C Gregory Case

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
AON	$99.28	29,116	$2,890,723.83	1,259,458	2015-03-04	Filing
AON	$99.55	29,097	$2,896,606.35	1,238,574	2015-03-03	Filing
AON	$99.90	29,066	$2,903,548.07	1,217,671	2015-03-02	Filing
AON	$100.34	29,091	$2,918,990.94	1,196,737	2015-02-27	Filing
AON	$99.61	29,087	$2,897,385.16	1,175,828	2015-02-26	Filing
AON	$100.59	28,994	$2,916,477.47	1,154,915	2015-02-25	Filing
AON	$100.75	29,019	$2,923,548.17	1,133,909	2015-02-24	Filing
AON	$99.92	29,074	$2,905,074.08	1,112,928	2015-02-23	Filing
AON	$99.54	29,158	$2,902,503.95	1,092,002	2015-02-20	Filing
AON	$100.26	29,089	$2,916,434.05	880,423	2015-02-19	Filing
AON	$100.59	29,049	$2,922,009.86	859,512	2015-02-18	Filing
AON	$100.62	29,012	$2,919,187.44	835,901	2015-02-17	Filing
AON	$101.11	29,001	$2,932,204.11	809,294	2015-02-13	Filing
AON	$100.77	5,051	$508,964.02	790,995	2015-02-12	Filing
AON	$98.75	33,603	$3,318,296.25	788,464	2015-02-11	Filing
AON	$96.99	32,296	$3,132,356.74	772,067	2015-02-10	Filing
AON	$85.94	3,807	$327,173.58	723,525	2014-02-26	Filing
AON	$85.44	61,787	$5,279,081.28	727,332	2014-02-26	Filing
AON	$60.47	95,311	$5,763,265.55	613,692	2013-02-22	Filing
AON	$48.95	82,364	$4,031,717.80	559,198	2012-03-15	Filing