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    bluebird bio, Inc. (BLUE)

    -NasdaqGS
    137.47 Up 4.11(3.08%) Aug 28, 3:59PM EDT
    |After Hours : 137.00 Down 0.47 (0.34%) Aug 28, 6:31PM EDT
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    Major HoldersGet Major Holders for:
    Breakdown
    % of Shares Held by All Insider and 5% Owners:20%
    % of Shares Held by Institutional & Mutual Fund Owners:66%
    % of Float Held by Institutional & Mutual Fund Owners:83%
    Number of Institutions Holding Shares:100

    Major Direct Holders (Forms 3 & 4)
    HolderSharesReported
    TEPPER ROBERT I26,538Sep 12, 2014
    THIRD ROCK VENTURES LP1,215,054Sep 12, 2014
    GILLIS STEVEN13,507Jun 25, 2015
    LESCHLY NICK245,653Feb 3, 2015
    GREGORY PHILIP D25,000Jun 15, 2015


    Top Institutional Holders
    HolderShares% OutValue*Reported
    Vanguard Group, Inc. (The)2,075,3655.72349,429,194Jun 30, 2015
    Price (T.Rowe) Associates Inc1,791,2414.94301,591,238Jun 30, 2015
    Capital World Investors1,358,0003.74228,646,453Jun 30, 2015
    Orbimed Advisors LLC.958,3002.64161,348,966Jun 30, 2015
    BlackRock Institutional Trust Company, N.A.745,0612.05125,445,916Jun 30, 2015
    FMR, LLC5,365,59214.80903,404,698Jun 30, 2015
    Capital Research Global Investors4,381,90012.08737,780,481Jun 30, 2015
    Baillie Gifford and Company3,697,41210.20622,533,239Jun 30, 2015
    Franklin Resources, Inc702,0011.94118,195,904Jun 30, 2015
    Oppenheimer Funds, Inc.688,3501.90115,897,486Jun 30, 2015

    Top Mutual Fund Holders
    HolderShares% OutValue*Reported
    Fidelity Growth Company Fund2,318,2206.39390,318,689Jun 30, 2015
    Smallcap World Fund1,755,5654.84295,584,470Jun 30, 2015
    American Funds Insurance Ser-Global Small Capitalization Fun913,6592.52153,832,761Jun 30, 2015
    New Economy Fund (The)852,3822.35143,515,553Jun 30, 2015
    Price (T.Rowe) Health Sciences Fund765,7002.11128,920,905Jun 30, 2015
    Fidelity Series Growth Company Fund587,8811.6298,981,521Jun 30, 2015
    Fidelity Contrafund Inc516,1801.4286,909,224Jun 30, 2015
    Vanguard Total Stock Market Index Fund489,0041.3559,057,011Mar 31, 2015
    American Funds Insurance Ser-Growth Fund428,0001.1872,062,357Jun 30, 2015
    iShares NASDAQ Biotechnology ETF420,2531.1670,757,995Jun 30, 2015

    View Transactions for Insiders & Institutional Holders

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

    Currency in USD.