| INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS |
| Date | Insider | Shares | Type | Transaction | Value* | | 18-Mar-09 | JING CHEN
Officer | N/A | Direct | Statement of Ownership | N/A | | 29-Feb-08 | ARDSLEY ADVISORY PARTNERS
Beneficial Owner (10% or more) | 1,666,500 | Indirect | Statement of Ownership | N/A | | 28-Feb-08 | QUERCUS TRUST
Beneficial Owner (10% or more) | 2,449,283 | Direct | Statement of Ownership | N/A |
|
* = Where indicated, some values are estimates.
1 = Potential proceeds estimated by the filer.
2 = Estimated based on the average of multiple prices reported.
3 = Multiple dates reported. Most recent date shown. |
|
0.04% Nasdaq 
0.37%
Insider Transactions
