| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Capital World Investors | 3,272,895 | 7.85 | $26,117,702 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 1,938,928 | 4.65 | $15,472,645 | 30-Sep-09 | | MARXE, AUSTIN W. & GREENHOUSE, DAVID M. | 1,120,278 | 2.69 | $8,939,818 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 943,812 | 2.26 | $7,531,619 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 930,314 | 2.23 | $7,423,905 | 30-Sep-09 | | RS Investment Management Co., LLC | 872,123 | 2.09 | $6,959,541 | 30-Sep-09 | | Shannon River Fund Management Co., LLC | 632,300 | 1.52 | $5,045,754 | 30-Sep-09 | | CROSSLINK CAPITAL. INC. | 578,500 | 1.39 | $4,616,430 | 30-Sep-09 | | STATE STREET CORPORATION | 514,869 | 1.24 | $4,108,654 | 30-Sep-09 | | RCM CAPITAL MANAGEMENT | 454,390 | 1.09 | $3,626,032 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | SMALLCAP WORLD FUND | 3,272,895 | 7.85 | $22,910,265 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 403,793 | .97 | $3,222,268 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 273,441 | .66 | $1,914,087 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 271,690 | .65 | $1,665,459 | 30-Apr-09 | | RS Investment Trust-Technology Fund | 269,594 | .65 | $2,151,360 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 263,765 | .63 | $1,846,355 | 30-Jun-09 | | RS Investment Trust-RS Small Cap Growth Fund | 255,599 | .61 | $2,039,680 | 30-Sep-09 | | SEI INSTITUTIONAL INVESTMENT TR-SMALL/MID CAP EQUITY FUN | 208,360 | .50 | $1,402,262 | 31-May-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 173,941 | .42 | $1,217,587 | 30-Jun-09 | | John Hancock Trust-Emerging Small Company Tr | 149,660 | .36 | $1,047,620 | 30-Jun-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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