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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
1286370	R Michael Minogue	C/O Abiomed, Inc., 22 Cherry Hill Drive Danvers MA 01923	President, Ceo, Chairman	Yes	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	Explanation
Common Stock, $.01 Par Value	Disposition	2011-03-25	9,517	$14.51	229,591	No	4	S	Direct
Common Stock, $.01 Par Value	Disposition	2011-03-28	5,500	$14.50	224,091	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct
No	4	S	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)	$9.05	2005-04-05	2014-04-05	100,000	100,000	Direct
Common Stock	Stock Option (right to buy)	$9.05	2005-04-05	2014-04-05	192,200	186,383	Direct
Common Stock	Stock Option (right to buy)	$9.05	2005-04-05	2014-04-05	100,000	100,000	Direct
Common Stock	Stock Option (right to buy)	$9.36	2006-06-08	2015-06-08	100,000	100,000	Direct
Common Stock	Stock Option (right to buy)	$13.57	2007-06-01	2016-06-01	260,000	260,000	Direct
Common Stock	Stock Option (right to buy)	$11.27	2008-05-30	2017-05-30	85,000	85,000	Direct
Common Stock	Stock Option (right to buy)	$13.80	2009-05-23	2018-05-23	43,333	43,333	Direct
Common Stock	Stock Option (right to buy)	$18.63	2009-06-15	2018-08-13	93,750	93,750	Direct
Common Stock	Stock Option (right to buy)	$5.86	2010-05-28	2019-05-28	148,000	148,000	Direct
Common Stock	Stock Option (right to buy)	$5.86	2010-03-31	2019-05-28	130,500	130,500	Direct
Common Stock	Stock Option (right to buy)	$10.03	2011-06-03	2020-06-03	105,000	105,000	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
2014-04-05	100,000	100,000	Direct
2014-04-05	192,200	186,383	Direct
2014-04-05	100,000	100,000	Direct
2015-06-08	100,000	100,000	Direct
2016-06-01	260,000	260,000	Direct
2017-05-30	85,000	85,000	Direct
2018-05-23	43,333	43,333	Direct
2018-08-13	93,750	93,750	Direct
2019-05-28	148,000	148,000	Direct
2019-05-28	130,500	130,500	Direct
2020-06-03	105,000	105,000	Direct

Footnotes

Grant to reporting person of option to buy shares of Common Stock under the ABIOMED, Inc. 1998 Equity Incentive Plan.
Grant to reporting person of option to buy shares of Common Stock under the ABIOMED, Inc. 2000 Stock Incentive Plan.
Grant to reporting person of inducement option to buy shares of Common Stock under NASDAQ Marketplace Rule 4350. These options were granted outside of the Company's established stock option plans.
These options become exercisable in annual 25% increments, commencing on the date shown 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. 2008 Stock Incentive Plan.
These options become exercisable based on the achievement of certain performance milestones.
These options become exerciseable upon the achievement of a certain performance milestone, based on the results of Abiomed's fiscal year ended March 31, 2010.
The sale of common stock granted more than 5 years old reported in this Form 4 was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on 11/25/2009.
This price represents the weighted average sale price of multiple transactions on the reported date at prices that ranged between $14.50 and $14.58. 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.