| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | DIKER MANAGEMENT, LLC | 1,519,860 | 7.36 | $11,581,333 | 30-Sep-09 | | RGM Capital, LLC | 685,862 | 3.32 | $5,226,268 | 30-Sep-09 | | STALEY CAPITAL ADVISERS, INC. | 575,000 | 2.78 | $4,381,500 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 444,800 | 2.15 | $3,389,376 | 30-Sep-09 | | PALO ALTO INVESTORS, LLC | 2,315,864 | 11.21 | $17,646,883 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 407,308 | 1.97 | $3,103,686 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 324,073 | 1.57 | $2,469,436 | 30-Sep-09 | | WILLIAMS, JONES & ASSOCIATES, INC. | 252,000 | 1.22 | $1,920,240 | 30-Sep-09 | | STATE STREET CORPORATION | 208,548 | 1.01 | $1,589,135 | 30-Sep-09 | | GOLDMAN SACHS GROUP INC | 132,016 | .64 | $1,005,961 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ISHARES RUSSELL 2000 INDEX FD | 208,112 | 1.01 | $1,585,813 | 30-Sep-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 109,763 | .53 | $836,394 | 30-Sep-09 | | DFA U.S. MICRO CAP SERIES | 98,069 | .47 | $469,750 | 30-Apr-09 | | Goldman Sachs Structured Small Cap Equity Fund | 77,154 | .37 | $482,984 | 31-Jul-09 | | COLLEGE RETIREMENT EQUITIES FUND-STOCK ACCOUNT | 63,202 | .31 | $346,346 | 30-Jun-09 | | DFA TAX-MANAGED U.S. SMALL CAP PORTFOLIO | 49,640 | .24 | $310,746 | 31-Jul-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 48,871 | .24 | $267,813 | 30-Jun-09 | | DFA U.S. SMALL CAP SERIES | 42,893 | .21 | $205,457 | 30-Apr-09 | | ISHARES Russell Micro Cap (TM) Index Fund | 25,247 | .12 | $192,382 | 30-Sep-09 | | DFA U.S. Vector Equity Portfolio | 18,792 | .09 | $90,013 | 30-Apr-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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