.51	Open Market
Relational Investors XX, L.P.	Sale	706	3/17/2015	$	83.50	Open Market
Relational Investors XX, L.P.	Sale	1,500	3/17/2015	$	83.51	Open Market
Relational Investors XXIII, L.P.	Sale	1,001	3/17/2015	$	83.50	Open Market
Relational Investors XXIII, L.P.	Sale	2,127	3/17/2015	$	83.51	Open Market
Relational Investors IX, L.P.	Sale	1,356	3/17/2015	$	83.50	Open Market
Relational Investors IX, L.P.	Sale	616	3/17/2015	$	83.51	Open Market
Relational Investors IX, L.P.	Sale	1,401	3/17/2015	$	83.51	Open Market
Relational Investors IX, L.P.	Sale	865	3/17/2015	$	83.51	Open Market
Relational Investors LLC	Sale	3,099	3/17/2015	$	83.50	Open Market
Relational Investors LLC	Sale	6,587	3/17/2015	$	83.51	Open Market
Relational Investors XXIV, L.P.	Sale	20	3/17/2015	$	83.50	Open Market
Relational Investors XXIV, L.P.	Sale	44	3/17/2015	$	83.51	Open Market
Relational Investors LLC	Sale	4,580	3/18/2015	$	84.20	Open Market
Relational Investors LLC	Sale	916	3/18/2015	$	83.18	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	20,050	3/18/2015	$	84.20	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,010	3/18/2015	$	83.18	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,256	3/18/2015	$	84.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,127	3/18/2015	$	84.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	14,994	3/18/2015	$	84.20	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,281	3/18/2015	$	83.18	Open Market
Relational Investors LLC	Sale	15,197	3/18/2015	$	84.20	Open Market
Relational Investors LLC	Sale	3,039	3/18/2015	$	83.18	Open Market
Relational Coast Partners, L.P.	Sale	4,974	3/18/2015	$	84.20	Open Market
Relational Coast Partners, L.P.	Sale	325	3/18/2015	$	83.18	Open Market
Relational Coast Partners, L.P.	Sale	669	3/18/2015	$	83.18	Open Market
Relational Fund Partners, L.P.	Sale	317	3/18/2015	$	84.20	Open Market
Relational Fund Partners, L.P.	Sale	63	3/18/2015	$	83.18	Open Market
RH Fund 1, L.P.	Sale	2,092	3/18/2015	$	84.20	Open Market
RH Fund 1, L.P.	Sale	145	3/18/2015	$	84.20	Open Market
RH Fund 1, L.P.	Sale	447	3/18/2015	$	83.18	Open Market
Relational Investors XV, L.P.	Sale	3,333	3/18/2015	$	84.20	Open Market
Relational Investors XV, L.P.	Sale	666	3/18/2015	$	83.18	Open Market
Relational Investors XVI, L.P.	Sale	1,652	3/18/2015	$	84.20	Open Market
Relational Investors XVI, L.P.	Sale	330	3/18/2015	$	83.18	Open Market
Relational Investors XX, L.P.	Sale	1,033	3/18/2015	$	84.20	Open Market
Relational Investors XX, L.P.	Sale	1,004	3/18/2015	$	84.20	Open Market
Relational Investors XX, L.P.	Sale	426	3/18/2015	$	84.20	Open Market
Relational Investors XX, L.P.	Sale	538	3/18/2015	$	84.20	Open Market
Relational Investors XX, L.P.	Sale	600	3/18/2015	$	83.18	Open Market

Relational Investors XXIII, L.P.	Sale	1,442	3/18/2015	$	84.20	Open Market
Relational Investors XXIII, L.P.	Sale	1,430	3/18/2015	$	84.20	Open Market
Relational Investors XXIII, L.P.	Sale	606	3/18/2015	$	84.20	Open Market
Relational Investors XXIII, L.P.	Sale	777	3/18/2015	$	84.20	Open Market
Relational Investors XXIII, L.P.	Sale	851	3/18/2015	$	83.18	Open Market
Relational Investors IX, L.P.	Sale	4,035	3/18/2015	$	84.20	Open Market
Relational Investors IX, L.P.	Sale	1,729	3/18/2015	$	84.20	Open Market
