| Id | Content |
|---|---|
| F1 | Shares were sold solely to cover the associated tax liability upon the vesting of a previously granted award of Restricted Stock Units (RSUs). |
| F2 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.98 to $3.01, inclusive. The reporting person undertakes to provide to the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. |
| F3 | Includes 219,527 RSUs which are payable in an equivalent number of shares of the Issuer's common stock. |