Relational Investors SC 13D L 3 COMMUNICATIONS / RELATIONAL INVESTORS ownership change

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, L.P.	Purchase	14,545	4/25/2011	$	78.40	Open Market
Relational Investors, L.P.	Purchase	14,150	4/25/2011	$	78.37	Open Market
RH Fund 1, L.P.	Purchase	5,494	4/25/2011	$	78.40	Open Market
RH Fund 1, L.P.	Purchase	5,345	4/25/2011	$	78.37	Open Market
Relational Investors LLC	Purchase	7,604	4/25/2011	$	78.40	Open Market
Relational Investors LLC	Purchase	7,398	4/25/2011	$	78.37	Open Market
RH Fund 6, L.P.	Purchase	3,773	4/25/2011	$	78.40	Open Market
RH Fund 6, L.P.	Purchase	3,670	4/25/2011	$	78.37	Open Market
Relational Investors VIII, L.P.	Purchase	14,921	4/25/2011	$	78.40	Open Market
Relational Investors VIII, L.P.	Purchase	14,518	4/25/2011	$	78.37	Open Market
Relational Investors IX, L.P.	Purchase	3,363	4/25/2011	$	78.40	Open Market
Relational Investors IX, L.P.	Purchase	1,441	4/25/2011	$	78.40	Open Market
Relational Investors IX, L.P.	Purchase	4,674	4/25/2011	$	78.37	Open Market
Relational Investors X, L.P.	Purchase	1,748	4/25/2011	$	78.40	Open Market
Relational Investors X, L.P.	Purchase	1,700	4/25/2011	$	78.37	Open Market
Relational Investors XV, L.P.	Purchase	1,704	4/25/2011	$	78.40	Open Market
Relational Investors XV, L.P.	Purchase	1,658	4/25/2011	$	78.37	Open Market
Relational Investors XVI, L.P.	Purchase	1,636	4/25/2011	$	78.40	Open Market
Relational Investors XVI, L.P.	Purchase	1,592	4/25/2011	$	78.37	Open Market
Relational Investors XX, L.P.	Purchase	1,478	4/25/2011	$	78.40	Open Market
Relational Investors XX, L.P.	Purchase	1,438	4/25/2011	$	78.37	Open Market
Relational Investors XXII, L.P.	Purchase	2,382	4/25/2011	$	78.40	Open Market
Relational Investors XXII, L.P.	Purchase	2,317	4/25/2011	$	78.37	Open Market
Relational Investors XXIII, L.P.	Purchase	2,078	4/25/2011	$	78.40	Open Market
Relational Investors XXIII, L.P.	Purchase	2,022	4/25/2011	$	78.37	Open Market
Relational Investors LLC	Purchase	3,671	4/25/2011	$	78.40	Open Market
Relational Investors LLC	Purchase	648	4/25/2011	$	78.40	Open Market
Relational Investors LLC	Purchase	3,572	4/25/2011	$	78.37	Open Market

Relational Investors LLC	Purchase	630	4/25/2011	$	78.37	Open Market
Relational Coast Partners, L.P.	Purchase	614	4/25/2011	$	78.40	Open Market
Relational Coast Partners, L.P.	Purchase	597	4/25/2011	$	78.37	Open Market
Relational Coast Partners, L.P.	Purchase	88	4/25/2011	$	78.40	Open Market
Relational Coast Partners, L.P.	Purchase	85	4/25/2011	$	78.37	Open Market
Relational Fund Partners, L.P.	Purchase	163	4/25/2011	$	78.40	Open Market
Relational Fund Partners, L.P.	Purchase	159	4/25/2011	$	78.37	Open Market
Relational Fund Partners, L.P.	Purchase	34	4/25/2011	$	78.40	Open Market
Relational Fund Partners, L.P.	Purchase	33	4/25/2011	$	78.37	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	3,889	4/25/2011	$	78.40	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	3,783	4/25/2011	$	78.37	Open Market
Relational Investors LLC	Purchase	9,709	4/25/2011	$	78.40	Open Market
Relational Investors LLC	Purchase	9,446	4/25/2011	$	78.37	Open Market
Relational Investors, L.P.	Purchase	34,138	4/26/2011	$	79.80	Open Market
Relational Investors, L.P.	Purchase	17,961	4/26/2011	$	79.89	Open Market
RH Fund 1, L.P.	Purchase	12,897	4/26/2011	$	79.80	Open Market
RH Fund 1, L.P.	Purchase	6,785	4/26/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	17,848	4/26/2011	$	79.80	Open Market
Relational Investors LLC	Purchase	9,390	4/26/2011	$	79.89	Open Market
RH Fund 6, L.P.	Purchase	8,855	4/26/2011	$	79.80	Open Market
RH Fund 6, L.P.	Purchase	4,659	4/26/2011	$	79.89	Open Market
Relational Investors VIII, L.P.	Purchase	35,006	4/26/2011	$	79.80	Open Market
Relational Investors VIII, L.P.	Purchase	18,422	4/26/2011	$	79.89	Open Market
Relational Investors IX, L.P.	Purchase	7,893	4/26/2011	$	79.80	Open Market
Relational Investors IX, L.P.	Purchase	3,383	4/26/2011	$	79.80	Open Market
Relational Investors IX, L.P.	Purchase	5,933	4/26/2011	$	79.89	Open Market
Relational Investors X, L.P.	Purchase	4,103	4/26/2011	$	79.80	Open Market
Relational Investors X, L.P.	Purchase	2,158	4/26/2011	$	79.89	Open Market
Relational Investors XV, L.P.	Purchase	4,000	4/26/2011	$	79.80	Open Market
Relational Investors XV, L.P.	Purchase	2,104	4/26/2011	$	79.89	Open Market
Relational Investors XVI, L.P.	Purchase	3,840	4/26/2011	$	79.80	Open Market
Relational Investors XVI, L.P.	Purchase	2,020	4/26/2011	$	79.89	Open Market
Relational Investors XX, L.P.	Purchase	3,470	4/26/2011	$	79.80	Open Market
Relational Investors XX, L.P.	Purchase	1,825	4/26/2011	$	79.89	Open Market

Relational Investors XXII, L.P.	Purchase	5,591	4/26/2011	$	79.80	Open Market
Relational Investors XXII, L.P.	Purchase	2,941	4/26/2011	$	79.89	Open Market
Relational Investors XXIII, L.P.	Purchase	4,878	4/26/2011	$	79.80	Open Market
Relational Investors XXIII, L.P.	Purchase	2,566	4/26/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	8,618	4/26/2011	$	79.80	Open Market
Relational Investors LLC	Purchase	1,521	4/26/2011	$	79.80	Open Market
Relational Investors LLC	Purchase	4,534	4/26/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	800	4/26/2011	$	79.89	Open Market
Relational Coast Partners, L.P.	Purchase	1,442	4/26/2011	$	79.80	Open Market
Relational Coast Partners, L.P.	Purchase	758	4/26/2011	$	79.89	Open Market
Relational Coast Partners, L.P.	Purchase	207	4/26/2011	$	79.80	Open Market
Relational Coast Partners, L.P.	Purchase	109	4/26/2011	$	79.89	Open Market
Relational Fund Partners, L.P.	Purchase	384	4/26/2011	$	79.80	Open Market
Relational Fund Partners, L.P.	Purchase	202	4/26/2011	$	79.89	Open Market
Relational Fund Partners, L.P.	Purchase	81	4/26/2011	$	79.80	Open Market
Relational Fund Partners, L.P.	Purchase	42	4/26/2011	$	79.89	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	9,127	4/26/2011	$	79.80	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	4,802	4/26/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	22,788	4/26/2011	$	79.80	Open Market
Relational Investors LLC	Purchase	11,989	4/26/2011	$	79.89	Open Market
Relational Investors, L.P.	Purchase	8,404	4/27/2011	$	80.01	Open Market
RH Fund 1, L.P.	Purchase	3,175	4/27/2011	$	80.02	Open Market
Relational Investors LLC	Purchase	4,394	4/27/2011	$	80.01	Open Market
RH Fund 6, L.P.	Purchase	2,180	4/27/2011	$	80.01	Open Market
Relational Investors VIII, L.P.	Purchase	8,622	4/27/2011	$	80.01	Open Market
Relational Investors IX, L.P.	Purchase	1,943	4/27/2011	$	80.01	Open Market
Relational Investors IX, L.P.	Purchase	833	4/27/2011	$	80.02	Open Market
Relational Investors X, L.P.	Purchase	1,010	4/27/2011	$	80.01	Open Market
Relational Investors XV, L.P.	Purchase	984	4/27/2011	$	80.01	Open Market
Relational Investors XVI, L.P.	Purchase	945	4/27/2011	$	80.02	Open Market
Relational Investors XX, L.P.	Purchase	854	4/27/2011	$	80.01	Open Market
Relational Investors XXII, L.P.	Purchase	1,376	4/27/2011	$	80.01	Open Market
Relational Investors XXIII, L.P.	Purchase	1,200	4/27/2011	$	80.01	Open Market
Relational Investors LLC	Purchase	2,122	4/27/2011	$	80.01	Open Market

