Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
BOLT WILLIAM J
   2. Issuer Name and Ticker or Trading Symbol
ABIOMED INC [ABMD] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
SVP, QA and Regulatory Affairs
(Last)
(First)
(Middle)
C/O ABIOMED, INC., 22 CHERRY HILL DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
07/29/2008
(Street)

DANVERS, MA 01923		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock, $.01 par value 07/28/2008   M   20,000 (1) A $ 6.688 56,812 D  
Common Stock, $.01 par value 07/28/2008   S   20,000 (1) D $ 19.58 (7) 36,812 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (right to buy) (3) $ 6.688 07/28/2008   M     20,000 (1) 07/01/2003(2) 07/01/2009 Common Stock 20,000 $ 0 0 D  
Stock Option (right to buy) (4) $ 15.563             06/28/2004(2) 06/28/2010 Common Stock 40,000   40,000 D  
Stock Option (right to buy) (5) $ 24.12             06/22/2005(2) 06/22/2011 Common Stock 25,000   25,000 D  
Stock Option (right to buy) (5) $ 6.75             06/25/2004(2) 06/25/2012 Common Stock 50,000   50,000 D  
Stock Option (right to buy) (4) $ 5.11             06/25/2005(2) 06/25/2013 Common Stock 16,000   16,000 D  
Stock Option (right to buy) (5) $ 12.3             07/01/2005(6) 07/01/2014 Common Stock 18,000   18,000 D  
Stock Option (right to buy) (5) $ 9.36             06/08/2006(6) 06/08/2015 Common Stock 30,000   30,000 D  
Stock Option (right to buy) (5) $ 13.57             06/01/2007(6) 06/01/2016 Common Stock 20,000   20,000 D  
Stock Option (right to buy) (5) $ 11.27             05/30/2008(6) 05/30/2017 Common Stock 8,000   8,000 D  
Stock option (right to buy) (5) $ 13.8             05/23/2009(6) 05/23/2018 Common Stock 9,666   9,666 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BOLT WILLIAM J
C/O ABIOMED, INC.
22 CHERRY HILL DRIVE
DANVERS, MA 01923		       SVP, QA and Regulatory Affairs  

Signatures

 /s/ Daniel J. Sutherby (by power of attorney)   07/29/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Stock option was exercised and the underlying shares sold pursuant to a Sales Plan compliant with the requirements of SEC Rule 10B5-1.
(2) Options were fully exercisable on the date shown.
(3) 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. 1992 Combination Stock Option Plan.
(4) 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. 1998 Equity Incentive Plan.
(5) 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. 2000 Stock Incentive Plan.
(6) These options become exercisable in annual 25% increments, commencing on the date shown in Table II, Column 6.
(7) The weighted average price of 19.58 is a result of the following sales of shares: 100 at 19.74, 200 at 19.645, 100 at 19.64, 100 at 19.72, 300 at 19.71, 100 at 19.66, 1100 at 19.70, 3000 at 19.69, 100 at 19.63, 400 at 19.62, 6800 at 19.695, 100 at 19.68, 600 at 19.67, 2602 at 19.60, 500 at 19.40, 200 at 19.42, 100 at 19.41, 100 at 19.23, 200 at 19.33, 100 at 19.25, 100 at 19.35, 200 at 19.28, 100 at 19.29, 200 at 19.24, 100 at 19.15, 100 at 19.20, 100 at 19.18, 1000 at 19.19, 100 at 19.17, 298 at 19.16, 200 at 19.22, 12 at 19.27, 688 at 19.30.

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