| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | WADDELL & REED FINANCIAL INC. | 4,185,575 | 8.24 | $100,579,367 | 30-Sep-09 | | RS Investment Management Co., LLC | 2,773,508 | 5.46 | $66,647,397 | 30-Sep-09 | | FMR LLC | 2,624,100 | 5.17 | $63,057,123 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,514,102 | 4.95 | $60,413,871 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 2,512,659 | 4.95 | $60,379,195 | 30-Sep-09 | | RAINIER INVESTMENT MANAGEMENT | 1,927,890 | 3.80 | $46,327,196 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,919,835 | 3.78 | $46,133,635 | 30-Sep-09 | | GRANAHAN INVESTMENT MANAGEMENT INC. | 1,676,700 | 3.30 | $40,291,101 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 1,660,550 | 3.27 | $39,903,016 | 30-Sep-09 | | ST. DENIS J. VILLERE & COMPANY | 1,531,640 | 3.02 | $36,805,309 | 30-Sep-09 |
|
| Holder | Shares | % Out | Value* | Reported | | WADDELL & REED ADVISORS FDS-SCIENCE & TECHNOLOGY FUND | 2,570,450 | 5.06 | $49,841,025 | 30-Jun-09 | | RS INVESTMENT TRUST-PARTNERS FUND | 1,881,168 | 3.71 | $45,204,467 | 30-Sep-09 | | VANGUARD EXPLORER FUND, INC. | 1,418,990 | 2.80 | $29,855,549 | 31-Jul-09 | | LEGG MASON SPECIAL INVESTMENT TRUST, INC. | 800,000 | 1.58 | $19,224,000 | 30-Sep-09 | | FIDELITY SELECT PORTFOLIOS - FINANCIAL SERVICES | 764,547 | 1.51 | $18,372,064 | 30-Sep-09 | | IVY SCIENCE & TECHNOLOGY FUND | 726,200 | 1.43 | $14,081,018 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 714,865 | 1.41 | $17,178,205 | 30-Sep-09 | | JANUS VENTURE FUND | 645,080 | 1.27 | $15,501,272 | 30-Sep-09 | | Fidelity Asset Manager 50% | 586,968 | 1.16 | $14,104,841 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 552,757 | 1.09 | $10,717,958 | 30-Jun-09 |
|
|
*
|
Value shown is computed using the security's price on the report date given.
|
|