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Filing Details

Accession Number:: 0000899866-13-000144
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2013-08-01 17:04:46
Reporting Period:: 2013-07-30

Filing Date:: 2013-08-01
Accepted Time:: 2013-08-01 17:04:46
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
899866	Alexion Pharmaceuticals Inc	ALXN	Pharmaceutical Preparations (2834)	133648318

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1231949	Leonard Bell	C/O Alexion Pharmaceuticals Inc 352 Knotter Drive Cheshire CT 06410	Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	37,103	$109.56	1,355,222	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	50,967	$110.53	1,304,255	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	6,125	$111.04	1,298,130	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	4,200	$112.56	1,293,930	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	200	$113.12	1,293,730	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	100	$114.85	1,293,630	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	27,900	$116.11	1,265,730	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	10,817	$117.24	1,254,913	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	17,376	$118.27	1,237,537	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	10,001	$119.74	1,227,536	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	39,099	$120.09	1,188,437	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	6,112	$121.01	1,182,325	No	4	S	Direct
Common Stock, Par Value $.0001 Per Share	Disposition	2013-07-30	2,737	$110.86	1,179,588	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Footnotes

The transaction reported by this Form 4 is made pursuant to the terms of a sales plan designed to meet the requirements of Rule 10b5-1(c)(1) of the Securities Exchange Act.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $108.97 - $109.97. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $109.97 - $110.97. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $110.97 - $111.97. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $111.98 - $112.98. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $115.88 - $116.88. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $116.91 - $117.91. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $117.92 - $118.92. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $118.96 - $119.96. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $119.98 - $120.98. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This transaction was executed in multiple trades through a broker-dealer at prices ranging from $121.00 - $122.00. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of shares sold at each price.
This sale was made to cover withholding taxes immediately following the vesting of previously granted Restricted Stock Units.