| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | BROOKSIDE CAPITAL MANAGEMENT, LLC | 2,777,595 | 4.56 | $31,220,167 | 30-Sep-09 | | TIMES SQUARE CAPITAL MANAGEMENT | 2,650,200 | 4.36 | $29,788,248 | 30-Sep-09 | | GRANAHAN INVESTMENT MANAGEMENT INC. | 2,455,210 | 4.04 | $27,596,560 | 30-Sep-09 | | EAGLE ASSET MANAGEMENT, INC. | 2,377,290 | 3.91 | $26,720,739 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,735,076 | 2.85 | $19,502,254 | 30-Sep-09 | | LUTHER KING CAPITAL MANAGEMENT | 1,578,750 | 2.59 | $17,745,150 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,500,632 | 2.47 | $16,867,103 | 30-Sep-09 | | Ameriprise Financial, Inc. | 1,486,259 | 2.44 | $16,705,551 | 30-Sep-09 | | FMR LLC | 8,255,123 | 13.57 | $92,787,582 | 30-Sep-09 | | Matrix VI Management Co., L.L.C. | 6,185,272 | 10.17 | $69,522,457 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VANGUARD EXPLORER FUND, INC. | 2,329,700 | 3.83 | $21,060,488 | 31-Jul-09 | | VARIABLE INSURANCE PRODUCTS FD-GROWTH PORTFOLIO | 2,059,176 | 3.38 | $19,026,786 | 31-Oct-09 | | FIDELITY ADVISOR EQUITY GROWTH FUND | 1,794,222 | 2.95 | $16,578,611 | 31-Oct-09 | | FIDELITY DIVIDEND GROWTH FUND | 706,688 | 1.16 | $6,529,797 | 31-Oct-09 | | ISHARES RUSSELL 2000 INDEX FD | 629,814 | 1.04 | $5,819,481 | 31-Oct-09 | | LKCM FUND-LKCM SMALL CAP EQUITY PORTFOLIO | 624,250 | 1.03 | $7,016,570 | 30-Sep-09 | | OPPENHEIMER DISCOVERY FUND | 621,300 | 1.02 | $6,983,412 | 30-Sep-09 | | LORD ABBETT DEVELOPING GROWTH FUND | 571,598 | .94 | $5,167,245 | 31-Jul-09 | | FEDERATED KAUFMANN SMALL CAP FUND | 500,004 | .82 | $4,520,036 | 31-Jul-09 | | Managers AMG Funds-Timessquare Small Cap Growth Fund | 500,000 | .82 | $5,620,000 | 30-Sep-09 |
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Value shown is computed using the security's price on the report date given.
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