| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | MPM Asset Management, LLC | 4,632,562 | 19.60 | $11,025,497 | 30-Sep-09 | | Argyll Research, LLC | 444,497 | 1.88 | $1,057,902 | 30-Sep-09 | | SAND HILL ADVISORS, INC. | 260,224 | 1.10 | $619,333 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 108,972 | .46 | $259,353 | 30-Sep-09 | | PRICE (T.ROWE) ASSOCIATES INC | 60,000 | .25 | $142,800 | 30-Sep-09 | | CALPERS (CALIFORNIA-PUBLIC EMPLOYEES RETIREMENT SYSTEM) | 55,700 | .24 | $132,566 | 30-Sep-09 | | NORTHERN TRUST CORPORATION | 53,456 | .23 | $127,225 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 47,595 | .20 | $113,276 | 30-Sep-09 | | MILLENNIUM MANAGEMENT LLC | 40,178 | .17 | $95,623 | 30-Sep-09 | | WEXFORD CAPITAL LLC | 18,000 | .08 | $42,840 | 30-Sep-09 |
|
| Holder | Shares | % Out | Value* | Reported | | VANGUARD EXTENDED MARKET INDEX FUND | 46,009 | .19 | $50,609 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 36,373 | .15 | $77,110 | 31-Jul-09 | | DFA U.S. Core Equity 2 Portfolio | 10,200 | .04 | $21,624 | 31-Jul-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 7,756 | .03 | $15,667 | 31-Oct-09 | | DFA U.S. SMALL CAP SERIES | 5,100 | .02 | $10,812 | 31-Jul-09 | | QUANTITATIVE MASTER SERIES TR-EXTENDED MARKET INDEX SERI | 3,000 | .01 | $3,300 | 30-Jun-09 | | SA FDS INV TR-U.S. SMALL COMPANY FD | 2,900 | .01 | $3,190 | 30-Jun-09 | | DFA U.S. Core Equity 1 Portfolio | 2,500 | .01 | $5,300 | 31-Jul-09 | | FIDELITY NASDAQ COMPOSITE INDEX TRACKING STOCK | 2,420 | .01 | $4,888 | 31-Oct-09 | | Old Westbury Global Small & Mid Cap Fund | 1,900 | .01 | $4,028 | 31-Jul-09 |
|
|
*
|
Value shown is computed using the security's price on the report date given.
|
|