| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Norwest Venture Partners VIII, LP | 11,814,525 | 9.64 | $201,555,796 | 30-Sep-09 | | Legg Mason Capital Management, Inc. | 5,381,340 | 4.39 | $91,805,660 | 30-Sep-09 | | PRICE (T.ROWE) ASSOCIATES INC | 3,588,613 | 2.93 | $61,221,737 | 30-Sep-09 | | GILDER, GAGNON, HOWE & CO. | 2,613,771 | 2.13 | $44,590,933 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 2,596,300 | 2.12 | $44,292,878 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,401,948 | 1.96 | $40,977,232 | 30-Sep-09 | | ALKEON CAPITAL MANAGEMENT LLC | 2,300,000 | 1.88 | $39,238,000 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 2,004,287 | 1.64 | $34,193,136 | 30-Sep-09 | | NEXT CENTURY GROWTH INVESTORS LLC | 1,285,100 | 1.05 | $21,923,806 | 30-Sep-09 | | STATE STREET CORPORATION | 1,234,042 | 1.01 | $21,052,756 | 30-Sep-09 |
|
| Holder | Shares | % Out | Value* | Reported | | LEGG MASON SPECIAL INVESTMENT TRUST, INC. | 1,200,000 | .98 | $20,472,000 | 30-Sep-09 | | PRICE (T.ROWE) SCIENCE & TECHNOLOGY FUND | 1,072,403 | .88 | $18,295,195 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 975,784 | .80 | $16,646,875 | 30-Sep-09 | | PRICE (T.ROWE) MEDIA & TELECOMMUNICATIONS FUND | 599,100 | .49 | $10,220,646 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 567,892 | .46 | $7,870,983 | 30-Jun-09 | | LEGG MASON GROWTH TRUST, INC. | 530,000 | .43 | $9,041,800 | 30-Sep-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 511,184 | .42 | $8,720,799 | 30-Sep-09 | | PRICE (T.ROWE) NEW HORIZONS FUND | 485,900 | .40 | $8,289,454 | 30-Sep-09 | | MFS NEW DISCOVERY FUND | 433,540 | .35 | $5,610,007 | 31-Aug-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 360,747 | .29 | $4,999,953 | 30-Jun-09 |
|
|
*
|
Value shown is computed using the security's price on the report date given.
|
|