| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Bares Capital Management Inc | 931,393 | 6.06 | 19,903,868 | 2013-03-31 | | BlackRock Institutional Trust Company, N.A. | 698,269 | 4.55 | 14,922,008 | 2013-03-31 | | Vanguard Group, Inc. (The) | 427,025 | 2.78 | 9,125,524 | 2013-03-31 | | Susquehanna International Group, LLP | 245,378 | 1.60 | 5,243,727 | 2013-03-31 | | BlackRock Fund Advisors | 169,461 | 1.10 | 3,621,381 | 2013-03-31 | | Renaissance Technologies, LLC | 153,500 | 1.00 | 3,280,295 | 2013-03-31 | | Northern Trust Corporation | 125,487 | 0.82 | 2,681,657 | 2013-03-31 | | Morgan Stanley | 115,162 | 0.75 | 2,461,011 | 2013-03-31 | | State Street Corporation | 111,823 | 0.73 | 2,389,657 | 2013-03-31 | | Citadel Advisors LLC | 111,624 | 0.73 | 2,385,404 | 2013-03-31 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Vanguard Small-Cap Index Fund | 131,751 | 0.86 | 2,501,951 | 2012-12-31 | | iShares Russell 2000 Index Fund | 113,055 | 0.74 | 2,415,985 | 2013-03-31 | | Vanguard Total Stock Market Index Fund | 100,479 | 0.65 | 1,908,096 | 2012-12-31 | | Vanguard Small-Cap Growth Index Fund | 92,902 | 0.60 | 1,764,208 | 2012-12-31 | | Vanguard Extended Market Index Fund | 74,379 | 0.48 | 1,412,457 | 2012-12-31 | | iShares Russell 2000 Growth Index Fund | 53,514 | 0.35 | 1,143,594 | 2013-03-31 | | Absolute Strategies Fund | 53,600 | 0.35 | 1,017,864 | 2012-12-31 | | College Retirement Equities Fund-Stock Account | 48,426 | 0.32 | 919,609 | 2012-12-31 | | Robeco Inv Fds-Robeco Boston Partners Long/Short Research Fd | 34,890 | 0.23 | 735,132 | 2013-02-28 | | DFA U.S. Micro Cap Series | 32,556 | 0.21 | 713,627 | 2013-01-31 |
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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. |