Relational Investors LLC	Purchase	374	4/27/2011	$	80.01	Open Market
Relational Coast Partners, L.P.	Purchase	355	4/27/2011	$	80.02	Open Market
Relational Coast Partners, L.P.	Purchase	51	4/27/2011	$	80.02	Open Market
Relational Fund Partners, L.P.	Purchase	94	4/27/2011	$	80.01	Open Market
Relational Fund Partners, L.P.	Purchase	20	4/27/2011	$	80.01	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	2,247	4/27/2011	$	80.02	Open Market
Relational Investors LLC	Purchase	5,610	4/27/2011	$	80.01	Open Market
Relational Investors, L.P.	Purchase	3,792	4/28/2011	$	80.00	Open Market
RH Fund 1, L.P.	Purchase	1,432	4/28/2011	$	80.00	Open Market
Relational Investors LLC	Purchase	1,982	4/28/2011	$	80.00	Open Market
RH Fund 6, L.P.	Purchase	983	4/28/2011	$	80.00	Open Market
Relational Investors VIII, L.P.	Purchase	3,897	4/28/2011	$	80.00	Open Market
Relational Investors IX, L.P.	Purchase	876	4/28/2011	$	80.00	Open Market
Relational Investors IX, L.P.	Purchase	376	4/28/2011	$	80.00	Open Market
Relational Investors X, L.P.	Purchase	455	4/28/2011	$	80.00	Open Market
Relational Investors XV, L.P.	Purchase	444	4/28/2011	$	80.00	Open Market
Relational Investors XVI, L.P.	Purchase	426	4/28/2011	$	80.00	Open Market
Relational Investors XX, L.P.	Purchase	385	4/28/2011	$	80.00	Open Market
Relational Investors XXII, L.P.	Purchase	621	4/28/2011	$	80.00	Open Market
Relational Investors XXIII, L.P.	Purchase	541	4/28/2011	$	80.00	Open Market
Relational Investors LLC	Purchase	957	4/28/2011	$	80.00	Open Market
Relational Investors LLC	Purchase	169	4/28/2011	$	80.00	Open Market
Relational Coast Partners, L.P.	Purchase	160	4/28/2011	$	80.00	Open Market
Relational Coast Partners, L.P.	Purchase	23	4/28/2011	$	80.00	Open Market
Relational Fund Partners, L.P.	Purchase	42	4/28/2011	$	80.00	Open Market
Relational Fund Partners, L.P.	Purchase	9	4/28/2011	$	80.00	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	1,014	4/28/2011	$	80.00	Open Market
Relational Investors LLC	Purchase	2,531	4/28/2011	$	80.00	Open Market
Relational Investors, L.P.	Purchase	27,519	5/2/2011	$	80.96	Open Market
Relational Investors, L.P.	Purchase	2,857	5/2/2011	$	80.90	Open Market
RH Fund 1, L.P.	Purchase	9,663	5/2/2011	$	80.96	Open Market
RH Fund 1, L.P.	Purchase	1,003	5/2/2011	$	80.90	Open Market
Relational Investors LLC	Purchase	13,822	5/2/2011	$	80.96	Open Market
Relational Investors LLC	Purchase	1,435	5/2/2011	$	80.90	Open Market

RH Fund 6, L.P.	Purchase	6,854	5/2/2011	$	80.96	Open Market
RH Fund 6, L.P.	Purchase	711	5/2/2011	$	80.90	Open Market
Relational Investors VIII, L.P.	Purchase	28,226	5/2/2011	$	80.96	Open Market
Relational Investors VIII, L.P.	Purchase	2,939	5/2/2011	$	80.90	Open Market
Relational Investors IX, L.P.	Purchase	6,334	5/2/2011	$	80.96	Open Market
Relational Investors IX, L.P.	Purchase	2,715	5/2/2011	$	80.96	Open Market
Relational Investors IX, L.P.	Purchase	939	5/2/2011	$	80.90	Open Market
Relational Investors X, L.P.	Purchase	3,046	5/2/2011	$	80.96	Open Market
Relational Investors X, L.P.	Purchase	316	5/2/2011	$	80.90	Open Market
Relational Investors XV, L.P.	Purchase	3,097	5/2/2011	$	80.96	Open Market
Relational Investors XV, L.P.	Purchase	321	5/2/2011	$	80.90	Open Market
Relational Investors XVI, L.P.	Purchase	2,966	5/2/2011	$	80.96	Open Market
Relational Investors XVI, L.P.	Purchase	308	5/2/2011	$	80.90	Open Market
Relational Investors XX, L.P.	Purchase	2,561	5/2/2011	$	80.96	Open Market
Relational Investors XX, L.P.	Purchase	266	5/2/2011	$	80.90	Open Market
Relational Investors XXII, L.P.	Purchase	4,328	5/2/2011	$	80.96	Open Market
Relational Investors XXII, L.P.	Purchase	449	5/2/2011	$	80.90	Open Market
Relational Investors XXIII, L.P.	Purchase	3,572	5/2/2011	$	80.96	Open Market
Relational Investors XXIII, L.P.	Purchase	371	5/2/2011	$	80.90	Open Market
Relational Investors LLC	Purchase	6,610	5/2/2011	$	80.96	Open Market
Relational Investors LLC	Purchase	1,167	5/2/2011	$	80.96	Open Market
Relational Investors LLC	Purchase	686	5/2/2011	$	80.90	Open Market
Relational Investors LLC	Purchase	121	5/2/2011	$	80.90	Open Market
Relational Coast Partners, L.P.	Purchase	1,138	5/2/2011	$	80.96	Open Market
Relational Coast Partners, L.P.	Purchase	118	5/2/2011	$	80.90	Open Market
Relational Coast Partners, L.P.	Purchase	153	5/2/2011	$	80.96	Open Market
Relational Coast Partners, L.P.	Purchase	15	5/2/2011	$	80.90	Open Market
Relational Fund Partners, L.P.	Purchase	268	5/2/2011	$	80.96	Open Market
Relational Fund Partners, L.P.	Purchase	27	5/2/2011	$	80.90	Open Market
Relational Fund Partners, L.P.	Purchase	59	5/2/2011	$	80.96	Open Market
Relational Fund Partners, L.P.	Purchase	6	5/2/2011	$	80.90	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	7,135	5/2/2011	$	80.96	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	740	5/2/2011	$	80.90	Open Market
Relational Investors LLC	Purchase	16,907	5/2/2011	$	80.96	Open Market

