DAVID W KEISER Insider Trading $ALXN ALEXION PHARMACEUTICALS, INC.

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of DAVID W KEISER. DAVID W KEISER is Director in ALEXION PHARMACEUTICALS INC ($ALXN) and President & Chief Op. Officer in ALEXION PHARMACEUTICALS INC ($ALXN) and President & Chief Oper Officer in ALEXION PHARMACEUTICALS INC ($ALXN) and President & Chief Operating Of in ALEXION PHARMACEUTICALS INC ($ALXN) and President & COO in ALEXION PHARMACEUTICALS INC ($ALXN) and President, Chief Operating Off in ALEXION PHARMACEUTICALS INC ($ALXN).

DAVID W KEISER in ALEXION PHARMACEUTICALS, INC.

Trading Symbol: ALXN
Industry: PHARMACEUTICAL PREPARATIONS [2834]
Position of DAVID W KEISER: Director, President & COO, President & Chief Op. Officer, President & Chief Oper Officer, President & Chief Operating Of, President, Chief Operating Off
Holdings: 149,546 shares
Current Value: $19,100,015
Latest Transaction: Jun 03 2009
$ALXN Market Capitalization: $28.30B
$ALXN Previous Close: $127.72

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD

Latest Insider Trading Transactions of DAVID W KEISER in ALEXION PHARMACEUTICALS, INC.

	1 Week	2 Weeks	1 Month	3 Months	6 Months	1 Year	2 Years
No. of Purchases	0	0	0	0	0	0	0
Value of Purchases ($)	0	0	0	0	0	0	0
No. of Sales	0	0	0	0	0	0	0
Value of Sales ($)	0	0	0	0	0	0	0

