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    Patterson-UTI Energy Inc. (PTEN)

    -NasdaqGS
    18.72 Up 0.12(0.65%) 10:09AM EDT - Nasdaq Real Time Price
    Major HoldersGet Major Holders for:
    Breakdown
    % of Shares Held by All Insider and 5% Owners:3%
    % of Shares Held by Institutional & Mutual Fund Owners:103%
    % of Float Held by Institutional & Mutual Fund Owners:106%
    Number of Institutions Holding Shares:309

    Major Direct Holders (Forms 3 & 4)
    HolderSharesReported
    SIEGEL MARK S908,546Apr 22, 2015
    VOLLMER JOHN E III630,000Apr 21, 2015
    BERNS KENNETH N349,422Apr 22, 2015
    TALBOTT CLOYCE A293,476Jan 1, 2015
    HENDRICKS WILLIAM ANDREW JR261,490Apr 24, 2015


    Top Institutional Holders
    HolderShares% OutValue*Reported
    Dimensional Fund Advisors LP11,789,9058.00207,738,137Mar 31, 2016
    Vanguard Group, Inc. (The)10,828,5057.35190,798,268Mar 31, 2016
    Jennison Associates LLC6,030,2224.09106,252,517Mar 31, 2016
    BlackRock Fund Advisors5,374,3563.6594,696,158Mar 31, 2016
    Kiltearn Partners LLP5,064,0463.4489,228,495Mar 31, 2016
    JP Morgan Chase & Company4,626,9583.1481,527,004Mar 31, 2016
    BlackRock Institutional Trust Company, N.A.4,246,5732.8874,824,620Mar 31, 2016
    First Pacific Advisors, Inc4,230,8702.8774,547,933Mar 31, 2016
    State Street Corporation4,101,0002.7872,259,624Mar 31, 2016
    Wellington Management Company, LLP17,460,52911.85307,654,538Mar 31, 2016

    Top Mutual Fund Holders
    HolderShares% OutValue*Reported
    Vanguard Specialized-Energy Fund5,999,8634.0786,278,029Jan 31, 2016
    RidgeWorth Mid Cap Value Equity Fd4,000,0002.7160,320,000Dec 31, 2015
    DFA U.S. Small Cap Value Series3,590,9232.4451,637,472Jan 31, 2016
    Wells Fargo Special Mid Cap Value Fd3,015,4002.0546,859,316Feb 29, 2016
    JP Morgan Small Cap Equity Fund2,993,3932.0346,517,327Feb 29, 2016
    Vanguard Small-Cap Index Fund2,783,0491.8941,968,378Dec 31, 2015
    iShares Core S&P Midcap ETF2,566,3121.7439,880,488Feb 29, 2016
    Vanguard Total Stock Market Index Fund2,533,8881.7238,211,031Dec 31, 2015
    Vanguard Explorer Fund, Inc.2,124,5501.4430,551,029Jan 31, 2016
    Undiscovered Managers Behavioral Value Fund2,041,1001.3931,718,694Feb 29, 2016

    View Transactions for Insiders & Institutional Holders

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

    Currency in USD.