Option Holder is a holder of options to purchase a number of shares of common stock of the Company (the “Option Shares”) pursuant to the Option Agreement(s) described on Schedule A. To the extent that any Option Shares granted in any one calendar year exceed 100,000 shares, Option Holder hereby agrees to forfeit all rights to purchase the Option Shares comprising the excess (the “Excess Shares”), as indicated in the “Excess Shares” column in Schedule A. For any Option Agreement, the Excess Shares forfeited shall be those that would vest last in time.