| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Invesco Ltd. | 1,792,446 | 4.88 | $21,401,805 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,545,423 | 4.20 | $18,452,350 | 30-Sep-09 | | WELLS FARGO & COMPANY | 1,341,206 | 3.65 | $16,013,999 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,185,159 | 3.22 | $14,150,798 | 30-Sep-09 | | AVENIR CORPORATION/DC | 986,467 | 2.68 | $11,778,415 | 30-Sep-09 | | MAZAMA CAPITAL MANAGEMENT, INC | 739,450 | 2.01 | $8,829,033 | 30-Sep-09 | | FMR LLC | 4,035,782 | 10.98 | $48,187,237 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 718,727 | 1.96 | $8,581,600 | 30-Sep-09 | | EMERALD ADVISERS | 559,615 | 1.52 | $6,681,803 | 30-Sep-09 | | STATE STREET CORPORATION | 549,974 | 1.50 | $6,566,689 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | FIDELITY GROWTH COMPANY FUND | 3,595,445 | 9.78 | $42,929,613 | 30-Sep-09 | | Powershares Exhg Traded Fd Tr-POWERSHARES WILDERHILL CLEAN E | 1,840,851 | 5.01 | $22,366,339 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 429,578 | 1.17 | $5,129,161 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 396,181 | 1.08 | $3,874,650 | 30-Jun-09 | | Wells Fargo Advantage Small Cap Growth Fd | 356,229 | .97 | $4,253,374 | 30-Sep-09 | | DFA U.S. MICRO CAP SERIES | 307,402 | .84 | $3,470,568 | 30-Apr-09 | | FIDELITY NEW MILLENNIUM FUND | 280,700 | .76 | $3,351,558 | 30-Sep-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 250,604 | .68 | $2,450,907 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 238,990 | .65 | $2,337,322 | 30-Jun-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 224,837 | .61 | $2,684,553 | 30-Sep-09 |
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*
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Value shown is computed using the security's price on the report date given.
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