| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| BlackRock Institutional Trust Company, N.A. | 1,236,183 | 5.06 | 1,446,334 | 2013-03-31 | | Vanguard Group, Inc. (The) | 412,703 | 1.69 | 482,862 | 2013-03-31 | | Bridgeway Capital Management, Inc. | 140,500 | 0.58 | 164,385 | 2013-03-31 | | Renaissance Technologies, LLC | 119,031 | 0.49 | 139,266 | 2013-03-31 | | Geode Capital Management, LLC | 81,805 | 0.33 | 95,711 | 2013-03-31 | | UBS AG | 58,678 | 0.24 | 68,653 | 2013-03-31 | | Citadel Advisors LLC | 55,285 | 0.23 | 64,683 | 2013-03-31 | | Dimensional Fund Advisors LP | 51,242 | 0.21 | 59,953 | 2013-03-31 | | Goldman Sachs Group, Inc. | 39,989 | 0.16 | 46,787 | 2013-03-31 | | Northern Trust Corporation | 39,416 | 0.16 | 46,116 | 2013-03-31 |
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| Holder | Shares | % Out | Value* | Reported |
|---|
| Vanguard Total Stock Market Index Fund | 228,098 | 0.93 | 280,560 | 2012-12-31 | | Vanguard Institutional Index-Inst Total Stock Market Ind | 91,691 | 0.38 | 112,779 | 2012-12-31 | | Bridgeway Funds Inc-Ultra Small Company Market Fund | 70,500 | 0.29 | 86,715 | 2012-12-31 | | Spartan Extended Market Index Fund | 58,183 | 0.24 | 68,074 | 2013-03-31 | | DFA U.S. Micro Cap Series | 23,805 | 0.10 | 33,088 | 2013-01-31 | | Spartan Total Market Index Fund | 21,445 | 0.09 | 25,090 | 2013-03-31 | | Claymore ETF Tr-Wilshire Micro Cap ETF | 22,564 | 0.09 | 26,399 | 2013-03-31 | | Vanguard Balanced Index Fund | 14,250 | 0.06 | 17,527 | 2012-12-31 | | DFA U.S. Small Cap Series | 8,051 | 0.03 | 11,190 | 2013-01-31 | | Quantitative Master Series Tr-Extended Market Index Series | 4,395 | 0.02 | 5,405 | 2012-12-31 |
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View Transactions for Insiders & Institutional Holders Value shown is computed using the security's price on the report date given. Currency in USD. |