Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. § 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of ABIOMED, Inc., (the “Company”) for the quarter ended September 30, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned President and Chief Executive Officer, and Vice President and Corporate Controller, of the Company, certifies, to the best knowledge and belief of the signatory, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ MICHAEL R. MINOGUE	/s/ IAN W. MCLEOD
Michael R. Minogue Chairman, President and Chief Executive Officer	Ian W. McLeod Vice President and Corporate Controller (Interim Principal Financial and Accounting Officer)
Date: November 2, 2017	Date: November 2, 2017