Relational Investors IX, L.P.	Sale	1,152	3/18/2015	$	83.18	Open Market
Relational Investors LLC	Sale	13,174	3/18/2015	$	84.20	Open Market
Relational Investors LLC	Sale	2,634	3/18/2015	$	83.18	Open Market
Relational Investors XXIV, L.P.	Sale	89	3/18/2015	$	84.20	Open Market
Relational Investors XXIV, L.P.	Sale	17	3/18/2015	$	83.18	Open Market
Relational Investors LLC	Sale	354	3/19/2015	$	84.89	Open Market
Relational Investors LLC	Sale	927	3/19/2015	$	84.66	Open Market
Relational Investors LLC	Sale	3,039	3/19/2015	$	84.52	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,543	3/19/2015	$	84.89	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	4,062	3/19/2015	$	84.66	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	13,305	3/19/2015	$	84.52	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,645	3/19/2015	$	84.89	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,326	3/19/2015	$	84.66	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	6,820	3/19/2015	$	84.52	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	5,389	3/19/2015	$	84.52	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	169	3/19/2015	$	84.52	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,795	3/19/2015	$	84.52	Open Market
Relational Investors LLC	Sale	1,170	3/19/2015	$	84.89	Open Market
Relational Investors LLC	Sale	3,079	3/19/2015	$	84.66	Open Market
Relational Investors LLC	Sale	4,903	3/19/2015	$	84.52	Open Market
Relational Investors LLC	Sale	5,181	3/19/2015	$	84.52	Open Market
Relational Coast Partners, L.P.	Sale	383	3/19/2015	$	84.89	Open Market
Relational Coast Partners, L.P.	Sale	1,007	3/19/2015	$	84.66	Open Market
Relational Coast Partners, L.P.	Sale	3,303	3/19/2015	$	84.52	Open Market
Relational Fund Partners, L.P.	Sale	24	3/19/2015	$	84.89	Open Market
Relational Fund Partners, L.P.	Sale	66	3/19/2015	$	84.66	Open Market
Relational Fund Partners, L.P.	Sale	110	3/19/2015	$	84.52	Open Market
Relational Fund Partners, L.P.	Sale	101	3/19/2015	$	84.52	Open Market
RH Fund 1, L.P.	Sale	172	3/19/2015	$	84.89	Open Market
RH Fund 1, L.P.	Sale	453	3/19/2015	$	84.66	Open Market
RH Fund 1, L.P.	Sale	1,486	3/19/2015	$	84.52	Open Market
Relational Investors XV, L.P.	Sale	256	3/19/2015	$	84.89	Open Market
Relational Investors XV, L.P.	Sale	397	3/19/2015	$	84.66	Open Market
Relational Investors XV, L.P.	Sale	278	3/19/2015	$	84.66	Open Market
Relational Investors XV, L.P.	Sale	2,213	3/19/2015	$	84.52	Open Market
Relational Investors XVI, L.P.	Sale	127	3/19/2015	$	84.89	Open Market
Relational Investors XVI, L.P.	Sale	336	3/19/2015	$	84.66	Open Market
Relational Investors XVI, L.P.	Sale	1,097	3/19/2015	$	84.52	Open Market
Relational Investors XX, L.P.	Sale	231	3/19/2015	$	84.89	Open Market
Relational Investors XX, L.P.	Sale	313	3/19/2015	$	84.66	Open Market

Relational Investors XX, L.P.	Sale	294	3/19/2015	$	84.66	Open Market
Relational Investors XX, L.P.	Sale	1,992	3/19/2015	$	84.52	Open Market
Relational Investors XX, L.P.	Sale	1	3/19/2015	$	84.52	Open Market
Relational Investors XXIII, L.P.	Sale	329	3/19/2015	$	84.89	Open Market
Relational Investors XXIII, L.P.	Sale	451	3/19/2015	$	84.66	Open Market
Relational Investors XXIII, L.P.	Sale	410	3/19/2015	$	84.66	Open Market
Relational Investors XXIII, L.P.	Sale	2,824	3/19/2015	$	84.52	Open Market