Relational Investors LLC	Purchase	1,755	5/2/2011	$	80.90	Open Market
Relational Investors, L.P.	Purchase	72,960	5/5/2011	$	82.58	Open Market
RH Fund 1, L.P.	Purchase	25,618	5/5/2011	$	82.58	Open Market
Relational Investors LLC	Purchase	36,645	5/5/2011	$	82.58	Open Market
RH Fund 6, L.P.	Purchase	18,173	5/5/2011	$	82.58	Open Market
Relational Investors VIII, L.P.	Purchase	74,805	5/5/2011	$	82.58	Open Market
Relational Investors IX, L.P.	Purchase	16,794	5/5/2011	$	82.58	Open Market
Relational Investors IX, L.P.	Purchase	7,198	5/5/2011	$	82.58	Open Market
Relational Investors X, L.P.	Purchase	8,077	5/5/2011	$	82.58	Open Market
Relational Investors XV, L.P.	Purchase	8,212	5/5/2011	$	82.58	Open Market
Relational Investors XVI, L.P.	Purchase	7,865	5/5/2011	$	82.58	Open Market
Relational Investors XX, L.P.	Purchase	6,792	5/5/2011	$	82.58	Open Market
Relational Investors XXII, L.P.	Purchase	11,475	5/5/2011	$	82.58	Open Market
Relational Investors XXIII, L.P.	Purchase	9,472	5/5/2011	$	82.58	Open Market
Relational Investors LLC	Purchase	17,525	5/5/2011	$	82.58	Open Market
Relational Investors LLC	Purchase	3,093	5/5/2011	$	82.58	Open Market
Relational Coast Partners, L.P.	Purchase	3,019	5/5/2011	$	82.58	Open Market
Relational Coast Partners, L.P.	Purchase	408	5/5/2011	$	82.58	Open Market
Relational Fund Partners, L.P.	Purchase	712	5/5/2011	$	82.58	Open Market
Relational Fund Partners, L.P.	Purchase	159	5/5/2011	$	82.58	Open Market
Relational Fund Partners, L.P.	Purchase	2	5/5/2011	$	82.57	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	18,916	5/5/2011	$	82.58	Open Market
Relational Investors LLC	Purchase	44,824	5/5/2011	$	82.58	Open Market
Relational Investors, L.P.	Purchase	12,914	5/6/2011	$	83.02	Open Market
RH Fund 1, L.P.	Purchase	4,534	5/6/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	6,486	5/6/2011	$	83.02	Open Market
RH Fund 6, L.P.	Purchase	3,216	5/6/2011	$	83.02	Open Market
Relational Investors VIII, L.P.	Purchase	13,250	5/6/2011	$	83.02	Open Market
Relational Investors IX, L.P.	Purchase	2,973	5/6/2011	$	83.02	Open Market
Relational Investors IX, L.P.	Purchase	1,274	5/6/2011	$	83.02	Open Market
Relational Investors X, L.P.	Purchase	1,429	5/6/2011	$	83.02	Open Market
Relational Investors XV, L.P.	Purchase	1,453	5/6/2011	$	83.02	Open Market
Relational Investors XVI, L.P.	Purchase	1,392	5/6/2011	$	83.02	Open Market
Relational Investors XX, L.P.	Purchase	1,202	5/6/2011	$	83.02	Open Market

Relational Investors XXII, L.P.	Purchase	2,031	5/6/2011	$	83.02	Open Market
Relational Investors XXIII, L.P.	Purchase	1,676	5/6/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	3,102	5/6/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	547	5/6/2011	$	83.02	Open Market
Relational Coast Partners, L.P.	Purchase	534	5/6/2011	$	83.02	Open Market
Relational Coast Partners, L.P.	Purchase	72	5/6/2011	$	83.02	Open Market
Relational Fund Partners, L.P.	Purchase	126	5/6/2011	$	83.02	Open Market
Relational Fund Partners, L.P.	Purchase	28	5/6/2011	$	83.02	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	3,348	5/6/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	7,934	5/6/2011	$	83.02	Open Market
Relational Investors, L.P.	Purchase	3,209	5/9/2011	$	82.95	Open Market
RH Fund 1, L.P.	Purchase	1,127	5/9/2011	$	82.95	Open Market
Relational Investors LLC	Purchase	1,612	5/9/2011	$	82.95	Open Market
RH Fund 6, L.P.	Purchase	799	5/9/2011	$	82.95	Open Market
Relational Investors VIII, L.P.	Purchase	3,298	5/9/2011	$	82.95	Open Market
Relational Investors IX, L.P.	Purchase	738	5/9/2011	$	82.95	Open Market
Relational Investors IX, L.P.	Purchase	317	5/9/2011	$	82.95	Open Market
Relational Investors X, L.P.	Purchase	355	5/9/2011	$	82.95	Open Market
Relational Investors XV, L.P.	Purchase	361	5/9/2011	$	82.95	Open Market
Relational Investors XVI, L.P.	Purchase	346	5/9/2011	$	82.95	Open Market
Relational Investors XX, L.P.	Purchase	298	5/9/2011	$	82.95	Open Market
Relational Investors XXII, L.P.	Purchase	504	5/9/2011	$	82.95	Open Market
Relational Investors XXIII, L.P.	Purchase	416	5/9/2011	$	82.95	Open Market
Relational Investors LLC	Purchase	771	5/9/2011	$	82.95	Open Market
Relational Investors LLC	Purchase	136	5/9/2011	$	82.95	Open Market
Relational Coast Partners, L.P.	Purchase	132	5/9/2011	$	82.95	Open Market
Relational Coast Partners, L.P.	Purchase	17	5/9/2011	$	82.95	Open Market
Relational Fund Partners, L.P.	Purchase	31	5/9/2011	$	82.95	Open Market
Relational Fund Partners, L.P.	Purchase	7	5/9/2011	$	82.96	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	832	5/9/2011	$	82.95	Open Market
Relational Investors LLC	Purchase	1,972	5/9/2011	$	82.95	Open Market
Relational Investors, L.P.	Purchase	4,910	5/11/2011	$	83.02	Open Market
RH Fund 1, L.P.	Purchase	1,724	5/11/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	2,466	5/11/2011	$	83.02	Open Market

