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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview

Overview of all insider trading transactions in ALEXION PHARMACEUTICALS, INC.. Get notifications about new insider transactions in ALEXION PHARMACEUTICALS, INC. for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Oct 31 2007	ALXN	ALEXION PHARMACEUT ...	PARVEN ALVIN S	Director	Sell	M	78.81	100	7,881	13,949	14 K to 13.9 K (-0.71 %)
Oct 31 2007	ALXN	ALEXION PHARMACEUT ...	PARVEN ALVIN S	Director	Buy	M	78.95	11,000	868,450	14,049	3 K to 14 K (+360.77 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	65.87	5	329	28,544	28.5 K to 28.5 K (-0.02 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.00	23	1,449	28,549	28.6 K to 28.5 K (-0.08 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.03	100	6,303	28,572	28.7 K to 28.6 K (-0.35 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.04	1,100	69,344	28,672	29.8 K to 28.7 K (-3.69 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.05	777	48,990	29,772	30.5 K to 29.8 K (-2.54 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.09	200	12,618	30,549	30.7 K to 30.5 K (-0.65 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.11	57	3,597	30,749	30.8 K to 30.7 K (-0.19 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.18	200	12,636	30,806	31 K to 30.8 K (-0.65 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.26	100	6,326	31,006	31.1 K to 31 K (-0.32 %)
Sep 25 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Sell	S	63.40	1,600	101,440	31,106	32.7 K to 31.1 K (-4.89 %)
Sep 12 2007	ALXN	ALEXION PHARMACEUT ...	DUBIN THOMAS I H	SVP & General Couns ...	Sell	S	65.31	514	33,569	15,000	15.5 K to 15 K (-3.31 %)
Sep 12 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	65.31	209	13,650	20,303	20.5 K to 20.3 K (-1.02 %)
Sep 12 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	65.18	200	13,036	105,209	105.4 K to 105.2 K (-0.19 %)
Sep 12 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	65.27	9	587	105,409	105.4 K to 105.4 K (-0.01 %)
Aug 24 2007	ALXN	ALEXION PHARMACEUT ...	MADRI JOSEPH A	Director	Option Exercise	M	10.38	2,000	20,760	0
Aug 24 2007	ALXN	ALEXION PHARMACEUT ...	MADRI JOSEPH A	Director	Sell	S	58.99	100	5,899	58,500	58.6 K to 58.5 K (-0.17 %)
Aug 24 2007	ALXN	ALEXION PHARMACEUT ...	MADRI JOSEPH A	Director	Sell	S	58.98	400	23,592	58,600	59 K to 58.6 K (-0.68 %)
Aug 24 2007	ALXN	ALEXION PHARMACEUT ...	MADRI JOSEPH A	Director	Buy	M	10.38	2,000	20,760	59,000	57 K to 59 K (+3.51 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.50	4,250	44,625	0
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.75	200	11,750	105,418	105.6 K to 105.4 K (-0.19 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.76	1,300	76,388	105,618	106.9 K to 105.6 K (-1.22 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.77	200	11,754	106,918	107.1 K to 106.9 K (-0.19 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.78	100	5,878	107,118	107.2 K to 107.1 K (-0.09 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.79	400	23,516	107,218	107.6 K to 107.2 K (-0.37 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.81	100	5,881	107,618	107.7 K to 107.6 K (-0.09 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.83	100	5,883	107,718	107.8 K to 107.7 K (-0.09 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	58.70	1,850	108,595	107,818	109.7 K to 107.8 K (-1.69 %)
Aug 01 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	10.50	4,250	44,625	109,668	105.4 K to 109.7 K (+4.03 %)
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	M	10.74	2,251	24,176	4,500
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	M	10.74	5,249	56,374	0
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	M	9.50	8,750	83,125	0
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	M	9.00	8,750	78,750	0
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	56.50	20,484	1,157,346	20,512	41 K to 20.5 K (-49.97 %)
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	56.90	4,516	256,960	40,996	45.5 K to 41 K (-9.92 %)
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Buy	M	10.74	2,251	24,176	45,512	43.3 K to 45.5 K (+5.20 %)
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Buy	M	10.74	5,249	56,374	47,763	42.5 K to 47.8 K (+12.35 %)
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Buy	M	9.50	8,750	83,125	42,514	33.8 K to 42.5 K (+25.92 %)
Jul 27 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Buy	M	9.00	8,750	78,750	33,764	25 K to 33.8 K (+34.98 %)
Jul 12 2007	ALXN	ALEXION PHARMACEUT ...	Coissac Patrice	GM/President ALXN S ...	Option Exercise	A	47.66	10,000	476,600	10,000
Jul 12 2007	ALXN	ALEXION PHARMACEUT ...	DUBIN THOMAS I H	SVP & General Couns ...	Option Exercise	A	47.66	12,500	595,750	12,500
Jul 12 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	A	47.66	14,500	691,070	14,500
Jul 12 2007	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Option Exercise	A	47.66	18,000	857,880	18,000
Jul 12 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	A	47.66	20,000	953,200	20,000
Jul 12 2007	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Option Exercise	A	47.66	42,500	2,025,550	42,500
