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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
874663	Alkermes Inc	ALKS	Pharmaceutical Preparations (2834)	232472830

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1376548	Elliot Ehrich	852 Winter St. Waltham MA 02451	Svp, R&D & Chief Medical Ofcr	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2011-05-26	2,125	$0.00	23,704	No	4	M	Direct
Common Stock	Disposition	2011-05-26	675	$17.98	23,029	No	4	F	Direct
Common Stock	Disposition	2011-05-27	1,450	$18.02	21,579	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Award	Disposition	2011-05-26	2,125	$0.00	2,125	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
4,250	2010-05-26		No	4	M	Direct

Footnotes

This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
The range of sale prices was $18.00 to $18.06. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.
Restricted stock unit award granted under the Alkermes, Inc. 2008 Stock Option and Incentive Plan. Shares subject to the award vest in equal installments over a four year period, commencing on the one year anniversary of the date of grant and annually thereafter.