H I Thomas Dubin

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
ALXN	$57.27	669	$38,313.63	41,593	2011-07-27	Filing
ALXN	$58.48	31,512	$1,842,821.76	42,262	2011-07-25	Filing
ALXN	$50.00	501	$25,050.00	42,262	2011-07-11	Filing
ALXN	$99.27	4,310	$427,853.70	21,632	2011-03-02	Filing
ALXN	$84.70	1,323	$112,058.10	20,942	2011-01-27	Filing
ALXN	$82.66	265	$21,904.90	22,265	2011-01-18	Filing
ALXN	$81.27	280	$22,755.60	22,530	2011-01-10	Filing
ALXN	$75.83	6,045	$458,392.35	22,810	2010-11-29	Filing
ALXN	$75.12	43,955	$3,301,899.60	28,855	2010-11-29	Filing
ALXN	$67.79	20,010	$1,356,477.90	22,810	2010-10-26	Filing
ALXN	$58.14	20,000	$1,162,800.00	9,934	2010-09-03	Filing
ALXN	$51.08	249	$12,718.92	9,934	2010-07-16	Filing
ALXN	$51.91	249	$12,925.59	10,183	2010-07-12	Filing
ALXN	$47.22	249	$11,757.78	4,432	2010-01-19	Filing
ALXN	$47.68	1,382	$65,893.76	4,681	2010-01-11	Filing
ALXN	$42.75	58,044	$2,481,381.00	6,063	2009-07-27	Filing
ALXN	$38.96	238	$9,272.48	12,117	2009-07-16	Filing
ALXN	$36.93	238	$8,789.34	12,355	2009-07-10	Filing
ALXN	$37.43	10,000	$374,300.00	12,593	2009-06-04	Filing
ALXN	$34.25	2,232	$76,446.00	22,593	2009-03-16	Filing