Relational Investors IX, L.P.	Sale	446	3/19/2015	$	84.89	Open Market
Relational Investors IX, L.P.	Sale	1,167	3/19/2015	$	84.66	Open Market
Relational Investors IX, L.P.	Sale	2,678	3/19/2015	$	84.52	Open Market
Relational Investors IX, L.P.	Sale	1,148	3/19/2015	$	84.52	Open Market
Relational Investors LLC	Sale	1,014	3/19/2015	$	84.89	Open Market
Relational Investors LLC	Sale	2,668	3/19/2015	$	84.66	Open Market
Relational Investors LLC	Sale	8,744	3/19/2015	$	84.52	Open Market
Relational Investors XXIV, L.P.	Sale	6	3/19/2015	$	84.89	Open Market
Relational Investors XXIV, L.P.	Sale	18	3/19/2015	$	84.66	Open Market
Relational Investors XXIV, L.P.	Sale	61	3/19/2015	$	84.52	Open Market
Relational Investors LLC	Sale	2,059	4/15/2015	$	85.62	Open Market
Relational Investors LLC	Sale	410	4/15/2015	$	85.62	Open Market
Relational Investors LLC	Sale	36	4/15/2015	$	85.74	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	967	4/15/2015	$	85.62	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	8,054	4/15/2015	$	85.62	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,799	4/15/2015	$	85.62	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	160	4/15/2015	$	85.74	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,067	4/15/2015	$	85.62	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,955	4/15/2015	$	85.62	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,617	4/15/2015	$	85.62	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,927	4/15/2015	$	85.62	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	178	4/15/2015	$	85.74	Open Market
Relational Investors LLC	Sale	6,837	4/15/2015	$	85.62	Open Market
Relational Investors LLC	Sale	1,363	4/15/2015	$	85.62	Open Market
Relational Investors LLC	Sale	121	4/15/2015	$	85.74	Open Market
Relational Coast Partners, L.P.	Sale	2,237	4/15/2015	$	85.62	Open Market
Relational Coast Partners, L.P.	Sale	446	4/15/2015	$	85.62	Open Market
Relational Coast Partners, L.P.	Sale	39	4/15/2015	$	85.74	Open Market
Relational Fund Partners, L.P.	Sale	141	4/15/2015	$	85.62	Open Market
Relational Fund Partners, L.P.	Sale	28	4/15/2015	$	85.62	Open Market
Relational Fund Partners, L.P.	Sale	2	4/15/2015	$	85.74	Open Market
RH Fund 1, L.P.	Sale	1,005	4/15/2015	$	85.62	Open Market
RH Fund 1, L.P.	Sale	200	4/15/2015	$	85.62	Open Market
RH Fund 1, L.P.	Sale	17	4/15/2015	$	85.74	Open Market
Relational Investors XV, L.P.	Sale	1,498	4/15/2015	$	85.62	Open Market
Relational Investors XV, L.P.	Sale	210	4/15/2015	$	85.62	Open Market
Relational Investors XV, L.P.	Sale	88	4/15/2015	$	85.62	Open Market
Relational Investors XV, L.P.	Sale	26	4/15/2015	$	85.74	Open Market
Relational Investors XVI, L.P.	Sale	742	4/15/2015	$	85.62	Open Market
Relational Investors XVI, L.P.	Sale	148	4/15/2015	$	85.62	Open Market

Relational Investors XVI, L.P.	Sale	13	4/15/2015	$	85.74	Open Market
Relational Investors XX, L.P.	Sale	1,349	4/15/2015	$	85.62	Open Market
Relational Investors XX, L.P.	Sale	269	4/15/2015	$	85.62	Open Market
Relational Investors XX, L.P.	Sale	23	4/15/2015	$	85.74	Open Market
Relational Investors XXIII, L.P.	Sale	39	4/15/2015	$	85.62	Open Market
Relational Investors XXIII, L.P.	Sale	1,874	4/15/2015	$	85.62	Open Market
Relational Investors XXIII, L.P.	Sale	381	4/15/2015	$	85.62	Open Market