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	32.25	15,250	491,813	0
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	20.83	17,500	364,525	0
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	20.58	4,810	98,990	0
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	20.58	2,440	50,215	0
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	36.63	10,000	366,300	149,546	159.5 K to 149.5 K (-6.27 %)
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	37.25	1,800	67,050	159,546	161.3 K to 159.5 K (-1.12 %)
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	36.59	38,200	1,397,738	161,346	199.5 K to 161.3 K (-19.14 %)
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	32.25	15,250	491,813	199,546	184.3 K to 199.5 K (+8.27 %)
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	20.83	17,500	364,525	184,296	166.8 K to 184.3 K (+10.49 %)
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	20.58	4,810	98,990	166,796	162 K to 166.8 K (+2.97 %)
Jun 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	20.58	2,440	50,215	161,986	159.5 K to 162 K (+1.53 %)
May 12 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	35.01	7,800	273,078	159,546	167.3 K to 159.5 K (-4.66 %)
May 08 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	35.00	2,200	77,000	167,346	169.5 K to 167.3 K (-1.30 %)
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	20.58	15,250	313,845	2,440
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	16.35	16,500	269,775	0
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	10.36	1,250	12,950	0
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	13.79	7,000	96,530	0
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	33.40	1,900	63,460	169,546	171.4 K to 169.5 K (-1.11 %)
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	32.77	38,100	1,248,537	171,446	209.5 K to 171.4 K (-18.18 %)
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	20.58	15,250	313,845	209,546	194.3 K to 209.5 K (+7.85 %)
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	16.35	16,500	269,775	194,296	177.8 K to 194.3 K (+9.28 %)
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	10.36	1,250	12,950	177,796	176.5 K to 177.8 K (+0.71 %)
May 05 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	13.79	7,000	96,530	176,546	169.5 K to 176.5 K (+4.13 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	S	13.79	7,000	96,530	6,000
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	S	11.65	5,760	67,104	0
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	S	11.65	14,240	165,896	0
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	S	10.19	1,000	10,190	0
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	S	10.50	1,178	12,369	0
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	10.50	10,822	113,631	0
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	36.78	3,500	128,730	169,546	173 K to 169.5 K (-2.02 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	35.92	6,500	233,480	173,046	179.5 K to 173 K (-3.62 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	36.78	2,337	85,955	179,546	181.9 K to 179.5 K (-1.28 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	36.00	5,200	187,200	181,883	187.1 K to 181.9 K (-2.78 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	35.95	696	25,021	187,083	187.8 K to 187.1 K (-0.37 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	36.76	16,000	588,160	187,779	203.8 K to 187.8 K (-7.85 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	35.92	24,000	862,080	203,779	227.8 K to 203.8 K (-10.54 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	13.79	7,000	96,530	227,779	220.8 K to 227.8 K (+3.17 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	11.65	5,760	67,104	220,779	215 K to 220.8 K (+2.68 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	11.65	14,240	165,896	215,019	200.8 K to 215 K (+7.09 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	10.19	1,000	10,190	200,779	199.8 K to 200.8 K (+0.50 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	10.50	1,178	12,369	199,779	198.6 K to 199.8 K (+0.59 %)
Apr 03 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	10.50	10,822	113,631	198,601	187.8 K to 198.6 K (+5.76 %)
Mar 18 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	34.25	3,281	112,374	187,779	191.1 K to 187.8 K (-1.72 %)
Mar 16 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	35.01	10,000	350,100	191,060	201.1 K to 191.1 K (-4.97 %)
Mar 12 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	32.34	304	9,831	201,060	201.4 K to 201.1 K (-0.15 %)
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	10.50	25,118	263,739	10,822
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	10.36	6,250	64,750	1,250
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	10.19	4,000	40,760	0
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	8.05	4,632	37,288	0
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	33.80	8,600	290,680	201,364	210 K to 201.4 K (-4.10 %)
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	32.62	31,400	1,024,268	209,964	241.4 K to 210 K (-13.01 %)
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	10.50	25,118	263,739	241,364	216.2 K to 241.4 K (+11.62 %)
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	10.36	6,250	64,750	216,246	210 K to 216.2 K (+2.98 %)
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	10.19	4,000	40,760	209,996	206 K to 210 K (+1.94 %)
Mar 04 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	8.05	4,632	37,288	205,996	201.4 K to 206 K (+2.30 %)
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	32.25	20,000	645,000	35,386
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	35.30	104	3,671	0
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Option Exercise	M	35.30	19,896	702,329	0
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	39.46	10,000	394,600	201,364	211.4 K to 201.4 K (-4.73 %)
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	39.47	4,890	193,008	211,364	216.3 K to 211.4 K (-2.26 %)
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	39.44	625	24,650	216,254	216.9 K to 216.3 K (-0.29 %)
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	39.47	40,000	1,578,800	216,879	256.9 K to 216.9 K (-15.57 %)
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	32.25	20,000	645,000	256,879	236.9 K to 256.9 K (+8.44 %)
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	35.30	104	3,671	236,879	236.8 K to 236.9 K (+0.04 %)
Feb 19 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Buy	M	35.30	19,896	702,329	236,775	216.9 K to 236.8 K (+9.17 %)
Jan 16 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	36.90	2,110	77,859	216,879	219 K to 216.9 K (-0.96 %)
Jan 14 2009	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	Director	Sell	S	34.51	375	12,941	218,989	219.4 K to 219 K (-0.17 %)
Sep 12 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	40.36	319	12,875	219,045	219.4 K to 219 K (-0.15 %)
Sep 12 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	40.12	319	12,798	219,045	219.4 K to 219 K (-0.15 %)
Aug 01 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	21.00	10,000	210,000	17,970
Aug 01 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	90.00	10,000	900,000	109,682	119.7 K to 109.7 K (-8.36 %)
Aug 01 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	21.00	10,000	210,000	119,682	109.7 K to 119.7 K (+9.12 %)
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	20.72	4,375	90,650	1,875
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	20.38	5,500	112,090	0
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	17.67	1,184	20,921	0
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	21.00	8,941	187,761	29,970
