Transaction Details

Footnotes

Each share is represented by a Restricted Stock Unit ("RSU") and a contingent right to receive one share of common stock of the Issuer. 100% of the RSUs shall vest upon the earlier of (i) the one year anniversary of the grant date or (ii) the day preceding the Issuer's next annual meeting of stockholders occurring after the grant date. | Includes 6,037 unvested RSUs. | The shares are held of record by The Tessier-Lavigne/Hynes Irrevocable Trust 1, for which the Reporting Person serves as trustee. | The shares are held of record by The Tessier-Lavigne/Hynes Irrevocable Trust 2, for which the Reporting Person serves as trustee. | The shares are held of record by The Tessier-Lavigne/Hynes Irrevocable Trust 3, for which the Reporting Person serves as trustee. | 100% of the shares subject to the option shall vest upon the earlier of (i) the one year anniversary of the grant date or (ii) the day preceding the Issuer's next annual meeting of stockholders occurring after the grant date.