Relational Investors XXIII, L.P.	Sale	34	4/15/2015	$	85.74	Open Market
Relational Investors IX, L.P.	Sale	1,254	4/15/2015	$	85.62	Open Market
Relational Investors IX, L.P.	Sale	561	4/15/2015	$	85.62	Open Market
Relational Investors IX, L.P.	Sale	778	4/15/2015	$	85.62	Open Market
Relational Investors IX, L.P.	Sale	517	4/15/2015	$	85.62	Open Market
Relational Investors IX, L.P.	Sale	46	4/15/2015	$	85.74	Open Market
Relational Investors LLC	Sale	5,927	4/15/2015	$	85.62	Open Market
Relational Investors LLC	Sale	1,182	4/15/2015	$	85.62	Open Market
Relational Investors LLC	Sale	105	4/15/2015	$	85.74	Open Market
Relational Investors XXIV, L.P.	Sale	39	4/15/2015	$	85.62	Open Market
Relational Investors XXIV, L.P.	Sale	7	4/15/2015	$	85.61	Open Market
Relational Investors LLC	Sale	1,780	4/16/2015	$	85.57	Open Market
Relational Investors LLC	Sale	457	4/16/2015	$	85.63	Open Market
Relational Investors LLC	Sale	544	4/16/2015	$	85.67	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	7,795	4/16/2015	$	85.57	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,004	4/16/2015	$	85.63	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,385	4/16/2015	$	85.67	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	4,474	4/16/2015	$	85.57	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	3,855	4/16/2015	$	85.57	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,146	4/16/2015	$	85.63	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	131	4/16/2015	$	85.67	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,423	4/16/2015	$	85.67	Open Market
Relational Investors LLC	Sale	5,908	4/16/2015	$	85.57	Open Market
Relational Investors LLC	Sale	1,519	4/16/2015	$	85.63	Open Market
Relational Investors LLC	Sale	1,808	4/16/2015	$	85.67	Open Market
Relational Coast Partners, L.P.	Sale	1,933	4/16/2015	$	85.57	Open Market
Relational Coast Partners, L.P.	Sale	172	4/16/2015	$	85.63	Open Market
Relational Coast Partners, L.P.	Sale	325	4/16/2015	$	85.63	Open Market
Relational Coast Partners, L.P.	Sale	591	4/16/2015	$	85.67	Open Market
Relational Fund Partners, L.P.	Sale	122	4/16/2015	$	85.57	Open Market
Relational Fund Partners, L.P.	Sale	22	4/16/2015	$	85.63	Open Market
Relational Fund Partners, L.P.	Sale	9	4/16/2015	$	85.63	Open Market
Relational Fund Partners, L.P.	Sale	37	4/16/2015	$	85.67	Open Market
RH Fund 1, L.P.	Sale	869	4/16/2015	$	85.57	Open Market
RH Fund 1, L.P.	Sale	223	4/16/2015	$	85.63	Open Market
RH Fund 1, L.P.	Sale	265	4/16/2015	$	85.67	Open Market
Relational Investors XV, L.P.	Sale	1,016	4/16/2015	$	85.57	Open Market
Relational Investors XV, L.P.	Sale	278	4/16/2015	$	85.57	Open Market
Relational Investors XV, L.P.	Sale	201	4/16/2015	$	85.63	Open Market
Relational Investors XV, L.P.	Sale	132	4/16/2015	$	85.63	Open Market

Relational Investors XV, L.P.	Sale	396	4/16/2015	$	85.67	Open Market
Relational Investors XVI, L.P.	Sale	641	4/16/2015	$	85.57	Open Market
Relational Investors XVI, L.P.	Sale	165	4/16/2015	$	85.63	Open Market
Relational Investors XVI, L.P.	Sale	196	4/16/2015	$	85.67	Open Market
Relational Investors XX, L.P.	Sale	1,166	4/16/2015	$	85.57	Open Market
Relational Investors XX, L.P.	Sale	299	4/16/2015	$	85.63	Open Market
Relational Investors XX, L.P.	Sale	356	4/16/2015	$	85.67	Open Market
Relational Investors XXIII, L.P.	Sale	1,653	4/16/2015	$	85.57	Open Market