Jun 01 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	M	9.50	8,750	83,125	0
Jun 01 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	M	9.00	16,250	146,250	8,750
Jun 01 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	48.50	25,000	1,212,500	25,014	50 K to 25 K (-49.99 %)
Jun 01 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Buy	M	9.50	8,750	83,125	50,014	41.3 K to 50 K (+21.20 %)
Jun 01 2007	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Buy	M	9.00	16,250	146,250	41,264	25 K to 41.3 K (+64.96 %)
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	M	32.50	10,000	325,000	0
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	M	19.73	7,500	147,975	0
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	M	22.21	7,500	166,575	0
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	M	17.05	5,000	85,250	2,500
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	M	10.74	2,666	28,633	1,334
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	M	15.58	2,500	38,950	5,000
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	M	32.50	10,000	325,000	82,743	72.7 K to 82.7 K (+13.75 %)
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	M	19.73	7,500	147,975	72,743	65.2 K to 72.7 K (+11.50 %)
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	M	22.21	7,500	166,575	65,243	57.7 K to 65.2 K (+12.99 %)
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	M	17.05	5,000	85,250	57,743	52.7 K to 57.7 K (+9.48 %)
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	M	10.74	2,666	28,633	52,743	50.1 K to 52.7 K (+5.32 %)
Jun 13 2007	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	M	15.58	2,500	38,950	50,077	47.6 K to 50.1 K (+5.25 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.02	1,500	70,530	14,152	15.7 K to 14.2 K (-9.58 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.03	3,540	166,486	15,652	19.2 K to 15.7 K (-18.45 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.04	1,660	78,086	19,192	20.9 K to 19.2 K (-7.96 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.05	2,100	98,805	20,852	23 K to 20.9 K (-9.15 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.06	1,700	80,002	22,952	24.7 K to 23 K (-6.90 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.07	1,179	55,496	24,652	25.8 K to 24.7 K (-4.56 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.08	3,346	157,530	25,831	29.2 K to 25.8 K (-11.47 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.09	5,140	242,043	29,177	34.3 K to 29.2 K (-14.98 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.10	9,019	424,795	34,317	43.3 K to 34.3 K (-20.81 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	P	47.11	5,023	236,634	43,336	48.4 K to 43.3 K (-10.39 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.12	4,961	233,762	48,359	53.3 K to 48.4 K (-9.30 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.13	3,423	161,326	53,320	56.7 K to 53.3 K (-6.03 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.14	2,977	140,336	56,743	59.7 K to 56.7 K (-4.98 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.15	5,660	266,869	59,720	65.4 K to 59.7 K (-8.66 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.16	3,240	152,798	65,380	68.6 K to 65.4 K (-4.72 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.17	2,500	117,925	68,620	71.1 K to 68.6 K (-3.52 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.18	2,900	136,822	71,120	74 K to 71.1 K (-3.92 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.19	975	46,010	74,020	75 K to 74 K (-1.30 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.20	4,025	189,980	74,995	79 K to 75 K (-5.09 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.21	1,181	55,755	79,020	80.2 K to 79 K (-1.47 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.22	2,372	112,006	80,201	82.6 K to 80.2 K (-2.87 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.23	1,422	67,161	82,573	84 K to 82.6 K (-1.69 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.24	800	37,792	84,005	84.8 K to 84 K (-0.94 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.25	800	37,800	84,805	85.6 K to 84.8 K (-0.93 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.26	1,378	65,124	85,605	87 K to 85.6 K (-1.58 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.27	800	37,816	86,983	87.8 K to 87 K (-0.91 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.28	2,600	122,928	87,783	90.4 K to 87.8 K (-2.88 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.29	3,100	146,599	90,383	93.5 K to 90.4 K (-3.32 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.30	1,700	80,410	93,483	95.2 K to 93.5 K (-1.79 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.31	1,322	62,544	95,183	96.5 K to 95.2 K (-1.37 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.32	300	14,196	96,505	96.8 K to 96.5 K (-0.31 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.33	3,400	160,922	96,805	100.2 K to 96.8 K (-3.39 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.34	900	42,606	100,205	101.1 K to 100.2 K (-0.89 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.35	1,300	61,555	101,105	102.4 K to 101.1 K (-1.27 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.36	2,400	113,664	102,405	104.8 K to 102.4 K (-2.29 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.37	1,230	58,265	104,805	106 K to 104.8 K (-1.16 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.38	570	27,007	106,035	106.6 K to 106 K (-0.53 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.39	800	37,912	106,605	107.4 K to 106.6 K (-0.74 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.40	100	4,740	107,405	107.5 K to 107.4 K (-0.09 %)
