| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 910,976 | 8.21 | $26,372,755 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 847,938 | 7.64 | $24,547,805 | 30-Sep-09 | | RCG Starboard Advisors, LLC | 619,679 | 5.59 | $12,027,969 | 31-Dec-08 | | VANGUARD GROUP, INC. (THE) | 591,315 | 5.33 | $17,118,569 | 30-Sep-09 | | VOYAGEUR ASSET MANAGEMENT INC | 491,692 | 4.43 | $14,234,483 | 30-Sep-09 | | Bank of New York Mellon Corporation | 470,659 | 4.24 | $13,625,578 | 30-Sep-09 | | CENTURY CAPITAL MANAGEMENT, INC. | 369,644 | 3.33 | $10,701,193 | 30-Sep-09 | | Lee Munder Capital Group, LLC | 354,788 | 3.20 | $10,271,112 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 342,800 | 3.09 | $9,924,060 | 30-Sep-09 | | BROWN CAPITAL MANAGEMENT, INC. | 1,454,586 | 13.11 | $42,110,264 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | BROWN CAPITAL MANAGEMENT SMALL COMPANY FUND | 507,552 | 4.58 | $13,302,937 | 30-Jun-09 | | BLAIR (WILLIAM) MUTUAL FUNDS, INC.-SMALL CAP GROWTH FUND | 386,840 | 3.49 | $11,199,018 | 30-Sep-09 | | CENTURY SMALL CAP SELECT FUND | 218,092 | 1.97 | $6,313,763 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 147,832 | 1.33 | $3,534,663 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 126,438 | 1.14 | $3,313,939 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 120,885 | 1.09 | $3,499,620 | 30-Sep-09 | | DFA U.S. MICRO CAP SERIES | 117,601 | 1.06 | $2,462,564 | 30-Apr-09 | | VANGUARD STRATEGIC EQUITY FUND | 112,575 | 1.01 | $2,950,590 | 30-Jun-09 | | PIONEER SMALL CAP VALUE FUND | 105,900 | .95 | $2,651,736 | 31-May-09 | | TAMARACK ENTERPRISE FD | 104,800 | .94 | $2,746,808 | 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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