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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
Apr 11 2006	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Grant	A	0.00	3,706	0	27,706	24 K to 27.7 K (+15.44 %)
Apr 11 2006	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Grant	A	0.00	3,721	0	11,721	8 K to 11.7 K (+46.51 %)
Apr 11 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Grant	A	0.00	4,272	0	12,272	8 K to 12.3 K (+53.40 %)
Apr 11 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	0.00	5,409	0	96,418	91 K to 96.4 K (+5.94 %)
Apr 11 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Grant	A	0.00	10,088	0	321,599	311.5 K to 321.6 K (+3.24 %)
Mar 14 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.00	3,005	30,050	0
Mar 14 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	38.35	3,005	115,242	91,009	94 K to 91 K (-3.20 %)
Mar 14 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	10.00	3,005	30,050	94,014	91 K to 94 K (+3.30 %)
Mar 14 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	M	10.00	8,907	89,070	0
Mar 14 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	38.35	8,907	341,583	311,511	320.4 K to 311.5 K (-2.78 %)
Mar 14 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Buy	M	10.00	8,907	89,070	320,418	311.5 K to 320.4 K (+2.86 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	M	10.50	5,000	52,500	11,875
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	35.08	100	3,508	8,000	8.1 K to 8 K (-1.23 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	35.06	500	17,531	8,100	8.6 K to 8.1 K (-5.81 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	35.06	500	17,530	8,600	9.1 K to 8.6 K (-5.49 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	35.05	948	33,227	9,100	10 K to 9.1 K (-9.43 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Sell	S	35.00	2,952	103,320	10,048	13 K to 10 K (-22.71 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Buy	M	10.50	5,000	52,500	13,000	8 K to 13 K (+62.50 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	M	10.00	10,000	100,000	783
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	35.01	10,000	350,100	311,511	321.5 K to 311.5 K (-3.11 %)
Feb 21 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Buy	M	10.00	10,000	100,000	321,511	311.5 K to 321.5 K (+3.21 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.00	20,000	200,000	3,005
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.15	240	7,236	91,009	91.2 K to 91 K (-0.26 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.16	240	7,238	91,249	91.5 K to 91.2 K (-0.26 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.17	480	14,482	91,489	92 K to 91.5 K (-0.52 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.19	80	2,415	91,969	92 K to 92 K (-0.09 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.20	3,198	96,580	92,049	95.2 K to 92 K (-3.36 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.21	80	2,417	95,247	95.3 K to 95.2 K (-0.08 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.22	8,160	246,595	95,327	103.5 K to 95.3 K (-7.89 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	30.23	7,522	227,390	103,487	111 K to 103.5 K (-6.78 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	10.00	20,000	200,000	111,009	91 K to 111 K (+21.98 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	M	10.00	15,000	150,000	10,783
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.15	60	1,809	311,511	311.6 K to 311.5 K (-0.02 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.16	60	1,810	311,571	311.6 K to 311.6 K (-0.02 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.17	120	3,620	311,631	311.8 K to 311.6 K (-0.04 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.19	20	604	311,751	311.8 K to 311.8 K (-0.01 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.20	799	24,130	311,771	312.6 K to 311.8 K (-0.26 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.21	20	604	312,570	312.6 K to 312.6 K (-0.01 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.22	2,040	61,649	312,590	314.6 K to 312.6 K (-0.65 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	30.23	1,881	56,863	314,630	316.5 K to 314.6 K (-0.59 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	29.55	7,700	227,535	316,511	324.2 K to 316.5 K (-2.37 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	29.60	2,300	68,080	324,211	326.5 K to 324.2 K (-0.70 %)
