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    ABIOMED, Inc. (ABMD)

    -NasdaqGS
    99.74 Up 0.94(0.95%) May 27, 4:00PM EDT
    |After Hours : 99.74 0.00 (0.00%) May 27, 4:25PM EDT
    Major HoldersGet Major Holders for:
    Breakdown
    % of Shares Held by All Insider and 5% Owners:2%
    % of Shares Held by Institutional & Mutual Fund Owners:99%
    % of Float Held by Institutional & Mutual Fund Owners:101%
    Number of Institutions Holding Shares:254

    Major Direct Holders (Forms 3 & 4)
    HolderSharesReported
    TERMEER HENRI A317,778Aug 12, 2015
    MINOGUE MICHAEL R221,048Mar 31, 2016
    SUTTER MARTIN P162,543Mar 31, 2016
    LATAIF LOUIS E111,175Apr 29, 2015
    WEBER DAVID M108,176Mar 24, 2016


    Top Institutional Holders
    HolderShares% OutValue*Reported
    Vanguard Group, Inc. (The)2,808,4306.62266,267,242Mar 31, 2016
    Palo Alto Investors, LLC2,325,9595.48220,524,168Mar 31, 2016
    BlackRock Fund Advisors2,104,3574.96199,514,082Mar 31, 2016
    Jackson Square Partners, LLC1,720,4804.05163,118,705Mar 31, 2016
    Essex Woodlands Health Ventures1,450,0003.42137,474,497Mar 31, 2016
    State Street Corporation1,316,1683.10124,785,885Mar 31, 2016
    Macquarie Group Limited1,185,1862.79112,367,482Mar 31, 2016
    BlackRock Institutional Trust Company, N.A.1,137,7382.68107,868,937Mar 31, 2016
    Primecap Management Company5,535,29013.04524,800,833Mar 31, 2016
    Eagle Asset Management Inc828,5231.9578,552,263Mar 31, 2016

    Top Mutual Fund Holders
    HolderShares% OutValue*Reported
    Primecap Odyssey Aggressive Growth Fund2,542,1735.99241,023,417Mar 31, 2016
    Primecap Odyssey Growth Fund1,934,8004.56183,438,384Mar 31, 2016
    iShares Core S&P Smallcap ETF1,069,2882.5285,553,735Feb 29, 2016
    Vanguard Small-Cap Index Fund764,2751.8068,998,746Dec 31, 2015
    Vanguard Total Stock Market Index Fund706,3571.6663,769,909Dec 31, 2015
    Delaware Group Equity Funds IV-Delaware SMID Cap Growth Fund617,6781.4655,763,969Dec 31, 2015
    iShares Russell 2000 ETF621,2991.4649,710,134Feb 29, 2016
    Vanguard Explorer Fund, Inc.505,5831.1943,141,398Jan 31, 2016
    Investment Managers Ser Tr-Oak Ridge Small Cap Growth Fd500,0001.1840,005,001Feb 29, 2016
    Eagle Series Tr-Eagle Small Cap Growth Fund476,0041.1245,129,938Mar 31, 2016

    View Transactions for Insiders & Institutional Holders

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

    Currency in USD.