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    Patterson-UTI Energy Inc. (PTEN)

    -NasdaqGS
    12.67 Down 0.13(0.98%) 2:21PM EST - 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
    Vanguard Group, Inc. (The)10,383,8317.06156,588,171Dec 31, 2015
    Dimensional Fund Advisors LP8,379,1925.69110,102,582Sep 30, 2015
    Jennison Associates LLC5,851,1233.9876,883,756Sep 30, 2015
    BlackRock Fund Advisors5,280,1513.5969,381,184Sep 30, 2015
    Kiltearn Partners LLP5,077,5003.4576,568,700Dec 31, 2015
    RidgeWorth Capital Management, LLC4,739,8993.2271,477,676Dec 31, 2015
    Citadel Advisors LLC4,446,8103.0258,431,083Sep 30, 2015
    BlackRock Institutional Trust Company, N.A.4,145,0272.8254,465,654Sep 30, 2015
    Prudential PLC4,098,9002.7853,859,546Sep 30, 2015
    Wellington Management Company, LLP14,771,85810.04194,102,214Sep 30, 2015

    Top Mutual Fund Holders
    HolderShares% OutValue*Reported
    Vanguard Specialized-Energy Fund5,999,8634.0889,337,960Oct 31, 2015
    RidgeWorth Mid Cap Value Equity Fd5,585,0003.7973,386,900Sep 30, 2015
    Vanguard Small-Cap Index Fund2,708,2481.8435,586,378Sep 30, 2015
    iShares Core S&P Midcap ETF2,568,0051.7441,653,038Nov 30, 2015
    Vanguard Total Stock Market Index Fund2,466,4911.6832,409,691Sep 30, 2015
    JP Morgan Small Cap Equity Fund2,456,8901.6739,850,753Nov 30, 2015
    DFA U.S. Small Cap Value Series2,234,7921.5236,851,720Jul 31, 2015
    Wells Fargo Special Mid Cap Value Fd2,195,5001.4935,611,007Nov 30, 2015
    Vanguard Explorer Fund, Inc.2,124,5501.4431,634,549Oct 31, 2015
    Prudential Jennison Natural Resources Fd2,089,5161.4233,891,947Nov 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.