| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | TURNER INVESTMENT PARTNERS, INC. | 1,101,965 | 4.91 | $49,588,425 | 30-Sep-09 | | NEXT CENTURY GROWTH INVESTORS LLC | 1,000,132 | 4.46 | $45,005,940 | 30-Sep-09 | | ALGER (FRED) MANAGEMENT INC | 949,295 | 4.23 | $42,718,275 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 945,122 | 4.21 | $42,530,490 | 30-Sep-09 | | FRANKLIN RESOURCES, INC | 863,070 | 3.85 | $38,838,150 | 30-Sep-09 | | OPPENHEIMER FUNDS, INC. | 805,694 | 3.59 | $36,256,230 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 779,792 | 3.48 | $35,090,640 | 30-Sep-09 | | WELLS FARGO & COMPANY | 730,636 | 3.26 | $32,878,620 | 30-Sep-09 | | GOODMAN & COMPANY INVESTMENT COUNSEL | 661,400 | 2.95 | $29,763,000 | 30-Sep-09 | | COLUMBUS CIRCLE INVESTORS | 640,384 | 2.85 | $28,817,280 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | LORD ABBETT DEVELOPING GROWTH FUND | 331,951 | 1.48 | $13,195,052 | 31-Jul-09 | | VANGUARD EXPLORER FUND, INC. | 327,400 | 1.46 | $13,014,150 | 31-Jul-09 | | BLACKROCK FUNDS-U.S. OPPORTUNITIES PORTFOLIO | 308,300 | 1.37 | $11,240,618 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 265,575 | 1.18 | $11,950,875 | 30-Sep-09 | | FIDELITY BLUE CHIP GROWTH FUND | 257,900 | 1.15 | $11,605,500 | 30-Sep-09 | | ALGER SMALL CAP GROWTH INSTITUTIONAL PORTFOLIO | 253,000 | 1.13 | $10,056,750 | 31-Jul-09 | | VANGUARD SMALL-CAP INDEX FUND | 226,081 | 1.01 | $8,242,913 | 30-Jun-09 | | FRANKLIN STRATEGIC SERIES-FRANKLIN SMALL-MID CAP GROWTH | 213,700 | .95 | $9,616,500 | 30-Sep-09 | | DFA U.S. MICRO CAP SERIES | 199,008 | .89 | $6,485,670 | 30-Apr-09 | | JOHN HANCOCK SMALL CAP EQUITY FUND | 194,562 | .87 | $7,395,301 | 31-Oct-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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