May 09 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.50	9,375	98,438	9,375
May 09 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	47.00	9,375	440,625	105,418	114.8 K to 105.4 K (-8.17 %)
May 09 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	10.50	9,375	98,438	114,793	105.4 K to 114.8 K (+8.89 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	41.15	625	25,719	7,055
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	32.70	1,875	61,313	4,006
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	20.72	3,750	77,700	8,250
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	27.58	2,250	62,055	3,750
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	20.38	3,000	61,140	1,125
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	16.10	140	2,254	2,250
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	16.10	7,360	118,496	2,250
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	23.29	3,090	71,966	2,595
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	23.29	8,160	190,046	1,155
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	17.67	5,625	99,394	1,250
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	17.67	3,125	55,219	0
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	10.74	1,875	20,138	0
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	21.00	416	8,736	0
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	21.00	25,584	537,264	0
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	9.50	15,000	142,500	0
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	M	9.00	22,000	198,000	0
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.51	1,100	52,261	107,505	108.6 K to 107.5 K (-1.01 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.55	200	9,510	108,605	108.8 K to 108.6 K (-0.18 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.56	500	23,780	108,805	109.3 K to 108.8 K (-0.46 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.57	400	19,028	109,305	109.7 K to 109.3 K (-0.36 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.60	700	33,320	109,705	110.4 K to 109.7 K (-0.63 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.62	200	9,524	110,405	110.6 K to 110.4 K (-0.18 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.63	1,000	47,630	110,605	111.6 K to 110.6 K (-0.90 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.66	400	19,064	111,605	112 K to 111.6 K (-0.36 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.72	200	9,544	112,005	112.2 K to 112 K (-0.18 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.73	100	4,773	112,205	112.3 K to 112.2 K (-0.09 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.77	100	4,777	112,305	112.4 K to 112.3 K (-0.09 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.79	100	4,779	112,405	112.5 K to 112.4 K (-0.09 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.80	200	9,560	112,505	112.7 K to 112.5 K (-0.18 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.83	200	9,566	112,705	112.9 K to 112.7 K (-0.18 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.87	500	23,935	112,905	113.4 K to 112.9 K (-0.44 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.89	1,000	47,890	113,405	114.4 K to 113.4 K (-0.87 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.92	400	19,168	114,405	114.8 K to 114.4 K (-0.35 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	47.94	100	4,794	114,805	114.9 K to 114.8 K (-0.09 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	48.00	1,495	71,760	114,905	116.4 K to 114.9 K (-1.28 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	48.01	200	9,602	116,390	116.6 K to 116.4 K (-0.17 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	48.02	800	38,416	116,590	117.4 K to 116.6 K (-0.68 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	48.03	532	25,552	117,390	117.9 K to 117.4 K (-0.45 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	48.04	5	240	117,922	117.9 K to 117.9 K (0.00 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Sell	S	48.06	100	4,806	117,927	118 K to 117.9 K (-0.08 %)
May 31 2007	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Buy	M	0.00	103,875	0	118,027	14.2 K to 118 K (+734.00 %)
May 07 2007	ALXN	ALEXION PHARMACEUT ...	Waeger Ruedi E	Director	Option Exercise	A	43.36	7,500	325,200	7,500
May 07 2007	ALXN	ALEXION PHARMACEUT ...	MATHIS LARRY	Director	Option Exercise	A	43.36	7,500	325,200	7,500
May 07 2007	ALXN	ALEXION PHARMACEUT ...	NORBY R DOUGLAS	Director	Option Exercise	A	43.36	7,500	325,200	7,500
May 07 2007	ALXN	ALEXION PHARMACEUT ...	MADRI JOSEPH A	Director	Option Exercise	A	43.36	7,500	325,200	7,500

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