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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
1203056	Gerald W Austen	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 $.01 Par Value	Acquisiton	2013-08-05	8,000	$10.06	78,200	No	4	M	Indirect	Footnote
Common Stock, $0.01 Par Value	Disposition	2013-08-05	8,000	$22.85	70,200	No	4	S	Indirect	Footnote

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2013-08-05	8,000	$0.00	8,000	$10.06

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2006-08-09	2015-08-10	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)	$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	12,000	12,000	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
2016-08-09	8,000	8,000	Direct
2017-08-08	8,000	8,000	Direct
2018-08-13	12,000	12,000	Direct

Footnotes

This option becomes exercisable 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.
Represents shares held by the W. Gerald Austen Rev Trust, of which the Reporting Person and his spouse are the Trustees and the Reporting Person's spouse and children are the beneficiaries. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of such shares for purposes of Section 16 or for any other purpose.
This price represents the weighted average sale price of multiple transactions on the reported date at prices that ranged between $22.6000 and $23.0100. 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.