Feb 03 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Buy	M	10.00	15,000	150,000	326,511	311.5 K to 326.5 K (+4.82 %)
Feb 01 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	M	10.00	10,000	100,000	25,783
Feb 01 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	28.40	10,000	284,000	311,511	321.5 K to 311.5 K (-3.11 %)
Feb 01 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Buy	M	10.00	10,000	100,000	321,511	311.5 K to 321.5 K (+3.21 %)
Jan 11 2006	ALXN	ALEXION PHARMACEUT ...	Waeger Ruedi E	Director	Grant	A	20.72	2,000	41,440	2,000	0 to 2 K
Jan 11 2006	ALXN	ALEXION PHARMACEUT ...	NORBY R DOUGLAS	Director	Grant	A	20.72	2,000	41,440	2,000	0 to 2 K
Jan 11 2006	ALXN	ALEXION PHARMACEUT ...	PARVEN ALVIN S	Director	Grant	A	20.72	2,000	41,440	3,049	1 K to 3 K (+190.66 %)
Jan 11 2006	ALXN	ALEXION PHARMACEUT ...	MATHIS LARRY	Director	Grant	A	20.72	2,000	41,440	5,000	3 K to 5 K (+66.67 %)
Jan 11 2006	ALXN	ALEXION PHARMACEUT ...	MADRI JOSEPH A	Director	Grant	A	20.72	2,000	41,440	57,000	55 K to 57 K (+3.64 %)
Jan 11 2006	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Grant	A	20.72	2,000	41,440	62,157	60.2 K to 62.2 K (+3.32 %)
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Option Exercise	A	20.72	10,000	207,200	10,000
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Grant	A	20.72	4,000	82,880	24,000	20 K to 24 K (+20.00 %)
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	Coissac Patrice	GM/President-ALXN E ...	Option Exercise	A	20.72	8,000	165,760	8,000
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	Coissac Patrice	GM/President-ALXN E ...	Grant	A	20.72	3,000	62,160	13,000	10 K to 13 K (+30.00 %)
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	A	20.72	8,000	165,760	8,000
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Grant	A	20.72	3,000	62,160	6,000	3 K to 6 K (+100.00 %)
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	DUBIN THOMAS I H	SVP & General Couns ...	Option Exercise	A	20.72	8,000	165,760	8,000
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	DUBIN THOMAS I H	SVP & General Couns ...	Grant	A	20.72	3,000	62,160	18,000	15 K to 18 K (+20.00 %)
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	A	20.72	10,000	207,200	10,000
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Grant	A	20.72	4,000	82,880	8,000	4 K to 8 K (+100.00 %)
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	A	20.72	10,000	207,200	10,000
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	20.72	4,000	82,880	91,009	87 K to 91 K (+4.60 %)
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	A	20.72	24,500	507,640	24,500
Jan 10 2006	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Grant	A	20.72	11,250	233,100	311,511	300.3 K to 311.5 K (+3.75 %)
Dec 13 2005	ALXN	ALEXION PHARMACEUT ...	Waeger Ruedi E	Director	Option Exercise	A	19.73	7,500	147,975	7,500
Dec 13 2005	ALXN	ALEXION PHARMACEUT ...	MATHIS LARRY	Director	Option Exercise	A	19.73	7,500	147,975	7,500
Dec 13 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	A	19.73	7,500	147,975	7,500
Dec 13 2005	ALXN	ALEXION PHARMACEUT ...	NORBY R DOUGLAS	Director	Option Exercise	A	19.73	7,500	147,975	7,500
Dec 13 2005	ALXN	ALEXION PHARMACEUT ...	PARVEN ALVIN S	Director	Option Exercise	A	19.73	7,500	147,975	7,500
Dec 13 2005	ALXN	ALEXION PHARMACEUT ...	MADRI JOSEPH A	Director	Option Exercise	A	19.73	7,500	147,975	7,500
Nov 09 2005	ALXN	ALEXION PHARMACEUT ...	Coissac Patrice	GM/President-ALXN E ...	Option Exercise	A	28.16	20,000	563,200	20,000
Nov 09 2005	ALXN	ALEXION PHARMACEUT ...	Coissac Patrice	GM/President-ALXN E ...	Grant	A	0.00	10,000	0	10,000	0 to 10 K
Nov 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	M	10.00	5,000	50,000	35,783