RH Fund 6, L.P.	Purchase	1,223	5/11/2011	$	83.02	Open Market
Relational Investors VIII, L.P.	Purchase	5,043	5/11/2011	$	83.02	Open Market
Relational Investors IX, L.P.	Purchase	1,130	5/11/2011	$	83.02	Open Market
Relational Investors IX, L.P.	Purchase	484	5/11/2011	$	83.02	Open Market
Relational Investors X, L.P.	Purchase	543	5/11/2011	$	83.02	Open Market
Relational Investors XV, L.P.	Purchase	552	5/11/2011	$	83.02	Open Market
Relational Investors XVI, L.P.	Purchase	529	5/11/2011	$	83.02	Open Market
Relational Investors XX, L.P.	Purchase	457	5/11/2011	$	83.02	Open Market
Relational Investors XXII, L.P.	Purchase	772	5/11/2011	$	83.02	Open Market
Relational Investors XXIII, L.P.	Purchase	637	5/11/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	1,179	5/11/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	208	5/11/2011	$	83.02	Open Market
Relational Coast Partners, L.P.	Purchase	203	5/11/2011	$	83.02	Open Market
Relational Coast Partners, L.P.	Purchase	27	5/11/2011	$	83.02	Open Market
Relational Fund Partners, L.P.	Purchase	47	5/11/2011	$	83.02	Open Market
Relational Fund Partners, L.P.	Purchase	10	5/11/2011	$	83.02	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	1,273	5/11/2011	$	83.02	Open Market
Relational Investors LLC	Purchase	3,016	5/11/2011	$	83.02	Open Market
Relational Investors, L.P.	Purchase	4,254	5/12/2011	$	83.45	Open Market
RH Fund 1, L.P.	Purchase	1,493	5/12/2011	$	83.45	Open Market
Relational Investors LLC	Purchase	2,136	5/12/2011	$	83.45	Open Market
RH Fund 6, L.P.	Purchase	1,059	5/12/2011	$	83.45	Open Market
Relational Investors VIII, L.P.	Purchase	4,370	5/12/2011	$	83.45	Open Market
Relational Investors IX, L.P.	Purchase	979	5/12/2011	$	83.45	Open Market
Relational Investors IX, L.P.	Purchase	419	5/12/2011	$	83.45	Open Market
Relational Investors X, L.P.	Purchase	471	5/12/2011	$	83.45	Open Market
Relational Investors XV, L.P.	Purchase	478	5/12/2011	$	83.45	Open Market
Relational Investors XVI, L.P.	Purchase	458	5/12/2011	$	83.45	Open Market
Relational Investors XX, L.P.	Purchase	396	5/12/2011	$	83.45	Open Market
Relational Investors XXII, L.P.	Purchase	669	5/12/2011	$	83.45	Open Market
Relational Investors XXIII, L.P.	Purchase	552	5/12/2011	$	83.45	Open Market
Relational Investors LLC	Purchase	1,022	5/12/2011	$	83.45	Open Market
Relational Investors LLC	Purchase	180	5/12/2011	$	83.45	Open Market
Relational Coast Partners, L.P.	Purchase	176	5/12/2011	$	83.45	Open Market

Relational Coast Partners, L.P.	Purchase	23	5/12/2011	$	83.45	Open Market
Relational Fund Partners, L.P.	Purchase	41	5/12/2011	$	83.45	Open Market
Relational Fund Partners, L.P.	Purchase	9	5/12/2011	$	83.45	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	1,102	5/12/2011	$	83.45	Open Market
Relational Investors LLC	Purchase	2,613	5/12/2011	$	83.45	Open Market
Relational Investors, L.P.	Purchase	48,110	5/13/2011	$	83.38	Open Market
RH Fund 1, L.P.	Purchase	16,893	5/13/2011	$	83.38	Open Market
Relational Investors LLC	Purchase	24,163	5/13/2011	$	83.38	Open Market
RH Fund 6, L.P.	Purchase	11,983	5/13/2011	$	83.38	Open Market
Relational Investors VIII, L.P.	Purchase	49,320	5/13/2011	$	83.38	Open Market
Relational Investors IX, L.P.	Purchase	11,075	5/13/2011	$	83.38	Open Market
Relational Investors IX, L.P.	Purchase	4,746	5/13/2011	$	83.38	Open Market
Relational Investors X, L.P.	Purchase	5,327	5/13/2011	$	83.38	Open Market
Relational Investors XV, L.P.	Purchase	5,416	5/13/2011	$	83.38	Open Market
Relational Investors XVI, L.P.	Purchase	5,187	5/13/2011	$	83.38	Open Market
Relational Investors XX, L.P.	Purchase	4,478	5/13/2011	$	83.38	Open Market
Relational Investors XXII, L.P.	Purchase	7,567	5/13/2011	$	83.38	Open Market
Relational Investors XXIII, L.P.	Purchase	6,246	5/13/2011	$	83.38	Open Market
Relational Investors LLC	Purchase	11,557	5/13/2011	$	83.38	Open Market
Relational Investors LLC	Purchase	2,039	5/13/2011	$	83.38	Open Market
Relational Coast Partners, L.P.	Purchase	1,991	5/13/2011	$	83.38	Open Market
Relational Coast Partners, L.P.	Purchase	269	5/13/2011	$	83.38	Open Market
Relational Fund Partners, L.P.	Purchase	470	5/13/2011	$	83.38	Open Market
Relational Fund Partners, L.P.	Purchase	105	5/13/2011	$	83.38	Open Market
Relational Fund Partners, L.P.	Purchase	1	5/13/2011	$	83.39	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	12,473	5/13/2011	$	83.38	Open Market
Relational Investors LLC	Purchase	29,557	5/13/2011	$	83.38	Open Market
Relational Investors, L.P.	Purchase	23,767	5/16/2011	$	83.98	Open Market
RH Fund 1, L.P.	Purchase	8,345	5/16/2011	$	83.98	Open Market
Relational Investors LLC	Purchase	11,937	5/16/2011	$	83.98	Open Market
RH Fund 6, L.P.	Purchase	5,920	5/16/2011	$	83.98	Open Market
Relational Investors VIII, L.P.	Purchase	24,370	5/16/2011	$	83.98	Open Market
Relational Investors IX, L.P.	Purchase	5,471	5/16/2011	$	83.98	Open Market
Relational Investors IX, L.P.	Purchase	2,345	5/16/2011	$	83.98	Open Market

Relational Investors X, L.P.	Purchase	2,631	5/16/2011	$	83.98	Open Market
Relational Investors XV, L.P.	Purchase	2,675	5/16/2011	$	83.98	Open Market
Relational Investors XVI, L.P.	Purchase	2,562	5/16/2011	$	83.98	Open Market
Relational Investors XX, L.P.	Purchase	2,212	5/16/2011	$	83.98	Open Market
Relational Investors XXII, L.P.	Purchase	3,738	5/16/2011	$	83.98	Open Market
Relational Investors XXIII, L.P.	Purchase	3,086	5/16/2011	$	83.98	Open Market
Relational Investors LLC	Purchase	5,709	5/16/2011	$	83.98	Open Market
Relational Investors LLC	Purchase	1,008	5/16/2011	$	83.98	Open Market
Relational Coast Partners, L.P.	Purchase	984	5/16/2011	$	83.98	Open Market
Relational Coast Partners, L.P.	Purchase	133	5/16/2011	$	83.98	Open Market
Relational Fund Partners, L.P.	Purchase	232	5/16/2011	$	83.98	Open Market
Relational Fund Partners, L.P.	Purchase	52	5/16/2011	$	83.98	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	6,162	5/16/2011	$	83.98	Open Market
Relational Investors LLC	Purchase	14,602	5/16/2011	$	83.98	Open Market
Relational Investors, L.P.	Purchase	78,484	5/17/2011	$	84.06	Open Market
RH Fund 1, L.P.	Purchase	27,559	5/17/2011	$	84.07	Open Market
Relational Investors LLC	Purchase	39,420	5/17/2011	$	84.06	Open Market
RH Fund 6, L.P.	Purchase	19,550	5/17/2011	$	84.06	Open Market
Relational Investors VIII, L.P.	Purchase	80,445	5/17/2011	$	84.07	Open Market
Relational Investors IX, L.P.	Purchase	18,066	5/17/2011	$	84.07	Open Market
Relational Investors IX, L.P.	Purchase	7,743	5/17/2011	$	84.06	Open Market
Relational Investors X, L.P.	Purchase	8,690	5/17/2011	$	84.06	Open Market
Relational Investors XV, L.P.	Purchase	8,835	5/17/2011	$	84.07	Open Market
Relational Investors XVI, L.P.	Purchase	8,462	5/17/2011	$	84.06	Open Market
Relational Investors XX, L.P.	Purchase	7,307	5/17/2011	$	84.07	Open Market
Relational Investors XXII, L.P.	Purchase	12,345	5/17/2011	$	84.07	Open Market
Relational Investors XXIII, L.P.	Purchase	10,190	5/17/2011	$	84.06	Open Market
Relational Investors LLC	Purchase	18,853	5/17/2011	$	84.06	Open Market
Relational Investors LLC	Purchase	3,327	5/17/2011	$	84.07	Open Market
Relational Coast Partners, L.P.	Purchase	3,249	5/17/2011	$	84.07	Open Market
Relational Coast Partners, L.P.	Purchase	440	5/17/2011	$	84.06	Open Market
Relational Fund Partners, L.P.	Purchase	767	5/17/2011	$	84.07	Open Market
Relational Fund Partners, L.P.	Purchase	171	5/17/2011	$	84.07	Open Market
Relational Fund Partners, L.P.	Purchase	3	5/17/2011	$	84.07	Open Market