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	80.00	20,000	1,600,000	109,682	129.7 K to 109.7 K (-15.42 %)
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	20.72	4,375	90,650	129,682	125.3 K to 129.7 K (+3.49 %)
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	20.38	5,500	112,090	125,307	119.8 K to 125.3 K (+4.59 %)
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	17.67	1,184	20,921	119,807	118.6 K to 119.8 K (+1.00 %)
Jul 25 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	21.00	8,941	187,761	118,623	109.7 K to 118.6 K (+8.15 %)
Jul 11 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	75.75	159	12,044	109,682	109.8 K to 109.7 K (-0.14 %)
Jul 03 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	17.67	3,056	54,000	1,184
Jul 03 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	17.67	7,760	137,119	0
Jul 03 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	16.10	9,184	147,862	0
Jul 03 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	71.87	20,000	1,437,400	109,841	129.8 K to 109.8 K (-15.40 %)
Jul 03 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	17.67	3,056	54,000	129,841	126.8 K to 129.8 K (+2.41 %)
Jul 03 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	17.67	7,760	137,119	126,785	119 K to 126.8 K (+6.52 %)
Jul 03 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	16.10	9,184	147,862	119,025	109.8 K to 119 K (+8.36 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	16.10	500	8,050	9,184
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	11.99	7,501	89,937	0
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	11.99	7,499	89,913	0
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.74	6,750	72,495	0
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	10.74	5,250	56,385	0
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	9.50	12,270	116,565	0
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	M	9.50	10,230	97,185	0
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.24	100	7,024	109,841	109.9 K to 109.8 K (-0.09 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.12	500	35,060	109,941	110.4 K to 109.9 K (-0.45 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.10	200	14,020	110,441	110.6 K to 110.4 K (-0.18 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.09	2,800	196,252	110,641	113.4 K to 110.6 K (-2.47 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.08	100	7,008	113,441	113.5 K to 113.4 K (-0.09 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.08	200	14,016	113,541	113.7 K to 113.5 K (-0.18 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.07	705	49,399	113,741	114.4 K to 113.7 K (-0.62 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.05	303	21,225	114,446	114.7 K to 114.4 K (-0.26 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.04	1,372	96,095	114,749	116.1 K to 114.7 K (-1.18 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.04	100	7,004	116,121	116.2 K to 116.1 K (-0.09 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.04	1,800	126,072	116,221	118 K to 116.2 K (-1.53 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.03	800	56,024	118,021	118.8 K to 118 K (-0.67 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.03	700	49,021	118,821	119.5 K to 118.8 K (-0.59 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.03	100	7,003	119,521	119.6 K to 119.5 K (-0.08 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.02	1,400	98,028	119,621	121 K to 119.6 K (-1.16 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.02	2,700	189,054	121,021	123.7 K to 121 K (-2.18 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.01	5,406	378,474	123,721	129.1 K to 123.7 K (-4.19 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.01	2,300	161,023	129,127	131.4 K to 129.1 K (-1.75 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	70.00	28,414	1,988,980	131,427	159.8 K to 131.4 K (-17.78 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	16.10	500	8,050	159,841	159.3 K to 159.8 K (+0.31 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	11.99	7,501	89,937	159,341	151.8 K to 159.3 K (+4.94 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	11.99	7,499	89,913	151,840	144.3 K to 151.8 K (+5.20 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	10.74	6,750	72,495	144,341	137.6 K to 144.3 K (+4.91 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	10.74	5,250	56,385	137,591	132.3 K to 137.6 K (+3.97 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	9.50	12,270	116,565	132,341	120.1 K to 132.3 K (+10.22 %)
May 02 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	9.50	10,230	97,185	120,071	109.8 K to 120.1 K (+9.31 %)
Mar 12 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	56.05	159	8,912	109,841	110 K to 109.8 K (-0.14 %)
Jan 11 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	A	70.59	40,000	2,823,600	40,000
Jan 11 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	69.02	709	48,935	110,000	110.7 K to 110 K (-0.64 %)
Jan 11 2008	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Grant	A	0.00	5,500	0	110,709	105.2 K to 110.7 K (+5.23 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	S	9.00	12,500	112,500	0
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	74.75	10,332	772,317	105,209	115.5 K to 105.2 K (-8.94 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	75.05	500	37,525	115,541	116 K to 115.5 K (-0.43 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	75.06	768	57,646	116,041	116.8 K to 116 K (-0.66 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	75.07	200	15,014	116,809	117 K to 116.8 K (-0.17 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	75.08	300	22,524	117,009	117.3 K to 117 K (-0.26 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	75.09	200	15,018	117,309	117.5 K to 117.3 K (-0.17 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	75.15	200	15,030	117,509	117.7 K to 117.5 K (-0.17 %)
Dec 14 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	9.00	12,500	112,500	117,709	105.2 K to 117.7 K (+11.88 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Option Exercise	S	9.00	12,500	112,500	2,214
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.43	1,700	129,931	105,209	106.9 K to 105.2 K (-1.59 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.44	200	15,288	106,909	107.1 K to 106.9 K (-0.19 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.45	103	7,874	107,109	107.2 K to 107.1 K (-0.10 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.46	250	19,115	107,212	107.5 K to 107.2 K (-0.23 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.40	247	18,871	107,462	107.7 K to 107.5 K (-0.23 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.32	1,888	144,092	107,709	109.6 K to 107.7 K (-1.72 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.31	484	36,934	109,597	110.1 K to 109.6 K (-0.44 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.30	200	15,260	110,081	110.3 K to 110.1 K (-0.18 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.29	200	15,258	110,281	110.5 K to 110.3 K (-0.18 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.28	100	7,628	110,481	110.6 K to 110.5 K (-0.09 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.18	200	15,236	110,581	110.8 K to 110.6 K (-0.18 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.16	300	22,848	110,781	111.1 K to 110.8 K (-0.27 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Sell	S	76.15	6,628	504,722	111,081	117.7 K to 111.1 K (-5.63 %)
Nov 02 2007	ALXN	ALEXION PHARMACEUT ...	KEISER DAVID W	President & COO	Buy	M	9.00	12,500	112,500	117,709	105.2 K to 117.7 K (+11.88 %)

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