Relational Investors XXIII, L.P.	Sale	425	4/16/2015	$	85.63	Open Market
Relational Investors XXIII, L.P.	Sale	506	4/16/2015	$	85.67	Open Market
Relational Investors IX, L.P.	Sale	1,568	4/16/2015	$	85.57	Open Market
Relational Investors IX, L.P.	Sale	672	4/16/2015	$	85.57	Open Market
Relational Investors IX, L.P.	Sale	576	4/16/2015	$	85.63	Open Market
Relational Investors IX, L.P.	Sale	685	4/16/2015	$	85.67	Open Market
Relational Investors LLC	Sale	5,121	4/16/2015	$	85.57	Open Market
Relational Investors LLC	Sale	1,317	4/16/2015	$	85.63	Open Market
Relational Investors LLC	Sale	1,567	4/16/2015	$	85.67	Open Market
Relational Investors XXIV, L.P.	Sale	33	4/16/2015	$	85.57	Open Market
Relational Investors XXIV, L.P.	Sale	8	4/16/2015	$	85.63	Open Market
Relational Investors XXIV, L.P.	Sale	10	4/16/2015	$	85.67	Open Market
Relational Investors LLC	Sale	527	4/17/2015	$	83.72	Open Market
Relational Investors LLC	Sale	476	4/17/2015	$	83.66	Open Market
Relational Investors LLC	Sale	310	4/17/2015	$	83.59	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,310	4/17/2015	$	83.72	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,891	4/17/2015	$	83.66	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	197	4/17/2015	$	83.66	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,360	4/17/2015	$	83.59	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,470	4/17/2015	$	83.72	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,003	4/17/2015	$	83.66	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,233	4/17/2015	$	83.66	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	1,460	4/17/2015	$	83.59	Open Market
Relational Investors LLC	Sale	1,750	4/17/2015	$	83.72	Open Market
Relational Investors LLC	Sale	1,582	4/17/2015	$	83.66	Open Market
Relational Investors LLC	Sale	1,030	4/17/2015	$	83.59	Open Market
Relational Coast Partners, L.P.	Sale	573	4/17/2015	$	83.72	Open Market
Relational Coast Partners, L.P.	Sale	517	4/17/2015	$	83.66	Open Market
Relational Coast Partners, L.P.	Sale	337	4/17/2015	$	83.59	Open Market
Relational Fund Partners, L.P.	Sale	36	4/17/2015	$	83.72	Open Market
Relational Fund Partners, L.P.	Sale	29	4/17/2015	$	83.66	Open Market
Relational Fund Partners, L.P.	Sale	3	4/17/2015	$	83.66	Open Market
Relational Fund Partners, L.P.	Sale	21	4/17/2015	$	83.59	Open Market
RH Fund 1, L.P.	Sale	257	4/17/2015	$	83.72	Open Market
RH Fund 1, L.P.	Sale	232	4/17/2015	$	83.66	Open Market
RH Fund 1, L.P.	Sale	151	4/17/2015	$	83.59	Open Market
Relational Investors XV, L.P.	Sale	383	4/17/2015	$	83.72	Open Market
Relational Investors XV, L.P.	Sale	346	4/17/2015	$	83.66	Open Market
Relational Investors XV, L.P.	Sale	225	4/17/2015	$	83.59	Open Market

Relational Investors XVI, L.P.	Sale	190	4/17/2015	$	83.72	Open Market
Relational Investors XVI, L.P.	Sale	171	4/17/2015	$	83.66	Open Market
Relational Investors XVI, L.P.	Sale	111	4/17/2015	$	83.59	Open Market
Relational Investors XX, L.P.	Sale	345	4/17/2015	$	83.72	Open Market
Relational Investors XX, L.P.	Sale	312	4/17/2015	$	83.66	Open Market
Relational Investors XX, L.P.	Sale	203	4/17/2015	$	83.59	Open Market
Relational Investors XXIII, L.P.	Sale	490	4/17/2015	$	83.72	Open Market
Relational Investors XXIII, L.P.	Sale	443	4/17/2015	$	83.66	Open Market
