| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | GAGNON SECURITIES, LLC | 3,934,050 | 7.21 | $17,113,117 | 30-Sep-09 | | HEALTHCOR MANAGEMENT LP | 3,850,000 | 7.06 | $16,747,500 | 30-Sep-09 | | KOPP INVESTMENT ADVISORS. INC. | 3,344,566 | 6.13 | $14,548,862 | 30-Sep-09 | | U.S. BANCORP (MINNESOTA) | 2,823,492 | 5.18 | $12,282,190 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,752,437 | 5.05 | $11,973,100 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 2,241,967 | 4.11 | $9,752,556 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,932,848 | 3.54 | $8,407,888 | 30-Sep-09 | | FORT WASHINGTON INVESTMENT ADVISORS, INC. | 1,843,710 | 3.38 | $8,020,138 | 30-Sep-09 | | Cortina Asset Management, LLC | 1,523,410 | 2.79 | $6,626,833 | 30-Sep-09 | | FMR LLC | 6,226,335 | 11.41 | $27,084,557 | 30-Sep-09 |
|
| Holder | Shares | % Out | Value* | Reported | | FIDELITY SMALL CAP STOCK FUND | 2,242,052 | 4.11 | $9,932,290 | 31-Jul-09 | | FIDELITY SELECT PORTFOLIOS - MEDICAL EQUIPMENT & SYSTEMS | 1,665,600 | 3.05 | $7,245,360 | 30-Sep-09 | | FIRST AMERICAN SMALL CAP SELECT FUND | 987,307 | 1.81 | $4,294,785 | 30-Sep-09 | | FIDELITY SELECT PORTFOLIOS - HEALTH CARE | 959,183 | 1.76 | $4,172,446 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 798,127 | 1.46 | $3,471,852 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 657,135 | 1.20 | $2,819,109 | 30-Jun-09 | | JOHN HANCOCK SMALL CAP EQUITY FUND | 589,204 | 1.08 | $2,309,679 | 31-Oct-09 | | Transamerica Partners Fd-Small Core Port | 498,218 | .91 | $2,137,355 | 30-Jun-09 | | VANGUARD SMALL CAP VALUE INDEX FUND | 407,497 | .75 | $1,748,162 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 340,779 | .62 | $1,461,941 | 30-Jun-09 |
|
|
*
|
Value shown is computed using the security's price on the report date given.
|
|