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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
1199632	J William Bolt	C/O Abiomed, Inc. 22 Cherry Hill Drive Danvers MA 01923	Svp, Qa And Regulatory Affairs	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, $.01 Par	Acquisiton	2016-03-07	7,987	$22.44	98,392	No	4	M	Direct
Common Stock, $.01 Par	Disposition	2016-03-07	7,987	$85.20	90,405	No	4	S	Direct
Common Stock, $.01 Par	Acquisiton	2016-03-08	7,013	$22.44	97,418	No	4	M	Direct
Common Stock, $.01 Par	Acquisiton	2016-03-08	2,510	$13.80	99,928	No	4	M	Direct
Common Stock, $.01 Par	Disposition	2016-03-08	9,523	$85.19	90,405	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
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)	Disposition	2016-03-08	2,510	$0.00	2,510	$13.80
Common Stock	Stock Option (right to buy)	Disposition	2016-03-07	15,000	$0.00	15,000	$22.44

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
7,156	2009-05-23	2018-05-23	No	4	M	Direct
5,000	2013-05-22	2022-05-22	No	4	M	Direct

Reported Derivative Holdings

Sec. Name	Sec. Type	Price	Date	Expiration Date	Remaning Holdings	Nature of Ownership
Common Stock	Stock Option (Right to Buy)	$23.15	2014-05-14	2023-05-14	20,000	Direct
Common Stock	Stock Option (Right to Buy)	$21.55	2015-05-14	2024-05-14	15,000	Direct
Common Stock	Stock Option (Right to Buy)	$66.25	2016-05-13	2025-05-13	6,000	Direct

Expiration Date	Remaning Holdings	Nature of Ownership
2023-05-14	20,000	Direct
2024-05-14	15,000	Direct
2025-05-13	6,000	Direct

Footnotes

These options become exercisable in annual 25% increments, commencing on the date shown in Table II, Column 6.
Grant to reporting person of this option to buy the number of Common Stock set forth in Table II, Column 7, under the ABIOMED, Inc. 2008 Stock Incentive Plan.
These options become exercisable in annual 33-1/3% increments, commencing on the date shown in Table II, Column 6.
Sale of common stock pursuant to reporting owner's 10b5-1 plan.
This price represents the weighted average sale price of multiple transactions on the reported date at prices that ranged between $85.0000 and $85.6500. 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.
This price represents the weighted average sale price of multiple transactions on the reported date at prices that ranged between $85.0000 and $86.0200. 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.