Relational Investors Alpha Fund I, L.P.	Purchase	20,349	5/17/2011	$	84.07	Open Market
Relational Investors LLC	Purchase	48,219	5/17/2011	$	84.07	Open Market
Relational Investors, L.P.	Purchase	58,166	5/18/2011	$	84.38	Open Market
RH Fund 1, L.P.	Purchase	20,424	5/18/2011	$	84.38	Open Market
Relational Investors LLC	Purchase	29,215	5/18/2011	$	84.38	Open Market
RH Fund 6, L.P.	Purchase	14,489	5/18/2011	$	84.38	Open Market
Relational Investors VIII, L.P.	Purchase	59,616	5/18/2011	$	84.38	Open Market
Relational Investors IX, L.P.	Purchase	13,390	5/18/2011	$	84.38	Open Market
Relational Investors IX, L.P.	Purchase	5,738	5/18/2011	$	84.38	Open Market
Relational Investors X, L.P.	Purchase	6,441	5/18/2011	$	84.38	Open Market
Relational Investors XV, L.P.	Purchase	6,548	5/18/2011	$	84.38	Open Market
Relational Investors XVI, L.P.	Purchase	6,271	5/18/2011	$	84.38	Open Market
Relational Investors XX, L.P.	Purchase	5,416	5/18/2011	$	84.38	Open Market
Relational Investors XXII, L.P.	Purchase	9,150	5/18/2011	$	84.38	Open Market
Relational Investors XXIII, L.P.	Purchase	7,552	5/18/2011	$	84.38	Open Market
Relational Investors LLC	Purchase	13,972	5/18/2011	$	84.38	Open Market
Relational Investors LLC	Purchase	2,466	5/18/2011	$	84.38	Open Market
Relational Coast Partners, L.P.	Purchase	2,408	5/18/2011	$	84.38	Open Market
Relational Coast Partners, L.P.	Purchase	326	5/18/2011	$	84.38	Open Market
Relational Fund Partners, L.P.	Purchase	569	5/18/2011	$	84.38	Open Market
Relational Fund Partners, L.P.	Purchase	127	5/18/2011	$	84.38	Open Market
Relational Fund Partners, L.P.	Purchase	2	5/18/2011	$	84.37	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	15,081	5/18/2011	$	84.38	Open Market
Relational Investors LLC	Purchase	35,736	5/18/2011	$	84.38	Open Market
Relational Investors, L.P.	Purchase	30,467	5/19/2011	$	84.52	Open Market
RH Fund 1, L.P.	Purchase	10,699	5/19/2011	$	84.52	Open Market
Relational Investors LLC	Purchase	15,303	5/19/2011	$	84.52	Open Market
RH Fund 6, L.P.	Purchase	7,590	5/19/2011	$	84.52	Open Market
Relational Investors VIII, L.P.	Purchase	31,205	5/19/2011	$	84.52	Open Market
Relational Investors IX, L.P.	Purchase	7,014	5/19/2011	$	84.52	Open Market
Relational Investors IX, L.P.	Purchase	3,006	5/19/2011	$	84.52	Open Market
Relational Investors X, L.P.	Purchase	3,374	5/19/2011	$	84.52	Open Market
Relational Investors XV, L.P.	Purchase	3,431	5/19/2011	$	84.52	Open Market
Relational Investors XVI, L.P.	Purchase	3,286	5/19/2011	$	84.52	Open Market

Relational Investors XX, L.P.	Purchase	2,837	5/19/2011	$	84.52	Open Market
Relational Investors XXII, L.P.	Purchase	4,793	5/19/2011	$	84.52	Open Market
Relational Investors XXIII, L.P.	Purchase	3,957	5/19/2011	$	84.52	Open Market
Relational Investors LLC	Purchase	7,319	5/19/2011	$	84.52	Open Market
Relational Investors LLC	Purchase	1,292	5/19/2011	$	84.52	Open Market
Relational Coast Partners, L.P.	Purchase	1,262	5/19/2011	$	84.52	Open Market
Relational Coast Partners, L.P.	Purchase	172	5/19/2011	$	84.52	Open Market
Relational Fund Partners, L.P.	Purchase	299	5/19/2011	$	84.52	Open Market
Relational Fund Partners, L.P.	Purchase	68	5/19/2011	$	84.52	Open Market
Relational Fund Partners, L.P.	Purchase	2	5/19/2011	$	84.52	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	7,900	5/19/2011	$	84.52	Open Market
Relational Investors LLC	Purchase	18,719	5/19/2011	$	84.52	Open Market
Relational Investors, L.P.	Purchase	37,422	5/23/2011	$	82.84	Open Market
RH Fund 1, L.P.	Purchase	13,138	5/23/2011	$	82.84	Open Market
Relational Investors LLC	Purchase	18,301	5/23/2011	$	82.84	Open Market
RH Fund 6, L.P.	Purchase	9,044	5/23/2011	$	82.84	Open Market
Relational Investors VIII, L.P.	Purchase	38,367	5/23/2011	$	82.84	Open Market
Relational Investors IX, L.P.	Purchase	12,307	5/23/2011	$	82.84	Open Market
Relational Investors X, L.P.	Purchase	4,019	5/23/2011	$	82.84	Open Market
Relational Investors XV, L.P.	Purchase	4,087	5/23/2011	$	82.84	Open Market
Relational Investors XVI, L.P.	Purchase	4,035	5/23/2011	$	82.84	Open Market
Relational Investors XX, L.P.	Purchase	3,465	5/23/2011	$	82.84	Open Market
Relational Investors XXII, L.P.	Purchase	5,723	5/23/2011	$	82.84	Open Market
Relational Investors XXIII, L.P.	Purchase	4,824	5/23/2011	$	82.84	Open Market
Relational Investors LLC	Purchase	8,758	5/23/2011	$	82.84	Open Market
Relational Investors LLC	Purchase	1,545	5/23/2011	$	82.84	Open Market
Relational Coast Partners, L.P.	Purchase	1,549	5/23/2011	$	82.84	Open Market
Relational Coast Partners, L.P.	Purchase	210	5/23/2011	$	82.84	Open Market
Relational Fund Partners, L.P.	Purchase	367	5/23/2011	$	82.84	Open Market
Relational Fund Partners, L.P.	Purchase	82	5/23/2011	$	82.84	Open Market
Relational Fund Partners, L.P.	Purchase	1	5/23/2011	$	82.84	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	9,703	5/23/2011	$	82.84	Open Market
Relational Investors LLC	Purchase	23,053	5/23/2011	$	82.84	Open Market
Relational Investors, L.P.	Purchase	8,706	6/13/2011	$	79.84	Open Market

