If Ms. Larson's employment is involuntarily terminated other than following a change in control, Ms. Larson will receive (i) a lump-sum cash payment equal to six months of her then effective annual base salary, (ii) a payment that may be used toward the cost of health care continuation coverage for up to six months, and (iii) six months accelerated vesting of unvested options to purchase Company Common Stock. If Ms. Larson's employment is involuntarily terminated within twenty-four months following a change in control, Ms. Larson will receive (i) a lump-sum cash payment equal to twelve months of her then effective annual base salary, (ii) a lump-sum cash payment equal to her target bonus, (iii) a payment that may be used toward the cost of health care continuation coverage for up to twelve months, and (iv) the ability to exercise her then outstanding vested options to purchase Company Common Stock for up to three years following her termination. In addition, if, in connection with a change in control, Ms. Larson is offered and accepts a position with the acquirer, or is not offered a comparable position with the acquirer, then, as of immediately prior to the closing of the change in control, her then outstanding but unvested options to purchase Company Common Stock will become vested as to the number of shares underlying each such option that would have vested, in the ordinary course, in the following two years.