Nov 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.00	5,000	135,000	300,261	305.3 K to 300.3 K (-1.64 %)
Nov 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Buy	M	10.00	5,000	50,000	305,261	300.3 K to 305.3 K (+1.67 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.94	400	10,776	57,657	57.3 K to 57.7 K (+0.70 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.93	1,040	28,007	57,257	56.2 K to 57.3 K (+1.85 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.92	100	2,692	56,217	56.1 K to 56.2 K (+0.18 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.90	100	2,690	56,117	56 K to 56.1 K (+0.18 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.89	160	4,302	56,017	55.9 K to 56 K (+0.29 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.86	100	2,686	55,857	55.8 K to 55.9 K (+0.18 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.85	300	8,055	55,757	55.5 K to 55.8 K (+0.54 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.84	100	2,684	55,457	55.4 K to 55.5 K (+0.18 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.83	300	8,049	55,357	55.1 K to 55.4 K (+0.54 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.82	6,000	160,920	55,057	49.1 K to 55.1 K (+12.23 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.81	100	2,681	49,057	49 K to 49.1 K (+0.20 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.80	200	5,360	48,957	48.8 K to 49 K (+0.41 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.79	500	13,395	48,757	48.3 K to 48.8 K (+1.04 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.78	100	2,678	48,257	48.2 K to 48.3 K (+0.21 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.74	100	2,674	48,157	48.1 K to 48.2 K (+0.21 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.73	100	2,673	48,057	48 K to 48.1 K (+0.21 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.71	500	13,355	47,957	47.5 K to 48 K (+1.05 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.70	700	18,690	47,457	46.8 K to 47.5 K (+1.50 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.68	100	2,668	46,757	46.7 K to 46.8 K (+0.21 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.67	100	2,667	46,657	46.6 K to 46.7 K (+0.21 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.66	500	13,330	46,557	46.1 K to 46.6 K (+1.09 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.65	400	10,660	46,057	45.7 K to 46.1 K (+0.88 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.64	300	7,992	45,657	45.4 K to 45.7 K (+0.66 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.63	300	7,989	45,357	45.1 K to 45.4 K (+0.67 %)
Oct 11 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	26.62	2,400	63,888	45,057	42.7 K to 45.1 K (+5.63 %)
Nov 02 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Option Exercise	D	21.76	2,500	54,400	0
Nov 02 2005	ALXN	ALEXION PHARMACEUT ...	LINK MAX	Director	Buy	P	21.76	2,500	54,400	60,157	57.7 K to 60.2 K (+4.34 %)
Oct 31 2005	ALXN	ALEXION PHARMACEUT ...	MATHIS LARRY	Director	Buy	P	26.26	1,000	26,255	3,000	2 K to 3 K (+50.00 %)
Oct 17 2005	ALXN	ALEXION PHARMACEUT ...	PARVEN ALVIN S	Director	Buy	P	26.74	225	6,017	1,049	824 to 1 K (+27.31 %)
Oct 17 2005	ALXN	ALEXION PHARMACEUT ...	PARVEN ALVIN S	Director	Buy	P	26.74	824	22,034	824	0 to 824
Oct 07 2005	ALXN	ALEXION PHARMACEUT ...	MATHIS LARRY	Director	Buy	P	26.52	1,000	26,520	2,000	1,000 to 2 K (+100.00 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.00	5,568	55,680	0
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	10.00	5,568	55,680	87,009	81.4 K to 87 K (+6.84 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Payment of Exercise	F	28.03	1,986	55,668	81,441	83.4 K to 81.4 K (-2.38 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	M	10.00	5,000	50,000	40,783