Relational Investors, L.P.	Purchase	5,390	6/13/2011	$	79.88	Open Market
Relational Investors, L.P.	Purchase	2,176	6/13/2011	$	79.89	Open Market
RH Fund 1, L.P.	Purchase	7,678	6/13/2011	$	79.84	Open Market
RH Fund 1, L.P.	Purchase	4,754	6/13/2011	$	79.88	Open Market
RH Fund 1, L.P.	Purchase	1,919	6/13/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	9,138	6/13/2011	$	79.84	Open Market
Relational Investors LLC	Purchase	5,657	6/13/2011	$	79.88	Open Market
Relational Investors LLC	Purchase	2,284	6/13/2011	$	79.89	Open Market
RH Fund 6, L.P.	Purchase	5,236	6/13/2011	$	79.84	Open Market
RH Fund 6, L.P.	Purchase	3,242	6/13/2011	$	79.88	Open Market
RH Fund 6, L.P.	Purchase	1,309	6/13/2011	$	79.89	Open Market
Relational Investors VIII, L.P.	Purchase	21,114	6/13/2011	$	79.84	Open Market
Relational Investors VIII, L.P.	Purchase	13,075	6/13/2011	$	79.88	Open Market
Relational Investors VIII, L.P.	Purchase	5,284	6/13/2011	$	79.89	Open Market
Relational Investors IX, L.P.	Purchase	6,573	6/13/2011	$	79.84	Open Market
Relational Investors IX, L.P.	Purchase	4,069	6/13/2011	$	79.88	Open Market
Relational Investors IX, L.P.	Purchase	1,643	6/13/2011	$	79.89	Open Market
Relational Investors X, L.P.	Purchase	2,352	6/13/2011	$	79.84	Open Market
Relational Investors X, L.P.	Purchase	1,456	6/13/2011	$	79.88	Open Market
Relational Investors X, L.P.	Purchase	588	6/13/2011	$	79.89	Open Market
Relational Investors XV, L.P.	Purchase	2,320	6/13/2011	$	79.84	Open Market
Relational Investors XV, L.P.	Purchase	1,436	6/13/2011	$	79.88	Open Market
Relational Investors XV, L.P.	Purchase	580	6/13/2011	$	79.89	Open Market
Relational Investors XVI, L.P.	Purchase	2,178	6/13/2011	$	79.84	Open Market
Relational Investors XVI, L.P.	Purchase	1,348	6/13/2011	$	79.88	Open Market
Relational Investors XVI, L.P.	Purchase	544	6/13/2011	$	79.89	Open Market
Relational Investors XX, L.P.	Purchase	2,192	6/13/2011	$	79.84	Open Market
Relational Investors XX, L.P.	Purchase	1,357	6/13/2011	$	79.88	Open Market
Relational Investors XX, L.P.	Purchase	548	6/13/2011	$	79.89	Open Market
Relational Investors XXII, L.P.	Purchase	3,382	6/13/2011	$	79.84	Open Market
Relational Investors XXII, L.P.	Purchase	2,094	6/13/2011	$	79.88	Open Market
Relational Investors XXII, L.P.	Purchase	845	6/13/2011	$	79.89	Open Market
Relational Investors XXIII, L.P.	Purchase	3,070	6/13/2011	$	79.84	Open Market
Relational Investors XXIII, L.P.	Purchase	1,901	6/13/2011	$	79.88	Open Market

Relational Investors XXIII, L.P.	Purchase	767	6/13/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	4,537	6/13/2011	$	79.84	Open Market
Relational Investors LLC	Purchase	801	6/13/2011	$	79.84	Open Market
Relational Investors LLC	Purchase	2,809	6/13/2011	$	79.88	Open Market
Relational Investors LLC	Purchase	496	6/13/2011	$	79.88	Open Market
Relational Investors LLC	Purchase	1,134	6/13/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	200	6/13/2011	$	79.89	Open Market
Relational Coast Partners, L.P.	Purchase	898	6/13/2011	$	79.84	Open Market
Relational Coast Partners, L.P.	Purchase	556	6/13/2011	$	79.88	Open Market
Relational Coast Partners, L.P.	Purchase	224	6/13/2011	$	79.89	Open Market
Relational Coast Partners, L.P.	Purchase	125	6/13/2011	$	79.84	Open Market
Relational Coast Partners, L.P.	Purchase	77	6/13/2011	$	79.88	Open Market
Relational Coast Partners, L.P.	Purchase	31	6/13/2011	$	79.89	Open Market
Relational Fund Partners, L.P.	Purchase	208	6/13/2011	$	79.84	Open Market
Relational Fund Partners, L.P.	Purchase	129	6/13/2011	$	79.88	Open Market
Relational Fund Partners, L.P.	Purchase	52	6/13/2011	$	79.89	Open Market
Relational Fund Partners, L.P.	Purchase	45	6/13/2011	$	79.84	Open Market
Relational Fund Partners, L.P.	Purchase	28	6/13/2011	$	79.88	Open Market
Relational Fund Partners, L.P.	Purchase	11	6/13/2011	$	79.89	Open Market
Relational Fund Partners, L.P.	Purchase	1	6/13/2011	$	79.84	Open Market
Relational Fund Partners, L.P.	Purchase	1	6/13/2011	$	79.88	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	5,458	6/13/2011	$	79.84	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	3,379	6/13/2011	$	79.88	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	1,364	6/13/2011	$	79.89	Open Market
Relational Investors LLC	Purchase	13,988	6/13/2011	$	79.84	Open Market
Relational Investors LLC	Purchase	8,660	6/13/2011	$	79.88	Open Market
Relational Investors LLC	Purchase	3,497	6/13/2011	$	79.89	Open Market
Relational Investors, L.P.	Purchase	1,822	6/14/2011	$	81.15	Open Market
Relational Investors, L.P.	Purchase	7,496	6/14/2011	$	81.29	Open Market
Relational Investors, L.P.	Purchase	7,203	6/14/2011	$	81.33	Open Market
Relational Investors, L.P.	Purchase	2,529	6/14/2011	$	81.13	Open Market
RH Fund 1, L.P.	Purchase	1,607	6/14/2011	$	81.15	Open Market
RH Fund 1, L.P.	Purchase	6,611	6/14/2011	$	81.29	Open Market
RH Fund 1, L.P.	Purchase	6,352	6/14/2011	$	81.33	Open Market