Relational Investors XXIII, L.P.	Sale	288	4/17/2015	$	83.59	Open Market
Relational Investors IX, L.P.	Sale	465	4/17/2015	$	83.72	Open Market
Relational Investors IX, L.P.	Sale	199	4/17/2015	$	83.72	Open Market
Relational Investors IX, L.P.	Sale	600	4/17/2015	$	83.66	Open Market
Relational Investors IX, L.P.	Sale	137	4/17/2015	$	83.59	Open Market
Relational Investors IX, L.P.	Sale	253	4/17/2015	$	83.59	Open Market
Relational Investors LLC	Sale	1,517	4/17/2015	$	83.72	Open Market
Relational Investors LLC	Sale	1,371	4/17/2015	$	83.66	Open Market
Relational Investors LLC	Sale	893	4/17/2015	$	83.59	Open Market
Relational Investors XXIV, L.P.	Sale	10	4/17/2015	$	83.72	Open Market
Relational Investors XXIV, L.P.	Sale	9	4/17/2015	$	83.66	Open Market
Relational Investors XXIV, L.P.	Sale	5	4/17/2015	$	83.59	Open Market
Relational Investors LLC	Sale	457	4/20/2015	$	84.44	Open Market
Relational Investors LLC	Sale	1,144	4/20/2015	$	84.51	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	2,004	4/20/2015	$	84.44	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	3,550	4/20/2015	$	84.51	Open Market
Relational Investors Mid-Cap Fund I, L.P.	Sale	1,462	4/20/2015	$	84.51	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	2,146	4/20/2015	$	84.44	Open Market
Relational Investors Mid-Cap Fund II, L.P.	Sale	5,354	4/20/2015	$	84.51	Open Market
Relational Investors LLC	Sale	1,519	4/20/2015	$	84.44	Open Market
Relational Investors LLC	Sale	127	4/20/2015	$	84.51	Open Market
Relational Investors LLC	Sale	3,672	4/20/2015	$	84.51	Open Market
Relational Coast Partners, L.P.	Sale	497	4/20/2015	$	84.44	Open Market
Relational Coast Partners, L.P.	Sale	1,243	4/20/2015	$	84.51	Open Market
Relational Fund Partners, L.P.	Sale	22	4/20/2015	$	84.44	Open Market
Relational Fund Partners, L.P.	Sale	2	4/20/2015	$	84.44	Open Market
Relational Fund Partners, L.P.	Sale	7	4/20/2015	$	84.44	Open Market
Relational Fund Partners, L.P.	Sale	73	4/20/2015	$	84.51	Open Market
Relational Fund Partners, L.P.	Sale	6	4/20/2015	$	84.51	Open Market
RH Fund 1, L.P.	Sale	223	4/20/2015	$	84.44	Open Market
RH Fund 1, L.P.	Sale	558	4/20/2015	$	84.51	Open Market
Relational Investors XV, L.P.	Sale	167	4/20/2015	$	84.44	Open Market
Relational Investors XV, L.P.	Sale	166	4/20/2015	$	84.44	Open Market
Relational Investors XV, L.P.	Sale	832	4/20/2015	$	84.51	Open Market
Relational Investors XVI, L.P.	Sale	165	4/20/2015	$	84.44	Open Market
Relational Investors XVI, L.P.	Sale	412	4/20/2015	$	84.51	Open Market
Relational Investors XX, L.P.	Sale	299	4/20/2015	$	84.44	Open Market
Relational Investors XX, L.P.	Sale	749	4/20/2015	$	84.51	Open Market
Relational Investors XXIII, L.P.	Sale	425	4/20/2015	$	84.44	Open Market
Relational Investors XXIII, L.P.	Sale	1,063	4/20/2015	$	84.51	Open Market
Relational Investors IX, L.P.	Sale	576	4/20/2015	$	84.44	Open Market
Relational Investors IX, L.P.	Sale	1,008	4/20/2015	$	84.51	Open Market
Relational Investors IX, L.P.	Sale	432	4/20/2015	$	84.51	Open Market
Relational Investors LLC	Sale	1,317	4/20/2015	$	84.44	Open Market
Relational Investors LLC	Sale	3,293	4/20/2015	$	84.51	Open Market
Relational Investors XXIV, L.P.	Sale	8	4/20/2015	$	84.44	Open Market
Relational Investors XXIV, L.P.	Sale	22	4/20/2015	$	84.51	Open Market