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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
815094	Abiomed Inc	ABMD	Surgical & Medical Instruments & Apparatus (3841)	042743260

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1200493	E Dorothy Puhy	C/O Abiomed, Inc. 22 Cherry Hill Drive Danvers MA 01923		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock, $0.01 Par Value	Acquisiton	2012-02-07	8,000	$5.40	37,987	No	4	M	Direct
Common Stock, $0.01 Par Value	Disposition	2012-02-07	4,000	$23.11	33,987	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Acquisiton	2012-02-07	8,000	$5.40	8,000	$5.40

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
7,000	2004-06-26	2013-06-26	No	4	M	Direct

Reported Derivative Holdings

Sec. Name	Sec. Type	Price	Date	Expiration Date	Amount	Remaning Holdings	Nature of Ownership
Common Stock	Stock Option (right to buy)	$10.41	2005-08-11	2014-08-11	8,000	8,000	Direct
Common Stock	Stock Option (right to buy)	$10.06	2006-08-09	2015-08-10	8,000	8,000	Direct
Common Stock	Stock Option (right to buy)	$13.21	2007-08-08	2016-08-09	8,000	8,000	Direct
Common Stock	Stock option (right to buy)	$12.69	2008-08-13	2017-08-08	8,000	8,000	Direct
Common Stock	Stock Option (right to buy)	$18.63	2009-08-12	2018-08-13	13,500	13,500	Direct
Common Stock	Stock Option (right to buy)	$7.67	2010-08-11	2019-08-12	13,500	13,500	Direct
Common Stock	Stock Option (right to buy)	$9.99	2011-08-10	2020-08-11	13,500	13,500	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
2014-08-11	8,000	8,000	Direct
2015-08-10	8,000	8,000	Direct
2016-08-09	8,000	8,000	Direct
2017-08-08	8,000	8,000	Direct
2018-08-13	13,500	13,500	Direct
2019-08-12	13,500	13,500	Direct
2020-08-11	13,500	13,500	Direct

Footnotes

Grant to reporting person of option to buy the number of shares of Common Stock set forth in Table II, Column 7, under the ABIOMED, Inc. 1989 Non-Qualified Stock Option Plan for Non-Employee Directors.
This option becomes exercisable in annual 20% increments commencing on the date set forth in Table II, Column 6.
This option becomes exerciseable in full on the date set forth in Table II, Column 6.
Grant to reporting person of option to buy the number of shares of Common Stock set forth in Table II, Column 7, under the ABIOMED, Inc. 2000 Stock Incentive Plan.
Grant to reporting person of option to buy shares of Common Stock set forth in Table II, Column 7, under the ABIOMED, Inc. 2008 Stock Incentive Plan.
This price represents the weighted average sale price of multiple transactions on the reported date at prices that ranged between $23.11 and $23.1101. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the issuer, or a security holder of the issuer.