RH Fund 1, L.P.	Purchase	2,230	6/14/2011	$	81.12	Open Market
Relational Investors LLC	Purchase	1,912	6/14/2011	$	81.15	Open Market
Relational Investors LLC	Purchase	7,867	6/14/2011	$	81.29	Open Market
Relational Investors LLC	Purchase	7,560	6/14/2011	$	81.33	Open Market
Relational Investors LLC	Purchase	2,654	6/14/2011	$	81.12	Open Market
RH Fund 6, L.P.	Purchase	1,096	6/14/2011	$	81.15	Open Market
RH Fund 6, L.P.	Purchase	4,508	6/14/2011	$	81.29	Open Market
RH Fund 6, L.P.	Purchase	4,332	6/14/2011	$	81.33	Open Market
RH Fund 6, L.P.	Purchase	1,521	6/14/2011	$	81.13	Open Market
Relational Investors VIII, L.P.	Purchase	4,427	6/14/2011	$	81.15	Open Market
Relational Investors VIII, L.P.	Purchase	18,179	6/14/2011	$	81.29	Open Market
Relational Investors VIII, L.P.	Purchase	17,467	6/14/2011	$	81.33	Open Market
Relational Investors VIII, L.P.	Purchase	6,142	6/14/2011	$	81.12	Open Market
Relational Investors IX, L.P.	Purchase	1,375	6/14/2011	$	81.15	Open Market
Relational Investors IX, L.P.	Purchase	5,659	6/14/2011	$	81.29	Open Market
Relational Investors IX, L.P.	Purchase	5,438	6/14/2011	$	81.33	Open Market
Relational Investors IX, L.P.	Purchase	1,336	6/14/2011	$	81.12	Open Market
Relational Investors IX, L.P.	Purchase	573	6/14/2011	$	81.13	Open Market
Relational Investors X, L.P.	Purchase	492	6/14/2011	$	81.15	Open Market
Relational Investors X, L.P.	Purchase	2,025	6/14/2011	$	81.29	Open Market
Relational Investors X, L.P.	Purchase	1,945	6/14/2011	$	81.33	Open Market
Relational Investors X, L.P.	Purchase	683	6/14/2011	$	81.13	Open Market
Relational Investors XV, L.P.	Purchase	485	6/14/2011	$	81.15	Open Market
Relational Investors XV, L.P.	Purchase	1,997	6/14/2011	$	81.29	Open Market
Relational Investors XV, L.P.	Purchase	1,919	6/14/2011	$	81.33	Open Market
Relational Investors XV, L.P.	Purchase	673	6/14/2011	$	81.13	Open Market
Relational Investors XVI, L.P.	Purchase	455	6/14/2011	$	81.15	Open Market
Relational Investors XVI, L.P.	Purchase	1,875	6/14/2011	$	81.29	Open Market
Relational Investors XVI, L.P.	Purchase	1,802	6/14/2011	$	81.33	Open Market
Relational Investors XVI, L.P.	Purchase	632	6/14/2011	$	81.12	Open Market
Relational Investors XX, L.P.	Purchase	458	6/14/2011	$	81.15	Open Market
Relational Investors XX, L.P.	Purchase	1,887	6/14/2011	$	81.29	Open Market
Relational Investors XX, L.P.	Purchase	1,814	6/14/2011	$	81.33	Open Market
Relational Investors XX, L.P.	Purchase	637	6/14/2011	$	81.13	Open Market

Relational Investors XXII, L.P.	Purchase	707	6/14/2011	$	81.15	Open Market
Relational Investors XXII, L.P.	Purchase	2,912	6/14/2011	$	81.29	Open Market
Relational Investors XXII, L.P.	Purchase	2,798	6/14/2011	$	81.33	Open Market
Relational Investors XXII, L.P.	Purchase	982	6/14/2011	$	81.12	Open Market
Relational Investors XXIII, L.P.	Purchase	642	6/14/2011	$	81.15	Open Market
Relational Investors XXIII, L.P.	Purchase	2,643	6/14/2011	$	81.29	Open Market
Relational Investors XXIII, L.P.	Purchase	2,540	6/14/2011	$	81.33	Open Market
Relational Investors XXIII, L.P.	Purchase	891	6/14/2011	$	81.13	Open Market
Relational Investors LLC	Purchase	949	6/14/2011	$	81.15	Open Market
Relational Investors LLC	Purchase	168	6/14/2011	$	81.15	Open Market
Relational Investors LLC	Purchase	3,907	6/14/2011	$	81.29	Open Market
Relational Investors LLC	Purchase	689	6/14/2011	$	81.29	Open Market
Relational Investors LLC	Purchase	3,754	6/14/2011	$	81.33	Open Market
Relational Investors LLC	Purchase	662	6/14/2011	$	81.33	Open Market
Relational Investors LLC	Purchase	1,317	6/14/2011	$	81.12	Open Market
Relational Investors LLC	Purchase	233	6/14/2011	$	81.13	Open Market
Relational Coast Partners, L.P.	Purchase	187	6/14/2011	$	81.15	Open Market
Relational Coast Partners, L.P.	Purchase	773	6/14/2011	$	81.29	Open Market
Relational Coast Partners, L.P.	Purchase	742	6/14/2011	$	81.33	Open Market
Relational Coast Partners, L.P.	Purchase	260	6/14/2011	$	81.12	Open Market
Relational Coast Partners, L.P.	Purchase	26	6/14/2011	$	81.15	Open Market
Relational Coast Partners, L.P.	Purchase	108	6/14/2011	$	81.29	Open Market
Relational Coast Partners, L.P.	Purchase	103	6/14/2011	$	81.33	Open Market
Relational Coast Partners, L.P.	Purchase	36	6/14/2011	$	81.12	Open Market
Relational Fund Partners, L.P.	Purchase	43	6/14/2011	$	81.15	Open Market
Relational Fund Partners, L.P.	Purchase	179	6/14/2011	$	81.29	Open Market
Relational Fund Partners, L.P.	Purchase	172	6/14/2011	$	81.33	Open Market
Relational Fund Partners, L.P.	Purchase	60	6/14/2011	$	81.12	Open Market
Relational Fund Partners, L.P.	Purchase	9	6/14/2011	$	81.15	Open Market
Relational Fund Partners, L.P.	Purchase	39	6/14/2011	$	81.29	Open Market
Relational Fund Partners, L.P.	Purchase	37	6/14/2011	$	81.33	Open Market
Relational Fund Partners, L.P.	Purchase	13	6/14/2011	$	81.13	Open Market
Relational Fund Partners, L.P.	Purchase	1	6/14/2011	$	81.29	Open Market
Relational Fund Partners, L.P.	Purchase	1	6/14/2011	$	81.33	Open Market

Relational Investors Alpha Fund I, L.P.	Purchase	1,142	6/14/2011	$	81.15	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	4,700	6/14/2011	$	81.29	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	4,516	6/14/2011	$	81.33	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	1,585	6/14/2011	$	81.13	Open Market
Relational Investors LLC	Purchase	2,927	6/14/2011	$	81.15	Open Market
Relational Investors LLC	Purchase	12,043	6/14/2011	$	81.29	Open Market
Relational Investors LLC	Purchase	11,572	6/14/2011	$	81.33	Open Market
Relational Investors LLC	Purchase	4,063	6/14/2011	$	81.13	Open Market
Relational Investors, L.P.	Purchase	2,142	6/15/2011	$	80.88	Open Market
Relational Investors, L.P.	Purchase	29,231	6/15/2011	$	80.88	Open Market
RH Fund 1, L.P.	Purchase	1,889	6/15/2011	$	80.88	Open Market
RH Fund 1, L.P.	Purchase	25,779	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	2,248	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	30,679	6/15/2011	$	80.88	Open Market
RH Fund 6, L.P.	Purchase	1,288	6/15/2011	$	80.88	Open Market
RH Fund 6, L.P.	Purchase	17,581	6/15/2011	$	80.88	Open Market
Relational Investors VIII, L.P.	Purchase	5,202	6/15/2011	$	80.88	Open Market
Relational Investors VIII, L.P.	Purchase	70,847	6/15/2011	$	80.88	Open Market
Relational Investors IX, L.P.	Purchase	1,617	6/15/2011	$	80.88	Open Market
Relational Investors IX, L.P.	Purchase	22,068	6/15/2011	$	80.88	Open Market
Relational Investors X, L.P.	Purchase	578	6/15/2011	$	80.88	Open Market
Relational Investors X, L.P.	Purchase	7,897	6/15/2011	$	80.88	Open Market
Relational Investors XV, L.P.	Purchase	570	6/15/2011	$	80.88	Open Market
Relational Investors XV, L.P.	Purchase	7,789	6/15/2011	$	80.88	Open Market
Relational Investors XVI, L.P.	Purchase	536	6/15/2011	$	80.88	Open Market
Relational Investors XVI, L.P.	Purchase	7,313	6/15/2011	$	80.88	Open Market
Relational Investors XX, L.P.	Purchase	539	6/15/2011	$	80.88	Open Market
Relational Investors XX, L.P.	Purchase	7,362	6/15/2011	$	80.88	Open Market
Relational Investors XXII, L.P.	Purchase	832	6/15/2011	$	80.88	Open Market
Relational Investors XXII, L.P.	Purchase	11,356	6/15/2011	$	80.88	Open Market
Relational Investors XXIII, L.P.	Purchase	755	6/15/2011	$	80.88	Open Market
Relational Investors XXIII, L.P.	Purchase	10,308	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	1,116	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	197	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	15,235	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	2,689	6/15/2011	$	80.88	Open Market
Relational Coast Partners, L.P.	Purchase	221	6/15/2011	$	80.88	Open Market
Relational Coast Partners, L.P.	Purchase	3,015	6/15/2011	$	80.88	Open Market
Relational Coast Partners, L.P.	Purchase	30	6/15/2011	$	80.88	Open Market
Relational Coast Partners, L.P.	Purchase	421	6/15/2011	$	80.88	Open Market

