| % of Shares Held by All Insider and 5% Owners: | 12% | | % of Shares Held by Institutional & Mutual Fund Owners: | 22% | | % of Float Held by Institutional & Mutual Fund Owners: | 25% | | Number of Institutions Holding Shares: | 19 |
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| Major Direct Holders (Forms 3 & 4) |
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| Top Institutional Holders |
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| Holder | Shares | % Out | Value* | Reported |
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| Marathon Capital Management | 1,543,750 | 3.83 | 2,655,250 | Mar 31, 2013 | | Diker Management, LLC | 1,480,831 | 3.68 | 2,547,029 | Mar 31, 2013 | | Renaissance Technologies, LLC | 1,340,300 | 3.33 | 2,305,316 | Mar 31, 2013 | | Bridgeway Capital Management, Inc. | 284,600 | 0.71 | 409,824 | Dec 31, 2012 | | Spark Investment Management LLC | 193,800 | 0.48 | 333,336 | Mar 31, 2013 | | BlackRock Institutional Trust Company, N.A. | 162,060 | 0.40 | 278,743 | Mar 31, 2013 | | Driehaus Capital Management, Inc. | 147,453 | 0.37 | 212,332 | Dec 31, 2012 | | JBF Capital, Inc. | 112,955 | 0.28 | 194,282 | Mar 31, 2013 | | Jane Street Holding, LLC | 82,456 | 0.20 | 118,736 | Dec 31, 2012 | | Morgan Stanley | 51,122 | 0.13 | 87,929 | Mar 31, 2013 |
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| Holder | Shares | % Out | Value* | Reported |
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| Bridgeway Funds Inc-Ultra Small Company Market Fund | 150,000 | 0.37 | 216,000 | Dec 31, 2012 | | Bridgeway Fds Inc-Omni Small Cap Value Fund | 76,800 | 0.19 | 110,592 | Dec 31, 2012 | | Bridgeway Fds Inc.-Omni Tax Managed Small Cap Value Fund | 57,800 | 0.14 | 83,232 | Dec 31, 2012 | | TFS Capital Investment Tr-Tfs Market Neutral Fund | 220 | 0.00 | 459 | Jan 31, 2013 |
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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. |
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