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.50	2,600	71,500	300,261	302.9 K to 300.3 K (-0.86 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.51	800	22,008	302,861	303.7 K to 302.9 K (-0.26 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.52	100	2,752	303,661	303.8 K to 303.7 K (-0.03 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.54	700	19,278	303,761	304.5 K to 303.8 K (-0.23 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.55	300	8,265	304,461	304.8 K to 304.5 K (-0.10 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.56	100	2,756	304,761	304.9 K to 304.8 K (-0.03 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.58	300	8,274	304,861	305.2 K to 304.9 K (-0.10 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	27.59	100	2,759	305,161	305.3 K to 305.2 K (-0.03 %)
Oct 04 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Buy	M	10.00	5,000	50,000	305,261	300.3 K to 305.3 K (+1.67 %)
Sep 22 2005	ALXN	ALEXION PHARMACEUT ...	MOJCIK CHRISTOPHER F	SVP Clinical Develo ...	Option Exercise	A	27.58	6,000	165,480	6,000
Sep 23 2005	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Option Exercise	A	27.58	85,000	2,344,300	85,000
Sep 23 2005	ALXN	ALEXION PHARMACEUT ...	Sinha Vikas	SVP & Chief Financi ...	Grant	A	0.00	20,000	0	20,000	0 to 20 K
Sep 22 2005	ALXN	ALEXION PHARMACEUT ...	DUBIN THOMAS I H	SVP & General Couns ...	Option Exercise	A	27.58	6,000	165,480	6,000
Sep 22 2005	ALXN	ALEXION PHARMACEUT ...	SQUINTO STEPHEN P	EVP & Head of Resea ...	Option Exercise	A	27.58	8,000	220,640	8,000
Sep 22 2005	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	A	27.58	8,000	220,640	8,000
Sep 07 2005	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.00	21,427	214,270	5,568
Sep 07 2005	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	10.00	21,427	214,270	83,427	62 K to 83.4 K (+34.56 %)
Sep 07 2005	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Payment of Exercise	F	28.57	7,500	214,275	62,000	69.5 K to 62 K (-10.79 %)
Sep 22 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	A	27.58	22,500	620,550	22,500
Sep 01 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Option Exercise	M	10.00	5,000	50,000	45,783
Sep 01 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Sell	S	28.70	5,000	143,500	300,261	305.3 K to 300.3 K (-1.64 %)
Sep 01 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	Chief Executive Off ...	Buy	M	10.00	5,000	50,000	305,261	300.3 K to 305.3 K (+1.67 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Option Exercise	M	10.00	11,093	110,930	0
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Option Exercise	M	10.00	5,000	50,000	50,783
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Buy	M	10.00	11,093	110,930	300,261	289.2 K to 300.3 K (+3.84 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Payment of Exercise	F	26.24	4,227	110,916	289,168	293.4 K to 289.2 K (-1.44 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Sell	S	26.05	3,132	81,589	293,395	296.5 K to 293.4 K (-1.06 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Sell	S	26.10	1,468	38,315	296,527	298 K to 296.5 K (-0.49 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Sell	S	26.11	100	2,611	297,995	298.1 K to 298 K (-0.03 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Sell	S	26.12	200	5,224	298,095	298.3 K to 298.1 K (-0.07 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Sell	S	26.14	100	2,614	298,295	298.4 K to 298.3 K (-0.03 %)
Aug 03 2005	ALXN	ALEXION PHARMACEUT ...	BELL LEONARD	CEO	Buy	M	10.00	5,000	50,000	298,395	293.4 K to 298.4 K (+1.70 %)
Jul 18 2005	ALXN	ALEXION PHARMACEUT ...	LUKE BARRY P	VP, Finance & Admin ...	Option Exercise	M	10.00	15,000	150,000	10,000
Jul 18 2005	ALXN	ALEXION PHARMACEUT ...	LUKE BARRY P	VP, Finance & Admin ...	Sell	S	24.88	2,500	62,209	24,800	27.3 K to 24.8 K (-9.16 %)
Jul 18 2005	ALXN	ALEXION PHARMACEUT ...	LUKE BARRY P	VP, Finance & Admin ...	Sell	S	24.86	2,500	62,156	27,300	29.8 K to 27.3 K (-8.39 %)
Jul 18 2005	ALXN	ALEXION PHARMACEUT ...	LUKE BARRY P	VP, Finance & Admin ...	Sell	S	24.78	5,000	123,892	29,800	34.8 K to 29.8 K (-14.37 %)
Jul 18 2005	ALXN	ALEXION PHARMACEUT ...	LUKE BARRY P	VP, Finance & Admin ...	Sell	S	24.75	5,000	123,750	34,800	39.8 K to 34.8 K (-12.56 %)
Jul 18 2005	ALXN	ALEXION PHARMACEUT ...	LUKE BARRY P	VP, Finance & Admin ...	Buy	M	10.00	15,000	150,000	39,800	24.8 K to 39.8 K (+60.48 %)

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