Relational Fund Partners, L.P.	Purchase	51	6/15/2011	$	80.88	Open Market
Relational Fund Partners, L.P.	Purchase	701	6/15/2011	$	80.88	Open Market
Relational Fund Partners, L.P.	Purchase	11	6/15/2011	$	80.88	Open Market
Relational Fund Partners, L.P.	Purchase	154	6/15/2011	$	80.88	Open Market
Relational Fund Partners, L.P.	Purchase	6	6/15/2011	$	80.87	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	1,343	6/15/2011	$	80.88	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	18,327	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	3,442	6/15/2011	$	80.88	Open Market
Relational Investors LLC	Purchase	46,961	6/15/2011	$	80.88	Open Market
Relational Investors, L.P.	Purchase	8,707	6/16/2011	$	81.81	Open Market
Relational Investors, L.P.	Purchase	8,254	6/16/2011	$	81.78	Open Market
Relational Investors, L.P.	Purchase	10,448	6/16/2011	$	81.84	Open Market
RH Fund 1, L.P.	Purchase	7,679	6/16/2011	$	81.81	Open Market
RH Fund 1, L.P.	Purchase	7,279	6/16/2011	$	81.78	Open Market
RH Fund 1, L.P.	Purchase	9,214	6/16/2011	$	81.84	Open Market
Relational Investors LLC	Purchase	9,138	6/16/2011	$	81.81	Open Market
Relational Investors LLC	Purchase	8,663	6/16/2011	$	81.78	Open Market
Relational Investors LLC	Purchase	10,966	6/16/2011	$	81.84	Open Market
RH Fund 6, L.P.	Purchase	5,237	6/16/2011	$	81.81	Open Market
RH Fund 6, L.P.	Purchase	4,964	6/16/2011	$	81.78	Open Market
RH Fund 6, L.P.	Purchase	6,284	6/16/2011	$	81.84	Open Market
Relational Investors VIII, L.P.	Purchase	21,106	6/16/2011	$	81.81	Open Market
Relational Investors VIII, L.P.	Purchase	20,012	6/16/2011	$	81.78	Open Market
Relational Investors VIII, L.P.	Purchase	25,329	6/16/2011	$	81.84	Open Market
Relational Investors IX, L.P.	Purchase	6,573	6/16/2011	$	81.81	Open Market
Relational Investors IX, L.P.	Purchase	6,231	6/16/2011	$	81.78	Open Market
Relational Investors IX, L.P.	Purchase	5,522	6/16/2011	$	81.84	Open Market
Relational Investors IX, L.P.	Purchase	2,366	6/16/2011	$	81.84	Open Market
Relational Investors X, L.P.	Purchase	2,352	6/16/2011	$	81.81	Open Market
Relational Investors X, L.P.	Purchase	2,230	6/16/2011	$	81.78	Open Market
Relational Investors X, L.P.	Purchase	2,822	6/16/2011	$	81.84	Open Market
Relational Investors XV, L.P.	Purchase	2,320	6/16/2011	$	81.81	Open Market
Relational Investors XV, L.P.	Purchase	2,199	6/16/2011	$	81.78	Open Market
Relational Investors XV, L.P.	Purchase	2,784	6/16/2011	$	81.84	Open Market

Relational Investors XVI, L.P.	Purchase	2,178	6/16/2011	$	81.81	Open Market
Relational Investors XVI, L.P.	Purchase	2,065	6/16/2011	$	81.78	Open Market
Relational Investors XVI, L.P.	Purchase	2,614	6/16/2011	$	81.84	Open Market
Relational Investors XX, L.P.	Purchase	2,193	6/16/2011	$	81.81	Open Market
Relational Investors XX, L.P.	Purchase	2,079	6/16/2011	$	81.78	Open Market
Relational Investors XX, L.P.	Purchase	2,631	6/16/2011	$	81.84	Open Market
Relational Investors XXII, L.P.	Purchase	3,382	6/16/2011	$	81.81	Open Market
Relational Investors XXII, L.P.	Purchase	3,206	6/16/2011	$	81.78	Open Market
Relational Investors XXII, L.P.	Purchase	4,059	6/16/2011	$	81.84	Open Market
Relational Investors XXIII, L.P.	Purchase	3,070	6/16/2011	$	81.81	Open Market
Relational Investors XXIII, L.P.	Purchase	2,911	6/16/2011	$	81.78	Open Market
Relational Investors XXIII, L.P.	Purchase	3,684	6/16/2011	$	81.84	Open Market
Relational Investors LLC	Purchase	4,538	6/16/2011	$	81.81	Open Market
Relational Investors LLC	Purchase	801	6/16/2011	$	81.81	Open Market
Relational Investors LLC	Purchase	4,302	6/16/2011	$	81.78	Open Market
Relational Investors LLC	Purchase	759	6/16/2011	$	81.78	Open Market
Relational Investors LLC	Purchase	5,446	6/16/2011	$	81.84	Open Market
Relational Investors LLC	Purchase	961	6/16/2011	$	81.84	Open Market
Relational Coast Partners, L.P.	Purchase	898	6/16/2011	$	81.81	Open Market
Relational Coast Partners, L.P.	Purchase	851	6/16/2011	$	81.78	Open Market
Relational Coast Partners, L.P.	Purchase	1,077	6/16/2011	$	81.84	Open Market
Relational Coast Partners, L.P.	Purchase	125	6/16/2011	$	81.81	Open Market
Relational Coast Partners, L.P.	Purchase	119	6/16/2011	$	81.78	Open Market
Relational Coast Partners, L.P.	Purchase	150	6/16/2011	$	81.84	Open Market
Relational Fund Partners, L.P.	Purchase	208	6/16/2011	$	81.81	Open Market
Relational Fund Partners, L.P.	Purchase	198	6/16/2011	$	81.78	Open Market
Relational Fund Partners, L.P.	Purchase	250	6/16/2011	$	81.84	Open Market
Relational Fund Partners, L.P.	Purchase	46	6/16/2011	$	81.80	Open Market
Relational Fund Partners, L.P.	Purchase	43	6/16/2011	$	81.78	Open Market
Relational Fund Partners, L.P.	Purchase	55	6/16/2011	$	81.84	Open Market
Relational Fund Partners, L.P.	Purchase	2	6/16/2011	$	81.80	Open Market
Relational Fund Partners, L.P.	Purchase	1	6/16/2011	$	81.78	Open Market
Relational Fund Partners, L.P.	Purchase	2	6/16/2011	$	81.84	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	5,459	6/16/2011	$	81.81	Open Market

Relational Investors Alpha Fund I, L.P.	Purchase	5,175	6/16/2011	$	81.78	Open Market
Relational Investors Alpha Fund I, L.P.	Purchase	6,550	6/16/2011	$	81.84	Open Market
Relational Investors LLC	Purchase	13,988	6/16/2011	$	81.81	Open Market
Relational Investors LLC	Purchase	13,261	6/16/2011	$	81.78	Open Market
Relational Investors LLC	Purchase	16,786	6/16/2011	$	81.84	Open Market