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    ABIOMED, Inc. (ABMD)

    -NasdaqGS
    52.25 Jan 29, 4:00PM EST
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    Major HoldersGet Major Holders for:
    Breakdown
    % of Shares Held by All Insider and 5% Owners:10%
    % of Shares Held by Institutional & Mutual Fund Owners:107%
    % of Float Held by Institutional & Mutual Fund Owners:118%
    Number of Institutions Holding Shares:151

    Major Direct Holders (Forms 3 & 4)
    HolderSharesReported
    TERMEER HENRI A305,878Aug 13, 2014
    MINOGUE MICHAEL R218,803Oct 31, 2014
    AUSTEN W GERALD85,341Aug 13, 2014
    SUTTER MARTIN P124,969Sep 30, 2014
    WEBER DAVID M112,850Oct 30, 2014


    Top Institutional Holders
    HolderShares% OutValue*Reported
    Macquarie Group Limited3,205,3657.8479,589,212Sep 30, 2014
    Essex Woodlands Health Ventures3,150,0007.7078,214,500Sep 30, 2014
    Wellington Management Company, LLP3,008,9197.3674,711,458Sep 30, 2014
    Vanguard Group, Inc. (The)2,461,3896.0261,116,288Sep 30, 2014
    Palo Alto Investors, LLC2,429,5245.9460,325,080Sep 30, 2014
    Blair (William) & Company, L.L.C.2,419,2855.9260,070,846Sep 30, 2014
    BlackRock Fund Advisors1,988,6744.8649,378,775Sep 30, 2014
    Tiger Global Management, LLC1,690,0004.1341,962,700Sep 30, 2014
    Primecap Management Company5,664,99013.85140,661,701Sep 30, 2014
    Jackson Square Partners, LLC4,748,05911.61117,894,304Sep 30, 2014

    Top Mutual Fund Holders
    HolderShares% OutValue*Reported
    Primecap Odyssey Aggressive Growth Fund2,632,1736.4465,356,855Sep 30, 2014
    Primecap Odyssey Growth Fund1,914,8004.6847,544,484Sep 30, 2014
    Delaware Group Equity Funds IV-Delaware SMID Cap Growth Fund1,574,9483.8539,105,958Sep 30, 2014
    Vanguard Explorer Fund, Inc.1,565,0003.8351,316,350Oct 31, 2014
    iShares Core S&P Smallcap ETF761,2131.8627,038,285Nov 30, 2014
    Delaware VIP Smid Cap Growth Series722,5001.7717,939,675Sep 30, 2014
    iShares Russell 2000 ETF641,0311.5722,769,421Nov 30, 2014
    Vanguard Small-Cap Index Fund633,0651.5515,719,003Sep 30, 2014
    Vanguard Total Stock Market Index Fund580,2221.4214,406,912Sep 30, 2014
    Voyageur Mutual Funds III-Delaware Select Growth Fund531,7291.3017,435,393Oct 31, 2014

    View Transactions for Insiders & Institutional Holders

    Value shown is computed using the security's price on the report date given.

    Currency in USD.