| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | KOPP INVESTMENT ADVISORS. INC. | 1,321,279 | 5.50 | $3,805,283 | 30-Sep-09 | | Harvey Partners, LLC | 1,010,000 | 4.21 | $2,908,800 | 30-Sep-09 | | BRIGHTFIELD CAPITAL MANAGEMENT, LLC | 941,116 | 3.92 | $2,710,414 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 749,780 | 3.12 | $2,159,366 | 30-Sep-09 | | BURNHAM ASSET MANAGEMENT CORPORATION | 594,582 | 2.48 | $1,712,396 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 552,186 | 2.30 | $1,590,295 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 510,592 | 2.13 | $1,470,504 | 30-Sep-09 | | TRELLUS MANAGEMENT COMPANY, LLC | 491,206 | 2.05 | $1,414,673 | 30-Sep-09 | | FEDERATED INVESTORS, INC. | 2,602,500 | 10.84 | $7,495,200 | 30-Sep-09 | | POLAR SECURITIES INC | 2,492,601 | 10.38 | $7,178,690 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 304,327 | 1.27 | $657,346 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 270,551 | 1.13 | $573,568 | 30-Apr-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 171,865 | .72 | $371,228 | 30-Jun-09 | | Fidelity Select Portfolios-Select Communications Equipment | 99,926 | .42 | $287,786 | 30-Sep-09 | | FIDELITY SELECT PORTFOLIOS - NETWORKING & INFRASTRUCTURE | 99,926 | .42 | $181,865 | 31-May-09 | | HIRTLE CALLAGHAN TRUST-SMALL CAPITALIZATION EQUITY PORTF | 38,111 | .16 | $82,319 | 30-Jun-09 | | ISHARES Russell Micro Cap (TM) Index Fund | 34,906 | .15 | $100,529 | 30-Sep-09 | | Hirtle Callaghan Trust-Institutional Small Capitalization Eq | 18,769 | .08 | $40,541 | 30-Jun-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 17,464 | .07 | $50,296 | 30-Sep-09 | | VANGUARD BALANCED INDEX FUND | 13,249 | .06 | $28,617 | 30-Jun-09 |
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Value shown is computed using the security's price on the report date given.
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